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42
SantaBarbaraCA.gov/Water PUBLIC WORKS DEPARTMENT WATER RESOURCES DIVISION LONG TERM WATER SUPPLY PLAN ADAPTIVE MANAGEMENT February 16, 2017

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Page 1: PUBLIC WORKS DEPARTMENT WATER RESOURCES DIVISION …...mountain • Supply ranges from ... Water Supplies –State Water • A small, but useful part of our water supply • Both the

SantaBarbaraCAgovWater

PUBLIC WORKS DEPARTMENT

WATER RESOURCES DIVISION

LONG TERM WATER SUPPLY PLAN ADAPTIVE MANAGEMENT

February 16 2017

SantaBarbaraCAgovWater2

Overviewbull Current Supply Plan adopted in 1994bull Significant Demand Reductions Achievedbull Supply Projected to be Adequate through

Planning Periodbull Drought is Still the Main Challengebull Manage Water Supplies to Defer Use of

Desalination

SantaBarbaraCAgovWater3

Historical Backgroundbull Master Water Plan (1985)

- More Water Needed- Plan to Raise Gibraltar Dam

bull Five-Year Water PolicyAction Plan (1988)- Raising Gibraltar Faced

Challenges- Promote Conservation- Initiate Planning for Desalination- Long-Term Water Ordinance ndash

Development Restrictions

1980s Water Supply(AF of Capacity)

Gibraltar7400 AF

Cachuma9700 AF

Groundwater4500 AF

Chart3

Gibraltar7400 AF
Cachuma9700 AF
Groundwater4500 AF
1980s
1980s Water Supply(AF of Capacity)
9700
7400
4500

ltwspCht

ampA
Page ampP
Recycled
Cachuma
Gib etc
SWP
GW
Desal
Shortage
Water Supply (AF)
Figure 1 Long-Term Water Supply ProgramUpdated to include surchararge fish releases and 1990 drought
900
82773366
6366
23566634
300
900
82773366
5865
2400
7576634
900
82773366
5560
2400
10626634
900
82773366
5483
2400
11396634
900
82773366
5931
27916634
300
900
82773366
5829
28936634
300
900
82773366
5494
1500
20286634
900
82773366
5294
1290
24386634
900
82773366
5406
1740
18766634
900
82773366
5643
2550
8296634
900
82773366
5548
2580
8946634
900
82773366
5425
1680
19176634
900
8231514135
5330
1710
2028485865
900
7305562347
4673246
1260
4061191653
900
7856777469
471278
1320
3410442531
900
82773366
5451
1140
24316634
900
82773366
5347
990
26856634
900
82773366
5528
1950
15446634
900
82773366
5544
2460
10186634
900
82773366
5797
2220
10056634
900
82773366
6110
26126634
300
900
82773366
5914
2640
4686634
900
82773366
5586
2460
9766634
900
82773366
6405
23176634
300
900
82773366
6250
24726634
300
900
82773366
6189
25336634
300
900
82773366
6084
26386634
300
900
82773366
5804
2700
5186634
900
82773366
5630
2640
7526634
900
82773366
5427
2250
13456634
900
82773366
5236
2010
17766634
900
7855786017
2020508
1950
4500
974
900
6759906438
3335608
2010
4500
694485562
900
547040079
500
2640
4500
3000
1189893227
900
7545802755
441926
2880
300
2155
900
82773366
5700
2700
300
323
900
82773366
5494
2490
300
739
900
82773366
5431
2070
300
1222
900
8233699836
5462
2700
904300164
900
7520604423
5411
2640
1728395577
900
787483284
5997
2700
72816716
900
82773366
5921
2640
4616634
900
82773366
5497
1890
16356634
900
82773366
4178353
1830
30143104
900
82773366
4147065
2340
25355984
900
82773366
5537
2820
6656634
900
82773366
5327
2640
10556634
900
8080887468
5309
2460
1450112532
900
8219636025
5639
2880
561363975
900
82773366
5896
28266634
300
900
82773366
5675
2670
6776634
900
82773366
6326
23966634
300
900
82773366
6036
2670
3166634
900
82773366
5733
2820
4696634
900
82773366
5443
2640
9396634
900
82773366
5747
2460
8156634
900
82773366
5785
2820
4176634
900
82773366
5742
2880
4006634
900
82773366
5515
2640
8676634
900
82773366
5279
990
27536634
900
82773366
6052
2040
9306634
900
82773366
6171
2550
3016634
900
82773366
6188
2460
3746634
900
82773366
6145
2490
3876634
900
82773366
5988
27346634
300
900
82773366
6955
17676634
300
900
82773366
6304
24186634
300
900
82773366
5851
28716634
300
900
82773366
5703
2430
8896634
900
82773366
5321
2070
16316634
900
82773366
5858
1290
18746634
900
7990356312
5641
1740
1928643688
900
6885154509
2170335
1380
4500
2364510491
900
682933383
271296
870
4500
238770617
900
7997267505
5860
930
300
2213
900
82773366
6866
18566634
300

LTWSP2002

LTWSP2002 (coincide)

Text of Accompanying Email

Chart1

Maximum Capacity (AF)
8277
5000
1000
3000
4150
800
300
3125

Pie Chart Data

Pie Chart Data

Cachuma8277 AF
Gibraltar6000 AF
Groundwater4150 AF
State Water3000 AF
Recycled800 AF
Desalination3125 AF
Current
Current Water Supply(AF of Capacity)
Gibraltar7400 AF
Cachuma9700 AF
Groundwater4500 AF
1980s
1980s Water Supply(AF of Capacity)

SantaBarbaraCAgovWater4

Historical Backgroundbull Gibraltar Pass Through Agreement

(1989)- Gibraltar Enlargement Deferred- City to ldquoPass Throughrdquo Gibraltar

Water to Cachuma

bull 1987 ndash 1991 Drought - 50 Cutbacks Sought - State Water Bond Approval- Advisory Vote for Desal

Gibraltar Reservoir1989

SantaBarbaraCAgovWater5

Historical BackgroundLong-Term Water Supply Program (1994)

- Added Recycled WaterDesal amp State Water

- Critical Period Planning- Demand Estimate per

General Plan Update (1989)- Water Conservation savings

of 1500 AFY planned

LTWSP Water Supply(AF of Capacity)

Cachuma8277 AF

Gibraltar6000 AF

Groundwater4150 AF

State Water3000 AF

Recycled800 AF

Desalination3125 AF

Chart2

Cachuma8277 AF
Gibraltar6000 AF
Groundwater4150 AF
State Water3000 AF
Recycled800 AF
Desalination3125 AF
Current
LTWSP Water Supply(AF of Capacity)
8577
6000
4150
800
3000
3125

ltwspCht

ampA
Page ampP
Recycled
Cachuma
Gib etc
SWP
GW
Desal
Shortage
Water Supply (AF)
Figure 1 Long-Term Water Supply ProgramUpdated to include surchararge fish releases and 1990 drought
900
82773366
6366
23566634
300
900
82773366
5865
2400
7576634
900
82773366
5560
2400
10626634
900
82773366
5483
2400
11396634
900
82773366
5931
27916634
300
900
82773366
5829
28936634
300
900
82773366
5494
1500
20286634
900
82773366
5294
1290
24386634
900
82773366
5406
1740
18766634
900
82773366
5643
2550
8296634
900
82773366
5548
2580
8946634
900
82773366
5425
1680
19176634
900
8231514135
5330
1710
2028485865
900
7305562347
4673246
1260
4061191653
900
7856777469
471278
1320
3410442531
900
82773366
5451
1140
24316634
900
82773366
5347
990
26856634
900
82773366
5528
1950
15446634
900
82773366
5544
2460
10186634
900
82773366
5797
2220
10056634
900
82773366
6110
26126634
300
900
82773366
5914
2640
4686634
900
82773366
5586
2460
9766634
900
82773366
6405
23176634
300
900
82773366
6250
24726634
300
900
82773366
6189
25336634
300
900
82773366
6084
26386634
300
900
82773366
5804
2700
5186634
900
82773366
5630
2640
7526634
900
82773366
5427
2250
13456634
900
82773366
5236
2010
17766634
900
7855786017
2020508
1950
4500
974
900
6759906438
3335608
2010
4500
694485562
900
547040079
500
2640
4500
3000
1189893227
900
7545802755
441926
2880
300
2155
900
82773366
5700
2700
300
323
900
82773366
5494
2490
300
739
900
82773366
5431
2070
300
1222
900
8233699836
5462
2700
904300164
900
7520604423
5411
2640
1728395577
900
787483284
5997
2700
72816716
900
82773366
5921
2640
4616634
900
82773366
5497
1890
16356634
900
82773366
4178353
1830
30143104
900
82773366
4147065
2340
25355984
900
82773366
5537
2820
6656634
900
82773366
5327
2640
10556634
900
8080887468
5309
2460
1450112532
900
8219636025
5639
2880
561363975
900
82773366
5896
28266634
300
900
82773366
5675
2670
6776634
900
82773366
6326
23966634
300
900
82773366
6036
2670
3166634
900
82773366
5733
2820
4696634
900
82773366
5443
2640
9396634
900
82773366
5747
2460
8156634
900
82773366
5785
2820
4176634
900
82773366
5742
2880
4006634
900
82773366
5515
2640
8676634
900
82773366
5279
990
27536634
900
82773366
6052
2040
9306634
900
82773366
6171
2550
3016634
900
82773366
6188
2460
3746634
900
82773366
6145
2490
3876634
900
82773366
5988
27346634
300
900
82773366
6955
17676634
300
900
82773366
6304
24186634
300
900
82773366
5851
28716634
300
900
82773366
5703
2430
8896634
900
82773366
5321
2070
16316634
900
82773366
5858
1290
18746634
900
7990356312
5641
1740
1928643688
900
6885154509
2170335
1380
4500
2364510491
900
682933383
271296
870
4500
238770617
900
7997267505
5860
930
300
2213
900
82773366
6866
18566634
300

LTWSP2002

LTWSP2002 (coincide)

Text of Accompanying Email

Chart1

Maximum Capacity (AF)
8277
5000
1000
3000
4150
800
300
3125

Pie Chart Data

Pie Chart Data

Cachuma8277 AF
Gibraltar6000 AF
Groundwater4150 AF
State Water3000 AF
Recycled800 AF
Desalination3125 AF
Current
Current Water Supply(AF of Capacity)
Gibraltar7400 AF
Cachuma9700 AF
Groundwater4500 AF
1980s
1980s Water Supply(AF of Capacity)

SantaBarbaraCAgovWater6

City of Santa Barbara Water Demand(Acre Feet of Production by Calendar Year - Potable + Recycled)

0

2500

5000

7500

10000

12500

15000

17500

20000

1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010

Figure ___

Total System Production (AF)

12 Months Ending

13374

February 28 2011

Post-DroughtPre-Drought Drought

SantaBarbaraCAgovWater7

Water Supplies - Cachumabull Primary City

Water Supply

bull Multi-Year SourceA few dry years notan issue

bull 8277 AFYCurrent Entitlement

bull 7863 AFYProjected Entitlement (2030)

SantaBarbaraCAgovWater8

Water Supplies - Cachuma

0

50000

100000

150000

200000

250000

1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011Water Year

Historical StorageVolumes1987-1993 Period

Recent History of Lake Cachuma Storage Levels (AF)With 1987-1993 Period Shown for Comparison

Figure ____

SantaBarbaraCAgovWater9

Water Supplies - Gibraltarbull ldquoPass Throughrdquo

implementationin progress

bull Modelingunder review

bull Conservative planning assumptions used pending modeling results

bull Sedimentation management study planned

SantaBarbaraCAgovWater10

Water Supplies ndash Mission Tunnelbull Infiltration from

percolating groundwateron both sides of themountain

bull Supply ranges from500 to 2375 AFY

bull Average contribution1125 AFY

SantaBarbaraCAgovWater11

Water Supplies ndash State Waterbull A small but useful part of our water

supply

bull Both the water amp the pipeline have value

bull Cityrsquos maximum delivery amount - 3300 AFY

bull Deliveries subject to availability

SantaBarbaraCAgovWater12

Water Supplies ndash State Waterbull Projections based on DWR

modeling using long-term databull No Delta or storage

improvementsbull Environmental limits remain in

effectbull Climate change effects assumed

SantaBarbaraCAgovWater13

Water Supplies - Groundwater

SantaBarbaraCAgovWater14

Water Supplies ndash Groundwaterbull Pumping occurs in

Downtown amp OuterState Street areas

bull 1300 AFY safe yieldbull Average City pumping

assumed at ~1100 AFYbull Maximum of 4150 AFY during drought

Ortega Groundwater Treatment Plant

SantaBarbaraCAgovWater15

Water Supplies ndash Recycled WaterRecycled Water Distribution System

SantaBarbaraCAgovWater16

Water Supplies ndash Recycled Waterbull Displaces use of potable

water amp extends water supplybull Current connected

demand 800 AFYbull 300 AFY potential demand amp capacity identifiedbull Target demand 1100 AFYbull Blending an economical solution for reducing mineral

contentbull Policy issues related to blending

SantaBarbaraCAgovWater17

Water Supplies ndash Recycled Water

SantaBarbaraCAgovWater18

Recycled Water Blending bull Filterability (turbidity) - solution identifiedbull Mineral Content (salts) separate issue -

- Blending $180AF added operating cost- MFRO $341AF added cost + $46 million

capitalbull Proposed Policy ldquoContingency Plan to

eliminate blending with goal to be ready to implement plan based on economic regulatory or water supply requirementsrdquo

SantaBarbaraCAgovWater19

Water Supplies - Desalination

bull Reliable butexpensive source

bull $177 million toreactivate if needed

bull Important to keepfor use in case ofextended drought

bull Proposed Planning Goal Avoid use until year six of Critical Drought Period

SantaBarbaraCAgovWater20

Demand Managementbull Declining demand

- Best Management Practices (CUWCC)- Conservation Program- 20 x 2020- Plumbing Code amp Appliance Standards

bull Projected development - 800 to 900 AFY bull Water Conservation Technical Evaluation

SantaBarbaraCAgovWater21

Demand Projections

12000

12500

13000

13500

14000

14500

15000

2010 2012 2014 2016 2018 2020 2022 2024 2026 2028 2030

Plan SB Demand (No Plumbing Code or Conservation Effects)Plumbing Code Effects OnlyPlumbing Code + Program B20 X 2020 Trend Line20 X 2020 Regulatory Limit

Water System Demand Projections (AFY)

SantaBarbaraCAgovWater22

Water Supply Planning Target

Projected Demand 14000Safety Margin (10) + 1400

Water Supply Target = 15400 AFY

SantaBarbaraCAgovWater23

Water Supply Planning Conceptsbull Planning for 6-Year Critical Drought Periodbull Water Supply Modeling - Using Historical

Data with Current Water Supply Sources and Projected Demands

bull Ongoing Conservation vs Short Term Planned Demand Reductions for Extraordinary Situations

SantaBarbaraCAgovWater24

Water Supply Performance

SantaBarbaraCAgovWater25

SantaBarbaraCAgovWater26

SantaBarbaraCAgovWater27

SantaBarbaraCAgovWater28

Key Policy Issuesbull Achieve 20 x 2020 through BMPs Additional

Conservation Measures amp Recycled Waterbull Planning for a 6-Year Duration Critical Drought

- Manage supplies to avoid use of Desal until year six- Water Banking Purchases- Planned Demand Reductions 10 to 15- Recycled Water Expansion

bull Recycled Water Blending bull Sedimentation Management

SantaBarbaraCAgovWater29

Next Stepsbull Finalize updated Long-Term Water

Supply Plan- April 11 Final Comments from Water

Commission- Environmental Review

bull Prepare Urban Water Management Plan Update per State Requirements

bull Target Adoption Date for LTWSP amp UWMP - June 14 2011

SantaBarbaraCAgovWater30

Discussion amp Feedback

SantaBarbaraCAgovWater31

SantaBarbaraCAgovWater32

SantaBarbaraCAgovWater33

SantaBarbaraCAgovWater34

SantaBarbaraCAgovWater35

SantaBarbaraCAgovWater36

Upper Santa Ynez River Operations Agreement(ldquoPass Through Agreementrdquo)

SantaBarbaraCAgovWater37

Context of 1989 Agreementbull City water supply shortage identified ndash Gibraltar

vulnerable to siltation

bull Solution Raise Gibraltar Dam 20rsquo to 40rsquo

bull Challenges by downstream and environmental interests

bull Cachuma enlargement under consideration

SantaBarbaraCAgovWater38

Parties to the Agreement

bull City of Santa Barbarabull Carpinteria Valley Water Districtbull Goleta Water Districtbull Montecito Water Districtbull Santa Ynez River Water Conservation Districtbull SYRWCD Improvement District No 1

Consent and Acknowledgement by US Bureau of Reclamation

SantaBarbaraCAgovWater39

Pass Through Summer no inflow

Current volume (reflects on-going siltation since 1988)

1988 Reservoir volume

Note different siltation levels

SantaBarbaraCAgovWater40

Smaller Reservoir Spills Sooner1988 Reservoir volume

Current Reservoir volume

SantaBarbaraCAgovWater41

Difference is Stored in Cachuma as Gibraltar WaterBase Reservoir

Actual Reservoir

SantaBarbaraCAgovWater42

  • Long Term Water Supply Plan Adaptive Management
  • Overview
  • Historical Background
  • Historical Background
  • Historical Background
  • Slide Number 6
  • Water Supplies - Cachuma
  • Water Supplies - Cachuma
  • Water Supplies - Gibraltar
  • Water Supplies ndash Mission Tunnel
  • Water Supplies ndash State Water
  • Water Supplies ndash State Water
  • Water Supplies - Groundwater
  • Water Supplies ndash Groundwater
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Recycled Water Blending
  • Water Supplies - Desalination
  • Demand Management
  • Demand Projections
  • Water Supply Planning Target
  • Water Supply Planning Concepts
  • Water Supply Performance
  • Slide Number 25
  • Slide Number 26
  • Slide Number 27
  • Key Policy Issues
  • Next Steps
  • Discussion amp Feedback
  • Slide Number 31
  • Slide Number 32
  • Slide Number 33
  • Slide Number 34
  • Slide Number 35
  • Slide Number 36
  • Context of 1989 Agreement
  • Parties to the Agreement
  • Pass Through Summer no inflow
  • Smaller Reservoir Spills Sooner
  • Difference is Stored in Cachuma as Gibraltar Water
  • Slide Number 42
Detailed Simple
Maximum Capacity () Maximum Capacity (AF) 1980s Current
Lake Cachuma 32 8277 Cachuma 9700 8577
Gibraltar Reservoir 19 5000 Gibraltar 7400 6000
Mission Tunnel 4 1000 Groundwater 4500 4150
State Water Project 12 3000 Recycled Water 800
Groundwater 16 4150 State Water 3000
Recycled Water 3 800 Desalination 3125
Montecito Transfer 1 300 Totals 21600 25652
Desalination 12 3125
100 25652
Lake Cachuma
Gibraltar Reservoir
Mission Tunnel
State Water Project
Groundwater
Recycled Water
Montecito Transfer
Desalination
In our review of the FMP EIREIS we had a small discussion on how to characterize our water supplies in particular State Water In that discussion I commented that the average State Water delivery did not apply to how we did our water supply planning a
The supply target in this analysis is 18200 AFY with a goal of having no shortage greater than 1820 (10) in any year The critical year is 1951 This supply target was developed for us by our Community Development Department for the LTWSP and include
The Cityrsquos supply strategy as modeled is to
use all surface water supply first with a minimum (300 AFY) amount of local groundwater
use available State Water to get us to the supply target
if enough State Water is not available meet the supply target with local groundwater up to 4500 AFY
if that is not enough turn on the desal plant with a goal of having no shortage greater than 1820 AFY in the critical year
The modeling results presented in the first spreadsheet page (LTWSP2002) and the chart shows that our supplies meet the overall production target and satisfy the goal of having a shortage less than 10 in the critical year
In this analysis State Water is an important element in meeting the annual target and the critical year shortage goal The average delivery of State Water is meaningless in this analysis Also with the Cityrsquos approach our average delivery of State Wat
Another important consideration is that the estimates of State Water deliveries based on history result in historical critical periods for the Santa Ynez River and the State Water Project not coinciding I think it is acceptable for one to do this analys
I am not sure where this leaves us with respect to what we put in the FMP EISEIR for our individual water supplies For the City of Santa Barbara input I can give John Gray the bottom line of the spreadsheet with our averages for the 76 year period T
One value of the Cityrsquos approach is that it gives some meaning to the shortages that would happen (or at least are modeled to happen) if the surcharge is not included or other changes to Cachuma Project yield are suggested Our goal again is a shortage
LONG TERM WATER SUPPLY PROGRAM SUPPLY SCENARIO
As estimated by the Santa Ynez River Hydrology Model using 3 ft surcharge and BO fish releases
State Water critical period is moved to coincide with Cachuma critical period
Water Conservation and GW recharge is left out of this version
Includes ground water recovery and 10 safety margin values in acre feet production is 18200 AFY
Filename=LTWSP2002xls SWP
Year Cachuma Desal SWP GibJun GW Recycled Total Shortage
1918 8277 2357 6366 300 900 18200 14300 80
1919 8277 2400 5865 758 900 18200 14300 80
1920 8277 2400 5560 1063 900 18200 14300 80
1921 8277 2400 5483 1140 900 18200 14300 80
1922 8277 2792 5931 300 900 18200 14300 94 094
1923 8277 2894 5829 300 900 18200 14300 99 099
1924 8277 1500 5494 2029 900 18200 14300 50 05
1925 8277 1290 5294 2439 900 18200 14300 43 043
1926 8277 1740 5406 1877 900 18200 14300 58 058
1927 8277 2550 5643 830 900 18200 14300 85 085
1928 8277 2580 5548 895 900 18200 14300 86 086
1929 8277 1680 5425 1918 900 18200 14300 56 056
1930 8232 2250 5330 1488 900 18200 14300 75 057
1931 7306 2010 4673 3311 900 18200 14300 67 042
1932 7857 1950 4713 2780 900 18200 14300 65 044
1933 8277 2010 5451 1562 900 18200 14300 67 038
1934 8277 2640 5347 1036 900 18200 14300 88 033
1935 8277 1950 5528 1545 900 18200 14300 65 065
1936 8277 2460 5544 1019 900 18200 14300 82 082
1937 8277 2220 5797 1006 900 18200 14300 74 074
1938 8277 2613 6110 300 900 18200 14300 94 094
1939 8277 2640 5914 469 900 18200 14300 88 088
1940 8277 2460 5586 977 900 18200 14300 82 082
1941 8277 2318 6405 300 900 18200 14300 97 097
1942 8277 2473 6250 300 900 18200 14300 100 1
1943 8277 2534 6189 300 900 18200 14300 89 089
1944 8277 2639 6084 300 900 18200 14300 92 092
1945 8277 2700 5804 519 900 18200 14300 90 09
1946 8277 2640 5630 753 900 18200 14300 88 088
1947 8277 1710 5427 1886 900 18200 14300 57 075
1948 8277 1260 5236 2527 900 18200 14300 42 067
1949 7856 1604 1320 2021 4500 900 18200 -0 14300 44 065
1950 6760 1564 1140 3336 4500 900 18200 0 14300 38 067
1951 5470 3000 990 500 4500 900 15360 2840 01560380894 14300 33 088
1952 7546 2155 2880 4419 300 900 18200 14300 96 096
1953 8277 323 2700 5700 300 900 18200 14300 90 09
1954 8277 739 2490 5494 300 900 18200 14300 83 083
1955 8277 1222 2070 5431 300 900 18200 14300 69 069
1956 8234 2700 5462 904 900 18200 14300 90 09
1957 7521 2640 5411 1728 900 18200 14300 88 088
1958 7875 2700 5997 728 900 18200 14300 90 09
1959 8277 2640 5921 462 900 18200 14300 88 088
1960 8277 1890 5497 1636 900 18200 14300 63 063
1961 8277 1830 4178 3014 900 18200 14300 61 061
1962 8277 2340 4147 2536 900 18200 14300 78 078
1963 8277 2820 5537 666 900 18200 14300 94 094
1964 8277 2640 5327 1056 900 18200 14300 88 088
1965 8081 2460 5309 1450 900 18200 14300 82 082
1966 8220 2880 5639 561 900 18200 14300 96 096
1967 8277 2827 5896 300 900 18200 14300 96 096
1968 8277 2670 5675 678 900 18200 14300 89 089
1969 8277 2397 6326 300 900 18200 14300 93 093
1970 8277 2670 6036 317 900 18200 14300 89 089
1971 8277 2820 5733 470 900 18200 14300 94 094
1972 8277 2640 5443 940 900 18200 14300 88 088
1973 8277 2460 5747 816 900 18200 14300 82 082
1974 8277 2820 5785 418 900 18200 14300 94 094
1975 8277 2880 5742 401 900 18200 14300 96 096
1976 8277 2640 5515 868 900 18200 14300 88 088
1977 8277 990 5279 2754 900 18200 14300 33 033
1978 8277 2040 6052 931 900 18200 14300 68 068
1979 8277 2550 6171 302 900 18200 14300 85 085
1980 8277 2460 6188 375 900 18200 14300 82 082
1981 8277 2490 6145 388 900 18200 14300 83 083
1982 8277 2735 5988 300 900 18200 14300 94 094
1983 8277 1768 6955 300 900 18200 14300 100 1
1984 8277 2419 6304 300 900 18200 14300 100 1
1985 8277 2872 5851 300 900 18200 14300 96 096
1986 8277 2430 5703 890 900 18200 14300 81 081
1987 8277 2070 5321 1632 900 18200 14300 69 069
1988 8277 1290 5858 1875 900 18200 14300 43 043
1989 7990 1740 5641 1929 900 18200 14300 58 058
1990 6885 2365 1380 2170 4500 900 18200 14300 46 046
1991 6829 2388 870 2713 4500 900 18200 14300 29 029
1992 7997 2213 930 5860 300 900 18200 14300 31 031
1993 8277 1857 6866 300 900 18200 14300 76 076
Average 8122 231 2249 5436 1224 900 18163 769342 088
2241
7470
163592
LONG TERM WATER SUPPLY PROGRAM SUPPLY SCENARIO
As estimated by the Santa Ynez River Hydrology Model using 3 ft surcharge and BO fish releases
State Water deliveries are based on delivery estimates provided by CCWA in 2001
Water Conservation and GW recharge is left out of this version
Includes ground water recovery and 10 safety margin values in acre feet production is 18200 AFY
Filename=LTWSP2002xls SWP
Year Cachuma Desal SWP GibJun GW Recycled Total Shortage
1918 8277 2357 6366 300 900 18200 14300 80
1919 8277 2400 5865 758 900 18200 14300 80
1920 8277 2400 5560 1063 900 18200 14300 80
1921 8277 2400 5483 1140 900 18200 14300 80
1922 8277 2792 5931 300 900 18200 14300 94 094
1923 8277 2894 5829 300 900 18200 14300 99 099
1924 8277 1500 5494 2029 900 18200 14300 50 05
1925 8277 1290 5294 2439 900 18200 14300 43 043
1926 8277 1740 5406 1877 900 18200 14300 58 058
1927 8277 2550 5643 830 900 18200 14300 85 085
1928 8277 2580 5548 895 900 18200 14300 86 086
1929 8277 1680 5425 1918 900 18200 14300 56 056
1930 8232 1710 5330 2028 900 18200 14300 57 057
1931 7306 1260 4673 4061 900 18200 14300 42 042
1932 7857 1320 4713 3410 900 18200 14300 44 044
1933 8277 1140 5451 2432 900 18200 14300 38 038
1934 8277 990 5347 2686 900 18200 14300 33 033
1935 8277 1950 5528 1545 900 18200 14300 65 065
1936 8277 2460 5544 1019 900 18200 14300 82 082
1937 8277 2220 5797 1006 900 18200 14300 74 074
1938 8277 2613 6110 300 900 18200 14300 94 094
1939 8277 2640 5914 469 900 18200 14300 88 088
1940 8277 2460 5586 977 900 18200 14300 82 082
1941 8277 2318 6405 300 900 18200 14300 97 097
1942 8277 2473 6250 300 900 18200 14300 100 1
1943 8277 2534 6189 300 900 18200 14300 89 089
1944 8277 2639 6084 300 900 18200 14300 92 092
1945 8277 2700 5804 519 900 18200 14300 90 09
1946 8277 2640 5630 753 900 18200 14300 88 088
1947 8277 2250 5427 1346 900 18200 14300 75 075
1948 8277 2010 5236 1777 900 18200 14300 67 067
1949 7856 974 1950 2021 4500 900 18200 14300 65 065
1950 6760 694 2010 3336 4500 900 18200 14300 67 067
1951 5470 3000 2640 500 4500 900 17010 1190 00653787487 14300 88 088
1952 7546 2155 2880 4419 300 900 18200 14300 96 096
1953 8277 323 2700 5700 300 900 18200 14300 90 09
1954 8277 739 2490 5494 300 900 18200 14300 83 083
1955 8277 1222 2070 5431 300 900 18200 14300 69 069
1956 8234 2700 5462 904 900 18200 14300 90 09
1957 7521 2640 5411 1728 900 18200 14300 88 088
1958 7875 2700 5997 728 900 18200 14300 90 09
1959 8277 2640 5921 462 900 18200 14300 88 088
1960 8277 1890 5497 1636 900 18200 14300 63 063
1961 8277 1830 4178 3014 900 18200 14300 61 061
1962 8277 2340 4147 2536 900 18200 14300 78 078
1963 8277 2820 5537 666 900 18200 14300 94 094
1964 8277 2640 5327 1056 900 18200 14300 88 088
1965 8081 2460 5309 1450 900 18200 14300 82 082
1966 8220 2880 5639 561 900 18200 14300 96 096
1967 8277 2827 5896 300 900 18200 14300 96 096
1968 8277 2670 5675 678 900 18200 14300 89 089
1969 8277 2397 6326 300 900 18200 14300 93 093
1970 8277 2670 6036 317 900 18200 14300 89 089
1971 8277 2820 5733 470 900 18200 14300 94 094
1972 8277 2640 5443 940 900 18200 14300 88 088
1973 8277 2460 5747 816 900 18200 14300 82 082
1974 8277 2820 5785 418 900 18200 14300 94 094
1975 8277 2880 5742 401 900 18200 14300 96 096
1976 8277 2640 5515 868 900 18200 14300 88 088
1977 8277 990 5279 2754 900 18200 14300 33 033
1978 8277 2040 6052 931 900 18200 14300 68 068
1979 8277 2550 6171 302 900 18200 14300 85 085
1980 8277 2460 6188 375 900 18200 14300 82 082
1981 8277 2490 6145 388 900 18200 14300 83 083
1982 8277 2735 5988 300 900 18200 14300 94 094
1983 8277 1768 6955 300 900 18200 14300 100 1
1984 8277 2419 6304 300 900 18200 14300 100 1
1985 8277 2872 5851 300 900 18200 14300 96 096
1986 8277 2430 5703 890 900 18200 14300 81 081
1987 8277 2070 5321 1632 900 18200 14300 69 069
1988 8277 1290 5858 1875 900 18200 14300 43 043
1989 7990 1740 5641 1929 900 18200 14300 58 058
1990 6885 2365 1380 2170 4500 900 18200 14300 46 046
1991 6829 2388 870 2713 4500 900 18200 14300 29 029
1992 7997 2213 930 5860 300 900 18200 14300 31 031
1993 8277 1857 6866 300 900 18200 14300 76 076
Average 8122 211 2249 5436 1266 900 18184 769342 088
2241
7470
163592
1918 1918 1918 1918 1918 1918 1918
1919 1919 1919 1919 1919 1919 1919
1920 1920 1920 1920 1920 1920 1920
1921 1921 1921 1921 1921 1921 1921
1922 1922 1922 1922 1922 1922 1922
1923 1923 1923 1923 1923 1923 1923
1924 1924 1924 1924 1924 1924 1924
1925 1925 1925 1925 1925 1925 1925
1926 1926 1926 1926 1926 1926 1926
1927 1927 1927 1927 1927 1927 1927
1928 1928 1928 1928 1928 1928 1928
1929 1929 1929 1929 1929 1929 1929
1930 1930 1930 1930 1930 1930 1930
1931 1931 1931 1931 1931 1931 1931
1932 1932 1932 1932 1932 1932 1932
1933 1933 1933 1933 1933 1933 1933
1934 1934 1934 1934 1934 1934 1934
1935 1935 1935 1935 1935 1935 1935
1936 1936 1936 1936 1936 1936 1936
1937 1937 1937 1937 1937 1937 1937
1938 1938 1938 1938 1938 1938 1938
1939 1939 1939 1939 1939 1939 1939
1940 1940 1940 1940 1940 1940 1940
1941 1941 1941 1941 1941 1941 1941
1942 1942 1942 1942 1942 1942 1942
1943 1943 1943 1943 1943 1943 1943
1944 1944 1944 1944 1944 1944 1944
1945 1945 1945 1945 1945 1945 1945
1946 1946 1946 1946 1946 1946 1946
1947 1947 1947 1947 1947 1947 1947
1948 1948 1948 1948 1948 1948 1948
1949 1949 1949 1949 1949 1949 1949
1950 1950 1950 1950 1950 1950 1950
1951 1951 1951 1951 1951 1951 1951
1952 1952 1952 1952 1952 1952 1952
1953 1953 1953 1953 1953 1953 1953
1954 1954 1954 1954 1954 1954 1954
1955 1955 1955 1955 1955 1955 1955
1956 1956 1956 1956 1956 1956 1956
1957 1957 1957 1957 1957 1957 1957
1958 1958 1958 1958 1958 1958 1958
1959 1959 1959 1959 1959 1959 1959
1960 1960 1960 1960 1960 1960 1960
1961 1961 1961 1961 1961 1961 1961
1962 1962 1962 1962 1962 1962 1962
1963 1963 1963 1963 1963 1963 1963
1964 1964 1964 1964 1964 1964 1964
1965 1965 1965 1965 1965 1965 1965
1966 1966 1966 1966 1966 1966 1966
1967 1967 1967 1967 1967 1967 1967
1968 1968 1968 1968 1968 1968 1968
1969 1969 1969 1969 1969 1969 1969
1970 1970 1970 1970 1970 1970 1970
1971 1971 1971 1971 1971 1971 1971
1972 1972 1972 1972 1972 1972 1972
1973 1973 1973 1973 1973 1973 1973
1974 1974 1974 1974 1974 1974 1974
1975 1975 1975 1975 1975 1975 1975
1976 1976 1976 1976 1976 1976 1976
1977 1977 1977 1977 1977 1977 1977
1978 1978 1978 1978 1978 1978 1978
1979 1979 1979 1979 1979 1979 1979
1980 1980 1980 1980 1980 1980 1980
1981 1981 1981 1981 1981 1981 1981
1982 1982 1982 1982 1982 1982 1982
1983 1983 1983 1983 1983 1983 1983
1984 1984 1984 1984 1984 1984 1984
1985 1985 1985 1985 1985 1985 1985
1986 1986 1986 1986 1986 1986 1986
1987 1987 1987 1987 1987 1987 1987
1988 1988 1988 1988 1988 1988 1988
1989 1989 1989 1989 1989 1989 1989
1990 1990 1990 1990 1990 1990 1990
1991 1991 1991 1991 1991 1991 1991
1992 1992 1992 1992 1992 1992 1992
1993 1993 1993 1993 1993 1993 1993
Cachuma
Gibraltar
Groundwater
Recycled Water
State Water
Desalination
Detailed Simple
Maximum Capacity () Maximum Capacity (AF) 1980s Current
Lake Cachuma 32 8277 Cachuma 9700 8577
Gibraltar Reservoir 19 5000 Gibraltar 7400 6000
Mission Tunnel 4 1000 Groundwater 4500 4150
State Water Project 12 3000 Recycled Water 800
Groundwater 16 4150 State Water 3000
Recycled Water 3 800 Desalination 3125
Montecito Transfer 1 300 Totals 21600 25652
Desalination 12 3125
100 25652
Lake Cachuma
Gibraltar Reservoir
Mission Tunnel
State Water Project
Groundwater
Recycled Water
Montecito Transfer
Desalination
In our review of the FMP EIREIS we had a small discussion on how to characterize our water supplies in particular State Water In that discussion I commented that the average State Water delivery did not apply to how we did our water supply planning a
The supply target in this analysis is 18200 AFY with a goal of having no shortage greater than 1820 (10) in any year The critical year is 1951 This supply target was developed for us by our Community Development Department for the LTWSP and include
The Cityrsquos supply strategy as modeled is to
use all surface water supply first with a minimum (300 AFY) amount of local groundwater
use available State Water to get us to the supply target
if enough State Water is not available meet the supply target with local groundwater up to 4500 AFY
if that is not enough turn on the desal plant with a goal of having no shortage greater than 1820 AFY in the critical year
The modeling results presented in the first spreadsheet page (LTWSP2002) and the chart shows that our supplies meet the overall production target and satisfy the goal of having a shortage less than 10 in the critical year
In this analysis State Water is an important element in meeting the annual target and the critical year shortage goal The average delivery of State Water is meaningless in this analysis Also with the Cityrsquos approach our average delivery of State Wat
Another important consideration is that the estimates of State Water deliveries based on history result in historical critical periods for the Santa Ynez River and the State Water Project not coinciding I think it is acceptable for one to do this analys
I am not sure where this leaves us with respect to what we put in the FMP EISEIR for our individual water supplies For the City of Santa Barbara input I can give John Gray the bottom line of the spreadsheet with our averages for the 76 year period T
One value of the Cityrsquos approach is that it gives some meaning to the shortages that would happen (or at least are modeled to happen) if the surcharge is not included or other changes to Cachuma Project yield are suggested Our goal again is a shortage
LONG TERM WATER SUPPLY PROGRAM SUPPLY SCENARIO
As estimated by the Santa Ynez River Hydrology Model using 3 ft surcharge and BO fish releases
State Water critical period is moved to coincide with Cachuma critical period
Water Conservation and GW recharge is left out of this version
Includes ground water recovery and 10 safety margin values in acre feet production is 18200 AFY
Filename=LTWSP2002xls SWP
Year Cachuma Desal SWP GibJun GW Recycled Total Shortage
1918 8277 2357 6366 300 900 18200 14300 80
1919 8277 2400 5865 758 900 18200 14300 80
1920 8277 2400 5560 1063 900 18200 14300 80
1921 8277 2400 5483 1140 900 18200 14300 80
1922 8277 2792 5931 300 900 18200 14300 94 094
1923 8277 2894 5829 300 900 18200 14300 99 099
1924 8277 1500 5494 2029 900 18200 14300 50 05
1925 8277 1290 5294 2439 900 18200 14300 43 043
1926 8277 1740 5406 1877 900 18200 14300 58 058
1927 8277 2550 5643 830 900 18200 14300 85 085
1928 8277 2580 5548 895 900 18200 14300 86 086
1929 8277 1680 5425 1918 900 18200 14300 56 056
1930 8232 2250 5330 1488 900 18200 14300 75 057
1931 7306 2010 4673 3311 900 18200 14300 67 042
1932 7857 1950 4713 2780 900 18200 14300 65 044
1933 8277 2010 5451 1562 900 18200 14300 67 038
1934 8277 2640 5347 1036 900 18200 14300 88 033
1935 8277 1950 5528 1545 900 18200 14300 65 065
1936 8277 2460 5544 1019 900 18200 14300 82 082
1937 8277 2220 5797 1006 900 18200 14300 74 074
1938 8277 2613 6110 300 900 18200 14300 94 094
1939 8277 2640 5914 469 900 18200 14300 88 088
1940 8277 2460 5586 977 900 18200 14300 82 082
1941 8277 2318 6405 300 900 18200 14300 97 097
1942 8277 2473 6250 300 900 18200 14300 100 1
1943 8277 2534 6189 300 900 18200 14300 89 089
1944 8277 2639 6084 300 900 18200 14300 92 092
1945 8277 2700 5804 519 900 18200 14300 90 09
1946 8277 2640 5630 753 900 18200 14300 88 088
1947 8277 1710 5427 1886 900 18200 14300 57 075
1948 8277 1260 5236 2527 900 18200 14300 42 067
1949 7856 1604 1320 2021 4500 900 18200 -0 14300 44 065
1950 6760 1564 1140 3336 4500 900 18200 0 14300 38 067
1951 5470 3000 990 500 4500 900 15360 2840 01560380894 14300 33 088
1952 7546 2155 2880 4419 300 900 18200 14300 96 096
1953 8277 323 2700 5700 300 900 18200 14300 90 09
1954 8277 739 2490 5494 300 900 18200 14300 83 083
1955 8277 1222 2070 5431 300 900 18200 14300 69 069
1956 8234 2700 5462 904 900 18200 14300 90 09
1957 7521 2640 5411 1728 900 18200 14300 88 088
1958 7875 2700 5997 728 900 18200 14300 90 09
1959 8277 2640 5921 462 900 18200 14300 88 088
1960 8277 1890 5497 1636 900 18200 14300 63 063
1961 8277 1830 4178 3014 900 18200 14300 61 061
1962 8277 2340 4147 2536 900 18200 14300 78 078
1963 8277 2820 5537 666 900 18200 14300 94 094
1964 8277 2640 5327 1056 900 18200 14300 88 088
1965 8081 2460 5309 1450 900 18200 14300 82 082
1966 8220 2880 5639 561 900 18200 14300 96 096
1967 8277 2827 5896 300 900 18200 14300 96 096
1968 8277 2670 5675 678 900 18200 14300 89 089
1969 8277 2397 6326 300 900 18200 14300 93 093
1970 8277 2670 6036 317 900 18200 14300 89 089
1971 8277 2820 5733 470 900 18200 14300 94 094
1972 8277 2640 5443 940 900 18200 14300 88 088
1973 8277 2460 5747 816 900 18200 14300 82 082
1974 8277 2820 5785 418 900 18200 14300 94 094
1975 8277 2880 5742 401 900 18200 14300 96 096
1976 8277 2640 5515 868 900 18200 14300 88 088
1977 8277 990 5279 2754 900 18200 14300 33 033
1978 8277 2040 6052 931 900 18200 14300 68 068
1979 8277 2550 6171 302 900 18200 14300 85 085
1980 8277 2460 6188 375 900 18200 14300 82 082
1981 8277 2490 6145 388 900 18200 14300 83 083
1982 8277 2735 5988 300 900 18200 14300 94 094
1983 8277 1768 6955 300 900 18200 14300 100 1
1984 8277 2419 6304 300 900 18200 14300 100 1
1985 8277 2872 5851 300 900 18200 14300 96 096
1986 8277 2430 5703 890 900 18200 14300 81 081
1987 8277 2070 5321 1632 900 18200 14300 69 069
1988 8277 1290 5858 1875 900 18200 14300 43 043
1989 7990 1740 5641 1929 900 18200 14300 58 058
1990 6885 2365 1380 2170 4500 900 18200 14300 46 046
1991 6829 2388 870 2713 4500 900 18200 14300 29 029
1992 7997 2213 930 5860 300 900 18200 14300 31 031
1993 8277 1857 6866 300 900 18200 14300 76 076
Average 8122 231 2249 5436 1224 900 18163 769342 088
2241
7470
163592
LONG TERM WATER SUPPLY PROGRAM SUPPLY SCENARIO
As estimated by the Santa Ynez River Hydrology Model using 3 ft surcharge and BO fish releases
State Water deliveries are based on delivery estimates provided by CCWA in 2001
Water Conservation and GW recharge is left out of this version
Includes ground water recovery and 10 safety margin values in acre feet production is 18200 AFY
Filename=LTWSP2002xls SWP
Year Cachuma Desal SWP GibJun GW Recycled Total Shortage
1918 8277 2357 6366 300 900 18200 14300 80
1919 8277 2400 5865 758 900 18200 14300 80
1920 8277 2400 5560 1063 900 18200 14300 80
1921 8277 2400 5483 1140 900 18200 14300 80
1922 8277 2792 5931 300 900 18200 14300 94 094
1923 8277 2894 5829 300 900 18200 14300 99 099
1924 8277 1500 5494 2029 900 18200 14300 50 05
1925 8277 1290 5294 2439 900 18200 14300 43 043
1926 8277 1740 5406 1877 900 18200 14300 58 058
1927 8277 2550 5643 830 900 18200 14300 85 085
1928 8277 2580 5548 895 900 18200 14300 86 086
1929 8277 1680 5425 1918 900 18200 14300 56 056
1930 8232 1710 5330 2028 900 18200 14300 57 057
1931 7306 1260 4673 4061 900 18200 14300 42 042
1932 7857 1320 4713 3410 900 18200 14300 44 044
1933 8277 1140 5451 2432 900 18200 14300 38 038
1934 8277 990 5347 2686 900 18200 14300 33 033
1935 8277 1950 5528 1545 900 18200 14300 65 065
1936 8277 2460 5544 1019 900 18200 14300 82 082
1937 8277 2220 5797 1006 900 18200 14300 74 074
1938 8277 2613 6110 300 900 18200 14300 94 094
1939 8277 2640 5914 469 900 18200 14300 88 088
1940 8277 2460 5586 977 900 18200 14300 82 082
1941 8277 2318 6405 300 900 18200 14300 97 097
1942 8277 2473 6250 300 900 18200 14300 100 1
1943 8277 2534 6189 300 900 18200 14300 89 089
1944 8277 2639 6084 300 900 18200 14300 92 092
1945 8277 2700 5804 519 900 18200 14300 90 09
1946 8277 2640 5630 753 900 18200 14300 88 088
1947 8277 2250 5427 1346 900 18200 14300 75 075
1948 8277 2010 5236 1777 900 18200 14300 67 067
1949 7856 974 1950 2021 4500 900 18200 14300 65 065
1950 6760 694 2010 3336 4500 900 18200 14300 67 067
1951 5470 3000 2640 500 4500 900 17010 1190 00653787487 14300 88 088
1952 7546 2155 2880 4419 300 900 18200 14300 96 096
1953 8277 323 2700 5700 300 900 18200 14300 90 09
1954 8277 739 2490 5494 300 900 18200 14300 83 083
1955 8277 1222 2070 5431 300 900 18200 14300 69 069
1956 8234 2700 5462 904 900 18200 14300 90 09
1957 7521 2640 5411 1728 900 18200 14300 88 088
1958 7875 2700 5997 728 900 18200 14300 90 09
1959 8277 2640 5921 462 900 18200 14300 88 088
1960 8277 1890 5497 1636 900 18200 14300 63 063
1961 8277 1830 4178 3014 900 18200 14300 61 061
1962 8277 2340 4147 2536 900 18200 14300 78 078
1963 8277 2820 5537 666 900 18200 14300 94 094
1964 8277 2640 5327 1056 900 18200 14300 88 088
1965 8081 2460 5309 1450 900 18200 14300 82 082
1966 8220 2880 5639 561 900 18200 14300 96 096
1967 8277 2827 5896 300 900 18200 14300 96 096
1968 8277 2670 5675 678 900 18200 14300 89 089
1969 8277 2397 6326 300 900 18200 14300 93 093
1970 8277 2670 6036 317 900 18200 14300 89 089
1971 8277 2820 5733 470 900 18200 14300 94 094
1972 8277 2640 5443 940 900 18200 14300 88 088
1973 8277 2460 5747 816 900 18200 14300 82 082
1974 8277 2820 5785 418 900 18200 14300 94 094
1975 8277 2880 5742 401 900 18200 14300 96 096
1976 8277 2640 5515 868 900 18200 14300 88 088
1977 8277 990 5279 2754 900 18200 14300 33 033
1978 8277 2040 6052 931 900 18200 14300 68 068
1979 8277 2550 6171 302 900 18200 14300 85 085
1980 8277 2460 6188 375 900 18200 14300 82 082
1981 8277 2490 6145 388 900 18200 14300 83 083
1982 8277 2735 5988 300 900 18200 14300 94 094
1983 8277 1768 6955 300 900 18200 14300 100 1
1984 8277 2419 6304 300 900 18200 14300 100 1
1985 8277 2872 5851 300 900 18200 14300 96 096
1986 8277 2430 5703 890 900 18200 14300 81 081
1987 8277 2070 5321 1632 900 18200 14300 69 069
1988 8277 1290 5858 1875 900 18200 14300 43 043
1989 7990 1740 5641 1929 900 18200 14300 58 058
1990 6885 2365 1380 2170 4500 900 18200 14300 46 046
1991 6829 2388 870 2713 4500 900 18200 14300 29 029
1992 7997 2213 930 5860 300 900 18200 14300 31 031
1993 8277 1857 6866 300 900 18200 14300 76 076
Average 8122 211 2249 5436 1266 900 18184 769342 088
2241
7470
163592
1918 1918 1918 1918 1918 1918 1918
1919 1919 1919 1919 1919 1919 1919
1920 1920 1920 1920 1920 1920 1920
1921 1921 1921 1921 1921 1921 1921
1922 1922 1922 1922 1922 1922 1922
1923 1923 1923 1923 1923 1923 1923
1924 1924 1924 1924 1924 1924 1924
1925 1925 1925 1925 1925 1925 1925
1926 1926 1926 1926 1926 1926 1926
1927 1927 1927 1927 1927 1927 1927
1928 1928 1928 1928 1928 1928 1928
1929 1929 1929 1929 1929 1929 1929
1930 1930 1930 1930 1930 1930 1930
1931 1931 1931 1931 1931 1931 1931
1932 1932 1932 1932 1932 1932 1932
1933 1933 1933 1933 1933 1933 1933
1934 1934 1934 1934 1934 1934 1934
1935 1935 1935 1935 1935 1935 1935
1936 1936 1936 1936 1936 1936 1936
1937 1937 1937 1937 1937 1937 1937
1938 1938 1938 1938 1938 1938 1938
1939 1939 1939 1939 1939 1939 1939
1940 1940 1940 1940 1940 1940 1940
1941 1941 1941 1941 1941 1941 1941
1942 1942 1942 1942 1942 1942 1942
1943 1943 1943 1943 1943 1943 1943
1944 1944 1944 1944 1944 1944 1944
1945 1945 1945 1945 1945 1945 1945
1946 1946 1946 1946 1946 1946 1946
1947 1947 1947 1947 1947 1947 1947
1948 1948 1948 1948 1948 1948 1948
1949 1949 1949 1949 1949 1949 1949
1950 1950 1950 1950 1950 1950 1950
1951 1951 1951 1951 1951 1951 1951
1952 1952 1952 1952 1952 1952 1952
1953 1953 1953 1953 1953 1953 1953
1954 1954 1954 1954 1954 1954 1954
1955 1955 1955 1955 1955 1955 1955
1956 1956 1956 1956 1956 1956 1956
1957 1957 1957 1957 1957 1957 1957
1958 1958 1958 1958 1958 1958 1958
1959 1959 1959 1959 1959 1959 1959
1960 1960 1960 1960 1960 1960 1960
1961 1961 1961 1961 1961 1961 1961
1962 1962 1962 1962 1962 1962 1962
1963 1963 1963 1963 1963 1963 1963
1964 1964 1964 1964 1964 1964 1964
1965 1965 1965 1965 1965 1965 1965
1966 1966 1966 1966 1966 1966 1966
1967 1967 1967 1967 1967 1967 1967
1968 1968 1968 1968 1968 1968 1968
1969 1969 1969 1969 1969 1969 1969
1970 1970 1970 1970 1970 1970 1970
1971 1971 1971 1971 1971 1971 1971
1972 1972 1972 1972 1972 1972 1972
1973 1973 1973 1973 1973 1973 1973
1974 1974 1974 1974 1974 1974 1974
1975 1975 1975 1975 1975 1975 1975
1976 1976 1976 1976 1976 1976 1976
1977 1977 1977 1977 1977 1977 1977
1978 1978 1978 1978 1978 1978 1978
1979 1979 1979 1979 1979 1979 1979
1980 1980 1980 1980 1980 1980 1980
1981 1981 1981 1981 1981 1981 1981
1982 1982 1982 1982 1982 1982 1982
1983 1983 1983 1983 1983 1983 1983
1984 1984 1984 1984 1984 1984 1984
1985 1985 1985 1985 1985 1985 1985
1986 1986 1986 1986 1986 1986 1986
1987 1987 1987 1987 1987 1987 1987
1988 1988 1988 1988 1988 1988 1988
1989 1989 1989 1989 1989 1989 1989
1990 1990 1990 1990 1990 1990 1990
1991 1991 1991 1991 1991 1991 1991
1992 1992 1992 1992 1992 1992 1992
1993 1993 1993 1993 1993 1993 1993
Cachuma
Gibraltar
Groundwater
Page 2: PUBLIC WORKS DEPARTMENT WATER RESOURCES DIVISION …...mountain • Supply ranges from ... Water Supplies –State Water • A small, but useful part of our water supply • Both the

SantaBarbaraCAgovWater2

Overviewbull Current Supply Plan adopted in 1994bull Significant Demand Reductions Achievedbull Supply Projected to be Adequate through

Planning Periodbull Drought is Still the Main Challengebull Manage Water Supplies to Defer Use of

Desalination

SantaBarbaraCAgovWater3

Historical Backgroundbull Master Water Plan (1985)

- More Water Needed- Plan to Raise Gibraltar Dam

bull Five-Year Water PolicyAction Plan (1988)- Raising Gibraltar Faced

Challenges- Promote Conservation- Initiate Planning for Desalination- Long-Term Water Ordinance ndash

Development Restrictions

1980s Water Supply(AF of Capacity)

Gibraltar7400 AF

Cachuma9700 AF

Groundwater4500 AF

Chart3

Gibraltar7400 AF
Cachuma9700 AF
Groundwater4500 AF
1980s
1980s Water Supply(AF of Capacity)
9700
7400
4500

ltwspCht

ampA
Page ampP
Recycled
Cachuma
Gib etc
SWP
GW
Desal
Shortage
Water Supply (AF)
Figure 1 Long-Term Water Supply ProgramUpdated to include surchararge fish releases and 1990 drought
900
82773366
6366
23566634
300
900
82773366
5865
2400
7576634
900
82773366
5560
2400
10626634
900
82773366
5483
2400
11396634
900
82773366
5931
27916634
300
900
82773366
5829
28936634
300
900
82773366
5494
1500
20286634
900
82773366
5294
1290
24386634
900
82773366
5406
1740
18766634
900
82773366
5643
2550
8296634
900
82773366
5548
2580
8946634
900
82773366
5425
1680
19176634
900
8231514135
5330
1710
2028485865
900
7305562347
4673246
1260
4061191653
900
7856777469
471278
1320
3410442531
900
82773366
5451
1140
24316634
900
82773366
5347
990
26856634
900
82773366
5528
1950
15446634
900
82773366
5544
2460
10186634
900
82773366
5797
2220
10056634
900
82773366
6110
26126634
300
900
82773366
5914
2640
4686634
900
82773366
5586
2460
9766634
900
82773366
6405
23176634
300
900
82773366
6250
24726634
300
900
82773366
6189
25336634
300
900
82773366
6084
26386634
300
900
82773366
5804
2700
5186634
900
82773366
5630
2640
7526634
900
82773366
5427
2250
13456634
900
82773366
5236
2010
17766634
900
7855786017
2020508
1950
4500
974
900
6759906438
3335608
2010
4500
694485562
900
547040079
500
2640
4500
3000
1189893227
900
7545802755
441926
2880
300
2155
900
82773366
5700
2700
300
323
900
82773366
5494
2490
300
739
900
82773366
5431
2070
300
1222
900
8233699836
5462
2700
904300164
900
7520604423
5411
2640
1728395577
900
787483284
5997
2700
72816716
900
82773366
5921
2640
4616634
900
82773366
5497
1890
16356634
900
82773366
4178353
1830
30143104
900
82773366
4147065
2340
25355984
900
82773366
5537
2820
6656634
900
82773366
5327
2640
10556634
900
8080887468
5309
2460
1450112532
900
8219636025
5639
2880
561363975
900
82773366
5896
28266634
300
900
82773366
5675
2670
6776634
900
82773366
6326
23966634
300
900
82773366
6036
2670
3166634
900
82773366
5733
2820
4696634
900
82773366
5443
2640
9396634
900
82773366
5747
2460
8156634
900
82773366
5785
2820
4176634
900
82773366
5742
2880
4006634
900
82773366
5515
2640
8676634
900
82773366
5279
990
27536634
900
82773366
6052
2040
9306634
900
82773366
6171
2550
3016634
900
82773366
6188
2460
3746634
900
82773366
6145
2490
3876634
900
82773366
5988
27346634
300
900
82773366
6955
17676634
300
900
82773366
6304
24186634
300
900
82773366
5851
28716634
300
900
82773366
5703
2430
8896634
900
82773366
5321
2070
16316634
900
82773366
5858
1290
18746634
900
7990356312
5641
1740
1928643688
900
6885154509
2170335
1380
4500
2364510491
900
682933383
271296
870
4500
238770617
900
7997267505
5860
930
300
2213
900
82773366
6866
18566634
300

LTWSP2002

LTWSP2002 (coincide)

Text of Accompanying Email

Chart1

Maximum Capacity (AF)
8277
5000
1000
3000
4150
800
300
3125

Pie Chart Data

Pie Chart Data

Cachuma8277 AF
Gibraltar6000 AF
Groundwater4150 AF
State Water3000 AF
Recycled800 AF
Desalination3125 AF
Current
Current Water Supply(AF of Capacity)
Gibraltar7400 AF
Cachuma9700 AF
Groundwater4500 AF
1980s
1980s Water Supply(AF of Capacity)

SantaBarbaraCAgovWater4

Historical Backgroundbull Gibraltar Pass Through Agreement

(1989)- Gibraltar Enlargement Deferred- City to ldquoPass Throughrdquo Gibraltar

Water to Cachuma

bull 1987 ndash 1991 Drought - 50 Cutbacks Sought - State Water Bond Approval- Advisory Vote for Desal

Gibraltar Reservoir1989

SantaBarbaraCAgovWater5

Historical BackgroundLong-Term Water Supply Program (1994)

- Added Recycled WaterDesal amp State Water

- Critical Period Planning- Demand Estimate per

General Plan Update (1989)- Water Conservation savings

of 1500 AFY planned

LTWSP Water Supply(AF of Capacity)

Cachuma8277 AF

Gibraltar6000 AF

Groundwater4150 AF

State Water3000 AF

Recycled800 AF

Desalination3125 AF

Chart2

Cachuma8277 AF
Gibraltar6000 AF
Groundwater4150 AF
State Water3000 AF
Recycled800 AF
Desalination3125 AF
Current
LTWSP Water Supply(AF of Capacity)
8577
6000
4150
800
3000
3125

ltwspCht

ampA
Page ampP
Recycled
Cachuma
Gib etc
SWP
GW
Desal
Shortage
Water Supply (AF)
Figure 1 Long-Term Water Supply ProgramUpdated to include surchararge fish releases and 1990 drought
900
82773366
6366
23566634
300
900
82773366
5865
2400
7576634
900
82773366
5560
2400
10626634
900
82773366
5483
2400
11396634
900
82773366
5931
27916634
300
900
82773366
5829
28936634
300
900
82773366
5494
1500
20286634
900
82773366
5294
1290
24386634
900
82773366
5406
1740
18766634
900
82773366
5643
2550
8296634
900
82773366
5548
2580
8946634
900
82773366
5425
1680
19176634
900
8231514135
5330
1710
2028485865
900
7305562347
4673246
1260
4061191653
900
7856777469
471278
1320
3410442531
900
82773366
5451
1140
24316634
900
82773366
5347
990
26856634
900
82773366
5528
1950
15446634
900
82773366
5544
2460
10186634
900
82773366
5797
2220
10056634
900
82773366
6110
26126634
300
900
82773366
5914
2640
4686634
900
82773366
5586
2460
9766634
900
82773366
6405
23176634
300
900
82773366
6250
24726634
300
900
82773366
6189
25336634
300
900
82773366
6084
26386634
300
900
82773366
5804
2700
5186634
900
82773366
5630
2640
7526634
900
82773366
5427
2250
13456634
900
82773366
5236
2010
17766634
900
7855786017
2020508
1950
4500
974
900
6759906438
3335608
2010
4500
694485562
900
547040079
500
2640
4500
3000
1189893227
900
7545802755
441926
2880
300
2155
900
82773366
5700
2700
300
323
900
82773366
5494
2490
300
739
900
82773366
5431
2070
300
1222
900
8233699836
5462
2700
904300164
900
7520604423
5411
2640
1728395577
900
787483284
5997
2700
72816716
900
82773366
5921
2640
4616634
900
82773366
5497
1890
16356634
900
82773366
4178353
1830
30143104
900
82773366
4147065
2340
25355984
900
82773366
5537
2820
6656634
900
82773366
5327
2640
10556634
900
8080887468
5309
2460
1450112532
900
8219636025
5639
2880
561363975
900
82773366
5896
28266634
300
900
82773366
5675
2670
6776634
900
82773366
6326
23966634
300
900
82773366
6036
2670
3166634
900
82773366
5733
2820
4696634
900
82773366
5443
2640
9396634
900
82773366
5747
2460
8156634
900
82773366
5785
2820
4176634
900
82773366
5742
2880
4006634
900
82773366
5515
2640
8676634
900
82773366
5279
990
27536634
900
82773366
6052
2040
9306634
900
82773366
6171
2550
3016634
900
82773366
6188
2460
3746634
900
82773366
6145
2490
3876634
900
82773366
5988
27346634
300
900
82773366
6955
17676634
300
900
82773366
6304
24186634
300
900
82773366
5851
28716634
300
900
82773366
5703
2430
8896634
900
82773366
5321
2070
16316634
900
82773366
5858
1290
18746634
900
7990356312
5641
1740
1928643688
900
6885154509
2170335
1380
4500
2364510491
900
682933383
271296
870
4500
238770617
900
7997267505
5860
930
300
2213
900
82773366
6866
18566634
300

LTWSP2002

LTWSP2002 (coincide)

Text of Accompanying Email

Chart1

Maximum Capacity (AF)
8277
5000
1000
3000
4150
800
300
3125

Pie Chart Data

Pie Chart Data

Cachuma8277 AF
Gibraltar6000 AF
Groundwater4150 AF
State Water3000 AF
Recycled800 AF
Desalination3125 AF
Current
Current Water Supply(AF of Capacity)
Gibraltar7400 AF
Cachuma9700 AF
Groundwater4500 AF
1980s
1980s Water Supply(AF of Capacity)

SantaBarbaraCAgovWater6

City of Santa Barbara Water Demand(Acre Feet of Production by Calendar Year - Potable + Recycled)

0

2500

5000

7500

10000

12500

15000

17500

20000

1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010

Figure ___

Total System Production (AF)

12 Months Ending

13374

February 28 2011

Post-DroughtPre-Drought Drought

SantaBarbaraCAgovWater7

Water Supplies - Cachumabull Primary City

Water Supply

bull Multi-Year SourceA few dry years notan issue

bull 8277 AFYCurrent Entitlement

bull 7863 AFYProjected Entitlement (2030)

SantaBarbaraCAgovWater8

Water Supplies - Cachuma

0

50000

100000

150000

200000

250000

1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011Water Year

Historical StorageVolumes1987-1993 Period

Recent History of Lake Cachuma Storage Levels (AF)With 1987-1993 Period Shown for Comparison

Figure ____

SantaBarbaraCAgovWater9

Water Supplies - Gibraltarbull ldquoPass Throughrdquo

implementationin progress

bull Modelingunder review

bull Conservative planning assumptions used pending modeling results

bull Sedimentation management study planned

SantaBarbaraCAgovWater10

Water Supplies ndash Mission Tunnelbull Infiltration from

percolating groundwateron both sides of themountain

bull Supply ranges from500 to 2375 AFY

bull Average contribution1125 AFY

SantaBarbaraCAgovWater11

Water Supplies ndash State Waterbull A small but useful part of our water

supply

bull Both the water amp the pipeline have value

bull Cityrsquos maximum delivery amount - 3300 AFY

bull Deliveries subject to availability

SantaBarbaraCAgovWater12

Water Supplies ndash State Waterbull Projections based on DWR

modeling using long-term databull No Delta or storage

improvementsbull Environmental limits remain in

effectbull Climate change effects assumed

SantaBarbaraCAgovWater13

Water Supplies - Groundwater

SantaBarbaraCAgovWater14

Water Supplies ndash Groundwaterbull Pumping occurs in

Downtown amp OuterState Street areas

bull 1300 AFY safe yieldbull Average City pumping

assumed at ~1100 AFYbull Maximum of 4150 AFY during drought

Ortega Groundwater Treatment Plant

SantaBarbaraCAgovWater15

Water Supplies ndash Recycled WaterRecycled Water Distribution System

SantaBarbaraCAgovWater16

Water Supplies ndash Recycled Waterbull Displaces use of potable

water amp extends water supplybull Current connected

demand 800 AFYbull 300 AFY potential demand amp capacity identifiedbull Target demand 1100 AFYbull Blending an economical solution for reducing mineral

contentbull Policy issues related to blending

SantaBarbaraCAgovWater17

Water Supplies ndash Recycled Water

SantaBarbaraCAgovWater18

Recycled Water Blending bull Filterability (turbidity) - solution identifiedbull Mineral Content (salts) separate issue -

- Blending $180AF added operating cost- MFRO $341AF added cost + $46 million

capitalbull Proposed Policy ldquoContingency Plan to

eliminate blending with goal to be ready to implement plan based on economic regulatory or water supply requirementsrdquo

SantaBarbaraCAgovWater19

Water Supplies - Desalination

bull Reliable butexpensive source

bull $177 million toreactivate if needed

bull Important to keepfor use in case ofextended drought

bull Proposed Planning Goal Avoid use until year six of Critical Drought Period

SantaBarbaraCAgovWater20

Demand Managementbull Declining demand

- Best Management Practices (CUWCC)- Conservation Program- 20 x 2020- Plumbing Code amp Appliance Standards

bull Projected development - 800 to 900 AFY bull Water Conservation Technical Evaluation

SantaBarbaraCAgovWater21

Demand Projections

12000

12500

13000

13500

14000

14500

15000

2010 2012 2014 2016 2018 2020 2022 2024 2026 2028 2030

Plan SB Demand (No Plumbing Code or Conservation Effects)Plumbing Code Effects OnlyPlumbing Code + Program B20 X 2020 Trend Line20 X 2020 Regulatory Limit

Water System Demand Projections (AFY)

SantaBarbaraCAgovWater22

Water Supply Planning Target

Projected Demand 14000Safety Margin (10) + 1400

Water Supply Target = 15400 AFY

SantaBarbaraCAgovWater23

Water Supply Planning Conceptsbull Planning for 6-Year Critical Drought Periodbull Water Supply Modeling - Using Historical

Data with Current Water Supply Sources and Projected Demands

bull Ongoing Conservation vs Short Term Planned Demand Reductions for Extraordinary Situations

SantaBarbaraCAgovWater24

Water Supply Performance

SantaBarbaraCAgovWater25

SantaBarbaraCAgovWater26

SantaBarbaraCAgovWater27

SantaBarbaraCAgovWater28

Key Policy Issuesbull Achieve 20 x 2020 through BMPs Additional

Conservation Measures amp Recycled Waterbull Planning for a 6-Year Duration Critical Drought

- Manage supplies to avoid use of Desal until year six- Water Banking Purchases- Planned Demand Reductions 10 to 15- Recycled Water Expansion

bull Recycled Water Blending bull Sedimentation Management

SantaBarbaraCAgovWater29

Next Stepsbull Finalize updated Long-Term Water

Supply Plan- April 11 Final Comments from Water

Commission- Environmental Review

bull Prepare Urban Water Management Plan Update per State Requirements

bull Target Adoption Date for LTWSP amp UWMP - June 14 2011

SantaBarbaraCAgovWater30

Discussion amp Feedback

SantaBarbaraCAgovWater31

SantaBarbaraCAgovWater32

SantaBarbaraCAgovWater33

SantaBarbaraCAgovWater34

SantaBarbaraCAgovWater35

SantaBarbaraCAgovWater36

Upper Santa Ynez River Operations Agreement(ldquoPass Through Agreementrdquo)

SantaBarbaraCAgovWater37

Context of 1989 Agreementbull City water supply shortage identified ndash Gibraltar

vulnerable to siltation

bull Solution Raise Gibraltar Dam 20rsquo to 40rsquo

bull Challenges by downstream and environmental interests

bull Cachuma enlargement under consideration

SantaBarbaraCAgovWater38

Parties to the Agreement

bull City of Santa Barbarabull Carpinteria Valley Water Districtbull Goleta Water Districtbull Montecito Water Districtbull Santa Ynez River Water Conservation Districtbull SYRWCD Improvement District No 1

Consent and Acknowledgement by US Bureau of Reclamation

SantaBarbaraCAgovWater39

Pass Through Summer no inflow

Current volume (reflects on-going siltation since 1988)

1988 Reservoir volume

Note different siltation levels

SantaBarbaraCAgovWater40

Smaller Reservoir Spills Sooner1988 Reservoir volume

Current Reservoir volume

SantaBarbaraCAgovWater41

Difference is Stored in Cachuma as Gibraltar WaterBase Reservoir

Actual Reservoir

SantaBarbaraCAgovWater42

  • Long Term Water Supply Plan Adaptive Management
  • Overview
  • Historical Background
  • Historical Background
  • Historical Background
  • Slide Number 6
  • Water Supplies - Cachuma
  • Water Supplies - Cachuma
  • Water Supplies - Gibraltar
  • Water Supplies ndash Mission Tunnel
  • Water Supplies ndash State Water
  • Water Supplies ndash State Water
  • Water Supplies - Groundwater
  • Water Supplies ndash Groundwater
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Recycled Water Blending
  • Water Supplies - Desalination
  • Demand Management
  • Demand Projections
  • Water Supply Planning Target
  • Water Supply Planning Concepts
  • Water Supply Performance
  • Slide Number 25
  • Slide Number 26
  • Slide Number 27
  • Key Policy Issues
  • Next Steps
  • Discussion amp Feedback
  • Slide Number 31
  • Slide Number 32
  • Slide Number 33
  • Slide Number 34
  • Slide Number 35
  • Slide Number 36
  • Context of 1989 Agreement
  • Parties to the Agreement
  • Pass Through Summer no inflow
  • Smaller Reservoir Spills Sooner
  • Difference is Stored in Cachuma as Gibraltar Water
  • Slide Number 42
Detailed Simple
Maximum Capacity () Maximum Capacity (AF) 1980s Current
Lake Cachuma 32 8277 Cachuma 9700 8577
Gibraltar Reservoir 19 5000 Gibraltar 7400 6000
Mission Tunnel 4 1000 Groundwater 4500 4150
State Water Project 12 3000 Recycled Water 800
Groundwater 16 4150 State Water 3000
Recycled Water 3 800 Desalination 3125
Montecito Transfer 1 300 Totals 21600 25652
Desalination 12 3125
100 25652
Lake Cachuma
Gibraltar Reservoir
Mission Tunnel
State Water Project
Groundwater
Recycled Water
Montecito Transfer
Desalination
In our review of the FMP EIREIS we had a small discussion on how to characterize our water supplies in particular State Water In that discussion I commented that the average State Water delivery did not apply to how we did our water supply planning a
The supply target in this analysis is 18200 AFY with a goal of having no shortage greater than 1820 (10) in any year The critical year is 1951 This supply target was developed for us by our Community Development Department for the LTWSP and include
The Cityrsquos supply strategy as modeled is to
use all surface water supply first with a minimum (300 AFY) amount of local groundwater
use available State Water to get us to the supply target
if enough State Water is not available meet the supply target with local groundwater up to 4500 AFY
if that is not enough turn on the desal plant with a goal of having no shortage greater than 1820 AFY in the critical year
The modeling results presented in the first spreadsheet page (LTWSP2002) and the chart shows that our supplies meet the overall production target and satisfy the goal of having a shortage less than 10 in the critical year
In this analysis State Water is an important element in meeting the annual target and the critical year shortage goal The average delivery of State Water is meaningless in this analysis Also with the Cityrsquos approach our average delivery of State Wat
Another important consideration is that the estimates of State Water deliveries based on history result in historical critical periods for the Santa Ynez River and the State Water Project not coinciding I think it is acceptable for one to do this analys
I am not sure where this leaves us with respect to what we put in the FMP EISEIR for our individual water supplies For the City of Santa Barbara input I can give John Gray the bottom line of the spreadsheet with our averages for the 76 year period T
One value of the Cityrsquos approach is that it gives some meaning to the shortages that would happen (or at least are modeled to happen) if the surcharge is not included or other changes to Cachuma Project yield are suggested Our goal again is a shortage
LONG TERM WATER SUPPLY PROGRAM SUPPLY SCENARIO
As estimated by the Santa Ynez River Hydrology Model using 3 ft surcharge and BO fish releases
State Water critical period is moved to coincide with Cachuma critical period
Water Conservation and GW recharge is left out of this version
Includes ground water recovery and 10 safety margin values in acre feet production is 18200 AFY
Filename=LTWSP2002xls SWP
Year Cachuma Desal SWP GibJun GW Recycled Total Shortage
1918 8277 2357 6366 300 900 18200 14300 80
1919 8277 2400 5865 758 900 18200 14300 80
1920 8277 2400 5560 1063 900 18200 14300 80
1921 8277 2400 5483 1140 900 18200 14300 80
1922 8277 2792 5931 300 900 18200 14300 94 094
1923 8277 2894 5829 300 900 18200 14300 99 099
1924 8277 1500 5494 2029 900 18200 14300 50 05
1925 8277 1290 5294 2439 900 18200 14300 43 043
1926 8277 1740 5406 1877 900 18200 14300 58 058
1927 8277 2550 5643 830 900 18200 14300 85 085
1928 8277 2580 5548 895 900 18200 14300 86 086
1929 8277 1680 5425 1918 900 18200 14300 56 056
1930 8232 2250 5330 1488 900 18200 14300 75 057
1931 7306 2010 4673 3311 900 18200 14300 67 042
1932 7857 1950 4713 2780 900 18200 14300 65 044
1933 8277 2010 5451 1562 900 18200 14300 67 038
1934 8277 2640 5347 1036 900 18200 14300 88 033
1935 8277 1950 5528 1545 900 18200 14300 65 065
1936 8277 2460 5544 1019 900 18200 14300 82 082
1937 8277 2220 5797 1006 900 18200 14300 74 074
1938 8277 2613 6110 300 900 18200 14300 94 094
1939 8277 2640 5914 469 900 18200 14300 88 088
1940 8277 2460 5586 977 900 18200 14300 82 082
1941 8277 2318 6405 300 900 18200 14300 97 097
1942 8277 2473 6250 300 900 18200 14300 100 1
1943 8277 2534 6189 300 900 18200 14300 89 089
1944 8277 2639 6084 300 900 18200 14300 92 092
1945 8277 2700 5804 519 900 18200 14300 90 09
1946 8277 2640 5630 753 900 18200 14300 88 088
1947 8277 1710 5427 1886 900 18200 14300 57 075
1948 8277 1260 5236 2527 900 18200 14300 42 067
1949 7856 1604 1320 2021 4500 900 18200 -0 14300 44 065
1950 6760 1564 1140 3336 4500 900 18200 0 14300 38 067
1951 5470 3000 990 500 4500 900 15360 2840 01560380894 14300 33 088
1952 7546 2155 2880 4419 300 900 18200 14300 96 096
1953 8277 323 2700 5700 300 900 18200 14300 90 09
1954 8277 739 2490 5494 300 900 18200 14300 83 083
1955 8277 1222 2070 5431 300 900 18200 14300 69 069
1956 8234 2700 5462 904 900 18200 14300 90 09
1957 7521 2640 5411 1728 900 18200 14300 88 088
1958 7875 2700 5997 728 900 18200 14300 90 09
1959 8277 2640 5921 462 900 18200 14300 88 088
1960 8277 1890 5497 1636 900 18200 14300 63 063
1961 8277 1830 4178 3014 900 18200 14300 61 061
1962 8277 2340 4147 2536 900 18200 14300 78 078
1963 8277 2820 5537 666 900 18200 14300 94 094
1964 8277 2640 5327 1056 900 18200 14300 88 088
1965 8081 2460 5309 1450 900 18200 14300 82 082
1966 8220 2880 5639 561 900 18200 14300 96 096
1967 8277 2827 5896 300 900 18200 14300 96 096
1968 8277 2670 5675 678 900 18200 14300 89 089
1969 8277 2397 6326 300 900 18200 14300 93 093
1970 8277 2670 6036 317 900 18200 14300 89 089
1971 8277 2820 5733 470 900 18200 14300 94 094
1972 8277 2640 5443 940 900 18200 14300 88 088
1973 8277 2460 5747 816 900 18200 14300 82 082
1974 8277 2820 5785 418 900 18200 14300 94 094
1975 8277 2880 5742 401 900 18200 14300 96 096
1976 8277 2640 5515 868 900 18200 14300 88 088
1977 8277 990 5279 2754 900 18200 14300 33 033
1978 8277 2040 6052 931 900 18200 14300 68 068
1979 8277 2550 6171 302 900 18200 14300 85 085
1980 8277 2460 6188 375 900 18200 14300 82 082
1981 8277 2490 6145 388 900 18200 14300 83 083
1982 8277 2735 5988 300 900 18200 14300 94 094
1983 8277 1768 6955 300 900 18200 14300 100 1
1984 8277 2419 6304 300 900 18200 14300 100 1
1985 8277 2872 5851 300 900 18200 14300 96 096
1986 8277 2430 5703 890 900 18200 14300 81 081
1987 8277 2070 5321 1632 900 18200 14300 69 069
1988 8277 1290 5858 1875 900 18200 14300 43 043
1989 7990 1740 5641 1929 900 18200 14300 58 058
1990 6885 2365 1380 2170 4500 900 18200 14300 46 046
1991 6829 2388 870 2713 4500 900 18200 14300 29 029
1992 7997 2213 930 5860 300 900 18200 14300 31 031
1993 8277 1857 6866 300 900 18200 14300 76 076
Average 8122 231 2249 5436 1224 900 18163 769342 088
2241
7470
163592
LONG TERM WATER SUPPLY PROGRAM SUPPLY SCENARIO
As estimated by the Santa Ynez River Hydrology Model using 3 ft surcharge and BO fish releases
State Water deliveries are based on delivery estimates provided by CCWA in 2001
Water Conservation and GW recharge is left out of this version
Includes ground water recovery and 10 safety margin values in acre feet production is 18200 AFY
Filename=LTWSP2002xls SWP
Year Cachuma Desal SWP GibJun GW Recycled Total Shortage
1918 8277 2357 6366 300 900 18200 14300 80
1919 8277 2400 5865 758 900 18200 14300 80
1920 8277 2400 5560 1063 900 18200 14300 80
1921 8277 2400 5483 1140 900 18200 14300 80
1922 8277 2792 5931 300 900 18200 14300 94 094
1923 8277 2894 5829 300 900 18200 14300 99 099
1924 8277 1500 5494 2029 900 18200 14300 50 05
1925 8277 1290 5294 2439 900 18200 14300 43 043
1926 8277 1740 5406 1877 900 18200 14300 58 058
1927 8277 2550 5643 830 900 18200 14300 85 085
1928 8277 2580 5548 895 900 18200 14300 86 086
1929 8277 1680 5425 1918 900 18200 14300 56 056
1930 8232 1710 5330 2028 900 18200 14300 57 057
1931 7306 1260 4673 4061 900 18200 14300 42 042
1932 7857 1320 4713 3410 900 18200 14300 44 044
1933 8277 1140 5451 2432 900 18200 14300 38 038
1934 8277 990 5347 2686 900 18200 14300 33 033
1935 8277 1950 5528 1545 900 18200 14300 65 065
1936 8277 2460 5544 1019 900 18200 14300 82 082
1937 8277 2220 5797 1006 900 18200 14300 74 074
1938 8277 2613 6110 300 900 18200 14300 94 094
1939 8277 2640 5914 469 900 18200 14300 88 088
1940 8277 2460 5586 977 900 18200 14300 82 082
1941 8277 2318 6405 300 900 18200 14300 97 097
1942 8277 2473 6250 300 900 18200 14300 100 1
1943 8277 2534 6189 300 900 18200 14300 89 089
1944 8277 2639 6084 300 900 18200 14300 92 092
1945 8277 2700 5804 519 900 18200 14300 90 09
1946 8277 2640 5630 753 900 18200 14300 88 088
1947 8277 2250 5427 1346 900 18200 14300 75 075
1948 8277 2010 5236 1777 900 18200 14300 67 067
1949 7856 974 1950 2021 4500 900 18200 14300 65 065
1950 6760 694 2010 3336 4500 900 18200 14300 67 067
1951 5470 3000 2640 500 4500 900 17010 1190 00653787487 14300 88 088
1952 7546 2155 2880 4419 300 900 18200 14300 96 096
1953 8277 323 2700 5700 300 900 18200 14300 90 09
1954 8277 739 2490 5494 300 900 18200 14300 83 083
1955 8277 1222 2070 5431 300 900 18200 14300 69 069
1956 8234 2700 5462 904 900 18200 14300 90 09
1957 7521 2640 5411 1728 900 18200 14300 88 088
1958 7875 2700 5997 728 900 18200 14300 90 09
1959 8277 2640 5921 462 900 18200 14300 88 088
1960 8277 1890 5497 1636 900 18200 14300 63 063
1961 8277 1830 4178 3014 900 18200 14300 61 061
1962 8277 2340 4147 2536 900 18200 14300 78 078
1963 8277 2820 5537 666 900 18200 14300 94 094
1964 8277 2640 5327 1056 900 18200 14300 88 088
1965 8081 2460 5309 1450 900 18200 14300 82 082
1966 8220 2880 5639 561 900 18200 14300 96 096
1967 8277 2827 5896 300 900 18200 14300 96 096
1968 8277 2670 5675 678 900 18200 14300 89 089
1969 8277 2397 6326 300 900 18200 14300 93 093
1970 8277 2670 6036 317 900 18200 14300 89 089
1971 8277 2820 5733 470 900 18200 14300 94 094
1972 8277 2640 5443 940 900 18200 14300 88 088
1973 8277 2460 5747 816 900 18200 14300 82 082
1974 8277 2820 5785 418 900 18200 14300 94 094
1975 8277 2880 5742 401 900 18200 14300 96 096
1976 8277 2640 5515 868 900 18200 14300 88 088
1977 8277 990 5279 2754 900 18200 14300 33 033
1978 8277 2040 6052 931 900 18200 14300 68 068
1979 8277 2550 6171 302 900 18200 14300 85 085
1980 8277 2460 6188 375 900 18200 14300 82 082
1981 8277 2490 6145 388 900 18200 14300 83 083
1982 8277 2735 5988 300 900 18200 14300 94 094
1983 8277 1768 6955 300 900 18200 14300 100 1
1984 8277 2419 6304 300 900 18200 14300 100 1
1985 8277 2872 5851 300 900 18200 14300 96 096
1986 8277 2430 5703 890 900 18200 14300 81 081
1987 8277 2070 5321 1632 900 18200 14300 69 069
1988 8277 1290 5858 1875 900 18200 14300 43 043
1989 7990 1740 5641 1929 900 18200 14300 58 058
1990 6885 2365 1380 2170 4500 900 18200 14300 46 046
1991 6829 2388 870 2713 4500 900 18200 14300 29 029
1992 7997 2213 930 5860 300 900 18200 14300 31 031
1993 8277 1857 6866 300 900 18200 14300 76 076
Average 8122 211 2249 5436 1266 900 18184 769342 088
2241
7470
163592
1918 1918 1918 1918 1918 1918 1918
1919 1919 1919 1919 1919 1919 1919
1920 1920 1920 1920 1920 1920 1920
1921 1921 1921 1921 1921 1921 1921
1922 1922 1922 1922 1922 1922 1922
1923 1923 1923 1923 1923 1923 1923
1924 1924 1924 1924 1924 1924 1924
1925 1925 1925 1925 1925 1925 1925
1926 1926 1926 1926 1926 1926 1926
1927 1927 1927 1927 1927 1927 1927
1928 1928 1928 1928 1928 1928 1928
1929 1929 1929 1929 1929 1929 1929
1930 1930 1930 1930 1930 1930 1930
1931 1931 1931 1931 1931 1931 1931
1932 1932 1932 1932 1932 1932 1932
1933 1933 1933 1933 1933 1933 1933
1934 1934 1934 1934 1934 1934 1934
1935 1935 1935 1935 1935 1935 1935
1936 1936 1936 1936 1936 1936 1936
1937 1937 1937 1937 1937 1937 1937
1938 1938 1938 1938 1938 1938 1938
1939 1939 1939 1939 1939 1939 1939
1940 1940 1940 1940 1940 1940 1940
1941 1941 1941 1941 1941 1941 1941
1942 1942 1942 1942 1942 1942 1942
1943 1943 1943 1943 1943 1943 1943
1944 1944 1944 1944 1944 1944 1944
1945 1945 1945 1945 1945 1945 1945
1946 1946 1946 1946 1946 1946 1946
1947 1947 1947 1947 1947 1947 1947
1948 1948 1948 1948 1948 1948 1948
1949 1949 1949 1949 1949 1949 1949
1950 1950 1950 1950 1950 1950 1950
1951 1951 1951 1951 1951 1951 1951
1952 1952 1952 1952 1952 1952 1952
1953 1953 1953 1953 1953 1953 1953
1954 1954 1954 1954 1954 1954 1954
1955 1955 1955 1955 1955 1955 1955
1956 1956 1956 1956 1956 1956 1956
1957 1957 1957 1957 1957 1957 1957
1958 1958 1958 1958 1958 1958 1958
1959 1959 1959 1959 1959 1959 1959
1960 1960 1960 1960 1960 1960 1960
1961 1961 1961 1961 1961 1961 1961
1962 1962 1962 1962 1962 1962 1962
1963 1963 1963 1963 1963 1963 1963
1964 1964 1964 1964 1964 1964 1964
1965 1965 1965 1965 1965 1965 1965
1966 1966 1966 1966 1966 1966 1966
1967 1967 1967 1967 1967 1967 1967
1968 1968 1968 1968 1968 1968 1968
1969 1969 1969 1969 1969 1969 1969
1970 1970 1970 1970 1970 1970 1970
1971 1971 1971 1971 1971 1971 1971
1972 1972 1972 1972 1972 1972 1972
1973 1973 1973 1973 1973 1973 1973
1974 1974 1974 1974 1974 1974 1974
1975 1975 1975 1975 1975 1975 1975
1976 1976 1976 1976 1976 1976 1976
1977 1977 1977 1977 1977 1977 1977
1978 1978 1978 1978 1978 1978 1978
1979 1979 1979 1979 1979 1979 1979
1980 1980 1980 1980 1980 1980 1980
1981 1981 1981 1981 1981 1981 1981
1982 1982 1982 1982 1982 1982 1982
1983 1983 1983 1983 1983 1983 1983
1984 1984 1984 1984 1984 1984 1984
1985 1985 1985 1985 1985 1985 1985
1986 1986 1986 1986 1986 1986 1986
1987 1987 1987 1987 1987 1987 1987
1988 1988 1988 1988 1988 1988 1988
1989 1989 1989 1989 1989 1989 1989
1990 1990 1990 1990 1990 1990 1990
1991 1991 1991 1991 1991 1991 1991
1992 1992 1992 1992 1992 1992 1992
1993 1993 1993 1993 1993 1993 1993
Cachuma
Gibraltar
Groundwater
Recycled Water
State Water
Desalination
Detailed Simple
Maximum Capacity () Maximum Capacity (AF) 1980s Current
Lake Cachuma 32 8277 Cachuma 9700 8577
Gibraltar Reservoir 19 5000 Gibraltar 7400 6000
Mission Tunnel 4 1000 Groundwater 4500 4150
State Water Project 12 3000 Recycled Water 800
Groundwater 16 4150 State Water 3000
Recycled Water 3 800 Desalination 3125
Montecito Transfer 1 300 Totals 21600 25652
Desalination 12 3125
100 25652
Lake Cachuma
Gibraltar Reservoir
Mission Tunnel
State Water Project
Groundwater
Recycled Water
Montecito Transfer
Desalination
In our review of the FMP EIREIS we had a small discussion on how to characterize our water supplies in particular State Water In that discussion I commented that the average State Water delivery did not apply to how we did our water supply planning a
The supply target in this analysis is 18200 AFY with a goal of having no shortage greater than 1820 (10) in any year The critical year is 1951 This supply target was developed for us by our Community Development Department for the LTWSP and include
The Cityrsquos supply strategy as modeled is to
use all surface water supply first with a minimum (300 AFY) amount of local groundwater
use available State Water to get us to the supply target
if enough State Water is not available meet the supply target with local groundwater up to 4500 AFY
if that is not enough turn on the desal plant with a goal of having no shortage greater than 1820 AFY in the critical year
The modeling results presented in the first spreadsheet page (LTWSP2002) and the chart shows that our supplies meet the overall production target and satisfy the goal of having a shortage less than 10 in the critical year
In this analysis State Water is an important element in meeting the annual target and the critical year shortage goal The average delivery of State Water is meaningless in this analysis Also with the Cityrsquos approach our average delivery of State Wat
Another important consideration is that the estimates of State Water deliveries based on history result in historical critical periods for the Santa Ynez River and the State Water Project not coinciding I think it is acceptable for one to do this analys
I am not sure where this leaves us with respect to what we put in the FMP EISEIR for our individual water supplies For the City of Santa Barbara input I can give John Gray the bottom line of the spreadsheet with our averages for the 76 year period T
One value of the Cityrsquos approach is that it gives some meaning to the shortages that would happen (or at least are modeled to happen) if the surcharge is not included or other changes to Cachuma Project yield are suggested Our goal again is a shortage
LONG TERM WATER SUPPLY PROGRAM SUPPLY SCENARIO
As estimated by the Santa Ynez River Hydrology Model using 3 ft surcharge and BO fish releases
State Water critical period is moved to coincide with Cachuma critical period
Water Conservation and GW recharge is left out of this version
Includes ground water recovery and 10 safety margin values in acre feet production is 18200 AFY
Filename=LTWSP2002xls SWP
Year Cachuma Desal SWP GibJun GW Recycled Total Shortage
1918 8277 2357 6366 300 900 18200 14300 80
1919 8277 2400 5865 758 900 18200 14300 80
1920 8277 2400 5560 1063 900 18200 14300 80
1921 8277 2400 5483 1140 900 18200 14300 80
1922 8277 2792 5931 300 900 18200 14300 94 094
1923 8277 2894 5829 300 900 18200 14300 99 099
1924 8277 1500 5494 2029 900 18200 14300 50 05
1925 8277 1290 5294 2439 900 18200 14300 43 043
1926 8277 1740 5406 1877 900 18200 14300 58 058
1927 8277 2550 5643 830 900 18200 14300 85 085
1928 8277 2580 5548 895 900 18200 14300 86 086
1929 8277 1680 5425 1918 900 18200 14300 56 056
1930 8232 2250 5330 1488 900 18200 14300 75 057
1931 7306 2010 4673 3311 900 18200 14300 67 042
1932 7857 1950 4713 2780 900 18200 14300 65 044
1933 8277 2010 5451 1562 900 18200 14300 67 038
1934 8277 2640 5347 1036 900 18200 14300 88 033
1935 8277 1950 5528 1545 900 18200 14300 65 065
1936 8277 2460 5544 1019 900 18200 14300 82 082
1937 8277 2220 5797 1006 900 18200 14300 74 074
1938 8277 2613 6110 300 900 18200 14300 94 094
1939 8277 2640 5914 469 900 18200 14300 88 088
1940 8277 2460 5586 977 900 18200 14300 82 082
1941 8277 2318 6405 300 900 18200 14300 97 097
1942 8277 2473 6250 300 900 18200 14300 100 1
1943 8277 2534 6189 300 900 18200 14300 89 089
1944 8277 2639 6084 300 900 18200 14300 92 092
1945 8277 2700 5804 519 900 18200 14300 90 09
1946 8277 2640 5630 753 900 18200 14300 88 088
1947 8277 1710 5427 1886 900 18200 14300 57 075
1948 8277 1260 5236 2527 900 18200 14300 42 067
1949 7856 1604 1320 2021 4500 900 18200 -0 14300 44 065
1950 6760 1564 1140 3336 4500 900 18200 0 14300 38 067
1951 5470 3000 990 500 4500 900 15360 2840 01560380894 14300 33 088
1952 7546 2155 2880 4419 300 900 18200 14300 96 096
1953 8277 323 2700 5700 300 900 18200 14300 90 09
1954 8277 739 2490 5494 300 900 18200 14300 83 083
1955 8277 1222 2070 5431 300 900 18200 14300 69 069
1956 8234 2700 5462 904 900 18200 14300 90 09
1957 7521 2640 5411 1728 900 18200 14300 88 088
1958 7875 2700 5997 728 900 18200 14300 90 09
1959 8277 2640 5921 462 900 18200 14300 88 088
1960 8277 1890 5497 1636 900 18200 14300 63 063
1961 8277 1830 4178 3014 900 18200 14300 61 061
1962 8277 2340 4147 2536 900 18200 14300 78 078
1963 8277 2820 5537 666 900 18200 14300 94 094
1964 8277 2640 5327 1056 900 18200 14300 88 088
1965 8081 2460 5309 1450 900 18200 14300 82 082
1966 8220 2880 5639 561 900 18200 14300 96 096
1967 8277 2827 5896 300 900 18200 14300 96 096
1968 8277 2670 5675 678 900 18200 14300 89 089
1969 8277 2397 6326 300 900 18200 14300 93 093
1970 8277 2670 6036 317 900 18200 14300 89 089
1971 8277 2820 5733 470 900 18200 14300 94 094
1972 8277 2640 5443 940 900 18200 14300 88 088
1973 8277 2460 5747 816 900 18200 14300 82 082
1974 8277 2820 5785 418 900 18200 14300 94 094
1975 8277 2880 5742 401 900 18200 14300 96 096
1976 8277 2640 5515 868 900 18200 14300 88 088
1977 8277 990 5279 2754 900 18200 14300 33 033
1978 8277 2040 6052 931 900 18200 14300 68 068
1979 8277 2550 6171 302 900 18200 14300 85 085
1980 8277 2460 6188 375 900 18200 14300 82 082
1981 8277 2490 6145 388 900 18200 14300 83 083
1982 8277 2735 5988 300 900 18200 14300 94 094
1983 8277 1768 6955 300 900 18200 14300 100 1
1984 8277 2419 6304 300 900 18200 14300 100 1
1985 8277 2872 5851 300 900 18200 14300 96 096
1986 8277 2430 5703 890 900 18200 14300 81 081
1987 8277 2070 5321 1632 900 18200 14300 69 069
1988 8277 1290 5858 1875 900 18200 14300 43 043
1989 7990 1740 5641 1929 900 18200 14300 58 058
1990 6885 2365 1380 2170 4500 900 18200 14300 46 046
1991 6829 2388 870 2713 4500 900 18200 14300 29 029
1992 7997 2213 930 5860 300 900 18200 14300 31 031
1993 8277 1857 6866 300 900 18200 14300 76 076
Average 8122 231 2249 5436 1224 900 18163 769342 088
2241
7470
163592
LONG TERM WATER SUPPLY PROGRAM SUPPLY SCENARIO
As estimated by the Santa Ynez River Hydrology Model using 3 ft surcharge and BO fish releases
State Water deliveries are based on delivery estimates provided by CCWA in 2001
Water Conservation and GW recharge is left out of this version
Includes ground water recovery and 10 safety margin values in acre feet production is 18200 AFY
Filename=LTWSP2002xls SWP
Year Cachuma Desal SWP GibJun GW Recycled Total Shortage
1918 8277 2357 6366 300 900 18200 14300 80
1919 8277 2400 5865 758 900 18200 14300 80
1920 8277 2400 5560 1063 900 18200 14300 80
1921 8277 2400 5483 1140 900 18200 14300 80
1922 8277 2792 5931 300 900 18200 14300 94 094
1923 8277 2894 5829 300 900 18200 14300 99 099
1924 8277 1500 5494 2029 900 18200 14300 50 05
1925 8277 1290 5294 2439 900 18200 14300 43 043
1926 8277 1740 5406 1877 900 18200 14300 58 058
1927 8277 2550 5643 830 900 18200 14300 85 085
1928 8277 2580 5548 895 900 18200 14300 86 086
1929 8277 1680 5425 1918 900 18200 14300 56 056
1930 8232 1710 5330 2028 900 18200 14300 57 057
1931 7306 1260 4673 4061 900 18200 14300 42 042
1932 7857 1320 4713 3410 900 18200 14300 44 044
1933 8277 1140 5451 2432 900 18200 14300 38 038
1934 8277 990 5347 2686 900 18200 14300 33 033
1935 8277 1950 5528 1545 900 18200 14300 65 065
1936 8277 2460 5544 1019 900 18200 14300 82 082
1937 8277 2220 5797 1006 900 18200 14300 74 074
1938 8277 2613 6110 300 900 18200 14300 94 094
1939 8277 2640 5914 469 900 18200 14300 88 088
1940 8277 2460 5586 977 900 18200 14300 82 082
1941 8277 2318 6405 300 900 18200 14300 97 097
1942 8277 2473 6250 300 900 18200 14300 100 1
1943 8277 2534 6189 300 900 18200 14300 89 089
1944 8277 2639 6084 300 900 18200 14300 92 092
1945 8277 2700 5804 519 900 18200 14300 90 09
1946 8277 2640 5630 753 900 18200 14300 88 088
1947 8277 2250 5427 1346 900 18200 14300 75 075
1948 8277 2010 5236 1777 900 18200 14300 67 067
1949 7856 974 1950 2021 4500 900 18200 14300 65 065
1950 6760 694 2010 3336 4500 900 18200 14300 67 067
1951 5470 3000 2640 500 4500 900 17010 1190 00653787487 14300 88 088
1952 7546 2155 2880 4419 300 900 18200 14300 96 096
1953 8277 323 2700 5700 300 900 18200 14300 90 09
1954 8277 739 2490 5494 300 900 18200 14300 83 083
1955 8277 1222 2070 5431 300 900 18200 14300 69 069
1956 8234 2700 5462 904 900 18200 14300 90 09
1957 7521 2640 5411 1728 900 18200 14300 88 088
1958 7875 2700 5997 728 900 18200 14300 90 09
1959 8277 2640 5921 462 900 18200 14300 88 088
1960 8277 1890 5497 1636 900 18200 14300 63 063
1961 8277 1830 4178 3014 900 18200 14300 61 061
1962 8277 2340 4147 2536 900 18200 14300 78 078
1963 8277 2820 5537 666 900 18200 14300 94 094
1964 8277 2640 5327 1056 900 18200 14300 88 088
1965 8081 2460 5309 1450 900 18200 14300 82 082
1966 8220 2880 5639 561 900 18200 14300 96 096
1967 8277 2827 5896 300 900 18200 14300 96 096
1968 8277 2670 5675 678 900 18200 14300 89 089
1969 8277 2397 6326 300 900 18200 14300 93 093
1970 8277 2670 6036 317 900 18200 14300 89 089
1971 8277 2820 5733 470 900 18200 14300 94 094
1972 8277 2640 5443 940 900 18200 14300 88 088
1973 8277 2460 5747 816 900 18200 14300 82 082
1974 8277 2820 5785 418 900 18200 14300 94 094
1975 8277 2880 5742 401 900 18200 14300 96 096
1976 8277 2640 5515 868 900 18200 14300 88 088
1977 8277 990 5279 2754 900 18200 14300 33 033
1978 8277 2040 6052 931 900 18200 14300 68 068
1979 8277 2550 6171 302 900 18200 14300 85 085
1980 8277 2460 6188 375 900 18200 14300 82 082
1981 8277 2490 6145 388 900 18200 14300 83 083
1982 8277 2735 5988 300 900 18200 14300 94 094
1983 8277 1768 6955 300 900 18200 14300 100 1
1984 8277 2419 6304 300 900 18200 14300 100 1
1985 8277 2872 5851 300 900 18200 14300 96 096
1986 8277 2430 5703 890 900 18200 14300 81 081
1987 8277 2070 5321 1632 900 18200 14300 69 069
1988 8277 1290 5858 1875 900 18200 14300 43 043
1989 7990 1740 5641 1929 900 18200 14300 58 058
1990 6885 2365 1380 2170 4500 900 18200 14300 46 046
1991 6829 2388 870 2713 4500 900 18200 14300 29 029
1992 7997 2213 930 5860 300 900 18200 14300 31 031
1993 8277 1857 6866 300 900 18200 14300 76 076
Average 8122 211 2249 5436 1266 900 18184 769342 088
2241
7470
163592
1918 1918 1918 1918 1918 1918 1918
1919 1919 1919 1919 1919 1919 1919
1920 1920 1920 1920 1920 1920 1920
1921 1921 1921 1921 1921 1921 1921
1922 1922 1922 1922 1922 1922 1922
1923 1923 1923 1923 1923 1923 1923
1924 1924 1924 1924 1924 1924 1924
1925 1925 1925 1925 1925 1925 1925
1926 1926 1926 1926 1926 1926 1926
1927 1927 1927 1927 1927 1927 1927
1928 1928 1928 1928 1928 1928 1928
1929 1929 1929 1929 1929 1929 1929
1930 1930 1930 1930 1930 1930 1930
1931 1931 1931 1931 1931 1931 1931
1932 1932 1932 1932 1932 1932 1932
1933 1933 1933 1933 1933 1933 1933
1934 1934 1934 1934 1934 1934 1934
1935 1935 1935 1935 1935 1935 1935
1936 1936 1936 1936 1936 1936 1936
1937 1937 1937 1937 1937 1937 1937
1938 1938 1938 1938 1938 1938 1938
1939 1939 1939 1939 1939 1939 1939
1940 1940 1940 1940 1940 1940 1940
1941 1941 1941 1941 1941 1941 1941
1942 1942 1942 1942 1942 1942 1942
1943 1943 1943 1943 1943 1943 1943
1944 1944 1944 1944 1944 1944 1944
1945 1945 1945 1945 1945 1945 1945
1946 1946 1946 1946 1946 1946 1946
1947 1947 1947 1947 1947 1947 1947
1948 1948 1948 1948 1948 1948 1948
1949 1949 1949 1949 1949 1949 1949
1950 1950 1950 1950 1950 1950 1950
1951 1951 1951 1951 1951 1951 1951
1952 1952 1952 1952 1952 1952 1952
1953 1953 1953 1953 1953 1953 1953
1954 1954 1954 1954 1954 1954 1954
1955 1955 1955 1955 1955 1955 1955
1956 1956 1956 1956 1956 1956 1956
1957 1957 1957 1957 1957 1957 1957
1958 1958 1958 1958 1958 1958 1958
1959 1959 1959 1959 1959 1959 1959
1960 1960 1960 1960 1960 1960 1960
1961 1961 1961 1961 1961 1961 1961
1962 1962 1962 1962 1962 1962 1962
1963 1963 1963 1963 1963 1963 1963
1964 1964 1964 1964 1964 1964 1964
1965 1965 1965 1965 1965 1965 1965
1966 1966 1966 1966 1966 1966 1966
1967 1967 1967 1967 1967 1967 1967
1968 1968 1968 1968 1968 1968 1968
1969 1969 1969 1969 1969 1969 1969
1970 1970 1970 1970 1970 1970 1970
1971 1971 1971 1971 1971 1971 1971
1972 1972 1972 1972 1972 1972 1972
1973 1973 1973 1973 1973 1973 1973
1974 1974 1974 1974 1974 1974 1974
1975 1975 1975 1975 1975 1975 1975
1976 1976 1976 1976 1976 1976 1976
1977 1977 1977 1977 1977 1977 1977
1978 1978 1978 1978 1978 1978 1978
1979 1979 1979 1979 1979 1979 1979
1980 1980 1980 1980 1980 1980 1980
1981 1981 1981 1981 1981 1981 1981
1982 1982 1982 1982 1982 1982 1982
1983 1983 1983 1983 1983 1983 1983
1984 1984 1984 1984 1984 1984 1984
1985 1985 1985 1985 1985 1985 1985
1986 1986 1986 1986 1986 1986 1986
1987 1987 1987 1987 1987 1987 1987
1988 1988 1988 1988 1988 1988 1988
1989 1989 1989 1989 1989 1989 1989
1990 1990 1990 1990 1990 1990 1990
1991 1991 1991 1991 1991 1991 1991
1992 1992 1992 1992 1992 1992 1992
1993 1993 1993 1993 1993 1993 1993
Cachuma
Gibraltar
Groundwater
Page 3: PUBLIC WORKS DEPARTMENT WATER RESOURCES DIVISION …...mountain • Supply ranges from ... Water Supplies –State Water • A small, but useful part of our water supply • Both the

SantaBarbaraCAgovWater3

Historical Backgroundbull Master Water Plan (1985)

- More Water Needed- Plan to Raise Gibraltar Dam

bull Five-Year Water PolicyAction Plan (1988)- Raising Gibraltar Faced

Challenges- Promote Conservation- Initiate Planning for Desalination- Long-Term Water Ordinance ndash

Development Restrictions

1980s Water Supply(AF of Capacity)

Gibraltar7400 AF

Cachuma9700 AF

Groundwater4500 AF

Chart3

Gibraltar7400 AF
Cachuma9700 AF
Groundwater4500 AF
1980s
1980s Water Supply(AF of Capacity)
9700
7400
4500

ltwspCht

ampA
Page ampP
Recycled
Cachuma
Gib etc
SWP
GW
Desal
Shortage
Water Supply (AF)
Figure 1 Long-Term Water Supply ProgramUpdated to include surchararge fish releases and 1990 drought
900
82773366
6366
23566634
300
900
82773366
5865
2400
7576634
900
82773366
5560
2400
10626634
900
82773366
5483
2400
11396634
900
82773366
5931
27916634
300
900
82773366
5829
28936634
300
900
82773366
5494
1500
20286634
900
82773366
5294
1290
24386634
900
82773366
5406
1740
18766634
900
82773366
5643
2550
8296634
900
82773366
5548
2580
8946634
900
82773366
5425
1680
19176634
900
8231514135
5330
1710
2028485865
900
7305562347
4673246
1260
4061191653
900
7856777469
471278
1320
3410442531
900
82773366
5451
1140
24316634
900
82773366
5347
990
26856634
900
82773366
5528
1950
15446634
900
82773366
5544
2460
10186634
900
82773366
5797
2220
10056634
900
82773366
6110
26126634
300
900
82773366
5914
2640
4686634
900
82773366
5586
2460
9766634
900
82773366
6405
23176634
300
900
82773366
6250
24726634
300
900
82773366
6189
25336634
300
900
82773366
6084
26386634
300
900
82773366
5804
2700
5186634
900
82773366
5630
2640
7526634
900
82773366
5427
2250
13456634
900
82773366
5236
2010
17766634
900
7855786017
2020508
1950
4500
974
900
6759906438
3335608
2010
4500
694485562
900
547040079
500
2640
4500
3000
1189893227
900
7545802755
441926
2880
300
2155
900
82773366
5700
2700
300
323
900
82773366
5494
2490
300
739
900
82773366
5431
2070
300
1222
900
8233699836
5462
2700
904300164
900
7520604423
5411
2640
1728395577
900
787483284
5997
2700
72816716
900
82773366
5921
2640
4616634
900
82773366
5497
1890
16356634
900
82773366
4178353
1830
30143104
900
82773366
4147065
2340
25355984
900
82773366
5537
2820
6656634
900
82773366
5327
2640
10556634
900
8080887468
5309
2460
1450112532
900
8219636025
5639
2880
561363975
900
82773366
5896
28266634
300
900
82773366
5675
2670
6776634
900
82773366
6326
23966634
300
900
82773366
6036
2670
3166634
900
82773366
5733
2820
4696634
900
82773366
5443
2640
9396634
900
82773366
5747
2460
8156634
900
82773366
5785
2820
4176634
900
82773366
5742
2880
4006634
900
82773366
5515
2640
8676634
900
82773366
5279
990
27536634
900
82773366
6052
2040
9306634
900
82773366
6171
2550
3016634
900
82773366
6188
2460
3746634
900
82773366
6145
2490
3876634
900
82773366
5988
27346634
300
900
82773366
6955
17676634
300
900
82773366
6304
24186634
300
900
82773366
5851
28716634
300
900
82773366
5703
2430
8896634
900
82773366
5321
2070
16316634
900
82773366
5858
1290
18746634
900
7990356312
5641
1740
1928643688
900
6885154509
2170335
1380
4500
2364510491
900
682933383
271296
870
4500
238770617
900
7997267505
5860
930
300
2213
900
82773366
6866
18566634
300

LTWSP2002

LTWSP2002 (coincide)

Text of Accompanying Email

Chart1

Maximum Capacity (AF)
8277
5000
1000
3000
4150
800
300
3125

Pie Chart Data

Pie Chart Data

Cachuma8277 AF
Gibraltar6000 AF
Groundwater4150 AF
State Water3000 AF
Recycled800 AF
Desalination3125 AF
Current
Current Water Supply(AF of Capacity)
Gibraltar7400 AF
Cachuma9700 AF
Groundwater4500 AF
1980s
1980s Water Supply(AF of Capacity)

SantaBarbaraCAgovWater4

Historical Backgroundbull Gibraltar Pass Through Agreement

(1989)- Gibraltar Enlargement Deferred- City to ldquoPass Throughrdquo Gibraltar

Water to Cachuma

bull 1987 ndash 1991 Drought - 50 Cutbacks Sought - State Water Bond Approval- Advisory Vote for Desal

Gibraltar Reservoir1989

SantaBarbaraCAgovWater5

Historical BackgroundLong-Term Water Supply Program (1994)

- Added Recycled WaterDesal amp State Water

- Critical Period Planning- Demand Estimate per

General Plan Update (1989)- Water Conservation savings

of 1500 AFY planned

LTWSP Water Supply(AF of Capacity)

Cachuma8277 AF

Gibraltar6000 AF

Groundwater4150 AF

State Water3000 AF

Recycled800 AF

Desalination3125 AF

Chart2

Cachuma8277 AF
Gibraltar6000 AF
Groundwater4150 AF
State Water3000 AF
Recycled800 AF
Desalination3125 AF
Current
LTWSP Water Supply(AF of Capacity)
8577
6000
4150
800
3000
3125

ltwspCht

ampA
Page ampP
Recycled
Cachuma
Gib etc
SWP
GW
Desal
Shortage
Water Supply (AF)
Figure 1 Long-Term Water Supply ProgramUpdated to include surchararge fish releases and 1990 drought
900
82773366
6366
23566634
300
900
82773366
5865
2400
7576634
900
82773366
5560
2400
10626634
900
82773366
5483
2400
11396634
900
82773366
5931
27916634
300
900
82773366
5829
28936634
300
900
82773366
5494
1500
20286634
900
82773366
5294
1290
24386634
900
82773366
5406
1740
18766634
900
82773366
5643
2550
8296634
900
82773366
5548
2580
8946634
900
82773366
5425
1680
19176634
900
8231514135
5330
1710
2028485865
900
7305562347
4673246
1260
4061191653
900
7856777469
471278
1320
3410442531
900
82773366
5451
1140
24316634
900
82773366
5347
990
26856634
900
82773366
5528
1950
15446634
900
82773366
5544
2460
10186634
900
82773366
5797
2220
10056634
900
82773366
6110
26126634
300
900
82773366
5914
2640
4686634
900
82773366
5586
2460
9766634
900
82773366
6405
23176634
300
900
82773366
6250
24726634
300
900
82773366
6189
25336634
300
900
82773366
6084
26386634
300
900
82773366
5804
2700
5186634
900
82773366
5630
2640
7526634
900
82773366
5427
2250
13456634
900
82773366
5236
2010
17766634
900
7855786017
2020508
1950
4500
974
900
6759906438
3335608
2010
4500
694485562
900
547040079
500
2640
4500
3000
1189893227
900
7545802755
441926
2880
300
2155
900
82773366
5700
2700
300
323
900
82773366
5494
2490
300
739
900
82773366
5431
2070
300
1222
900
8233699836
5462
2700
904300164
900
7520604423
5411
2640
1728395577
900
787483284
5997
2700
72816716
900
82773366
5921
2640
4616634
900
82773366
5497
1890
16356634
900
82773366
4178353
1830
30143104
900
82773366
4147065
2340
25355984
900
82773366
5537
2820
6656634
900
82773366
5327
2640
10556634
900
8080887468
5309
2460
1450112532
900
8219636025
5639
2880
561363975
900
82773366
5896
28266634
300
900
82773366
5675
2670
6776634
900
82773366
6326
23966634
300
900
82773366
6036
2670
3166634
900
82773366
5733
2820
4696634
900
82773366
5443
2640
9396634
900
82773366
5747
2460
8156634
900
82773366
5785
2820
4176634
900
82773366
5742
2880
4006634
900
82773366
5515
2640
8676634
900
82773366
5279
990
27536634
900
82773366
6052
2040
9306634
900
82773366
6171
2550
3016634
900
82773366
6188
2460
3746634
900
82773366
6145
2490
3876634
900
82773366
5988
27346634
300
900
82773366
6955
17676634
300
900
82773366
6304
24186634
300
900
82773366
5851
28716634
300
900
82773366
5703
2430
8896634
900
82773366
5321
2070
16316634
900
82773366
5858
1290
18746634
900
7990356312
5641
1740
1928643688
900
6885154509
2170335
1380
4500
2364510491
900
682933383
271296
870
4500
238770617
900
7997267505
5860
930
300
2213
900
82773366
6866
18566634
300

LTWSP2002

LTWSP2002 (coincide)

Text of Accompanying Email

Chart1

Maximum Capacity (AF)
8277
5000
1000
3000
4150
800
300
3125

Pie Chart Data

Pie Chart Data

Cachuma8277 AF
Gibraltar6000 AF
Groundwater4150 AF
State Water3000 AF
Recycled800 AF
Desalination3125 AF
Current
Current Water Supply(AF of Capacity)
Gibraltar7400 AF
Cachuma9700 AF
Groundwater4500 AF
1980s
1980s Water Supply(AF of Capacity)

SantaBarbaraCAgovWater6

City of Santa Barbara Water Demand(Acre Feet of Production by Calendar Year - Potable + Recycled)

0

2500

5000

7500

10000

12500

15000

17500

20000

1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010

Figure ___

Total System Production (AF)

12 Months Ending

13374

February 28 2011

Post-DroughtPre-Drought Drought

SantaBarbaraCAgovWater7

Water Supplies - Cachumabull Primary City

Water Supply

bull Multi-Year SourceA few dry years notan issue

bull 8277 AFYCurrent Entitlement

bull 7863 AFYProjected Entitlement (2030)

SantaBarbaraCAgovWater8

Water Supplies - Cachuma

0

50000

100000

150000

200000

250000

1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011Water Year

Historical StorageVolumes1987-1993 Period

Recent History of Lake Cachuma Storage Levels (AF)With 1987-1993 Period Shown for Comparison

Figure ____

SantaBarbaraCAgovWater9

Water Supplies - Gibraltarbull ldquoPass Throughrdquo

implementationin progress

bull Modelingunder review

bull Conservative planning assumptions used pending modeling results

bull Sedimentation management study planned

SantaBarbaraCAgovWater10

Water Supplies ndash Mission Tunnelbull Infiltration from

percolating groundwateron both sides of themountain

bull Supply ranges from500 to 2375 AFY

bull Average contribution1125 AFY

SantaBarbaraCAgovWater11

Water Supplies ndash State Waterbull A small but useful part of our water

supply

bull Both the water amp the pipeline have value

bull Cityrsquos maximum delivery amount - 3300 AFY

bull Deliveries subject to availability

SantaBarbaraCAgovWater12

Water Supplies ndash State Waterbull Projections based on DWR

modeling using long-term databull No Delta or storage

improvementsbull Environmental limits remain in

effectbull Climate change effects assumed

SantaBarbaraCAgovWater13

Water Supplies - Groundwater

SantaBarbaraCAgovWater14

Water Supplies ndash Groundwaterbull Pumping occurs in

Downtown amp OuterState Street areas

bull 1300 AFY safe yieldbull Average City pumping

assumed at ~1100 AFYbull Maximum of 4150 AFY during drought

Ortega Groundwater Treatment Plant

SantaBarbaraCAgovWater15

Water Supplies ndash Recycled WaterRecycled Water Distribution System

SantaBarbaraCAgovWater16

Water Supplies ndash Recycled Waterbull Displaces use of potable

water amp extends water supplybull Current connected

demand 800 AFYbull 300 AFY potential demand amp capacity identifiedbull Target demand 1100 AFYbull Blending an economical solution for reducing mineral

contentbull Policy issues related to blending

SantaBarbaraCAgovWater17

Water Supplies ndash Recycled Water

SantaBarbaraCAgovWater18

Recycled Water Blending bull Filterability (turbidity) - solution identifiedbull Mineral Content (salts) separate issue -

- Blending $180AF added operating cost- MFRO $341AF added cost + $46 million

capitalbull Proposed Policy ldquoContingency Plan to

eliminate blending with goal to be ready to implement plan based on economic regulatory or water supply requirementsrdquo

SantaBarbaraCAgovWater19

Water Supplies - Desalination

bull Reliable butexpensive source

bull $177 million toreactivate if needed

bull Important to keepfor use in case ofextended drought

bull Proposed Planning Goal Avoid use until year six of Critical Drought Period

SantaBarbaraCAgovWater20

Demand Managementbull Declining demand

- Best Management Practices (CUWCC)- Conservation Program- 20 x 2020- Plumbing Code amp Appliance Standards

bull Projected development - 800 to 900 AFY bull Water Conservation Technical Evaluation

SantaBarbaraCAgovWater21

Demand Projections

12000

12500

13000

13500

14000

14500

15000

2010 2012 2014 2016 2018 2020 2022 2024 2026 2028 2030

Plan SB Demand (No Plumbing Code or Conservation Effects)Plumbing Code Effects OnlyPlumbing Code + Program B20 X 2020 Trend Line20 X 2020 Regulatory Limit

Water System Demand Projections (AFY)

SantaBarbaraCAgovWater22

Water Supply Planning Target

Projected Demand 14000Safety Margin (10) + 1400

Water Supply Target = 15400 AFY

SantaBarbaraCAgovWater23

Water Supply Planning Conceptsbull Planning for 6-Year Critical Drought Periodbull Water Supply Modeling - Using Historical

Data with Current Water Supply Sources and Projected Demands

bull Ongoing Conservation vs Short Term Planned Demand Reductions for Extraordinary Situations

SantaBarbaraCAgovWater24

Water Supply Performance

SantaBarbaraCAgovWater25

SantaBarbaraCAgovWater26

SantaBarbaraCAgovWater27

SantaBarbaraCAgovWater28

Key Policy Issuesbull Achieve 20 x 2020 through BMPs Additional

Conservation Measures amp Recycled Waterbull Planning for a 6-Year Duration Critical Drought

- Manage supplies to avoid use of Desal until year six- Water Banking Purchases- Planned Demand Reductions 10 to 15- Recycled Water Expansion

bull Recycled Water Blending bull Sedimentation Management

SantaBarbaraCAgovWater29

Next Stepsbull Finalize updated Long-Term Water

Supply Plan- April 11 Final Comments from Water

Commission- Environmental Review

bull Prepare Urban Water Management Plan Update per State Requirements

bull Target Adoption Date for LTWSP amp UWMP - June 14 2011

SantaBarbaraCAgovWater30

Discussion amp Feedback

SantaBarbaraCAgovWater31

SantaBarbaraCAgovWater32

SantaBarbaraCAgovWater33

SantaBarbaraCAgovWater34

SantaBarbaraCAgovWater35

SantaBarbaraCAgovWater36

Upper Santa Ynez River Operations Agreement(ldquoPass Through Agreementrdquo)

SantaBarbaraCAgovWater37

Context of 1989 Agreementbull City water supply shortage identified ndash Gibraltar

vulnerable to siltation

bull Solution Raise Gibraltar Dam 20rsquo to 40rsquo

bull Challenges by downstream and environmental interests

bull Cachuma enlargement under consideration

SantaBarbaraCAgovWater38

Parties to the Agreement

bull City of Santa Barbarabull Carpinteria Valley Water Districtbull Goleta Water Districtbull Montecito Water Districtbull Santa Ynez River Water Conservation Districtbull SYRWCD Improvement District No 1

Consent and Acknowledgement by US Bureau of Reclamation

SantaBarbaraCAgovWater39

Pass Through Summer no inflow

Current volume (reflects on-going siltation since 1988)

1988 Reservoir volume

Note different siltation levels

SantaBarbaraCAgovWater40

Smaller Reservoir Spills Sooner1988 Reservoir volume

Current Reservoir volume

SantaBarbaraCAgovWater41

Difference is Stored in Cachuma as Gibraltar WaterBase Reservoir

Actual Reservoir

SantaBarbaraCAgovWater42

  • Long Term Water Supply Plan Adaptive Management
  • Overview
  • Historical Background
  • Historical Background
  • Historical Background
  • Slide Number 6
  • Water Supplies - Cachuma
  • Water Supplies - Cachuma
  • Water Supplies - Gibraltar
  • Water Supplies ndash Mission Tunnel
  • Water Supplies ndash State Water
  • Water Supplies ndash State Water
  • Water Supplies - Groundwater
  • Water Supplies ndash Groundwater
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Recycled Water Blending
  • Water Supplies - Desalination
  • Demand Management
  • Demand Projections
  • Water Supply Planning Target
  • Water Supply Planning Concepts
  • Water Supply Performance
  • Slide Number 25
  • Slide Number 26
  • Slide Number 27
  • Key Policy Issues
  • Next Steps
  • Discussion amp Feedback
  • Slide Number 31
  • Slide Number 32
  • Slide Number 33
  • Slide Number 34
  • Slide Number 35
  • Slide Number 36
  • Context of 1989 Agreement
  • Parties to the Agreement
  • Pass Through Summer no inflow
  • Smaller Reservoir Spills Sooner
  • Difference is Stored in Cachuma as Gibraltar Water
  • Slide Number 42
Detailed Simple
Maximum Capacity () Maximum Capacity (AF) 1980s Current
Lake Cachuma 32 8277 Cachuma 9700 8577
Gibraltar Reservoir 19 5000 Gibraltar 7400 6000
Mission Tunnel 4 1000 Groundwater 4500 4150
State Water Project 12 3000 Recycled Water 800
Groundwater 16 4150 State Water 3000
Recycled Water 3 800 Desalination 3125
Montecito Transfer 1 300 Totals 21600 25652
Desalination 12 3125
100 25652
Lake Cachuma
Gibraltar Reservoir
Mission Tunnel
State Water Project
Groundwater
Recycled Water
Montecito Transfer
Desalination
In our review of the FMP EIREIS we had a small discussion on how to characterize our water supplies in particular State Water In that discussion I commented that the average State Water delivery did not apply to how we did our water supply planning a
The supply target in this analysis is 18200 AFY with a goal of having no shortage greater than 1820 (10) in any year The critical year is 1951 This supply target was developed for us by our Community Development Department for the LTWSP and include
The Cityrsquos supply strategy as modeled is to
use all surface water supply first with a minimum (300 AFY) amount of local groundwater
use available State Water to get us to the supply target
if enough State Water is not available meet the supply target with local groundwater up to 4500 AFY
if that is not enough turn on the desal plant with a goal of having no shortage greater than 1820 AFY in the critical year
The modeling results presented in the first spreadsheet page (LTWSP2002) and the chart shows that our supplies meet the overall production target and satisfy the goal of having a shortage less than 10 in the critical year
In this analysis State Water is an important element in meeting the annual target and the critical year shortage goal The average delivery of State Water is meaningless in this analysis Also with the Cityrsquos approach our average delivery of State Wat
Another important consideration is that the estimates of State Water deliveries based on history result in historical critical periods for the Santa Ynez River and the State Water Project not coinciding I think it is acceptable for one to do this analys
I am not sure where this leaves us with respect to what we put in the FMP EISEIR for our individual water supplies For the City of Santa Barbara input I can give John Gray the bottom line of the spreadsheet with our averages for the 76 year period T
One value of the Cityrsquos approach is that it gives some meaning to the shortages that would happen (or at least are modeled to happen) if the surcharge is not included or other changes to Cachuma Project yield are suggested Our goal again is a shortage
LONG TERM WATER SUPPLY PROGRAM SUPPLY SCENARIO
As estimated by the Santa Ynez River Hydrology Model using 3 ft surcharge and BO fish releases
State Water critical period is moved to coincide with Cachuma critical period
Water Conservation and GW recharge is left out of this version
Includes ground water recovery and 10 safety margin values in acre feet production is 18200 AFY
Filename=LTWSP2002xls SWP
Year Cachuma Desal SWP GibJun GW Recycled Total Shortage
1918 8277 2357 6366 300 900 18200 14300 80
1919 8277 2400 5865 758 900 18200 14300 80
1920 8277 2400 5560 1063 900 18200 14300 80
1921 8277 2400 5483 1140 900 18200 14300 80
1922 8277 2792 5931 300 900 18200 14300 94 094
1923 8277 2894 5829 300 900 18200 14300 99 099
1924 8277 1500 5494 2029 900 18200 14300 50 05
1925 8277 1290 5294 2439 900 18200 14300 43 043
1926 8277 1740 5406 1877 900 18200 14300 58 058
1927 8277 2550 5643 830 900 18200 14300 85 085
1928 8277 2580 5548 895 900 18200 14300 86 086
1929 8277 1680 5425 1918 900 18200 14300 56 056
1930 8232 2250 5330 1488 900 18200 14300 75 057
1931 7306 2010 4673 3311 900 18200 14300 67 042
1932 7857 1950 4713 2780 900 18200 14300 65 044
1933 8277 2010 5451 1562 900 18200 14300 67 038
1934 8277 2640 5347 1036 900 18200 14300 88 033
1935 8277 1950 5528 1545 900 18200 14300 65 065
1936 8277 2460 5544 1019 900 18200 14300 82 082
1937 8277 2220 5797 1006 900 18200 14300 74 074
1938 8277 2613 6110 300 900 18200 14300 94 094
1939 8277 2640 5914 469 900 18200 14300 88 088
1940 8277 2460 5586 977 900 18200 14300 82 082
1941 8277 2318 6405 300 900 18200 14300 97 097
1942 8277 2473 6250 300 900 18200 14300 100 1
1943 8277 2534 6189 300 900 18200 14300 89 089
1944 8277 2639 6084 300 900 18200 14300 92 092
1945 8277 2700 5804 519 900 18200 14300 90 09
1946 8277 2640 5630 753 900 18200 14300 88 088
1947 8277 1710 5427 1886 900 18200 14300 57 075
1948 8277 1260 5236 2527 900 18200 14300 42 067
1949 7856 1604 1320 2021 4500 900 18200 -0 14300 44 065
1950 6760 1564 1140 3336 4500 900 18200 0 14300 38 067
1951 5470 3000 990 500 4500 900 15360 2840 01560380894 14300 33 088
1952 7546 2155 2880 4419 300 900 18200 14300 96 096
1953 8277 323 2700 5700 300 900 18200 14300 90 09
1954 8277 739 2490 5494 300 900 18200 14300 83 083
1955 8277 1222 2070 5431 300 900 18200 14300 69 069
1956 8234 2700 5462 904 900 18200 14300 90 09
1957 7521 2640 5411 1728 900 18200 14300 88 088
1958 7875 2700 5997 728 900 18200 14300 90 09
1959 8277 2640 5921 462 900 18200 14300 88 088
1960 8277 1890 5497 1636 900 18200 14300 63 063
1961 8277 1830 4178 3014 900 18200 14300 61 061
1962 8277 2340 4147 2536 900 18200 14300 78 078
1963 8277 2820 5537 666 900 18200 14300 94 094
1964 8277 2640 5327 1056 900 18200 14300 88 088
1965 8081 2460 5309 1450 900 18200 14300 82 082
1966 8220 2880 5639 561 900 18200 14300 96 096
1967 8277 2827 5896 300 900 18200 14300 96 096
1968 8277 2670 5675 678 900 18200 14300 89 089
1969 8277 2397 6326 300 900 18200 14300 93 093
1970 8277 2670 6036 317 900 18200 14300 89 089
1971 8277 2820 5733 470 900 18200 14300 94 094
1972 8277 2640 5443 940 900 18200 14300 88 088
1973 8277 2460 5747 816 900 18200 14300 82 082
1974 8277 2820 5785 418 900 18200 14300 94 094
1975 8277 2880 5742 401 900 18200 14300 96 096
1976 8277 2640 5515 868 900 18200 14300 88 088
1977 8277 990 5279 2754 900 18200 14300 33 033
1978 8277 2040 6052 931 900 18200 14300 68 068
1979 8277 2550 6171 302 900 18200 14300 85 085
1980 8277 2460 6188 375 900 18200 14300 82 082
1981 8277 2490 6145 388 900 18200 14300 83 083
1982 8277 2735 5988 300 900 18200 14300 94 094
1983 8277 1768 6955 300 900 18200 14300 100 1
1984 8277 2419 6304 300 900 18200 14300 100 1
1985 8277 2872 5851 300 900 18200 14300 96 096
1986 8277 2430 5703 890 900 18200 14300 81 081
1987 8277 2070 5321 1632 900 18200 14300 69 069
1988 8277 1290 5858 1875 900 18200 14300 43 043
1989 7990 1740 5641 1929 900 18200 14300 58 058
1990 6885 2365 1380 2170 4500 900 18200 14300 46 046
1991 6829 2388 870 2713 4500 900 18200 14300 29 029
1992 7997 2213 930 5860 300 900 18200 14300 31 031
1993 8277 1857 6866 300 900 18200 14300 76 076
Average 8122 231 2249 5436 1224 900 18163 769342 088
2241
7470
163592
LONG TERM WATER SUPPLY PROGRAM SUPPLY SCENARIO
As estimated by the Santa Ynez River Hydrology Model using 3 ft surcharge and BO fish releases
State Water deliveries are based on delivery estimates provided by CCWA in 2001
Water Conservation and GW recharge is left out of this version
Includes ground water recovery and 10 safety margin values in acre feet production is 18200 AFY
Filename=LTWSP2002xls SWP
Year Cachuma Desal SWP GibJun GW Recycled Total Shortage
1918 8277 2357 6366 300 900 18200 14300 80
1919 8277 2400 5865 758 900 18200 14300 80
1920 8277 2400 5560 1063 900 18200 14300 80
1921 8277 2400 5483 1140 900 18200 14300 80
1922 8277 2792 5931 300 900 18200 14300 94 094
1923 8277 2894 5829 300 900 18200 14300 99 099
1924 8277 1500 5494 2029 900 18200 14300 50 05
1925 8277 1290 5294 2439 900 18200 14300 43 043
1926 8277 1740 5406 1877 900 18200 14300 58 058
1927 8277 2550 5643 830 900 18200 14300 85 085
1928 8277 2580 5548 895 900 18200 14300 86 086
1929 8277 1680 5425 1918 900 18200 14300 56 056
1930 8232 1710 5330 2028 900 18200 14300 57 057
1931 7306 1260 4673 4061 900 18200 14300 42 042
1932 7857 1320 4713 3410 900 18200 14300 44 044
1933 8277 1140 5451 2432 900 18200 14300 38 038
1934 8277 990 5347 2686 900 18200 14300 33 033
1935 8277 1950 5528 1545 900 18200 14300 65 065
1936 8277 2460 5544 1019 900 18200 14300 82 082
1937 8277 2220 5797 1006 900 18200 14300 74 074
1938 8277 2613 6110 300 900 18200 14300 94 094
1939 8277 2640 5914 469 900 18200 14300 88 088
1940 8277 2460 5586 977 900 18200 14300 82 082
1941 8277 2318 6405 300 900 18200 14300 97 097
1942 8277 2473 6250 300 900 18200 14300 100 1
1943 8277 2534 6189 300 900 18200 14300 89 089
1944 8277 2639 6084 300 900 18200 14300 92 092
1945 8277 2700 5804 519 900 18200 14300 90 09
1946 8277 2640 5630 753 900 18200 14300 88 088
1947 8277 2250 5427 1346 900 18200 14300 75 075
1948 8277 2010 5236 1777 900 18200 14300 67 067
1949 7856 974 1950 2021 4500 900 18200 14300 65 065
1950 6760 694 2010 3336 4500 900 18200 14300 67 067
1951 5470 3000 2640 500 4500 900 17010 1190 00653787487 14300 88 088
1952 7546 2155 2880 4419 300 900 18200 14300 96 096
1953 8277 323 2700 5700 300 900 18200 14300 90 09
1954 8277 739 2490 5494 300 900 18200 14300 83 083
1955 8277 1222 2070 5431 300 900 18200 14300 69 069
1956 8234 2700 5462 904 900 18200 14300 90 09
1957 7521 2640 5411 1728 900 18200 14300 88 088
1958 7875 2700 5997 728 900 18200 14300 90 09
1959 8277 2640 5921 462 900 18200 14300 88 088
1960 8277 1890 5497 1636 900 18200 14300 63 063
1961 8277 1830 4178 3014 900 18200 14300 61 061
1962 8277 2340 4147 2536 900 18200 14300 78 078
1963 8277 2820 5537 666 900 18200 14300 94 094
1964 8277 2640 5327 1056 900 18200 14300 88 088
1965 8081 2460 5309 1450 900 18200 14300 82 082
1966 8220 2880 5639 561 900 18200 14300 96 096
1967 8277 2827 5896 300 900 18200 14300 96 096
1968 8277 2670 5675 678 900 18200 14300 89 089
1969 8277 2397 6326 300 900 18200 14300 93 093
1970 8277 2670 6036 317 900 18200 14300 89 089
1971 8277 2820 5733 470 900 18200 14300 94 094
1972 8277 2640 5443 940 900 18200 14300 88 088
1973 8277 2460 5747 816 900 18200 14300 82 082
1974 8277 2820 5785 418 900 18200 14300 94 094
1975 8277 2880 5742 401 900 18200 14300 96 096
1976 8277 2640 5515 868 900 18200 14300 88 088
1977 8277 990 5279 2754 900 18200 14300 33 033
1978 8277 2040 6052 931 900 18200 14300 68 068
1979 8277 2550 6171 302 900 18200 14300 85 085
1980 8277 2460 6188 375 900 18200 14300 82 082
1981 8277 2490 6145 388 900 18200 14300 83 083
1982 8277 2735 5988 300 900 18200 14300 94 094
1983 8277 1768 6955 300 900 18200 14300 100 1
1984 8277 2419 6304 300 900 18200 14300 100 1
1985 8277 2872 5851 300 900 18200 14300 96 096
1986 8277 2430 5703 890 900 18200 14300 81 081
1987 8277 2070 5321 1632 900 18200 14300 69 069
1988 8277 1290 5858 1875 900 18200 14300 43 043
1989 7990 1740 5641 1929 900 18200 14300 58 058
1990 6885 2365 1380 2170 4500 900 18200 14300 46 046
1991 6829 2388 870 2713 4500 900 18200 14300 29 029
1992 7997 2213 930 5860 300 900 18200 14300 31 031
1993 8277 1857 6866 300 900 18200 14300 76 076
Average 8122 211 2249 5436 1266 900 18184 769342 088
2241
7470
163592
1918 1918 1918 1918 1918 1918 1918
1919 1919 1919 1919 1919 1919 1919
1920 1920 1920 1920 1920 1920 1920
1921 1921 1921 1921 1921 1921 1921
1922 1922 1922 1922 1922 1922 1922
1923 1923 1923 1923 1923 1923 1923
1924 1924 1924 1924 1924 1924 1924
1925 1925 1925 1925 1925 1925 1925
1926 1926 1926 1926 1926 1926 1926
1927 1927 1927 1927 1927 1927 1927
1928 1928 1928 1928 1928 1928 1928
1929 1929 1929 1929 1929 1929 1929
1930 1930 1930 1930 1930 1930 1930
1931 1931 1931 1931 1931 1931 1931
1932 1932 1932 1932 1932 1932 1932
1933 1933 1933 1933 1933 1933 1933
1934 1934 1934 1934 1934 1934 1934
1935 1935 1935 1935 1935 1935 1935
1936 1936 1936 1936 1936 1936 1936
1937 1937 1937 1937 1937 1937 1937
1938 1938 1938 1938 1938 1938 1938
1939 1939 1939 1939 1939 1939 1939
1940 1940 1940 1940 1940 1940 1940
1941 1941 1941 1941 1941 1941 1941
1942 1942 1942 1942 1942 1942 1942
1943 1943 1943 1943 1943 1943 1943
1944 1944 1944 1944 1944 1944 1944
1945 1945 1945 1945 1945 1945 1945
1946 1946 1946 1946 1946 1946 1946
1947 1947 1947 1947 1947 1947 1947
1948 1948 1948 1948 1948 1948 1948
1949 1949 1949 1949 1949 1949 1949
1950 1950 1950 1950 1950 1950 1950
1951 1951 1951 1951 1951 1951 1951
1952 1952 1952 1952 1952 1952 1952
1953 1953 1953 1953 1953 1953 1953
1954 1954 1954 1954 1954 1954 1954
1955 1955 1955 1955 1955 1955 1955
1956 1956 1956 1956 1956 1956 1956
1957 1957 1957 1957 1957 1957 1957
1958 1958 1958 1958 1958 1958 1958
1959 1959 1959 1959 1959 1959 1959
1960 1960 1960 1960 1960 1960 1960
1961 1961 1961 1961 1961 1961 1961
1962 1962 1962 1962 1962 1962 1962
1963 1963 1963 1963 1963 1963 1963
1964 1964 1964 1964 1964 1964 1964
1965 1965 1965 1965 1965 1965 1965
1966 1966 1966 1966 1966 1966 1966
1967 1967 1967 1967 1967 1967 1967
1968 1968 1968 1968 1968 1968 1968
1969 1969 1969 1969 1969 1969 1969
1970 1970 1970 1970 1970 1970 1970
1971 1971 1971 1971 1971 1971 1971
1972 1972 1972 1972 1972 1972 1972
1973 1973 1973 1973 1973 1973 1973
1974 1974 1974 1974 1974 1974 1974
1975 1975 1975 1975 1975 1975 1975
1976 1976 1976 1976 1976 1976 1976
1977 1977 1977 1977 1977 1977 1977
1978 1978 1978 1978 1978 1978 1978
1979 1979 1979 1979 1979 1979 1979
1980 1980 1980 1980 1980 1980 1980
1981 1981 1981 1981 1981 1981 1981
1982 1982 1982 1982 1982 1982 1982
1983 1983 1983 1983 1983 1983 1983
1984 1984 1984 1984 1984 1984 1984
1985 1985 1985 1985 1985 1985 1985
1986 1986 1986 1986 1986 1986 1986
1987 1987 1987 1987 1987 1987 1987
1988 1988 1988 1988 1988 1988 1988
1989 1989 1989 1989 1989 1989 1989
1990 1990 1990 1990 1990 1990 1990
1991 1991 1991 1991 1991 1991 1991
1992 1992 1992 1992 1992 1992 1992
1993 1993 1993 1993 1993 1993 1993
Cachuma
Gibraltar
Groundwater
Recycled Water
State Water
Desalination
Detailed Simple
Maximum Capacity () Maximum Capacity (AF) 1980s Current
Lake Cachuma 32 8277 Cachuma 9700 8577
Gibraltar Reservoir 19 5000 Gibraltar 7400 6000
Mission Tunnel 4 1000 Groundwater 4500 4150
State Water Project 12 3000 Recycled Water 800
Groundwater 16 4150 State Water 3000
Recycled Water 3 800 Desalination 3125
Montecito Transfer 1 300 Totals 21600 25652
Desalination 12 3125
100 25652
Lake Cachuma
Gibraltar Reservoir
Mission Tunnel
State Water Project
Groundwater
Recycled Water
Montecito Transfer
Desalination
In our review of the FMP EIREIS we had a small discussion on how to characterize our water supplies in particular State Water In that discussion I commented that the average State Water delivery did not apply to how we did our water supply planning a
The supply target in this analysis is 18200 AFY with a goal of having no shortage greater than 1820 (10) in any year The critical year is 1951 This supply target was developed for us by our Community Development Department for the LTWSP and include
The Cityrsquos supply strategy as modeled is to
use all surface water supply first with a minimum (300 AFY) amount of local groundwater
use available State Water to get us to the supply target
if enough State Water is not available meet the supply target with local groundwater up to 4500 AFY
if that is not enough turn on the desal plant with a goal of having no shortage greater than 1820 AFY in the critical year
The modeling results presented in the first spreadsheet page (LTWSP2002) and the chart shows that our supplies meet the overall production target and satisfy the goal of having a shortage less than 10 in the critical year
In this analysis State Water is an important element in meeting the annual target and the critical year shortage goal The average delivery of State Water is meaningless in this analysis Also with the Cityrsquos approach our average delivery of State Wat
Another important consideration is that the estimates of State Water deliveries based on history result in historical critical periods for the Santa Ynez River and the State Water Project not coinciding I think it is acceptable for one to do this analys
I am not sure where this leaves us with respect to what we put in the FMP EISEIR for our individual water supplies For the City of Santa Barbara input I can give John Gray the bottom line of the spreadsheet with our averages for the 76 year period T
One value of the Cityrsquos approach is that it gives some meaning to the shortages that would happen (or at least are modeled to happen) if the surcharge is not included or other changes to Cachuma Project yield are suggested Our goal again is a shortage
LONG TERM WATER SUPPLY PROGRAM SUPPLY SCENARIO
As estimated by the Santa Ynez River Hydrology Model using 3 ft surcharge and BO fish releases
State Water critical period is moved to coincide with Cachuma critical period
Water Conservation and GW recharge is left out of this version
Includes ground water recovery and 10 safety margin values in acre feet production is 18200 AFY
Filename=LTWSP2002xls SWP
Year Cachuma Desal SWP GibJun GW Recycled Total Shortage
1918 8277 2357 6366 300 900 18200 14300 80
1919 8277 2400 5865 758 900 18200 14300 80
1920 8277 2400 5560 1063 900 18200 14300 80
1921 8277 2400 5483 1140 900 18200 14300 80
1922 8277 2792 5931 300 900 18200 14300 94 094
1923 8277 2894 5829 300 900 18200 14300 99 099
1924 8277 1500 5494 2029 900 18200 14300 50 05
1925 8277 1290 5294 2439 900 18200 14300 43 043
1926 8277 1740 5406 1877 900 18200 14300 58 058
1927 8277 2550 5643 830 900 18200 14300 85 085
1928 8277 2580 5548 895 900 18200 14300 86 086
1929 8277 1680 5425 1918 900 18200 14300 56 056
1930 8232 2250 5330 1488 900 18200 14300 75 057
1931 7306 2010 4673 3311 900 18200 14300 67 042
1932 7857 1950 4713 2780 900 18200 14300 65 044
1933 8277 2010 5451 1562 900 18200 14300 67 038
1934 8277 2640 5347 1036 900 18200 14300 88 033
1935 8277 1950 5528 1545 900 18200 14300 65 065
1936 8277 2460 5544 1019 900 18200 14300 82 082
1937 8277 2220 5797 1006 900 18200 14300 74 074
1938 8277 2613 6110 300 900 18200 14300 94 094
1939 8277 2640 5914 469 900 18200 14300 88 088
1940 8277 2460 5586 977 900 18200 14300 82 082
1941 8277 2318 6405 300 900 18200 14300 97 097
1942 8277 2473 6250 300 900 18200 14300 100 1
1943 8277 2534 6189 300 900 18200 14300 89 089
1944 8277 2639 6084 300 900 18200 14300 92 092
1945 8277 2700 5804 519 900 18200 14300 90 09
1946 8277 2640 5630 753 900 18200 14300 88 088
1947 8277 1710 5427 1886 900 18200 14300 57 075
1948 8277 1260 5236 2527 900 18200 14300 42 067
1949 7856 1604 1320 2021 4500 900 18200 -0 14300 44 065
1950 6760 1564 1140 3336 4500 900 18200 0 14300 38 067
1951 5470 3000 990 500 4500 900 15360 2840 01560380894 14300 33 088
1952 7546 2155 2880 4419 300 900 18200 14300 96 096
1953 8277 323 2700 5700 300 900 18200 14300 90 09
1954 8277 739 2490 5494 300 900 18200 14300 83 083
1955 8277 1222 2070 5431 300 900 18200 14300 69 069
1956 8234 2700 5462 904 900 18200 14300 90 09
1957 7521 2640 5411 1728 900 18200 14300 88 088
1958 7875 2700 5997 728 900 18200 14300 90 09
1959 8277 2640 5921 462 900 18200 14300 88 088
1960 8277 1890 5497 1636 900 18200 14300 63 063
1961 8277 1830 4178 3014 900 18200 14300 61 061
1962 8277 2340 4147 2536 900 18200 14300 78 078
1963 8277 2820 5537 666 900 18200 14300 94 094
1964 8277 2640 5327 1056 900 18200 14300 88 088
1965 8081 2460 5309 1450 900 18200 14300 82 082
1966 8220 2880 5639 561 900 18200 14300 96 096
1967 8277 2827 5896 300 900 18200 14300 96 096
1968 8277 2670 5675 678 900 18200 14300 89 089
1969 8277 2397 6326 300 900 18200 14300 93 093
1970 8277 2670 6036 317 900 18200 14300 89 089
1971 8277 2820 5733 470 900 18200 14300 94 094
1972 8277 2640 5443 940 900 18200 14300 88 088
1973 8277 2460 5747 816 900 18200 14300 82 082
1974 8277 2820 5785 418 900 18200 14300 94 094
1975 8277 2880 5742 401 900 18200 14300 96 096
1976 8277 2640 5515 868 900 18200 14300 88 088
1977 8277 990 5279 2754 900 18200 14300 33 033
1978 8277 2040 6052 931 900 18200 14300 68 068
1979 8277 2550 6171 302 900 18200 14300 85 085
1980 8277 2460 6188 375 900 18200 14300 82 082
1981 8277 2490 6145 388 900 18200 14300 83 083
1982 8277 2735 5988 300 900 18200 14300 94 094
1983 8277 1768 6955 300 900 18200 14300 100 1
1984 8277 2419 6304 300 900 18200 14300 100 1
1985 8277 2872 5851 300 900 18200 14300 96 096
1986 8277 2430 5703 890 900 18200 14300 81 081
1987 8277 2070 5321 1632 900 18200 14300 69 069
1988 8277 1290 5858 1875 900 18200 14300 43 043
1989 7990 1740 5641 1929 900 18200 14300 58 058
1990 6885 2365 1380 2170 4500 900 18200 14300 46 046
1991 6829 2388 870 2713 4500 900 18200 14300 29 029
1992 7997 2213 930 5860 300 900 18200 14300 31 031
1993 8277 1857 6866 300 900 18200 14300 76 076
Average 8122 231 2249 5436 1224 900 18163 769342 088
2241
7470
163592
LONG TERM WATER SUPPLY PROGRAM SUPPLY SCENARIO
As estimated by the Santa Ynez River Hydrology Model using 3 ft surcharge and BO fish releases
State Water deliveries are based on delivery estimates provided by CCWA in 2001
Water Conservation and GW recharge is left out of this version
Includes ground water recovery and 10 safety margin values in acre feet production is 18200 AFY
Filename=LTWSP2002xls SWP
Year Cachuma Desal SWP GibJun GW Recycled Total Shortage
1918 8277 2357 6366 300 900 18200 14300 80
1919 8277 2400 5865 758 900 18200 14300 80
1920 8277 2400 5560 1063 900 18200 14300 80
1921 8277 2400 5483 1140 900 18200 14300 80
1922 8277 2792 5931 300 900 18200 14300 94 094
1923 8277 2894 5829 300 900 18200 14300 99 099
1924 8277 1500 5494 2029 900 18200 14300 50 05
1925 8277 1290 5294 2439 900 18200 14300 43 043
1926 8277 1740 5406 1877 900 18200 14300 58 058
1927 8277 2550 5643 830 900 18200 14300 85 085
1928 8277 2580 5548 895 900 18200 14300 86 086
1929 8277 1680 5425 1918 900 18200 14300 56 056
1930 8232 1710 5330 2028 900 18200 14300 57 057
1931 7306 1260 4673 4061 900 18200 14300 42 042
1932 7857 1320 4713 3410 900 18200 14300 44 044
1933 8277 1140 5451 2432 900 18200 14300 38 038
1934 8277 990 5347 2686 900 18200 14300 33 033
1935 8277 1950 5528 1545 900 18200 14300 65 065
1936 8277 2460 5544 1019 900 18200 14300 82 082
1937 8277 2220 5797 1006 900 18200 14300 74 074
1938 8277 2613 6110 300 900 18200 14300 94 094
1939 8277 2640 5914 469 900 18200 14300 88 088
1940 8277 2460 5586 977 900 18200 14300 82 082
1941 8277 2318 6405 300 900 18200 14300 97 097
1942 8277 2473 6250 300 900 18200 14300 100 1
1943 8277 2534 6189 300 900 18200 14300 89 089
1944 8277 2639 6084 300 900 18200 14300 92 092
1945 8277 2700 5804 519 900 18200 14300 90 09
1946 8277 2640 5630 753 900 18200 14300 88 088
1947 8277 2250 5427 1346 900 18200 14300 75 075
1948 8277 2010 5236 1777 900 18200 14300 67 067
1949 7856 974 1950 2021 4500 900 18200 14300 65 065
1950 6760 694 2010 3336 4500 900 18200 14300 67 067
1951 5470 3000 2640 500 4500 900 17010 1190 00653787487 14300 88 088
1952 7546 2155 2880 4419 300 900 18200 14300 96 096
1953 8277 323 2700 5700 300 900 18200 14300 90 09
1954 8277 739 2490 5494 300 900 18200 14300 83 083
1955 8277 1222 2070 5431 300 900 18200 14300 69 069
1956 8234 2700 5462 904 900 18200 14300 90 09
1957 7521 2640 5411 1728 900 18200 14300 88 088
1958 7875 2700 5997 728 900 18200 14300 90 09
1959 8277 2640 5921 462 900 18200 14300 88 088
1960 8277 1890 5497 1636 900 18200 14300 63 063
1961 8277 1830 4178 3014 900 18200 14300 61 061
1962 8277 2340 4147 2536 900 18200 14300 78 078
1963 8277 2820 5537 666 900 18200 14300 94 094
1964 8277 2640 5327 1056 900 18200 14300 88 088
1965 8081 2460 5309 1450 900 18200 14300 82 082
1966 8220 2880 5639 561 900 18200 14300 96 096
1967 8277 2827 5896 300 900 18200 14300 96 096
1968 8277 2670 5675 678 900 18200 14300 89 089
1969 8277 2397 6326 300 900 18200 14300 93 093
1970 8277 2670 6036 317 900 18200 14300 89 089
1971 8277 2820 5733 470 900 18200 14300 94 094
1972 8277 2640 5443 940 900 18200 14300 88 088
1973 8277 2460 5747 816 900 18200 14300 82 082
1974 8277 2820 5785 418 900 18200 14300 94 094
1975 8277 2880 5742 401 900 18200 14300 96 096
1976 8277 2640 5515 868 900 18200 14300 88 088
1977 8277 990 5279 2754 900 18200 14300 33 033
1978 8277 2040 6052 931 900 18200 14300 68 068
1979 8277 2550 6171 302 900 18200 14300 85 085
1980 8277 2460 6188 375 900 18200 14300 82 082
1981 8277 2490 6145 388 900 18200 14300 83 083
1982 8277 2735 5988 300 900 18200 14300 94 094
1983 8277 1768 6955 300 900 18200 14300 100 1
1984 8277 2419 6304 300 900 18200 14300 100 1
1985 8277 2872 5851 300 900 18200 14300 96 096
1986 8277 2430 5703 890 900 18200 14300 81 081
1987 8277 2070 5321 1632 900 18200 14300 69 069
1988 8277 1290 5858 1875 900 18200 14300 43 043
1989 7990 1740 5641 1929 900 18200 14300 58 058
1990 6885 2365 1380 2170 4500 900 18200 14300 46 046
1991 6829 2388 870 2713 4500 900 18200 14300 29 029
1992 7997 2213 930 5860 300 900 18200 14300 31 031
1993 8277 1857 6866 300 900 18200 14300 76 076
Average 8122 211 2249 5436 1266 900 18184 769342 088
2241
7470
163592
1918 1918 1918 1918 1918 1918 1918
1919 1919 1919 1919 1919 1919 1919
1920 1920 1920 1920 1920 1920 1920
1921 1921 1921 1921 1921 1921 1921
1922 1922 1922 1922 1922 1922 1922
1923 1923 1923 1923 1923 1923 1923
1924 1924 1924 1924 1924 1924 1924
1925 1925 1925 1925 1925 1925 1925
1926 1926 1926 1926 1926 1926 1926
1927 1927 1927 1927 1927 1927 1927
1928 1928 1928 1928 1928 1928 1928
1929 1929 1929 1929 1929 1929 1929
1930 1930 1930 1930 1930 1930 1930
1931 1931 1931 1931 1931 1931 1931
1932 1932 1932 1932 1932 1932 1932
1933 1933 1933 1933 1933 1933 1933
1934 1934 1934 1934 1934 1934 1934
1935 1935 1935 1935 1935 1935 1935
1936 1936 1936 1936 1936 1936 1936
1937 1937 1937 1937 1937 1937 1937
1938 1938 1938 1938 1938 1938 1938
1939 1939 1939 1939 1939 1939 1939
1940 1940 1940 1940 1940 1940 1940
1941 1941 1941 1941 1941 1941 1941
1942 1942 1942 1942 1942 1942 1942
1943 1943 1943 1943 1943 1943 1943
1944 1944 1944 1944 1944 1944 1944
1945 1945 1945 1945 1945 1945 1945
1946 1946 1946 1946 1946 1946 1946
1947 1947 1947 1947 1947 1947 1947
1948 1948 1948 1948 1948 1948 1948
1949 1949 1949 1949 1949 1949 1949
1950 1950 1950 1950 1950 1950 1950
1951 1951 1951 1951 1951 1951 1951
1952 1952 1952 1952 1952 1952 1952
1953 1953 1953 1953 1953 1953 1953
1954 1954 1954 1954 1954 1954 1954
1955 1955 1955 1955 1955 1955 1955
1956 1956 1956 1956 1956 1956 1956
1957 1957 1957 1957 1957 1957 1957
1958 1958 1958 1958 1958 1958 1958
1959 1959 1959 1959 1959 1959 1959
1960 1960 1960 1960 1960 1960 1960
1961 1961 1961 1961 1961 1961 1961
1962 1962 1962 1962 1962 1962 1962
1963 1963 1963 1963 1963 1963 1963
1964 1964 1964 1964 1964 1964 1964
1965 1965 1965 1965 1965 1965 1965
1966 1966 1966 1966 1966 1966 1966
1967 1967 1967 1967 1967 1967 1967
1968 1968 1968 1968 1968 1968 1968
1969 1969 1969 1969 1969 1969 1969
1970 1970 1970 1970 1970 1970 1970
1971 1971 1971 1971 1971 1971 1971
1972 1972 1972 1972 1972 1972 1972
1973 1973 1973 1973 1973 1973 1973
1974 1974 1974 1974 1974 1974 1974
1975 1975 1975 1975 1975 1975 1975
1976 1976 1976 1976 1976 1976 1976
1977 1977 1977 1977 1977 1977 1977
1978 1978 1978 1978 1978 1978 1978
1979 1979 1979 1979 1979 1979 1979
1980 1980 1980 1980 1980 1980 1980
1981 1981 1981 1981 1981 1981 1981
1982 1982 1982 1982 1982 1982 1982
1983 1983 1983 1983 1983 1983 1983
1984 1984 1984 1984 1984 1984 1984
1985 1985 1985 1985 1985 1985 1985
1986 1986 1986 1986 1986 1986 1986
1987 1987 1987 1987 1987 1987 1987
1988 1988 1988 1988 1988 1988 1988
1989 1989 1989 1989 1989 1989 1989
1990 1990 1990 1990 1990 1990 1990
1991 1991 1991 1991 1991 1991 1991
1992 1992 1992 1992 1992 1992 1992
1993 1993 1993 1993 1993 1993 1993
Cachuma
Gibraltar
Groundwater
Page 4: PUBLIC WORKS DEPARTMENT WATER RESOURCES DIVISION …...mountain • Supply ranges from ... Water Supplies –State Water • A small, but useful part of our water supply • Both the

Chart3

Gibraltar7400 AF
Cachuma9700 AF
Groundwater4500 AF
1980s
1980s Water Supply(AF of Capacity)
9700
7400
4500

ltwspCht

ampA
Page ampP
Recycled
Cachuma
Gib etc
SWP
GW
Desal
Shortage
Water Supply (AF)
Figure 1 Long-Term Water Supply ProgramUpdated to include surchararge fish releases and 1990 drought
900
82773366
6366
23566634
300
900
82773366
5865
2400
7576634
900
82773366
5560
2400
10626634
900
82773366
5483
2400
11396634
900
82773366
5931
27916634
300
900
82773366
5829
28936634
300
900
82773366
5494
1500
20286634
900
82773366
5294
1290
24386634
900
82773366
5406
1740
18766634
900
82773366
5643
2550
8296634
900
82773366
5548
2580
8946634
900
82773366
5425
1680
19176634
900
8231514135
5330
1710
2028485865
900
7305562347
4673246
1260
4061191653
900
7856777469
471278
1320
3410442531
900
82773366
5451
1140
24316634
900
82773366
5347
990
26856634
900
82773366
5528
1950
15446634
900
82773366
5544
2460
10186634
900
82773366
5797
2220
10056634
900
82773366
6110
26126634
300
900
82773366
5914
2640
4686634
900
82773366
5586
2460
9766634
900
82773366
6405
23176634
300
900
82773366
6250
24726634
300
900
82773366
6189
25336634
300
900
82773366
6084
26386634
300
900
82773366
5804
2700
5186634
900
82773366
5630
2640
7526634
900
82773366
5427
2250
13456634
900
82773366
5236
2010
17766634
900
7855786017
2020508
1950
4500
974
900
6759906438
3335608
2010
4500
694485562
900
547040079
500
2640
4500
3000
1189893227
900
7545802755
441926
2880
300
2155
900
82773366
5700
2700
300
323
900
82773366
5494
2490
300
739
900
82773366
5431
2070
300
1222
900
8233699836
5462
2700
904300164
900
7520604423
5411
2640
1728395577
900
787483284
5997
2700
72816716
900
82773366
5921
2640
4616634
900
82773366
5497
1890
16356634
900
82773366
4178353
1830
30143104
900
82773366
4147065
2340
25355984
900
82773366
5537
2820
6656634
900
82773366
5327
2640
10556634
900
8080887468
5309
2460
1450112532
900
8219636025
5639
2880
561363975
900
82773366
5896
28266634
300
900
82773366
5675
2670
6776634
900
82773366
6326
23966634
300
900
82773366
6036
2670
3166634
900
82773366
5733
2820
4696634
900
82773366
5443
2640
9396634
900
82773366
5747
2460
8156634
900
82773366
5785
2820
4176634
900
82773366
5742
2880
4006634
900
82773366
5515
2640
8676634
900
82773366
5279
990
27536634
900
82773366
6052
2040
9306634
900
82773366
6171
2550
3016634
900
82773366
6188
2460
3746634
900
82773366
6145
2490
3876634
900
82773366
5988
27346634
300
900
82773366
6955
17676634
300
900
82773366
6304
24186634
300
900
82773366
5851
28716634
300
900
82773366
5703
2430
8896634
900
82773366
5321
2070
16316634
900
82773366
5858
1290
18746634
900
7990356312
5641
1740
1928643688
900
6885154509
2170335
1380
4500
2364510491
900
682933383
271296
870
4500
238770617
900
7997267505
5860
930
300
2213
900
82773366
6866
18566634
300

LTWSP2002

LTWSP2002 (coincide)

Text of Accompanying Email

Chart1

Maximum Capacity (AF)
8277
5000
1000
3000
4150
800
300
3125

Pie Chart Data

Pie Chart Data

Cachuma8277 AF
Gibraltar6000 AF
Groundwater4150 AF
State Water3000 AF
Recycled800 AF
Desalination3125 AF
Current
Current Water Supply(AF of Capacity)
Gibraltar7400 AF
Cachuma9700 AF
Groundwater4500 AF
1980s
1980s Water Supply(AF of Capacity)

SantaBarbaraCAgovWater4

Historical Backgroundbull Gibraltar Pass Through Agreement

(1989)- Gibraltar Enlargement Deferred- City to ldquoPass Throughrdquo Gibraltar

Water to Cachuma

bull 1987 ndash 1991 Drought - 50 Cutbacks Sought - State Water Bond Approval- Advisory Vote for Desal

Gibraltar Reservoir1989

SantaBarbaraCAgovWater5

Historical BackgroundLong-Term Water Supply Program (1994)

- Added Recycled WaterDesal amp State Water

- Critical Period Planning- Demand Estimate per

General Plan Update (1989)- Water Conservation savings

of 1500 AFY planned

LTWSP Water Supply(AF of Capacity)

Cachuma8277 AF

Gibraltar6000 AF

Groundwater4150 AF

State Water3000 AF

Recycled800 AF

Desalination3125 AF

Chart2

Cachuma8277 AF
Gibraltar6000 AF
Groundwater4150 AF
State Water3000 AF
Recycled800 AF
Desalination3125 AF
Current
LTWSP Water Supply(AF of Capacity)
8577
6000
4150
800
3000
3125

ltwspCht

ampA
Page ampP
Recycled
Cachuma
Gib etc
SWP
GW
Desal
Shortage
Water Supply (AF)
Figure 1 Long-Term Water Supply ProgramUpdated to include surchararge fish releases and 1990 drought
900
82773366
6366
23566634
300
900
82773366
5865
2400
7576634
900
82773366
5560
2400
10626634
900
82773366
5483
2400
11396634
900
82773366
5931
27916634
300
900
82773366
5829
28936634
300
900
82773366
5494
1500
20286634
900
82773366
5294
1290
24386634
900
82773366
5406
1740
18766634
900
82773366
5643
2550
8296634
900
82773366
5548
2580
8946634
900
82773366
5425
1680
19176634
900
8231514135
5330
1710
2028485865
900
7305562347
4673246
1260
4061191653
900
7856777469
471278
1320
3410442531
900
82773366
5451
1140
24316634
900
82773366
5347
990
26856634
900
82773366
5528
1950
15446634
900
82773366
5544
2460
10186634
900
82773366
5797
2220
10056634
900
82773366
6110
26126634
300
900
82773366
5914
2640
4686634
900
82773366
5586
2460
9766634
900
82773366
6405
23176634
300
900
82773366
6250
24726634
300
900
82773366
6189
25336634
300
900
82773366
6084
26386634
300
900
82773366
5804
2700
5186634
900
82773366
5630
2640
7526634
900
82773366
5427
2250
13456634
900
82773366
5236
2010
17766634
900
7855786017
2020508
1950
4500
974
900
6759906438
3335608
2010
4500
694485562
900
547040079
500
2640
4500
3000
1189893227
900
7545802755
441926
2880
300
2155
900
82773366
5700
2700
300
323
900
82773366
5494
2490
300
739
900
82773366
5431
2070
300
1222
900
8233699836
5462
2700
904300164
900
7520604423
5411
2640
1728395577
900
787483284
5997
2700
72816716
900
82773366
5921
2640
4616634
900
82773366
5497
1890
16356634
900
82773366
4178353
1830
30143104
900
82773366
4147065
2340
25355984
900
82773366
5537
2820
6656634
900
82773366
5327
2640
10556634
900
8080887468
5309
2460
1450112532
900
8219636025
5639
2880
561363975
900
82773366
5896
28266634
300
900
82773366
5675
2670
6776634
900
82773366
6326
23966634
300
900
82773366
6036
2670
3166634
900
82773366
5733
2820
4696634
900
82773366
5443
2640
9396634
900
82773366
5747
2460
8156634
900
82773366
5785
2820
4176634
900
82773366
5742
2880
4006634
900
82773366
5515
2640
8676634
900
82773366
5279
990
27536634
900
82773366
6052
2040
9306634
900
82773366
6171
2550
3016634
900
82773366
6188
2460
3746634
900
82773366
6145
2490
3876634
900
82773366
5988
27346634
300
900
82773366
6955
17676634
300
900
82773366
6304
24186634
300
900
82773366
5851
28716634
300
900
82773366
5703
2430
8896634
900
82773366
5321
2070
16316634
900
82773366
5858
1290
18746634
900
7990356312
5641
1740
1928643688
900
6885154509
2170335
1380
4500
2364510491
900
682933383
271296
870
4500
238770617
900
7997267505
5860
930
300
2213
900
82773366
6866
18566634
300

LTWSP2002

LTWSP2002 (coincide)

Text of Accompanying Email

Chart1

Maximum Capacity (AF)
8277
5000
1000
3000
4150
800
300
3125

Pie Chart Data

Pie Chart Data

Cachuma8277 AF
Gibraltar6000 AF
Groundwater4150 AF
State Water3000 AF
Recycled800 AF
Desalination3125 AF
Current
Current Water Supply(AF of Capacity)
Gibraltar7400 AF
Cachuma9700 AF
Groundwater4500 AF
1980s
1980s Water Supply(AF of Capacity)

SantaBarbaraCAgovWater6

City of Santa Barbara Water Demand(Acre Feet of Production by Calendar Year - Potable + Recycled)

0

2500

5000

7500

10000

12500

15000

17500

20000

1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010

Figure ___

Total System Production (AF)

12 Months Ending

13374

February 28 2011

Post-DroughtPre-Drought Drought

SantaBarbaraCAgovWater7

Water Supplies - Cachumabull Primary City

Water Supply

bull Multi-Year SourceA few dry years notan issue

bull 8277 AFYCurrent Entitlement

bull 7863 AFYProjected Entitlement (2030)

SantaBarbaraCAgovWater8

Water Supplies - Cachuma

0

50000

100000

150000

200000

250000

1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011Water Year

Historical StorageVolumes1987-1993 Period

Recent History of Lake Cachuma Storage Levels (AF)With 1987-1993 Period Shown for Comparison

Figure ____

SantaBarbaraCAgovWater9

Water Supplies - Gibraltarbull ldquoPass Throughrdquo

implementationin progress

bull Modelingunder review

bull Conservative planning assumptions used pending modeling results

bull Sedimentation management study planned

SantaBarbaraCAgovWater10

Water Supplies ndash Mission Tunnelbull Infiltration from

percolating groundwateron both sides of themountain

bull Supply ranges from500 to 2375 AFY

bull Average contribution1125 AFY

SantaBarbaraCAgovWater11

Water Supplies ndash State Waterbull A small but useful part of our water

supply

bull Both the water amp the pipeline have value

bull Cityrsquos maximum delivery amount - 3300 AFY

bull Deliveries subject to availability

SantaBarbaraCAgovWater12

Water Supplies ndash State Waterbull Projections based on DWR

modeling using long-term databull No Delta or storage

improvementsbull Environmental limits remain in

effectbull Climate change effects assumed

SantaBarbaraCAgovWater13

Water Supplies - Groundwater

SantaBarbaraCAgovWater14

Water Supplies ndash Groundwaterbull Pumping occurs in

Downtown amp OuterState Street areas

bull 1300 AFY safe yieldbull Average City pumping

assumed at ~1100 AFYbull Maximum of 4150 AFY during drought

Ortega Groundwater Treatment Plant

SantaBarbaraCAgovWater15

Water Supplies ndash Recycled WaterRecycled Water Distribution System

SantaBarbaraCAgovWater16

Water Supplies ndash Recycled Waterbull Displaces use of potable

water amp extends water supplybull Current connected

demand 800 AFYbull 300 AFY potential demand amp capacity identifiedbull Target demand 1100 AFYbull Blending an economical solution for reducing mineral

contentbull Policy issues related to blending

SantaBarbaraCAgovWater17

Water Supplies ndash Recycled Water

SantaBarbaraCAgovWater18

Recycled Water Blending bull Filterability (turbidity) - solution identifiedbull Mineral Content (salts) separate issue -

- Blending $180AF added operating cost- MFRO $341AF added cost + $46 million

capitalbull Proposed Policy ldquoContingency Plan to

eliminate blending with goal to be ready to implement plan based on economic regulatory or water supply requirementsrdquo

SantaBarbaraCAgovWater19

Water Supplies - Desalination

bull Reliable butexpensive source

bull $177 million toreactivate if needed

bull Important to keepfor use in case ofextended drought

bull Proposed Planning Goal Avoid use until year six of Critical Drought Period

SantaBarbaraCAgovWater20

Demand Managementbull Declining demand

- Best Management Practices (CUWCC)- Conservation Program- 20 x 2020- Plumbing Code amp Appliance Standards

bull Projected development - 800 to 900 AFY bull Water Conservation Technical Evaluation

SantaBarbaraCAgovWater21

Demand Projections

12000

12500

13000

13500

14000

14500

15000

2010 2012 2014 2016 2018 2020 2022 2024 2026 2028 2030

Plan SB Demand (No Plumbing Code or Conservation Effects)Plumbing Code Effects OnlyPlumbing Code + Program B20 X 2020 Trend Line20 X 2020 Regulatory Limit

Water System Demand Projections (AFY)

SantaBarbaraCAgovWater22

Water Supply Planning Target

Projected Demand 14000Safety Margin (10) + 1400

Water Supply Target = 15400 AFY

SantaBarbaraCAgovWater23

Water Supply Planning Conceptsbull Planning for 6-Year Critical Drought Periodbull Water Supply Modeling - Using Historical

Data with Current Water Supply Sources and Projected Demands

bull Ongoing Conservation vs Short Term Planned Demand Reductions for Extraordinary Situations

SantaBarbaraCAgovWater24

Water Supply Performance

SantaBarbaraCAgovWater25

SantaBarbaraCAgovWater26

SantaBarbaraCAgovWater27

SantaBarbaraCAgovWater28

Key Policy Issuesbull Achieve 20 x 2020 through BMPs Additional

Conservation Measures amp Recycled Waterbull Planning for a 6-Year Duration Critical Drought

- Manage supplies to avoid use of Desal until year six- Water Banking Purchases- Planned Demand Reductions 10 to 15- Recycled Water Expansion

bull Recycled Water Blending bull Sedimentation Management

SantaBarbaraCAgovWater29

Next Stepsbull Finalize updated Long-Term Water

Supply Plan- April 11 Final Comments from Water

Commission- Environmental Review

bull Prepare Urban Water Management Plan Update per State Requirements

bull Target Adoption Date for LTWSP amp UWMP - June 14 2011

SantaBarbaraCAgovWater30

Discussion amp Feedback

SantaBarbaraCAgovWater31

SantaBarbaraCAgovWater32

SantaBarbaraCAgovWater33

SantaBarbaraCAgovWater34

SantaBarbaraCAgovWater35

SantaBarbaraCAgovWater36

Upper Santa Ynez River Operations Agreement(ldquoPass Through Agreementrdquo)

SantaBarbaraCAgovWater37

Context of 1989 Agreementbull City water supply shortage identified ndash Gibraltar

vulnerable to siltation

bull Solution Raise Gibraltar Dam 20rsquo to 40rsquo

bull Challenges by downstream and environmental interests

bull Cachuma enlargement under consideration

SantaBarbaraCAgovWater38

Parties to the Agreement

bull City of Santa Barbarabull Carpinteria Valley Water Districtbull Goleta Water Districtbull Montecito Water Districtbull Santa Ynez River Water Conservation Districtbull SYRWCD Improvement District No 1

Consent and Acknowledgement by US Bureau of Reclamation

SantaBarbaraCAgovWater39

Pass Through Summer no inflow

Current volume (reflects on-going siltation since 1988)

1988 Reservoir volume

Note different siltation levels

SantaBarbaraCAgovWater40

Smaller Reservoir Spills Sooner1988 Reservoir volume

Current Reservoir volume

SantaBarbaraCAgovWater41

Difference is Stored in Cachuma as Gibraltar WaterBase Reservoir

Actual Reservoir

SantaBarbaraCAgovWater42

  • Long Term Water Supply Plan Adaptive Management
  • Overview
  • Historical Background
  • Historical Background
  • Historical Background
  • Slide Number 6
  • Water Supplies - Cachuma
  • Water Supplies - Cachuma
  • Water Supplies - Gibraltar
  • Water Supplies ndash Mission Tunnel
  • Water Supplies ndash State Water
  • Water Supplies ndash State Water
  • Water Supplies - Groundwater
  • Water Supplies ndash Groundwater
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Recycled Water Blending
  • Water Supplies - Desalination
  • Demand Management
  • Demand Projections
  • Water Supply Planning Target
  • Water Supply Planning Concepts
  • Water Supply Performance
  • Slide Number 25
  • Slide Number 26
  • Slide Number 27
  • Key Policy Issues
  • Next Steps
  • Discussion amp Feedback
  • Slide Number 31
  • Slide Number 32
  • Slide Number 33
  • Slide Number 34
  • Slide Number 35
  • Slide Number 36
  • Context of 1989 Agreement
  • Parties to the Agreement
  • Pass Through Summer no inflow
  • Smaller Reservoir Spills Sooner
  • Difference is Stored in Cachuma as Gibraltar Water
  • Slide Number 42
Detailed Simple
Maximum Capacity () Maximum Capacity (AF) 1980s Current
Lake Cachuma 32 8277 Cachuma 9700 8577
Gibraltar Reservoir 19 5000 Gibraltar 7400 6000
Mission Tunnel 4 1000 Groundwater 4500 4150
State Water Project 12 3000 Recycled Water 800
Groundwater 16 4150 State Water 3000
Recycled Water 3 800 Desalination 3125
Montecito Transfer 1 300 Totals 21600 25652
Desalination 12 3125
100 25652
Lake Cachuma
Gibraltar Reservoir
Mission Tunnel
State Water Project
Groundwater
Recycled Water
Montecito Transfer
Desalination
In our review of the FMP EIREIS we had a small discussion on how to characterize our water supplies in particular State Water In that discussion I commented that the average State Water delivery did not apply to how we did our water supply planning a
The supply target in this analysis is 18200 AFY with a goal of having no shortage greater than 1820 (10) in any year The critical year is 1951 This supply target was developed for us by our Community Development Department for the LTWSP and include
The Cityrsquos supply strategy as modeled is to
use all surface water supply first with a minimum (300 AFY) amount of local groundwater
use available State Water to get us to the supply target
if enough State Water is not available meet the supply target with local groundwater up to 4500 AFY
if that is not enough turn on the desal plant with a goal of having no shortage greater than 1820 AFY in the critical year
The modeling results presented in the first spreadsheet page (LTWSP2002) and the chart shows that our supplies meet the overall production target and satisfy the goal of having a shortage less than 10 in the critical year
In this analysis State Water is an important element in meeting the annual target and the critical year shortage goal The average delivery of State Water is meaningless in this analysis Also with the Cityrsquos approach our average delivery of State Wat
Another important consideration is that the estimates of State Water deliveries based on history result in historical critical periods for the Santa Ynez River and the State Water Project not coinciding I think it is acceptable for one to do this analys
I am not sure where this leaves us with respect to what we put in the FMP EISEIR for our individual water supplies For the City of Santa Barbara input I can give John Gray the bottom line of the spreadsheet with our averages for the 76 year period T
One value of the Cityrsquos approach is that it gives some meaning to the shortages that would happen (or at least are modeled to happen) if the surcharge is not included or other changes to Cachuma Project yield are suggested Our goal again is a shortage
LONG TERM WATER SUPPLY PROGRAM SUPPLY SCENARIO
As estimated by the Santa Ynez River Hydrology Model using 3 ft surcharge and BO fish releases
State Water critical period is moved to coincide with Cachuma critical period
Water Conservation and GW recharge is left out of this version
Includes ground water recovery and 10 safety margin values in acre feet production is 18200 AFY
Filename=LTWSP2002xls SWP
Year Cachuma Desal SWP GibJun GW Recycled Total Shortage
1918 8277 2357 6366 300 900 18200 14300 80
1919 8277 2400 5865 758 900 18200 14300 80
1920 8277 2400 5560 1063 900 18200 14300 80
1921 8277 2400 5483 1140 900 18200 14300 80
1922 8277 2792 5931 300 900 18200 14300 94 094
1923 8277 2894 5829 300 900 18200 14300 99 099
1924 8277 1500 5494 2029 900 18200 14300 50 05
1925 8277 1290 5294 2439 900 18200 14300 43 043
1926 8277 1740 5406 1877 900 18200 14300 58 058
1927 8277 2550 5643 830 900 18200 14300 85 085
1928 8277 2580 5548 895 900 18200 14300 86 086
1929 8277 1680 5425 1918 900 18200 14300 56 056
1930 8232 2250 5330 1488 900 18200 14300 75 057
1931 7306 2010 4673 3311 900 18200 14300 67 042
1932 7857 1950 4713 2780 900 18200 14300 65 044
1933 8277 2010 5451 1562 900 18200 14300 67 038
1934 8277 2640 5347 1036 900 18200 14300 88 033
1935 8277 1950 5528 1545 900 18200 14300 65 065
1936 8277 2460 5544 1019 900 18200 14300 82 082
1937 8277 2220 5797 1006 900 18200 14300 74 074
1938 8277 2613 6110 300 900 18200 14300 94 094
1939 8277 2640 5914 469 900 18200 14300 88 088
1940 8277 2460 5586 977 900 18200 14300 82 082
1941 8277 2318 6405 300 900 18200 14300 97 097
1942 8277 2473 6250 300 900 18200 14300 100 1
1943 8277 2534 6189 300 900 18200 14300 89 089
1944 8277 2639 6084 300 900 18200 14300 92 092
1945 8277 2700 5804 519 900 18200 14300 90 09
1946 8277 2640 5630 753 900 18200 14300 88 088
1947 8277 1710 5427 1886 900 18200 14300 57 075
1948 8277 1260 5236 2527 900 18200 14300 42 067
1949 7856 1604 1320 2021 4500 900 18200 -0 14300 44 065
1950 6760 1564 1140 3336 4500 900 18200 0 14300 38 067
1951 5470 3000 990 500 4500 900 15360 2840 01560380894 14300 33 088
1952 7546 2155 2880 4419 300 900 18200 14300 96 096
1953 8277 323 2700 5700 300 900 18200 14300 90 09
1954 8277 739 2490 5494 300 900 18200 14300 83 083
1955 8277 1222 2070 5431 300 900 18200 14300 69 069
1956 8234 2700 5462 904 900 18200 14300 90 09
1957 7521 2640 5411 1728 900 18200 14300 88 088
1958 7875 2700 5997 728 900 18200 14300 90 09
1959 8277 2640 5921 462 900 18200 14300 88 088
1960 8277 1890 5497 1636 900 18200 14300 63 063
1961 8277 1830 4178 3014 900 18200 14300 61 061
1962 8277 2340 4147 2536 900 18200 14300 78 078
1963 8277 2820 5537 666 900 18200 14300 94 094
1964 8277 2640 5327 1056 900 18200 14300 88 088
1965 8081 2460 5309 1450 900 18200 14300 82 082
1966 8220 2880 5639 561 900 18200 14300 96 096
1967 8277 2827 5896 300 900 18200 14300 96 096
1968 8277 2670 5675 678 900 18200 14300 89 089
1969 8277 2397 6326 300 900 18200 14300 93 093
1970 8277 2670 6036 317 900 18200 14300 89 089
1971 8277 2820 5733 470 900 18200 14300 94 094
1972 8277 2640 5443 940 900 18200 14300 88 088
1973 8277 2460 5747 816 900 18200 14300 82 082
1974 8277 2820 5785 418 900 18200 14300 94 094
1975 8277 2880 5742 401 900 18200 14300 96 096
1976 8277 2640 5515 868 900 18200 14300 88 088
1977 8277 990 5279 2754 900 18200 14300 33 033
1978 8277 2040 6052 931 900 18200 14300 68 068
1979 8277 2550 6171 302 900 18200 14300 85 085
1980 8277 2460 6188 375 900 18200 14300 82 082
1981 8277 2490 6145 388 900 18200 14300 83 083
1982 8277 2735 5988 300 900 18200 14300 94 094
1983 8277 1768 6955 300 900 18200 14300 100 1
1984 8277 2419 6304 300 900 18200 14300 100 1
1985 8277 2872 5851 300 900 18200 14300 96 096
1986 8277 2430 5703 890 900 18200 14300 81 081
1987 8277 2070 5321 1632 900 18200 14300 69 069
1988 8277 1290 5858 1875 900 18200 14300 43 043
1989 7990 1740 5641 1929 900 18200 14300 58 058
1990 6885 2365 1380 2170 4500 900 18200 14300 46 046
1991 6829 2388 870 2713 4500 900 18200 14300 29 029
1992 7997 2213 930 5860 300 900 18200 14300 31 031
1993 8277 1857 6866 300 900 18200 14300 76 076
Average 8122 231 2249 5436 1224 900 18163 769342 088
2241
7470
163592
LONG TERM WATER SUPPLY PROGRAM SUPPLY SCENARIO
As estimated by the Santa Ynez River Hydrology Model using 3 ft surcharge and BO fish releases
State Water deliveries are based on delivery estimates provided by CCWA in 2001
Water Conservation and GW recharge is left out of this version
Includes ground water recovery and 10 safety margin values in acre feet production is 18200 AFY
Filename=LTWSP2002xls SWP
Year Cachuma Desal SWP GibJun GW Recycled Total Shortage
1918 8277 2357 6366 300 900 18200 14300 80
1919 8277 2400 5865 758 900 18200 14300 80
1920 8277 2400 5560 1063 900 18200 14300 80
1921 8277 2400 5483 1140 900 18200 14300 80
1922 8277 2792 5931 300 900 18200 14300 94 094
1923 8277 2894 5829 300 900 18200 14300 99 099
1924 8277 1500 5494 2029 900 18200 14300 50 05
1925 8277 1290 5294 2439 900 18200 14300 43 043
1926 8277 1740 5406 1877 900 18200 14300 58 058
1927 8277 2550 5643 830 900 18200 14300 85 085
1928 8277 2580 5548 895 900 18200 14300 86 086
1929 8277 1680 5425 1918 900 18200 14300 56 056
1930 8232 1710 5330 2028 900 18200 14300 57 057
1931 7306 1260 4673 4061 900 18200 14300 42 042
1932 7857 1320 4713 3410 900 18200 14300 44 044
1933 8277 1140 5451 2432 900 18200 14300 38 038
1934 8277 990 5347 2686 900 18200 14300 33 033
1935 8277 1950 5528 1545 900 18200 14300 65 065
1936 8277 2460 5544 1019 900 18200 14300 82 082
1937 8277 2220 5797 1006 900 18200 14300 74 074
1938 8277 2613 6110 300 900 18200 14300 94 094
1939 8277 2640 5914 469 900 18200 14300 88 088
1940 8277 2460 5586 977 900 18200 14300 82 082
1941 8277 2318 6405 300 900 18200 14300 97 097
1942 8277 2473 6250 300 900 18200 14300 100 1
1943 8277 2534 6189 300 900 18200 14300 89 089
1944 8277 2639 6084 300 900 18200 14300 92 092
1945 8277 2700 5804 519 900 18200 14300 90 09
1946 8277 2640 5630 753 900 18200 14300 88 088
1947 8277 2250 5427 1346 900 18200 14300 75 075
1948 8277 2010 5236 1777 900 18200 14300 67 067
1949 7856 974 1950 2021 4500 900 18200 14300 65 065
1950 6760 694 2010 3336 4500 900 18200 14300 67 067
1951 5470 3000 2640 500 4500 900 17010 1190 00653787487 14300 88 088
1952 7546 2155 2880 4419 300 900 18200 14300 96 096
1953 8277 323 2700 5700 300 900 18200 14300 90 09
1954 8277 739 2490 5494 300 900 18200 14300 83 083
1955 8277 1222 2070 5431 300 900 18200 14300 69 069
1956 8234 2700 5462 904 900 18200 14300 90 09
1957 7521 2640 5411 1728 900 18200 14300 88 088
1958 7875 2700 5997 728 900 18200 14300 90 09
1959 8277 2640 5921 462 900 18200 14300 88 088
1960 8277 1890 5497 1636 900 18200 14300 63 063
1961 8277 1830 4178 3014 900 18200 14300 61 061
1962 8277 2340 4147 2536 900 18200 14300 78 078
1963 8277 2820 5537 666 900 18200 14300 94 094
1964 8277 2640 5327 1056 900 18200 14300 88 088
1965 8081 2460 5309 1450 900 18200 14300 82 082
1966 8220 2880 5639 561 900 18200 14300 96 096
1967 8277 2827 5896 300 900 18200 14300 96 096
1968 8277 2670 5675 678 900 18200 14300 89 089
1969 8277 2397 6326 300 900 18200 14300 93 093
1970 8277 2670 6036 317 900 18200 14300 89 089
1971 8277 2820 5733 470 900 18200 14300 94 094
1972 8277 2640 5443 940 900 18200 14300 88 088
1973 8277 2460 5747 816 900 18200 14300 82 082
1974 8277 2820 5785 418 900 18200 14300 94 094
1975 8277 2880 5742 401 900 18200 14300 96 096
1976 8277 2640 5515 868 900 18200 14300 88 088
1977 8277 990 5279 2754 900 18200 14300 33 033
1978 8277 2040 6052 931 900 18200 14300 68 068
1979 8277 2550 6171 302 900 18200 14300 85 085
1980 8277 2460 6188 375 900 18200 14300 82 082
1981 8277 2490 6145 388 900 18200 14300 83 083
1982 8277 2735 5988 300 900 18200 14300 94 094
1983 8277 1768 6955 300 900 18200 14300 100 1
1984 8277 2419 6304 300 900 18200 14300 100 1
1985 8277 2872 5851 300 900 18200 14300 96 096
1986 8277 2430 5703 890 900 18200 14300 81 081
1987 8277 2070 5321 1632 900 18200 14300 69 069
1988 8277 1290 5858 1875 900 18200 14300 43 043
1989 7990 1740 5641 1929 900 18200 14300 58 058
1990 6885 2365 1380 2170 4500 900 18200 14300 46 046
1991 6829 2388 870 2713 4500 900 18200 14300 29 029
1992 7997 2213 930 5860 300 900 18200 14300 31 031
1993 8277 1857 6866 300 900 18200 14300 76 076
Average 8122 211 2249 5436 1266 900 18184 769342 088
2241
7470
163592
1918 1918 1918 1918 1918 1918 1918
1919 1919 1919 1919 1919 1919 1919
1920 1920 1920 1920 1920 1920 1920
1921 1921 1921 1921 1921 1921 1921
1922 1922 1922 1922 1922 1922 1922
1923 1923 1923 1923 1923 1923 1923
1924 1924 1924 1924 1924 1924 1924
1925 1925 1925 1925 1925 1925 1925
1926 1926 1926 1926 1926 1926 1926
1927 1927 1927 1927 1927 1927 1927
1928 1928 1928 1928 1928 1928 1928
1929 1929 1929 1929 1929 1929 1929
1930 1930 1930 1930 1930 1930 1930
1931 1931 1931 1931 1931 1931 1931
1932 1932 1932 1932 1932 1932 1932
1933 1933 1933 1933 1933 1933 1933
1934 1934 1934 1934 1934 1934 1934
1935 1935 1935 1935 1935 1935 1935
1936 1936 1936 1936 1936 1936 1936
1937 1937 1937 1937 1937 1937 1937
1938 1938 1938 1938 1938 1938 1938
1939 1939 1939 1939 1939 1939 1939
1940 1940 1940 1940 1940 1940 1940
1941 1941 1941 1941 1941 1941 1941
1942 1942 1942 1942 1942 1942 1942
1943 1943 1943 1943 1943 1943 1943
1944 1944 1944 1944 1944 1944 1944
1945 1945 1945 1945 1945 1945 1945
1946 1946 1946 1946 1946 1946 1946
1947 1947 1947 1947 1947 1947 1947
1948 1948 1948 1948 1948 1948 1948
1949 1949 1949 1949 1949 1949 1949
1950 1950 1950 1950 1950 1950 1950
1951 1951 1951 1951 1951 1951 1951
1952 1952 1952 1952 1952 1952 1952
1953 1953 1953 1953 1953 1953 1953
1954 1954 1954 1954 1954 1954 1954
1955 1955 1955 1955 1955 1955 1955
1956 1956 1956 1956 1956 1956 1956
1957 1957 1957 1957 1957 1957 1957
1958 1958 1958 1958 1958 1958 1958
1959 1959 1959 1959 1959 1959 1959
1960 1960 1960 1960 1960 1960 1960
1961 1961 1961 1961 1961 1961 1961
1962 1962 1962 1962 1962 1962 1962
1963 1963 1963 1963 1963 1963 1963
1964 1964 1964 1964 1964 1964 1964
1965 1965 1965 1965 1965 1965 1965
1966 1966 1966 1966 1966 1966 1966
1967 1967 1967 1967 1967 1967 1967
1968 1968 1968 1968 1968 1968 1968
1969 1969 1969 1969 1969 1969 1969
1970 1970 1970 1970 1970 1970 1970
1971 1971 1971 1971 1971 1971 1971
1972 1972 1972 1972 1972 1972 1972
1973 1973 1973 1973 1973 1973 1973
1974 1974 1974 1974 1974 1974 1974
1975 1975 1975 1975 1975 1975 1975
1976 1976 1976 1976 1976 1976 1976
1977 1977 1977 1977 1977 1977 1977
1978 1978 1978 1978 1978 1978 1978
1979 1979 1979 1979 1979 1979 1979
1980 1980 1980 1980 1980 1980 1980
1981 1981 1981 1981 1981 1981 1981
1982 1982 1982 1982 1982 1982 1982
1983 1983 1983 1983 1983 1983 1983
1984 1984 1984 1984 1984 1984 1984
1985 1985 1985 1985 1985 1985 1985
1986 1986 1986 1986 1986 1986 1986
1987 1987 1987 1987 1987 1987 1987
1988 1988 1988 1988 1988 1988 1988
1989 1989 1989 1989 1989 1989 1989
1990 1990 1990 1990 1990 1990 1990
1991 1991 1991 1991 1991 1991 1991
1992 1992 1992 1992 1992 1992 1992
1993 1993 1993 1993 1993 1993 1993
Cachuma
Gibraltar
Groundwater
Recycled Water
State Water
Desalination
Detailed Simple
Maximum Capacity () Maximum Capacity (AF) 1980s Current
Lake Cachuma 32 8277 Cachuma 9700 8577
Gibraltar Reservoir 19 5000 Gibraltar 7400 6000
Mission Tunnel 4 1000 Groundwater 4500 4150
State Water Project 12 3000 Recycled Water 800
Groundwater 16 4150 State Water 3000
Recycled Water 3 800 Desalination 3125
Montecito Transfer 1 300 Totals 21600 25652
Desalination 12 3125
100 25652
Lake Cachuma
Gibraltar Reservoir
Mission Tunnel
State Water Project
Groundwater
Recycled Water
Montecito Transfer
Desalination
In our review of the FMP EIREIS we had a small discussion on how to characterize our water supplies in particular State Water In that discussion I commented that the average State Water delivery did not apply to how we did our water supply planning a
The supply target in this analysis is 18200 AFY with a goal of having no shortage greater than 1820 (10) in any year The critical year is 1951 This supply target was developed for us by our Community Development Department for the LTWSP and include
The Cityrsquos supply strategy as modeled is to
use all surface water supply first with a minimum (300 AFY) amount of local groundwater
use available State Water to get us to the supply target
if enough State Water is not available meet the supply target with local groundwater up to 4500 AFY
if that is not enough turn on the desal plant with a goal of having no shortage greater than 1820 AFY in the critical year
The modeling results presented in the first spreadsheet page (LTWSP2002) and the chart shows that our supplies meet the overall production target and satisfy the goal of having a shortage less than 10 in the critical year
In this analysis State Water is an important element in meeting the annual target and the critical year shortage goal The average delivery of State Water is meaningless in this analysis Also with the Cityrsquos approach our average delivery of State Wat
Another important consideration is that the estimates of State Water deliveries based on history result in historical critical periods for the Santa Ynez River and the State Water Project not coinciding I think it is acceptable for one to do this analys
I am not sure where this leaves us with respect to what we put in the FMP EISEIR for our individual water supplies For the City of Santa Barbara input I can give John Gray the bottom line of the spreadsheet with our averages for the 76 year period T
One value of the Cityrsquos approach is that it gives some meaning to the shortages that would happen (or at least are modeled to happen) if the surcharge is not included or other changes to Cachuma Project yield are suggested Our goal again is a shortage
LONG TERM WATER SUPPLY PROGRAM SUPPLY SCENARIO
As estimated by the Santa Ynez River Hydrology Model using 3 ft surcharge and BO fish releases
State Water critical period is moved to coincide with Cachuma critical period
Water Conservation and GW recharge is left out of this version
Includes ground water recovery and 10 safety margin values in acre feet production is 18200 AFY
Filename=LTWSP2002xls SWP
Year Cachuma Desal SWP GibJun GW Recycled Total Shortage
1918 8277 2357 6366 300 900 18200 14300 80
1919 8277 2400 5865 758 900 18200 14300 80
1920 8277 2400 5560 1063 900 18200 14300 80
1921 8277 2400 5483 1140 900 18200 14300 80
1922 8277 2792 5931 300 900 18200 14300 94 094
1923 8277 2894 5829 300 900 18200 14300 99 099
1924 8277 1500 5494 2029 900 18200 14300 50 05
1925 8277 1290 5294 2439 900 18200 14300 43 043
1926 8277 1740 5406 1877 900 18200 14300 58 058
1927 8277 2550 5643 830 900 18200 14300 85 085
1928 8277 2580 5548 895 900 18200 14300 86 086
1929 8277 1680 5425 1918 900 18200 14300 56 056
1930 8232 2250 5330 1488 900 18200 14300 75 057
1931 7306 2010 4673 3311 900 18200 14300 67 042
1932 7857 1950 4713 2780 900 18200 14300 65 044
1933 8277 2010 5451 1562 900 18200 14300 67 038
1934 8277 2640 5347 1036 900 18200 14300 88 033
1935 8277 1950 5528 1545 900 18200 14300 65 065
1936 8277 2460 5544 1019 900 18200 14300 82 082
1937 8277 2220 5797 1006 900 18200 14300 74 074
1938 8277 2613 6110 300 900 18200 14300 94 094
1939 8277 2640 5914 469 900 18200 14300 88 088
1940 8277 2460 5586 977 900 18200 14300 82 082
1941 8277 2318 6405 300 900 18200 14300 97 097
1942 8277 2473 6250 300 900 18200 14300 100 1
1943 8277 2534 6189 300 900 18200 14300 89 089
1944 8277 2639 6084 300 900 18200 14300 92 092
1945 8277 2700 5804 519 900 18200 14300 90 09
1946 8277 2640 5630 753 900 18200 14300 88 088
1947 8277 1710 5427 1886 900 18200 14300 57 075
1948 8277 1260 5236 2527 900 18200 14300 42 067
1949 7856 1604 1320 2021 4500 900 18200 -0 14300 44 065
1950 6760 1564 1140 3336 4500 900 18200 0 14300 38 067
1951 5470 3000 990 500 4500 900 15360 2840 01560380894 14300 33 088
1952 7546 2155 2880 4419 300 900 18200 14300 96 096
1953 8277 323 2700 5700 300 900 18200 14300 90 09
1954 8277 739 2490 5494 300 900 18200 14300 83 083
1955 8277 1222 2070 5431 300 900 18200 14300 69 069
1956 8234 2700 5462 904 900 18200 14300 90 09
1957 7521 2640 5411 1728 900 18200 14300 88 088
1958 7875 2700 5997 728 900 18200 14300 90 09
1959 8277 2640 5921 462 900 18200 14300 88 088
1960 8277 1890 5497 1636 900 18200 14300 63 063
1961 8277 1830 4178 3014 900 18200 14300 61 061
1962 8277 2340 4147 2536 900 18200 14300 78 078
1963 8277 2820 5537 666 900 18200 14300 94 094
1964 8277 2640 5327 1056 900 18200 14300 88 088
1965 8081 2460 5309 1450 900 18200 14300 82 082
1966 8220 2880 5639 561 900 18200 14300 96 096
1967 8277 2827 5896 300 900 18200 14300 96 096
1968 8277 2670 5675 678 900 18200 14300 89 089
1969 8277 2397 6326 300 900 18200 14300 93 093
1970 8277 2670 6036 317 900 18200 14300 89 089
1971 8277 2820 5733 470 900 18200 14300 94 094
1972 8277 2640 5443 940 900 18200 14300 88 088
1973 8277 2460 5747 816 900 18200 14300 82 082
1974 8277 2820 5785 418 900 18200 14300 94 094
1975 8277 2880 5742 401 900 18200 14300 96 096
1976 8277 2640 5515 868 900 18200 14300 88 088
1977 8277 990 5279 2754 900 18200 14300 33 033
1978 8277 2040 6052 931 900 18200 14300 68 068
1979 8277 2550 6171 302 900 18200 14300 85 085
1980 8277 2460 6188 375 900 18200 14300 82 082
1981 8277 2490 6145 388 900 18200 14300 83 083
1982 8277 2735 5988 300 900 18200 14300 94 094
1983 8277 1768 6955 300 900 18200 14300 100 1
1984 8277 2419 6304 300 900 18200 14300 100 1
1985 8277 2872 5851 300 900 18200 14300 96 096
1986 8277 2430 5703 890 900 18200 14300 81 081
1987 8277 2070 5321 1632 900 18200 14300 69 069
1988 8277 1290 5858 1875 900 18200 14300 43 043
1989 7990 1740 5641 1929 900 18200 14300 58 058
1990 6885 2365 1380 2170 4500 900 18200 14300 46 046
1991 6829 2388 870 2713 4500 900 18200 14300 29 029
1992 7997 2213 930 5860 300 900 18200 14300 31 031
1993 8277 1857 6866 300 900 18200 14300 76 076
Average 8122 231 2249 5436 1224 900 18163 769342 088
2241
7470
163592
LONG TERM WATER SUPPLY PROGRAM SUPPLY SCENARIO
As estimated by the Santa Ynez River Hydrology Model using 3 ft surcharge and BO fish releases
State Water deliveries are based on delivery estimates provided by CCWA in 2001
Water Conservation and GW recharge is left out of this version
Includes ground water recovery and 10 safety margin values in acre feet production is 18200 AFY
Filename=LTWSP2002xls SWP
Year Cachuma Desal SWP GibJun GW Recycled Total Shortage
1918 8277 2357 6366 300 900 18200 14300 80
1919 8277 2400 5865 758 900 18200 14300 80
1920 8277 2400 5560 1063 900 18200 14300 80
1921 8277 2400 5483 1140 900 18200 14300 80
1922 8277 2792 5931 300 900 18200 14300 94 094
1923 8277 2894 5829 300 900 18200 14300 99 099
1924 8277 1500 5494 2029 900 18200 14300 50 05
1925 8277 1290 5294 2439 900 18200 14300 43 043
1926 8277 1740 5406 1877 900 18200 14300 58 058
1927 8277 2550 5643 830 900 18200 14300 85 085
1928 8277 2580 5548 895 900 18200 14300 86 086
1929 8277 1680 5425 1918 900 18200 14300 56 056
1930 8232 1710 5330 2028 900 18200 14300 57 057
1931 7306 1260 4673 4061 900 18200 14300 42 042
1932 7857 1320 4713 3410 900 18200 14300 44 044
1933 8277 1140 5451 2432 900 18200 14300 38 038
1934 8277 990 5347 2686 900 18200 14300 33 033
1935 8277 1950 5528 1545 900 18200 14300 65 065
1936 8277 2460 5544 1019 900 18200 14300 82 082
1937 8277 2220 5797 1006 900 18200 14300 74 074
1938 8277 2613 6110 300 900 18200 14300 94 094
1939 8277 2640 5914 469 900 18200 14300 88 088
1940 8277 2460 5586 977 900 18200 14300 82 082
1941 8277 2318 6405 300 900 18200 14300 97 097
1942 8277 2473 6250 300 900 18200 14300 100 1
1943 8277 2534 6189 300 900 18200 14300 89 089
1944 8277 2639 6084 300 900 18200 14300 92 092
1945 8277 2700 5804 519 900 18200 14300 90 09
1946 8277 2640 5630 753 900 18200 14300 88 088
1947 8277 2250 5427 1346 900 18200 14300 75 075
1948 8277 2010 5236 1777 900 18200 14300 67 067
1949 7856 974 1950 2021 4500 900 18200 14300 65 065
1950 6760 694 2010 3336 4500 900 18200 14300 67 067
1951 5470 3000 2640 500 4500 900 17010 1190 00653787487 14300 88 088
1952 7546 2155 2880 4419 300 900 18200 14300 96 096
1953 8277 323 2700 5700 300 900 18200 14300 90 09
1954 8277 739 2490 5494 300 900 18200 14300 83 083
1955 8277 1222 2070 5431 300 900 18200 14300 69 069
1956 8234 2700 5462 904 900 18200 14300 90 09
1957 7521 2640 5411 1728 900 18200 14300 88 088
1958 7875 2700 5997 728 900 18200 14300 90 09
1959 8277 2640 5921 462 900 18200 14300 88 088
1960 8277 1890 5497 1636 900 18200 14300 63 063
1961 8277 1830 4178 3014 900 18200 14300 61 061
1962 8277 2340 4147 2536 900 18200 14300 78 078
1963 8277 2820 5537 666 900 18200 14300 94 094
1964 8277 2640 5327 1056 900 18200 14300 88 088
1965 8081 2460 5309 1450 900 18200 14300 82 082
1966 8220 2880 5639 561 900 18200 14300 96 096
1967 8277 2827 5896 300 900 18200 14300 96 096
1968 8277 2670 5675 678 900 18200 14300 89 089
1969 8277 2397 6326 300 900 18200 14300 93 093
1970 8277 2670 6036 317 900 18200 14300 89 089
1971 8277 2820 5733 470 900 18200 14300 94 094
1972 8277 2640 5443 940 900 18200 14300 88 088
1973 8277 2460 5747 816 900 18200 14300 82 082
1974 8277 2820 5785 418 900 18200 14300 94 094
1975 8277 2880 5742 401 900 18200 14300 96 096
1976 8277 2640 5515 868 900 18200 14300 88 088
1977 8277 990 5279 2754 900 18200 14300 33 033
1978 8277 2040 6052 931 900 18200 14300 68 068
1979 8277 2550 6171 302 900 18200 14300 85 085
1980 8277 2460 6188 375 900 18200 14300 82 082
1981 8277 2490 6145 388 900 18200 14300 83 083
1982 8277 2735 5988 300 900 18200 14300 94 094
1983 8277 1768 6955 300 900 18200 14300 100 1
1984 8277 2419 6304 300 900 18200 14300 100 1
1985 8277 2872 5851 300 900 18200 14300 96 096
1986 8277 2430 5703 890 900 18200 14300 81 081
1987 8277 2070 5321 1632 900 18200 14300 69 069
1988 8277 1290 5858 1875 900 18200 14300 43 043
1989 7990 1740 5641 1929 900 18200 14300 58 058
1990 6885 2365 1380 2170 4500 900 18200 14300 46 046
1991 6829 2388 870 2713 4500 900 18200 14300 29 029
1992 7997 2213 930 5860 300 900 18200 14300 31 031
1993 8277 1857 6866 300 900 18200 14300 76 076
Average 8122 211 2249 5436 1266 900 18184 769342 088
2241
7470
163592
1918 1918 1918 1918 1918 1918 1918
1919 1919 1919 1919 1919 1919 1919
1920 1920 1920 1920 1920 1920 1920
1921 1921 1921 1921 1921 1921 1921
1922 1922 1922 1922 1922 1922 1922
1923 1923 1923 1923 1923 1923 1923
1924 1924 1924 1924 1924 1924 1924
1925 1925 1925 1925 1925 1925 1925
1926 1926 1926 1926 1926 1926 1926
1927 1927 1927 1927 1927 1927 1927
1928 1928 1928 1928 1928 1928 1928
1929 1929 1929 1929 1929 1929 1929
1930 1930 1930 1930 1930 1930 1930
1931 1931 1931 1931 1931 1931 1931
1932 1932 1932 1932 1932 1932 1932
1933 1933 1933 1933 1933 1933 1933
1934 1934 1934 1934 1934 1934 1934
1935 1935 1935 1935 1935 1935 1935
1936 1936 1936 1936 1936 1936 1936
1937 1937 1937 1937 1937 1937 1937
1938 1938 1938 1938 1938 1938 1938
1939 1939 1939 1939 1939 1939 1939
1940 1940 1940 1940 1940 1940 1940
1941 1941 1941 1941 1941 1941 1941
1942 1942 1942 1942 1942 1942 1942
1943 1943 1943 1943 1943 1943 1943
1944 1944 1944 1944 1944 1944 1944
1945 1945 1945 1945 1945 1945 1945
1946 1946 1946 1946 1946 1946 1946
1947 1947 1947 1947 1947 1947 1947
1948 1948 1948 1948 1948 1948 1948
1949 1949 1949 1949 1949 1949 1949
1950 1950 1950 1950 1950 1950 1950
1951 1951 1951 1951 1951 1951 1951
1952 1952 1952 1952 1952 1952 1952
1953 1953 1953 1953 1953 1953 1953
1954 1954 1954 1954 1954 1954 1954
1955 1955 1955 1955 1955 1955 1955
1956 1956 1956 1956 1956 1956 1956
1957 1957 1957 1957 1957 1957 1957
1958 1958 1958 1958 1958 1958 1958
1959 1959 1959 1959 1959 1959 1959
1960 1960 1960 1960 1960 1960 1960
1961 1961 1961 1961 1961 1961 1961
1962 1962 1962 1962 1962 1962 1962
1963 1963 1963 1963 1963 1963 1963
1964 1964 1964 1964 1964 1964 1964
1965 1965 1965 1965 1965 1965 1965
1966 1966 1966 1966 1966 1966 1966
1967 1967 1967 1967 1967 1967 1967
1968 1968 1968 1968 1968 1968 1968
1969 1969 1969 1969 1969 1969 1969
1970 1970 1970 1970 1970 1970 1970
1971 1971 1971 1971 1971 1971 1971
1972 1972 1972 1972 1972 1972 1972
1973 1973 1973 1973 1973 1973 1973
1974 1974 1974 1974 1974 1974 1974
1975 1975 1975 1975 1975 1975 1975
1976 1976 1976 1976 1976 1976 1976
1977 1977 1977 1977 1977 1977 1977
1978 1978 1978 1978 1978 1978 1978
1979 1979 1979 1979 1979 1979 1979
1980 1980 1980 1980 1980 1980 1980
1981 1981 1981 1981 1981 1981 1981
1982 1982 1982 1982 1982 1982 1982
1983 1983 1983 1983 1983 1983 1983
1984 1984 1984 1984 1984 1984 1984
1985 1985 1985 1985 1985 1985 1985
1986 1986 1986 1986 1986 1986 1986
1987 1987 1987 1987 1987 1987 1987
1988 1988 1988 1988 1988 1988 1988
1989 1989 1989 1989 1989 1989 1989
1990 1990 1990 1990 1990 1990 1990
1991 1991 1991 1991 1991 1991 1991
1992 1992 1992 1992 1992 1992 1992
1993 1993 1993 1993 1993 1993 1993
Cachuma
Gibraltar
Groundwater
Page 5: PUBLIC WORKS DEPARTMENT WATER RESOURCES DIVISION …...mountain • Supply ranges from ... Water Supplies –State Water • A small, but useful part of our water supply • Both the

ltwspCht

ampA
Page ampP
Recycled
Cachuma
Gib etc
SWP
GW
Desal
Shortage
Water Supply (AF)
Figure 1 Long-Term Water Supply ProgramUpdated to include surchararge fish releases and 1990 drought
900
82773366
6366
23566634
300
900
82773366
5865
2400
7576634
900
82773366
5560
2400
10626634
900
82773366
5483
2400
11396634
900
82773366
5931
27916634
300
900
82773366
5829
28936634
300
900
82773366
5494
1500
20286634
900
82773366
5294
1290
24386634
900
82773366
5406
1740
18766634
900
82773366
5643
2550
8296634
900
82773366
5548
2580
8946634
900
82773366
5425
1680
19176634
900
8231514135
5330
1710
2028485865
900
7305562347
4673246
1260
4061191653
900
7856777469
471278
1320
3410442531
900
82773366
5451
1140
24316634
900
82773366
5347
990
26856634
900
82773366
5528
1950
15446634
900
82773366
5544
2460
10186634
900
82773366
5797
2220
10056634
900
82773366
6110
26126634
300
900
82773366
5914
2640
4686634
900
82773366
5586
2460
9766634
900
82773366
6405
23176634
300
900
82773366
6250
24726634
300
900
82773366
6189
25336634
300
900
82773366
6084
26386634
300
900
82773366
5804
2700
5186634
900
82773366
5630
2640
7526634
900
82773366
5427
2250
13456634
900
82773366
5236
2010
17766634
900
7855786017
2020508
1950
4500
974
900
6759906438
3335608
2010
4500
694485562
900
547040079
500
2640
4500
3000
1189893227
900
7545802755
441926
2880
300
2155
900
82773366
5700
2700
300
323
900
82773366
5494
2490
300
739
900
82773366
5431
2070
300
1222
900
8233699836
5462
2700
904300164
900
7520604423
5411
2640
1728395577
900
787483284
5997
2700
72816716
900
82773366
5921
2640
4616634
900
82773366
5497
1890
16356634
900
82773366
4178353
1830
30143104
900
82773366
4147065
2340
25355984
900
82773366
5537
2820
6656634
900
82773366
5327
2640
10556634
900
8080887468
5309
2460
1450112532
900
8219636025
5639
2880
561363975
900
82773366
5896
28266634
300
900
82773366
5675
2670
6776634
900
82773366
6326
23966634
300
900
82773366
6036
2670
3166634
900
82773366
5733
2820
4696634
900
82773366
5443
2640
9396634
900
82773366
5747
2460
8156634
900
82773366
5785
2820
4176634
900
82773366
5742
2880
4006634
900
82773366
5515
2640
8676634
900
82773366
5279
990
27536634
900
82773366
6052
2040
9306634
900
82773366
6171
2550
3016634
900
82773366
6188
2460
3746634
900
82773366
6145
2490
3876634
900
82773366
5988
27346634
300
900
82773366
6955
17676634
300
900
82773366
6304
24186634
300
900
82773366
5851
28716634
300
900
82773366
5703
2430
8896634
900
82773366
5321
2070
16316634
900
82773366
5858
1290
18746634
900
7990356312
5641
1740
1928643688
900
6885154509
2170335
1380
4500
2364510491
900
682933383
271296
870
4500
238770617
900
7997267505
5860
930
300
2213
900
82773366
6866
18566634
300

LTWSP2002

LTWSP2002 (coincide)

Text of Accompanying Email

Chart1

Maximum Capacity (AF)
8277
5000
1000
3000
4150
800
300
3125

Pie Chart Data

Pie Chart Data

Cachuma8277 AF
Gibraltar6000 AF
Groundwater4150 AF
State Water3000 AF
Recycled800 AF
Desalination3125 AF
Current
Current Water Supply(AF of Capacity)
Gibraltar7400 AF
Cachuma9700 AF
Groundwater4500 AF
1980s
1980s Water Supply(AF of Capacity)

SantaBarbaraCAgovWater4

Historical Backgroundbull Gibraltar Pass Through Agreement

(1989)- Gibraltar Enlargement Deferred- City to ldquoPass Throughrdquo Gibraltar

Water to Cachuma

bull 1987 ndash 1991 Drought - 50 Cutbacks Sought - State Water Bond Approval- Advisory Vote for Desal

Gibraltar Reservoir1989

SantaBarbaraCAgovWater5

Historical BackgroundLong-Term Water Supply Program (1994)

- Added Recycled WaterDesal amp State Water

- Critical Period Planning- Demand Estimate per

General Plan Update (1989)- Water Conservation savings

of 1500 AFY planned

LTWSP Water Supply(AF of Capacity)

Cachuma8277 AF

Gibraltar6000 AF

Groundwater4150 AF

State Water3000 AF

Recycled800 AF

Desalination3125 AF

Chart2

Cachuma8277 AF
Gibraltar6000 AF
Groundwater4150 AF
State Water3000 AF
Recycled800 AF
Desalination3125 AF
Current
LTWSP Water Supply(AF of Capacity)
8577
6000
4150
800
3000
3125

ltwspCht

ampA
Page ampP
Recycled
Cachuma
Gib etc
SWP
GW
Desal
Shortage
Water Supply (AF)
Figure 1 Long-Term Water Supply ProgramUpdated to include surchararge fish releases and 1990 drought
900
82773366
6366
23566634
300
900
82773366
5865
2400
7576634
900
82773366
5560
2400
10626634
900
82773366
5483
2400
11396634
900
82773366
5931
27916634
300
900
82773366
5829
28936634
300
900
82773366
5494
1500
20286634
900
82773366
5294
1290
24386634
900
82773366
5406
1740
18766634
900
82773366
5643
2550
8296634
900
82773366
5548
2580
8946634
900
82773366
5425
1680
19176634
900
8231514135
5330
1710
2028485865
900
7305562347
4673246
1260
4061191653
900
7856777469
471278
1320
3410442531
900
82773366
5451
1140
24316634
900
82773366
5347
990
26856634
900
82773366
5528
1950
15446634
900
82773366
5544
2460
10186634
900
82773366
5797
2220
10056634
900
82773366
6110
26126634
300
900
82773366
5914
2640
4686634
900
82773366
5586
2460
9766634
900
82773366
6405
23176634
300
900
82773366
6250
24726634
300
900
82773366
6189
25336634
300
900
82773366
6084
26386634
300
900
82773366
5804
2700
5186634
900
82773366
5630
2640
7526634
900
82773366
5427
2250
13456634
900
82773366
5236
2010
17766634
900
7855786017
2020508
1950
4500
974
900
6759906438
3335608
2010
4500
694485562
900
547040079
500
2640
4500
3000
1189893227
900
7545802755
441926
2880
300
2155
900
82773366
5700
2700
300
323
900
82773366
5494
2490
300
739
900
82773366
5431
2070
300
1222
900
8233699836
5462
2700
904300164
900
7520604423
5411
2640
1728395577
900
787483284
5997
2700
72816716
900
82773366
5921
2640
4616634
900
82773366
5497
1890
16356634
900
82773366
4178353
1830
30143104
900
82773366
4147065
2340
25355984
900
82773366
5537
2820
6656634
900
82773366
5327
2640
10556634
900
8080887468
5309
2460
1450112532
900
8219636025
5639
2880
561363975
900
82773366
5896
28266634
300
900
82773366
5675
2670
6776634
900
82773366
6326
23966634
300
900
82773366
6036
2670
3166634
900
82773366
5733
2820
4696634
900
82773366
5443
2640
9396634
900
82773366
5747
2460
8156634
900
82773366
5785
2820
4176634
900
82773366
5742
2880
4006634
900
82773366
5515
2640
8676634
900
82773366
5279
990
27536634
900
82773366
6052
2040
9306634
900
82773366
6171
2550
3016634
900
82773366
6188
2460
3746634
900
82773366
6145
2490
3876634
900
82773366
5988
27346634
300
900
82773366
6955
17676634
300
900
82773366
6304
24186634
300
900
82773366
5851
28716634
300
900
82773366
5703
2430
8896634
900
82773366
5321
2070
16316634
900
82773366
5858
1290
18746634
900
7990356312
5641
1740
1928643688
900
6885154509
2170335
1380
4500
2364510491
900
682933383
271296
870
4500
238770617
900
7997267505
5860
930
300
2213
900
82773366
6866
18566634
300

LTWSP2002

LTWSP2002 (coincide)

Text of Accompanying Email

Chart1

Maximum Capacity (AF)
8277
5000
1000
3000
4150
800
300
3125

Pie Chart Data

Pie Chart Data

Cachuma8277 AF
Gibraltar6000 AF
Groundwater4150 AF
State Water3000 AF
Recycled800 AF
Desalination3125 AF
Current
Current Water Supply(AF of Capacity)
Gibraltar7400 AF
Cachuma9700 AF
Groundwater4500 AF
1980s
1980s Water Supply(AF of Capacity)

SantaBarbaraCAgovWater6

City of Santa Barbara Water Demand(Acre Feet of Production by Calendar Year - Potable + Recycled)

0

2500

5000

7500

10000

12500

15000

17500

20000

1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010

Figure ___

Total System Production (AF)

12 Months Ending

13374

February 28 2011

Post-DroughtPre-Drought Drought

SantaBarbaraCAgovWater7

Water Supplies - Cachumabull Primary City

Water Supply

bull Multi-Year SourceA few dry years notan issue

bull 8277 AFYCurrent Entitlement

bull 7863 AFYProjected Entitlement (2030)

SantaBarbaraCAgovWater8

Water Supplies - Cachuma

0

50000

100000

150000

200000

250000

1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011Water Year

Historical StorageVolumes1987-1993 Period

Recent History of Lake Cachuma Storage Levels (AF)With 1987-1993 Period Shown for Comparison

Figure ____

SantaBarbaraCAgovWater9

Water Supplies - Gibraltarbull ldquoPass Throughrdquo

implementationin progress

bull Modelingunder review

bull Conservative planning assumptions used pending modeling results

bull Sedimentation management study planned

SantaBarbaraCAgovWater10

Water Supplies ndash Mission Tunnelbull Infiltration from

percolating groundwateron both sides of themountain

bull Supply ranges from500 to 2375 AFY

bull Average contribution1125 AFY

SantaBarbaraCAgovWater11

Water Supplies ndash State Waterbull A small but useful part of our water

supply

bull Both the water amp the pipeline have value

bull Cityrsquos maximum delivery amount - 3300 AFY

bull Deliveries subject to availability

SantaBarbaraCAgovWater12

Water Supplies ndash State Waterbull Projections based on DWR

modeling using long-term databull No Delta or storage

improvementsbull Environmental limits remain in

effectbull Climate change effects assumed

SantaBarbaraCAgovWater13

Water Supplies - Groundwater

SantaBarbaraCAgovWater14

Water Supplies ndash Groundwaterbull Pumping occurs in

Downtown amp OuterState Street areas

bull 1300 AFY safe yieldbull Average City pumping

assumed at ~1100 AFYbull Maximum of 4150 AFY during drought

Ortega Groundwater Treatment Plant

SantaBarbaraCAgovWater15

Water Supplies ndash Recycled WaterRecycled Water Distribution System

SantaBarbaraCAgovWater16

Water Supplies ndash Recycled Waterbull Displaces use of potable

water amp extends water supplybull Current connected

demand 800 AFYbull 300 AFY potential demand amp capacity identifiedbull Target demand 1100 AFYbull Blending an economical solution for reducing mineral

contentbull Policy issues related to blending

SantaBarbaraCAgovWater17

Water Supplies ndash Recycled Water

SantaBarbaraCAgovWater18

Recycled Water Blending bull Filterability (turbidity) - solution identifiedbull Mineral Content (salts) separate issue -

- Blending $180AF added operating cost- MFRO $341AF added cost + $46 million

capitalbull Proposed Policy ldquoContingency Plan to

eliminate blending with goal to be ready to implement plan based on economic regulatory or water supply requirementsrdquo

SantaBarbaraCAgovWater19

Water Supplies - Desalination

bull Reliable butexpensive source

bull $177 million toreactivate if needed

bull Important to keepfor use in case ofextended drought

bull Proposed Planning Goal Avoid use until year six of Critical Drought Period

SantaBarbaraCAgovWater20

Demand Managementbull Declining demand

- Best Management Practices (CUWCC)- Conservation Program- 20 x 2020- Plumbing Code amp Appliance Standards

bull Projected development - 800 to 900 AFY bull Water Conservation Technical Evaluation

SantaBarbaraCAgovWater21

Demand Projections

12000

12500

13000

13500

14000

14500

15000

2010 2012 2014 2016 2018 2020 2022 2024 2026 2028 2030

Plan SB Demand (No Plumbing Code or Conservation Effects)Plumbing Code Effects OnlyPlumbing Code + Program B20 X 2020 Trend Line20 X 2020 Regulatory Limit

Water System Demand Projections (AFY)

SantaBarbaraCAgovWater22

Water Supply Planning Target

Projected Demand 14000Safety Margin (10) + 1400

Water Supply Target = 15400 AFY

SantaBarbaraCAgovWater23

Water Supply Planning Conceptsbull Planning for 6-Year Critical Drought Periodbull Water Supply Modeling - Using Historical

Data with Current Water Supply Sources and Projected Demands

bull Ongoing Conservation vs Short Term Planned Demand Reductions for Extraordinary Situations

SantaBarbaraCAgovWater24

Water Supply Performance

SantaBarbaraCAgovWater25

SantaBarbaraCAgovWater26

SantaBarbaraCAgovWater27

SantaBarbaraCAgovWater28

Key Policy Issuesbull Achieve 20 x 2020 through BMPs Additional

Conservation Measures amp Recycled Waterbull Planning for a 6-Year Duration Critical Drought

- Manage supplies to avoid use of Desal until year six- Water Banking Purchases- Planned Demand Reductions 10 to 15- Recycled Water Expansion

bull Recycled Water Blending bull Sedimentation Management

SantaBarbaraCAgovWater29

Next Stepsbull Finalize updated Long-Term Water

Supply Plan- April 11 Final Comments from Water

Commission- Environmental Review

bull Prepare Urban Water Management Plan Update per State Requirements

bull Target Adoption Date for LTWSP amp UWMP - June 14 2011

SantaBarbaraCAgovWater30

Discussion amp Feedback

SantaBarbaraCAgovWater31

SantaBarbaraCAgovWater32

SantaBarbaraCAgovWater33

SantaBarbaraCAgovWater34

SantaBarbaraCAgovWater35

SantaBarbaraCAgovWater36

Upper Santa Ynez River Operations Agreement(ldquoPass Through Agreementrdquo)

SantaBarbaraCAgovWater37

Context of 1989 Agreementbull City water supply shortage identified ndash Gibraltar

vulnerable to siltation

bull Solution Raise Gibraltar Dam 20rsquo to 40rsquo

bull Challenges by downstream and environmental interests

bull Cachuma enlargement under consideration

SantaBarbaraCAgovWater38

Parties to the Agreement

bull City of Santa Barbarabull Carpinteria Valley Water Districtbull Goleta Water Districtbull Montecito Water Districtbull Santa Ynez River Water Conservation Districtbull SYRWCD Improvement District No 1

Consent and Acknowledgement by US Bureau of Reclamation

SantaBarbaraCAgovWater39

Pass Through Summer no inflow

Current volume (reflects on-going siltation since 1988)

1988 Reservoir volume

Note different siltation levels

SantaBarbaraCAgovWater40

Smaller Reservoir Spills Sooner1988 Reservoir volume

Current Reservoir volume

SantaBarbaraCAgovWater41

Difference is Stored in Cachuma as Gibraltar WaterBase Reservoir

Actual Reservoir

SantaBarbaraCAgovWater42

  • Long Term Water Supply Plan Adaptive Management
  • Overview
  • Historical Background
  • Historical Background
  • Historical Background
  • Slide Number 6
  • Water Supplies - Cachuma
  • Water Supplies - Cachuma
  • Water Supplies - Gibraltar
  • Water Supplies ndash Mission Tunnel
  • Water Supplies ndash State Water
  • Water Supplies ndash State Water
  • Water Supplies - Groundwater
  • Water Supplies ndash Groundwater
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Recycled Water Blending
  • Water Supplies - Desalination
  • Demand Management
  • Demand Projections
  • Water Supply Planning Target
  • Water Supply Planning Concepts
  • Water Supply Performance
  • Slide Number 25
  • Slide Number 26
  • Slide Number 27
  • Key Policy Issues
  • Next Steps
  • Discussion amp Feedback
  • Slide Number 31
  • Slide Number 32
  • Slide Number 33
  • Slide Number 34
  • Slide Number 35
  • Slide Number 36
  • Context of 1989 Agreement
  • Parties to the Agreement
  • Pass Through Summer no inflow
  • Smaller Reservoir Spills Sooner
  • Difference is Stored in Cachuma as Gibraltar Water
  • Slide Number 42
Detailed Simple
Maximum Capacity () Maximum Capacity (AF) 1980s Current
Lake Cachuma 32 8277 Cachuma 9700 8577
Gibraltar Reservoir 19 5000 Gibraltar 7400 6000
Mission Tunnel 4 1000 Groundwater 4500 4150
State Water Project 12 3000 Recycled Water 800
Groundwater 16 4150 State Water 3000
Recycled Water 3 800 Desalination 3125
Montecito Transfer 1 300 Totals 21600 25652
Desalination 12 3125
100 25652
Lake Cachuma
Gibraltar Reservoir
Mission Tunnel
State Water Project
Groundwater
Recycled Water
Montecito Transfer
Desalination
In our review of the FMP EIREIS we had a small discussion on how to characterize our water supplies in particular State Water In that discussion I commented that the average State Water delivery did not apply to how we did our water supply planning a
The supply target in this analysis is 18200 AFY with a goal of having no shortage greater than 1820 (10) in any year The critical year is 1951 This supply target was developed for us by our Community Development Department for the LTWSP and include
The Cityrsquos supply strategy as modeled is to
use all surface water supply first with a minimum (300 AFY) amount of local groundwater
use available State Water to get us to the supply target
if enough State Water is not available meet the supply target with local groundwater up to 4500 AFY
if that is not enough turn on the desal plant with a goal of having no shortage greater than 1820 AFY in the critical year
The modeling results presented in the first spreadsheet page (LTWSP2002) and the chart shows that our supplies meet the overall production target and satisfy the goal of having a shortage less than 10 in the critical year
In this analysis State Water is an important element in meeting the annual target and the critical year shortage goal The average delivery of State Water is meaningless in this analysis Also with the Cityrsquos approach our average delivery of State Wat
Another important consideration is that the estimates of State Water deliveries based on history result in historical critical periods for the Santa Ynez River and the State Water Project not coinciding I think it is acceptable for one to do this analys
I am not sure where this leaves us with respect to what we put in the FMP EISEIR for our individual water supplies For the City of Santa Barbara input I can give John Gray the bottom line of the spreadsheet with our averages for the 76 year period T
One value of the Cityrsquos approach is that it gives some meaning to the shortages that would happen (or at least are modeled to happen) if the surcharge is not included or other changes to Cachuma Project yield are suggested Our goal again is a shortage
LONG TERM WATER SUPPLY PROGRAM SUPPLY SCENARIO
As estimated by the Santa Ynez River Hydrology Model using 3 ft surcharge and BO fish releases
State Water critical period is moved to coincide with Cachuma critical period
Water Conservation and GW recharge is left out of this version
Includes ground water recovery and 10 safety margin values in acre feet production is 18200 AFY
Filename=LTWSP2002xls SWP
Year Cachuma Desal SWP GibJun GW Recycled Total Shortage
1918 8277 2357 6366 300 900 18200 14300 80
1919 8277 2400 5865 758 900 18200 14300 80
1920 8277 2400 5560 1063 900 18200 14300 80
1921 8277 2400 5483 1140 900 18200 14300 80
1922 8277 2792 5931 300 900 18200 14300 94 094
1923 8277 2894 5829 300 900 18200 14300 99 099
1924 8277 1500 5494 2029 900 18200 14300 50 05
1925 8277 1290 5294 2439 900 18200 14300 43 043
1926 8277 1740 5406 1877 900 18200 14300 58 058
1927 8277 2550 5643 830 900 18200 14300 85 085
1928 8277 2580 5548 895 900 18200 14300 86 086
1929 8277 1680 5425 1918 900 18200 14300 56 056
1930 8232 2250 5330 1488 900 18200 14300 75 057
1931 7306 2010 4673 3311 900 18200 14300 67 042
1932 7857 1950 4713 2780 900 18200 14300 65 044
1933 8277 2010 5451 1562 900 18200 14300 67 038
1934 8277 2640 5347 1036 900 18200 14300 88 033
1935 8277 1950 5528 1545 900 18200 14300 65 065
1936 8277 2460 5544 1019 900 18200 14300 82 082
1937 8277 2220 5797 1006 900 18200 14300 74 074
1938 8277 2613 6110 300 900 18200 14300 94 094
1939 8277 2640 5914 469 900 18200 14300 88 088
1940 8277 2460 5586 977 900 18200 14300 82 082
1941 8277 2318 6405 300 900 18200 14300 97 097
1942 8277 2473 6250 300 900 18200 14300 100 1
1943 8277 2534 6189 300 900 18200 14300 89 089
1944 8277 2639 6084 300 900 18200 14300 92 092
1945 8277 2700 5804 519 900 18200 14300 90 09
1946 8277 2640 5630 753 900 18200 14300 88 088
1947 8277 1710 5427 1886 900 18200 14300 57 075
1948 8277 1260 5236 2527 900 18200 14300 42 067
1949 7856 1604 1320 2021 4500 900 18200 -0 14300 44 065
1950 6760 1564 1140 3336 4500 900 18200 0 14300 38 067
1951 5470 3000 990 500 4500 900 15360 2840 01560380894 14300 33 088
1952 7546 2155 2880 4419 300 900 18200 14300 96 096
1953 8277 323 2700 5700 300 900 18200 14300 90 09
1954 8277 739 2490 5494 300 900 18200 14300 83 083
1955 8277 1222 2070 5431 300 900 18200 14300 69 069
1956 8234 2700 5462 904 900 18200 14300 90 09
1957 7521 2640 5411 1728 900 18200 14300 88 088
1958 7875 2700 5997 728 900 18200 14300 90 09
1959 8277 2640 5921 462 900 18200 14300 88 088
1960 8277 1890 5497 1636 900 18200 14300 63 063
1961 8277 1830 4178 3014 900 18200 14300 61 061
1962 8277 2340 4147 2536 900 18200 14300 78 078
1963 8277 2820 5537 666 900 18200 14300 94 094
1964 8277 2640 5327 1056 900 18200 14300 88 088
1965 8081 2460 5309 1450 900 18200 14300 82 082
1966 8220 2880 5639 561 900 18200 14300 96 096
1967 8277 2827 5896 300 900 18200 14300 96 096
1968 8277 2670 5675 678 900 18200 14300 89 089
1969 8277 2397 6326 300 900 18200 14300 93 093
1970 8277 2670 6036 317 900 18200 14300 89 089
1971 8277 2820 5733 470 900 18200 14300 94 094
1972 8277 2640 5443 940 900 18200 14300 88 088
1973 8277 2460 5747 816 900 18200 14300 82 082
1974 8277 2820 5785 418 900 18200 14300 94 094
1975 8277 2880 5742 401 900 18200 14300 96 096
1976 8277 2640 5515 868 900 18200 14300 88 088
1977 8277 990 5279 2754 900 18200 14300 33 033
1978 8277 2040 6052 931 900 18200 14300 68 068
1979 8277 2550 6171 302 900 18200 14300 85 085
1980 8277 2460 6188 375 900 18200 14300 82 082
1981 8277 2490 6145 388 900 18200 14300 83 083
1982 8277 2735 5988 300 900 18200 14300 94 094
1983 8277 1768 6955 300 900 18200 14300 100 1
1984 8277 2419 6304 300 900 18200 14300 100 1
1985 8277 2872 5851 300 900 18200 14300 96 096
1986 8277 2430 5703 890 900 18200 14300 81 081
1987 8277 2070 5321 1632 900 18200 14300 69 069
1988 8277 1290 5858 1875 900 18200 14300 43 043
1989 7990 1740 5641 1929 900 18200 14300 58 058
1990 6885 2365 1380 2170 4500 900 18200 14300 46 046
1991 6829 2388 870 2713 4500 900 18200 14300 29 029
1992 7997 2213 930 5860 300 900 18200 14300 31 031
1993 8277 1857 6866 300 900 18200 14300 76 076
Average 8122 231 2249 5436 1224 900 18163 769342 088
2241
7470
163592
LONG TERM WATER SUPPLY PROGRAM SUPPLY SCENARIO
As estimated by the Santa Ynez River Hydrology Model using 3 ft surcharge and BO fish releases
State Water deliveries are based on delivery estimates provided by CCWA in 2001
Water Conservation and GW recharge is left out of this version
Includes ground water recovery and 10 safety margin values in acre feet production is 18200 AFY
Filename=LTWSP2002xls SWP
Year Cachuma Desal SWP GibJun GW Recycled Total Shortage
1918 8277 2357 6366 300 900 18200 14300 80
1919 8277 2400 5865 758 900 18200 14300 80
1920 8277 2400 5560 1063 900 18200 14300 80
1921 8277 2400 5483 1140 900 18200 14300 80
1922 8277 2792 5931 300 900 18200 14300 94 094
1923 8277 2894 5829 300 900 18200 14300 99 099
1924 8277 1500 5494 2029 900 18200 14300 50 05
1925 8277 1290 5294 2439 900 18200 14300 43 043
1926 8277 1740 5406 1877 900 18200 14300 58 058
1927 8277 2550 5643 830 900 18200 14300 85 085
1928 8277 2580 5548 895 900 18200 14300 86 086
1929 8277 1680 5425 1918 900 18200 14300 56 056
1930 8232 1710 5330 2028 900 18200 14300 57 057
1931 7306 1260 4673 4061 900 18200 14300 42 042
1932 7857 1320 4713 3410 900 18200 14300 44 044
1933 8277 1140 5451 2432 900 18200 14300 38 038
1934 8277 990 5347 2686 900 18200 14300 33 033
1935 8277 1950 5528 1545 900 18200 14300 65 065
1936 8277 2460 5544 1019 900 18200 14300 82 082
1937 8277 2220 5797 1006 900 18200 14300 74 074
1938 8277 2613 6110 300 900 18200 14300 94 094
1939 8277 2640 5914 469 900 18200 14300 88 088
1940 8277 2460 5586 977 900 18200 14300 82 082
1941 8277 2318 6405 300 900 18200 14300 97 097
1942 8277 2473 6250 300 900 18200 14300 100 1
1943 8277 2534 6189 300 900 18200 14300 89 089
1944 8277 2639 6084 300 900 18200 14300 92 092
1945 8277 2700 5804 519 900 18200 14300 90 09
1946 8277 2640 5630 753 900 18200 14300 88 088
1947 8277 2250 5427 1346 900 18200 14300 75 075
1948 8277 2010 5236 1777 900 18200 14300 67 067
1949 7856 974 1950 2021 4500 900 18200 14300 65 065
1950 6760 694 2010 3336 4500 900 18200 14300 67 067
1951 5470 3000 2640 500 4500 900 17010 1190 00653787487 14300 88 088
1952 7546 2155 2880 4419 300 900 18200 14300 96 096
1953 8277 323 2700 5700 300 900 18200 14300 90 09
1954 8277 739 2490 5494 300 900 18200 14300 83 083
1955 8277 1222 2070 5431 300 900 18200 14300 69 069
1956 8234 2700 5462 904 900 18200 14300 90 09
1957 7521 2640 5411 1728 900 18200 14300 88 088
1958 7875 2700 5997 728 900 18200 14300 90 09
1959 8277 2640 5921 462 900 18200 14300 88 088
1960 8277 1890 5497 1636 900 18200 14300 63 063
1961 8277 1830 4178 3014 900 18200 14300 61 061
1962 8277 2340 4147 2536 900 18200 14300 78 078
1963 8277 2820 5537 666 900 18200 14300 94 094
1964 8277 2640 5327 1056 900 18200 14300 88 088
1965 8081 2460 5309 1450 900 18200 14300 82 082
1966 8220 2880 5639 561 900 18200 14300 96 096
1967 8277 2827 5896 300 900 18200 14300 96 096
1968 8277 2670 5675 678 900 18200 14300 89 089
1969 8277 2397 6326 300 900 18200 14300 93 093
1970 8277 2670 6036 317 900 18200 14300 89 089
1971 8277 2820 5733 470 900 18200 14300 94 094
1972 8277 2640 5443 940 900 18200 14300 88 088
1973 8277 2460 5747 816 900 18200 14300 82 082
1974 8277 2820 5785 418 900 18200 14300 94 094
1975 8277 2880 5742 401 900 18200 14300 96 096
1976 8277 2640 5515 868 900 18200 14300 88 088
1977 8277 990 5279 2754 900 18200 14300 33 033
1978 8277 2040 6052 931 900 18200 14300 68 068
1979 8277 2550 6171 302 900 18200 14300 85 085
1980 8277 2460 6188 375 900 18200 14300 82 082
1981 8277 2490 6145 388 900 18200 14300 83 083
1982 8277 2735 5988 300 900 18200 14300 94 094
1983 8277 1768 6955 300 900 18200 14300 100 1
1984 8277 2419 6304 300 900 18200 14300 100 1
1985 8277 2872 5851 300 900 18200 14300 96 096
1986 8277 2430 5703 890 900 18200 14300 81 081
1987 8277 2070 5321 1632 900 18200 14300 69 069
1988 8277 1290 5858 1875 900 18200 14300 43 043
1989 7990 1740 5641 1929 900 18200 14300 58 058
1990 6885 2365 1380 2170 4500 900 18200 14300 46 046
1991 6829 2388 870 2713 4500 900 18200 14300 29 029
1992 7997 2213 930 5860 300 900 18200 14300 31 031
1993 8277 1857 6866 300 900 18200 14300 76 076
Average 8122 211 2249 5436 1266 900 18184 769342 088
2241
7470
163592
1918 1918 1918 1918 1918 1918 1918
1919 1919 1919 1919 1919 1919 1919
1920 1920 1920 1920 1920 1920 1920
1921 1921 1921 1921 1921 1921 1921
1922 1922 1922 1922 1922 1922 1922
1923 1923 1923 1923 1923 1923 1923
1924 1924 1924 1924 1924 1924 1924
1925 1925 1925 1925 1925 1925 1925
1926 1926 1926 1926 1926 1926 1926
1927 1927 1927 1927 1927 1927 1927
1928 1928 1928 1928 1928 1928 1928
1929 1929 1929 1929 1929 1929 1929
1930 1930 1930 1930 1930 1930 1930
1931 1931 1931 1931 1931 1931 1931
1932 1932 1932 1932 1932 1932 1932
1933 1933 1933 1933 1933 1933 1933
1934 1934 1934 1934 1934 1934 1934
1935 1935 1935 1935 1935 1935 1935
1936 1936 1936 1936 1936 1936 1936
1937 1937 1937 1937 1937 1937 1937
1938 1938 1938 1938 1938 1938 1938
1939 1939 1939 1939 1939 1939 1939
1940 1940 1940 1940 1940 1940 1940
1941 1941 1941 1941 1941 1941 1941
1942 1942 1942 1942 1942 1942 1942
1943 1943 1943 1943 1943 1943 1943
1944 1944 1944 1944 1944 1944 1944
1945 1945 1945 1945 1945 1945 1945
1946 1946 1946 1946 1946 1946 1946
1947 1947 1947 1947 1947 1947 1947
1948 1948 1948 1948 1948 1948 1948
1949 1949 1949 1949 1949 1949 1949
1950 1950 1950 1950 1950 1950 1950
1951 1951 1951 1951 1951 1951 1951
1952 1952 1952 1952 1952 1952 1952
1953 1953 1953 1953 1953 1953 1953
1954 1954 1954 1954 1954 1954 1954
1955 1955 1955 1955 1955 1955 1955
1956 1956 1956 1956 1956 1956 1956
1957 1957 1957 1957 1957 1957 1957
1958 1958 1958 1958 1958 1958 1958
1959 1959 1959 1959 1959 1959 1959
1960 1960 1960 1960 1960 1960 1960
1961 1961 1961 1961 1961 1961 1961
1962 1962 1962 1962 1962 1962 1962
1963 1963 1963 1963 1963 1963 1963
1964 1964 1964 1964 1964 1964 1964
1965 1965 1965 1965 1965 1965 1965
1966 1966 1966 1966 1966 1966 1966
1967 1967 1967 1967 1967 1967 1967
1968 1968 1968 1968 1968 1968 1968
1969 1969 1969 1969 1969 1969 1969
1970 1970 1970 1970 1970 1970 1970
1971 1971 1971 1971 1971 1971 1971
1972 1972 1972 1972 1972 1972 1972
1973 1973 1973 1973 1973 1973 1973
1974 1974 1974 1974 1974 1974 1974
1975 1975 1975 1975 1975 1975 1975
1976 1976 1976 1976 1976 1976 1976
1977 1977 1977 1977 1977 1977 1977
1978 1978 1978 1978 1978 1978 1978
1979 1979 1979 1979 1979 1979 1979
1980 1980 1980 1980 1980 1980 1980
1981 1981 1981 1981 1981 1981 1981
1982 1982 1982 1982 1982 1982 1982
1983 1983 1983 1983 1983 1983 1983
1984 1984 1984 1984 1984 1984 1984
1985 1985 1985 1985 1985 1985 1985
1986 1986 1986 1986 1986 1986 1986
1987 1987 1987 1987 1987 1987 1987
1988 1988 1988 1988 1988 1988 1988
1989 1989 1989 1989 1989 1989 1989
1990 1990 1990 1990 1990 1990 1990
1991 1991 1991 1991 1991 1991 1991
1992 1992 1992 1992 1992 1992 1992
1993 1993 1993 1993 1993 1993 1993
Cachuma
Gibraltar
Groundwater
Recycled Water
State Water
Desalination
Detailed Simple
Maximum Capacity () Maximum Capacity (AF) 1980s Current
Lake Cachuma 32 8277 Cachuma 9700 8577
Gibraltar Reservoir 19 5000 Gibraltar 7400 6000
Mission Tunnel 4 1000 Groundwater 4500 4150
State Water Project 12 3000 Recycled Water 800
Groundwater 16 4150 State Water 3000
Recycled Water 3 800 Desalination 3125
Montecito Transfer 1 300 Totals 21600 25652
Desalination 12 3125
100 25652
Lake Cachuma
Gibraltar Reservoir
Mission Tunnel
State Water Project
Groundwater
Recycled Water
Montecito Transfer
Desalination
In our review of the FMP EIREIS we had a small discussion on how to characterize our water supplies in particular State Water In that discussion I commented that the average State Water delivery did not apply to how we did our water supply planning a
The supply target in this analysis is 18200 AFY with a goal of having no shortage greater than 1820 (10) in any year The critical year is 1951 This supply target was developed for us by our Community Development Department for the LTWSP and include
The Cityrsquos supply strategy as modeled is to
use all surface water supply first with a minimum (300 AFY) amount of local groundwater
use available State Water to get us to the supply target
if enough State Water is not available meet the supply target with local groundwater up to 4500 AFY
if that is not enough turn on the desal plant with a goal of having no shortage greater than 1820 AFY in the critical year
The modeling results presented in the first spreadsheet page (LTWSP2002) and the chart shows that our supplies meet the overall production target and satisfy the goal of having a shortage less than 10 in the critical year
In this analysis State Water is an important element in meeting the annual target and the critical year shortage goal The average delivery of State Water is meaningless in this analysis Also with the Cityrsquos approach our average delivery of State Wat
Another important consideration is that the estimates of State Water deliveries based on history result in historical critical periods for the Santa Ynez River and the State Water Project not coinciding I think it is acceptable for one to do this analys
I am not sure where this leaves us with respect to what we put in the FMP EISEIR for our individual water supplies For the City of Santa Barbara input I can give John Gray the bottom line of the spreadsheet with our averages for the 76 year period T
One value of the Cityrsquos approach is that it gives some meaning to the shortages that would happen (or at least are modeled to happen) if the surcharge is not included or other changes to Cachuma Project yield are suggested Our goal again is a shortage
LONG TERM WATER SUPPLY PROGRAM SUPPLY SCENARIO
As estimated by the Santa Ynez River Hydrology Model using 3 ft surcharge and BO fish releases
State Water critical period is moved to coincide with Cachuma critical period
Water Conservation and GW recharge is left out of this version
Includes ground water recovery and 10 safety margin values in acre feet production is 18200 AFY
Filename=LTWSP2002xls SWP
Year Cachuma Desal SWP GibJun GW Recycled Total Shortage
1918 8277 2357 6366 300 900 18200 14300 80
1919 8277 2400 5865 758 900 18200 14300 80
1920 8277 2400 5560 1063 900 18200 14300 80
1921 8277 2400 5483 1140 900 18200 14300 80
1922 8277 2792 5931 300 900 18200 14300 94 094
1923 8277 2894 5829 300 900 18200 14300 99 099
1924 8277 1500 5494 2029 900 18200 14300 50 05
1925 8277 1290 5294 2439 900 18200 14300 43 043
1926 8277 1740 5406 1877 900 18200 14300 58 058
1927 8277 2550 5643 830 900 18200 14300 85 085
1928 8277 2580 5548 895 900 18200 14300 86 086
1929 8277 1680 5425 1918 900 18200 14300 56 056
1930 8232 2250 5330 1488 900 18200 14300 75 057
1931 7306 2010 4673 3311 900 18200 14300 67 042
1932 7857 1950 4713 2780 900 18200 14300 65 044
1933 8277 2010 5451 1562 900 18200 14300 67 038
1934 8277 2640 5347 1036 900 18200 14300 88 033
1935 8277 1950 5528 1545 900 18200 14300 65 065
1936 8277 2460 5544 1019 900 18200 14300 82 082
1937 8277 2220 5797 1006 900 18200 14300 74 074
1938 8277 2613 6110 300 900 18200 14300 94 094
1939 8277 2640 5914 469 900 18200 14300 88 088
1940 8277 2460 5586 977 900 18200 14300 82 082
1941 8277 2318 6405 300 900 18200 14300 97 097
1942 8277 2473 6250 300 900 18200 14300 100 1
1943 8277 2534 6189 300 900 18200 14300 89 089
1944 8277 2639 6084 300 900 18200 14300 92 092
1945 8277 2700 5804 519 900 18200 14300 90 09
1946 8277 2640 5630 753 900 18200 14300 88 088
1947 8277 1710 5427 1886 900 18200 14300 57 075
1948 8277 1260 5236 2527 900 18200 14300 42 067
1949 7856 1604 1320 2021 4500 900 18200 -0 14300 44 065
1950 6760 1564 1140 3336 4500 900 18200 0 14300 38 067
1951 5470 3000 990 500 4500 900 15360 2840 01560380894 14300 33 088
1952 7546 2155 2880 4419 300 900 18200 14300 96 096
1953 8277 323 2700 5700 300 900 18200 14300 90 09
1954 8277 739 2490 5494 300 900 18200 14300 83 083
1955 8277 1222 2070 5431 300 900 18200 14300 69 069
1956 8234 2700 5462 904 900 18200 14300 90 09
1957 7521 2640 5411 1728 900 18200 14300 88 088
1958 7875 2700 5997 728 900 18200 14300 90 09
1959 8277 2640 5921 462 900 18200 14300 88 088
1960 8277 1890 5497 1636 900 18200 14300 63 063
1961 8277 1830 4178 3014 900 18200 14300 61 061
1962 8277 2340 4147 2536 900 18200 14300 78 078
1963 8277 2820 5537 666 900 18200 14300 94 094
1964 8277 2640 5327 1056 900 18200 14300 88 088
1965 8081 2460 5309 1450 900 18200 14300 82 082
1966 8220 2880 5639 561 900 18200 14300 96 096
1967 8277 2827 5896 300 900 18200 14300 96 096
1968 8277 2670 5675 678 900 18200 14300 89 089
1969 8277 2397 6326 300 900 18200 14300 93 093
1970 8277 2670 6036 317 900 18200 14300 89 089
1971 8277 2820 5733 470 900 18200 14300 94 094
1972 8277 2640 5443 940 900 18200 14300 88 088
1973 8277 2460 5747 816 900 18200 14300 82 082
1974 8277 2820 5785 418 900 18200 14300 94 094
1975 8277 2880 5742 401 900 18200 14300 96 096
1976 8277 2640 5515 868 900 18200 14300 88 088
1977 8277 990 5279 2754 900 18200 14300 33 033
1978 8277 2040 6052 931 900 18200 14300 68 068
1979 8277 2550 6171 302 900 18200 14300 85 085
1980 8277 2460 6188 375 900 18200 14300 82 082
1981 8277 2490 6145 388 900 18200 14300 83 083
1982 8277 2735 5988 300 900 18200 14300 94 094
1983 8277 1768 6955 300 900 18200 14300 100 1
1984 8277 2419 6304 300 900 18200 14300 100 1
1985 8277 2872 5851 300 900 18200 14300 96 096
1986 8277 2430 5703 890 900 18200 14300 81 081
1987 8277 2070 5321 1632 900 18200 14300 69 069
1988 8277 1290 5858 1875 900 18200 14300 43 043
1989 7990 1740 5641 1929 900 18200 14300 58 058
1990 6885 2365 1380 2170 4500 900 18200 14300 46 046
1991 6829 2388 870 2713 4500 900 18200 14300 29 029
1992 7997 2213 930 5860 300 900 18200 14300 31 031
1993 8277 1857 6866 300 900 18200 14300 76 076
Average 8122 231 2249 5436 1224 900 18163 769342 088
2241
7470
163592
LONG TERM WATER SUPPLY PROGRAM SUPPLY SCENARIO
As estimated by the Santa Ynez River Hydrology Model using 3 ft surcharge and BO fish releases
State Water deliveries are based on delivery estimates provided by CCWA in 2001
Water Conservation and GW recharge is left out of this version
Includes ground water recovery and 10 safety margin values in acre feet production is 18200 AFY
Filename=LTWSP2002xls SWP
Year Cachuma Desal SWP GibJun GW Recycled Total Shortage
1918 8277 2357 6366 300 900 18200 14300 80
1919 8277 2400 5865 758 900 18200 14300 80
1920 8277 2400 5560 1063 900 18200 14300 80
1921 8277 2400 5483 1140 900 18200 14300 80
1922 8277 2792 5931 300 900 18200 14300 94 094
1923 8277 2894 5829 300 900 18200 14300 99 099
1924 8277 1500 5494 2029 900 18200 14300 50 05
1925 8277 1290 5294 2439 900 18200 14300 43 043
1926 8277 1740 5406 1877 900 18200 14300 58 058
1927 8277 2550 5643 830 900 18200 14300 85 085
1928 8277 2580 5548 895 900 18200 14300 86 086
1929 8277 1680 5425 1918 900 18200 14300 56 056
1930 8232 1710 5330 2028 900 18200 14300 57 057
1931 7306 1260 4673 4061 900 18200 14300 42 042
1932 7857 1320 4713 3410 900 18200 14300 44 044
1933 8277 1140 5451 2432 900 18200 14300 38 038
1934 8277 990 5347 2686 900 18200 14300 33 033
1935 8277 1950 5528 1545 900 18200 14300 65 065
1936 8277 2460 5544 1019 900 18200 14300 82 082
1937 8277 2220 5797 1006 900 18200 14300 74 074
1938 8277 2613 6110 300 900 18200 14300 94 094
1939 8277 2640 5914 469 900 18200 14300 88 088
1940 8277 2460 5586 977 900 18200 14300 82 082
1941 8277 2318 6405 300 900 18200 14300 97 097
1942 8277 2473 6250 300 900 18200 14300 100 1
1943 8277 2534 6189 300 900 18200 14300 89 089
1944 8277 2639 6084 300 900 18200 14300 92 092
1945 8277 2700 5804 519 900 18200 14300 90 09
1946 8277 2640 5630 753 900 18200 14300 88 088
1947 8277 2250 5427 1346 900 18200 14300 75 075
1948 8277 2010 5236 1777 900 18200 14300 67 067
1949 7856 974 1950 2021 4500 900 18200 14300 65 065
1950 6760 694 2010 3336 4500 900 18200 14300 67 067
1951 5470 3000 2640 500 4500 900 17010 1190 00653787487 14300 88 088
1952 7546 2155 2880 4419 300 900 18200 14300 96 096
1953 8277 323 2700 5700 300 900 18200 14300 90 09
1954 8277 739 2490 5494 300 900 18200 14300 83 083
1955 8277 1222 2070 5431 300 900 18200 14300 69 069
1956 8234 2700 5462 904 900 18200 14300 90 09
1957 7521 2640 5411 1728 900 18200 14300 88 088
1958 7875 2700 5997 728 900 18200 14300 90 09
1959 8277 2640 5921 462 900 18200 14300 88 088
1960 8277 1890 5497 1636 900 18200 14300 63 063
1961 8277 1830 4178 3014 900 18200 14300 61 061
1962 8277 2340 4147 2536 900 18200 14300 78 078
1963 8277 2820 5537 666 900 18200 14300 94 094
1964 8277 2640 5327 1056 900 18200 14300 88 088
1965 8081 2460 5309 1450 900 18200 14300 82 082
1966 8220 2880 5639 561 900 18200 14300 96 096
1967 8277 2827 5896 300 900 18200 14300 96 096
1968 8277 2670 5675 678 900 18200 14300 89 089
1969 8277 2397 6326 300 900 18200 14300 93 093
1970 8277 2670 6036 317 900 18200 14300 89 089
1971 8277 2820 5733 470 900 18200 14300 94 094
1972 8277 2640 5443 940 900 18200 14300 88 088
1973 8277 2460 5747 816 900 18200 14300 82 082
1974 8277 2820 5785 418 900 18200 14300 94 094
1975 8277 2880 5742 401 900 18200 14300 96 096
1976 8277 2640 5515 868 900 18200 14300 88 088
1977 8277 990 5279 2754 900 18200 14300 33 033
1978 8277 2040 6052 931 900 18200 14300 68 068
1979 8277 2550 6171 302 900 18200 14300 85 085
1980 8277 2460 6188 375 900 18200 14300 82 082
1981 8277 2490 6145 388 900 18200 14300 83 083
1982 8277 2735 5988 300 900 18200 14300 94 094
1983 8277 1768 6955 300 900 18200 14300 100 1
1984 8277 2419 6304 300 900 18200 14300 100 1
1985 8277 2872 5851 300 900 18200 14300 96 096
1986 8277 2430 5703 890 900 18200 14300 81 081
1987 8277 2070 5321 1632 900 18200 14300 69 069
1988 8277 1290 5858 1875 900 18200 14300 43 043
1989 7990 1740 5641 1929 900 18200 14300 58 058
1990 6885 2365 1380 2170 4500 900 18200 14300 46 046
1991 6829 2388 870 2713 4500 900 18200 14300 29 029
1992 7997 2213 930 5860 300 900 18200 14300 31 031
1993 8277 1857 6866 300 900 18200 14300 76 076
Average 8122 211 2249 5436 1266 900 18184 769342 088
2241
7470
163592
1918 1918 1918 1918 1918 1918 1918
1919 1919 1919 1919 1919 1919 1919
1920 1920 1920 1920 1920 1920 1920
1921 1921 1921 1921 1921 1921 1921
1922 1922 1922 1922 1922 1922 1922
1923 1923 1923 1923 1923 1923 1923
1924 1924 1924 1924 1924 1924 1924
1925 1925 1925 1925 1925 1925 1925
1926 1926 1926 1926 1926 1926 1926
1927 1927 1927 1927 1927 1927 1927
1928 1928 1928 1928 1928 1928 1928
1929 1929 1929 1929 1929 1929 1929
1930 1930 1930 1930 1930 1930 1930
1931 1931 1931 1931 1931 1931 1931
1932 1932 1932 1932 1932 1932 1932
1933 1933 1933 1933 1933 1933 1933
1934 1934 1934 1934 1934 1934 1934
1935 1935 1935 1935 1935 1935 1935
1936 1936 1936 1936 1936 1936 1936
1937 1937 1937 1937 1937 1937 1937
1938 1938 1938 1938 1938 1938 1938
1939 1939 1939 1939 1939 1939 1939
1940 1940 1940 1940 1940 1940 1940
1941 1941 1941 1941 1941 1941 1941
1942 1942 1942 1942 1942 1942 1942
1943 1943 1943 1943 1943 1943 1943
1944 1944 1944 1944 1944 1944 1944
1945 1945 1945 1945 1945 1945 1945
1946 1946 1946 1946 1946 1946 1946
1947 1947 1947 1947 1947 1947 1947
1948 1948 1948 1948 1948 1948 1948
1949 1949 1949 1949 1949 1949 1949
1950 1950 1950 1950 1950 1950 1950
1951 1951 1951 1951 1951 1951 1951
1952 1952 1952 1952 1952 1952 1952
1953 1953 1953 1953 1953 1953 1953
1954 1954 1954 1954 1954 1954 1954
1955 1955 1955 1955 1955 1955 1955
1956 1956 1956 1956 1956 1956 1956
1957 1957 1957 1957 1957 1957 1957
1958 1958 1958 1958 1958 1958 1958
1959 1959 1959 1959 1959 1959 1959
1960 1960 1960 1960 1960 1960 1960
1961 1961 1961 1961 1961 1961 1961
1962 1962 1962 1962 1962 1962 1962
1963 1963 1963 1963 1963 1963 1963
1964 1964 1964 1964 1964 1964 1964
1965 1965 1965 1965 1965 1965 1965
1966 1966 1966 1966 1966 1966 1966
1967 1967 1967 1967 1967 1967 1967
1968 1968 1968 1968 1968 1968 1968
1969 1969 1969 1969 1969 1969 1969
1970 1970 1970 1970 1970 1970 1970
1971 1971 1971 1971 1971 1971 1971
1972 1972 1972 1972 1972 1972 1972
1973 1973 1973 1973 1973 1973 1973
1974 1974 1974 1974 1974 1974 1974
1975 1975 1975 1975 1975 1975 1975
1976 1976 1976 1976 1976 1976 1976
1977 1977 1977 1977 1977 1977 1977
1978 1978 1978 1978 1978 1978 1978
1979 1979 1979 1979 1979 1979 1979
1980 1980 1980 1980 1980 1980 1980
1981 1981 1981 1981 1981 1981 1981
1982 1982 1982 1982 1982 1982 1982
1983 1983 1983 1983 1983 1983 1983
1984 1984 1984 1984 1984 1984 1984
1985 1985 1985 1985 1985 1985 1985
1986 1986 1986 1986 1986 1986 1986
1987 1987 1987 1987 1987 1987 1987
1988 1988 1988 1988 1988 1988 1988
1989 1989 1989 1989 1989 1989 1989
1990 1990 1990 1990 1990 1990 1990
1991 1991 1991 1991 1991 1991 1991
1992 1992 1992 1992 1992 1992 1992
1993 1993 1993 1993 1993 1993 1993
Page 6: PUBLIC WORKS DEPARTMENT WATER RESOURCES DIVISION …...mountain • Supply ranges from ... Water Supplies –State Water • A small, but useful part of our water supply • Both the

LTWSP2002

LTWSP2002 (coincide)

Text of Accompanying Email

Chart1

Maximum Capacity (AF)
8277
5000
1000
3000
4150
800
300
3125

Pie Chart Data

Pie Chart Data

Cachuma8277 AF
Gibraltar6000 AF
Groundwater4150 AF
State Water3000 AF
Recycled800 AF
Desalination3125 AF
Current
Current Water Supply(AF of Capacity)
Gibraltar7400 AF
Cachuma9700 AF
Groundwater4500 AF
1980s
1980s Water Supply(AF of Capacity)

SantaBarbaraCAgovWater4

Historical Backgroundbull Gibraltar Pass Through Agreement

(1989)- Gibraltar Enlargement Deferred- City to ldquoPass Throughrdquo Gibraltar

Water to Cachuma

bull 1987 ndash 1991 Drought - 50 Cutbacks Sought - State Water Bond Approval- Advisory Vote for Desal

Gibraltar Reservoir1989

SantaBarbaraCAgovWater5

Historical BackgroundLong-Term Water Supply Program (1994)

- Added Recycled WaterDesal amp State Water

- Critical Period Planning- Demand Estimate per

General Plan Update (1989)- Water Conservation savings

of 1500 AFY planned

LTWSP Water Supply(AF of Capacity)

Cachuma8277 AF

Gibraltar6000 AF

Groundwater4150 AF

State Water3000 AF

Recycled800 AF

Desalination3125 AF

Chart2

Cachuma8277 AF
Gibraltar6000 AF
Groundwater4150 AF
State Water3000 AF
Recycled800 AF
Desalination3125 AF
Current
LTWSP Water Supply(AF of Capacity)
8577
6000
4150
800
3000
3125

ltwspCht

ampA
Page ampP
Recycled
Cachuma
Gib etc
SWP
GW
Desal
Shortage
Water Supply (AF)
Figure 1 Long-Term Water Supply ProgramUpdated to include surchararge fish releases and 1990 drought
900
82773366
6366
23566634
300
900
82773366
5865
2400
7576634
900
82773366
5560
2400
10626634
900
82773366
5483
2400
11396634
900
82773366
5931
27916634
300
900
82773366
5829
28936634
300
900
82773366
5494
1500
20286634
900
82773366
5294
1290
24386634
900
82773366
5406
1740
18766634
900
82773366
5643
2550
8296634
900
82773366
5548
2580
8946634
900
82773366
5425
1680
19176634
900
8231514135
5330
1710
2028485865
900
7305562347
4673246
1260
4061191653
900
7856777469
471278
1320
3410442531
900
82773366
5451
1140
24316634
900
82773366
5347
990
26856634
900
82773366
5528
1950
15446634
900
82773366
5544
2460
10186634
900
82773366
5797
2220
10056634
900
82773366
6110
26126634
300
900
82773366
5914
2640
4686634
900
82773366
5586
2460
9766634
900
82773366
6405
23176634
300
900
82773366
6250
24726634
300
900
82773366
6189
25336634
300
900
82773366
6084
26386634
300
900
82773366
5804
2700
5186634
900
82773366
5630
2640
7526634
900
82773366
5427
2250
13456634
900
82773366
5236
2010
17766634
900
7855786017
2020508
1950
4500
974
900
6759906438
3335608
2010
4500
694485562
900
547040079
500
2640
4500
3000
1189893227
900
7545802755
441926
2880
300
2155
900
82773366
5700
2700
300
323
900
82773366
5494
2490
300
739
900
82773366
5431
2070
300
1222
900
8233699836
5462
2700
904300164
900
7520604423
5411
2640
1728395577
900
787483284
5997
2700
72816716
900
82773366
5921
2640
4616634
900
82773366
5497
1890
16356634
900
82773366
4178353
1830
30143104
900
82773366
4147065
2340
25355984
900
82773366
5537
2820
6656634
900
82773366
5327
2640
10556634
900
8080887468
5309
2460
1450112532
900
8219636025
5639
2880
561363975
900
82773366
5896
28266634
300
900
82773366
5675
2670
6776634
900
82773366
6326
23966634
300
900
82773366
6036
2670
3166634
900
82773366
5733
2820
4696634
900
82773366
5443
2640
9396634
900
82773366
5747
2460
8156634
900
82773366
5785
2820
4176634
900
82773366
5742
2880
4006634
900
82773366
5515
2640
8676634
900
82773366
5279
990
27536634
900
82773366
6052
2040
9306634
900
82773366
6171
2550
3016634
900
82773366
6188
2460
3746634
900
82773366
6145
2490
3876634
900
82773366
5988
27346634
300
900
82773366
6955
17676634
300
900
82773366
6304
24186634
300
900
82773366
5851
28716634
300
900
82773366
5703
2430
8896634
900
82773366
5321
2070
16316634
900
82773366
5858
1290
18746634
900
7990356312
5641
1740
1928643688
900
6885154509
2170335
1380
4500
2364510491
900
682933383
271296
870
4500
238770617
900
7997267505
5860
930
300
2213
900
82773366
6866
18566634
300

LTWSP2002

LTWSP2002 (coincide)

Text of Accompanying Email

Chart1

Maximum Capacity (AF)
8277
5000
1000
3000
4150
800
300
3125

Pie Chart Data

Pie Chart Data

Cachuma8277 AF
Gibraltar6000 AF
Groundwater4150 AF
State Water3000 AF
Recycled800 AF
Desalination3125 AF
Current
Current Water Supply(AF of Capacity)
Gibraltar7400 AF
Cachuma9700 AF
Groundwater4500 AF
1980s
1980s Water Supply(AF of Capacity)

SantaBarbaraCAgovWater6

City of Santa Barbara Water Demand(Acre Feet of Production by Calendar Year - Potable + Recycled)

0

2500

5000

7500

10000

12500

15000

17500

20000

1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010

Figure ___

Total System Production (AF)

12 Months Ending

13374

February 28 2011

Post-DroughtPre-Drought Drought

SantaBarbaraCAgovWater7

Water Supplies - Cachumabull Primary City

Water Supply

bull Multi-Year SourceA few dry years notan issue

bull 8277 AFYCurrent Entitlement

bull 7863 AFYProjected Entitlement (2030)

SantaBarbaraCAgovWater8

Water Supplies - Cachuma

0

50000

100000

150000

200000

250000

1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011Water Year

Historical StorageVolumes1987-1993 Period

Recent History of Lake Cachuma Storage Levels (AF)With 1987-1993 Period Shown for Comparison

Figure ____

SantaBarbaraCAgovWater9

Water Supplies - Gibraltarbull ldquoPass Throughrdquo

implementationin progress

bull Modelingunder review

bull Conservative planning assumptions used pending modeling results

bull Sedimentation management study planned

SantaBarbaraCAgovWater10

Water Supplies ndash Mission Tunnelbull Infiltration from

percolating groundwateron both sides of themountain

bull Supply ranges from500 to 2375 AFY

bull Average contribution1125 AFY

SantaBarbaraCAgovWater11

Water Supplies ndash State Waterbull A small but useful part of our water

supply

bull Both the water amp the pipeline have value

bull Cityrsquos maximum delivery amount - 3300 AFY

bull Deliveries subject to availability

SantaBarbaraCAgovWater12

Water Supplies ndash State Waterbull Projections based on DWR

modeling using long-term databull No Delta or storage

improvementsbull Environmental limits remain in

effectbull Climate change effects assumed

SantaBarbaraCAgovWater13

Water Supplies - Groundwater

SantaBarbaraCAgovWater14

Water Supplies ndash Groundwaterbull Pumping occurs in

Downtown amp OuterState Street areas

bull 1300 AFY safe yieldbull Average City pumping

assumed at ~1100 AFYbull Maximum of 4150 AFY during drought

Ortega Groundwater Treatment Plant

SantaBarbaraCAgovWater15

Water Supplies ndash Recycled WaterRecycled Water Distribution System

SantaBarbaraCAgovWater16

Water Supplies ndash Recycled Waterbull Displaces use of potable

water amp extends water supplybull Current connected

demand 800 AFYbull 300 AFY potential demand amp capacity identifiedbull Target demand 1100 AFYbull Blending an economical solution for reducing mineral

contentbull Policy issues related to blending

SantaBarbaraCAgovWater17

Water Supplies ndash Recycled Water

SantaBarbaraCAgovWater18

Recycled Water Blending bull Filterability (turbidity) - solution identifiedbull Mineral Content (salts) separate issue -

- Blending $180AF added operating cost- MFRO $341AF added cost + $46 million

capitalbull Proposed Policy ldquoContingency Plan to

eliminate blending with goal to be ready to implement plan based on economic regulatory or water supply requirementsrdquo

SantaBarbaraCAgovWater19

Water Supplies - Desalination

bull Reliable butexpensive source

bull $177 million toreactivate if needed

bull Important to keepfor use in case ofextended drought

bull Proposed Planning Goal Avoid use until year six of Critical Drought Period

SantaBarbaraCAgovWater20

Demand Managementbull Declining demand

- Best Management Practices (CUWCC)- Conservation Program- 20 x 2020- Plumbing Code amp Appliance Standards

bull Projected development - 800 to 900 AFY bull Water Conservation Technical Evaluation

SantaBarbaraCAgovWater21

Demand Projections

12000

12500

13000

13500

14000

14500

15000

2010 2012 2014 2016 2018 2020 2022 2024 2026 2028 2030

Plan SB Demand (No Plumbing Code or Conservation Effects)Plumbing Code Effects OnlyPlumbing Code + Program B20 X 2020 Trend Line20 X 2020 Regulatory Limit

Water System Demand Projections (AFY)

SantaBarbaraCAgovWater22

Water Supply Planning Target

Projected Demand 14000Safety Margin (10) + 1400

Water Supply Target = 15400 AFY

SantaBarbaraCAgovWater23

Water Supply Planning Conceptsbull Planning for 6-Year Critical Drought Periodbull Water Supply Modeling - Using Historical

Data with Current Water Supply Sources and Projected Demands

bull Ongoing Conservation vs Short Term Planned Demand Reductions for Extraordinary Situations

SantaBarbaraCAgovWater24

Water Supply Performance

SantaBarbaraCAgovWater25

SantaBarbaraCAgovWater26

SantaBarbaraCAgovWater27

SantaBarbaraCAgovWater28

Key Policy Issuesbull Achieve 20 x 2020 through BMPs Additional

Conservation Measures amp Recycled Waterbull Planning for a 6-Year Duration Critical Drought

- Manage supplies to avoid use of Desal until year six- Water Banking Purchases- Planned Demand Reductions 10 to 15- Recycled Water Expansion

bull Recycled Water Blending bull Sedimentation Management

SantaBarbaraCAgovWater29

Next Stepsbull Finalize updated Long-Term Water

Supply Plan- April 11 Final Comments from Water

Commission- Environmental Review

bull Prepare Urban Water Management Plan Update per State Requirements

bull Target Adoption Date for LTWSP amp UWMP - June 14 2011

SantaBarbaraCAgovWater30

Discussion amp Feedback

SantaBarbaraCAgovWater31

SantaBarbaraCAgovWater32

SantaBarbaraCAgovWater33

SantaBarbaraCAgovWater34

SantaBarbaraCAgovWater35

SantaBarbaraCAgovWater36

Upper Santa Ynez River Operations Agreement(ldquoPass Through Agreementrdquo)

SantaBarbaraCAgovWater37

Context of 1989 Agreementbull City water supply shortage identified ndash Gibraltar

vulnerable to siltation

bull Solution Raise Gibraltar Dam 20rsquo to 40rsquo

bull Challenges by downstream and environmental interests

bull Cachuma enlargement under consideration

SantaBarbaraCAgovWater38

Parties to the Agreement

bull City of Santa Barbarabull Carpinteria Valley Water Districtbull Goleta Water Districtbull Montecito Water Districtbull Santa Ynez River Water Conservation Districtbull SYRWCD Improvement District No 1

Consent and Acknowledgement by US Bureau of Reclamation

SantaBarbaraCAgovWater39

Pass Through Summer no inflow

Current volume (reflects on-going siltation since 1988)

1988 Reservoir volume

Note different siltation levels

SantaBarbaraCAgovWater40

Smaller Reservoir Spills Sooner1988 Reservoir volume

Current Reservoir volume

SantaBarbaraCAgovWater41

Difference is Stored in Cachuma as Gibraltar WaterBase Reservoir

Actual Reservoir

SantaBarbaraCAgovWater42

  • Long Term Water Supply Plan Adaptive Management
  • Overview
  • Historical Background
  • Historical Background
  • Historical Background
  • Slide Number 6
  • Water Supplies - Cachuma
  • Water Supplies - Cachuma
  • Water Supplies - Gibraltar
  • Water Supplies ndash Mission Tunnel
  • Water Supplies ndash State Water
  • Water Supplies ndash State Water
  • Water Supplies - Groundwater
  • Water Supplies ndash Groundwater
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Recycled Water Blending
  • Water Supplies - Desalination
  • Demand Management
  • Demand Projections
  • Water Supply Planning Target
  • Water Supply Planning Concepts
  • Water Supply Performance
  • Slide Number 25
  • Slide Number 26
  • Slide Number 27
  • Key Policy Issues
  • Next Steps
  • Discussion amp Feedback
  • Slide Number 31
  • Slide Number 32
  • Slide Number 33
  • Slide Number 34
  • Slide Number 35
  • Slide Number 36
  • Context of 1989 Agreement
  • Parties to the Agreement
  • Pass Through Summer no inflow
  • Smaller Reservoir Spills Sooner
  • Difference is Stored in Cachuma as Gibraltar Water
  • Slide Number 42
Detailed Simple
Maximum Capacity () Maximum Capacity (AF) 1980s Current
Lake Cachuma 32 8277 Cachuma 9700 8577
Gibraltar Reservoir 19 5000 Gibraltar 7400 6000
Mission Tunnel 4 1000 Groundwater 4500 4150
State Water Project 12 3000 Recycled Water 800
Groundwater 16 4150 State Water 3000
Recycled Water 3 800 Desalination 3125
Montecito Transfer 1 300 Totals 21600 25652
Desalination 12 3125
100 25652
Lake Cachuma
Gibraltar Reservoir
Mission Tunnel
State Water Project
Groundwater
Recycled Water
Montecito Transfer
Desalination
In our review of the FMP EIREIS we had a small discussion on how to characterize our water supplies in particular State Water In that discussion I commented that the average State Water delivery did not apply to how we did our water supply planning a
The supply target in this analysis is 18200 AFY with a goal of having no shortage greater than 1820 (10) in any year The critical year is 1951 This supply target was developed for us by our Community Development Department for the LTWSP and include
The Cityrsquos supply strategy as modeled is to
use all surface water supply first with a minimum (300 AFY) amount of local groundwater
use available State Water to get us to the supply target
if enough State Water is not available meet the supply target with local groundwater up to 4500 AFY
if that is not enough turn on the desal plant with a goal of having no shortage greater than 1820 AFY in the critical year
The modeling results presented in the first spreadsheet page (LTWSP2002) and the chart shows that our supplies meet the overall production target and satisfy the goal of having a shortage less than 10 in the critical year
In this analysis State Water is an important element in meeting the annual target and the critical year shortage goal The average delivery of State Water is meaningless in this analysis Also with the Cityrsquos approach our average delivery of State Wat
Another important consideration is that the estimates of State Water deliveries based on history result in historical critical periods for the Santa Ynez River and the State Water Project not coinciding I think it is acceptable for one to do this analys
I am not sure where this leaves us with respect to what we put in the FMP EISEIR for our individual water supplies For the City of Santa Barbara input I can give John Gray the bottom line of the spreadsheet with our averages for the 76 year period T
One value of the Cityrsquos approach is that it gives some meaning to the shortages that would happen (or at least are modeled to happen) if the surcharge is not included or other changes to Cachuma Project yield are suggested Our goal again is a shortage
LONG TERM WATER SUPPLY PROGRAM SUPPLY SCENARIO
As estimated by the Santa Ynez River Hydrology Model using 3 ft surcharge and BO fish releases
State Water critical period is moved to coincide with Cachuma critical period
Water Conservation and GW recharge is left out of this version
Includes ground water recovery and 10 safety margin values in acre feet production is 18200 AFY
Filename=LTWSP2002xls SWP
Year Cachuma Desal SWP GibJun GW Recycled Total Shortage
1918 8277 2357 6366 300 900 18200 14300 80
1919 8277 2400 5865 758 900 18200 14300 80
1920 8277 2400 5560 1063 900 18200 14300 80
1921 8277 2400 5483 1140 900 18200 14300 80
1922 8277 2792 5931 300 900 18200 14300 94 094
1923 8277 2894 5829 300 900 18200 14300 99 099
1924 8277 1500 5494 2029 900 18200 14300 50 05
1925 8277 1290 5294 2439 900 18200 14300 43 043
1926 8277 1740 5406 1877 900 18200 14300 58 058
1927 8277 2550 5643 830 900 18200 14300 85 085
1928 8277 2580 5548 895 900 18200 14300 86 086
1929 8277 1680 5425 1918 900 18200 14300 56 056
1930 8232 2250 5330 1488 900 18200 14300 75 057
1931 7306 2010 4673 3311 900 18200 14300 67 042
1932 7857 1950 4713 2780 900 18200 14300 65 044
1933 8277 2010 5451 1562 900 18200 14300 67 038
1934 8277 2640 5347 1036 900 18200 14300 88 033
1935 8277 1950 5528 1545 900 18200 14300 65 065
1936 8277 2460 5544 1019 900 18200 14300 82 082
1937 8277 2220 5797 1006 900 18200 14300 74 074
1938 8277 2613 6110 300 900 18200 14300 94 094
1939 8277 2640 5914 469 900 18200 14300 88 088
1940 8277 2460 5586 977 900 18200 14300 82 082
1941 8277 2318 6405 300 900 18200 14300 97 097
1942 8277 2473 6250 300 900 18200 14300 100 1
1943 8277 2534 6189 300 900 18200 14300 89 089
1944 8277 2639 6084 300 900 18200 14300 92 092
1945 8277 2700 5804 519 900 18200 14300 90 09
1946 8277 2640 5630 753 900 18200 14300 88 088
1947 8277 1710 5427 1886 900 18200 14300 57 075
1948 8277 1260 5236 2527 900 18200 14300 42 067
1949 7856 1604 1320 2021 4500 900 18200 -0 14300 44 065
1950 6760 1564 1140 3336 4500 900 18200 0 14300 38 067
1951 5470 3000 990 500 4500 900 15360 2840 01560380894 14300 33 088
1952 7546 2155 2880 4419 300 900 18200 14300 96 096
1953 8277 323 2700 5700 300 900 18200 14300 90 09
1954 8277 739 2490 5494 300 900 18200 14300 83 083
1955 8277 1222 2070 5431 300 900 18200 14300 69 069
1956 8234 2700 5462 904 900 18200 14300 90 09
1957 7521 2640 5411 1728 900 18200 14300 88 088
1958 7875 2700 5997 728 900 18200 14300 90 09
1959 8277 2640 5921 462 900 18200 14300 88 088
1960 8277 1890 5497 1636 900 18200 14300 63 063
1961 8277 1830 4178 3014 900 18200 14300 61 061
1962 8277 2340 4147 2536 900 18200 14300 78 078
1963 8277 2820 5537 666 900 18200 14300 94 094
1964 8277 2640 5327 1056 900 18200 14300 88 088
1965 8081 2460 5309 1450 900 18200 14300 82 082
1966 8220 2880 5639 561 900 18200 14300 96 096
1967 8277 2827 5896 300 900 18200 14300 96 096
1968 8277 2670 5675 678 900 18200 14300 89 089
1969 8277 2397 6326 300 900 18200 14300 93 093
1970 8277 2670 6036 317 900 18200 14300 89 089
1971 8277 2820 5733 470 900 18200 14300 94 094
1972 8277 2640 5443 940 900 18200 14300 88 088
1973 8277 2460 5747 816 900 18200 14300 82 082
1974 8277 2820 5785 418 900 18200 14300 94 094
1975 8277 2880 5742 401 900 18200 14300 96 096
1976 8277 2640 5515 868 900 18200 14300 88 088
1977 8277 990 5279 2754 900 18200 14300 33 033
1978 8277 2040 6052 931 900 18200 14300 68 068
1979 8277 2550 6171 302 900 18200 14300 85 085
1980 8277 2460 6188 375 900 18200 14300 82 082
1981 8277 2490 6145 388 900 18200 14300 83 083
1982 8277 2735 5988 300 900 18200 14300 94 094
1983 8277 1768 6955 300 900 18200 14300 100 1
1984 8277 2419 6304 300 900 18200 14300 100 1
1985 8277 2872 5851 300 900 18200 14300 96 096
1986 8277 2430 5703 890 900 18200 14300 81 081
1987 8277 2070 5321 1632 900 18200 14300 69 069
1988 8277 1290 5858 1875 900 18200 14300 43 043
1989 7990 1740 5641 1929 900 18200 14300 58 058
1990 6885 2365 1380 2170 4500 900 18200 14300 46 046
1991 6829 2388 870 2713 4500 900 18200 14300 29 029
1992 7997 2213 930 5860 300 900 18200 14300 31 031
1993 8277 1857 6866 300 900 18200 14300 76 076
Average 8122 231 2249 5436 1224 900 18163 769342 088
2241
7470
163592
LONG TERM WATER SUPPLY PROGRAM SUPPLY SCENARIO
As estimated by the Santa Ynez River Hydrology Model using 3 ft surcharge and BO fish releases
State Water deliveries are based on delivery estimates provided by CCWA in 2001
Water Conservation and GW recharge is left out of this version
Includes ground water recovery and 10 safety margin values in acre feet production is 18200 AFY
Filename=LTWSP2002xls SWP
Year Cachuma Desal SWP GibJun GW Recycled Total Shortage
1918 8277 2357 6366 300 900 18200 14300 80
1919 8277 2400 5865 758 900 18200 14300 80
1920 8277 2400 5560 1063 900 18200 14300 80
1921 8277 2400 5483 1140 900 18200 14300 80
1922 8277 2792 5931 300 900 18200 14300 94 094
1923 8277 2894 5829 300 900 18200 14300 99 099
1924 8277 1500 5494 2029 900 18200 14300 50 05
1925 8277 1290 5294 2439 900 18200 14300 43 043
1926 8277 1740 5406 1877 900 18200 14300 58 058
1927 8277 2550 5643 830 900 18200 14300 85 085
1928 8277 2580 5548 895 900 18200 14300 86 086
1929 8277 1680 5425 1918 900 18200 14300 56 056
1930 8232 1710 5330 2028 900 18200 14300 57 057
1931 7306 1260 4673 4061 900 18200 14300 42 042
1932 7857 1320 4713 3410 900 18200 14300 44 044
1933 8277 1140 5451 2432 900 18200 14300 38 038
1934 8277 990 5347 2686 900 18200 14300 33 033
1935 8277 1950 5528 1545 900 18200 14300 65 065
1936 8277 2460 5544 1019 900 18200 14300 82 082
1937 8277 2220 5797 1006 900 18200 14300 74 074
1938 8277 2613 6110 300 900 18200 14300 94 094
1939 8277 2640 5914 469 900 18200 14300 88 088
1940 8277 2460 5586 977 900 18200 14300 82 082
1941 8277 2318 6405 300 900 18200 14300 97 097
1942 8277 2473 6250 300 900 18200 14300 100 1
1943 8277 2534 6189 300 900 18200 14300 89 089
1944 8277 2639 6084 300 900 18200 14300 92 092
1945 8277 2700 5804 519 900 18200 14300 90 09
1946 8277 2640 5630 753 900 18200 14300 88 088
1947 8277 2250 5427 1346 900 18200 14300 75 075
1948 8277 2010 5236 1777 900 18200 14300 67 067
1949 7856 974 1950 2021 4500 900 18200 14300 65 065
1950 6760 694 2010 3336 4500 900 18200 14300 67 067
1951 5470 3000 2640 500 4500 900 17010 1190 00653787487 14300 88 088
1952 7546 2155 2880 4419 300 900 18200 14300 96 096
1953 8277 323 2700 5700 300 900 18200 14300 90 09
1954 8277 739 2490 5494 300 900 18200 14300 83 083
1955 8277 1222 2070 5431 300 900 18200 14300 69 069
1956 8234 2700 5462 904 900 18200 14300 90 09
1957 7521 2640 5411 1728 900 18200 14300 88 088
1958 7875 2700 5997 728 900 18200 14300 90 09
1959 8277 2640 5921 462 900 18200 14300 88 088
1960 8277 1890 5497 1636 900 18200 14300 63 063
1961 8277 1830 4178 3014 900 18200 14300 61 061
1962 8277 2340 4147 2536 900 18200 14300 78 078
1963 8277 2820 5537 666 900 18200 14300 94 094
1964 8277 2640 5327 1056 900 18200 14300 88 088
1965 8081 2460 5309 1450 900 18200 14300 82 082
1966 8220 2880 5639 561 900 18200 14300 96 096
1967 8277 2827 5896 300 900 18200 14300 96 096
1968 8277 2670 5675 678 900 18200 14300 89 089
1969 8277 2397 6326 300 900 18200 14300 93 093
1970 8277 2670 6036 317 900 18200 14300 89 089
1971 8277 2820 5733 470 900 18200 14300 94 094
1972 8277 2640 5443 940 900 18200 14300 88 088
1973 8277 2460 5747 816 900 18200 14300 82 082
1974 8277 2820 5785 418 900 18200 14300 94 094
1975 8277 2880 5742 401 900 18200 14300 96 096
1976 8277 2640 5515 868 900 18200 14300 88 088
1977 8277 990 5279 2754 900 18200 14300 33 033
1978 8277 2040 6052 931 900 18200 14300 68 068
1979 8277 2550 6171 302 900 18200 14300 85 085
1980 8277 2460 6188 375 900 18200 14300 82 082
1981 8277 2490 6145 388 900 18200 14300 83 083
1982 8277 2735 5988 300 900 18200 14300 94 094
1983 8277 1768 6955 300 900 18200 14300 100 1
1984 8277 2419 6304 300 900 18200 14300 100 1
1985 8277 2872 5851 300 900 18200 14300 96 096
1986 8277 2430 5703 890 900 18200 14300 81 081
1987 8277 2070 5321 1632 900 18200 14300 69 069
1988 8277 1290 5858 1875 900 18200 14300 43 043
1989 7990 1740 5641 1929 900 18200 14300 58 058
1990 6885 2365 1380 2170 4500 900 18200 14300 46 046
1991 6829 2388 870 2713 4500 900 18200 14300 29 029
1992 7997 2213 930 5860 300 900 18200 14300 31 031
1993 8277 1857 6866 300 900 18200 14300 76 076
Average 8122 211 2249 5436 1266 900 18184 769342 088
2241
7470
163592
1918 1918 1918 1918 1918 1918 1918
1919 1919 1919 1919 1919 1919 1919
1920 1920 1920 1920 1920 1920 1920
1921 1921 1921 1921 1921 1921 1921
1922 1922 1922 1922 1922 1922 1922
1923 1923 1923 1923 1923 1923 1923
1924 1924 1924 1924 1924 1924 1924
1925 1925 1925 1925 1925 1925 1925
1926 1926 1926 1926 1926 1926 1926
1927 1927 1927 1927 1927 1927 1927
1928 1928 1928 1928 1928 1928 1928
1929 1929 1929 1929 1929 1929 1929
1930 1930 1930 1930 1930 1930 1930
1931 1931 1931 1931 1931 1931 1931
1932 1932 1932 1932 1932 1932 1932
1933 1933 1933 1933 1933 1933 1933
1934 1934 1934 1934 1934 1934 1934
1935 1935 1935 1935 1935 1935 1935
1936 1936 1936 1936 1936 1936 1936
1937 1937 1937 1937 1937 1937 1937
1938 1938 1938 1938 1938 1938 1938
1939 1939 1939 1939 1939 1939 1939
1940 1940 1940 1940 1940 1940 1940
1941 1941 1941 1941 1941 1941 1941
1942 1942 1942 1942 1942 1942 1942
1943 1943 1943 1943 1943 1943 1943
1944 1944 1944 1944 1944 1944 1944
1945 1945 1945 1945 1945 1945 1945
1946 1946 1946 1946 1946 1946 1946
1947 1947 1947 1947 1947 1947 1947
1948 1948 1948 1948 1948 1948 1948
1949 1949 1949 1949 1949 1949 1949
1950 1950 1950 1950 1950 1950 1950
1951 1951 1951 1951 1951 1951 1951
1952 1952 1952 1952 1952 1952 1952
1953 1953 1953 1953 1953 1953 1953
1954 1954 1954 1954 1954 1954 1954
1955 1955 1955 1955 1955 1955 1955
1956 1956 1956 1956 1956 1956 1956
1957 1957 1957 1957 1957 1957 1957
1958 1958 1958 1958 1958 1958 1958
1959 1959 1959 1959 1959 1959 1959
1960 1960 1960 1960 1960 1960 1960
1961 1961 1961 1961 1961 1961 1961
1962 1962 1962 1962 1962 1962 1962
1963 1963 1963 1963 1963 1963 1963
1964 1964 1964 1964 1964 1964 1964
1965 1965 1965 1965 1965 1965 1965
1966 1966 1966 1966 1966 1966 1966
1967 1967 1967 1967 1967 1967 1967
1968 1968 1968 1968 1968 1968 1968
1969 1969 1969 1969 1969 1969 1969
1970 1970 1970 1970 1970 1970 1970
1971 1971 1971 1971 1971 1971 1971
1972 1972 1972 1972 1972 1972 1972
1973 1973 1973 1973 1973 1973 1973
1974 1974 1974 1974 1974 1974 1974
1975 1975 1975 1975 1975 1975 1975
1976 1976 1976 1976 1976 1976 1976
1977 1977 1977 1977 1977 1977 1977
1978 1978 1978 1978 1978 1978 1978
1979 1979 1979 1979 1979 1979 1979
1980 1980 1980 1980 1980 1980 1980
1981 1981 1981 1981 1981 1981 1981
1982 1982 1982 1982 1982 1982 1982
1983 1983 1983 1983 1983 1983 1983
1984 1984 1984 1984 1984 1984 1984
1985 1985 1985 1985 1985 1985 1985
1986 1986 1986 1986 1986 1986 1986
1987 1987 1987 1987 1987 1987 1987
1988 1988 1988 1988 1988 1988 1988
1989 1989 1989 1989 1989 1989 1989
1990 1990 1990 1990 1990 1990 1990
1991 1991 1991 1991 1991 1991 1991
1992 1992 1992 1992 1992 1992 1992
1993 1993 1993 1993 1993 1993 1993
Cachuma
Gibraltar
Groundwater
Recycled Water
State Water
Desalination
Detailed Simple
Maximum Capacity () Maximum Capacity (AF) 1980s Current
Lake Cachuma 32 8277 Cachuma 9700 8577
Gibraltar Reservoir 19 5000 Gibraltar 7400 6000
Mission Tunnel 4 1000 Groundwater 4500 4150
State Water Project 12 3000 Recycled Water 800
Groundwater 16 4150 State Water 3000
Recycled Water 3 800 Desalination 3125
Montecito Transfer 1 300 Totals 21600 25652
Desalination 12 3125
100 25652
Lake Cachuma
Gibraltar Reservoir
Mission Tunnel
State Water Project
Groundwater
Recycled Water
Montecito Transfer
Desalination
In our review of the FMP EIREIS we had a small discussion on how to characterize our water supplies in particular State Water In that discussion I commented that the average State Water delivery did not apply to how we did our water supply planning a
The supply target in this analysis is 18200 AFY with a goal of having no shortage greater than 1820 (10) in any year The critical year is 1951 This supply target was developed for us by our Community Development Department for the LTWSP and include
The Cityrsquos supply strategy as modeled is to
use all surface water supply first with a minimum (300 AFY) amount of local groundwater
use available State Water to get us to the supply target
if enough State Water is not available meet the supply target with local groundwater up to 4500 AFY
if that is not enough turn on the desal plant with a goal of having no shortage greater than 1820 AFY in the critical year
The modeling results presented in the first spreadsheet page (LTWSP2002) and the chart shows that our supplies meet the overall production target and satisfy the goal of having a shortage less than 10 in the critical year
In this analysis State Water is an important element in meeting the annual target and the critical year shortage goal The average delivery of State Water is meaningless in this analysis Also with the Cityrsquos approach our average delivery of State Wat
Another important consideration is that the estimates of State Water deliveries based on history result in historical critical periods for the Santa Ynez River and the State Water Project not coinciding I think it is acceptable for one to do this analys
I am not sure where this leaves us with respect to what we put in the FMP EISEIR for our individual water supplies For the City of Santa Barbara input I can give John Gray the bottom line of the spreadsheet with our averages for the 76 year period T
One value of the Cityrsquos approach is that it gives some meaning to the shortages that would happen (or at least are modeled to happen) if the surcharge is not included or other changes to Cachuma Project yield are suggested Our goal again is a shortage
LONG TERM WATER SUPPLY PROGRAM SUPPLY SCENARIO
As estimated by the Santa Ynez River Hydrology Model using 3 ft surcharge and BO fish releases
State Water critical period is moved to coincide with Cachuma critical period
Water Conservation and GW recharge is left out of this version
Includes ground water recovery and 10 safety margin values in acre feet production is 18200 AFY
Filename=LTWSP2002xls SWP
Year Cachuma Desal SWP GibJun GW Recycled Total Shortage
1918 8277 2357 6366 300 900 18200 14300 80
1919 8277 2400 5865 758 900 18200 14300 80
1920 8277 2400 5560 1063 900 18200 14300 80
1921 8277 2400 5483 1140 900 18200 14300 80
1922 8277 2792 5931 300 900 18200 14300 94 094
1923 8277 2894 5829 300 900 18200 14300 99 099
1924 8277 1500 5494 2029 900 18200 14300 50 05
1925 8277 1290 5294 2439 900 18200 14300 43 043
1926 8277 1740 5406 1877 900 18200 14300 58 058
1927 8277 2550 5643 830 900 18200 14300 85 085
1928 8277 2580 5548 895 900 18200 14300 86 086
1929 8277 1680 5425 1918 900 18200 14300 56 056
1930 8232 2250 5330 1488 900 18200 14300 75 057
1931 7306 2010 4673 3311 900 18200 14300 67 042
1932 7857 1950 4713 2780 900 18200 14300 65 044
1933 8277 2010 5451 1562 900 18200 14300 67 038
1934 8277 2640 5347 1036 900 18200 14300 88 033
1935 8277 1950 5528 1545 900 18200 14300 65 065
1936 8277 2460 5544 1019 900 18200 14300 82 082
1937 8277 2220 5797 1006 900 18200 14300 74 074
1938 8277 2613 6110 300 900 18200 14300 94 094
1939 8277 2640 5914 469 900 18200 14300 88 088
1940 8277 2460 5586 977 900 18200 14300 82 082
1941 8277 2318 6405 300 900 18200 14300 97 097
1942 8277 2473 6250 300 900 18200 14300 100 1
1943 8277 2534 6189 300 900 18200 14300 89 089
1944 8277 2639 6084 300 900 18200 14300 92 092
1945 8277 2700 5804 519 900 18200 14300 90 09
1946 8277 2640 5630 753 900 18200 14300 88 088
1947 8277 1710 5427 1886 900 18200 14300 57 075
1948 8277 1260 5236 2527 900 18200 14300 42 067
1949 7856 1604 1320 2021 4500 900 18200 -0 14300 44 065
1950 6760 1564 1140 3336 4500 900 18200 0 14300 38 067
1951 5470 3000 990 500 4500 900 15360 2840 01560380894 14300 33 088
1952 7546 2155 2880 4419 300 900 18200 14300 96 096
1953 8277 323 2700 5700 300 900 18200 14300 90 09
1954 8277 739 2490 5494 300 900 18200 14300 83 083
1955 8277 1222 2070 5431 300 900 18200 14300 69 069
1956 8234 2700 5462 904 900 18200 14300 90 09
1957 7521 2640 5411 1728 900 18200 14300 88 088
1958 7875 2700 5997 728 900 18200 14300 90 09
1959 8277 2640 5921 462 900 18200 14300 88 088
1960 8277 1890 5497 1636 900 18200 14300 63 063
1961 8277 1830 4178 3014 900 18200 14300 61 061
1962 8277 2340 4147 2536 900 18200 14300 78 078
1963 8277 2820 5537 666 900 18200 14300 94 094
1964 8277 2640 5327 1056 900 18200 14300 88 088
1965 8081 2460 5309 1450 900 18200 14300 82 082
1966 8220 2880 5639 561 900 18200 14300 96 096
1967 8277 2827 5896 300 900 18200 14300 96 096
1968 8277 2670 5675 678 900 18200 14300 89 089
1969 8277 2397 6326 300 900 18200 14300 93 093
1970 8277 2670 6036 317 900 18200 14300 89 089
1971 8277 2820 5733 470 900 18200 14300 94 094
1972 8277 2640 5443 940 900 18200 14300 88 088
1973 8277 2460 5747 816 900 18200 14300 82 082
1974 8277 2820 5785 418 900 18200 14300 94 094
1975 8277 2880 5742 401 900 18200 14300 96 096
1976 8277 2640 5515 868 900 18200 14300 88 088
1977 8277 990 5279 2754 900 18200 14300 33 033
1978 8277 2040 6052 931 900 18200 14300 68 068
1979 8277 2550 6171 302 900 18200 14300 85 085
1980 8277 2460 6188 375 900 18200 14300 82 082
1981 8277 2490 6145 388 900 18200 14300 83 083
1982 8277 2735 5988 300 900 18200 14300 94 094
1983 8277 1768 6955 300 900 18200 14300 100 1
1984 8277 2419 6304 300 900 18200 14300 100 1
1985 8277 2872 5851 300 900 18200 14300 96 096
1986 8277 2430 5703 890 900 18200 14300 81 081
1987 8277 2070 5321 1632 900 18200 14300 69 069
1988 8277 1290 5858 1875 900 18200 14300 43 043
1989 7990 1740 5641 1929 900 18200 14300 58 058
1990 6885 2365 1380 2170 4500 900 18200 14300 46 046
1991 6829 2388 870 2713 4500 900 18200 14300 29 029
1992 7997 2213 930 5860 300 900 18200 14300 31 031
1993 8277 1857 6866 300 900 18200 14300 76 076
Average 8122 231 2249 5436 1224 900 18163 769342 088
2241
7470
163592
LONG TERM WATER SUPPLY PROGRAM SUPPLY SCENARIO
As estimated by the Santa Ynez River Hydrology Model using 3 ft surcharge and BO fish releases
State Water deliveries are based on delivery estimates provided by CCWA in 2001
Water Conservation and GW recharge is left out of this version
Includes ground water recovery and 10 safety margin values in acre feet production is 18200 AFY
Filename=LTWSP2002xls SWP
Year Cachuma Desal SWP GibJun GW Recycled Total Shortage
1918 8277 2357 6366 300 900 18200 14300 80
1919 8277 2400 5865 758 900 18200 14300 80
1920 8277 2400 5560 1063 900 18200 14300 80
1921 8277 2400 5483 1140 900 18200 14300 80
1922 8277 2792 5931 300 900 18200 14300 94 094
1923 8277 2894 5829 300 900 18200 14300 99 099
1924 8277 1500 5494 2029 900 18200 14300 50 05
1925 8277 1290 5294 2439 900 18200 14300 43 043
1926 8277 1740 5406 1877 900 18200 14300 58 058
1927 8277 2550 5643 830 900 18200 14300 85 085
1928 8277 2580 5548 895 900 18200 14300 86 086
1929 8277 1680 5425 1918 900 18200 14300 56 056
1930 8232 1710 5330 2028 900 18200 14300 57 057
1931 7306 1260 4673 4061 900 18200 14300 42 042
1932 7857 1320 4713 3410 900 18200 14300 44 044
1933 8277 1140 5451 2432 900 18200 14300 38 038
1934 8277 990 5347 2686 900 18200 14300 33 033
1935 8277 1950 5528 1545 900 18200 14300 65 065
1936 8277 2460 5544 1019 900 18200 14300 82 082
1937 8277 2220 5797 1006 900 18200 14300 74 074
1938 8277 2613 6110 300 900 18200 14300 94 094
1939 8277 2640 5914 469 900 18200 14300 88 088
1940 8277 2460 5586 977 900 18200 14300 82 082
1941 8277 2318 6405 300 900 18200 14300 97 097
1942 8277 2473 6250 300 900 18200 14300 100 1
1943 8277 2534 6189 300 900 18200 14300 89 089
1944 8277 2639 6084 300 900 18200 14300 92 092
1945 8277 2700 5804 519 900 18200 14300 90 09
1946 8277 2640 5630 753 900 18200 14300 88 088
1947 8277 2250 5427 1346 900 18200 14300 75 075
1948 8277 2010 5236 1777 900 18200 14300 67 067
1949 7856 974 1950 2021 4500 900 18200 14300 65 065
1950 6760 694 2010 3336 4500 900 18200 14300 67 067
1951 5470 3000 2640 500 4500 900 17010 1190 00653787487 14300 88 088
1952 7546 2155 2880 4419 300 900 18200 14300 96 096
1953 8277 323 2700 5700 300 900 18200 14300 90 09
1954 8277 739 2490 5494 300 900 18200 14300 83 083
1955 8277 1222 2070 5431 300 900 18200 14300 69 069
1956 8234 2700 5462 904 900 18200 14300 90 09
1957 7521 2640 5411 1728 900 18200 14300 88 088
1958 7875 2700 5997 728 900 18200 14300 90 09
1959 8277 2640 5921 462 900 18200 14300 88 088
1960 8277 1890 5497 1636 900 18200 14300 63 063
1961 8277 1830 4178 3014 900 18200 14300 61 061
1962 8277 2340 4147 2536 900 18200 14300 78 078
1963 8277 2820 5537 666 900 18200 14300 94 094
1964 8277 2640 5327 1056 900 18200 14300 88 088
1965 8081 2460 5309 1450 900 18200 14300 82 082
1966 8220 2880 5639 561 900 18200 14300 96 096
1967 8277 2827 5896 300 900 18200 14300 96 096
1968 8277 2670 5675 678 900 18200 14300 89 089
1969 8277 2397 6326 300 900 18200 14300 93 093
1970 8277 2670 6036 317 900 18200 14300 89 089
1971 8277 2820 5733 470 900 18200 14300 94 094
1972 8277 2640 5443 940 900 18200 14300 88 088
1973 8277 2460 5747 816 900 18200 14300 82 082
1974 8277 2820 5785 418 900 18200 14300 94 094
1975 8277 2880 5742 401 900 18200 14300 96 096
1976 8277 2640 5515 868 900 18200 14300 88 088
1977 8277 990 5279 2754 900 18200 14300 33 033
1978 8277 2040 6052 931 900 18200 14300 68 068
1979 8277 2550 6171 302 900 18200 14300 85 085
1980 8277 2460 6188 375 900 18200 14300 82 082
1981 8277 2490 6145 388 900 18200 14300 83 083
1982 8277 2735 5988 300 900 18200 14300 94 094
1983 8277 1768 6955 300 900 18200 14300 100 1
1984 8277 2419 6304 300 900 18200 14300 100 1
1985 8277 2872 5851 300 900 18200 14300 96 096
1986 8277 2430 5703 890 900 18200 14300 81 081
1987 8277 2070 5321 1632 900 18200 14300 69 069
1988 8277 1290 5858 1875 900 18200 14300 43 043
1989 7990 1740 5641 1929 900 18200 14300 58 058
1990 6885 2365 1380 2170 4500 900 18200 14300 46 046
1991 6829 2388 870 2713 4500 900 18200 14300 29 029
1992 7997 2213 930 5860 300 900 18200 14300 31 031
1993 8277 1857 6866 300 900 18200 14300 76 076
Average 8122 211 2249 5436 1266 900 18184 769342 088
2241
7470
163592
Page 7: PUBLIC WORKS DEPARTMENT WATER RESOURCES DIVISION …...mountain • Supply ranges from ... Water Supplies –State Water • A small, but useful part of our water supply • Both the

LTWSP2002 (coincide)

Text of Accompanying Email

Chart1

Maximum Capacity (AF)
8277
5000
1000
3000
4150
800
300
3125

Pie Chart Data

Pie Chart Data

Cachuma8277 AF
Gibraltar6000 AF
Groundwater4150 AF
State Water3000 AF
Recycled800 AF
Desalination3125 AF
Current
Current Water Supply(AF of Capacity)
Gibraltar7400 AF
Cachuma9700 AF
Groundwater4500 AF
1980s
1980s Water Supply(AF of Capacity)

SantaBarbaraCAgovWater4

Historical Backgroundbull Gibraltar Pass Through Agreement

(1989)- Gibraltar Enlargement Deferred- City to ldquoPass Throughrdquo Gibraltar

Water to Cachuma

bull 1987 ndash 1991 Drought - 50 Cutbacks Sought - State Water Bond Approval- Advisory Vote for Desal

Gibraltar Reservoir1989

SantaBarbaraCAgovWater5

Historical BackgroundLong-Term Water Supply Program (1994)

- Added Recycled WaterDesal amp State Water

- Critical Period Planning- Demand Estimate per

General Plan Update (1989)- Water Conservation savings

of 1500 AFY planned

LTWSP Water Supply(AF of Capacity)

Cachuma8277 AF

Gibraltar6000 AF

Groundwater4150 AF

State Water3000 AF

Recycled800 AF

Desalination3125 AF

Chart2

Cachuma8277 AF
Gibraltar6000 AF
Groundwater4150 AF
State Water3000 AF
Recycled800 AF
Desalination3125 AF
Current
LTWSP Water Supply(AF of Capacity)
8577
6000
4150
800
3000
3125

ltwspCht

ampA
Page ampP
Recycled
Cachuma
Gib etc
SWP
GW
Desal
Shortage
Water Supply (AF)
Figure 1 Long-Term Water Supply ProgramUpdated to include surchararge fish releases and 1990 drought
900
82773366
6366
23566634
300
900
82773366
5865
2400
7576634
900
82773366
5560
2400
10626634
900
82773366
5483
2400
11396634
900
82773366
5931
27916634
300
900
82773366
5829
28936634
300
900
82773366
5494
1500
20286634
900
82773366
5294
1290
24386634
900
82773366
5406
1740
18766634
900
82773366
5643
2550
8296634
900
82773366
5548
2580
8946634
900
82773366
5425
1680
19176634
900
8231514135
5330
1710
2028485865
900
7305562347
4673246
1260
4061191653
900
7856777469
471278
1320
3410442531
900
82773366
5451
1140
24316634
900
82773366
5347
990
26856634
900
82773366
5528
1950
15446634
900
82773366
5544
2460
10186634
900
82773366
5797
2220
10056634
900
82773366
6110
26126634
300
900
82773366
5914
2640
4686634
900
82773366
5586
2460
9766634
900
82773366
6405
23176634
300
900
82773366
6250
24726634
300
900
82773366
6189
25336634
300
900
82773366
6084
26386634
300
900
82773366
5804
2700
5186634
900
82773366
5630
2640
7526634
900
82773366
5427
2250
13456634
900
82773366
5236
2010
17766634
900
7855786017
2020508
1950
4500
974
900
6759906438
3335608
2010
4500
694485562
900
547040079
500
2640
4500
3000
1189893227
900
7545802755
441926
2880
300
2155
900
82773366
5700
2700
300
323
900
82773366
5494
2490
300
739
900
82773366
5431
2070
300
1222
900
8233699836
5462
2700
904300164
900
7520604423
5411
2640
1728395577
900
787483284
5997
2700
72816716
900
82773366
5921
2640
4616634
900
82773366
5497
1890
16356634
900
82773366
4178353
1830
30143104
900
82773366
4147065
2340
25355984
900
82773366
5537
2820
6656634
900
82773366
5327
2640
10556634
900
8080887468
5309
2460
1450112532
900
8219636025
5639
2880
561363975
900
82773366
5896
28266634
300
900
82773366
5675
2670
6776634
900
82773366
6326
23966634
300
900
82773366
6036
2670
3166634
900
82773366
5733
2820
4696634
900
82773366
5443
2640
9396634
900
82773366
5747
2460
8156634
900
82773366
5785
2820
4176634
900
82773366
5742
2880
4006634
900
82773366
5515
2640
8676634
900
82773366
5279
990
27536634
900
82773366
6052
2040
9306634
900
82773366
6171
2550
3016634
900
82773366
6188
2460
3746634
900
82773366
6145
2490
3876634
900
82773366
5988
27346634
300
900
82773366
6955
17676634
300
900
82773366
6304
24186634
300
900
82773366
5851
28716634
300
900
82773366
5703
2430
8896634
900
82773366
5321
2070
16316634
900
82773366
5858
1290
18746634
900
7990356312
5641
1740
1928643688
900
6885154509
2170335
1380
4500
2364510491
900
682933383
271296
870
4500
238770617
900
7997267505
5860
930
300
2213
900
82773366
6866
18566634
300

LTWSP2002

LTWSP2002 (coincide)

Text of Accompanying Email

Chart1

Maximum Capacity (AF)
8277
5000
1000
3000
4150
800
300
3125

Pie Chart Data

Pie Chart Data

Cachuma8277 AF
Gibraltar6000 AF
Groundwater4150 AF
State Water3000 AF
Recycled800 AF
Desalination3125 AF
Current
Current Water Supply(AF of Capacity)
Gibraltar7400 AF
Cachuma9700 AF
Groundwater4500 AF
1980s
1980s Water Supply(AF of Capacity)

SantaBarbaraCAgovWater6

City of Santa Barbara Water Demand(Acre Feet of Production by Calendar Year - Potable + Recycled)

0

2500

5000

7500

10000

12500

15000

17500

20000

1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010

Figure ___

Total System Production (AF)

12 Months Ending

13374

February 28 2011

Post-DroughtPre-Drought Drought

SantaBarbaraCAgovWater7

Water Supplies - Cachumabull Primary City

Water Supply

bull Multi-Year SourceA few dry years notan issue

bull 8277 AFYCurrent Entitlement

bull 7863 AFYProjected Entitlement (2030)

SantaBarbaraCAgovWater8

Water Supplies - Cachuma

0

50000

100000

150000

200000

250000

1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011Water Year

Historical StorageVolumes1987-1993 Period

Recent History of Lake Cachuma Storage Levels (AF)With 1987-1993 Period Shown for Comparison

Figure ____

SantaBarbaraCAgovWater9

Water Supplies - Gibraltarbull ldquoPass Throughrdquo

implementationin progress

bull Modelingunder review

bull Conservative planning assumptions used pending modeling results

bull Sedimentation management study planned

SantaBarbaraCAgovWater10

Water Supplies ndash Mission Tunnelbull Infiltration from

percolating groundwateron both sides of themountain

bull Supply ranges from500 to 2375 AFY

bull Average contribution1125 AFY

SantaBarbaraCAgovWater11

Water Supplies ndash State Waterbull A small but useful part of our water

supply

bull Both the water amp the pipeline have value

bull Cityrsquos maximum delivery amount - 3300 AFY

bull Deliveries subject to availability

SantaBarbaraCAgovWater12

Water Supplies ndash State Waterbull Projections based on DWR

modeling using long-term databull No Delta or storage

improvementsbull Environmental limits remain in

effectbull Climate change effects assumed

SantaBarbaraCAgovWater13

Water Supplies - Groundwater

SantaBarbaraCAgovWater14

Water Supplies ndash Groundwaterbull Pumping occurs in

Downtown amp OuterState Street areas

bull 1300 AFY safe yieldbull Average City pumping

assumed at ~1100 AFYbull Maximum of 4150 AFY during drought

Ortega Groundwater Treatment Plant

SantaBarbaraCAgovWater15

Water Supplies ndash Recycled WaterRecycled Water Distribution System

SantaBarbaraCAgovWater16

Water Supplies ndash Recycled Waterbull Displaces use of potable

water amp extends water supplybull Current connected

demand 800 AFYbull 300 AFY potential demand amp capacity identifiedbull Target demand 1100 AFYbull Blending an economical solution for reducing mineral

contentbull Policy issues related to blending

SantaBarbaraCAgovWater17

Water Supplies ndash Recycled Water

SantaBarbaraCAgovWater18

Recycled Water Blending bull Filterability (turbidity) - solution identifiedbull Mineral Content (salts) separate issue -

- Blending $180AF added operating cost- MFRO $341AF added cost + $46 million

capitalbull Proposed Policy ldquoContingency Plan to

eliminate blending with goal to be ready to implement plan based on economic regulatory or water supply requirementsrdquo

SantaBarbaraCAgovWater19

Water Supplies - Desalination

bull Reliable butexpensive source

bull $177 million toreactivate if needed

bull Important to keepfor use in case ofextended drought

bull Proposed Planning Goal Avoid use until year six of Critical Drought Period

SantaBarbaraCAgovWater20

Demand Managementbull Declining demand

- Best Management Practices (CUWCC)- Conservation Program- 20 x 2020- Plumbing Code amp Appliance Standards

bull Projected development - 800 to 900 AFY bull Water Conservation Technical Evaluation

SantaBarbaraCAgovWater21

Demand Projections

12000

12500

13000

13500

14000

14500

15000

2010 2012 2014 2016 2018 2020 2022 2024 2026 2028 2030

Plan SB Demand (No Plumbing Code or Conservation Effects)Plumbing Code Effects OnlyPlumbing Code + Program B20 X 2020 Trend Line20 X 2020 Regulatory Limit

Water System Demand Projections (AFY)

SantaBarbaraCAgovWater22

Water Supply Planning Target

Projected Demand 14000Safety Margin (10) + 1400

Water Supply Target = 15400 AFY

SantaBarbaraCAgovWater23

Water Supply Planning Conceptsbull Planning for 6-Year Critical Drought Periodbull Water Supply Modeling - Using Historical

Data with Current Water Supply Sources and Projected Demands

bull Ongoing Conservation vs Short Term Planned Demand Reductions for Extraordinary Situations

SantaBarbaraCAgovWater24

Water Supply Performance

SantaBarbaraCAgovWater25

SantaBarbaraCAgovWater26

SantaBarbaraCAgovWater27

SantaBarbaraCAgovWater28

Key Policy Issuesbull Achieve 20 x 2020 through BMPs Additional

Conservation Measures amp Recycled Waterbull Planning for a 6-Year Duration Critical Drought

- Manage supplies to avoid use of Desal until year six- Water Banking Purchases- Planned Demand Reductions 10 to 15- Recycled Water Expansion

bull Recycled Water Blending bull Sedimentation Management

SantaBarbaraCAgovWater29

Next Stepsbull Finalize updated Long-Term Water

Supply Plan- April 11 Final Comments from Water

Commission- Environmental Review

bull Prepare Urban Water Management Plan Update per State Requirements

bull Target Adoption Date for LTWSP amp UWMP - June 14 2011

SantaBarbaraCAgovWater30

Discussion amp Feedback

SantaBarbaraCAgovWater31

SantaBarbaraCAgovWater32

SantaBarbaraCAgovWater33

SantaBarbaraCAgovWater34

SantaBarbaraCAgovWater35

SantaBarbaraCAgovWater36

Upper Santa Ynez River Operations Agreement(ldquoPass Through Agreementrdquo)

SantaBarbaraCAgovWater37

Context of 1989 Agreementbull City water supply shortage identified ndash Gibraltar

vulnerable to siltation

bull Solution Raise Gibraltar Dam 20rsquo to 40rsquo

bull Challenges by downstream and environmental interests

bull Cachuma enlargement under consideration

SantaBarbaraCAgovWater38

Parties to the Agreement

bull City of Santa Barbarabull Carpinteria Valley Water Districtbull Goleta Water Districtbull Montecito Water Districtbull Santa Ynez River Water Conservation Districtbull SYRWCD Improvement District No 1

Consent and Acknowledgement by US Bureau of Reclamation

SantaBarbaraCAgovWater39

Pass Through Summer no inflow

Current volume (reflects on-going siltation since 1988)

1988 Reservoir volume

Note different siltation levels

SantaBarbaraCAgovWater40

Smaller Reservoir Spills Sooner1988 Reservoir volume

Current Reservoir volume

SantaBarbaraCAgovWater41

Difference is Stored in Cachuma as Gibraltar WaterBase Reservoir

Actual Reservoir

SantaBarbaraCAgovWater42

  • Long Term Water Supply Plan Adaptive Management
  • Overview
  • Historical Background
  • Historical Background
  • Historical Background
  • Slide Number 6
  • Water Supplies - Cachuma
  • Water Supplies - Cachuma
  • Water Supplies - Gibraltar
  • Water Supplies ndash Mission Tunnel
  • Water Supplies ndash State Water
  • Water Supplies ndash State Water
  • Water Supplies - Groundwater
  • Water Supplies ndash Groundwater
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Recycled Water Blending
  • Water Supplies - Desalination
  • Demand Management
  • Demand Projections
  • Water Supply Planning Target
  • Water Supply Planning Concepts
  • Water Supply Performance
  • Slide Number 25
  • Slide Number 26
  • Slide Number 27
  • Key Policy Issues
  • Next Steps
  • Discussion amp Feedback
  • Slide Number 31
  • Slide Number 32
  • Slide Number 33
  • Slide Number 34
  • Slide Number 35
  • Slide Number 36
  • Context of 1989 Agreement
  • Parties to the Agreement
  • Pass Through Summer no inflow
  • Smaller Reservoir Spills Sooner
  • Difference is Stored in Cachuma as Gibraltar Water
  • Slide Number 42
Detailed Simple
Maximum Capacity () Maximum Capacity (AF) 1980s Current
Lake Cachuma 32 8277 Cachuma 9700 8577
Gibraltar Reservoir 19 5000 Gibraltar 7400 6000
Mission Tunnel 4 1000 Groundwater 4500 4150
State Water Project 12 3000 Recycled Water 800
Groundwater 16 4150 State Water 3000
Recycled Water 3 800 Desalination 3125
Montecito Transfer 1 300 Totals 21600 25652
Desalination 12 3125
100 25652
Lake Cachuma
Gibraltar Reservoir
Mission Tunnel
State Water Project
Groundwater
Recycled Water
Montecito Transfer
Desalination
In our review of the FMP EIREIS we had a small discussion on how to characterize our water supplies in particular State Water In that discussion I commented that the average State Water delivery did not apply to how we did our water supply planning a
The supply target in this analysis is 18200 AFY with a goal of having no shortage greater than 1820 (10) in any year The critical year is 1951 This supply target was developed for us by our Community Development Department for the LTWSP and include
The Cityrsquos supply strategy as modeled is to
use all surface water supply first with a minimum (300 AFY) amount of local groundwater
use available State Water to get us to the supply target
if enough State Water is not available meet the supply target with local groundwater up to 4500 AFY
if that is not enough turn on the desal plant with a goal of having no shortage greater than 1820 AFY in the critical year
The modeling results presented in the first spreadsheet page (LTWSP2002) and the chart shows that our supplies meet the overall production target and satisfy the goal of having a shortage less than 10 in the critical year
In this analysis State Water is an important element in meeting the annual target and the critical year shortage goal The average delivery of State Water is meaningless in this analysis Also with the Cityrsquos approach our average delivery of State Wat
Another important consideration is that the estimates of State Water deliveries based on history result in historical critical periods for the Santa Ynez River and the State Water Project not coinciding I think it is acceptable for one to do this analys
I am not sure where this leaves us with respect to what we put in the FMP EISEIR for our individual water supplies For the City of Santa Barbara input I can give John Gray the bottom line of the spreadsheet with our averages for the 76 year period T
One value of the Cityrsquos approach is that it gives some meaning to the shortages that would happen (or at least are modeled to happen) if the surcharge is not included or other changes to Cachuma Project yield are suggested Our goal again is a shortage
LONG TERM WATER SUPPLY PROGRAM SUPPLY SCENARIO
As estimated by the Santa Ynez River Hydrology Model using 3 ft surcharge and BO fish releases
State Water critical period is moved to coincide with Cachuma critical period
Water Conservation and GW recharge is left out of this version
Includes ground water recovery and 10 safety margin values in acre feet production is 18200 AFY
Filename=LTWSP2002xls SWP
Year Cachuma Desal SWP GibJun GW Recycled Total Shortage
1918 8277 2357 6366 300 900 18200 14300 80
1919 8277 2400 5865 758 900 18200 14300 80
1920 8277 2400 5560 1063 900 18200 14300 80
1921 8277 2400 5483 1140 900 18200 14300 80
1922 8277 2792 5931 300 900 18200 14300 94 094
1923 8277 2894 5829 300 900 18200 14300 99 099
1924 8277 1500 5494 2029 900 18200 14300 50 05
1925 8277 1290 5294 2439 900 18200 14300 43 043
1926 8277 1740 5406 1877 900 18200 14300 58 058
1927 8277 2550 5643 830 900 18200 14300 85 085
1928 8277 2580 5548 895 900 18200 14300 86 086
1929 8277 1680 5425 1918 900 18200 14300 56 056
1930 8232 2250 5330 1488 900 18200 14300 75 057
1931 7306 2010 4673 3311 900 18200 14300 67 042
1932 7857 1950 4713 2780 900 18200 14300 65 044
1933 8277 2010 5451 1562 900 18200 14300 67 038
1934 8277 2640 5347 1036 900 18200 14300 88 033
1935 8277 1950 5528 1545 900 18200 14300 65 065
1936 8277 2460 5544 1019 900 18200 14300 82 082
1937 8277 2220 5797 1006 900 18200 14300 74 074
1938 8277 2613 6110 300 900 18200 14300 94 094
1939 8277 2640 5914 469 900 18200 14300 88 088
1940 8277 2460 5586 977 900 18200 14300 82 082
1941 8277 2318 6405 300 900 18200 14300 97 097
1942 8277 2473 6250 300 900 18200 14300 100 1
1943 8277 2534 6189 300 900 18200 14300 89 089
1944 8277 2639 6084 300 900 18200 14300 92 092
1945 8277 2700 5804 519 900 18200 14300 90 09
1946 8277 2640 5630 753 900 18200 14300 88 088
1947 8277 1710 5427 1886 900 18200 14300 57 075
1948 8277 1260 5236 2527 900 18200 14300 42 067
1949 7856 1604 1320 2021 4500 900 18200 -0 14300 44 065
1950 6760 1564 1140 3336 4500 900 18200 0 14300 38 067
1951 5470 3000 990 500 4500 900 15360 2840 01560380894 14300 33 088
1952 7546 2155 2880 4419 300 900 18200 14300 96 096
1953 8277 323 2700 5700 300 900 18200 14300 90 09
1954 8277 739 2490 5494 300 900 18200 14300 83 083
1955 8277 1222 2070 5431 300 900 18200 14300 69 069
1956 8234 2700 5462 904 900 18200 14300 90 09
1957 7521 2640 5411 1728 900 18200 14300 88 088
1958 7875 2700 5997 728 900 18200 14300 90 09
1959 8277 2640 5921 462 900 18200 14300 88 088
1960 8277 1890 5497 1636 900 18200 14300 63 063
1961 8277 1830 4178 3014 900 18200 14300 61 061
1962 8277 2340 4147 2536 900 18200 14300 78 078
1963 8277 2820 5537 666 900 18200 14300 94 094
1964 8277 2640 5327 1056 900 18200 14300 88 088
1965 8081 2460 5309 1450 900 18200 14300 82 082
1966 8220 2880 5639 561 900 18200 14300 96 096
1967 8277 2827 5896 300 900 18200 14300 96 096
1968 8277 2670 5675 678 900 18200 14300 89 089
1969 8277 2397 6326 300 900 18200 14300 93 093
1970 8277 2670 6036 317 900 18200 14300 89 089
1971 8277 2820 5733 470 900 18200 14300 94 094
1972 8277 2640 5443 940 900 18200 14300 88 088
1973 8277 2460 5747 816 900 18200 14300 82 082
1974 8277 2820 5785 418 900 18200 14300 94 094
1975 8277 2880 5742 401 900 18200 14300 96 096
1976 8277 2640 5515 868 900 18200 14300 88 088
1977 8277 990 5279 2754 900 18200 14300 33 033
1978 8277 2040 6052 931 900 18200 14300 68 068
1979 8277 2550 6171 302 900 18200 14300 85 085
1980 8277 2460 6188 375 900 18200 14300 82 082
1981 8277 2490 6145 388 900 18200 14300 83 083
1982 8277 2735 5988 300 900 18200 14300 94 094
1983 8277 1768 6955 300 900 18200 14300 100 1
1984 8277 2419 6304 300 900 18200 14300 100 1
1985 8277 2872 5851 300 900 18200 14300 96 096
1986 8277 2430 5703 890 900 18200 14300 81 081
1987 8277 2070 5321 1632 900 18200 14300 69 069
1988 8277 1290 5858 1875 900 18200 14300 43 043
1989 7990 1740 5641 1929 900 18200 14300 58 058
1990 6885 2365 1380 2170 4500 900 18200 14300 46 046
1991 6829 2388 870 2713 4500 900 18200 14300 29 029
1992 7997 2213 930 5860 300 900 18200 14300 31 031
1993 8277 1857 6866 300 900 18200 14300 76 076
Average 8122 231 2249 5436 1224 900 18163 769342 088
2241
7470
163592
LONG TERM WATER SUPPLY PROGRAM SUPPLY SCENARIO
As estimated by the Santa Ynez River Hydrology Model using 3 ft surcharge and BO fish releases
State Water deliveries are based on delivery estimates provided by CCWA in 2001
Water Conservation and GW recharge is left out of this version
Includes ground water recovery and 10 safety margin values in acre feet production is 18200 AFY
Filename=LTWSP2002xls SWP
Year Cachuma Desal SWP GibJun GW Recycled Total Shortage
1918 8277 2357 6366 300 900 18200 14300 80
1919 8277 2400 5865 758 900 18200 14300 80
1920 8277 2400 5560 1063 900 18200 14300 80
1921 8277 2400 5483 1140 900 18200 14300 80
1922 8277 2792 5931 300 900 18200 14300 94 094
1923 8277 2894 5829 300 900 18200 14300 99 099
1924 8277 1500 5494 2029 900 18200 14300 50 05
1925 8277 1290 5294 2439 900 18200 14300 43 043
1926 8277 1740 5406 1877 900 18200 14300 58 058
1927 8277 2550 5643 830 900 18200 14300 85 085
1928 8277 2580 5548 895 900 18200 14300 86 086
1929 8277 1680 5425 1918 900 18200 14300 56 056
1930 8232 1710 5330 2028 900 18200 14300 57 057
1931 7306 1260 4673 4061 900 18200 14300 42 042
1932 7857 1320 4713 3410 900 18200 14300 44 044
1933 8277 1140 5451 2432 900 18200 14300 38 038
1934 8277 990 5347 2686 900 18200 14300 33 033
1935 8277 1950 5528 1545 900 18200 14300 65 065
1936 8277 2460 5544 1019 900 18200 14300 82 082
1937 8277 2220 5797 1006 900 18200 14300 74 074
1938 8277 2613 6110 300 900 18200 14300 94 094
1939 8277 2640 5914 469 900 18200 14300 88 088
1940 8277 2460 5586 977 900 18200 14300 82 082
1941 8277 2318 6405 300 900 18200 14300 97 097
1942 8277 2473 6250 300 900 18200 14300 100 1
1943 8277 2534 6189 300 900 18200 14300 89 089
1944 8277 2639 6084 300 900 18200 14300 92 092
1945 8277 2700 5804 519 900 18200 14300 90 09
1946 8277 2640 5630 753 900 18200 14300 88 088
1947 8277 2250 5427 1346 900 18200 14300 75 075
1948 8277 2010 5236 1777 900 18200 14300 67 067
1949 7856 974 1950 2021 4500 900 18200 14300 65 065
1950 6760 694 2010 3336 4500 900 18200 14300 67 067
1951 5470 3000 2640 500 4500 900 17010 1190 00653787487 14300 88 088
1952 7546 2155 2880 4419 300 900 18200 14300 96 096
1953 8277 323 2700 5700 300 900 18200 14300 90 09
1954 8277 739 2490 5494 300 900 18200 14300 83 083
1955 8277 1222 2070 5431 300 900 18200 14300 69 069
1956 8234 2700 5462 904 900 18200 14300 90 09
1957 7521 2640 5411 1728 900 18200 14300 88 088
1958 7875 2700 5997 728 900 18200 14300 90 09
1959 8277 2640 5921 462 900 18200 14300 88 088
1960 8277 1890 5497 1636 900 18200 14300 63 063
1961 8277 1830 4178 3014 900 18200 14300 61 061
1962 8277 2340 4147 2536 900 18200 14300 78 078
1963 8277 2820 5537 666 900 18200 14300 94 094
1964 8277 2640 5327 1056 900 18200 14300 88 088
1965 8081 2460 5309 1450 900 18200 14300 82 082
1966 8220 2880 5639 561 900 18200 14300 96 096
1967 8277 2827 5896 300 900 18200 14300 96 096
1968 8277 2670 5675 678 900 18200 14300 89 089
1969 8277 2397 6326 300 900 18200 14300 93 093
1970 8277 2670 6036 317 900 18200 14300 89 089
1971 8277 2820 5733 470 900 18200 14300 94 094
1972 8277 2640 5443 940 900 18200 14300 88 088
1973 8277 2460 5747 816 900 18200 14300 82 082
1974 8277 2820 5785 418 900 18200 14300 94 094
1975 8277 2880 5742 401 900 18200 14300 96 096
1976 8277 2640 5515 868 900 18200 14300 88 088
1977 8277 990 5279 2754 900 18200 14300 33 033
1978 8277 2040 6052 931 900 18200 14300 68 068
1979 8277 2550 6171 302 900 18200 14300 85 085
1980 8277 2460 6188 375 900 18200 14300 82 082
1981 8277 2490 6145 388 900 18200 14300 83 083
1982 8277 2735 5988 300 900 18200 14300 94 094
1983 8277 1768 6955 300 900 18200 14300 100 1
1984 8277 2419 6304 300 900 18200 14300 100 1
1985 8277 2872 5851 300 900 18200 14300 96 096
1986 8277 2430 5703 890 900 18200 14300 81 081
1987 8277 2070 5321 1632 900 18200 14300 69 069
1988 8277 1290 5858 1875 900 18200 14300 43 043
1989 7990 1740 5641 1929 900 18200 14300 58 058
1990 6885 2365 1380 2170 4500 900 18200 14300 46 046
1991 6829 2388 870 2713 4500 900 18200 14300 29 029
1992 7997 2213 930 5860 300 900 18200 14300 31 031
1993 8277 1857 6866 300 900 18200 14300 76 076
Average 8122 211 2249 5436 1266 900 18184 769342 088
2241
7470
163592
1918 1918 1918 1918 1918 1918 1918
1919 1919 1919 1919 1919 1919 1919
1920 1920 1920 1920 1920 1920 1920
1921 1921 1921 1921 1921 1921 1921
1922 1922 1922 1922 1922 1922 1922
1923 1923 1923 1923 1923 1923 1923
1924 1924 1924 1924 1924 1924 1924
1925 1925 1925 1925 1925 1925 1925
1926 1926 1926 1926 1926 1926 1926
1927 1927 1927 1927 1927 1927 1927
1928 1928 1928 1928 1928 1928 1928
1929 1929 1929 1929 1929 1929 1929
1930 1930 1930 1930 1930 1930 1930
1931 1931 1931 1931 1931 1931 1931
1932 1932 1932 1932 1932 1932 1932
1933 1933 1933 1933 1933 1933 1933
1934 1934 1934 1934 1934 1934 1934
1935 1935 1935 1935 1935 1935 1935
1936 1936 1936 1936 1936 1936 1936
1937 1937 1937 1937 1937 1937 1937
1938 1938 1938 1938 1938 1938 1938
1939 1939 1939 1939 1939 1939 1939
1940 1940 1940 1940 1940 1940 1940
1941 1941 1941 1941 1941 1941 1941
1942 1942 1942 1942 1942 1942 1942
1943 1943 1943 1943 1943 1943 1943
1944 1944 1944 1944 1944 1944 1944
1945 1945 1945 1945 1945 1945 1945
1946 1946 1946 1946 1946 1946 1946
1947 1947 1947 1947 1947 1947 1947
1948 1948 1948 1948 1948 1948 1948
1949 1949 1949 1949 1949 1949 1949
1950 1950 1950 1950 1950 1950 1950
1951 1951 1951 1951 1951 1951 1951
1952 1952 1952 1952 1952 1952 1952
1953 1953 1953 1953 1953 1953 1953
1954 1954 1954 1954 1954 1954 1954
1955 1955 1955 1955 1955 1955 1955
1956 1956 1956 1956 1956 1956 1956
1957 1957 1957 1957 1957 1957 1957
1958 1958 1958 1958 1958 1958 1958
1959 1959 1959 1959 1959 1959 1959
1960 1960 1960 1960 1960 1960 1960
1961 1961 1961 1961 1961 1961 1961
1962 1962 1962 1962 1962 1962 1962
1963 1963 1963 1963 1963 1963 1963
1964 1964 1964 1964 1964 1964 1964
1965 1965 1965 1965 1965 1965 1965
1966 1966 1966 1966 1966 1966 1966
1967 1967 1967 1967 1967 1967 1967
1968 1968 1968 1968 1968 1968 1968
1969 1969 1969 1969 1969 1969 1969
1970 1970 1970 1970 1970 1970 1970
1971 1971 1971 1971 1971 1971 1971
1972 1972 1972 1972 1972 1972 1972
1973 1973 1973 1973 1973 1973 1973
1974 1974 1974 1974 1974 1974 1974
1975 1975 1975 1975 1975 1975 1975
1976 1976 1976 1976 1976 1976 1976
1977 1977 1977 1977 1977 1977 1977
1978 1978 1978 1978 1978 1978 1978
1979 1979 1979 1979 1979 1979 1979
1980 1980 1980 1980 1980 1980 1980
1981 1981 1981 1981 1981 1981 1981
1982 1982 1982 1982 1982 1982 1982
1983 1983 1983 1983 1983 1983 1983
1984 1984 1984 1984 1984 1984 1984
1985 1985 1985 1985 1985 1985 1985
1986 1986 1986 1986 1986 1986 1986
1987 1987 1987 1987 1987 1987 1987
1988 1988 1988 1988 1988 1988 1988
1989 1989 1989 1989 1989 1989 1989
1990 1990 1990 1990 1990 1990 1990
1991 1991 1991 1991 1991 1991 1991
1992 1992 1992 1992 1992 1992 1992
1993 1993 1993 1993 1993 1993 1993
Cachuma
Gibraltar
Groundwater
Recycled Water
State Water
Desalination
Detailed Simple
Maximum Capacity () Maximum Capacity (AF) 1980s Current
Lake Cachuma 32 8277 Cachuma 9700 8577
Gibraltar Reservoir 19 5000 Gibraltar 7400 6000
Mission Tunnel 4 1000 Groundwater 4500 4150
State Water Project 12 3000 Recycled Water 800
Groundwater 16 4150 State Water 3000
Recycled Water 3 800 Desalination 3125
Montecito Transfer 1 300 Totals 21600 25652
Desalination 12 3125
100 25652
Lake Cachuma
Gibraltar Reservoir
Mission Tunnel
State Water Project
Groundwater
Recycled Water
Montecito Transfer
Desalination
In our review of the FMP EIREIS we had a small discussion on how to characterize our water supplies in particular State Water In that discussion I commented that the average State Water delivery did not apply to how we did our water supply planning a
The supply target in this analysis is 18200 AFY with a goal of having no shortage greater than 1820 (10) in any year The critical year is 1951 This supply target was developed for us by our Community Development Department for the LTWSP and include
The Cityrsquos supply strategy as modeled is to
use all surface water supply first with a minimum (300 AFY) amount of local groundwater
use available State Water to get us to the supply target
if enough State Water is not available meet the supply target with local groundwater up to 4500 AFY
if that is not enough turn on the desal plant with a goal of having no shortage greater than 1820 AFY in the critical year
The modeling results presented in the first spreadsheet page (LTWSP2002) and the chart shows that our supplies meet the overall production target and satisfy the goal of having a shortage less than 10 in the critical year
In this analysis State Water is an important element in meeting the annual target and the critical year shortage goal The average delivery of State Water is meaningless in this analysis Also with the Cityrsquos approach our average delivery of State Wat
Another important consideration is that the estimates of State Water deliveries based on history result in historical critical periods for the Santa Ynez River and the State Water Project not coinciding I think it is acceptable for one to do this analys
I am not sure where this leaves us with respect to what we put in the FMP EISEIR for our individual water supplies For the City of Santa Barbara input I can give John Gray the bottom line of the spreadsheet with our averages for the 76 year period T
One value of the Cityrsquos approach is that it gives some meaning to the shortages that would happen (or at least are modeled to happen) if the surcharge is not included or other changes to Cachuma Project yield are suggested Our goal again is a shortage
LONG TERM WATER SUPPLY PROGRAM SUPPLY SCENARIO
As estimated by the Santa Ynez River Hydrology Model using 3 ft surcharge and BO fish releases
State Water critical period is moved to coincide with Cachuma critical period
Water Conservation and GW recharge is left out of this version
Includes ground water recovery and 10 safety margin values in acre feet production is 18200 AFY
Filename=LTWSP2002xls SWP
Year Cachuma Desal SWP GibJun GW Recycled Total Shortage
1918 8277 2357 6366 300 900 18200 14300 80
1919 8277 2400 5865 758 900 18200 14300 80
1920 8277 2400 5560 1063 900 18200 14300 80
1921 8277 2400 5483 1140 900 18200 14300 80
1922 8277 2792 5931 300 900 18200 14300 94 094
1923 8277 2894 5829 300 900 18200 14300 99 099
1924 8277 1500 5494 2029 900 18200 14300 50 05
1925 8277 1290 5294 2439 900 18200 14300 43 043
1926 8277 1740 5406 1877 900 18200 14300 58 058
1927 8277 2550 5643 830 900 18200 14300 85 085
1928 8277 2580 5548 895 900 18200 14300 86 086
1929 8277 1680 5425 1918 900 18200 14300 56 056
1930 8232 2250 5330 1488 900 18200 14300 75 057
1931 7306 2010 4673 3311 900 18200 14300 67 042
1932 7857 1950 4713 2780 900 18200 14300 65 044
1933 8277 2010 5451 1562 900 18200 14300 67 038
1934 8277 2640 5347 1036 900 18200 14300 88 033
1935 8277 1950 5528 1545 900 18200 14300 65 065
1936 8277 2460 5544 1019 900 18200 14300 82 082
1937 8277 2220 5797 1006 900 18200 14300 74 074
1938 8277 2613 6110 300 900 18200 14300 94 094
1939 8277 2640 5914 469 900 18200 14300 88 088
1940 8277 2460 5586 977 900 18200 14300 82 082
1941 8277 2318 6405 300 900 18200 14300 97 097
1942 8277 2473 6250 300 900 18200 14300 100 1
1943 8277 2534 6189 300 900 18200 14300 89 089
1944 8277 2639 6084 300 900 18200 14300 92 092
1945 8277 2700 5804 519 900 18200 14300 90 09
1946 8277 2640 5630 753 900 18200 14300 88 088
1947 8277 1710 5427 1886 900 18200 14300 57 075
1948 8277 1260 5236 2527 900 18200 14300 42 067
1949 7856 1604 1320 2021 4500 900 18200 -0 14300 44 065
1950 6760 1564 1140 3336 4500 900 18200 0 14300 38 067
1951 5470 3000 990 500 4500 900 15360 2840 01560380894 14300 33 088
1952 7546 2155 2880 4419 300 900 18200 14300 96 096
1953 8277 323 2700 5700 300 900 18200 14300 90 09
1954 8277 739 2490 5494 300 900 18200 14300 83 083
1955 8277 1222 2070 5431 300 900 18200 14300 69 069
1956 8234 2700 5462 904 900 18200 14300 90 09
1957 7521 2640 5411 1728 900 18200 14300 88 088
1958 7875 2700 5997 728 900 18200 14300 90 09
1959 8277 2640 5921 462 900 18200 14300 88 088
1960 8277 1890 5497 1636 900 18200 14300 63 063
1961 8277 1830 4178 3014 900 18200 14300 61 061
1962 8277 2340 4147 2536 900 18200 14300 78 078
1963 8277 2820 5537 666 900 18200 14300 94 094
1964 8277 2640 5327 1056 900 18200 14300 88 088
1965 8081 2460 5309 1450 900 18200 14300 82 082
1966 8220 2880 5639 561 900 18200 14300 96 096
1967 8277 2827 5896 300 900 18200 14300 96 096
1968 8277 2670 5675 678 900 18200 14300 89 089
1969 8277 2397 6326 300 900 18200 14300 93 093
1970 8277 2670 6036 317 900 18200 14300 89 089
1971 8277 2820 5733 470 900 18200 14300 94 094
1972 8277 2640 5443 940 900 18200 14300 88 088
1973 8277 2460 5747 816 900 18200 14300 82 082
1974 8277 2820 5785 418 900 18200 14300 94 094
1975 8277 2880 5742 401 900 18200 14300 96 096
1976 8277 2640 5515 868 900 18200 14300 88 088
1977 8277 990 5279 2754 900 18200 14300 33 033
1978 8277 2040 6052 931 900 18200 14300 68 068
1979 8277 2550 6171 302 900 18200 14300 85 085
1980 8277 2460 6188 375 900 18200 14300 82 082
1981 8277 2490 6145 388 900 18200 14300 83 083
1982 8277 2735 5988 300 900 18200 14300 94 094
1983 8277 1768 6955 300 900 18200 14300 100 1
1984 8277 2419 6304 300 900 18200 14300 100 1
1985 8277 2872 5851 300 900 18200 14300 96 096
1986 8277 2430 5703 890 900 18200 14300 81 081
1987 8277 2070 5321 1632 900 18200 14300 69 069
1988 8277 1290 5858 1875 900 18200 14300 43 043
1989 7990 1740 5641 1929 900 18200 14300 58 058
1990 6885 2365 1380 2170 4500 900 18200 14300 46 046
1991 6829 2388 870 2713 4500 900 18200 14300 29 029
1992 7997 2213 930 5860 300 900 18200 14300 31 031
1993 8277 1857 6866 300 900 18200 14300 76 076
Average 8122 231 2249 5436 1224 900 18163 769342 088
2241
7470
163592
Page 8: PUBLIC WORKS DEPARTMENT WATER RESOURCES DIVISION …...mountain • Supply ranges from ... Water Supplies –State Water • A small, but useful part of our water supply • Both the

Text of Accompanying Email

Chart1

Maximum Capacity (AF)
8277
5000
1000
3000
4150
800
300
3125

Pie Chart Data

Pie Chart Data

Cachuma8277 AF
Gibraltar6000 AF
Groundwater4150 AF
State Water3000 AF
Recycled800 AF
Desalination3125 AF
Current
Current Water Supply(AF of Capacity)
Gibraltar7400 AF
Cachuma9700 AF
Groundwater4500 AF
1980s
1980s Water Supply(AF of Capacity)

SantaBarbaraCAgovWater4

Historical Backgroundbull Gibraltar Pass Through Agreement

(1989)- Gibraltar Enlargement Deferred- City to ldquoPass Throughrdquo Gibraltar

Water to Cachuma

bull 1987 ndash 1991 Drought - 50 Cutbacks Sought - State Water Bond Approval- Advisory Vote for Desal

Gibraltar Reservoir1989

SantaBarbaraCAgovWater5

Historical BackgroundLong-Term Water Supply Program (1994)

- Added Recycled WaterDesal amp State Water

- Critical Period Planning- Demand Estimate per

General Plan Update (1989)- Water Conservation savings

of 1500 AFY planned

LTWSP Water Supply(AF of Capacity)

Cachuma8277 AF

Gibraltar6000 AF

Groundwater4150 AF

State Water3000 AF

Recycled800 AF

Desalination3125 AF

Chart2

Cachuma8277 AF
Gibraltar6000 AF
Groundwater4150 AF
State Water3000 AF
Recycled800 AF
Desalination3125 AF
Current
LTWSP Water Supply(AF of Capacity)
8577
6000
4150
800
3000
3125

ltwspCht

ampA
Page ampP
Recycled
Cachuma
Gib etc
SWP
GW
Desal
Shortage
Water Supply (AF)
Figure 1 Long-Term Water Supply ProgramUpdated to include surchararge fish releases and 1990 drought
900
82773366
6366
23566634
300
900
82773366
5865
2400
7576634
900
82773366
5560
2400
10626634
900
82773366
5483
2400
11396634
900
82773366
5931
27916634
300
900
82773366
5829
28936634
300
900
82773366
5494
1500
20286634
900
82773366
5294
1290
24386634
900
82773366
5406
1740
18766634
900
82773366
5643
2550
8296634
900
82773366
5548
2580
8946634
900
82773366
5425
1680
19176634
900
8231514135
5330
1710
2028485865
900
7305562347
4673246
1260
4061191653
900
7856777469
471278
1320
3410442531
900
82773366
5451
1140
24316634
900
82773366
5347
990
26856634
900
82773366
5528
1950
15446634
900
82773366
5544
2460
10186634
900
82773366
5797
2220
10056634
900
82773366
6110
26126634
300
900
82773366
5914
2640
4686634
900
82773366
5586
2460
9766634
900
82773366
6405
23176634
300
900
82773366
6250
24726634
300
900
82773366
6189
25336634
300
900
82773366
6084
26386634
300
900
82773366
5804
2700
5186634
900
82773366
5630
2640
7526634
900
82773366
5427
2250
13456634
900
82773366
5236
2010
17766634
900
7855786017
2020508
1950
4500
974
900
6759906438
3335608
2010
4500
694485562
900
547040079
500
2640
4500
3000
1189893227
900
7545802755
441926
2880
300
2155
900
82773366
5700
2700
300
323
900
82773366
5494
2490
300
739
900
82773366
5431
2070
300
1222
900
8233699836
5462
2700
904300164
900
7520604423
5411
2640
1728395577
900
787483284
5997
2700
72816716
900
82773366
5921
2640
4616634
900
82773366
5497
1890
16356634
900
82773366
4178353
1830
30143104
900
82773366
4147065
2340
25355984
900
82773366
5537
2820
6656634
900
82773366
5327
2640
10556634
900
8080887468
5309
2460
1450112532
900
8219636025
5639
2880
561363975
900
82773366
5896
28266634
300
900
82773366
5675
2670
6776634
900
82773366
6326
23966634
300
900
82773366
6036
2670
3166634
900
82773366
5733
2820
4696634
900
82773366
5443
2640
9396634
900
82773366
5747
2460
8156634
900
82773366
5785
2820
4176634
900
82773366
5742
2880
4006634
900
82773366
5515
2640
8676634
900
82773366
5279
990
27536634
900
82773366
6052
2040
9306634
900
82773366
6171
2550
3016634
900
82773366
6188
2460
3746634
900
82773366
6145
2490
3876634
900
82773366
5988
27346634
300
900
82773366
6955
17676634
300
900
82773366
6304
24186634
300
900
82773366
5851
28716634
300
900
82773366
5703
2430
8896634
900
82773366
5321
2070
16316634
900
82773366
5858
1290
18746634
900
7990356312
5641
1740
1928643688
900
6885154509
2170335
1380
4500
2364510491
900
682933383
271296
870
4500
238770617
900
7997267505
5860
930
300
2213
900
82773366
6866
18566634
300

LTWSP2002

LTWSP2002 (coincide)

Text of Accompanying Email

Chart1

Maximum Capacity (AF)
8277
5000
1000
3000
4150
800
300
3125

Pie Chart Data

Pie Chart Data

Cachuma8277 AF
Gibraltar6000 AF
Groundwater4150 AF
State Water3000 AF
Recycled800 AF
Desalination3125 AF
Current
Current Water Supply(AF of Capacity)
Gibraltar7400 AF
Cachuma9700 AF
Groundwater4500 AF
1980s
1980s Water Supply(AF of Capacity)

SantaBarbaraCAgovWater6

City of Santa Barbara Water Demand(Acre Feet of Production by Calendar Year - Potable + Recycled)

0

2500

5000

7500

10000

12500

15000

17500

20000

1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010

Figure ___

Total System Production (AF)

12 Months Ending

13374

February 28 2011

Post-DroughtPre-Drought Drought

SantaBarbaraCAgovWater7

Water Supplies - Cachumabull Primary City

Water Supply

bull Multi-Year SourceA few dry years notan issue

bull 8277 AFYCurrent Entitlement

bull 7863 AFYProjected Entitlement (2030)

SantaBarbaraCAgovWater8

Water Supplies - Cachuma

0

50000

100000

150000

200000

250000

1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011Water Year

Historical StorageVolumes1987-1993 Period

Recent History of Lake Cachuma Storage Levels (AF)With 1987-1993 Period Shown for Comparison

Figure ____

SantaBarbaraCAgovWater9

Water Supplies - Gibraltarbull ldquoPass Throughrdquo

implementationin progress

bull Modelingunder review

bull Conservative planning assumptions used pending modeling results

bull Sedimentation management study planned

SantaBarbaraCAgovWater10

Water Supplies ndash Mission Tunnelbull Infiltration from

percolating groundwateron both sides of themountain

bull Supply ranges from500 to 2375 AFY

bull Average contribution1125 AFY

SantaBarbaraCAgovWater11

Water Supplies ndash State Waterbull A small but useful part of our water

supply

bull Both the water amp the pipeline have value

bull Cityrsquos maximum delivery amount - 3300 AFY

bull Deliveries subject to availability

SantaBarbaraCAgovWater12

Water Supplies ndash State Waterbull Projections based on DWR

modeling using long-term databull No Delta or storage

improvementsbull Environmental limits remain in

effectbull Climate change effects assumed

SantaBarbaraCAgovWater13

Water Supplies - Groundwater

SantaBarbaraCAgovWater14

Water Supplies ndash Groundwaterbull Pumping occurs in

Downtown amp OuterState Street areas

bull 1300 AFY safe yieldbull Average City pumping

assumed at ~1100 AFYbull Maximum of 4150 AFY during drought

Ortega Groundwater Treatment Plant

SantaBarbaraCAgovWater15

Water Supplies ndash Recycled WaterRecycled Water Distribution System

SantaBarbaraCAgovWater16

Water Supplies ndash Recycled Waterbull Displaces use of potable

water amp extends water supplybull Current connected

demand 800 AFYbull 300 AFY potential demand amp capacity identifiedbull Target demand 1100 AFYbull Blending an economical solution for reducing mineral

contentbull Policy issues related to blending

SantaBarbaraCAgovWater17

Water Supplies ndash Recycled Water

SantaBarbaraCAgovWater18

Recycled Water Blending bull Filterability (turbidity) - solution identifiedbull Mineral Content (salts) separate issue -

- Blending $180AF added operating cost- MFRO $341AF added cost + $46 million

capitalbull Proposed Policy ldquoContingency Plan to

eliminate blending with goal to be ready to implement plan based on economic regulatory or water supply requirementsrdquo

SantaBarbaraCAgovWater19

Water Supplies - Desalination

bull Reliable butexpensive source

bull $177 million toreactivate if needed

bull Important to keepfor use in case ofextended drought

bull Proposed Planning Goal Avoid use until year six of Critical Drought Period

SantaBarbaraCAgovWater20

Demand Managementbull Declining demand

- Best Management Practices (CUWCC)- Conservation Program- 20 x 2020- Plumbing Code amp Appliance Standards

bull Projected development - 800 to 900 AFY bull Water Conservation Technical Evaluation

SantaBarbaraCAgovWater21

Demand Projections

12000

12500

13000

13500

14000

14500

15000

2010 2012 2014 2016 2018 2020 2022 2024 2026 2028 2030

Plan SB Demand (No Plumbing Code or Conservation Effects)Plumbing Code Effects OnlyPlumbing Code + Program B20 X 2020 Trend Line20 X 2020 Regulatory Limit

Water System Demand Projections (AFY)

SantaBarbaraCAgovWater22

Water Supply Planning Target

Projected Demand 14000Safety Margin (10) + 1400

Water Supply Target = 15400 AFY

SantaBarbaraCAgovWater23

Water Supply Planning Conceptsbull Planning for 6-Year Critical Drought Periodbull Water Supply Modeling - Using Historical

Data with Current Water Supply Sources and Projected Demands

bull Ongoing Conservation vs Short Term Planned Demand Reductions for Extraordinary Situations

SantaBarbaraCAgovWater24

Water Supply Performance

SantaBarbaraCAgovWater25

SantaBarbaraCAgovWater26

SantaBarbaraCAgovWater27

SantaBarbaraCAgovWater28

Key Policy Issuesbull Achieve 20 x 2020 through BMPs Additional

Conservation Measures amp Recycled Waterbull Planning for a 6-Year Duration Critical Drought

- Manage supplies to avoid use of Desal until year six- Water Banking Purchases- Planned Demand Reductions 10 to 15- Recycled Water Expansion

bull Recycled Water Blending bull Sedimentation Management

SantaBarbaraCAgovWater29

Next Stepsbull Finalize updated Long-Term Water

Supply Plan- April 11 Final Comments from Water

Commission- Environmental Review

bull Prepare Urban Water Management Plan Update per State Requirements

bull Target Adoption Date for LTWSP amp UWMP - June 14 2011

SantaBarbaraCAgovWater30

Discussion amp Feedback

SantaBarbaraCAgovWater31

SantaBarbaraCAgovWater32

SantaBarbaraCAgovWater33

SantaBarbaraCAgovWater34

SantaBarbaraCAgovWater35

SantaBarbaraCAgovWater36

Upper Santa Ynez River Operations Agreement(ldquoPass Through Agreementrdquo)

SantaBarbaraCAgovWater37

Context of 1989 Agreementbull City water supply shortage identified ndash Gibraltar

vulnerable to siltation

bull Solution Raise Gibraltar Dam 20rsquo to 40rsquo

bull Challenges by downstream and environmental interests

bull Cachuma enlargement under consideration

SantaBarbaraCAgovWater38

Parties to the Agreement

bull City of Santa Barbarabull Carpinteria Valley Water Districtbull Goleta Water Districtbull Montecito Water Districtbull Santa Ynez River Water Conservation Districtbull SYRWCD Improvement District No 1

Consent and Acknowledgement by US Bureau of Reclamation

SantaBarbaraCAgovWater39

Pass Through Summer no inflow

Current volume (reflects on-going siltation since 1988)

1988 Reservoir volume

Note different siltation levels

SantaBarbaraCAgovWater40

Smaller Reservoir Spills Sooner1988 Reservoir volume

Current Reservoir volume

SantaBarbaraCAgovWater41

Difference is Stored in Cachuma as Gibraltar WaterBase Reservoir

Actual Reservoir

SantaBarbaraCAgovWater42

  • Long Term Water Supply Plan Adaptive Management
  • Overview
  • Historical Background
  • Historical Background
  • Historical Background
  • Slide Number 6
  • Water Supplies - Cachuma
  • Water Supplies - Cachuma
  • Water Supplies - Gibraltar
  • Water Supplies ndash Mission Tunnel
  • Water Supplies ndash State Water
  • Water Supplies ndash State Water
  • Water Supplies - Groundwater
  • Water Supplies ndash Groundwater
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Recycled Water Blending
  • Water Supplies - Desalination
  • Demand Management
  • Demand Projections
  • Water Supply Planning Target
  • Water Supply Planning Concepts
  • Water Supply Performance
  • Slide Number 25
  • Slide Number 26
  • Slide Number 27
  • Key Policy Issues
  • Next Steps
  • Discussion amp Feedback
  • Slide Number 31
  • Slide Number 32
  • Slide Number 33
  • Slide Number 34
  • Slide Number 35
  • Slide Number 36
  • Context of 1989 Agreement
  • Parties to the Agreement
  • Pass Through Summer no inflow
  • Smaller Reservoir Spills Sooner
  • Difference is Stored in Cachuma as Gibraltar Water
  • Slide Number 42
Detailed Simple
Maximum Capacity () Maximum Capacity (AF) 1980s Current
Lake Cachuma 32 8277 Cachuma 9700 8577
Gibraltar Reservoir 19 5000 Gibraltar 7400 6000
Mission Tunnel 4 1000 Groundwater 4500 4150
State Water Project 12 3000 Recycled Water 800
Groundwater 16 4150 State Water 3000
Recycled Water 3 800 Desalination 3125
Montecito Transfer 1 300 Totals 21600 25652
Desalination 12 3125
100 25652
Lake Cachuma
Gibraltar Reservoir
Mission Tunnel
State Water Project
Groundwater
Recycled Water
Montecito Transfer
Desalination
In our review of the FMP EIREIS we had a small discussion on how to characterize our water supplies in particular State Water In that discussion I commented that the average State Water delivery did not apply to how we did our water supply planning a
The supply target in this analysis is 18200 AFY with a goal of having no shortage greater than 1820 (10) in any year The critical year is 1951 This supply target was developed for us by our Community Development Department for the LTWSP and include
The Cityrsquos supply strategy as modeled is to
use all surface water supply first with a minimum (300 AFY) amount of local groundwater
use available State Water to get us to the supply target
if enough State Water is not available meet the supply target with local groundwater up to 4500 AFY
if that is not enough turn on the desal plant with a goal of having no shortage greater than 1820 AFY in the critical year
The modeling results presented in the first spreadsheet page (LTWSP2002) and the chart shows that our supplies meet the overall production target and satisfy the goal of having a shortage less than 10 in the critical year
In this analysis State Water is an important element in meeting the annual target and the critical year shortage goal The average delivery of State Water is meaningless in this analysis Also with the Cityrsquos approach our average delivery of State Wat
Another important consideration is that the estimates of State Water deliveries based on history result in historical critical periods for the Santa Ynez River and the State Water Project not coinciding I think it is acceptable for one to do this analys
I am not sure where this leaves us with respect to what we put in the FMP EISEIR for our individual water supplies For the City of Santa Barbara input I can give John Gray the bottom line of the spreadsheet with our averages for the 76 year period T
One value of the Cityrsquos approach is that it gives some meaning to the shortages that would happen (or at least are modeled to happen) if the surcharge is not included or other changes to Cachuma Project yield are suggested Our goal again is a shortage
LONG TERM WATER SUPPLY PROGRAM SUPPLY SCENARIO
As estimated by the Santa Ynez River Hydrology Model using 3 ft surcharge and BO fish releases
State Water critical period is moved to coincide with Cachuma critical period
Water Conservation and GW recharge is left out of this version
Includes ground water recovery and 10 safety margin values in acre feet production is 18200 AFY
Filename=LTWSP2002xls SWP
Year Cachuma Desal SWP GibJun GW Recycled Total Shortage
1918 8277 2357 6366 300 900 18200 14300 80
1919 8277 2400 5865 758 900 18200 14300 80
1920 8277 2400 5560 1063 900 18200 14300 80
1921 8277 2400 5483 1140 900 18200 14300 80
1922 8277 2792 5931 300 900 18200 14300 94 094
1923 8277 2894 5829 300 900 18200 14300 99 099
1924 8277 1500 5494 2029 900 18200 14300 50 05
1925 8277 1290 5294 2439 900 18200 14300 43 043
1926 8277 1740 5406 1877 900 18200 14300 58 058
1927 8277 2550 5643 830 900 18200 14300 85 085
1928 8277 2580 5548 895 900 18200 14300 86 086
1929 8277 1680 5425 1918 900 18200 14300 56 056
1930 8232 2250 5330 1488 900 18200 14300 75 057
1931 7306 2010 4673 3311 900 18200 14300 67 042
1932 7857 1950 4713 2780 900 18200 14300 65 044
1933 8277 2010 5451 1562 900 18200 14300 67 038
1934 8277 2640 5347 1036 900 18200 14300 88 033
1935 8277 1950 5528 1545 900 18200 14300 65 065
1936 8277 2460 5544 1019 900 18200 14300 82 082
1937 8277 2220 5797 1006 900 18200 14300 74 074
1938 8277 2613 6110 300 900 18200 14300 94 094
1939 8277 2640 5914 469 900 18200 14300 88 088
1940 8277 2460 5586 977 900 18200 14300 82 082
1941 8277 2318 6405 300 900 18200 14300 97 097
1942 8277 2473 6250 300 900 18200 14300 100 1
1943 8277 2534 6189 300 900 18200 14300 89 089
1944 8277 2639 6084 300 900 18200 14300 92 092
1945 8277 2700 5804 519 900 18200 14300 90 09
1946 8277 2640 5630 753 900 18200 14300 88 088
1947 8277 1710 5427 1886 900 18200 14300 57 075
1948 8277 1260 5236 2527 900 18200 14300 42 067
1949 7856 1604 1320 2021 4500 900 18200 -0 14300 44 065
1950 6760 1564 1140 3336 4500 900 18200 0 14300 38 067
1951 5470 3000 990 500 4500 900 15360 2840 01560380894 14300 33 088
1952 7546 2155 2880 4419 300 900 18200 14300 96 096
1953 8277 323 2700 5700 300 900 18200 14300 90 09
1954 8277 739 2490 5494 300 900 18200 14300 83 083
1955 8277 1222 2070 5431 300 900 18200 14300 69 069
1956 8234 2700 5462 904 900 18200 14300 90 09
1957 7521 2640 5411 1728 900 18200 14300 88 088
1958 7875 2700 5997 728 900 18200 14300 90 09
1959 8277 2640 5921 462 900 18200 14300 88 088
1960 8277 1890 5497 1636 900 18200 14300 63 063
1961 8277 1830 4178 3014 900 18200 14300 61 061
1962 8277 2340 4147 2536 900 18200 14300 78 078
1963 8277 2820 5537 666 900 18200 14300 94 094
1964 8277 2640 5327 1056 900 18200 14300 88 088
1965 8081 2460 5309 1450 900 18200 14300 82 082
1966 8220 2880 5639 561 900 18200 14300 96 096
1967 8277 2827 5896 300 900 18200 14300 96 096
1968 8277 2670 5675 678 900 18200 14300 89 089
1969 8277 2397 6326 300 900 18200 14300 93 093
1970 8277 2670 6036 317 900 18200 14300 89 089
1971 8277 2820 5733 470 900 18200 14300 94 094
1972 8277 2640 5443 940 900 18200 14300 88 088
1973 8277 2460 5747 816 900 18200 14300 82 082
1974 8277 2820 5785 418 900 18200 14300 94 094
1975 8277 2880 5742 401 900 18200 14300 96 096
1976 8277 2640 5515 868 900 18200 14300 88 088
1977 8277 990 5279 2754 900 18200 14300 33 033
1978 8277 2040 6052 931 900 18200 14300 68 068
1979 8277 2550 6171 302 900 18200 14300 85 085
1980 8277 2460 6188 375 900 18200 14300 82 082
1981 8277 2490 6145 388 900 18200 14300 83 083
1982 8277 2735 5988 300 900 18200 14300 94 094
1983 8277 1768 6955 300 900 18200 14300 100 1
1984 8277 2419 6304 300 900 18200 14300 100 1
1985 8277 2872 5851 300 900 18200 14300 96 096
1986 8277 2430 5703 890 900 18200 14300 81 081
1987 8277 2070 5321 1632 900 18200 14300 69 069
1988 8277 1290 5858 1875 900 18200 14300 43 043
1989 7990 1740 5641 1929 900 18200 14300 58 058
1990 6885 2365 1380 2170 4500 900 18200 14300 46 046
1991 6829 2388 870 2713 4500 900 18200 14300 29 029
1992 7997 2213 930 5860 300 900 18200 14300 31 031
1993 8277 1857 6866 300 900 18200 14300 76 076
Average 8122 231 2249 5436 1224 900 18163 769342 088
2241
7470
163592
LONG TERM WATER SUPPLY PROGRAM SUPPLY SCENARIO
As estimated by the Santa Ynez River Hydrology Model using 3 ft surcharge and BO fish releases
State Water deliveries are based on delivery estimates provided by CCWA in 2001
Water Conservation and GW recharge is left out of this version
Includes ground water recovery and 10 safety margin values in acre feet production is 18200 AFY
Filename=LTWSP2002xls SWP
Year Cachuma Desal SWP GibJun GW Recycled Total Shortage
1918 8277 2357 6366 300 900 18200 14300 80
1919 8277 2400 5865 758 900 18200 14300 80
1920 8277 2400 5560 1063 900 18200 14300 80
1921 8277 2400 5483 1140 900 18200 14300 80
1922 8277 2792 5931 300 900 18200 14300 94 094
1923 8277 2894 5829 300 900 18200 14300 99 099
1924 8277 1500 5494 2029 900 18200 14300 50 05
1925 8277 1290 5294 2439 900 18200 14300 43 043
1926 8277 1740 5406 1877 900 18200 14300 58 058
1927 8277 2550 5643 830 900 18200 14300 85 085
1928 8277 2580 5548 895 900 18200 14300 86 086
1929 8277 1680 5425 1918 900 18200 14300 56 056
1930 8232 1710 5330 2028 900 18200 14300 57 057
1931 7306 1260 4673 4061 900 18200 14300 42 042
1932 7857 1320 4713 3410 900 18200 14300 44 044
1933 8277 1140 5451 2432 900 18200 14300 38 038
1934 8277 990 5347 2686 900 18200 14300 33 033
1935 8277 1950 5528 1545 900 18200 14300 65 065
1936 8277 2460 5544 1019 900 18200 14300 82 082
1937 8277 2220 5797 1006 900 18200 14300 74 074
1938 8277 2613 6110 300 900 18200 14300 94 094
1939 8277 2640 5914 469 900 18200 14300 88 088
1940 8277 2460 5586 977 900 18200 14300 82 082
1941 8277 2318 6405 300 900 18200 14300 97 097
1942 8277 2473 6250 300 900 18200 14300 100 1
1943 8277 2534 6189 300 900 18200 14300 89 089
1944 8277 2639 6084 300 900 18200 14300 92 092
1945 8277 2700 5804 519 900 18200 14300 90 09
1946 8277 2640 5630 753 900 18200 14300 88 088
1947 8277 2250 5427 1346 900 18200 14300 75 075
1948 8277 2010 5236 1777 900 18200 14300 67 067
1949 7856 974 1950 2021 4500 900 18200 14300 65 065
1950 6760 694 2010 3336 4500 900 18200 14300 67 067
1951 5470 3000 2640 500 4500 900 17010 1190 00653787487 14300 88 088
1952 7546 2155 2880 4419 300 900 18200 14300 96 096
1953 8277 323 2700 5700 300 900 18200 14300 90 09
1954 8277 739 2490 5494 300 900 18200 14300 83 083
1955 8277 1222 2070 5431 300 900 18200 14300 69 069
1956 8234 2700 5462 904 900 18200 14300 90 09
1957 7521 2640 5411 1728 900 18200 14300 88 088
1958 7875 2700 5997 728 900 18200 14300 90 09
1959 8277 2640 5921 462 900 18200 14300 88 088
1960 8277 1890 5497 1636 900 18200 14300 63 063
1961 8277 1830 4178 3014 900 18200 14300 61 061
1962 8277 2340 4147 2536 900 18200 14300 78 078
1963 8277 2820 5537 666 900 18200 14300 94 094
1964 8277 2640 5327 1056 900 18200 14300 88 088
1965 8081 2460 5309 1450 900 18200 14300 82 082
1966 8220 2880 5639 561 900 18200 14300 96 096
1967 8277 2827 5896 300 900 18200 14300 96 096
1968 8277 2670 5675 678 900 18200 14300 89 089
1969 8277 2397 6326 300 900 18200 14300 93 093
1970 8277 2670 6036 317 900 18200 14300 89 089
1971 8277 2820 5733 470 900 18200 14300 94 094
1972 8277 2640 5443 940 900 18200 14300 88 088
1973 8277 2460 5747 816 900 18200 14300 82 082
1974 8277 2820 5785 418 900 18200 14300 94 094
1975 8277 2880 5742 401 900 18200 14300 96 096
1976 8277 2640 5515 868 900 18200 14300 88 088
1977 8277 990 5279 2754 900 18200 14300 33 033
1978 8277 2040 6052 931 900 18200 14300 68 068
1979 8277 2550 6171 302 900 18200 14300 85 085
1980 8277 2460 6188 375 900 18200 14300 82 082
1981 8277 2490 6145 388 900 18200 14300 83 083
1982 8277 2735 5988 300 900 18200 14300 94 094
1983 8277 1768 6955 300 900 18200 14300 100 1
1984 8277 2419 6304 300 900 18200 14300 100 1
1985 8277 2872 5851 300 900 18200 14300 96 096
1986 8277 2430 5703 890 900 18200 14300 81 081
1987 8277 2070 5321 1632 900 18200 14300 69 069
1988 8277 1290 5858 1875 900 18200 14300 43 043
1989 7990 1740 5641 1929 900 18200 14300 58 058
1990 6885 2365 1380 2170 4500 900 18200 14300 46 046
1991 6829 2388 870 2713 4500 900 18200 14300 29 029
1992 7997 2213 930 5860 300 900 18200 14300 31 031
1993 8277 1857 6866 300 900 18200 14300 76 076
Average 8122 211 2249 5436 1266 900 18184 769342 088
2241
7470
163592
1918 1918 1918 1918 1918 1918 1918
1919 1919 1919 1919 1919 1919 1919
1920 1920 1920 1920 1920 1920 1920
1921 1921 1921 1921 1921 1921 1921
1922 1922 1922 1922 1922 1922 1922
1923 1923 1923 1923 1923 1923 1923
1924 1924 1924 1924 1924 1924 1924
1925 1925 1925 1925 1925 1925 1925
1926 1926 1926 1926 1926 1926 1926
1927 1927 1927 1927 1927 1927 1927
1928 1928 1928 1928 1928 1928 1928
1929 1929 1929 1929 1929 1929 1929
1930 1930 1930 1930 1930 1930 1930
1931 1931 1931 1931 1931 1931 1931
1932 1932 1932 1932 1932 1932 1932
1933 1933 1933 1933 1933 1933 1933
1934 1934 1934 1934 1934 1934 1934
1935 1935 1935 1935 1935 1935 1935
1936 1936 1936 1936 1936 1936 1936
1937 1937 1937 1937 1937 1937 1937
1938 1938 1938 1938 1938 1938 1938
1939 1939 1939 1939 1939 1939 1939
1940 1940 1940 1940 1940 1940 1940
1941 1941 1941 1941 1941 1941 1941
1942 1942 1942 1942 1942 1942 1942
1943 1943 1943 1943 1943 1943 1943
1944 1944 1944 1944 1944 1944 1944
1945 1945 1945 1945 1945 1945 1945
1946 1946 1946 1946 1946 1946 1946
1947 1947 1947 1947 1947 1947 1947
1948 1948 1948 1948 1948 1948 1948
1949 1949 1949 1949 1949 1949 1949
1950 1950 1950 1950 1950 1950 1950
1951 1951 1951 1951 1951 1951 1951
1952 1952 1952 1952 1952 1952 1952
1953 1953 1953 1953 1953 1953 1953
1954 1954 1954 1954 1954 1954 1954
1955 1955 1955 1955 1955 1955 1955
1956 1956 1956 1956 1956 1956 1956
1957 1957 1957 1957 1957 1957 1957
1958 1958 1958 1958 1958 1958 1958
1959 1959 1959 1959 1959 1959 1959
1960 1960 1960 1960 1960 1960 1960
1961 1961 1961 1961 1961 1961 1961
1962 1962 1962 1962 1962 1962 1962
1963 1963 1963 1963 1963 1963 1963
1964 1964 1964 1964 1964 1964 1964
1965 1965 1965 1965 1965 1965 1965
1966 1966 1966 1966 1966 1966 1966
1967 1967 1967 1967 1967 1967 1967
1968 1968 1968 1968 1968 1968 1968
1969 1969 1969 1969 1969 1969 1969
1970 1970 1970 1970 1970 1970 1970
1971 1971 1971 1971 1971 1971 1971
1972 1972 1972 1972 1972 1972 1972
1973 1973 1973 1973 1973 1973 1973
1974 1974 1974 1974 1974 1974 1974
1975 1975 1975 1975 1975 1975 1975
1976 1976 1976 1976 1976 1976 1976
1977 1977 1977 1977 1977 1977 1977
1978 1978 1978 1978 1978 1978 1978
1979 1979 1979 1979 1979 1979 1979
1980 1980 1980 1980 1980 1980 1980
1981 1981 1981 1981 1981 1981 1981
1982 1982 1982 1982 1982 1982 1982
1983 1983 1983 1983 1983 1983 1983
1984 1984 1984 1984 1984 1984 1984
1985 1985 1985 1985 1985 1985 1985
1986 1986 1986 1986 1986 1986 1986
1987 1987 1987 1987 1987 1987 1987
1988 1988 1988 1988 1988 1988 1988
1989 1989 1989 1989 1989 1989 1989
1990 1990 1990 1990 1990 1990 1990
1991 1991 1991 1991 1991 1991 1991
1992 1992 1992 1992 1992 1992 1992
1993 1993 1993 1993 1993 1993 1993
Cachuma
Gibraltar
Groundwater
Recycled Water
State Water
Desalination
Detailed Simple
Maximum Capacity () Maximum Capacity (AF) 1980s Current
Lake Cachuma 32 8277 Cachuma 9700 8577
Gibraltar Reservoir 19 5000 Gibraltar 7400 6000
Mission Tunnel 4 1000 Groundwater 4500 4150
State Water Project 12 3000 Recycled Water 800
Groundwater 16 4150 State Water 3000
Recycled Water 3 800 Desalination 3125
Montecito Transfer 1 300 Totals 21600 25652
Desalination 12 3125
100 25652
Lake Cachuma
Gibraltar Reservoir
Mission Tunnel
State Water Project
Groundwater
Recycled Water
Montecito Transfer
Desalination
In our review of the FMP EIREIS we had a small discussion on how to characterize our water supplies in particular State Water In that discussion I commented that the average State Water delivery did not apply to how we did our water supply planning a
The supply target in this analysis is 18200 AFY with a goal of having no shortage greater than 1820 (10) in any year The critical year is 1951 This supply target was developed for us by our Community Development Department for the LTWSP and include
The Cityrsquos supply strategy as modeled is to
use all surface water supply first with a minimum (300 AFY) amount of local groundwater
use available State Water to get us to the supply target
if enough State Water is not available meet the supply target with local groundwater up to 4500 AFY
if that is not enough turn on the desal plant with a goal of having no shortage greater than 1820 AFY in the critical year
The modeling results presented in the first spreadsheet page (LTWSP2002) and the chart shows that our supplies meet the overall production target and satisfy the goal of having a shortage less than 10 in the critical year
In this analysis State Water is an important element in meeting the annual target and the critical year shortage goal The average delivery of State Water is meaningless in this analysis Also with the Cityrsquos approach our average delivery of State Wat
Another important consideration is that the estimates of State Water deliveries based on history result in historical critical periods for the Santa Ynez River and the State Water Project not coinciding I think it is acceptable for one to do this analys
I am not sure where this leaves us with respect to what we put in the FMP EISEIR for our individual water supplies For the City of Santa Barbara input I can give John Gray the bottom line of the spreadsheet with our averages for the 76 year period T
One value of the Cityrsquos approach is that it gives some meaning to the shortages that would happen (or at least are modeled to happen) if the surcharge is not included or other changes to Cachuma Project yield are suggested Our goal again is a shortage
Page 9: PUBLIC WORKS DEPARTMENT WATER RESOURCES DIVISION …...mountain • Supply ranges from ... Water Supplies –State Water • A small, but useful part of our water supply • Both the

Chart1

Maximum Capacity (AF)
8277
5000
1000
3000
4150
800
300
3125

Pie Chart Data

Pie Chart Data

Cachuma8277 AF
Gibraltar6000 AF
Groundwater4150 AF
State Water3000 AF
Recycled800 AF
Desalination3125 AF
Current
Current Water Supply(AF of Capacity)
Gibraltar7400 AF
Cachuma9700 AF
Groundwater4500 AF
1980s
1980s Water Supply(AF of Capacity)

SantaBarbaraCAgovWater4

Historical Backgroundbull Gibraltar Pass Through Agreement

(1989)- Gibraltar Enlargement Deferred- City to ldquoPass Throughrdquo Gibraltar

Water to Cachuma

bull 1987 ndash 1991 Drought - 50 Cutbacks Sought - State Water Bond Approval- Advisory Vote for Desal

Gibraltar Reservoir1989

SantaBarbaraCAgovWater5

Historical BackgroundLong-Term Water Supply Program (1994)

- Added Recycled WaterDesal amp State Water

- Critical Period Planning- Demand Estimate per

General Plan Update (1989)- Water Conservation savings

of 1500 AFY planned

LTWSP Water Supply(AF of Capacity)

Cachuma8277 AF

Gibraltar6000 AF

Groundwater4150 AF

State Water3000 AF

Recycled800 AF

Desalination3125 AF

Chart2

Cachuma8277 AF
Gibraltar6000 AF
Groundwater4150 AF
State Water3000 AF
Recycled800 AF
Desalination3125 AF
Current
LTWSP Water Supply(AF of Capacity)
8577
6000
4150
800
3000
3125

ltwspCht

ampA
Page ampP
Recycled
Cachuma
Gib etc
SWP
GW
Desal
Shortage
Water Supply (AF)
Figure 1 Long-Term Water Supply ProgramUpdated to include surchararge fish releases and 1990 drought
900
82773366
6366
23566634
300
900
82773366
5865
2400
7576634
900
82773366
5560
2400
10626634
900
82773366
5483
2400
11396634
900
82773366
5931
27916634
300
900
82773366
5829
28936634
300
900
82773366
5494
1500
20286634
900
82773366
5294
1290
24386634
900
82773366
5406
1740
18766634
900
82773366
5643
2550
8296634
900
82773366
5548
2580
8946634
900
82773366
5425
1680
19176634
900
8231514135
5330
1710
2028485865
900
7305562347
4673246
1260
4061191653
900
7856777469
471278
1320
3410442531
900
82773366
5451
1140
24316634
900
82773366
5347
990
26856634
900
82773366
5528
1950
15446634
900
82773366
5544
2460
10186634
900
82773366
5797
2220
10056634
900
82773366
6110
26126634
300
900
82773366
5914
2640
4686634
900
82773366
5586
2460
9766634
900
82773366
6405
23176634
300
900
82773366
6250
24726634
300
900
82773366
6189
25336634
300
900
82773366
6084
26386634
300
900
82773366
5804
2700
5186634
900
82773366
5630
2640
7526634
900
82773366
5427
2250
13456634
900
82773366
5236
2010
17766634
900
7855786017
2020508
1950
4500
974
900
6759906438
3335608
2010
4500
694485562
900
547040079
500
2640
4500
3000
1189893227
900
7545802755
441926
2880
300
2155
900
82773366
5700
2700
300
323
900
82773366
5494
2490
300
739
900
82773366
5431
2070
300
1222
900
8233699836
5462
2700
904300164
900
7520604423
5411
2640
1728395577
900
787483284
5997
2700
72816716
900
82773366
5921
2640
4616634
900
82773366
5497
1890
16356634
900
82773366
4178353
1830
30143104
900
82773366
4147065
2340
25355984
900
82773366
5537
2820
6656634
900
82773366
5327
2640
10556634
900
8080887468
5309
2460
1450112532
900
8219636025
5639
2880
561363975
900
82773366
5896
28266634
300
900
82773366
5675
2670
6776634
900
82773366
6326
23966634
300
900
82773366
6036
2670
3166634
900
82773366
5733
2820
4696634
900
82773366
5443
2640
9396634
900
82773366
5747
2460
8156634
900
82773366
5785
2820
4176634
900
82773366
5742
2880
4006634
900
82773366
5515
2640
8676634
900
82773366
5279
990
27536634
900
82773366
6052
2040
9306634
900
82773366
6171
2550
3016634
900
82773366
6188
2460
3746634
900
82773366
6145
2490
3876634
900
82773366
5988
27346634
300
900
82773366
6955
17676634
300
900
82773366
6304
24186634
300
900
82773366
5851
28716634
300
900
82773366
5703
2430
8896634
900
82773366
5321
2070
16316634
900
82773366
5858
1290
18746634
900
7990356312
5641
1740
1928643688
900
6885154509
2170335
1380
4500
2364510491
900
682933383
271296
870
4500
238770617
900
7997267505
5860
930
300
2213
900
82773366
6866
18566634
300

LTWSP2002

LTWSP2002 (coincide)

Text of Accompanying Email

Chart1

Maximum Capacity (AF)
8277
5000
1000
3000
4150
800
300
3125

Pie Chart Data

Pie Chart Data

Cachuma8277 AF
Gibraltar6000 AF
Groundwater4150 AF
State Water3000 AF
Recycled800 AF
Desalination3125 AF
Current
Current Water Supply(AF of Capacity)
Gibraltar7400 AF
Cachuma9700 AF
Groundwater4500 AF
1980s
1980s Water Supply(AF of Capacity)

SantaBarbaraCAgovWater6

City of Santa Barbara Water Demand(Acre Feet of Production by Calendar Year - Potable + Recycled)

0

2500

5000

7500

10000

12500

15000

17500

20000

1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010

Figure ___

Total System Production (AF)

12 Months Ending

13374

February 28 2011

Post-DroughtPre-Drought Drought

SantaBarbaraCAgovWater7

Water Supplies - Cachumabull Primary City

Water Supply

bull Multi-Year SourceA few dry years notan issue

bull 8277 AFYCurrent Entitlement

bull 7863 AFYProjected Entitlement (2030)

SantaBarbaraCAgovWater8

Water Supplies - Cachuma

0

50000

100000

150000

200000

250000

1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011Water Year

Historical StorageVolumes1987-1993 Period

Recent History of Lake Cachuma Storage Levels (AF)With 1987-1993 Period Shown for Comparison

Figure ____

SantaBarbaraCAgovWater9

Water Supplies - Gibraltarbull ldquoPass Throughrdquo

implementationin progress

bull Modelingunder review

bull Conservative planning assumptions used pending modeling results

bull Sedimentation management study planned

SantaBarbaraCAgovWater10

Water Supplies ndash Mission Tunnelbull Infiltration from

percolating groundwateron both sides of themountain

bull Supply ranges from500 to 2375 AFY

bull Average contribution1125 AFY

SantaBarbaraCAgovWater11

Water Supplies ndash State Waterbull A small but useful part of our water

supply

bull Both the water amp the pipeline have value

bull Cityrsquos maximum delivery amount - 3300 AFY

bull Deliveries subject to availability

SantaBarbaraCAgovWater12

Water Supplies ndash State Waterbull Projections based on DWR

modeling using long-term databull No Delta or storage

improvementsbull Environmental limits remain in

effectbull Climate change effects assumed

SantaBarbaraCAgovWater13

Water Supplies - Groundwater

SantaBarbaraCAgovWater14

Water Supplies ndash Groundwaterbull Pumping occurs in

Downtown amp OuterState Street areas

bull 1300 AFY safe yieldbull Average City pumping

assumed at ~1100 AFYbull Maximum of 4150 AFY during drought

Ortega Groundwater Treatment Plant

SantaBarbaraCAgovWater15

Water Supplies ndash Recycled WaterRecycled Water Distribution System

SantaBarbaraCAgovWater16

Water Supplies ndash Recycled Waterbull Displaces use of potable

water amp extends water supplybull Current connected

demand 800 AFYbull 300 AFY potential demand amp capacity identifiedbull Target demand 1100 AFYbull Blending an economical solution for reducing mineral

contentbull Policy issues related to blending

SantaBarbaraCAgovWater17

Water Supplies ndash Recycled Water

SantaBarbaraCAgovWater18

Recycled Water Blending bull Filterability (turbidity) - solution identifiedbull Mineral Content (salts) separate issue -

- Blending $180AF added operating cost- MFRO $341AF added cost + $46 million

capitalbull Proposed Policy ldquoContingency Plan to

eliminate blending with goal to be ready to implement plan based on economic regulatory or water supply requirementsrdquo

SantaBarbaraCAgovWater19

Water Supplies - Desalination

bull Reliable butexpensive source

bull $177 million toreactivate if needed

bull Important to keepfor use in case ofextended drought

bull Proposed Planning Goal Avoid use until year six of Critical Drought Period

SantaBarbaraCAgovWater20

Demand Managementbull Declining demand

- Best Management Practices (CUWCC)- Conservation Program- 20 x 2020- Plumbing Code amp Appliance Standards

bull Projected development - 800 to 900 AFY bull Water Conservation Technical Evaluation

SantaBarbaraCAgovWater21

Demand Projections

12000

12500

13000

13500

14000

14500

15000

2010 2012 2014 2016 2018 2020 2022 2024 2026 2028 2030

Plan SB Demand (No Plumbing Code or Conservation Effects)Plumbing Code Effects OnlyPlumbing Code + Program B20 X 2020 Trend Line20 X 2020 Regulatory Limit

Water System Demand Projections (AFY)

SantaBarbaraCAgovWater22

Water Supply Planning Target

Projected Demand 14000Safety Margin (10) + 1400

Water Supply Target = 15400 AFY

SantaBarbaraCAgovWater23

Water Supply Planning Conceptsbull Planning for 6-Year Critical Drought Periodbull Water Supply Modeling - Using Historical

Data with Current Water Supply Sources and Projected Demands

bull Ongoing Conservation vs Short Term Planned Demand Reductions for Extraordinary Situations

SantaBarbaraCAgovWater24

Water Supply Performance

SantaBarbaraCAgovWater25

SantaBarbaraCAgovWater26

SantaBarbaraCAgovWater27

SantaBarbaraCAgovWater28

Key Policy Issuesbull Achieve 20 x 2020 through BMPs Additional

Conservation Measures amp Recycled Waterbull Planning for a 6-Year Duration Critical Drought

- Manage supplies to avoid use of Desal until year six- Water Banking Purchases- Planned Demand Reductions 10 to 15- Recycled Water Expansion

bull Recycled Water Blending bull Sedimentation Management

SantaBarbaraCAgovWater29

Next Stepsbull Finalize updated Long-Term Water

Supply Plan- April 11 Final Comments from Water

Commission- Environmental Review

bull Prepare Urban Water Management Plan Update per State Requirements

bull Target Adoption Date for LTWSP amp UWMP - June 14 2011

SantaBarbaraCAgovWater30

Discussion amp Feedback

SantaBarbaraCAgovWater31

SantaBarbaraCAgovWater32

SantaBarbaraCAgovWater33

SantaBarbaraCAgovWater34

SantaBarbaraCAgovWater35

SantaBarbaraCAgovWater36

Upper Santa Ynez River Operations Agreement(ldquoPass Through Agreementrdquo)

SantaBarbaraCAgovWater37

Context of 1989 Agreementbull City water supply shortage identified ndash Gibraltar

vulnerable to siltation

bull Solution Raise Gibraltar Dam 20rsquo to 40rsquo

bull Challenges by downstream and environmental interests

bull Cachuma enlargement under consideration

SantaBarbaraCAgovWater38

Parties to the Agreement

bull City of Santa Barbarabull Carpinteria Valley Water Districtbull Goleta Water Districtbull Montecito Water Districtbull Santa Ynez River Water Conservation Districtbull SYRWCD Improvement District No 1

Consent and Acknowledgement by US Bureau of Reclamation

SantaBarbaraCAgovWater39

Pass Through Summer no inflow

Current volume (reflects on-going siltation since 1988)

1988 Reservoir volume

Note different siltation levels

SantaBarbaraCAgovWater40

Smaller Reservoir Spills Sooner1988 Reservoir volume

Current Reservoir volume

SantaBarbaraCAgovWater41

Difference is Stored in Cachuma as Gibraltar WaterBase Reservoir

Actual Reservoir

SantaBarbaraCAgovWater42

  • Long Term Water Supply Plan Adaptive Management
  • Overview
  • Historical Background
  • Historical Background
  • Historical Background
  • Slide Number 6
  • Water Supplies - Cachuma
  • Water Supplies - Cachuma
  • Water Supplies - Gibraltar
  • Water Supplies ndash Mission Tunnel
  • Water Supplies ndash State Water
  • Water Supplies ndash State Water
  • Water Supplies - Groundwater
  • Water Supplies ndash Groundwater
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Recycled Water Blending
  • Water Supplies - Desalination
  • Demand Management
  • Demand Projections
  • Water Supply Planning Target
  • Water Supply Planning Concepts
  • Water Supply Performance
  • Slide Number 25
  • Slide Number 26
  • Slide Number 27
  • Key Policy Issues
  • Next Steps
  • Discussion amp Feedback
  • Slide Number 31
  • Slide Number 32
  • Slide Number 33
  • Slide Number 34
  • Slide Number 35
  • Slide Number 36
  • Context of 1989 Agreement
  • Parties to the Agreement
  • Pass Through Summer no inflow
  • Smaller Reservoir Spills Sooner
  • Difference is Stored in Cachuma as Gibraltar Water
  • Slide Number 42
Detailed Simple
Maximum Capacity () Maximum Capacity (AF) 1980s Current
Lake Cachuma 32 8277 Cachuma 9700 8577
Gibraltar Reservoir 19 5000 Gibraltar 7400 6000
Mission Tunnel 4 1000 Groundwater 4500 4150
State Water Project 12 3000 Recycled Water 800
Groundwater 16 4150 State Water 3000
Recycled Water 3 800 Desalination 3125
Montecito Transfer 1 300 Totals 21600 25652
Desalination 12 3125
100 25652
Lake Cachuma
Gibraltar Reservoir
Mission Tunnel
State Water Project
Groundwater
Recycled Water
Montecito Transfer
Desalination
In our review of the FMP EIREIS we had a small discussion on how to characterize our water supplies in particular State Water In that discussion I commented that the average State Water delivery did not apply to how we did our water supply planning a
The supply target in this analysis is 18200 AFY with a goal of having no shortage greater than 1820 (10) in any year The critical year is 1951 This supply target was developed for us by our Community Development Department for the LTWSP and include
The Cityrsquos supply strategy as modeled is to
use all surface water supply first with a minimum (300 AFY) amount of local groundwater
use available State Water to get us to the supply target
if enough State Water is not available meet the supply target with local groundwater up to 4500 AFY
if that is not enough turn on the desal plant with a goal of having no shortage greater than 1820 AFY in the critical year
The modeling results presented in the first spreadsheet page (LTWSP2002) and the chart shows that our supplies meet the overall production target and satisfy the goal of having a shortage less than 10 in the critical year
In this analysis State Water is an important element in meeting the annual target and the critical year shortage goal The average delivery of State Water is meaningless in this analysis Also with the Cityrsquos approach our average delivery of State Wat
Another important consideration is that the estimates of State Water deliveries based on history result in historical critical periods for the Santa Ynez River and the State Water Project not coinciding I think it is acceptable for one to do this analys
I am not sure where this leaves us with respect to what we put in the FMP EISEIR for our individual water supplies For the City of Santa Barbara input I can give John Gray the bottom line of the spreadsheet with our averages for the 76 year period T
One value of the Cityrsquos approach is that it gives some meaning to the shortages that would happen (or at least are modeled to happen) if the surcharge is not included or other changes to Cachuma Project yield are suggested Our goal again is a shortage
LONG TERM WATER SUPPLY PROGRAM SUPPLY SCENARIO
As estimated by the Santa Ynez River Hydrology Model using 3 ft surcharge and BO fish releases
State Water critical period is moved to coincide with Cachuma critical period
Water Conservation and GW recharge is left out of this version
Includes ground water recovery and 10 safety margin values in acre feet production is 18200 AFY
Filename=LTWSP2002xls SWP
Year Cachuma Desal SWP GibJun GW Recycled Total Shortage
1918 8277 2357 6366 300 900 18200 14300 80
1919 8277 2400 5865 758 900 18200 14300 80
1920 8277 2400 5560 1063 900 18200 14300 80
1921 8277 2400 5483 1140 900 18200 14300 80
1922 8277 2792 5931 300 900 18200 14300 94 094
1923 8277 2894 5829 300 900 18200 14300 99 099
1924 8277 1500 5494 2029 900 18200 14300 50 05
1925 8277 1290 5294 2439 900 18200 14300 43 043
1926 8277 1740 5406 1877 900 18200 14300 58 058
1927 8277 2550 5643 830 900 18200 14300 85 085
1928 8277 2580 5548 895 900 18200 14300 86 086
1929 8277 1680 5425 1918 900 18200 14300 56 056
1930 8232 2250 5330 1488 900 18200 14300 75 057
1931 7306 2010 4673 3311 900 18200 14300 67 042
1932 7857 1950 4713 2780 900 18200 14300 65 044
1933 8277 2010 5451 1562 900 18200 14300 67 038
1934 8277 2640 5347 1036 900 18200 14300 88 033
1935 8277 1950 5528 1545 900 18200 14300 65 065
1936 8277 2460 5544 1019 900 18200 14300 82 082
1937 8277 2220 5797 1006 900 18200 14300 74 074
1938 8277 2613 6110 300 900 18200 14300 94 094
1939 8277 2640 5914 469 900 18200 14300 88 088
1940 8277 2460 5586 977 900 18200 14300 82 082
1941 8277 2318 6405 300 900 18200 14300 97 097
1942 8277 2473 6250 300 900 18200 14300 100 1
1943 8277 2534 6189 300 900 18200 14300 89 089
1944 8277 2639 6084 300 900 18200 14300 92 092
1945 8277 2700 5804 519 900 18200 14300 90 09
1946 8277 2640 5630 753 900 18200 14300 88 088
1947 8277 1710 5427 1886 900 18200 14300 57 075
1948 8277 1260 5236 2527 900 18200 14300 42 067
1949 7856 1604 1320 2021 4500 900 18200 -0 14300 44 065
1950 6760 1564 1140 3336 4500 900 18200 0 14300 38 067
1951 5470 3000 990 500 4500 900 15360 2840 01560380894 14300 33 088
1952 7546 2155 2880 4419 300 900 18200 14300 96 096
1953 8277 323 2700 5700 300 900 18200 14300 90 09
1954 8277 739 2490 5494 300 900 18200 14300 83 083
1955 8277 1222 2070 5431 300 900 18200 14300 69 069
1956 8234 2700 5462 904 900 18200 14300 90 09
1957 7521 2640 5411 1728 900 18200 14300 88 088
1958 7875 2700 5997 728 900 18200 14300 90 09
1959 8277 2640 5921 462 900 18200 14300 88 088
1960 8277 1890 5497 1636 900 18200 14300 63 063
1961 8277 1830 4178 3014 900 18200 14300 61 061
1962 8277 2340 4147 2536 900 18200 14300 78 078
1963 8277 2820 5537 666 900 18200 14300 94 094
1964 8277 2640 5327 1056 900 18200 14300 88 088
1965 8081 2460 5309 1450 900 18200 14300 82 082
1966 8220 2880 5639 561 900 18200 14300 96 096
1967 8277 2827 5896 300 900 18200 14300 96 096
1968 8277 2670 5675 678 900 18200 14300 89 089
1969 8277 2397 6326 300 900 18200 14300 93 093
1970 8277 2670 6036 317 900 18200 14300 89 089
1971 8277 2820 5733 470 900 18200 14300 94 094
1972 8277 2640 5443 940 900 18200 14300 88 088
1973 8277 2460 5747 816 900 18200 14300 82 082
1974 8277 2820 5785 418 900 18200 14300 94 094
1975 8277 2880 5742 401 900 18200 14300 96 096
1976 8277 2640 5515 868 900 18200 14300 88 088
1977 8277 990 5279 2754 900 18200 14300 33 033
1978 8277 2040 6052 931 900 18200 14300 68 068
1979 8277 2550 6171 302 900 18200 14300 85 085
1980 8277 2460 6188 375 900 18200 14300 82 082
1981 8277 2490 6145 388 900 18200 14300 83 083
1982 8277 2735 5988 300 900 18200 14300 94 094
1983 8277 1768 6955 300 900 18200 14300 100 1
1984 8277 2419 6304 300 900 18200 14300 100 1
1985 8277 2872 5851 300 900 18200 14300 96 096
1986 8277 2430 5703 890 900 18200 14300 81 081
1987 8277 2070 5321 1632 900 18200 14300 69 069
1988 8277 1290 5858 1875 900 18200 14300 43 043
1989 7990 1740 5641 1929 900 18200 14300 58 058
1990 6885 2365 1380 2170 4500 900 18200 14300 46 046
1991 6829 2388 870 2713 4500 900 18200 14300 29 029
1992 7997 2213 930 5860 300 900 18200 14300 31 031
1993 8277 1857 6866 300 900 18200 14300 76 076
Average 8122 231 2249 5436 1224 900 18163 769342 088
2241
7470
163592
LONG TERM WATER SUPPLY PROGRAM SUPPLY SCENARIO
As estimated by the Santa Ynez River Hydrology Model using 3 ft surcharge and BO fish releases
State Water deliveries are based on delivery estimates provided by CCWA in 2001
Water Conservation and GW recharge is left out of this version
Includes ground water recovery and 10 safety margin values in acre feet production is 18200 AFY
Filename=LTWSP2002xls SWP
Year Cachuma Desal SWP GibJun GW Recycled Total Shortage
1918 8277 2357 6366 300 900 18200 14300 80
1919 8277 2400 5865 758 900 18200 14300 80
1920 8277 2400 5560 1063 900 18200 14300 80
1921 8277 2400 5483 1140 900 18200 14300 80
1922 8277 2792 5931 300 900 18200 14300 94 094
1923 8277 2894 5829 300 900 18200 14300 99 099
1924 8277 1500 5494 2029 900 18200 14300 50 05
1925 8277 1290 5294 2439 900 18200 14300 43 043
1926 8277 1740 5406 1877 900 18200 14300 58 058
1927 8277 2550 5643 830 900 18200 14300 85 085
1928 8277 2580 5548 895 900 18200 14300 86 086
1929 8277 1680 5425 1918 900 18200 14300 56 056
1930 8232 1710 5330 2028 900 18200 14300 57 057
1931 7306 1260 4673 4061 900 18200 14300 42 042
1932 7857 1320 4713 3410 900 18200 14300 44 044
1933 8277 1140 5451 2432 900 18200 14300 38 038
1934 8277 990 5347 2686 900 18200 14300 33 033
1935 8277 1950 5528 1545 900 18200 14300 65 065
1936 8277 2460 5544 1019 900 18200 14300 82 082
1937 8277 2220 5797 1006 900 18200 14300 74 074
1938 8277 2613 6110 300 900 18200 14300 94 094
1939 8277 2640 5914 469 900 18200 14300 88 088
1940 8277 2460 5586 977 900 18200 14300 82 082
1941 8277 2318 6405 300 900 18200 14300 97 097
1942 8277 2473 6250 300 900 18200 14300 100 1
1943 8277 2534 6189 300 900 18200 14300 89 089
1944 8277 2639 6084 300 900 18200 14300 92 092
1945 8277 2700 5804 519 900 18200 14300 90 09
1946 8277 2640 5630 753 900 18200 14300 88 088
1947 8277 2250 5427 1346 900 18200 14300 75 075
1948 8277 2010 5236 1777 900 18200 14300 67 067
1949 7856 974 1950 2021 4500 900 18200 14300 65 065
1950 6760 694 2010 3336 4500 900 18200 14300 67 067
1951 5470 3000 2640 500 4500 900 17010 1190 00653787487 14300 88 088
1952 7546 2155 2880 4419 300 900 18200 14300 96 096
1953 8277 323 2700 5700 300 900 18200 14300 90 09
1954 8277 739 2490 5494 300 900 18200 14300 83 083
1955 8277 1222 2070 5431 300 900 18200 14300 69 069
1956 8234 2700 5462 904 900 18200 14300 90 09
1957 7521 2640 5411 1728 900 18200 14300 88 088
1958 7875 2700 5997 728 900 18200 14300 90 09
1959 8277 2640 5921 462 900 18200 14300 88 088
1960 8277 1890 5497 1636 900 18200 14300 63 063
1961 8277 1830 4178 3014 900 18200 14300 61 061
1962 8277 2340 4147 2536 900 18200 14300 78 078
1963 8277 2820 5537 666 900 18200 14300 94 094
1964 8277 2640 5327 1056 900 18200 14300 88 088
1965 8081 2460 5309 1450 900 18200 14300 82 082
1966 8220 2880 5639 561 900 18200 14300 96 096
1967 8277 2827 5896 300 900 18200 14300 96 096
1968 8277 2670 5675 678 900 18200 14300 89 089
1969 8277 2397 6326 300 900 18200 14300 93 093
1970 8277 2670 6036 317 900 18200 14300 89 089
1971 8277 2820 5733 470 900 18200 14300 94 094
1972 8277 2640 5443 940 900 18200 14300 88 088
1973 8277 2460 5747 816 900 18200 14300 82 082
1974 8277 2820 5785 418 900 18200 14300 94 094
1975 8277 2880 5742 401 900 18200 14300 96 096
1976 8277 2640 5515 868 900 18200 14300 88 088
1977 8277 990 5279 2754 900 18200 14300 33 033
1978 8277 2040 6052 931 900 18200 14300 68 068
1979 8277 2550 6171 302 900 18200 14300 85 085
1980 8277 2460 6188 375 900 18200 14300 82 082
1981 8277 2490 6145 388 900 18200 14300 83 083
1982 8277 2735 5988 300 900 18200 14300 94 094
1983 8277 1768 6955 300 900 18200 14300 100 1
1984 8277 2419 6304 300 900 18200 14300 100 1
1985 8277 2872 5851 300 900 18200 14300 96 096
1986 8277 2430 5703 890 900 18200 14300 81 081
1987 8277 2070 5321 1632 900 18200 14300 69 069
1988 8277 1290 5858 1875 900 18200 14300 43 043
1989 7990 1740 5641 1929 900 18200 14300 58 058
1990 6885 2365 1380 2170 4500 900 18200 14300 46 046
1991 6829 2388 870 2713 4500 900 18200 14300 29 029
1992 7997 2213 930 5860 300 900 18200 14300 31 031
1993 8277 1857 6866 300 900 18200 14300 76 076
Average 8122 211 2249 5436 1266 900 18184 769342 088
2241
7470
163592
1918 1918 1918 1918 1918 1918 1918
1919 1919 1919 1919 1919 1919 1919
1920 1920 1920 1920 1920 1920 1920
1921 1921 1921 1921 1921 1921 1921
1922 1922 1922 1922 1922 1922 1922
1923 1923 1923 1923 1923 1923 1923
1924 1924 1924 1924 1924 1924 1924
1925 1925 1925 1925 1925 1925 1925
1926 1926 1926 1926 1926 1926 1926
1927 1927 1927 1927 1927 1927 1927
1928 1928 1928 1928 1928 1928 1928
1929 1929 1929 1929 1929 1929 1929
1930 1930 1930 1930 1930 1930 1930
1931 1931 1931 1931 1931 1931 1931
1932 1932 1932 1932 1932 1932 1932
1933 1933 1933 1933 1933 1933 1933
1934 1934 1934 1934 1934 1934 1934
1935 1935 1935 1935 1935 1935 1935
1936 1936 1936 1936 1936 1936 1936
1937 1937 1937 1937 1937 1937 1937
1938 1938 1938 1938 1938 1938 1938
1939 1939 1939 1939 1939 1939 1939
1940 1940 1940 1940 1940 1940 1940
1941 1941 1941 1941 1941 1941 1941
1942 1942 1942 1942 1942 1942 1942
1943 1943 1943 1943 1943 1943 1943
1944 1944 1944 1944 1944 1944 1944
1945 1945 1945 1945 1945 1945 1945
1946 1946 1946 1946 1946 1946 1946
1947 1947 1947 1947 1947 1947 1947
1948 1948 1948 1948 1948 1948 1948
1949 1949 1949 1949 1949 1949 1949
1950 1950 1950 1950 1950 1950 1950
1951 1951 1951 1951 1951 1951 1951
1952 1952 1952 1952 1952 1952 1952
1953 1953 1953 1953 1953 1953 1953
1954 1954 1954 1954 1954 1954 1954
1955 1955 1955 1955 1955 1955 1955
1956 1956 1956 1956 1956 1956 1956
1957 1957 1957 1957 1957 1957 1957
1958 1958 1958 1958 1958 1958 1958
1959 1959 1959 1959 1959 1959 1959
1960 1960 1960 1960 1960 1960 1960
1961 1961 1961 1961 1961 1961 1961
1962 1962 1962 1962 1962 1962 1962
1963 1963 1963 1963 1963 1963 1963
1964 1964 1964 1964 1964 1964 1964
1965 1965 1965 1965 1965 1965 1965
1966 1966 1966 1966 1966 1966 1966
1967 1967 1967 1967 1967 1967 1967
1968 1968 1968 1968 1968 1968 1968
1969 1969 1969 1969 1969 1969 1969
1970 1970 1970 1970 1970 1970 1970
1971 1971 1971 1971 1971 1971 1971
1972 1972 1972 1972 1972 1972 1972
1973 1973 1973 1973 1973 1973 1973
1974 1974 1974 1974 1974 1974 1974
1975 1975 1975 1975 1975 1975 1975
1976 1976 1976 1976 1976 1976 1976
1977 1977 1977 1977 1977 1977 1977
1978 1978 1978 1978 1978 1978 1978
1979 1979 1979 1979 1979 1979 1979
1980 1980 1980 1980 1980 1980 1980
1981 1981 1981 1981 1981 1981 1981
1982 1982 1982 1982 1982 1982 1982
1983 1983 1983 1983 1983 1983 1983
1984 1984 1984 1984 1984 1984 1984
1985 1985 1985 1985 1985 1985 1985
1986 1986 1986 1986 1986 1986 1986
1987 1987 1987 1987 1987 1987 1987
1988 1988 1988 1988 1988 1988 1988
1989 1989 1989 1989 1989 1989 1989
1990 1990 1990 1990 1990 1990 1990
1991 1991 1991 1991 1991 1991 1991
1992 1992 1992 1992 1992 1992 1992
1993 1993 1993 1993 1993 1993 1993
Cachuma
Gibraltar
Groundwater
Recycled Water
State Water
Desalination
Detailed Simple
Maximum Capacity () Maximum Capacity (AF) 1980s Current
Lake Cachuma 32 8277 Cachuma 9700 8577
Gibraltar Reservoir 19 5000 Gibraltar 7400 6000
Mission Tunnel 4 1000 Groundwater 4500 4150
State Water Project 12 3000 Recycled Water 800
Groundwater 16 4150 State Water 3000
Recycled Water 3 800 Desalination 3125
Montecito Transfer 1 300 Totals 21600 25652
Desalination 12 3125
100 25652
Lake Cachuma
Gibraltar Reservoir
Mission Tunnel
State Water Project
Groundwater
Recycled Water
Montecito Transfer
Desalination
Page 10: PUBLIC WORKS DEPARTMENT WATER RESOURCES DIVISION …...mountain • Supply ranges from ... Water Supplies –State Water • A small, but useful part of our water supply • Both the

Pie Chart Data

Pie Chart Data

Cachuma8277 AF
Gibraltar6000 AF
Groundwater4150 AF
State Water3000 AF
Recycled800 AF
Desalination3125 AF
Current
Current Water Supply(AF of Capacity)
Gibraltar7400 AF
Cachuma9700 AF
Groundwater4500 AF
1980s
1980s Water Supply(AF of Capacity)

SantaBarbaraCAgovWater4

Historical Backgroundbull Gibraltar Pass Through Agreement

(1989)- Gibraltar Enlargement Deferred- City to ldquoPass Throughrdquo Gibraltar

Water to Cachuma

bull 1987 ndash 1991 Drought - 50 Cutbacks Sought - State Water Bond Approval- Advisory Vote for Desal

Gibraltar Reservoir1989

SantaBarbaraCAgovWater5

Historical BackgroundLong-Term Water Supply Program (1994)

- Added Recycled WaterDesal amp State Water

- Critical Period Planning- Demand Estimate per

General Plan Update (1989)- Water Conservation savings

of 1500 AFY planned

LTWSP Water Supply(AF of Capacity)

Cachuma8277 AF

Gibraltar6000 AF

Groundwater4150 AF

State Water3000 AF

Recycled800 AF

Desalination3125 AF

Chart2

Cachuma8277 AF
Gibraltar6000 AF
Groundwater4150 AF
State Water3000 AF
Recycled800 AF
Desalination3125 AF
Current
LTWSP Water Supply(AF of Capacity)
8577
6000
4150
800
3000
3125

ltwspCht

ampA
Page ampP
Recycled
Cachuma
Gib etc
SWP
GW
Desal
Shortage
Water Supply (AF)
Figure 1 Long-Term Water Supply ProgramUpdated to include surchararge fish releases and 1990 drought
900
82773366
6366
23566634
300
900
82773366
5865
2400
7576634
900
82773366
5560
2400
10626634
900
82773366
5483
2400
11396634
900
82773366
5931
27916634
300
900
82773366
5829
28936634
300
900
82773366
5494
1500
20286634
900
82773366
5294
1290
24386634
900
82773366
5406
1740
18766634
900
82773366
5643
2550
8296634
900
82773366
5548
2580
8946634
900
82773366
5425
1680
19176634
900
8231514135
5330
1710
2028485865
900
7305562347
4673246
1260
4061191653
900
7856777469
471278
1320
3410442531
900
82773366
5451
1140
24316634
900
82773366
5347
990
26856634
900
82773366
5528
1950
15446634
900
82773366
5544
2460
10186634
900
82773366
5797
2220
10056634
900
82773366
6110
26126634
300
900
82773366
5914
2640
4686634
900
82773366
5586
2460
9766634
900
82773366
6405
23176634
300
900
82773366
6250
24726634
300
900
82773366
6189
25336634
300
900
82773366
6084
26386634
300
900
82773366
5804
2700
5186634
900
82773366
5630
2640
7526634
900
82773366
5427
2250
13456634
900
82773366
5236
2010
17766634
900
7855786017
2020508
1950
4500
974
900
6759906438
3335608
2010
4500
694485562
900
547040079
500
2640
4500
3000
1189893227
900
7545802755
441926
2880
300
2155
900
82773366
5700
2700
300
323
900
82773366
5494
2490
300
739
900
82773366
5431
2070
300
1222
900
8233699836
5462
2700
904300164
900
7520604423
5411
2640
1728395577
900
787483284
5997
2700
72816716
900
82773366
5921
2640
4616634
900
82773366
5497
1890
16356634
900
82773366
4178353
1830
30143104
900
82773366
4147065
2340
25355984
900
82773366
5537
2820
6656634
900
82773366
5327
2640
10556634
900
8080887468
5309
2460
1450112532
900
8219636025
5639
2880
561363975
900
82773366
5896
28266634
300
900
82773366
5675
2670
6776634
900
82773366
6326
23966634
300
900
82773366
6036
2670
3166634
900
82773366
5733
2820
4696634
900
82773366
5443
2640
9396634
900
82773366
5747
2460
8156634
900
82773366
5785
2820
4176634
900
82773366
5742
2880
4006634
900
82773366
5515
2640
8676634
900
82773366
5279
990
27536634
900
82773366
6052
2040
9306634
900
82773366
6171
2550
3016634
900
82773366
6188
2460
3746634
900
82773366
6145
2490
3876634
900
82773366
5988
27346634
300
900
82773366
6955
17676634
300
900
82773366
6304
24186634
300
900
82773366
5851
28716634
300
900
82773366
5703
2430
8896634
900
82773366
5321
2070
16316634
900
82773366
5858
1290
18746634
900
7990356312
5641
1740
1928643688
900
6885154509
2170335
1380
4500
2364510491
900
682933383
271296
870
4500
238770617
900
7997267505
5860
930
300
2213
900
82773366
6866
18566634
300

LTWSP2002

LTWSP2002 (coincide)

Text of Accompanying Email

Chart1

Maximum Capacity (AF)
8277
5000
1000
3000
4150
800
300
3125

Pie Chart Data

Pie Chart Data

Cachuma8277 AF
Gibraltar6000 AF
Groundwater4150 AF
State Water3000 AF
Recycled800 AF
Desalination3125 AF
Current
Current Water Supply(AF of Capacity)
Gibraltar7400 AF
Cachuma9700 AF
Groundwater4500 AF
1980s
1980s Water Supply(AF of Capacity)

SantaBarbaraCAgovWater6

City of Santa Barbara Water Demand(Acre Feet of Production by Calendar Year - Potable + Recycled)

0

2500

5000

7500

10000

12500

15000

17500

20000

1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010

Figure ___

Total System Production (AF)

12 Months Ending

13374

February 28 2011

Post-DroughtPre-Drought Drought

SantaBarbaraCAgovWater7

Water Supplies - Cachumabull Primary City

Water Supply

bull Multi-Year SourceA few dry years notan issue

bull 8277 AFYCurrent Entitlement

bull 7863 AFYProjected Entitlement (2030)

SantaBarbaraCAgovWater8

Water Supplies - Cachuma

0

50000

100000

150000

200000

250000

1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011Water Year

Historical StorageVolumes1987-1993 Period

Recent History of Lake Cachuma Storage Levels (AF)With 1987-1993 Period Shown for Comparison

Figure ____

SantaBarbaraCAgovWater9

Water Supplies - Gibraltarbull ldquoPass Throughrdquo

implementationin progress

bull Modelingunder review

bull Conservative planning assumptions used pending modeling results

bull Sedimentation management study planned

SantaBarbaraCAgovWater10

Water Supplies ndash Mission Tunnelbull Infiltration from

percolating groundwateron both sides of themountain

bull Supply ranges from500 to 2375 AFY

bull Average contribution1125 AFY

SantaBarbaraCAgovWater11

Water Supplies ndash State Waterbull A small but useful part of our water

supply

bull Both the water amp the pipeline have value

bull Cityrsquos maximum delivery amount - 3300 AFY

bull Deliveries subject to availability

SantaBarbaraCAgovWater12

Water Supplies ndash State Waterbull Projections based on DWR

modeling using long-term databull No Delta or storage

improvementsbull Environmental limits remain in

effectbull Climate change effects assumed

SantaBarbaraCAgovWater13

Water Supplies - Groundwater

SantaBarbaraCAgovWater14

Water Supplies ndash Groundwaterbull Pumping occurs in

Downtown amp OuterState Street areas

bull 1300 AFY safe yieldbull Average City pumping

assumed at ~1100 AFYbull Maximum of 4150 AFY during drought

Ortega Groundwater Treatment Plant

SantaBarbaraCAgovWater15

Water Supplies ndash Recycled WaterRecycled Water Distribution System

SantaBarbaraCAgovWater16

Water Supplies ndash Recycled Waterbull Displaces use of potable

water amp extends water supplybull Current connected

demand 800 AFYbull 300 AFY potential demand amp capacity identifiedbull Target demand 1100 AFYbull Blending an economical solution for reducing mineral

contentbull Policy issues related to blending

SantaBarbaraCAgovWater17

Water Supplies ndash Recycled Water

SantaBarbaraCAgovWater18

Recycled Water Blending bull Filterability (turbidity) - solution identifiedbull Mineral Content (salts) separate issue -

- Blending $180AF added operating cost- MFRO $341AF added cost + $46 million

capitalbull Proposed Policy ldquoContingency Plan to

eliminate blending with goal to be ready to implement plan based on economic regulatory or water supply requirementsrdquo

SantaBarbaraCAgovWater19

Water Supplies - Desalination

bull Reliable butexpensive source

bull $177 million toreactivate if needed

bull Important to keepfor use in case ofextended drought

bull Proposed Planning Goal Avoid use until year six of Critical Drought Period

SantaBarbaraCAgovWater20

Demand Managementbull Declining demand

- Best Management Practices (CUWCC)- Conservation Program- 20 x 2020- Plumbing Code amp Appliance Standards

bull Projected development - 800 to 900 AFY bull Water Conservation Technical Evaluation

SantaBarbaraCAgovWater21

Demand Projections

12000

12500

13000

13500

14000

14500

15000

2010 2012 2014 2016 2018 2020 2022 2024 2026 2028 2030

Plan SB Demand (No Plumbing Code or Conservation Effects)Plumbing Code Effects OnlyPlumbing Code + Program B20 X 2020 Trend Line20 X 2020 Regulatory Limit

Water System Demand Projections (AFY)

SantaBarbaraCAgovWater22

Water Supply Planning Target

Projected Demand 14000Safety Margin (10) + 1400

Water Supply Target = 15400 AFY

SantaBarbaraCAgovWater23

Water Supply Planning Conceptsbull Planning for 6-Year Critical Drought Periodbull Water Supply Modeling - Using Historical

Data with Current Water Supply Sources and Projected Demands

bull Ongoing Conservation vs Short Term Planned Demand Reductions for Extraordinary Situations

SantaBarbaraCAgovWater24

Water Supply Performance

SantaBarbaraCAgovWater25

SantaBarbaraCAgovWater26

SantaBarbaraCAgovWater27

SantaBarbaraCAgovWater28

Key Policy Issuesbull Achieve 20 x 2020 through BMPs Additional

Conservation Measures amp Recycled Waterbull Planning for a 6-Year Duration Critical Drought

- Manage supplies to avoid use of Desal until year six- Water Banking Purchases- Planned Demand Reductions 10 to 15- Recycled Water Expansion

bull Recycled Water Blending bull Sedimentation Management

SantaBarbaraCAgovWater29

Next Stepsbull Finalize updated Long-Term Water

Supply Plan- April 11 Final Comments from Water

Commission- Environmental Review

bull Prepare Urban Water Management Plan Update per State Requirements

bull Target Adoption Date for LTWSP amp UWMP - June 14 2011

SantaBarbaraCAgovWater30

Discussion amp Feedback

SantaBarbaraCAgovWater31

SantaBarbaraCAgovWater32

SantaBarbaraCAgovWater33

SantaBarbaraCAgovWater34

SantaBarbaraCAgovWater35

SantaBarbaraCAgovWater36

Upper Santa Ynez River Operations Agreement(ldquoPass Through Agreementrdquo)

SantaBarbaraCAgovWater37

Context of 1989 Agreementbull City water supply shortage identified ndash Gibraltar

vulnerable to siltation

bull Solution Raise Gibraltar Dam 20rsquo to 40rsquo

bull Challenges by downstream and environmental interests

bull Cachuma enlargement under consideration

SantaBarbaraCAgovWater38

Parties to the Agreement

bull City of Santa Barbarabull Carpinteria Valley Water Districtbull Goleta Water Districtbull Montecito Water Districtbull Santa Ynez River Water Conservation Districtbull SYRWCD Improvement District No 1

Consent and Acknowledgement by US Bureau of Reclamation

SantaBarbaraCAgovWater39

Pass Through Summer no inflow

Current volume (reflects on-going siltation since 1988)

1988 Reservoir volume

Note different siltation levels

SantaBarbaraCAgovWater40

Smaller Reservoir Spills Sooner1988 Reservoir volume

Current Reservoir volume

SantaBarbaraCAgovWater41

Difference is Stored in Cachuma as Gibraltar WaterBase Reservoir

Actual Reservoir

SantaBarbaraCAgovWater42

  • Long Term Water Supply Plan Adaptive Management
  • Overview
  • Historical Background
  • Historical Background
  • Historical Background
  • Slide Number 6
  • Water Supplies - Cachuma
  • Water Supplies - Cachuma
  • Water Supplies - Gibraltar
  • Water Supplies ndash Mission Tunnel
  • Water Supplies ndash State Water
  • Water Supplies ndash State Water
  • Water Supplies - Groundwater
  • Water Supplies ndash Groundwater
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Recycled Water Blending
  • Water Supplies - Desalination
  • Demand Management
  • Demand Projections
  • Water Supply Planning Target
  • Water Supply Planning Concepts
  • Water Supply Performance
  • Slide Number 25
  • Slide Number 26
  • Slide Number 27
  • Key Policy Issues
  • Next Steps
  • Discussion amp Feedback
  • Slide Number 31
  • Slide Number 32
  • Slide Number 33
  • Slide Number 34
  • Slide Number 35
  • Slide Number 36
  • Context of 1989 Agreement
  • Parties to the Agreement
  • Pass Through Summer no inflow
  • Smaller Reservoir Spills Sooner
  • Difference is Stored in Cachuma as Gibraltar Water
  • Slide Number 42
Detailed Simple
Maximum Capacity () Maximum Capacity (AF) 1980s Current
Lake Cachuma 32 8277 Cachuma 9700 8577
Gibraltar Reservoir 19 5000 Gibraltar 7400 6000
Mission Tunnel 4 1000 Groundwater 4500 4150
State Water Project 12 3000 Recycled Water 800
Groundwater 16 4150 State Water 3000
Recycled Water 3 800 Desalination 3125
Montecito Transfer 1 300 Totals 21600 25652
Desalination 12 3125
100 25652
Lake Cachuma
Gibraltar Reservoir
Mission Tunnel
State Water Project
Groundwater
Recycled Water
Montecito Transfer
Desalination
In our review of the FMP EIREIS we had a small discussion on how to characterize our water supplies in particular State Water In that discussion I commented that the average State Water delivery did not apply to how we did our water supply planning a
The supply target in this analysis is 18200 AFY with a goal of having no shortage greater than 1820 (10) in any year The critical year is 1951 This supply target was developed for us by our Community Development Department for the LTWSP and include
The Cityrsquos supply strategy as modeled is to
use all surface water supply first with a minimum (300 AFY) amount of local groundwater
use available State Water to get us to the supply target
if enough State Water is not available meet the supply target with local groundwater up to 4500 AFY
if that is not enough turn on the desal plant with a goal of having no shortage greater than 1820 AFY in the critical year
The modeling results presented in the first spreadsheet page (LTWSP2002) and the chart shows that our supplies meet the overall production target and satisfy the goal of having a shortage less than 10 in the critical year
In this analysis State Water is an important element in meeting the annual target and the critical year shortage goal The average delivery of State Water is meaningless in this analysis Also with the Cityrsquos approach our average delivery of State Wat
Another important consideration is that the estimates of State Water deliveries based on history result in historical critical periods for the Santa Ynez River and the State Water Project not coinciding I think it is acceptable for one to do this analys
I am not sure where this leaves us with respect to what we put in the FMP EISEIR for our individual water supplies For the City of Santa Barbara input I can give John Gray the bottom line of the spreadsheet with our averages for the 76 year period T
One value of the Cityrsquos approach is that it gives some meaning to the shortages that would happen (or at least are modeled to happen) if the surcharge is not included or other changes to Cachuma Project yield are suggested Our goal again is a shortage
LONG TERM WATER SUPPLY PROGRAM SUPPLY SCENARIO
As estimated by the Santa Ynez River Hydrology Model using 3 ft surcharge and BO fish releases
State Water critical period is moved to coincide with Cachuma critical period
Water Conservation and GW recharge is left out of this version
Includes ground water recovery and 10 safety margin values in acre feet production is 18200 AFY
Filename=LTWSP2002xls SWP
Year Cachuma Desal SWP GibJun GW Recycled Total Shortage
1918 8277 2357 6366 300 900 18200 14300 80
1919 8277 2400 5865 758 900 18200 14300 80
1920 8277 2400 5560 1063 900 18200 14300 80
1921 8277 2400 5483 1140 900 18200 14300 80
1922 8277 2792 5931 300 900 18200 14300 94 094
1923 8277 2894 5829 300 900 18200 14300 99 099
1924 8277 1500 5494 2029 900 18200 14300 50 05
1925 8277 1290 5294 2439 900 18200 14300 43 043
1926 8277 1740 5406 1877 900 18200 14300 58 058
1927 8277 2550 5643 830 900 18200 14300 85 085
1928 8277 2580 5548 895 900 18200 14300 86 086
1929 8277 1680 5425 1918 900 18200 14300 56 056
1930 8232 2250 5330 1488 900 18200 14300 75 057
1931 7306 2010 4673 3311 900 18200 14300 67 042
1932 7857 1950 4713 2780 900 18200 14300 65 044
1933 8277 2010 5451 1562 900 18200 14300 67 038
1934 8277 2640 5347 1036 900 18200 14300 88 033
1935 8277 1950 5528 1545 900 18200 14300 65 065
1936 8277 2460 5544 1019 900 18200 14300 82 082
1937 8277 2220 5797 1006 900 18200 14300 74 074
1938 8277 2613 6110 300 900 18200 14300 94 094
1939 8277 2640 5914 469 900 18200 14300 88 088
1940 8277 2460 5586 977 900 18200 14300 82 082
1941 8277 2318 6405 300 900 18200 14300 97 097
1942 8277 2473 6250 300 900 18200 14300 100 1
1943 8277 2534 6189 300 900 18200 14300 89 089
1944 8277 2639 6084 300 900 18200 14300 92 092
1945 8277 2700 5804 519 900 18200 14300 90 09
1946 8277 2640 5630 753 900 18200 14300 88 088
1947 8277 1710 5427 1886 900 18200 14300 57 075
1948 8277 1260 5236 2527 900 18200 14300 42 067
1949 7856 1604 1320 2021 4500 900 18200 -0 14300 44 065
1950 6760 1564 1140 3336 4500 900 18200 0 14300 38 067
1951 5470 3000 990 500 4500 900 15360 2840 01560380894 14300 33 088
1952 7546 2155 2880 4419 300 900 18200 14300 96 096
1953 8277 323 2700 5700 300 900 18200 14300 90 09
1954 8277 739 2490 5494 300 900 18200 14300 83 083
1955 8277 1222 2070 5431 300 900 18200 14300 69 069
1956 8234 2700 5462 904 900 18200 14300 90 09
1957 7521 2640 5411 1728 900 18200 14300 88 088
1958 7875 2700 5997 728 900 18200 14300 90 09
1959 8277 2640 5921 462 900 18200 14300 88 088
1960 8277 1890 5497 1636 900 18200 14300 63 063
1961 8277 1830 4178 3014 900 18200 14300 61 061
1962 8277 2340 4147 2536 900 18200 14300 78 078
1963 8277 2820 5537 666 900 18200 14300 94 094
1964 8277 2640 5327 1056 900 18200 14300 88 088
1965 8081 2460 5309 1450 900 18200 14300 82 082
1966 8220 2880 5639 561 900 18200 14300 96 096
1967 8277 2827 5896 300 900 18200 14300 96 096
1968 8277 2670 5675 678 900 18200 14300 89 089
1969 8277 2397 6326 300 900 18200 14300 93 093
1970 8277 2670 6036 317 900 18200 14300 89 089
1971 8277 2820 5733 470 900 18200 14300 94 094
1972 8277 2640 5443 940 900 18200 14300 88 088
1973 8277 2460 5747 816 900 18200 14300 82 082
1974 8277 2820 5785 418 900 18200 14300 94 094
1975 8277 2880 5742 401 900 18200 14300 96 096
1976 8277 2640 5515 868 900 18200 14300 88 088
1977 8277 990 5279 2754 900 18200 14300 33 033
1978 8277 2040 6052 931 900 18200 14300 68 068
1979 8277 2550 6171 302 900 18200 14300 85 085
1980 8277 2460 6188 375 900 18200 14300 82 082
1981 8277 2490 6145 388 900 18200 14300 83 083
1982 8277 2735 5988 300 900 18200 14300 94 094
1983 8277 1768 6955 300 900 18200 14300 100 1
1984 8277 2419 6304 300 900 18200 14300 100 1
1985 8277 2872 5851 300 900 18200 14300 96 096
1986 8277 2430 5703 890 900 18200 14300 81 081
1987 8277 2070 5321 1632 900 18200 14300 69 069
1988 8277 1290 5858 1875 900 18200 14300 43 043
1989 7990 1740 5641 1929 900 18200 14300 58 058
1990 6885 2365 1380 2170 4500 900 18200 14300 46 046
1991 6829 2388 870 2713 4500 900 18200 14300 29 029
1992 7997 2213 930 5860 300 900 18200 14300 31 031
1993 8277 1857 6866 300 900 18200 14300 76 076
Average 8122 231 2249 5436 1224 900 18163 769342 088
2241
7470
163592
LONG TERM WATER SUPPLY PROGRAM SUPPLY SCENARIO
As estimated by the Santa Ynez River Hydrology Model using 3 ft surcharge and BO fish releases
State Water deliveries are based on delivery estimates provided by CCWA in 2001
Water Conservation and GW recharge is left out of this version
Includes ground water recovery and 10 safety margin values in acre feet production is 18200 AFY
Filename=LTWSP2002xls SWP
Year Cachuma Desal SWP GibJun GW Recycled Total Shortage
1918 8277 2357 6366 300 900 18200 14300 80
1919 8277 2400 5865 758 900 18200 14300 80
1920 8277 2400 5560 1063 900 18200 14300 80
1921 8277 2400 5483 1140 900 18200 14300 80
1922 8277 2792 5931 300 900 18200 14300 94 094
1923 8277 2894 5829 300 900 18200 14300 99 099
1924 8277 1500 5494 2029 900 18200 14300 50 05
1925 8277 1290 5294 2439 900 18200 14300 43 043
1926 8277 1740 5406 1877 900 18200 14300 58 058
1927 8277 2550 5643 830 900 18200 14300 85 085
1928 8277 2580 5548 895 900 18200 14300 86 086
1929 8277 1680 5425 1918 900 18200 14300 56 056
1930 8232 1710 5330 2028 900 18200 14300 57 057
1931 7306 1260 4673 4061 900 18200 14300 42 042
1932 7857 1320 4713 3410 900 18200 14300 44 044
1933 8277 1140 5451 2432 900 18200 14300 38 038
1934 8277 990 5347 2686 900 18200 14300 33 033
1935 8277 1950 5528 1545 900 18200 14300 65 065
1936 8277 2460 5544 1019 900 18200 14300 82 082
1937 8277 2220 5797 1006 900 18200 14300 74 074
1938 8277 2613 6110 300 900 18200 14300 94 094
1939 8277 2640 5914 469 900 18200 14300 88 088
1940 8277 2460 5586 977 900 18200 14300 82 082
1941 8277 2318 6405 300 900 18200 14300 97 097
1942 8277 2473 6250 300 900 18200 14300 100 1
1943 8277 2534 6189 300 900 18200 14300 89 089
1944 8277 2639 6084 300 900 18200 14300 92 092
1945 8277 2700 5804 519 900 18200 14300 90 09
1946 8277 2640 5630 753 900 18200 14300 88 088
1947 8277 2250 5427 1346 900 18200 14300 75 075
1948 8277 2010 5236 1777 900 18200 14300 67 067
1949 7856 974 1950 2021 4500 900 18200 14300 65 065
1950 6760 694 2010 3336 4500 900 18200 14300 67 067
1951 5470 3000 2640 500 4500 900 17010 1190 00653787487 14300 88 088
1952 7546 2155 2880 4419 300 900 18200 14300 96 096
1953 8277 323 2700 5700 300 900 18200 14300 90 09
1954 8277 739 2490 5494 300 900 18200 14300 83 083
1955 8277 1222 2070 5431 300 900 18200 14300 69 069
1956 8234 2700 5462 904 900 18200 14300 90 09
1957 7521 2640 5411 1728 900 18200 14300 88 088
1958 7875 2700 5997 728 900 18200 14300 90 09
1959 8277 2640 5921 462 900 18200 14300 88 088
1960 8277 1890 5497 1636 900 18200 14300 63 063
1961 8277 1830 4178 3014 900 18200 14300 61 061
1962 8277 2340 4147 2536 900 18200 14300 78 078
1963 8277 2820 5537 666 900 18200 14300 94 094
1964 8277 2640 5327 1056 900 18200 14300 88 088
1965 8081 2460 5309 1450 900 18200 14300 82 082
1966 8220 2880 5639 561 900 18200 14300 96 096
1967 8277 2827 5896 300 900 18200 14300 96 096
1968 8277 2670 5675 678 900 18200 14300 89 089
1969 8277 2397 6326 300 900 18200 14300 93 093
1970 8277 2670 6036 317 900 18200 14300 89 089
1971 8277 2820 5733 470 900 18200 14300 94 094
1972 8277 2640 5443 940 900 18200 14300 88 088
1973 8277 2460 5747 816 900 18200 14300 82 082
1974 8277 2820 5785 418 900 18200 14300 94 094
1975 8277 2880 5742 401 900 18200 14300 96 096
1976 8277 2640 5515 868 900 18200 14300 88 088
1977 8277 990 5279 2754 900 18200 14300 33 033
1978 8277 2040 6052 931 900 18200 14300 68 068
1979 8277 2550 6171 302 900 18200 14300 85 085
1980 8277 2460 6188 375 900 18200 14300 82 082
1981 8277 2490 6145 388 900 18200 14300 83 083
1982 8277 2735 5988 300 900 18200 14300 94 094
1983 8277 1768 6955 300 900 18200 14300 100 1
1984 8277 2419 6304 300 900 18200 14300 100 1
1985 8277 2872 5851 300 900 18200 14300 96 096
1986 8277 2430 5703 890 900 18200 14300 81 081
1987 8277 2070 5321 1632 900 18200 14300 69 069
1988 8277 1290 5858 1875 900 18200 14300 43 043
1989 7990 1740 5641 1929 900 18200 14300 58 058
1990 6885 2365 1380 2170 4500 900 18200 14300 46 046
1991 6829 2388 870 2713 4500 900 18200 14300 29 029
1992 7997 2213 930 5860 300 900 18200 14300 31 031
1993 8277 1857 6866 300 900 18200 14300 76 076
Average 8122 211 2249 5436 1266 900 18184 769342 088
2241
7470
163592
1918 1918 1918 1918 1918 1918 1918
1919 1919 1919 1919 1919 1919 1919
1920 1920 1920 1920 1920 1920 1920
1921 1921 1921 1921 1921 1921 1921
1922 1922 1922 1922 1922 1922 1922
1923 1923 1923 1923 1923 1923 1923
1924 1924 1924 1924 1924 1924 1924
1925 1925 1925 1925 1925 1925 1925
1926 1926 1926 1926 1926 1926 1926
1927 1927 1927 1927 1927 1927 1927
1928 1928 1928 1928 1928 1928 1928
1929 1929 1929 1929 1929 1929 1929
1930 1930 1930 1930 1930 1930 1930
1931 1931 1931 1931 1931 1931 1931
1932 1932 1932 1932 1932 1932 1932
1933 1933 1933 1933 1933 1933 1933
1934 1934 1934 1934 1934 1934 1934
1935 1935 1935 1935 1935 1935 1935
1936 1936 1936 1936 1936 1936 1936
1937 1937 1937 1937 1937 1937 1937
1938 1938 1938 1938 1938 1938 1938
1939 1939 1939 1939 1939 1939 1939
1940 1940 1940 1940 1940 1940 1940
1941 1941 1941 1941 1941 1941 1941
1942 1942 1942 1942 1942 1942 1942
1943 1943 1943 1943 1943 1943 1943
1944 1944 1944 1944 1944 1944 1944
1945 1945 1945 1945 1945 1945 1945
1946 1946 1946 1946 1946 1946 1946
1947 1947 1947 1947 1947 1947 1947
1948 1948 1948 1948 1948 1948 1948
1949 1949 1949 1949 1949 1949 1949
1950 1950 1950 1950 1950 1950 1950
1951 1951 1951 1951 1951 1951 1951
1952 1952 1952 1952 1952 1952 1952
1953 1953 1953 1953 1953 1953 1953
1954 1954 1954 1954 1954 1954 1954
1955 1955 1955 1955 1955 1955 1955
1956 1956 1956 1956 1956 1956 1956
1957 1957 1957 1957 1957 1957 1957
1958 1958 1958 1958 1958 1958 1958
1959 1959 1959 1959 1959 1959 1959
1960 1960 1960 1960 1960 1960 1960
1961 1961 1961 1961 1961 1961 1961
1962 1962 1962 1962 1962 1962 1962
1963 1963 1963 1963 1963 1963 1963
1964 1964 1964 1964 1964 1964 1964
1965 1965 1965 1965 1965 1965 1965
1966 1966 1966 1966 1966 1966 1966
1967 1967 1967 1967 1967 1967 1967
1968 1968 1968 1968 1968 1968 1968
1969 1969 1969 1969 1969 1969 1969
1970 1970 1970 1970 1970 1970 1970
1971 1971 1971 1971 1971 1971 1971
1972 1972 1972 1972 1972 1972 1972
1973 1973 1973 1973 1973 1973 1973
1974 1974 1974 1974 1974 1974 1974
1975 1975 1975 1975 1975 1975 1975
1976 1976 1976 1976 1976 1976 1976
1977 1977 1977 1977 1977 1977 1977
1978 1978 1978 1978 1978 1978 1978
1979 1979 1979 1979 1979 1979 1979
1980 1980 1980 1980 1980 1980 1980
1981 1981 1981 1981 1981 1981 1981
1982 1982 1982 1982 1982 1982 1982
1983 1983 1983 1983 1983 1983 1983
1984 1984 1984 1984 1984 1984 1984
1985 1985 1985 1985 1985 1985 1985
1986 1986 1986 1986 1986 1986 1986
1987 1987 1987 1987 1987 1987 1987
1988 1988 1988 1988 1988 1988 1988
1989 1989 1989 1989 1989 1989 1989
1990 1990 1990 1990 1990 1990 1990
1991 1991 1991 1991 1991 1991 1991
1992 1992 1992 1992 1992 1992 1992
1993 1993 1993 1993 1993 1993 1993
Cachuma
Gibraltar
Groundwater
Recycled Water
State Water
Desalination
Detailed Simple
Maximum Capacity () Maximum Capacity (AF) 1980s Current
Lake Cachuma 32 8277 Cachuma 9700 8577
Gibraltar Reservoir 19 5000 Gibraltar 7400 6000
Mission Tunnel 4 1000 Groundwater 4500 4150
State Water Project 12 3000 Recycled Water 800
Groundwater 16 4150 State Water 3000
Recycled Water 3 800 Desalination 3125
Montecito Transfer 1 300 Totals 21600 25652
Desalination 12 3125
100 25652
Page 11: PUBLIC WORKS DEPARTMENT WATER RESOURCES DIVISION …...mountain • Supply ranges from ... Water Supplies –State Water • A small, but useful part of our water supply • Both the

Pie Chart Data

Cachuma8277 AF
Gibraltar6000 AF
Groundwater4150 AF
State Water3000 AF
Recycled800 AF
Desalination3125 AF
Current
Current Water Supply(AF of Capacity)
Gibraltar7400 AF
Cachuma9700 AF
Groundwater4500 AF
1980s
1980s Water Supply(AF of Capacity)

SantaBarbaraCAgovWater4

Historical Backgroundbull Gibraltar Pass Through Agreement

(1989)- Gibraltar Enlargement Deferred- City to ldquoPass Throughrdquo Gibraltar

Water to Cachuma

bull 1987 ndash 1991 Drought - 50 Cutbacks Sought - State Water Bond Approval- Advisory Vote for Desal

Gibraltar Reservoir1989

SantaBarbaraCAgovWater5

Historical BackgroundLong-Term Water Supply Program (1994)

- Added Recycled WaterDesal amp State Water

- Critical Period Planning- Demand Estimate per

General Plan Update (1989)- Water Conservation savings

of 1500 AFY planned

LTWSP Water Supply(AF of Capacity)

Cachuma8277 AF

Gibraltar6000 AF

Groundwater4150 AF

State Water3000 AF

Recycled800 AF

Desalination3125 AF

Chart2

Cachuma8277 AF
Gibraltar6000 AF
Groundwater4150 AF
State Water3000 AF
Recycled800 AF
Desalination3125 AF
Current
LTWSP Water Supply(AF of Capacity)
8577
6000
4150
800
3000
3125

ltwspCht

ampA
Page ampP
Recycled
Cachuma
Gib etc
SWP
GW
Desal
Shortage
Water Supply (AF)
Figure 1 Long-Term Water Supply ProgramUpdated to include surchararge fish releases and 1990 drought
900
82773366
6366
23566634
300
900
82773366
5865
2400
7576634
900
82773366
5560
2400
10626634
900
82773366
5483
2400
11396634
900
82773366
5931
27916634
300
900
82773366
5829
28936634
300
900
82773366
5494
1500
20286634
900
82773366
5294
1290
24386634
900
82773366
5406
1740
18766634
900
82773366
5643
2550
8296634
900
82773366
5548
2580
8946634
900
82773366
5425
1680
19176634
900
8231514135
5330
1710
2028485865
900
7305562347
4673246
1260
4061191653
900
7856777469
471278
1320
3410442531
900
82773366
5451
1140
24316634
900
82773366
5347
990
26856634
900
82773366
5528
1950
15446634
900
82773366
5544
2460
10186634
900
82773366
5797
2220
10056634
900
82773366
6110
26126634
300
900
82773366
5914
2640
4686634
900
82773366
5586
2460
9766634
900
82773366
6405
23176634
300
900
82773366
6250
24726634
300
900
82773366
6189
25336634
300
900
82773366
6084
26386634
300
900
82773366
5804
2700
5186634
900
82773366
5630
2640
7526634
900
82773366
5427
2250
13456634
900
82773366
5236
2010
17766634
900
7855786017
2020508
1950
4500
974
900
6759906438
3335608
2010
4500
694485562
900
547040079
500
2640
4500
3000
1189893227
900
7545802755
441926
2880
300
2155
900
82773366
5700
2700
300
323
900
82773366
5494
2490
300
739
900
82773366
5431
2070
300
1222
900
8233699836
5462
2700
904300164
900
7520604423
5411
2640
1728395577
900
787483284
5997
2700
72816716
900
82773366
5921
2640
4616634
900
82773366
5497
1890
16356634
900
82773366
4178353
1830
30143104
900
82773366
4147065
2340
25355984
900
82773366
5537
2820
6656634
900
82773366
5327
2640
10556634
900
8080887468
5309
2460
1450112532
900
8219636025
5639
2880
561363975
900
82773366
5896
28266634
300
900
82773366
5675
2670
6776634
900
82773366
6326
23966634
300
900
82773366
6036
2670
3166634
900
82773366
5733
2820
4696634
900
82773366
5443
2640
9396634
900
82773366
5747
2460
8156634
900
82773366
5785
2820
4176634
900
82773366
5742
2880
4006634
900
82773366
5515
2640
8676634
900
82773366
5279
990
27536634
900
82773366
6052
2040
9306634
900
82773366
6171
2550
3016634
900
82773366
6188
2460
3746634
900
82773366
6145
2490
3876634
900
82773366
5988
27346634
300
900
82773366
6955
17676634
300
900
82773366
6304
24186634
300
900
82773366
5851
28716634
300
900
82773366
5703
2430
8896634
900
82773366
5321
2070
16316634
900
82773366
5858
1290
18746634
900
7990356312
5641
1740
1928643688
900
6885154509
2170335
1380
4500
2364510491
900
682933383
271296
870
4500
238770617
900
7997267505
5860
930
300
2213
900
82773366
6866
18566634
300

LTWSP2002

LTWSP2002 (coincide)

Text of Accompanying Email

Chart1

Maximum Capacity (AF)
8277
5000
1000
3000
4150
800
300
3125

Pie Chart Data

Pie Chart Data

Cachuma8277 AF
Gibraltar6000 AF
Groundwater4150 AF
State Water3000 AF
Recycled800 AF
Desalination3125 AF
Current
Current Water Supply(AF of Capacity)
Gibraltar7400 AF
Cachuma9700 AF
Groundwater4500 AF
1980s
1980s Water Supply(AF of Capacity)

SantaBarbaraCAgovWater6

City of Santa Barbara Water Demand(Acre Feet of Production by Calendar Year - Potable + Recycled)

0

2500

5000

7500

10000

12500

15000

17500

20000

1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010

Figure ___

Total System Production (AF)

12 Months Ending

13374

February 28 2011

Post-DroughtPre-Drought Drought

SantaBarbaraCAgovWater7

Water Supplies - Cachumabull Primary City

Water Supply

bull Multi-Year SourceA few dry years notan issue

bull 8277 AFYCurrent Entitlement

bull 7863 AFYProjected Entitlement (2030)

SantaBarbaraCAgovWater8

Water Supplies - Cachuma

0

50000

100000

150000

200000

250000

1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011Water Year

Historical StorageVolumes1987-1993 Period

Recent History of Lake Cachuma Storage Levels (AF)With 1987-1993 Period Shown for Comparison

Figure ____

SantaBarbaraCAgovWater9

Water Supplies - Gibraltarbull ldquoPass Throughrdquo

implementationin progress

bull Modelingunder review

bull Conservative planning assumptions used pending modeling results

bull Sedimentation management study planned

SantaBarbaraCAgovWater10

Water Supplies ndash Mission Tunnelbull Infiltration from

percolating groundwateron both sides of themountain

bull Supply ranges from500 to 2375 AFY

bull Average contribution1125 AFY

SantaBarbaraCAgovWater11

Water Supplies ndash State Waterbull A small but useful part of our water

supply

bull Both the water amp the pipeline have value

bull Cityrsquos maximum delivery amount - 3300 AFY

bull Deliveries subject to availability

SantaBarbaraCAgovWater12

Water Supplies ndash State Waterbull Projections based on DWR

modeling using long-term databull No Delta or storage

improvementsbull Environmental limits remain in

effectbull Climate change effects assumed

SantaBarbaraCAgovWater13

Water Supplies - Groundwater

SantaBarbaraCAgovWater14

Water Supplies ndash Groundwaterbull Pumping occurs in

Downtown amp OuterState Street areas

bull 1300 AFY safe yieldbull Average City pumping

assumed at ~1100 AFYbull Maximum of 4150 AFY during drought

Ortega Groundwater Treatment Plant

SantaBarbaraCAgovWater15

Water Supplies ndash Recycled WaterRecycled Water Distribution System

SantaBarbaraCAgovWater16

Water Supplies ndash Recycled Waterbull Displaces use of potable

water amp extends water supplybull Current connected

demand 800 AFYbull 300 AFY potential demand amp capacity identifiedbull Target demand 1100 AFYbull Blending an economical solution for reducing mineral

contentbull Policy issues related to blending

SantaBarbaraCAgovWater17

Water Supplies ndash Recycled Water

SantaBarbaraCAgovWater18

Recycled Water Blending bull Filterability (turbidity) - solution identifiedbull Mineral Content (salts) separate issue -

- Blending $180AF added operating cost- MFRO $341AF added cost + $46 million

capitalbull Proposed Policy ldquoContingency Plan to

eliminate blending with goal to be ready to implement plan based on economic regulatory or water supply requirementsrdquo

SantaBarbaraCAgovWater19

Water Supplies - Desalination

bull Reliable butexpensive source

bull $177 million toreactivate if needed

bull Important to keepfor use in case ofextended drought

bull Proposed Planning Goal Avoid use until year six of Critical Drought Period

SantaBarbaraCAgovWater20

Demand Managementbull Declining demand

- Best Management Practices (CUWCC)- Conservation Program- 20 x 2020- Plumbing Code amp Appliance Standards

bull Projected development - 800 to 900 AFY bull Water Conservation Technical Evaluation

SantaBarbaraCAgovWater21

Demand Projections

12000

12500

13000

13500

14000

14500

15000

2010 2012 2014 2016 2018 2020 2022 2024 2026 2028 2030

Plan SB Demand (No Plumbing Code or Conservation Effects)Plumbing Code Effects OnlyPlumbing Code + Program B20 X 2020 Trend Line20 X 2020 Regulatory Limit

Water System Demand Projections (AFY)

SantaBarbaraCAgovWater22

Water Supply Planning Target

Projected Demand 14000Safety Margin (10) + 1400

Water Supply Target = 15400 AFY

SantaBarbaraCAgovWater23

Water Supply Planning Conceptsbull Planning for 6-Year Critical Drought Periodbull Water Supply Modeling - Using Historical

Data with Current Water Supply Sources and Projected Demands

bull Ongoing Conservation vs Short Term Planned Demand Reductions for Extraordinary Situations

SantaBarbaraCAgovWater24

Water Supply Performance

SantaBarbaraCAgovWater25

SantaBarbaraCAgovWater26

SantaBarbaraCAgovWater27

SantaBarbaraCAgovWater28

Key Policy Issuesbull Achieve 20 x 2020 through BMPs Additional

Conservation Measures amp Recycled Waterbull Planning for a 6-Year Duration Critical Drought

- Manage supplies to avoid use of Desal until year six- Water Banking Purchases- Planned Demand Reductions 10 to 15- Recycled Water Expansion

bull Recycled Water Blending bull Sedimentation Management

SantaBarbaraCAgovWater29

Next Stepsbull Finalize updated Long-Term Water

Supply Plan- April 11 Final Comments from Water

Commission- Environmental Review

bull Prepare Urban Water Management Plan Update per State Requirements

bull Target Adoption Date for LTWSP amp UWMP - June 14 2011

SantaBarbaraCAgovWater30

Discussion amp Feedback

SantaBarbaraCAgovWater31

SantaBarbaraCAgovWater32

SantaBarbaraCAgovWater33

SantaBarbaraCAgovWater34

SantaBarbaraCAgovWater35

SantaBarbaraCAgovWater36

Upper Santa Ynez River Operations Agreement(ldquoPass Through Agreementrdquo)

SantaBarbaraCAgovWater37

Context of 1989 Agreementbull City water supply shortage identified ndash Gibraltar

vulnerable to siltation

bull Solution Raise Gibraltar Dam 20rsquo to 40rsquo

bull Challenges by downstream and environmental interests

bull Cachuma enlargement under consideration

SantaBarbaraCAgovWater38

Parties to the Agreement

bull City of Santa Barbarabull Carpinteria Valley Water Districtbull Goleta Water Districtbull Montecito Water Districtbull Santa Ynez River Water Conservation Districtbull SYRWCD Improvement District No 1

Consent and Acknowledgement by US Bureau of Reclamation

SantaBarbaraCAgovWater39

Pass Through Summer no inflow

Current volume (reflects on-going siltation since 1988)

1988 Reservoir volume

Note different siltation levels

SantaBarbaraCAgovWater40

Smaller Reservoir Spills Sooner1988 Reservoir volume

Current Reservoir volume

SantaBarbaraCAgovWater41

Difference is Stored in Cachuma as Gibraltar WaterBase Reservoir

Actual Reservoir

SantaBarbaraCAgovWater42

  • Long Term Water Supply Plan Adaptive Management
  • Overview
  • Historical Background
  • Historical Background
  • Historical Background
  • Slide Number 6
  • Water Supplies - Cachuma
  • Water Supplies - Cachuma
  • Water Supplies - Gibraltar
  • Water Supplies ndash Mission Tunnel
  • Water Supplies ndash State Water
  • Water Supplies ndash State Water
  • Water Supplies - Groundwater
  • Water Supplies ndash Groundwater
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Recycled Water Blending
  • Water Supplies - Desalination
  • Demand Management
  • Demand Projections
  • Water Supply Planning Target
  • Water Supply Planning Concepts
  • Water Supply Performance
  • Slide Number 25
  • Slide Number 26
  • Slide Number 27
  • Key Policy Issues
  • Next Steps
  • Discussion amp Feedback
  • Slide Number 31
  • Slide Number 32
  • Slide Number 33
  • Slide Number 34
  • Slide Number 35
  • Slide Number 36
  • Context of 1989 Agreement
  • Parties to the Agreement
  • Pass Through Summer no inflow
  • Smaller Reservoir Spills Sooner
  • Difference is Stored in Cachuma as Gibraltar Water
  • Slide Number 42
Detailed Simple
Maximum Capacity () Maximum Capacity (AF) 1980s Current
Lake Cachuma 32 8277 Cachuma 9700 8577
Gibraltar Reservoir 19 5000 Gibraltar 7400 6000
Mission Tunnel 4 1000 Groundwater 4500 4150
State Water Project 12 3000 Recycled Water 800
Groundwater 16 4150 State Water 3000
Recycled Water 3 800 Desalination 3125
Montecito Transfer 1 300 Totals 21600 25652
Desalination 12 3125
100 25652
Lake Cachuma
Gibraltar Reservoir
Mission Tunnel
State Water Project
Groundwater
Recycled Water
Montecito Transfer
Desalination
In our review of the FMP EIREIS we had a small discussion on how to characterize our water supplies in particular State Water In that discussion I commented that the average State Water delivery did not apply to how we did our water supply planning a
The supply target in this analysis is 18200 AFY with a goal of having no shortage greater than 1820 (10) in any year The critical year is 1951 This supply target was developed for us by our Community Development Department for the LTWSP and include
The Cityrsquos supply strategy as modeled is to
use all surface water supply first with a minimum (300 AFY) amount of local groundwater
use available State Water to get us to the supply target
if enough State Water is not available meet the supply target with local groundwater up to 4500 AFY
if that is not enough turn on the desal plant with a goal of having no shortage greater than 1820 AFY in the critical year
The modeling results presented in the first spreadsheet page (LTWSP2002) and the chart shows that our supplies meet the overall production target and satisfy the goal of having a shortage less than 10 in the critical year
In this analysis State Water is an important element in meeting the annual target and the critical year shortage goal The average delivery of State Water is meaningless in this analysis Also with the Cityrsquos approach our average delivery of State Wat
Another important consideration is that the estimates of State Water deliveries based on history result in historical critical periods for the Santa Ynez River and the State Water Project not coinciding I think it is acceptable for one to do this analys
I am not sure where this leaves us with respect to what we put in the FMP EISEIR for our individual water supplies For the City of Santa Barbara input I can give John Gray the bottom line of the spreadsheet with our averages for the 76 year period T
One value of the Cityrsquos approach is that it gives some meaning to the shortages that would happen (or at least are modeled to happen) if the surcharge is not included or other changes to Cachuma Project yield are suggested Our goal again is a shortage
LONG TERM WATER SUPPLY PROGRAM SUPPLY SCENARIO
As estimated by the Santa Ynez River Hydrology Model using 3 ft surcharge and BO fish releases
State Water critical period is moved to coincide with Cachuma critical period
Water Conservation and GW recharge is left out of this version
Includes ground water recovery and 10 safety margin values in acre feet production is 18200 AFY
Filename=LTWSP2002xls SWP
Year Cachuma Desal SWP GibJun GW Recycled Total Shortage
1918 8277 2357 6366 300 900 18200 14300 80
1919 8277 2400 5865 758 900 18200 14300 80
1920 8277 2400 5560 1063 900 18200 14300 80
1921 8277 2400 5483 1140 900 18200 14300 80
1922 8277 2792 5931 300 900 18200 14300 94 094
1923 8277 2894 5829 300 900 18200 14300 99 099
1924 8277 1500 5494 2029 900 18200 14300 50 05
1925 8277 1290 5294 2439 900 18200 14300 43 043
1926 8277 1740 5406 1877 900 18200 14300 58 058
1927 8277 2550 5643 830 900 18200 14300 85 085
1928 8277 2580 5548 895 900 18200 14300 86 086
1929 8277 1680 5425 1918 900 18200 14300 56 056
1930 8232 2250 5330 1488 900 18200 14300 75 057
1931 7306 2010 4673 3311 900 18200 14300 67 042
1932 7857 1950 4713 2780 900 18200 14300 65 044
1933 8277 2010 5451 1562 900 18200 14300 67 038
1934 8277 2640 5347 1036 900 18200 14300 88 033
1935 8277 1950 5528 1545 900 18200 14300 65 065
1936 8277 2460 5544 1019 900 18200 14300 82 082
1937 8277 2220 5797 1006 900 18200 14300 74 074
1938 8277 2613 6110 300 900 18200 14300 94 094
1939 8277 2640 5914 469 900 18200 14300 88 088
1940 8277 2460 5586 977 900 18200 14300 82 082
1941 8277 2318 6405 300 900 18200 14300 97 097
1942 8277 2473 6250 300 900 18200 14300 100 1
1943 8277 2534 6189 300 900 18200 14300 89 089
1944 8277 2639 6084 300 900 18200 14300 92 092
1945 8277 2700 5804 519 900 18200 14300 90 09
1946 8277 2640 5630 753 900 18200 14300 88 088
1947 8277 1710 5427 1886 900 18200 14300 57 075
1948 8277 1260 5236 2527 900 18200 14300 42 067
1949 7856 1604 1320 2021 4500 900 18200 -0 14300 44 065
1950 6760 1564 1140 3336 4500 900 18200 0 14300 38 067
1951 5470 3000 990 500 4500 900 15360 2840 01560380894 14300 33 088
1952 7546 2155 2880 4419 300 900 18200 14300 96 096
1953 8277 323 2700 5700 300 900 18200 14300 90 09
1954 8277 739 2490 5494 300 900 18200 14300 83 083
1955 8277 1222 2070 5431 300 900 18200 14300 69 069
1956 8234 2700 5462 904 900 18200 14300 90 09
1957 7521 2640 5411 1728 900 18200 14300 88 088
1958 7875 2700 5997 728 900 18200 14300 90 09
1959 8277 2640 5921 462 900 18200 14300 88 088
1960 8277 1890 5497 1636 900 18200 14300 63 063
1961 8277 1830 4178 3014 900 18200 14300 61 061
1962 8277 2340 4147 2536 900 18200 14300 78 078
1963 8277 2820 5537 666 900 18200 14300 94 094
1964 8277 2640 5327 1056 900 18200 14300 88 088
1965 8081 2460 5309 1450 900 18200 14300 82 082
1966 8220 2880 5639 561 900 18200 14300 96 096
1967 8277 2827 5896 300 900 18200 14300 96 096
1968 8277 2670 5675 678 900 18200 14300 89 089
1969 8277 2397 6326 300 900 18200 14300 93 093
1970 8277 2670 6036 317 900 18200 14300 89 089
1971 8277 2820 5733 470 900 18200 14300 94 094
1972 8277 2640 5443 940 900 18200 14300 88 088
1973 8277 2460 5747 816 900 18200 14300 82 082
1974 8277 2820 5785 418 900 18200 14300 94 094
1975 8277 2880 5742 401 900 18200 14300 96 096
1976 8277 2640 5515 868 900 18200 14300 88 088
1977 8277 990 5279 2754 900 18200 14300 33 033
1978 8277 2040 6052 931 900 18200 14300 68 068
1979 8277 2550 6171 302 900 18200 14300 85 085
1980 8277 2460 6188 375 900 18200 14300 82 082
1981 8277 2490 6145 388 900 18200 14300 83 083
1982 8277 2735 5988 300 900 18200 14300 94 094
1983 8277 1768 6955 300 900 18200 14300 100 1
1984 8277 2419 6304 300 900 18200 14300 100 1
1985 8277 2872 5851 300 900 18200 14300 96 096
1986 8277 2430 5703 890 900 18200 14300 81 081
1987 8277 2070 5321 1632 900 18200 14300 69 069
1988 8277 1290 5858 1875 900 18200 14300 43 043
1989 7990 1740 5641 1929 900 18200 14300 58 058
1990 6885 2365 1380 2170 4500 900 18200 14300 46 046
1991 6829 2388 870 2713 4500 900 18200 14300 29 029
1992 7997 2213 930 5860 300 900 18200 14300 31 031
1993 8277 1857 6866 300 900 18200 14300 76 076
Average 8122 231 2249 5436 1224 900 18163 769342 088
2241
7470
163592
LONG TERM WATER SUPPLY PROGRAM SUPPLY SCENARIO
As estimated by the Santa Ynez River Hydrology Model using 3 ft surcharge and BO fish releases
State Water deliveries are based on delivery estimates provided by CCWA in 2001
Water Conservation and GW recharge is left out of this version
Includes ground water recovery and 10 safety margin values in acre feet production is 18200 AFY
Filename=LTWSP2002xls SWP
Year Cachuma Desal SWP GibJun GW Recycled Total Shortage
1918 8277 2357 6366 300 900 18200 14300 80
1919 8277 2400 5865 758 900 18200 14300 80
1920 8277 2400 5560 1063 900 18200 14300 80
1921 8277 2400 5483 1140 900 18200 14300 80
1922 8277 2792 5931 300 900 18200 14300 94 094
1923 8277 2894 5829 300 900 18200 14300 99 099
1924 8277 1500 5494 2029 900 18200 14300 50 05
1925 8277 1290 5294 2439 900 18200 14300 43 043
1926 8277 1740 5406 1877 900 18200 14300 58 058
1927 8277 2550 5643 830 900 18200 14300 85 085
1928 8277 2580 5548 895 900 18200 14300 86 086
1929 8277 1680 5425 1918 900 18200 14300 56 056
1930 8232 1710 5330 2028 900 18200 14300 57 057
1931 7306 1260 4673 4061 900 18200 14300 42 042
1932 7857 1320 4713 3410 900 18200 14300 44 044
1933 8277 1140 5451 2432 900 18200 14300 38 038
1934 8277 990 5347 2686 900 18200 14300 33 033
1935 8277 1950 5528 1545 900 18200 14300 65 065
1936 8277 2460 5544 1019 900 18200 14300 82 082
1937 8277 2220 5797 1006 900 18200 14300 74 074
1938 8277 2613 6110 300 900 18200 14300 94 094
1939 8277 2640 5914 469 900 18200 14300 88 088
1940 8277 2460 5586 977 900 18200 14300 82 082
1941 8277 2318 6405 300 900 18200 14300 97 097
1942 8277 2473 6250 300 900 18200 14300 100 1
1943 8277 2534 6189 300 900 18200 14300 89 089
1944 8277 2639 6084 300 900 18200 14300 92 092
1945 8277 2700 5804 519 900 18200 14300 90 09
1946 8277 2640 5630 753 900 18200 14300 88 088
1947 8277 2250 5427 1346 900 18200 14300 75 075
1948 8277 2010 5236 1777 900 18200 14300 67 067
1949 7856 974 1950 2021 4500 900 18200 14300 65 065
1950 6760 694 2010 3336 4500 900 18200 14300 67 067
1951 5470 3000 2640 500 4500 900 17010 1190 00653787487 14300 88 088
1952 7546 2155 2880 4419 300 900 18200 14300 96 096
1953 8277 323 2700 5700 300 900 18200 14300 90 09
1954 8277 739 2490 5494 300 900 18200 14300 83 083
1955 8277 1222 2070 5431 300 900 18200 14300 69 069
1956 8234 2700 5462 904 900 18200 14300 90 09
1957 7521 2640 5411 1728 900 18200 14300 88 088
1958 7875 2700 5997 728 900 18200 14300 90 09
1959 8277 2640 5921 462 900 18200 14300 88 088
1960 8277 1890 5497 1636 900 18200 14300 63 063
1961 8277 1830 4178 3014 900 18200 14300 61 061
1962 8277 2340 4147 2536 900 18200 14300 78 078
1963 8277 2820 5537 666 900 18200 14300 94 094
1964 8277 2640 5327 1056 900 18200 14300 88 088
1965 8081 2460 5309 1450 900 18200 14300 82 082
1966 8220 2880 5639 561 900 18200 14300 96 096
1967 8277 2827 5896 300 900 18200 14300 96 096
1968 8277 2670 5675 678 900 18200 14300 89 089
1969 8277 2397 6326 300 900 18200 14300 93 093
1970 8277 2670 6036 317 900 18200 14300 89 089
1971 8277 2820 5733 470 900 18200 14300 94 094
1972 8277 2640 5443 940 900 18200 14300 88 088
1973 8277 2460 5747 816 900 18200 14300 82 082
1974 8277 2820 5785 418 900 18200 14300 94 094
1975 8277 2880 5742 401 900 18200 14300 96 096
1976 8277 2640 5515 868 900 18200 14300 88 088
1977 8277 990 5279 2754 900 18200 14300 33 033
1978 8277 2040 6052 931 900 18200 14300 68 068
1979 8277 2550 6171 302 900 18200 14300 85 085
1980 8277 2460 6188 375 900 18200 14300 82 082
1981 8277 2490 6145 388 900 18200 14300 83 083
1982 8277 2735 5988 300 900 18200 14300 94 094
1983 8277 1768 6955 300 900 18200 14300 100 1
1984 8277 2419 6304 300 900 18200 14300 100 1
1985 8277 2872 5851 300 900 18200 14300 96 096
1986 8277 2430 5703 890 900 18200 14300 81 081
1987 8277 2070 5321 1632 900 18200 14300 69 069
1988 8277 1290 5858 1875 900 18200 14300 43 043
1989 7990 1740 5641 1929 900 18200 14300 58 058
1990 6885 2365 1380 2170 4500 900 18200 14300 46 046
1991 6829 2388 870 2713 4500 900 18200 14300 29 029
1992 7997 2213 930 5860 300 900 18200 14300 31 031
1993 8277 1857 6866 300 900 18200 14300 76 076
Average 8122 211 2249 5436 1266 900 18184 769342 088
2241
7470
163592
1918 1918 1918 1918 1918 1918 1918
1919 1919 1919 1919 1919 1919 1919
1920 1920 1920 1920 1920 1920 1920
1921 1921 1921 1921 1921 1921 1921
1922 1922 1922 1922 1922 1922 1922
1923 1923 1923 1923 1923 1923 1923
1924 1924 1924 1924 1924 1924 1924
1925 1925 1925 1925 1925 1925 1925
1926 1926 1926 1926 1926 1926 1926
1927 1927 1927 1927 1927 1927 1927
1928 1928 1928 1928 1928 1928 1928
1929 1929 1929 1929 1929 1929 1929
1930 1930 1930 1930 1930 1930 1930
1931 1931 1931 1931 1931 1931 1931
1932 1932 1932 1932 1932 1932 1932
1933 1933 1933 1933 1933 1933 1933
1934 1934 1934 1934 1934 1934 1934
1935 1935 1935 1935 1935 1935 1935
1936 1936 1936 1936 1936 1936 1936
1937 1937 1937 1937 1937 1937 1937
1938 1938 1938 1938 1938 1938 1938
1939 1939 1939 1939 1939 1939 1939
1940 1940 1940 1940 1940 1940 1940
1941 1941 1941 1941 1941 1941 1941
1942 1942 1942 1942 1942 1942 1942
1943 1943 1943 1943 1943 1943 1943
1944 1944 1944 1944 1944 1944 1944
1945 1945 1945 1945 1945 1945 1945
1946 1946 1946 1946 1946 1946 1946
1947 1947 1947 1947 1947 1947 1947
1948 1948 1948 1948 1948 1948 1948
1949 1949 1949 1949 1949 1949 1949
1950 1950 1950 1950 1950 1950 1950
1951 1951 1951 1951 1951 1951 1951
1952 1952 1952 1952 1952 1952 1952
1953 1953 1953 1953 1953 1953 1953
1954 1954 1954 1954 1954 1954 1954
1955 1955 1955 1955 1955 1955 1955
1956 1956 1956 1956 1956 1956 1956
1957 1957 1957 1957 1957 1957 1957
1958 1958 1958 1958 1958 1958 1958
1959 1959 1959 1959 1959 1959 1959
1960 1960 1960 1960 1960 1960 1960
1961 1961 1961 1961 1961 1961 1961
1962 1962 1962 1962 1962 1962 1962
1963 1963 1963 1963 1963 1963 1963
1964 1964 1964 1964 1964 1964 1964
1965 1965 1965 1965 1965 1965 1965
1966 1966 1966 1966 1966 1966 1966
1967 1967 1967 1967 1967 1967 1967
1968 1968 1968 1968 1968 1968 1968
1969 1969 1969 1969 1969 1969 1969
1970 1970 1970 1970 1970 1970 1970
1971 1971 1971 1971 1971 1971 1971
1972 1972 1972 1972 1972 1972 1972
1973 1973 1973 1973 1973 1973 1973
1974 1974 1974 1974 1974 1974 1974
1975 1975 1975 1975 1975 1975 1975
1976 1976 1976 1976 1976 1976 1976
1977 1977 1977 1977 1977 1977 1977
1978 1978 1978 1978 1978 1978 1978
1979 1979 1979 1979 1979 1979 1979
1980 1980 1980 1980 1980 1980 1980
1981 1981 1981 1981 1981 1981 1981
1982 1982 1982 1982 1982 1982 1982
1983 1983 1983 1983 1983 1983 1983
1984 1984 1984 1984 1984 1984 1984
1985 1985 1985 1985 1985 1985 1985
1986 1986 1986 1986 1986 1986 1986
1987 1987 1987 1987 1987 1987 1987
1988 1988 1988 1988 1988 1988 1988
1989 1989 1989 1989 1989 1989 1989
1990 1990 1990 1990 1990 1990 1990
1991 1991 1991 1991 1991 1991 1991
1992 1992 1992 1992 1992 1992 1992
1993 1993 1993 1993 1993 1993 1993
Cachuma
Gibraltar
Groundwater
Recycled Water
State Water
Desalination
Page 12: PUBLIC WORKS DEPARTMENT WATER RESOURCES DIVISION …...mountain • Supply ranges from ... Water Supplies –State Water • A small, but useful part of our water supply • Both the
Gibraltar7400 AF
Cachuma9700 AF
Groundwater4500 AF
1980s
1980s Water Supply(AF of Capacity)

SantaBarbaraCAgovWater4

Historical Backgroundbull Gibraltar Pass Through Agreement

(1989)- Gibraltar Enlargement Deferred- City to ldquoPass Throughrdquo Gibraltar

Water to Cachuma

bull 1987 ndash 1991 Drought - 50 Cutbacks Sought - State Water Bond Approval- Advisory Vote for Desal

Gibraltar Reservoir1989

SantaBarbaraCAgovWater5

Historical BackgroundLong-Term Water Supply Program (1994)

- Added Recycled WaterDesal amp State Water

- Critical Period Planning- Demand Estimate per

General Plan Update (1989)- Water Conservation savings

of 1500 AFY planned

LTWSP Water Supply(AF of Capacity)

Cachuma8277 AF

Gibraltar6000 AF

Groundwater4150 AF

State Water3000 AF

Recycled800 AF

Desalination3125 AF

Chart2

Cachuma8277 AF
Gibraltar6000 AF
Groundwater4150 AF
State Water3000 AF
Recycled800 AF
Desalination3125 AF
Current
LTWSP Water Supply(AF of Capacity)
8577
6000
4150
800
3000
3125

ltwspCht

ampA
Page ampP
Recycled
Cachuma
Gib etc
SWP
GW
Desal
Shortage
Water Supply (AF)
Figure 1 Long-Term Water Supply ProgramUpdated to include surchararge fish releases and 1990 drought
900
82773366
6366
23566634
300
900
82773366
5865
2400
7576634
900
82773366
5560
2400
10626634
900
82773366
5483
2400
11396634
900
82773366
5931
27916634
300
900
82773366
5829
28936634
300
900
82773366
5494
1500
20286634
900
82773366
5294
1290
24386634
900
82773366
5406
1740
18766634
900
82773366
5643
2550
8296634
900
82773366
5548
2580
8946634
900
82773366
5425
1680
19176634
900
8231514135
5330
1710
2028485865
900
7305562347
4673246
1260
4061191653
900
7856777469
471278
1320
3410442531
900
82773366
5451
1140
24316634
900
82773366
5347
990
26856634
900
82773366
5528
1950
15446634
900
82773366
5544
2460
10186634
900
82773366
5797
2220
10056634
900
82773366
6110
26126634
300
900
82773366
5914
2640
4686634
900
82773366
5586
2460
9766634
900
82773366
6405
23176634
300
900
82773366
6250
24726634
300
900
82773366
6189
25336634
300
900
82773366
6084
26386634
300
900
82773366
5804
2700
5186634
900
82773366
5630
2640
7526634
900
82773366
5427
2250
13456634
900
82773366
5236
2010
17766634
900
7855786017
2020508
1950
4500
974
900
6759906438
3335608
2010
4500
694485562
900
547040079
500
2640
4500
3000
1189893227
900
7545802755
441926
2880
300
2155
900
82773366
5700
2700
300
323
900
82773366
5494
2490
300
739
900
82773366
5431
2070
300
1222
900
8233699836
5462
2700
904300164
900
7520604423
5411
2640
1728395577
900
787483284
5997
2700
72816716
900
82773366
5921
2640
4616634
900
82773366
5497
1890
16356634
900
82773366
4178353
1830
30143104
900
82773366
4147065
2340
25355984
900
82773366
5537
2820
6656634
900
82773366
5327
2640
10556634
900
8080887468
5309
2460
1450112532
900
8219636025
5639
2880
561363975
900
82773366
5896
28266634
300
900
82773366
5675
2670
6776634
900
82773366
6326
23966634
300
900
82773366
6036
2670
3166634
900
82773366
5733
2820
4696634
900
82773366
5443
2640
9396634
900
82773366
5747
2460
8156634
900
82773366
5785
2820
4176634
900
82773366
5742
2880
4006634
900
82773366
5515
2640
8676634
900
82773366
5279
990
27536634
900
82773366
6052
2040
9306634
900
82773366
6171
2550
3016634
900
82773366
6188
2460
3746634
900
82773366
6145
2490
3876634
900
82773366
5988
27346634
300
900
82773366
6955
17676634
300
900
82773366
6304
24186634
300
900
82773366
5851
28716634
300
900
82773366
5703
2430
8896634
900
82773366
5321
2070
16316634
900
82773366
5858
1290
18746634
900
7990356312
5641
1740
1928643688
900
6885154509
2170335
1380
4500
2364510491
900
682933383
271296
870
4500
238770617
900
7997267505
5860
930
300
2213
900
82773366
6866
18566634
300

LTWSP2002

LTWSP2002 (coincide)

Text of Accompanying Email

Chart1

Maximum Capacity (AF)
8277
5000
1000
3000
4150
800
300
3125

Pie Chart Data

Pie Chart Data

Cachuma8277 AF
Gibraltar6000 AF
Groundwater4150 AF
State Water3000 AF
Recycled800 AF
Desalination3125 AF
Current
Current Water Supply(AF of Capacity)
Gibraltar7400 AF
Cachuma9700 AF
Groundwater4500 AF
1980s
1980s Water Supply(AF of Capacity)

SantaBarbaraCAgovWater6

City of Santa Barbara Water Demand(Acre Feet of Production by Calendar Year - Potable + Recycled)

0

2500

5000

7500

10000

12500

15000

17500

20000

1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010

Figure ___

Total System Production (AF)

12 Months Ending

13374

February 28 2011

Post-DroughtPre-Drought Drought

SantaBarbaraCAgovWater7

Water Supplies - Cachumabull Primary City

Water Supply

bull Multi-Year SourceA few dry years notan issue

bull 8277 AFYCurrent Entitlement

bull 7863 AFYProjected Entitlement (2030)

SantaBarbaraCAgovWater8

Water Supplies - Cachuma

0

50000

100000

150000

200000

250000

1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011Water Year

Historical StorageVolumes1987-1993 Period

Recent History of Lake Cachuma Storage Levels (AF)With 1987-1993 Period Shown for Comparison

Figure ____

SantaBarbaraCAgovWater9

Water Supplies - Gibraltarbull ldquoPass Throughrdquo

implementationin progress

bull Modelingunder review

bull Conservative planning assumptions used pending modeling results

bull Sedimentation management study planned

SantaBarbaraCAgovWater10

Water Supplies ndash Mission Tunnelbull Infiltration from

percolating groundwateron both sides of themountain

bull Supply ranges from500 to 2375 AFY

bull Average contribution1125 AFY

SantaBarbaraCAgovWater11

Water Supplies ndash State Waterbull A small but useful part of our water

supply

bull Both the water amp the pipeline have value

bull Cityrsquos maximum delivery amount - 3300 AFY

bull Deliveries subject to availability

SantaBarbaraCAgovWater12

Water Supplies ndash State Waterbull Projections based on DWR

modeling using long-term databull No Delta or storage

improvementsbull Environmental limits remain in

effectbull Climate change effects assumed

SantaBarbaraCAgovWater13

Water Supplies - Groundwater

SantaBarbaraCAgovWater14

Water Supplies ndash Groundwaterbull Pumping occurs in

Downtown amp OuterState Street areas

bull 1300 AFY safe yieldbull Average City pumping

assumed at ~1100 AFYbull Maximum of 4150 AFY during drought

Ortega Groundwater Treatment Plant

SantaBarbaraCAgovWater15

Water Supplies ndash Recycled WaterRecycled Water Distribution System

SantaBarbaraCAgovWater16

Water Supplies ndash Recycled Waterbull Displaces use of potable

water amp extends water supplybull Current connected

demand 800 AFYbull 300 AFY potential demand amp capacity identifiedbull Target demand 1100 AFYbull Blending an economical solution for reducing mineral

contentbull Policy issues related to blending

SantaBarbaraCAgovWater17

Water Supplies ndash Recycled Water

SantaBarbaraCAgovWater18

Recycled Water Blending bull Filterability (turbidity) - solution identifiedbull Mineral Content (salts) separate issue -

- Blending $180AF added operating cost- MFRO $341AF added cost + $46 million

capitalbull Proposed Policy ldquoContingency Plan to

eliminate blending with goal to be ready to implement plan based on economic regulatory or water supply requirementsrdquo

SantaBarbaraCAgovWater19

Water Supplies - Desalination

bull Reliable butexpensive source

bull $177 million toreactivate if needed

bull Important to keepfor use in case ofextended drought

bull Proposed Planning Goal Avoid use until year six of Critical Drought Period

SantaBarbaraCAgovWater20

Demand Managementbull Declining demand

- Best Management Practices (CUWCC)- Conservation Program- 20 x 2020- Plumbing Code amp Appliance Standards

bull Projected development - 800 to 900 AFY bull Water Conservation Technical Evaluation

SantaBarbaraCAgovWater21

Demand Projections

12000

12500

13000

13500

14000

14500

15000

2010 2012 2014 2016 2018 2020 2022 2024 2026 2028 2030

Plan SB Demand (No Plumbing Code or Conservation Effects)Plumbing Code Effects OnlyPlumbing Code + Program B20 X 2020 Trend Line20 X 2020 Regulatory Limit

Water System Demand Projections (AFY)

SantaBarbaraCAgovWater22

Water Supply Planning Target

Projected Demand 14000Safety Margin (10) + 1400

Water Supply Target = 15400 AFY

SantaBarbaraCAgovWater23

Water Supply Planning Conceptsbull Planning for 6-Year Critical Drought Periodbull Water Supply Modeling - Using Historical

Data with Current Water Supply Sources and Projected Demands

bull Ongoing Conservation vs Short Term Planned Demand Reductions for Extraordinary Situations

SantaBarbaraCAgovWater24

Water Supply Performance

SantaBarbaraCAgovWater25

SantaBarbaraCAgovWater26

SantaBarbaraCAgovWater27

SantaBarbaraCAgovWater28

Key Policy Issuesbull Achieve 20 x 2020 through BMPs Additional

Conservation Measures amp Recycled Waterbull Planning for a 6-Year Duration Critical Drought

- Manage supplies to avoid use of Desal until year six- Water Banking Purchases- Planned Demand Reductions 10 to 15- Recycled Water Expansion

bull Recycled Water Blending bull Sedimentation Management

SantaBarbaraCAgovWater29

Next Stepsbull Finalize updated Long-Term Water

Supply Plan- April 11 Final Comments from Water

Commission- Environmental Review

bull Prepare Urban Water Management Plan Update per State Requirements

bull Target Adoption Date for LTWSP amp UWMP - June 14 2011

SantaBarbaraCAgovWater30

Discussion amp Feedback

SantaBarbaraCAgovWater31

SantaBarbaraCAgovWater32

SantaBarbaraCAgovWater33

SantaBarbaraCAgovWater34

SantaBarbaraCAgovWater35

SantaBarbaraCAgovWater36

Upper Santa Ynez River Operations Agreement(ldquoPass Through Agreementrdquo)

SantaBarbaraCAgovWater37

Context of 1989 Agreementbull City water supply shortage identified ndash Gibraltar

vulnerable to siltation

bull Solution Raise Gibraltar Dam 20rsquo to 40rsquo

bull Challenges by downstream and environmental interests

bull Cachuma enlargement under consideration

SantaBarbaraCAgovWater38

Parties to the Agreement

bull City of Santa Barbarabull Carpinteria Valley Water Districtbull Goleta Water Districtbull Montecito Water Districtbull Santa Ynez River Water Conservation Districtbull SYRWCD Improvement District No 1

Consent and Acknowledgement by US Bureau of Reclamation

SantaBarbaraCAgovWater39

Pass Through Summer no inflow

Current volume (reflects on-going siltation since 1988)

1988 Reservoir volume

Note different siltation levels

SantaBarbaraCAgovWater40

Smaller Reservoir Spills Sooner1988 Reservoir volume

Current Reservoir volume

SantaBarbaraCAgovWater41

Difference is Stored in Cachuma as Gibraltar WaterBase Reservoir

Actual Reservoir

SantaBarbaraCAgovWater42

  • Long Term Water Supply Plan Adaptive Management
  • Overview
  • Historical Background
  • Historical Background
  • Historical Background
  • Slide Number 6
  • Water Supplies - Cachuma
  • Water Supplies - Cachuma
  • Water Supplies - Gibraltar
  • Water Supplies ndash Mission Tunnel
  • Water Supplies ndash State Water
  • Water Supplies ndash State Water
  • Water Supplies - Groundwater
  • Water Supplies ndash Groundwater
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Recycled Water Blending
  • Water Supplies - Desalination
  • Demand Management
  • Demand Projections
  • Water Supply Planning Target
  • Water Supply Planning Concepts
  • Water Supply Performance
  • Slide Number 25
  • Slide Number 26
  • Slide Number 27
  • Key Policy Issues
  • Next Steps
  • Discussion amp Feedback
  • Slide Number 31
  • Slide Number 32
  • Slide Number 33
  • Slide Number 34
  • Slide Number 35
  • Slide Number 36
  • Context of 1989 Agreement
  • Parties to the Agreement
  • Pass Through Summer no inflow
  • Smaller Reservoir Spills Sooner
  • Difference is Stored in Cachuma as Gibraltar Water
  • Slide Number 42
Detailed Simple
Maximum Capacity () Maximum Capacity (AF) 1980s Current
Lake Cachuma 32 8277 Cachuma 9700 8577
Gibraltar Reservoir 19 5000 Gibraltar 7400 6000
Mission Tunnel 4 1000 Groundwater 4500 4150
State Water Project 12 3000 Recycled Water 800
Groundwater 16 4150 State Water 3000
Recycled Water 3 800 Desalination 3125
Montecito Transfer 1 300 Totals 21600 25652
Desalination 12 3125
100 25652
Lake Cachuma
Gibraltar Reservoir
Mission Tunnel
State Water Project
Groundwater
Recycled Water
Montecito Transfer
Desalination
In our review of the FMP EIREIS we had a small discussion on how to characterize our water supplies in particular State Water In that discussion I commented that the average State Water delivery did not apply to how we did our water supply planning a
The supply target in this analysis is 18200 AFY with a goal of having no shortage greater than 1820 (10) in any year The critical year is 1951 This supply target was developed for us by our Community Development Department for the LTWSP and include
The Cityrsquos supply strategy as modeled is to
use all surface water supply first with a minimum (300 AFY) amount of local groundwater
use available State Water to get us to the supply target
if enough State Water is not available meet the supply target with local groundwater up to 4500 AFY
if that is not enough turn on the desal plant with a goal of having no shortage greater than 1820 AFY in the critical year
The modeling results presented in the first spreadsheet page (LTWSP2002) and the chart shows that our supplies meet the overall production target and satisfy the goal of having a shortage less than 10 in the critical year
In this analysis State Water is an important element in meeting the annual target and the critical year shortage goal The average delivery of State Water is meaningless in this analysis Also with the Cityrsquos approach our average delivery of State Wat
Another important consideration is that the estimates of State Water deliveries based on history result in historical critical periods for the Santa Ynez River and the State Water Project not coinciding I think it is acceptable for one to do this analys
I am not sure where this leaves us with respect to what we put in the FMP EISEIR for our individual water supplies For the City of Santa Barbara input I can give John Gray the bottom line of the spreadsheet with our averages for the 76 year period T
One value of the Cityrsquos approach is that it gives some meaning to the shortages that would happen (or at least are modeled to happen) if the surcharge is not included or other changes to Cachuma Project yield are suggested Our goal again is a shortage
LONG TERM WATER SUPPLY PROGRAM SUPPLY SCENARIO
As estimated by the Santa Ynez River Hydrology Model using 3 ft surcharge and BO fish releases
State Water critical period is moved to coincide with Cachuma critical period
Water Conservation and GW recharge is left out of this version
Includes ground water recovery and 10 safety margin values in acre feet production is 18200 AFY
Filename=LTWSP2002xls SWP
Year Cachuma Desal SWP GibJun GW Recycled Total Shortage
1918 8277 2357 6366 300 900 18200 14300 80
1919 8277 2400 5865 758 900 18200 14300 80
1920 8277 2400 5560 1063 900 18200 14300 80
1921 8277 2400 5483 1140 900 18200 14300 80
1922 8277 2792 5931 300 900 18200 14300 94 094
1923 8277 2894 5829 300 900 18200 14300 99 099
1924 8277 1500 5494 2029 900 18200 14300 50 05
1925 8277 1290 5294 2439 900 18200 14300 43 043
1926 8277 1740 5406 1877 900 18200 14300 58 058
1927 8277 2550 5643 830 900 18200 14300 85 085
1928 8277 2580 5548 895 900 18200 14300 86 086
1929 8277 1680 5425 1918 900 18200 14300 56 056
1930 8232 2250 5330 1488 900 18200 14300 75 057
1931 7306 2010 4673 3311 900 18200 14300 67 042
1932 7857 1950 4713 2780 900 18200 14300 65 044
1933 8277 2010 5451 1562 900 18200 14300 67 038
1934 8277 2640 5347 1036 900 18200 14300 88 033
1935 8277 1950 5528 1545 900 18200 14300 65 065
1936 8277 2460 5544 1019 900 18200 14300 82 082
1937 8277 2220 5797 1006 900 18200 14300 74 074
1938 8277 2613 6110 300 900 18200 14300 94 094
1939 8277 2640 5914 469 900 18200 14300 88 088
1940 8277 2460 5586 977 900 18200 14300 82 082
1941 8277 2318 6405 300 900 18200 14300 97 097
1942 8277 2473 6250 300 900 18200 14300 100 1
1943 8277 2534 6189 300 900 18200 14300 89 089
1944 8277 2639 6084 300 900 18200 14300 92 092
1945 8277 2700 5804 519 900 18200 14300 90 09
1946 8277 2640 5630 753 900 18200 14300 88 088
1947 8277 1710 5427 1886 900 18200 14300 57 075
1948 8277 1260 5236 2527 900 18200 14300 42 067
1949 7856 1604 1320 2021 4500 900 18200 -0 14300 44 065
1950 6760 1564 1140 3336 4500 900 18200 0 14300 38 067
1951 5470 3000 990 500 4500 900 15360 2840 01560380894 14300 33 088
1952 7546 2155 2880 4419 300 900 18200 14300 96 096
1953 8277 323 2700 5700 300 900 18200 14300 90 09
1954 8277 739 2490 5494 300 900 18200 14300 83 083
1955 8277 1222 2070 5431 300 900 18200 14300 69 069
1956 8234 2700 5462 904 900 18200 14300 90 09
1957 7521 2640 5411 1728 900 18200 14300 88 088
1958 7875 2700 5997 728 900 18200 14300 90 09
1959 8277 2640 5921 462 900 18200 14300 88 088
1960 8277 1890 5497 1636 900 18200 14300 63 063
1961 8277 1830 4178 3014 900 18200 14300 61 061
1962 8277 2340 4147 2536 900 18200 14300 78 078
1963 8277 2820 5537 666 900 18200 14300 94 094
1964 8277 2640 5327 1056 900 18200 14300 88 088
1965 8081 2460 5309 1450 900 18200 14300 82 082
1966 8220 2880 5639 561 900 18200 14300 96 096
1967 8277 2827 5896 300 900 18200 14300 96 096
1968 8277 2670 5675 678 900 18200 14300 89 089
1969 8277 2397 6326 300 900 18200 14300 93 093
1970 8277 2670 6036 317 900 18200 14300 89 089
1971 8277 2820 5733 470 900 18200 14300 94 094
1972 8277 2640 5443 940 900 18200 14300 88 088
1973 8277 2460 5747 816 900 18200 14300 82 082
1974 8277 2820 5785 418 900 18200 14300 94 094
1975 8277 2880 5742 401 900 18200 14300 96 096
1976 8277 2640 5515 868 900 18200 14300 88 088
1977 8277 990 5279 2754 900 18200 14300 33 033
1978 8277 2040 6052 931 900 18200 14300 68 068
1979 8277 2550 6171 302 900 18200 14300 85 085
1980 8277 2460 6188 375 900 18200 14300 82 082
1981 8277 2490 6145 388 900 18200 14300 83 083
1982 8277 2735 5988 300 900 18200 14300 94 094
1983 8277 1768 6955 300 900 18200 14300 100 1
1984 8277 2419 6304 300 900 18200 14300 100 1
1985 8277 2872 5851 300 900 18200 14300 96 096
1986 8277 2430 5703 890 900 18200 14300 81 081
1987 8277 2070 5321 1632 900 18200 14300 69 069
1988 8277 1290 5858 1875 900 18200 14300 43 043
1989 7990 1740 5641 1929 900 18200 14300 58 058
1990 6885 2365 1380 2170 4500 900 18200 14300 46 046
1991 6829 2388 870 2713 4500 900 18200 14300 29 029
1992 7997 2213 930 5860 300 900 18200 14300 31 031
1993 8277 1857 6866 300 900 18200 14300 76 076
Average 8122 231 2249 5436 1224 900 18163 769342 088
2241
7470
163592
LONG TERM WATER SUPPLY PROGRAM SUPPLY SCENARIO
As estimated by the Santa Ynez River Hydrology Model using 3 ft surcharge and BO fish releases
State Water deliveries are based on delivery estimates provided by CCWA in 2001
Water Conservation and GW recharge is left out of this version
Includes ground water recovery and 10 safety margin values in acre feet production is 18200 AFY
Filename=LTWSP2002xls SWP
Year Cachuma Desal SWP GibJun GW Recycled Total Shortage
1918 8277 2357 6366 300 900 18200 14300 80
1919 8277 2400 5865 758 900 18200 14300 80
1920 8277 2400 5560 1063 900 18200 14300 80
1921 8277 2400 5483 1140 900 18200 14300 80
1922 8277 2792 5931 300 900 18200 14300 94 094
1923 8277 2894 5829 300 900 18200 14300 99 099
1924 8277 1500 5494 2029 900 18200 14300 50 05
1925 8277 1290 5294 2439 900 18200 14300 43 043
1926 8277 1740 5406 1877 900 18200 14300 58 058
1927 8277 2550 5643 830 900 18200 14300 85 085
1928 8277 2580 5548 895 900 18200 14300 86 086
1929 8277 1680 5425 1918 900 18200 14300 56 056
1930 8232 1710 5330 2028 900 18200 14300 57 057
1931 7306 1260 4673 4061 900 18200 14300 42 042
1932 7857 1320 4713 3410 900 18200 14300 44 044
1933 8277 1140 5451 2432 900 18200 14300 38 038
1934 8277 990 5347 2686 900 18200 14300 33 033
1935 8277 1950 5528 1545 900 18200 14300 65 065
1936 8277 2460 5544 1019 900 18200 14300 82 082
1937 8277 2220 5797 1006 900 18200 14300 74 074
1938 8277 2613 6110 300 900 18200 14300 94 094
1939 8277 2640 5914 469 900 18200 14300 88 088
1940 8277 2460 5586 977 900 18200 14300 82 082
1941 8277 2318 6405 300 900 18200 14300 97 097
1942 8277 2473 6250 300 900 18200 14300 100 1
1943 8277 2534 6189 300 900 18200 14300 89 089
1944 8277 2639 6084 300 900 18200 14300 92 092
1945 8277 2700 5804 519 900 18200 14300 90 09
1946 8277 2640 5630 753 900 18200 14300 88 088
1947 8277 2250 5427 1346 900 18200 14300 75 075
1948 8277 2010 5236 1777 900 18200 14300 67 067
1949 7856 974 1950 2021 4500 900 18200 14300 65 065
1950 6760 694 2010 3336 4500 900 18200 14300 67 067
1951 5470 3000 2640 500 4500 900 17010 1190 00653787487 14300 88 088
1952 7546 2155 2880 4419 300 900 18200 14300 96 096
1953 8277 323 2700 5700 300 900 18200 14300 90 09
1954 8277 739 2490 5494 300 900 18200 14300 83 083
1955 8277 1222 2070 5431 300 900 18200 14300 69 069
1956 8234 2700 5462 904 900 18200 14300 90 09
1957 7521 2640 5411 1728 900 18200 14300 88 088
1958 7875 2700 5997 728 900 18200 14300 90 09
1959 8277 2640 5921 462 900 18200 14300 88 088
1960 8277 1890 5497 1636 900 18200 14300 63 063
1961 8277 1830 4178 3014 900 18200 14300 61 061
1962 8277 2340 4147 2536 900 18200 14300 78 078
1963 8277 2820 5537 666 900 18200 14300 94 094
1964 8277 2640 5327 1056 900 18200 14300 88 088
1965 8081 2460 5309 1450 900 18200 14300 82 082
1966 8220 2880 5639 561 900 18200 14300 96 096
1967 8277 2827 5896 300 900 18200 14300 96 096
1968 8277 2670 5675 678 900 18200 14300 89 089
1969 8277 2397 6326 300 900 18200 14300 93 093
1970 8277 2670 6036 317 900 18200 14300 89 089
1971 8277 2820 5733 470 900 18200 14300 94 094
1972 8277 2640 5443 940 900 18200 14300 88 088
1973 8277 2460 5747 816 900 18200 14300 82 082
1974 8277 2820 5785 418 900 18200 14300 94 094
1975 8277 2880 5742 401 900 18200 14300 96 096
1976 8277 2640 5515 868 900 18200 14300 88 088
1977 8277 990 5279 2754 900 18200 14300 33 033
1978 8277 2040 6052 931 900 18200 14300 68 068
1979 8277 2550 6171 302 900 18200 14300 85 085
1980 8277 2460 6188 375 900 18200 14300 82 082
1981 8277 2490 6145 388 900 18200 14300 83 083
1982 8277 2735 5988 300 900 18200 14300 94 094
1983 8277 1768 6955 300 900 18200 14300 100 1
1984 8277 2419 6304 300 900 18200 14300 100 1
1985 8277 2872 5851 300 900 18200 14300 96 096
1986 8277 2430 5703 890 900 18200 14300 81 081
1987 8277 2070 5321 1632 900 18200 14300 69 069
1988 8277 1290 5858 1875 900 18200 14300 43 043
1989 7990 1740 5641 1929 900 18200 14300 58 058
1990 6885 2365 1380 2170 4500 900 18200 14300 46 046
1991 6829 2388 870 2713 4500 900 18200 14300 29 029
1992 7997 2213 930 5860 300 900 18200 14300 31 031
1993 8277 1857 6866 300 900 18200 14300 76 076
Average 8122 211 2249 5436 1266 900 18184 769342 088
2241
7470
163592
1918 1918 1918 1918 1918 1918 1918
1919 1919 1919 1919 1919 1919 1919
1920 1920 1920 1920 1920 1920 1920
1921 1921 1921 1921 1921 1921 1921
1922 1922 1922 1922 1922 1922 1922
1923 1923 1923 1923 1923 1923 1923
1924 1924 1924 1924 1924 1924 1924
1925 1925 1925 1925 1925 1925 1925
1926 1926 1926 1926 1926 1926 1926
1927 1927 1927 1927 1927 1927 1927
1928 1928 1928 1928 1928 1928 1928
1929 1929 1929 1929 1929 1929 1929
1930 1930 1930 1930 1930 1930 1930
1931 1931 1931 1931 1931 1931 1931
1932 1932 1932 1932 1932 1932 1932
1933 1933 1933 1933 1933 1933 1933
1934 1934 1934 1934 1934 1934 1934
1935 1935 1935 1935 1935 1935 1935
1936 1936 1936 1936 1936 1936 1936
1937 1937 1937 1937 1937 1937 1937
1938 1938 1938 1938 1938 1938 1938
1939 1939 1939 1939 1939 1939 1939
1940 1940 1940 1940 1940 1940 1940
1941 1941 1941 1941 1941 1941 1941
1942 1942 1942 1942 1942 1942 1942
1943 1943 1943 1943 1943 1943 1943
1944 1944 1944 1944 1944 1944 1944
1945 1945 1945 1945 1945 1945 1945
1946 1946 1946 1946 1946 1946 1946
1947 1947 1947 1947 1947 1947 1947
1948 1948 1948 1948 1948 1948 1948
1949 1949 1949 1949 1949 1949 1949
1950 1950 1950 1950 1950 1950 1950
1951 1951 1951 1951 1951 1951 1951
1952 1952 1952 1952 1952 1952 1952
1953 1953 1953 1953 1953 1953 1953
1954 1954 1954 1954 1954 1954 1954
1955 1955 1955 1955 1955 1955 1955
1956 1956 1956 1956 1956 1956 1956
1957 1957 1957 1957 1957 1957 1957
1958 1958 1958 1958 1958 1958 1958
1959 1959 1959 1959 1959 1959 1959
1960 1960 1960 1960 1960 1960 1960
1961 1961 1961 1961 1961 1961 1961
1962 1962 1962 1962 1962 1962 1962
1963 1963 1963 1963 1963 1963 1963
1964 1964 1964 1964 1964 1964 1964
1965 1965 1965 1965 1965 1965 1965
1966 1966 1966 1966 1966 1966 1966
1967 1967 1967 1967 1967 1967 1967
1968 1968 1968 1968 1968 1968 1968
1969 1969 1969 1969 1969 1969 1969
1970 1970 1970 1970 1970 1970 1970
1971 1971 1971 1971 1971 1971 1971
1972 1972 1972 1972 1972 1972 1972
1973 1973 1973 1973 1973 1973 1973
1974 1974 1974 1974 1974 1974 1974
1975 1975 1975 1975 1975 1975 1975
1976 1976 1976 1976 1976 1976 1976
1977 1977 1977 1977 1977 1977 1977
1978 1978 1978 1978 1978 1978 1978
1979 1979 1979 1979 1979 1979 1979
1980 1980 1980 1980 1980 1980 1980
1981 1981 1981 1981 1981 1981 1981
1982 1982 1982 1982 1982 1982 1982
1983 1983 1983 1983 1983 1983 1983
1984 1984 1984 1984 1984 1984 1984
1985 1985 1985 1985 1985 1985 1985
1986 1986 1986 1986 1986 1986 1986
1987 1987 1987 1987 1987 1987 1987
1988 1988 1988 1988 1988 1988 1988
1989 1989 1989 1989 1989 1989 1989
1990 1990 1990 1990 1990 1990 1990
1991 1991 1991 1991 1991 1991 1991
1992 1992 1992 1992 1992 1992 1992
1993 1993 1993 1993 1993 1993 1993
Cachuma
Gibraltar
Groundwater
Recycled Water
State Water
Desalination
Page 13: PUBLIC WORKS DEPARTMENT WATER RESOURCES DIVISION …...mountain • Supply ranges from ... Water Supplies –State Water • A small, but useful part of our water supply • Both the

SantaBarbaraCAgovWater4

Historical Backgroundbull Gibraltar Pass Through Agreement

(1989)- Gibraltar Enlargement Deferred- City to ldquoPass Throughrdquo Gibraltar

Water to Cachuma

bull 1987 ndash 1991 Drought - 50 Cutbacks Sought - State Water Bond Approval- Advisory Vote for Desal

Gibraltar Reservoir1989

SantaBarbaraCAgovWater5

Historical BackgroundLong-Term Water Supply Program (1994)

- Added Recycled WaterDesal amp State Water

- Critical Period Planning- Demand Estimate per

General Plan Update (1989)- Water Conservation savings

of 1500 AFY planned

LTWSP Water Supply(AF of Capacity)

Cachuma8277 AF

Gibraltar6000 AF

Groundwater4150 AF

State Water3000 AF

Recycled800 AF

Desalination3125 AF

Chart2

Cachuma8277 AF
Gibraltar6000 AF
Groundwater4150 AF
State Water3000 AF
Recycled800 AF
Desalination3125 AF
Current
LTWSP Water Supply(AF of Capacity)
8577
6000
4150
800
3000
3125

ltwspCht

ampA
Page ampP
Recycled
Cachuma
Gib etc
SWP
GW
Desal
Shortage
Water Supply (AF)
Figure 1 Long-Term Water Supply ProgramUpdated to include surchararge fish releases and 1990 drought
900
82773366
6366
23566634
300
900
82773366
5865
2400
7576634
900
82773366
5560
2400
10626634
900
82773366
5483
2400
11396634
900
82773366
5931
27916634
300
900
82773366
5829
28936634
300
900
82773366
5494
1500
20286634
900
82773366
5294
1290
24386634
900
82773366
5406
1740
18766634
900
82773366
5643
2550
8296634
900
82773366
5548
2580
8946634
900
82773366
5425
1680
19176634
900
8231514135
5330
1710
2028485865
900
7305562347
4673246
1260
4061191653
900
7856777469
471278
1320
3410442531
900
82773366
5451
1140
24316634
900
82773366
5347
990
26856634
900
82773366
5528
1950
15446634
900
82773366
5544
2460
10186634
900
82773366
5797
2220
10056634
900
82773366
6110
26126634
300
900
82773366
5914
2640
4686634
900
82773366
5586
2460
9766634
900
82773366
6405
23176634
300
900
82773366
6250
24726634
300
900
82773366
6189
25336634
300
900
82773366
6084
26386634
300
900
82773366
5804
2700
5186634
900
82773366
5630
2640
7526634
900
82773366
5427
2250
13456634
900
82773366
5236
2010
17766634
900
7855786017
2020508
1950
4500
974
900
6759906438
3335608
2010
4500
694485562
900
547040079
500
2640
4500
3000
1189893227
900
7545802755
441926
2880
300
2155
900
82773366
5700
2700
300
323
900
82773366
5494
2490
300
739
900
82773366
5431
2070
300
1222
900
8233699836
5462
2700
904300164
900
7520604423
5411
2640
1728395577
900
787483284
5997
2700
72816716
900
82773366
5921
2640
4616634
900
82773366
5497
1890
16356634
900
82773366
4178353
1830
30143104
900
82773366
4147065
2340
25355984
900
82773366
5537
2820
6656634
900
82773366
5327
2640
10556634
900
8080887468
5309
2460
1450112532
900
8219636025
5639
2880
561363975
900
82773366
5896
28266634
300
900
82773366
5675
2670
6776634
900
82773366
6326
23966634
300
900
82773366
6036
2670
3166634
900
82773366
5733
2820
4696634
900
82773366
5443
2640
9396634
900
82773366
5747
2460
8156634
900
82773366
5785
2820
4176634
900
82773366
5742
2880
4006634
900
82773366
5515
2640
8676634
900
82773366
5279
990
27536634
900
82773366
6052
2040
9306634
900
82773366
6171
2550
3016634
900
82773366
6188
2460
3746634
900
82773366
6145
2490
3876634
900
82773366
5988
27346634
300
900
82773366
6955
17676634
300
900
82773366
6304
24186634
300
900
82773366
5851
28716634
300
900
82773366
5703
2430
8896634
900
82773366
5321
2070
16316634
900
82773366
5858
1290
18746634
900
7990356312
5641
1740
1928643688
900
6885154509
2170335
1380
4500
2364510491
900
682933383
271296
870
4500
238770617
900
7997267505
5860
930
300
2213
900
82773366
6866
18566634
300

LTWSP2002

LTWSP2002 (coincide)

Text of Accompanying Email

Chart1

Maximum Capacity (AF)
8277
5000
1000
3000
4150
800
300
3125

Pie Chart Data

Pie Chart Data

Cachuma8277 AF
Gibraltar6000 AF
Groundwater4150 AF
State Water3000 AF
Recycled800 AF
Desalination3125 AF
Current
Current Water Supply(AF of Capacity)
Gibraltar7400 AF
Cachuma9700 AF
Groundwater4500 AF
1980s
1980s Water Supply(AF of Capacity)

SantaBarbaraCAgovWater6

City of Santa Barbara Water Demand(Acre Feet of Production by Calendar Year - Potable + Recycled)

0

2500

5000

7500

10000

12500

15000

17500

20000

1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010

Figure ___

Total System Production (AF)

12 Months Ending

13374

February 28 2011

Post-DroughtPre-Drought Drought

SantaBarbaraCAgovWater7

Water Supplies - Cachumabull Primary City

Water Supply

bull Multi-Year SourceA few dry years notan issue

bull 8277 AFYCurrent Entitlement

bull 7863 AFYProjected Entitlement (2030)

SantaBarbaraCAgovWater8

Water Supplies - Cachuma

0

50000

100000

150000

200000

250000

1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011Water Year

Historical StorageVolumes1987-1993 Period

Recent History of Lake Cachuma Storage Levels (AF)With 1987-1993 Period Shown for Comparison

Figure ____

SantaBarbaraCAgovWater9

Water Supplies - Gibraltarbull ldquoPass Throughrdquo

implementationin progress

bull Modelingunder review

bull Conservative planning assumptions used pending modeling results

bull Sedimentation management study planned

SantaBarbaraCAgovWater10

Water Supplies ndash Mission Tunnelbull Infiltration from

percolating groundwateron both sides of themountain

bull Supply ranges from500 to 2375 AFY

bull Average contribution1125 AFY

SantaBarbaraCAgovWater11

Water Supplies ndash State Waterbull A small but useful part of our water

supply

bull Both the water amp the pipeline have value

bull Cityrsquos maximum delivery amount - 3300 AFY

bull Deliveries subject to availability

SantaBarbaraCAgovWater12

Water Supplies ndash State Waterbull Projections based on DWR

modeling using long-term databull No Delta or storage

improvementsbull Environmental limits remain in

effectbull Climate change effects assumed

SantaBarbaraCAgovWater13

Water Supplies - Groundwater

SantaBarbaraCAgovWater14

Water Supplies ndash Groundwaterbull Pumping occurs in

Downtown amp OuterState Street areas

bull 1300 AFY safe yieldbull Average City pumping

assumed at ~1100 AFYbull Maximum of 4150 AFY during drought

Ortega Groundwater Treatment Plant

SantaBarbaraCAgovWater15

Water Supplies ndash Recycled WaterRecycled Water Distribution System

SantaBarbaraCAgovWater16

Water Supplies ndash Recycled Waterbull Displaces use of potable

water amp extends water supplybull Current connected

demand 800 AFYbull 300 AFY potential demand amp capacity identifiedbull Target demand 1100 AFYbull Blending an economical solution for reducing mineral

contentbull Policy issues related to blending

SantaBarbaraCAgovWater17

Water Supplies ndash Recycled Water

SantaBarbaraCAgovWater18

Recycled Water Blending bull Filterability (turbidity) - solution identifiedbull Mineral Content (salts) separate issue -

- Blending $180AF added operating cost- MFRO $341AF added cost + $46 million

capitalbull Proposed Policy ldquoContingency Plan to

eliminate blending with goal to be ready to implement plan based on economic regulatory or water supply requirementsrdquo

SantaBarbaraCAgovWater19

Water Supplies - Desalination

bull Reliable butexpensive source

bull $177 million toreactivate if needed

bull Important to keepfor use in case ofextended drought

bull Proposed Planning Goal Avoid use until year six of Critical Drought Period

SantaBarbaraCAgovWater20

Demand Managementbull Declining demand

- Best Management Practices (CUWCC)- Conservation Program- 20 x 2020- Plumbing Code amp Appliance Standards

bull Projected development - 800 to 900 AFY bull Water Conservation Technical Evaluation

SantaBarbaraCAgovWater21

Demand Projections

12000

12500

13000

13500

14000

14500

15000

2010 2012 2014 2016 2018 2020 2022 2024 2026 2028 2030

Plan SB Demand (No Plumbing Code or Conservation Effects)Plumbing Code Effects OnlyPlumbing Code + Program B20 X 2020 Trend Line20 X 2020 Regulatory Limit

Water System Demand Projections (AFY)

SantaBarbaraCAgovWater22

Water Supply Planning Target

Projected Demand 14000Safety Margin (10) + 1400

Water Supply Target = 15400 AFY

SantaBarbaraCAgovWater23

Water Supply Planning Conceptsbull Planning for 6-Year Critical Drought Periodbull Water Supply Modeling - Using Historical

Data with Current Water Supply Sources and Projected Demands

bull Ongoing Conservation vs Short Term Planned Demand Reductions for Extraordinary Situations

SantaBarbaraCAgovWater24

Water Supply Performance

SantaBarbaraCAgovWater25

SantaBarbaraCAgovWater26

SantaBarbaraCAgovWater27

SantaBarbaraCAgovWater28

Key Policy Issuesbull Achieve 20 x 2020 through BMPs Additional

Conservation Measures amp Recycled Waterbull Planning for a 6-Year Duration Critical Drought

- Manage supplies to avoid use of Desal until year six- Water Banking Purchases- Planned Demand Reductions 10 to 15- Recycled Water Expansion

bull Recycled Water Blending bull Sedimentation Management

SantaBarbaraCAgovWater29

Next Stepsbull Finalize updated Long-Term Water

Supply Plan- April 11 Final Comments from Water

Commission- Environmental Review

bull Prepare Urban Water Management Plan Update per State Requirements

bull Target Adoption Date for LTWSP amp UWMP - June 14 2011

SantaBarbaraCAgovWater30

Discussion amp Feedback

SantaBarbaraCAgovWater31

SantaBarbaraCAgovWater32

SantaBarbaraCAgovWater33

SantaBarbaraCAgovWater34

SantaBarbaraCAgovWater35

SantaBarbaraCAgovWater36

Upper Santa Ynez River Operations Agreement(ldquoPass Through Agreementrdquo)

SantaBarbaraCAgovWater37

Context of 1989 Agreementbull City water supply shortage identified ndash Gibraltar

vulnerable to siltation

bull Solution Raise Gibraltar Dam 20rsquo to 40rsquo

bull Challenges by downstream and environmental interests

bull Cachuma enlargement under consideration

SantaBarbaraCAgovWater38

Parties to the Agreement

bull City of Santa Barbarabull Carpinteria Valley Water Districtbull Goleta Water Districtbull Montecito Water Districtbull Santa Ynez River Water Conservation Districtbull SYRWCD Improvement District No 1

Consent and Acknowledgement by US Bureau of Reclamation

SantaBarbaraCAgovWater39

Pass Through Summer no inflow

Current volume (reflects on-going siltation since 1988)

1988 Reservoir volume

Note different siltation levels

SantaBarbaraCAgovWater40

Smaller Reservoir Spills Sooner1988 Reservoir volume

Current Reservoir volume

SantaBarbaraCAgovWater41

Difference is Stored in Cachuma as Gibraltar WaterBase Reservoir

Actual Reservoir

SantaBarbaraCAgovWater42

  • Long Term Water Supply Plan Adaptive Management
  • Overview
  • Historical Background
  • Historical Background
  • Historical Background
  • Slide Number 6
  • Water Supplies - Cachuma
  • Water Supplies - Cachuma
  • Water Supplies - Gibraltar
  • Water Supplies ndash Mission Tunnel
  • Water Supplies ndash State Water
  • Water Supplies ndash State Water
  • Water Supplies - Groundwater
  • Water Supplies ndash Groundwater
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Recycled Water Blending
  • Water Supplies - Desalination
  • Demand Management
  • Demand Projections
  • Water Supply Planning Target
  • Water Supply Planning Concepts
  • Water Supply Performance
  • Slide Number 25
  • Slide Number 26
  • Slide Number 27
  • Key Policy Issues
  • Next Steps
  • Discussion amp Feedback
  • Slide Number 31
  • Slide Number 32
  • Slide Number 33
  • Slide Number 34
  • Slide Number 35
  • Slide Number 36
  • Context of 1989 Agreement
  • Parties to the Agreement
  • Pass Through Summer no inflow
  • Smaller Reservoir Spills Sooner
  • Difference is Stored in Cachuma as Gibraltar Water
  • Slide Number 42
Detailed Simple
Maximum Capacity () Maximum Capacity (AF) 1980s Current
Lake Cachuma 32 8277 Cachuma 9700 8577
Gibraltar Reservoir 19 5000 Gibraltar 7400 6000
Mission Tunnel 4 1000 Groundwater 4500 4150
State Water Project 12 3000 Recycled Water 800
Groundwater 16 4150 State Water 3000
Recycled Water 3 800 Desalination 3125
Montecito Transfer 1 300 Totals 21600 25652
Desalination 12 3125
100 25652
Lake Cachuma
Gibraltar Reservoir
Mission Tunnel
State Water Project
Groundwater
Recycled Water
Montecito Transfer
Desalination
In our review of the FMP EIREIS we had a small discussion on how to characterize our water supplies in particular State Water In that discussion I commented that the average State Water delivery did not apply to how we did our water supply planning a
The supply target in this analysis is 18200 AFY with a goal of having no shortage greater than 1820 (10) in any year The critical year is 1951 This supply target was developed for us by our Community Development Department for the LTWSP and include
The Cityrsquos supply strategy as modeled is to
use all surface water supply first with a minimum (300 AFY) amount of local groundwater
use available State Water to get us to the supply target
if enough State Water is not available meet the supply target with local groundwater up to 4500 AFY
if that is not enough turn on the desal plant with a goal of having no shortage greater than 1820 AFY in the critical year
The modeling results presented in the first spreadsheet page (LTWSP2002) and the chart shows that our supplies meet the overall production target and satisfy the goal of having a shortage less than 10 in the critical year
In this analysis State Water is an important element in meeting the annual target and the critical year shortage goal The average delivery of State Water is meaningless in this analysis Also with the Cityrsquos approach our average delivery of State Wat
Another important consideration is that the estimates of State Water deliveries based on history result in historical critical periods for the Santa Ynez River and the State Water Project not coinciding I think it is acceptable for one to do this analys
I am not sure where this leaves us with respect to what we put in the FMP EISEIR for our individual water supplies For the City of Santa Barbara input I can give John Gray the bottom line of the spreadsheet with our averages for the 76 year period T
One value of the Cityrsquos approach is that it gives some meaning to the shortages that would happen (or at least are modeled to happen) if the surcharge is not included or other changes to Cachuma Project yield are suggested Our goal again is a shortage
LONG TERM WATER SUPPLY PROGRAM SUPPLY SCENARIO
As estimated by the Santa Ynez River Hydrology Model using 3 ft surcharge and BO fish releases
State Water critical period is moved to coincide with Cachuma critical period
Water Conservation and GW recharge is left out of this version
Includes ground water recovery and 10 safety margin values in acre feet production is 18200 AFY
Filename=LTWSP2002xls SWP
Year Cachuma Desal SWP GibJun GW Recycled Total Shortage
1918 8277 2357 6366 300 900 18200 14300 80
1919 8277 2400 5865 758 900 18200 14300 80
1920 8277 2400 5560 1063 900 18200 14300 80
1921 8277 2400 5483 1140 900 18200 14300 80
1922 8277 2792 5931 300 900 18200 14300 94 094
1923 8277 2894 5829 300 900 18200 14300 99 099
1924 8277 1500 5494 2029 900 18200 14300 50 05
1925 8277 1290 5294 2439 900 18200 14300 43 043
1926 8277 1740 5406 1877 900 18200 14300 58 058
1927 8277 2550 5643 830 900 18200 14300 85 085
1928 8277 2580 5548 895 900 18200 14300 86 086
1929 8277 1680 5425 1918 900 18200 14300 56 056
1930 8232 2250 5330 1488 900 18200 14300 75 057
1931 7306 2010 4673 3311 900 18200 14300 67 042
1932 7857 1950 4713 2780 900 18200 14300 65 044
1933 8277 2010 5451 1562 900 18200 14300 67 038
1934 8277 2640 5347 1036 900 18200 14300 88 033
1935 8277 1950 5528 1545 900 18200 14300 65 065
1936 8277 2460 5544 1019 900 18200 14300 82 082
1937 8277 2220 5797 1006 900 18200 14300 74 074
1938 8277 2613 6110 300 900 18200 14300 94 094
1939 8277 2640 5914 469 900 18200 14300 88 088
1940 8277 2460 5586 977 900 18200 14300 82 082
1941 8277 2318 6405 300 900 18200 14300 97 097
1942 8277 2473 6250 300 900 18200 14300 100 1
1943 8277 2534 6189 300 900 18200 14300 89 089
1944 8277 2639 6084 300 900 18200 14300 92 092
1945 8277 2700 5804 519 900 18200 14300 90 09
1946 8277 2640 5630 753 900 18200 14300 88 088
1947 8277 1710 5427 1886 900 18200 14300 57 075
1948 8277 1260 5236 2527 900 18200 14300 42 067
1949 7856 1604 1320 2021 4500 900 18200 -0 14300 44 065
1950 6760 1564 1140 3336 4500 900 18200 0 14300 38 067
1951 5470 3000 990 500 4500 900 15360 2840 01560380894 14300 33 088
1952 7546 2155 2880 4419 300 900 18200 14300 96 096
1953 8277 323 2700 5700 300 900 18200 14300 90 09
1954 8277 739 2490 5494 300 900 18200 14300 83 083
1955 8277 1222 2070 5431 300 900 18200 14300 69 069
1956 8234 2700 5462 904 900 18200 14300 90 09
1957 7521 2640 5411 1728 900 18200 14300 88 088
1958 7875 2700 5997 728 900 18200 14300 90 09
1959 8277 2640 5921 462 900 18200 14300 88 088
1960 8277 1890 5497 1636 900 18200 14300 63 063
1961 8277 1830 4178 3014 900 18200 14300 61 061
1962 8277 2340 4147 2536 900 18200 14300 78 078
1963 8277 2820 5537 666 900 18200 14300 94 094
1964 8277 2640 5327 1056 900 18200 14300 88 088
1965 8081 2460 5309 1450 900 18200 14300 82 082
1966 8220 2880 5639 561 900 18200 14300 96 096
1967 8277 2827 5896 300 900 18200 14300 96 096
1968 8277 2670 5675 678 900 18200 14300 89 089
1969 8277 2397 6326 300 900 18200 14300 93 093
1970 8277 2670 6036 317 900 18200 14300 89 089
1971 8277 2820 5733 470 900 18200 14300 94 094
1972 8277 2640 5443 940 900 18200 14300 88 088
1973 8277 2460 5747 816 900 18200 14300 82 082
1974 8277 2820 5785 418 900 18200 14300 94 094
1975 8277 2880 5742 401 900 18200 14300 96 096
1976 8277 2640 5515 868 900 18200 14300 88 088
1977 8277 990 5279 2754 900 18200 14300 33 033
1978 8277 2040 6052 931 900 18200 14300 68 068
1979 8277 2550 6171 302 900 18200 14300 85 085
1980 8277 2460 6188 375 900 18200 14300 82 082
1981 8277 2490 6145 388 900 18200 14300 83 083
1982 8277 2735 5988 300 900 18200 14300 94 094
1983 8277 1768 6955 300 900 18200 14300 100 1
1984 8277 2419 6304 300 900 18200 14300 100 1
1985 8277 2872 5851 300 900 18200 14300 96 096
1986 8277 2430 5703 890 900 18200 14300 81 081
1987 8277 2070 5321 1632 900 18200 14300 69 069
1988 8277 1290 5858 1875 900 18200 14300 43 043
1989 7990 1740 5641 1929 900 18200 14300 58 058
1990 6885 2365 1380 2170 4500 900 18200 14300 46 046
1991 6829 2388 870 2713 4500 900 18200 14300 29 029
1992 7997 2213 930 5860 300 900 18200 14300 31 031
1993 8277 1857 6866 300 900 18200 14300 76 076
Average 8122 231 2249 5436 1224 900 18163 769342 088
2241
7470
163592
LONG TERM WATER SUPPLY PROGRAM SUPPLY SCENARIO
As estimated by the Santa Ynez River Hydrology Model using 3 ft surcharge and BO fish releases
State Water deliveries are based on delivery estimates provided by CCWA in 2001
Water Conservation and GW recharge is left out of this version
Includes ground water recovery and 10 safety margin values in acre feet production is 18200 AFY
Filename=LTWSP2002xls SWP
Year Cachuma Desal SWP GibJun GW Recycled Total Shortage
1918 8277 2357 6366 300 900 18200 14300 80
1919 8277 2400 5865 758 900 18200 14300 80
1920 8277 2400 5560 1063 900 18200 14300 80
1921 8277 2400 5483 1140 900 18200 14300 80
1922 8277 2792 5931 300 900 18200 14300 94 094
1923 8277 2894 5829 300 900 18200 14300 99 099
1924 8277 1500 5494 2029 900 18200 14300 50 05
1925 8277 1290 5294 2439 900 18200 14300 43 043
1926 8277 1740 5406 1877 900 18200 14300 58 058
1927 8277 2550 5643 830 900 18200 14300 85 085
1928 8277 2580 5548 895 900 18200 14300 86 086
1929 8277 1680 5425 1918 900 18200 14300 56 056
1930 8232 1710 5330 2028 900 18200 14300 57 057
1931 7306 1260 4673 4061 900 18200 14300 42 042
1932 7857 1320 4713 3410 900 18200 14300 44 044
1933 8277 1140 5451 2432 900 18200 14300 38 038
1934 8277 990 5347 2686 900 18200 14300 33 033
1935 8277 1950 5528 1545 900 18200 14300 65 065
1936 8277 2460 5544 1019 900 18200 14300 82 082
1937 8277 2220 5797 1006 900 18200 14300 74 074
1938 8277 2613 6110 300 900 18200 14300 94 094
1939 8277 2640 5914 469 900 18200 14300 88 088
1940 8277 2460 5586 977 900 18200 14300 82 082
1941 8277 2318 6405 300 900 18200 14300 97 097
1942 8277 2473 6250 300 900 18200 14300 100 1
1943 8277 2534 6189 300 900 18200 14300 89 089
1944 8277 2639 6084 300 900 18200 14300 92 092
1945 8277 2700 5804 519 900 18200 14300 90 09
1946 8277 2640 5630 753 900 18200 14300 88 088
1947 8277 2250 5427 1346 900 18200 14300 75 075
1948 8277 2010 5236 1777 900 18200 14300 67 067
1949 7856 974 1950 2021 4500 900 18200 14300 65 065
1950 6760 694 2010 3336 4500 900 18200 14300 67 067
1951 5470 3000 2640 500 4500 900 17010 1190 00653787487 14300 88 088
1952 7546 2155 2880 4419 300 900 18200 14300 96 096
1953 8277 323 2700 5700 300 900 18200 14300 90 09
1954 8277 739 2490 5494 300 900 18200 14300 83 083
1955 8277 1222 2070 5431 300 900 18200 14300 69 069
1956 8234 2700 5462 904 900 18200 14300 90 09
1957 7521 2640 5411 1728 900 18200 14300 88 088
1958 7875 2700 5997 728 900 18200 14300 90 09
1959 8277 2640 5921 462 900 18200 14300 88 088
1960 8277 1890 5497 1636 900 18200 14300 63 063
1961 8277 1830 4178 3014 900 18200 14300 61 061
1962 8277 2340 4147 2536 900 18200 14300 78 078
1963 8277 2820 5537 666 900 18200 14300 94 094
1964 8277 2640 5327 1056 900 18200 14300 88 088
1965 8081 2460 5309 1450 900 18200 14300 82 082
1966 8220 2880 5639 561 900 18200 14300 96 096
1967 8277 2827 5896 300 900 18200 14300 96 096
1968 8277 2670 5675 678 900 18200 14300 89 089
1969 8277 2397 6326 300 900 18200 14300 93 093
1970 8277 2670 6036 317 900 18200 14300 89 089
1971 8277 2820 5733 470 900 18200 14300 94 094
1972 8277 2640 5443 940 900 18200 14300 88 088
1973 8277 2460 5747 816 900 18200 14300 82 082
1974 8277 2820 5785 418 900 18200 14300 94 094
1975 8277 2880 5742 401 900 18200 14300 96 096
1976 8277 2640 5515 868 900 18200 14300 88 088
1977 8277 990 5279 2754 900 18200 14300 33 033
1978 8277 2040 6052 931 900 18200 14300 68 068
1979 8277 2550 6171 302 900 18200 14300 85 085
1980 8277 2460 6188 375 900 18200 14300 82 082
1981 8277 2490 6145 388 900 18200 14300 83 083
1982 8277 2735 5988 300 900 18200 14300 94 094
1983 8277 1768 6955 300 900 18200 14300 100 1
1984 8277 2419 6304 300 900 18200 14300 100 1
1985 8277 2872 5851 300 900 18200 14300 96 096
1986 8277 2430 5703 890 900 18200 14300 81 081
1987 8277 2070 5321 1632 900 18200 14300 69 069
1988 8277 1290 5858 1875 900 18200 14300 43 043
1989 7990 1740 5641 1929 900 18200 14300 58 058
1990 6885 2365 1380 2170 4500 900 18200 14300 46 046
1991 6829 2388 870 2713 4500 900 18200 14300 29 029
1992 7997 2213 930 5860 300 900 18200 14300 31 031
1993 8277 1857 6866 300 900 18200 14300 76 076
Average 8122 211 2249 5436 1266 900 18184 769342 088
2241
7470
163592
1918 1918 1918 1918 1918 1918 1918
1919 1919 1919 1919 1919 1919 1919
1920 1920 1920 1920 1920 1920 1920
1921 1921 1921 1921 1921 1921 1921
1922 1922 1922 1922 1922 1922 1922
1923 1923 1923 1923 1923 1923 1923
1924 1924 1924 1924 1924 1924 1924
1925 1925 1925 1925 1925 1925 1925
1926 1926 1926 1926 1926 1926 1926
1927 1927 1927 1927 1927 1927 1927
1928 1928 1928 1928 1928 1928 1928
1929 1929 1929 1929 1929 1929 1929
1930 1930 1930 1930 1930 1930 1930
1931 1931 1931 1931 1931 1931 1931
1932 1932 1932 1932 1932 1932 1932
1933 1933 1933 1933 1933 1933 1933
1934 1934 1934 1934 1934 1934 1934
1935 1935 1935 1935 1935 1935 1935
1936 1936 1936 1936 1936 1936 1936
1937 1937 1937 1937 1937 1937 1937
1938 1938 1938 1938 1938 1938 1938
1939 1939 1939 1939 1939 1939 1939
1940 1940 1940 1940 1940 1940 1940
1941 1941 1941 1941 1941 1941 1941
1942 1942 1942 1942 1942 1942 1942
1943 1943 1943 1943 1943 1943 1943
1944 1944 1944 1944 1944 1944 1944
1945 1945 1945 1945 1945 1945 1945
1946 1946 1946 1946 1946 1946 1946
1947 1947 1947 1947 1947 1947 1947
1948 1948 1948 1948 1948 1948 1948
1949 1949 1949 1949 1949 1949 1949
1950 1950 1950 1950 1950 1950 1950
1951 1951 1951 1951 1951 1951 1951
1952 1952 1952 1952 1952 1952 1952
1953 1953 1953 1953 1953 1953 1953
1954 1954 1954 1954 1954 1954 1954
1955 1955 1955 1955 1955 1955 1955
1956 1956 1956 1956 1956 1956 1956
1957 1957 1957 1957 1957 1957 1957
1958 1958 1958 1958 1958 1958 1958
1959 1959 1959 1959 1959 1959 1959
1960 1960 1960 1960 1960 1960 1960
1961 1961 1961 1961 1961 1961 1961
1962 1962 1962 1962 1962 1962 1962
1963 1963 1963 1963 1963 1963 1963
1964 1964 1964 1964 1964 1964 1964
1965 1965 1965 1965 1965 1965 1965
1966 1966 1966 1966 1966 1966 1966
1967 1967 1967 1967 1967 1967 1967
1968 1968 1968 1968 1968 1968 1968
1969 1969 1969 1969 1969 1969 1969
1970 1970 1970 1970 1970 1970 1970
1971 1971 1971 1971 1971 1971 1971
1972 1972 1972 1972 1972 1972 1972
1973 1973 1973 1973 1973 1973 1973
1974 1974 1974 1974 1974 1974 1974
1975 1975 1975 1975 1975 1975 1975
1976 1976 1976 1976 1976 1976 1976
1977 1977 1977 1977 1977 1977 1977
1978 1978 1978 1978 1978 1978 1978
1979 1979 1979 1979 1979 1979 1979
1980 1980 1980 1980 1980 1980 1980
1981 1981 1981 1981 1981 1981 1981
1982 1982 1982 1982 1982 1982 1982
1983 1983 1983 1983 1983 1983 1983
1984 1984 1984 1984 1984 1984 1984
1985 1985 1985 1985 1985 1985 1985
1986 1986 1986 1986 1986 1986 1986
1987 1987 1987 1987 1987 1987 1987
1988 1988 1988 1988 1988 1988 1988
1989 1989 1989 1989 1989 1989 1989
1990 1990 1990 1990 1990 1990 1990
1991 1991 1991 1991 1991 1991 1991
1992 1992 1992 1992 1992 1992 1992
1993 1993 1993 1993 1993 1993 1993
Cachuma
Gibraltar
Groundwater
Recycled Water
State Water
Desalination
Page 14: PUBLIC WORKS DEPARTMENT WATER RESOURCES DIVISION …...mountain • Supply ranges from ... Water Supplies –State Water • A small, but useful part of our water supply • Both the

SantaBarbaraCAgovWater5

Historical BackgroundLong-Term Water Supply Program (1994)

- Added Recycled WaterDesal amp State Water

- Critical Period Planning- Demand Estimate per

General Plan Update (1989)- Water Conservation savings

of 1500 AFY planned

LTWSP Water Supply(AF of Capacity)

Cachuma8277 AF

Gibraltar6000 AF

Groundwater4150 AF

State Water3000 AF

Recycled800 AF

Desalination3125 AF

Chart2

Cachuma8277 AF
Gibraltar6000 AF
Groundwater4150 AF
State Water3000 AF
Recycled800 AF
Desalination3125 AF
Current
LTWSP Water Supply(AF of Capacity)
8577
6000
4150
800
3000
3125

ltwspCht

ampA
Page ampP
Recycled
Cachuma
Gib etc
SWP
GW
Desal
Shortage
Water Supply (AF)
Figure 1 Long-Term Water Supply ProgramUpdated to include surchararge fish releases and 1990 drought
900
82773366
6366
23566634
300
900
82773366
5865
2400
7576634
900
82773366
5560
2400
10626634
900
82773366
5483
2400
11396634
900
82773366
5931
27916634
300
900
82773366
5829
28936634
300
900
82773366
5494
1500
20286634
900
82773366
5294
1290
24386634
900
82773366
5406
1740
18766634
900
82773366
5643
2550
8296634
900
82773366
5548
2580
8946634
900
82773366
5425
1680
19176634
900
8231514135
5330
1710
2028485865
900
7305562347
4673246
1260
4061191653
900
7856777469
471278
1320
3410442531
900
82773366
5451
1140
24316634
900
82773366
5347
990
26856634
900
82773366
5528
1950
15446634
900
82773366
5544
2460
10186634
900
82773366
5797
2220
10056634
900
82773366
6110
26126634
300
900
82773366
5914
2640
4686634
900
82773366
5586
2460
9766634
900
82773366
6405
23176634
300
900
82773366
6250
24726634
300
900
82773366
6189
25336634
300
900
82773366
6084
26386634
300
900
82773366
5804
2700
5186634
900
82773366
5630
2640
7526634
900
82773366
5427
2250
13456634
900
82773366
5236
2010
17766634
900
7855786017
2020508
1950
4500
974
900
6759906438
3335608
2010
4500
694485562
900
547040079
500
2640
4500
3000
1189893227
900
7545802755
441926
2880
300
2155
900
82773366
5700
2700
300
323
900
82773366
5494
2490
300
739
900
82773366
5431
2070
300
1222
900
8233699836
5462
2700
904300164
900
7520604423
5411
2640
1728395577
900
787483284
5997
2700
72816716
900
82773366
5921
2640
4616634
900
82773366
5497
1890
16356634
900
82773366
4178353
1830
30143104
900
82773366
4147065
2340
25355984
900
82773366
5537
2820
6656634
900
82773366
5327
2640
10556634
900
8080887468
5309
2460
1450112532
900
8219636025
5639
2880
561363975
900
82773366
5896
28266634
300
900
82773366
5675
2670
6776634
900
82773366
6326
23966634
300
900
82773366
6036
2670
3166634
900
82773366
5733
2820
4696634
900
82773366
5443
2640
9396634
900
82773366
5747
2460
8156634
900
82773366
5785
2820
4176634
900
82773366
5742
2880
4006634
900
82773366
5515
2640
8676634
900
82773366
5279
990
27536634
900
82773366
6052
2040
9306634
900
82773366
6171
2550
3016634
900
82773366
6188
2460
3746634
900
82773366
6145
2490
3876634
900
82773366
5988
27346634
300
900
82773366
6955
17676634
300
900
82773366
6304
24186634
300
900
82773366
5851
28716634
300
900
82773366
5703
2430
8896634
900
82773366
5321
2070
16316634
900
82773366
5858
1290
18746634
900
7990356312
5641
1740
1928643688
900
6885154509
2170335
1380
4500
2364510491
900
682933383
271296
870
4500
238770617
900
7997267505
5860
930
300
2213
900
82773366
6866
18566634
300

LTWSP2002

LTWSP2002 (coincide)

Text of Accompanying Email

Chart1

Maximum Capacity (AF)
8277
5000
1000
3000
4150
800
300
3125

Pie Chart Data

Pie Chart Data

Cachuma8277 AF
Gibraltar6000 AF
Groundwater4150 AF
State Water3000 AF
Recycled800 AF
Desalination3125 AF
Current
Current Water Supply(AF of Capacity)
Gibraltar7400 AF
Cachuma9700 AF
Groundwater4500 AF
1980s
1980s Water Supply(AF of Capacity)

SantaBarbaraCAgovWater6

City of Santa Barbara Water Demand(Acre Feet of Production by Calendar Year - Potable + Recycled)

0

2500

5000

7500

10000

12500

15000

17500

20000

1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010

Figure ___

Total System Production (AF)

12 Months Ending

13374

February 28 2011

Post-DroughtPre-Drought Drought

SantaBarbaraCAgovWater7

Water Supplies - Cachumabull Primary City

Water Supply

bull Multi-Year SourceA few dry years notan issue

bull 8277 AFYCurrent Entitlement

bull 7863 AFYProjected Entitlement (2030)

SantaBarbaraCAgovWater8

Water Supplies - Cachuma

0

50000

100000

150000

200000

250000

1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011Water Year

Historical StorageVolumes1987-1993 Period

Recent History of Lake Cachuma Storage Levels (AF)With 1987-1993 Period Shown for Comparison

Figure ____

SantaBarbaraCAgovWater9

Water Supplies - Gibraltarbull ldquoPass Throughrdquo

implementationin progress

bull Modelingunder review

bull Conservative planning assumptions used pending modeling results

bull Sedimentation management study planned

SantaBarbaraCAgovWater10

Water Supplies ndash Mission Tunnelbull Infiltration from

percolating groundwateron both sides of themountain

bull Supply ranges from500 to 2375 AFY

bull Average contribution1125 AFY

SantaBarbaraCAgovWater11

Water Supplies ndash State Waterbull A small but useful part of our water

supply

bull Both the water amp the pipeline have value

bull Cityrsquos maximum delivery amount - 3300 AFY

bull Deliveries subject to availability

SantaBarbaraCAgovWater12

Water Supplies ndash State Waterbull Projections based on DWR

modeling using long-term databull No Delta or storage

improvementsbull Environmental limits remain in

effectbull Climate change effects assumed

SantaBarbaraCAgovWater13

Water Supplies - Groundwater

SantaBarbaraCAgovWater14

Water Supplies ndash Groundwaterbull Pumping occurs in

Downtown amp OuterState Street areas

bull 1300 AFY safe yieldbull Average City pumping

assumed at ~1100 AFYbull Maximum of 4150 AFY during drought

Ortega Groundwater Treatment Plant

SantaBarbaraCAgovWater15

Water Supplies ndash Recycled WaterRecycled Water Distribution System

SantaBarbaraCAgovWater16

Water Supplies ndash Recycled Waterbull Displaces use of potable

water amp extends water supplybull Current connected

demand 800 AFYbull 300 AFY potential demand amp capacity identifiedbull Target demand 1100 AFYbull Blending an economical solution for reducing mineral

contentbull Policy issues related to blending

SantaBarbaraCAgovWater17

Water Supplies ndash Recycled Water

SantaBarbaraCAgovWater18

Recycled Water Blending bull Filterability (turbidity) - solution identifiedbull Mineral Content (salts) separate issue -

- Blending $180AF added operating cost- MFRO $341AF added cost + $46 million

capitalbull Proposed Policy ldquoContingency Plan to

eliminate blending with goal to be ready to implement plan based on economic regulatory or water supply requirementsrdquo

SantaBarbaraCAgovWater19

Water Supplies - Desalination

bull Reliable butexpensive source

bull $177 million toreactivate if needed

bull Important to keepfor use in case ofextended drought

bull Proposed Planning Goal Avoid use until year six of Critical Drought Period

SantaBarbaraCAgovWater20

Demand Managementbull Declining demand

- Best Management Practices (CUWCC)- Conservation Program- 20 x 2020- Plumbing Code amp Appliance Standards

bull Projected development - 800 to 900 AFY bull Water Conservation Technical Evaluation

SantaBarbaraCAgovWater21

Demand Projections

12000

12500

13000

13500

14000

14500

15000

2010 2012 2014 2016 2018 2020 2022 2024 2026 2028 2030

Plan SB Demand (No Plumbing Code or Conservation Effects)Plumbing Code Effects OnlyPlumbing Code + Program B20 X 2020 Trend Line20 X 2020 Regulatory Limit

Water System Demand Projections (AFY)

SantaBarbaraCAgovWater22

Water Supply Planning Target

Projected Demand 14000Safety Margin (10) + 1400

Water Supply Target = 15400 AFY

SantaBarbaraCAgovWater23

Water Supply Planning Conceptsbull Planning for 6-Year Critical Drought Periodbull Water Supply Modeling - Using Historical

Data with Current Water Supply Sources and Projected Demands

bull Ongoing Conservation vs Short Term Planned Demand Reductions for Extraordinary Situations

SantaBarbaraCAgovWater24

Water Supply Performance

SantaBarbaraCAgovWater25

SantaBarbaraCAgovWater26

SantaBarbaraCAgovWater27

SantaBarbaraCAgovWater28

Key Policy Issuesbull Achieve 20 x 2020 through BMPs Additional

Conservation Measures amp Recycled Waterbull Planning for a 6-Year Duration Critical Drought

- Manage supplies to avoid use of Desal until year six- Water Banking Purchases- Planned Demand Reductions 10 to 15- Recycled Water Expansion

bull Recycled Water Blending bull Sedimentation Management

SantaBarbaraCAgovWater29

Next Stepsbull Finalize updated Long-Term Water

Supply Plan- April 11 Final Comments from Water

Commission- Environmental Review

bull Prepare Urban Water Management Plan Update per State Requirements

bull Target Adoption Date for LTWSP amp UWMP - June 14 2011

SantaBarbaraCAgovWater30

Discussion amp Feedback

SantaBarbaraCAgovWater31

SantaBarbaraCAgovWater32

SantaBarbaraCAgovWater33

SantaBarbaraCAgovWater34

SantaBarbaraCAgovWater35

SantaBarbaraCAgovWater36

Upper Santa Ynez River Operations Agreement(ldquoPass Through Agreementrdquo)

SantaBarbaraCAgovWater37

Context of 1989 Agreementbull City water supply shortage identified ndash Gibraltar

vulnerable to siltation

bull Solution Raise Gibraltar Dam 20rsquo to 40rsquo

bull Challenges by downstream and environmental interests

bull Cachuma enlargement under consideration

SantaBarbaraCAgovWater38

Parties to the Agreement

bull City of Santa Barbarabull Carpinteria Valley Water Districtbull Goleta Water Districtbull Montecito Water Districtbull Santa Ynez River Water Conservation Districtbull SYRWCD Improvement District No 1

Consent and Acknowledgement by US Bureau of Reclamation

SantaBarbaraCAgovWater39

Pass Through Summer no inflow

Current volume (reflects on-going siltation since 1988)

1988 Reservoir volume

Note different siltation levels

SantaBarbaraCAgovWater40

Smaller Reservoir Spills Sooner1988 Reservoir volume

Current Reservoir volume

SantaBarbaraCAgovWater41

Difference is Stored in Cachuma as Gibraltar WaterBase Reservoir

Actual Reservoir

SantaBarbaraCAgovWater42

  • Long Term Water Supply Plan Adaptive Management
  • Overview
  • Historical Background
  • Historical Background
  • Historical Background
  • Slide Number 6
  • Water Supplies - Cachuma
  • Water Supplies - Cachuma
  • Water Supplies - Gibraltar
  • Water Supplies ndash Mission Tunnel
  • Water Supplies ndash State Water
  • Water Supplies ndash State Water
  • Water Supplies - Groundwater
  • Water Supplies ndash Groundwater
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Recycled Water Blending
  • Water Supplies - Desalination
  • Demand Management
  • Demand Projections
  • Water Supply Planning Target
  • Water Supply Planning Concepts
  • Water Supply Performance
  • Slide Number 25
  • Slide Number 26
  • Slide Number 27
  • Key Policy Issues
  • Next Steps
  • Discussion amp Feedback
  • Slide Number 31
  • Slide Number 32
  • Slide Number 33
  • Slide Number 34
  • Slide Number 35
  • Slide Number 36
  • Context of 1989 Agreement
  • Parties to the Agreement
  • Pass Through Summer no inflow
  • Smaller Reservoir Spills Sooner
  • Difference is Stored in Cachuma as Gibraltar Water
  • Slide Number 42
Detailed Simple
Maximum Capacity () Maximum Capacity (AF) 1980s Current
Lake Cachuma 32 8277 Cachuma 9700 8577
Gibraltar Reservoir 19 5000 Gibraltar 7400 6000
Mission Tunnel 4 1000 Groundwater 4500 4150
State Water Project 12 3000 Recycled Water 800
Groundwater 16 4150 State Water 3000
Recycled Water 3 800 Desalination 3125
Montecito Transfer 1 300 Totals 21600 25652
Desalination 12 3125
100 25652
Lake Cachuma
Gibraltar Reservoir
Mission Tunnel
State Water Project
Groundwater
Recycled Water
Montecito Transfer
Desalination
In our review of the FMP EIREIS we had a small discussion on how to characterize our water supplies in particular State Water In that discussion I commented that the average State Water delivery did not apply to how we did our water supply planning a
The supply target in this analysis is 18200 AFY with a goal of having no shortage greater than 1820 (10) in any year The critical year is 1951 This supply target was developed for us by our Community Development Department for the LTWSP and include
The Cityrsquos supply strategy as modeled is to
use all surface water supply first with a minimum (300 AFY) amount of local groundwater
use available State Water to get us to the supply target
if enough State Water is not available meet the supply target with local groundwater up to 4500 AFY
if that is not enough turn on the desal plant with a goal of having no shortage greater than 1820 AFY in the critical year
The modeling results presented in the first spreadsheet page (LTWSP2002) and the chart shows that our supplies meet the overall production target and satisfy the goal of having a shortage less than 10 in the critical year
In this analysis State Water is an important element in meeting the annual target and the critical year shortage goal The average delivery of State Water is meaningless in this analysis Also with the Cityrsquos approach our average delivery of State Wat
Another important consideration is that the estimates of State Water deliveries based on history result in historical critical periods for the Santa Ynez River and the State Water Project not coinciding I think it is acceptable for one to do this analys
I am not sure where this leaves us with respect to what we put in the FMP EISEIR for our individual water supplies For the City of Santa Barbara input I can give John Gray the bottom line of the spreadsheet with our averages for the 76 year period T
One value of the Cityrsquos approach is that it gives some meaning to the shortages that would happen (or at least are modeled to happen) if the surcharge is not included or other changes to Cachuma Project yield are suggested Our goal again is a shortage
LONG TERM WATER SUPPLY PROGRAM SUPPLY SCENARIO
As estimated by the Santa Ynez River Hydrology Model using 3 ft surcharge and BO fish releases
State Water critical period is moved to coincide with Cachuma critical period
Water Conservation and GW recharge is left out of this version
Includes ground water recovery and 10 safety margin values in acre feet production is 18200 AFY
Filename=LTWSP2002xls SWP
Year Cachuma Desal SWP GibJun GW Recycled Total Shortage
1918 8277 2357 6366 300 900 18200 14300 80
1919 8277 2400 5865 758 900 18200 14300 80
1920 8277 2400 5560 1063 900 18200 14300 80
1921 8277 2400 5483 1140 900 18200 14300 80
1922 8277 2792 5931 300 900 18200 14300 94 094
1923 8277 2894 5829 300 900 18200 14300 99 099
1924 8277 1500 5494 2029 900 18200 14300 50 05
1925 8277 1290 5294 2439 900 18200 14300 43 043
1926 8277 1740 5406 1877 900 18200 14300 58 058
1927 8277 2550 5643 830 900 18200 14300 85 085
1928 8277 2580 5548 895 900 18200 14300 86 086
1929 8277 1680 5425 1918 900 18200 14300 56 056
1930 8232 2250 5330 1488 900 18200 14300 75 057
1931 7306 2010 4673 3311 900 18200 14300 67 042
1932 7857 1950 4713 2780 900 18200 14300 65 044
1933 8277 2010 5451 1562 900 18200 14300 67 038
1934 8277 2640 5347 1036 900 18200 14300 88 033
1935 8277 1950 5528 1545 900 18200 14300 65 065
1936 8277 2460 5544 1019 900 18200 14300 82 082
1937 8277 2220 5797 1006 900 18200 14300 74 074
1938 8277 2613 6110 300 900 18200 14300 94 094
1939 8277 2640 5914 469 900 18200 14300 88 088
1940 8277 2460 5586 977 900 18200 14300 82 082
1941 8277 2318 6405 300 900 18200 14300 97 097
1942 8277 2473 6250 300 900 18200 14300 100 1
1943 8277 2534 6189 300 900 18200 14300 89 089
1944 8277 2639 6084 300 900 18200 14300 92 092
1945 8277 2700 5804 519 900 18200 14300 90 09
1946 8277 2640 5630 753 900 18200 14300 88 088
1947 8277 1710 5427 1886 900 18200 14300 57 075
1948 8277 1260 5236 2527 900 18200 14300 42 067
1949 7856 1604 1320 2021 4500 900 18200 -0 14300 44 065
1950 6760 1564 1140 3336 4500 900 18200 0 14300 38 067
1951 5470 3000 990 500 4500 900 15360 2840 01560380894 14300 33 088
1952 7546 2155 2880 4419 300 900 18200 14300 96 096
1953 8277 323 2700 5700 300 900 18200 14300 90 09
1954 8277 739 2490 5494 300 900 18200 14300 83 083
1955 8277 1222 2070 5431 300 900 18200 14300 69 069
1956 8234 2700 5462 904 900 18200 14300 90 09
1957 7521 2640 5411 1728 900 18200 14300 88 088
1958 7875 2700 5997 728 900 18200 14300 90 09
1959 8277 2640 5921 462 900 18200 14300 88 088
1960 8277 1890 5497 1636 900 18200 14300 63 063
1961 8277 1830 4178 3014 900 18200 14300 61 061
1962 8277 2340 4147 2536 900 18200 14300 78 078
1963 8277 2820 5537 666 900 18200 14300 94 094
1964 8277 2640 5327 1056 900 18200 14300 88 088
1965 8081 2460 5309 1450 900 18200 14300 82 082
1966 8220 2880 5639 561 900 18200 14300 96 096
1967 8277 2827 5896 300 900 18200 14300 96 096
1968 8277 2670 5675 678 900 18200 14300 89 089
1969 8277 2397 6326 300 900 18200 14300 93 093
1970 8277 2670 6036 317 900 18200 14300 89 089
1971 8277 2820 5733 470 900 18200 14300 94 094
1972 8277 2640 5443 940 900 18200 14300 88 088
1973 8277 2460 5747 816 900 18200 14300 82 082
1974 8277 2820 5785 418 900 18200 14300 94 094
1975 8277 2880 5742 401 900 18200 14300 96 096
1976 8277 2640 5515 868 900 18200 14300 88 088
1977 8277 990 5279 2754 900 18200 14300 33 033
1978 8277 2040 6052 931 900 18200 14300 68 068
1979 8277 2550 6171 302 900 18200 14300 85 085
1980 8277 2460 6188 375 900 18200 14300 82 082
1981 8277 2490 6145 388 900 18200 14300 83 083
1982 8277 2735 5988 300 900 18200 14300 94 094
1983 8277 1768 6955 300 900 18200 14300 100 1
1984 8277 2419 6304 300 900 18200 14300 100 1
1985 8277 2872 5851 300 900 18200 14300 96 096
1986 8277 2430 5703 890 900 18200 14300 81 081
1987 8277 2070 5321 1632 900 18200 14300 69 069
1988 8277 1290 5858 1875 900 18200 14300 43 043
1989 7990 1740 5641 1929 900 18200 14300 58 058
1990 6885 2365 1380 2170 4500 900 18200 14300 46 046
1991 6829 2388 870 2713 4500 900 18200 14300 29 029
1992 7997 2213 930 5860 300 900 18200 14300 31 031
1993 8277 1857 6866 300 900 18200 14300 76 076
Average 8122 231 2249 5436 1224 900 18163 769342 088
2241
7470
163592
LONG TERM WATER SUPPLY PROGRAM SUPPLY SCENARIO
As estimated by the Santa Ynez River Hydrology Model using 3 ft surcharge and BO fish releases
State Water deliveries are based on delivery estimates provided by CCWA in 2001
Water Conservation and GW recharge is left out of this version
Includes ground water recovery and 10 safety margin values in acre feet production is 18200 AFY
Filename=LTWSP2002xls SWP
Year Cachuma Desal SWP GibJun GW Recycled Total Shortage
1918 8277 2357 6366 300 900 18200 14300 80
1919 8277 2400 5865 758 900 18200 14300 80
1920 8277 2400 5560 1063 900 18200 14300 80
1921 8277 2400 5483 1140 900 18200 14300 80
1922 8277 2792 5931 300 900 18200 14300 94 094
1923 8277 2894 5829 300 900 18200 14300 99 099
1924 8277 1500 5494 2029 900 18200 14300 50 05
1925 8277 1290 5294 2439 900 18200 14300 43 043
1926 8277 1740 5406 1877 900 18200 14300 58 058
1927 8277 2550 5643 830 900 18200 14300 85 085
1928 8277 2580 5548 895 900 18200 14300 86 086
1929 8277 1680 5425 1918 900 18200 14300 56 056
1930 8232 1710 5330 2028 900 18200 14300 57 057
1931 7306 1260 4673 4061 900 18200 14300 42 042
1932 7857 1320 4713 3410 900 18200 14300 44 044
1933 8277 1140 5451 2432 900 18200 14300 38 038
1934 8277 990 5347 2686 900 18200 14300 33 033
1935 8277 1950 5528 1545 900 18200 14300 65 065
1936 8277 2460 5544 1019 900 18200 14300 82 082
1937 8277 2220 5797 1006 900 18200 14300 74 074
1938 8277 2613 6110 300 900 18200 14300 94 094
1939 8277 2640 5914 469 900 18200 14300 88 088
1940 8277 2460 5586 977 900 18200 14300 82 082
1941 8277 2318 6405 300 900 18200 14300 97 097
1942 8277 2473 6250 300 900 18200 14300 100 1
1943 8277 2534 6189 300 900 18200 14300 89 089
1944 8277 2639 6084 300 900 18200 14300 92 092
1945 8277 2700 5804 519 900 18200 14300 90 09
1946 8277 2640 5630 753 900 18200 14300 88 088
1947 8277 2250 5427 1346 900 18200 14300 75 075
1948 8277 2010 5236 1777 900 18200 14300 67 067
1949 7856 974 1950 2021 4500 900 18200 14300 65 065
1950 6760 694 2010 3336 4500 900 18200 14300 67 067
1951 5470 3000 2640 500 4500 900 17010 1190 00653787487 14300 88 088
1952 7546 2155 2880 4419 300 900 18200 14300 96 096
1953 8277 323 2700 5700 300 900 18200 14300 90 09
1954 8277 739 2490 5494 300 900 18200 14300 83 083
1955 8277 1222 2070 5431 300 900 18200 14300 69 069
1956 8234 2700 5462 904 900 18200 14300 90 09
1957 7521 2640 5411 1728 900 18200 14300 88 088
1958 7875 2700 5997 728 900 18200 14300 90 09
1959 8277 2640 5921 462 900 18200 14300 88 088
1960 8277 1890 5497 1636 900 18200 14300 63 063
1961 8277 1830 4178 3014 900 18200 14300 61 061
1962 8277 2340 4147 2536 900 18200 14300 78 078
1963 8277 2820 5537 666 900 18200 14300 94 094
1964 8277 2640 5327 1056 900 18200 14300 88 088
1965 8081 2460 5309 1450 900 18200 14300 82 082
1966 8220 2880 5639 561 900 18200 14300 96 096
1967 8277 2827 5896 300 900 18200 14300 96 096
1968 8277 2670 5675 678 900 18200 14300 89 089
1969 8277 2397 6326 300 900 18200 14300 93 093
1970 8277 2670 6036 317 900 18200 14300 89 089
1971 8277 2820 5733 470 900 18200 14300 94 094
1972 8277 2640 5443 940 900 18200 14300 88 088
1973 8277 2460 5747 816 900 18200 14300 82 082
1974 8277 2820 5785 418 900 18200 14300 94 094
1975 8277 2880 5742 401 900 18200 14300 96 096
1976 8277 2640 5515 868 900 18200 14300 88 088
1977 8277 990 5279 2754 900 18200 14300 33 033
1978 8277 2040 6052 931 900 18200 14300 68 068
1979 8277 2550 6171 302 900 18200 14300 85 085
1980 8277 2460 6188 375 900 18200 14300 82 082
1981 8277 2490 6145 388 900 18200 14300 83 083
1982 8277 2735 5988 300 900 18200 14300 94 094
1983 8277 1768 6955 300 900 18200 14300 100 1
1984 8277 2419 6304 300 900 18200 14300 100 1
1985 8277 2872 5851 300 900 18200 14300 96 096
1986 8277 2430 5703 890 900 18200 14300 81 081
1987 8277 2070 5321 1632 900 18200 14300 69 069
1988 8277 1290 5858 1875 900 18200 14300 43 043
1989 7990 1740 5641 1929 900 18200 14300 58 058
1990 6885 2365 1380 2170 4500 900 18200 14300 46 046
1991 6829 2388 870 2713 4500 900 18200 14300 29 029
1992 7997 2213 930 5860 300 900 18200 14300 31 031
1993 8277 1857 6866 300 900 18200 14300 76 076
Average 8122 211 2249 5436 1266 900 18184 769342 088
2241
7470
163592
1918 1918 1918 1918 1918 1918 1918
1919 1919 1919 1919 1919 1919 1919
1920 1920 1920 1920 1920 1920 1920
1921 1921 1921 1921 1921 1921 1921
1922 1922 1922 1922 1922 1922 1922
1923 1923 1923 1923 1923 1923 1923
1924 1924 1924 1924 1924 1924 1924
1925 1925 1925 1925 1925 1925 1925
1926 1926 1926 1926 1926 1926 1926
1927 1927 1927 1927 1927 1927 1927
1928 1928 1928 1928 1928 1928 1928
1929 1929 1929 1929 1929 1929 1929
1930 1930 1930 1930 1930 1930 1930
1931 1931 1931 1931 1931 1931 1931
1932 1932 1932 1932 1932 1932 1932
1933 1933 1933 1933 1933 1933 1933
1934 1934 1934 1934 1934 1934 1934
1935 1935 1935 1935 1935 1935 1935
1936 1936 1936 1936 1936 1936 1936
1937 1937 1937 1937 1937 1937 1937
1938 1938 1938 1938 1938 1938 1938
1939 1939 1939 1939 1939 1939 1939
1940 1940 1940 1940 1940 1940 1940
1941 1941 1941 1941 1941 1941 1941
1942 1942 1942 1942 1942 1942 1942
1943 1943 1943 1943 1943 1943 1943
1944 1944 1944 1944 1944 1944 1944
1945 1945 1945 1945 1945 1945 1945
1946 1946 1946 1946 1946 1946 1946
1947 1947 1947 1947 1947 1947 1947
1948 1948 1948 1948 1948 1948 1948
1949 1949 1949 1949 1949 1949 1949
1950 1950 1950 1950 1950 1950 1950
1951 1951 1951 1951 1951 1951 1951
1952 1952 1952 1952 1952 1952 1952
1953 1953 1953 1953 1953 1953 1953
1954 1954 1954 1954 1954 1954 1954
1955 1955 1955 1955 1955 1955 1955
1956 1956 1956 1956 1956 1956 1956
1957 1957 1957 1957 1957 1957 1957
1958 1958 1958 1958 1958 1958 1958
1959 1959 1959 1959 1959 1959 1959
1960 1960 1960 1960 1960 1960 1960
1961 1961 1961 1961 1961 1961 1961
1962 1962 1962 1962 1962 1962 1962
1963 1963 1963 1963 1963 1963 1963
1964 1964 1964 1964 1964 1964 1964
1965 1965 1965 1965 1965 1965 1965
1966 1966 1966 1966 1966 1966 1966
1967 1967 1967 1967 1967 1967 1967
1968 1968 1968 1968 1968 1968 1968
1969 1969 1969 1969 1969 1969 1969
1970 1970 1970 1970 1970 1970 1970
1971 1971 1971 1971 1971 1971 1971
1972 1972 1972 1972 1972 1972 1972
1973 1973 1973 1973 1973 1973 1973
1974 1974 1974 1974 1974 1974 1974
1975 1975 1975 1975 1975 1975 1975
1976 1976 1976 1976 1976 1976 1976
1977 1977 1977 1977 1977 1977 1977
1978 1978 1978 1978 1978 1978 1978
1979 1979 1979 1979 1979 1979 1979
1980 1980 1980 1980 1980 1980 1980
1981 1981 1981 1981 1981 1981 1981
1982 1982 1982 1982 1982 1982 1982
1983 1983 1983 1983 1983 1983 1983
1984 1984 1984 1984 1984 1984 1984
1985 1985 1985 1985 1985 1985 1985
1986 1986 1986 1986 1986 1986 1986
1987 1987 1987 1987 1987 1987 1987
1988 1988 1988 1988 1988 1988 1988
1989 1989 1989 1989 1989 1989 1989
1990 1990 1990 1990 1990 1990 1990
1991 1991 1991 1991 1991 1991 1991
1992 1992 1992 1992 1992 1992 1992
1993 1993 1993 1993 1993 1993 1993
Cachuma
Gibraltar
Groundwater
Recycled Water
State Water
Desalination
Page 15: PUBLIC WORKS DEPARTMENT WATER RESOURCES DIVISION …...mountain • Supply ranges from ... Water Supplies –State Water • A small, but useful part of our water supply • Both the

Chart2

Cachuma8277 AF
Gibraltar6000 AF
Groundwater4150 AF
State Water3000 AF
Recycled800 AF
Desalination3125 AF
Current
LTWSP Water Supply(AF of Capacity)
8577
6000
4150
800
3000
3125

ltwspCht

ampA
Page ampP
Recycled
Cachuma
Gib etc
SWP
GW
Desal
Shortage
Water Supply (AF)
Figure 1 Long-Term Water Supply ProgramUpdated to include surchararge fish releases and 1990 drought
900
82773366
6366
23566634
300
900
82773366
5865
2400
7576634
900
82773366
5560
2400
10626634
900
82773366
5483
2400
11396634
900
82773366
5931
27916634
300
900
82773366
5829
28936634
300
900
82773366
5494
1500
20286634
900
82773366
5294
1290
24386634
900
82773366
5406
1740
18766634
900
82773366
5643
2550
8296634
900
82773366
5548
2580
8946634
900
82773366
5425
1680
19176634
900
8231514135
5330
1710
2028485865
900
7305562347
4673246
1260
4061191653
900
7856777469
471278
1320
3410442531
900
82773366
5451
1140
24316634
900
82773366
5347
990
26856634
900
82773366
5528
1950
15446634
900
82773366
5544
2460
10186634
900
82773366
5797
2220
10056634
900
82773366
6110
26126634
300
900
82773366
5914
2640
4686634
900
82773366
5586
2460
9766634
900
82773366
6405
23176634
300
900
82773366
6250
24726634
300
900
82773366
6189
25336634
300
900
82773366
6084
26386634
300
900
82773366
5804
2700
5186634
900
82773366
5630
2640
7526634
900
82773366
5427
2250
13456634
900
82773366
5236
2010
17766634
900
7855786017
2020508
1950
4500
974
900
6759906438
3335608
2010
4500
694485562
900
547040079
500
2640
4500
3000
1189893227
900
7545802755
441926
2880
300
2155
900
82773366
5700
2700
300
323
900
82773366
5494
2490
300
739
900
82773366
5431
2070
300
1222
900
8233699836
5462
2700
904300164
900
7520604423
5411
2640
1728395577
900
787483284
5997
2700
72816716
900
82773366
5921
2640
4616634
900
82773366
5497
1890
16356634
900
82773366
4178353
1830
30143104
900
82773366
4147065
2340
25355984
900
82773366
5537
2820
6656634
900
82773366
5327
2640
10556634
900
8080887468
5309
2460
1450112532
900
8219636025
5639
2880
561363975
900
82773366
5896
28266634
300
900
82773366
5675
2670
6776634
900
82773366
6326
23966634
300
900
82773366
6036
2670
3166634
900
82773366
5733
2820
4696634
900
82773366
5443
2640
9396634
900
82773366
5747
2460
8156634
900
82773366
5785
2820
4176634
900
82773366
5742
2880
4006634
900
82773366
5515
2640
8676634
900
82773366
5279
990
27536634
900
82773366
6052
2040
9306634
900
82773366
6171
2550
3016634
900
82773366
6188
2460
3746634
900
82773366
6145
2490
3876634
900
82773366
5988
27346634
300
900
82773366
6955
17676634
300
900
82773366
6304
24186634
300
900
82773366
5851
28716634
300
900
82773366
5703
2430
8896634
900
82773366
5321
2070
16316634
900
82773366
5858
1290
18746634
900
7990356312
5641
1740
1928643688
900
6885154509
2170335
1380
4500
2364510491
900
682933383
271296
870
4500
238770617
900
7997267505
5860
930
300
2213
900
82773366
6866
18566634
300

LTWSP2002

LTWSP2002 (coincide)

Text of Accompanying Email

Chart1

Maximum Capacity (AF)
8277
5000
1000
3000
4150
800
300
3125

Pie Chart Data

Pie Chart Data

Cachuma8277 AF
Gibraltar6000 AF
Groundwater4150 AF
State Water3000 AF
Recycled800 AF
Desalination3125 AF
Current
Current Water Supply(AF of Capacity)
Gibraltar7400 AF
Cachuma9700 AF
Groundwater4500 AF
1980s
1980s Water Supply(AF of Capacity)

SantaBarbaraCAgovWater6

City of Santa Barbara Water Demand(Acre Feet of Production by Calendar Year - Potable + Recycled)

0

2500

5000

7500

10000

12500

15000

17500

20000

1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010

Figure ___

Total System Production (AF)

12 Months Ending

13374

February 28 2011

Post-DroughtPre-Drought Drought

SantaBarbaraCAgovWater7

Water Supplies - Cachumabull Primary City

Water Supply

bull Multi-Year SourceA few dry years notan issue

bull 8277 AFYCurrent Entitlement

bull 7863 AFYProjected Entitlement (2030)

SantaBarbaraCAgovWater8

Water Supplies - Cachuma

0

50000

100000

150000

200000

250000

1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011Water Year

Historical StorageVolumes1987-1993 Period

Recent History of Lake Cachuma Storage Levels (AF)With 1987-1993 Period Shown for Comparison

Figure ____

SantaBarbaraCAgovWater9

Water Supplies - Gibraltarbull ldquoPass Throughrdquo

implementationin progress

bull Modelingunder review

bull Conservative planning assumptions used pending modeling results

bull Sedimentation management study planned

SantaBarbaraCAgovWater10

Water Supplies ndash Mission Tunnelbull Infiltration from

percolating groundwateron both sides of themountain

bull Supply ranges from500 to 2375 AFY

bull Average contribution1125 AFY

SantaBarbaraCAgovWater11

Water Supplies ndash State Waterbull A small but useful part of our water

supply

bull Both the water amp the pipeline have value

bull Cityrsquos maximum delivery amount - 3300 AFY

bull Deliveries subject to availability

SantaBarbaraCAgovWater12

Water Supplies ndash State Waterbull Projections based on DWR

modeling using long-term databull No Delta or storage

improvementsbull Environmental limits remain in

effectbull Climate change effects assumed

SantaBarbaraCAgovWater13

Water Supplies - Groundwater

SantaBarbaraCAgovWater14

Water Supplies ndash Groundwaterbull Pumping occurs in

Downtown amp OuterState Street areas

bull 1300 AFY safe yieldbull Average City pumping

assumed at ~1100 AFYbull Maximum of 4150 AFY during drought

Ortega Groundwater Treatment Plant

SantaBarbaraCAgovWater15

Water Supplies ndash Recycled WaterRecycled Water Distribution System

SantaBarbaraCAgovWater16

Water Supplies ndash Recycled Waterbull Displaces use of potable

water amp extends water supplybull Current connected

demand 800 AFYbull 300 AFY potential demand amp capacity identifiedbull Target demand 1100 AFYbull Blending an economical solution for reducing mineral

contentbull Policy issues related to blending

SantaBarbaraCAgovWater17

Water Supplies ndash Recycled Water

SantaBarbaraCAgovWater18

Recycled Water Blending bull Filterability (turbidity) - solution identifiedbull Mineral Content (salts) separate issue -

- Blending $180AF added operating cost- MFRO $341AF added cost + $46 million

capitalbull Proposed Policy ldquoContingency Plan to

eliminate blending with goal to be ready to implement plan based on economic regulatory or water supply requirementsrdquo

SantaBarbaraCAgovWater19

Water Supplies - Desalination

bull Reliable butexpensive source

bull $177 million toreactivate if needed

bull Important to keepfor use in case ofextended drought

bull Proposed Planning Goal Avoid use until year six of Critical Drought Period

SantaBarbaraCAgovWater20

Demand Managementbull Declining demand

- Best Management Practices (CUWCC)- Conservation Program- 20 x 2020- Plumbing Code amp Appliance Standards

bull Projected development - 800 to 900 AFY bull Water Conservation Technical Evaluation

SantaBarbaraCAgovWater21

Demand Projections

12000

12500

13000

13500

14000

14500

15000

2010 2012 2014 2016 2018 2020 2022 2024 2026 2028 2030

Plan SB Demand (No Plumbing Code or Conservation Effects)Plumbing Code Effects OnlyPlumbing Code + Program B20 X 2020 Trend Line20 X 2020 Regulatory Limit

Water System Demand Projections (AFY)

SantaBarbaraCAgovWater22

Water Supply Planning Target

Projected Demand 14000Safety Margin (10) + 1400

Water Supply Target = 15400 AFY

SantaBarbaraCAgovWater23

Water Supply Planning Conceptsbull Planning for 6-Year Critical Drought Periodbull Water Supply Modeling - Using Historical

Data with Current Water Supply Sources and Projected Demands

bull Ongoing Conservation vs Short Term Planned Demand Reductions for Extraordinary Situations

SantaBarbaraCAgovWater24

Water Supply Performance

SantaBarbaraCAgovWater25

SantaBarbaraCAgovWater26

SantaBarbaraCAgovWater27

SantaBarbaraCAgovWater28

Key Policy Issuesbull Achieve 20 x 2020 through BMPs Additional

Conservation Measures amp Recycled Waterbull Planning for a 6-Year Duration Critical Drought

- Manage supplies to avoid use of Desal until year six- Water Banking Purchases- Planned Demand Reductions 10 to 15- Recycled Water Expansion

bull Recycled Water Blending bull Sedimentation Management

SantaBarbaraCAgovWater29

Next Stepsbull Finalize updated Long-Term Water

Supply Plan- April 11 Final Comments from Water

Commission- Environmental Review

bull Prepare Urban Water Management Plan Update per State Requirements

bull Target Adoption Date for LTWSP amp UWMP - June 14 2011

SantaBarbaraCAgovWater30

Discussion amp Feedback

SantaBarbaraCAgovWater31

SantaBarbaraCAgovWater32

SantaBarbaraCAgovWater33

SantaBarbaraCAgovWater34

SantaBarbaraCAgovWater35

SantaBarbaraCAgovWater36

Upper Santa Ynez River Operations Agreement(ldquoPass Through Agreementrdquo)

SantaBarbaraCAgovWater37

Context of 1989 Agreementbull City water supply shortage identified ndash Gibraltar

vulnerable to siltation

bull Solution Raise Gibraltar Dam 20rsquo to 40rsquo

bull Challenges by downstream and environmental interests

bull Cachuma enlargement under consideration

SantaBarbaraCAgovWater38

Parties to the Agreement

bull City of Santa Barbarabull Carpinteria Valley Water Districtbull Goleta Water Districtbull Montecito Water Districtbull Santa Ynez River Water Conservation Districtbull SYRWCD Improvement District No 1

Consent and Acknowledgement by US Bureau of Reclamation

SantaBarbaraCAgovWater39

Pass Through Summer no inflow

Current volume (reflects on-going siltation since 1988)

1988 Reservoir volume

Note different siltation levels

SantaBarbaraCAgovWater40

Smaller Reservoir Spills Sooner1988 Reservoir volume

Current Reservoir volume

SantaBarbaraCAgovWater41

Difference is Stored in Cachuma as Gibraltar WaterBase Reservoir

Actual Reservoir

SantaBarbaraCAgovWater42

  • Long Term Water Supply Plan Adaptive Management
  • Overview
  • Historical Background
  • Historical Background
  • Historical Background
  • Slide Number 6
  • Water Supplies - Cachuma
  • Water Supplies - Cachuma
  • Water Supplies - Gibraltar
  • Water Supplies ndash Mission Tunnel
  • Water Supplies ndash State Water
  • Water Supplies ndash State Water
  • Water Supplies - Groundwater
  • Water Supplies ndash Groundwater
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Recycled Water Blending
  • Water Supplies - Desalination
  • Demand Management
  • Demand Projections
  • Water Supply Planning Target
  • Water Supply Planning Concepts
  • Water Supply Performance
  • Slide Number 25
  • Slide Number 26
  • Slide Number 27
  • Key Policy Issues
  • Next Steps
  • Discussion amp Feedback
  • Slide Number 31
  • Slide Number 32
  • Slide Number 33
  • Slide Number 34
  • Slide Number 35
  • Slide Number 36
  • Context of 1989 Agreement
  • Parties to the Agreement
  • Pass Through Summer no inflow
  • Smaller Reservoir Spills Sooner
  • Difference is Stored in Cachuma as Gibraltar Water
  • Slide Number 42
Detailed Simple
Maximum Capacity () Maximum Capacity (AF) 1980s Current
Lake Cachuma 32 8277 Cachuma 9700 8577
Gibraltar Reservoir 19 5000 Gibraltar 7400 6000
Mission Tunnel 4 1000 Groundwater 4500 4150
State Water Project 12 3000 Recycled Water 800
Groundwater 16 4150 State Water 3000
Recycled Water 3 800 Desalination 3125
Montecito Transfer 1 300 Totals 21600 25652
Desalination 12 3125
100 25652
Lake Cachuma
Gibraltar Reservoir
Mission Tunnel
State Water Project
Groundwater
Recycled Water
Montecito Transfer
Desalination
In our review of the FMP EIREIS we had a small discussion on how to characterize our water supplies in particular State Water In that discussion I commented that the average State Water delivery did not apply to how we did our water supply planning a
The supply target in this analysis is 18200 AFY with a goal of having no shortage greater than 1820 (10) in any year The critical year is 1951 This supply target was developed for us by our Community Development Department for the LTWSP and include
The Cityrsquos supply strategy as modeled is to
use all surface water supply first with a minimum (300 AFY) amount of local groundwater
use available State Water to get us to the supply target
if enough State Water is not available meet the supply target with local groundwater up to 4500 AFY
if that is not enough turn on the desal plant with a goal of having no shortage greater than 1820 AFY in the critical year
The modeling results presented in the first spreadsheet page (LTWSP2002) and the chart shows that our supplies meet the overall production target and satisfy the goal of having a shortage less than 10 in the critical year
In this analysis State Water is an important element in meeting the annual target and the critical year shortage goal The average delivery of State Water is meaningless in this analysis Also with the Cityrsquos approach our average delivery of State Wat
Another important consideration is that the estimates of State Water deliveries based on history result in historical critical periods for the Santa Ynez River and the State Water Project not coinciding I think it is acceptable for one to do this analys
I am not sure where this leaves us with respect to what we put in the FMP EISEIR for our individual water supplies For the City of Santa Barbara input I can give John Gray the bottom line of the spreadsheet with our averages for the 76 year period T
One value of the Cityrsquos approach is that it gives some meaning to the shortages that would happen (or at least are modeled to happen) if the surcharge is not included or other changes to Cachuma Project yield are suggested Our goal again is a shortage
LONG TERM WATER SUPPLY PROGRAM SUPPLY SCENARIO
As estimated by the Santa Ynez River Hydrology Model using 3 ft surcharge and BO fish releases
State Water critical period is moved to coincide with Cachuma critical period
Water Conservation and GW recharge is left out of this version
Includes ground water recovery and 10 safety margin values in acre feet production is 18200 AFY
Filename=LTWSP2002xls SWP
Year Cachuma Desal SWP GibJun GW Recycled Total Shortage
1918 8277 2357 6366 300 900 18200 14300 80
1919 8277 2400 5865 758 900 18200 14300 80
1920 8277 2400 5560 1063 900 18200 14300 80
1921 8277 2400 5483 1140 900 18200 14300 80
1922 8277 2792 5931 300 900 18200 14300 94 094
1923 8277 2894 5829 300 900 18200 14300 99 099
1924 8277 1500 5494 2029 900 18200 14300 50 05
1925 8277 1290 5294 2439 900 18200 14300 43 043
1926 8277 1740 5406 1877 900 18200 14300 58 058
1927 8277 2550 5643 830 900 18200 14300 85 085
1928 8277 2580 5548 895 900 18200 14300 86 086
1929 8277 1680 5425 1918 900 18200 14300 56 056
1930 8232 2250 5330 1488 900 18200 14300 75 057
1931 7306 2010 4673 3311 900 18200 14300 67 042
1932 7857 1950 4713 2780 900 18200 14300 65 044
1933 8277 2010 5451 1562 900 18200 14300 67 038
1934 8277 2640 5347 1036 900 18200 14300 88 033
1935 8277 1950 5528 1545 900 18200 14300 65 065
1936 8277 2460 5544 1019 900 18200 14300 82 082
1937 8277 2220 5797 1006 900 18200 14300 74 074
1938 8277 2613 6110 300 900 18200 14300 94 094
1939 8277 2640 5914 469 900 18200 14300 88 088
1940 8277 2460 5586 977 900 18200 14300 82 082
1941 8277 2318 6405 300 900 18200 14300 97 097
1942 8277 2473 6250 300 900 18200 14300 100 1
1943 8277 2534 6189 300 900 18200 14300 89 089
1944 8277 2639 6084 300 900 18200 14300 92 092
1945 8277 2700 5804 519 900 18200 14300 90 09
1946 8277 2640 5630 753 900 18200 14300 88 088
1947 8277 1710 5427 1886 900 18200 14300 57 075
1948 8277 1260 5236 2527 900 18200 14300 42 067
1949 7856 1604 1320 2021 4500 900 18200 -0 14300 44 065
1950 6760 1564 1140 3336 4500 900 18200 0 14300 38 067
1951 5470 3000 990 500 4500 900 15360 2840 01560380894 14300 33 088
1952 7546 2155 2880 4419 300 900 18200 14300 96 096
1953 8277 323 2700 5700 300 900 18200 14300 90 09
1954 8277 739 2490 5494 300 900 18200 14300 83 083
1955 8277 1222 2070 5431 300 900 18200 14300 69 069
1956 8234 2700 5462 904 900 18200 14300 90 09
1957 7521 2640 5411 1728 900 18200 14300 88 088
1958 7875 2700 5997 728 900 18200 14300 90 09
1959 8277 2640 5921 462 900 18200 14300 88 088
1960 8277 1890 5497 1636 900 18200 14300 63 063
1961 8277 1830 4178 3014 900 18200 14300 61 061
1962 8277 2340 4147 2536 900 18200 14300 78 078
1963 8277 2820 5537 666 900 18200 14300 94 094
1964 8277 2640 5327 1056 900 18200 14300 88 088
1965 8081 2460 5309 1450 900 18200 14300 82 082
1966 8220 2880 5639 561 900 18200 14300 96 096
1967 8277 2827 5896 300 900 18200 14300 96 096
1968 8277 2670 5675 678 900 18200 14300 89 089
1969 8277 2397 6326 300 900 18200 14300 93 093
1970 8277 2670 6036 317 900 18200 14300 89 089
1971 8277 2820 5733 470 900 18200 14300 94 094
1972 8277 2640 5443 940 900 18200 14300 88 088
1973 8277 2460 5747 816 900 18200 14300 82 082
1974 8277 2820 5785 418 900 18200 14300 94 094
1975 8277 2880 5742 401 900 18200 14300 96 096
1976 8277 2640 5515 868 900 18200 14300 88 088
1977 8277 990 5279 2754 900 18200 14300 33 033
1978 8277 2040 6052 931 900 18200 14300 68 068
1979 8277 2550 6171 302 900 18200 14300 85 085
1980 8277 2460 6188 375 900 18200 14300 82 082
1981 8277 2490 6145 388 900 18200 14300 83 083
1982 8277 2735 5988 300 900 18200 14300 94 094
1983 8277 1768 6955 300 900 18200 14300 100 1
1984 8277 2419 6304 300 900 18200 14300 100 1
1985 8277 2872 5851 300 900 18200 14300 96 096
1986 8277 2430 5703 890 900 18200 14300 81 081
1987 8277 2070 5321 1632 900 18200 14300 69 069
1988 8277 1290 5858 1875 900 18200 14300 43 043
1989 7990 1740 5641 1929 900 18200 14300 58 058
1990 6885 2365 1380 2170 4500 900 18200 14300 46 046
1991 6829 2388 870 2713 4500 900 18200 14300 29 029
1992 7997 2213 930 5860 300 900 18200 14300 31 031
1993 8277 1857 6866 300 900 18200 14300 76 076
Average 8122 231 2249 5436 1224 900 18163 769342 088
2241
7470
163592
LONG TERM WATER SUPPLY PROGRAM SUPPLY SCENARIO
As estimated by the Santa Ynez River Hydrology Model using 3 ft surcharge and BO fish releases
State Water deliveries are based on delivery estimates provided by CCWA in 2001
Water Conservation and GW recharge is left out of this version
Includes ground water recovery and 10 safety margin values in acre feet production is 18200 AFY
Filename=LTWSP2002xls SWP
Year Cachuma Desal SWP GibJun GW Recycled Total Shortage
1918 8277 2357 6366 300 900 18200 14300 80
1919 8277 2400 5865 758 900 18200 14300 80
1920 8277 2400 5560 1063 900 18200 14300 80
1921 8277 2400 5483 1140 900 18200 14300 80
1922 8277 2792 5931 300 900 18200 14300 94 094
1923 8277 2894 5829 300 900 18200 14300 99 099
1924 8277 1500 5494 2029 900 18200 14300 50 05
1925 8277 1290 5294 2439 900 18200 14300 43 043
1926 8277 1740 5406 1877 900 18200 14300 58 058
1927 8277 2550 5643 830 900 18200 14300 85 085
1928 8277 2580 5548 895 900 18200 14300 86 086
1929 8277 1680 5425 1918 900 18200 14300 56 056
1930 8232 1710 5330 2028 900 18200 14300 57 057
1931 7306 1260 4673 4061 900 18200 14300 42 042
1932 7857 1320 4713 3410 900 18200 14300 44 044
1933 8277 1140 5451 2432 900 18200 14300 38 038
1934 8277 990 5347 2686 900 18200 14300 33 033
1935 8277 1950 5528 1545 900 18200 14300 65 065
1936 8277 2460 5544 1019 900 18200 14300 82 082
1937 8277 2220 5797 1006 900 18200 14300 74 074
1938 8277 2613 6110 300 900 18200 14300 94 094
1939 8277 2640 5914 469 900 18200 14300 88 088
1940 8277 2460 5586 977 900 18200 14300 82 082
1941 8277 2318 6405 300 900 18200 14300 97 097
1942 8277 2473 6250 300 900 18200 14300 100 1
1943 8277 2534 6189 300 900 18200 14300 89 089
1944 8277 2639 6084 300 900 18200 14300 92 092
1945 8277 2700 5804 519 900 18200 14300 90 09
1946 8277 2640 5630 753 900 18200 14300 88 088
1947 8277 2250 5427 1346 900 18200 14300 75 075
1948 8277 2010 5236 1777 900 18200 14300 67 067
1949 7856 974 1950 2021 4500 900 18200 14300 65 065
1950 6760 694 2010 3336 4500 900 18200 14300 67 067
1951 5470 3000 2640 500 4500 900 17010 1190 00653787487 14300 88 088
1952 7546 2155 2880 4419 300 900 18200 14300 96 096
1953 8277 323 2700 5700 300 900 18200 14300 90 09
1954 8277 739 2490 5494 300 900 18200 14300 83 083
1955 8277 1222 2070 5431 300 900 18200 14300 69 069
1956 8234 2700 5462 904 900 18200 14300 90 09
1957 7521 2640 5411 1728 900 18200 14300 88 088
1958 7875 2700 5997 728 900 18200 14300 90 09
1959 8277 2640 5921 462 900 18200 14300 88 088
1960 8277 1890 5497 1636 900 18200 14300 63 063
1961 8277 1830 4178 3014 900 18200 14300 61 061
1962 8277 2340 4147 2536 900 18200 14300 78 078
1963 8277 2820 5537 666 900 18200 14300 94 094
1964 8277 2640 5327 1056 900 18200 14300 88 088
1965 8081 2460 5309 1450 900 18200 14300 82 082
1966 8220 2880 5639 561 900 18200 14300 96 096
1967 8277 2827 5896 300 900 18200 14300 96 096
1968 8277 2670 5675 678 900 18200 14300 89 089
1969 8277 2397 6326 300 900 18200 14300 93 093
1970 8277 2670 6036 317 900 18200 14300 89 089
1971 8277 2820 5733 470 900 18200 14300 94 094
1972 8277 2640 5443 940 900 18200 14300 88 088
1973 8277 2460 5747 816 900 18200 14300 82 082
1974 8277 2820 5785 418 900 18200 14300 94 094
1975 8277 2880 5742 401 900 18200 14300 96 096
1976 8277 2640 5515 868 900 18200 14300 88 088
1977 8277 990 5279 2754 900 18200 14300 33 033
1978 8277 2040 6052 931 900 18200 14300 68 068
1979 8277 2550 6171 302 900 18200 14300 85 085
1980 8277 2460 6188 375 900 18200 14300 82 082
1981 8277 2490 6145 388 900 18200 14300 83 083
1982 8277 2735 5988 300 900 18200 14300 94 094
1983 8277 1768 6955 300 900 18200 14300 100 1
1984 8277 2419 6304 300 900 18200 14300 100 1
1985 8277 2872 5851 300 900 18200 14300 96 096
1986 8277 2430 5703 890 900 18200 14300 81 081
1987 8277 2070 5321 1632 900 18200 14300 69 069
1988 8277 1290 5858 1875 900 18200 14300 43 043
1989 7990 1740 5641 1929 900 18200 14300 58 058
1990 6885 2365 1380 2170 4500 900 18200 14300 46 046
1991 6829 2388 870 2713 4500 900 18200 14300 29 029
1992 7997 2213 930 5860 300 900 18200 14300 31 031
1993 8277 1857 6866 300 900 18200 14300 76 076
Average 8122 211 2249 5436 1266 900 18184 769342 088
2241
7470
163592
1918 1918 1918 1918 1918 1918 1918
1919 1919 1919 1919 1919 1919 1919
1920 1920 1920 1920 1920 1920 1920
1921 1921 1921 1921 1921 1921 1921
1922 1922 1922 1922 1922 1922 1922
1923 1923 1923 1923 1923 1923 1923
1924 1924 1924 1924 1924 1924 1924
1925 1925 1925 1925 1925 1925 1925
1926 1926 1926 1926 1926 1926 1926
1927 1927 1927 1927 1927 1927 1927
1928 1928 1928 1928 1928 1928 1928
1929 1929 1929 1929 1929 1929 1929
1930 1930 1930 1930 1930 1930 1930
1931 1931 1931 1931 1931 1931 1931
1932 1932 1932 1932 1932 1932 1932
1933 1933 1933 1933 1933 1933 1933
1934 1934 1934 1934 1934 1934 1934
1935 1935 1935 1935 1935 1935 1935
1936 1936 1936 1936 1936 1936 1936
1937 1937 1937 1937 1937 1937 1937
1938 1938 1938 1938 1938 1938 1938
1939 1939 1939 1939 1939 1939 1939
1940 1940 1940 1940 1940 1940 1940
1941 1941 1941 1941 1941 1941 1941
1942 1942 1942 1942 1942 1942 1942
1943 1943 1943 1943 1943 1943 1943
1944 1944 1944 1944 1944 1944 1944
1945 1945 1945 1945 1945 1945 1945
1946 1946 1946 1946 1946 1946 1946
1947 1947 1947 1947 1947 1947 1947
1948 1948 1948 1948 1948 1948 1948
1949 1949 1949 1949 1949 1949 1949
1950 1950 1950 1950 1950 1950 1950
1951 1951 1951 1951 1951 1951 1951
1952 1952 1952 1952 1952 1952 1952
1953 1953 1953 1953 1953 1953 1953
1954 1954 1954 1954 1954 1954 1954
1955 1955 1955 1955 1955 1955 1955
1956 1956 1956 1956 1956 1956 1956
1957 1957 1957 1957 1957 1957 1957
1958 1958 1958 1958 1958 1958 1958
1959 1959 1959 1959 1959 1959 1959
1960 1960 1960 1960 1960 1960 1960
1961 1961 1961 1961 1961 1961 1961
1962 1962 1962 1962 1962 1962 1962
1963 1963 1963 1963 1963 1963 1963
1964 1964 1964 1964 1964 1964 1964
1965 1965 1965 1965 1965 1965 1965
1966 1966 1966 1966 1966 1966 1966
1967 1967 1967 1967 1967 1967 1967
1968 1968 1968 1968 1968 1968 1968
1969 1969 1969 1969 1969 1969 1969
1970 1970 1970 1970 1970 1970 1970
1971 1971 1971 1971 1971 1971 1971
1972 1972 1972 1972 1972 1972 1972
1973 1973 1973 1973 1973 1973 1973
1974 1974 1974 1974 1974 1974 1974
1975 1975 1975 1975 1975 1975 1975
1976 1976 1976 1976 1976 1976 1976
1977 1977 1977 1977 1977 1977 1977
1978 1978 1978 1978 1978 1978 1978
1979 1979 1979 1979 1979 1979 1979
1980 1980 1980 1980 1980 1980 1980
1981 1981 1981 1981 1981 1981 1981
1982 1982 1982 1982 1982 1982 1982
1983 1983 1983 1983 1983 1983 1983
1984 1984 1984 1984 1984 1984 1984
1985 1985 1985 1985 1985 1985 1985
1986 1986 1986 1986 1986 1986 1986
1987 1987 1987 1987 1987 1987 1987
1988 1988 1988 1988 1988 1988 1988
1989 1989 1989 1989 1989 1989 1989
1990 1990 1990 1990 1990 1990 1990
1991 1991 1991 1991 1991 1991 1991
1992 1992 1992 1992 1992 1992 1992
1993 1993 1993 1993 1993 1993 1993
Cachuma
Gibraltar
Groundwater
Recycled Water
State Water
Desalination
Page 16: PUBLIC WORKS DEPARTMENT WATER RESOURCES DIVISION …...mountain • Supply ranges from ... Water Supplies –State Water • A small, but useful part of our water supply • Both the

ltwspCht

ampA
Page ampP
Recycled
Cachuma
Gib etc
SWP
GW
Desal
Shortage
Water Supply (AF)
Figure 1 Long-Term Water Supply ProgramUpdated to include surchararge fish releases and 1990 drought
900
82773366
6366
23566634
300
900
82773366
5865
2400
7576634
900
82773366
5560
2400
10626634
900
82773366
5483
2400
11396634
900
82773366
5931
27916634
300
900
82773366
5829
28936634
300
900
82773366
5494
1500
20286634
900
82773366
5294
1290
24386634
900
82773366
5406
1740
18766634
900
82773366
5643
2550
8296634
900
82773366
5548
2580
8946634
900
82773366
5425
1680
19176634
900
8231514135
5330
1710
2028485865
900
7305562347
4673246
1260
4061191653
900
7856777469
471278
1320
3410442531
900
82773366
5451
1140
24316634
900
82773366
5347
990
26856634
900
82773366
5528
1950
15446634
900
82773366
5544
2460
10186634
900
82773366
5797
2220
10056634
900
82773366
6110
26126634
300
900
82773366
5914
2640
4686634
900
82773366
5586
2460
9766634
900
82773366
6405
23176634
300
900
82773366
6250
24726634
300
900
82773366
6189
25336634
300
900
82773366
6084
26386634
300
900
82773366
5804
2700
5186634
900
82773366
5630
2640
7526634
900
82773366
5427
2250
13456634
900
82773366
5236
2010
17766634
900
7855786017
2020508
1950
4500
974
900
6759906438
3335608
2010
4500
694485562
900
547040079
500
2640
4500
3000
1189893227
900
7545802755
441926
2880
300
2155
900
82773366
5700
2700
300
323
900
82773366
5494
2490
300
739
900
82773366
5431
2070
300
1222
900
8233699836
5462
2700
904300164
900
7520604423
5411
2640
1728395577
900
787483284
5997
2700
72816716
900
82773366
5921
2640
4616634
900
82773366
5497
1890
16356634
900
82773366
4178353
1830
30143104
900
82773366
4147065
2340
25355984
900
82773366
5537
2820
6656634
900
82773366
5327
2640
10556634
900
8080887468
5309
2460
1450112532
900
8219636025
5639
2880
561363975
900
82773366
5896
28266634
300
900
82773366
5675
2670
6776634
900
82773366
6326
23966634
300
900
82773366
6036
2670
3166634
900
82773366
5733
2820
4696634
900
82773366
5443
2640
9396634
900
82773366
5747
2460
8156634
900
82773366
5785
2820
4176634
900
82773366
5742
2880
4006634
900
82773366
5515
2640
8676634
900
82773366
5279
990
27536634
900
82773366
6052
2040
9306634
900
82773366
6171
2550
3016634
900
82773366
6188
2460
3746634
900
82773366
6145
2490
3876634
900
82773366
5988
27346634
300
900
82773366
6955
17676634
300
900
82773366
6304
24186634
300
900
82773366
5851
28716634
300
900
82773366
5703
2430
8896634
900
82773366
5321
2070
16316634
900
82773366
5858
1290
18746634
900
7990356312
5641
1740
1928643688
900
6885154509
2170335
1380
4500
2364510491
900
682933383
271296
870
4500
238770617
900
7997267505
5860
930
300
2213
900
82773366
6866
18566634
300

LTWSP2002

LTWSP2002 (coincide)

Text of Accompanying Email

Chart1

Maximum Capacity (AF)
8277
5000
1000
3000
4150
800
300
3125

Pie Chart Data

Pie Chart Data

Cachuma8277 AF
Gibraltar6000 AF
Groundwater4150 AF
State Water3000 AF
Recycled800 AF
Desalination3125 AF
Current
Current Water Supply(AF of Capacity)
Gibraltar7400 AF
Cachuma9700 AF
Groundwater4500 AF
1980s
1980s Water Supply(AF of Capacity)

SantaBarbaraCAgovWater6

City of Santa Barbara Water Demand(Acre Feet of Production by Calendar Year - Potable + Recycled)

0

2500

5000

7500

10000

12500

15000

17500

20000

1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010

Figure ___

Total System Production (AF)

12 Months Ending

13374

February 28 2011

Post-DroughtPre-Drought Drought

SantaBarbaraCAgovWater7

Water Supplies - Cachumabull Primary City

Water Supply

bull Multi-Year SourceA few dry years notan issue

bull 8277 AFYCurrent Entitlement

bull 7863 AFYProjected Entitlement (2030)

SantaBarbaraCAgovWater8

Water Supplies - Cachuma

0

50000

100000

150000

200000

250000

1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011Water Year

Historical StorageVolumes1987-1993 Period

Recent History of Lake Cachuma Storage Levels (AF)With 1987-1993 Period Shown for Comparison

Figure ____

SantaBarbaraCAgovWater9

Water Supplies - Gibraltarbull ldquoPass Throughrdquo

implementationin progress

bull Modelingunder review

bull Conservative planning assumptions used pending modeling results

bull Sedimentation management study planned

SantaBarbaraCAgovWater10

Water Supplies ndash Mission Tunnelbull Infiltration from

percolating groundwateron both sides of themountain

bull Supply ranges from500 to 2375 AFY

bull Average contribution1125 AFY

SantaBarbaraCAgovWater11

Water Supplies ndash State Waterbull A small but useful part of our water

supply

bull Both the water amp the pipeline have value

bull Cityrsquos maximum delivery amount - 3300 AFY

bull Deliveries subject to availability

SantaBarbaraCAgovWater12

Water Supplies ndash State Waterbull Projections based on DWR

modeling using long-term databull No Delta or storage

improvementsbull Environmental limits remain in

effectbull Climate change effects assumed

SantaBarbaraCAgovWater13

Water Supplies - Groundwater

SantaBarbaraCAgovWater14

Water Supplies ndash Groundwaterbull Pumping occurs in

Downtown amp OuterState Street areas

bull 1300 AFY safe yieldbull Average City pumping

assumed at ~1100 AFYbull Maximum of 4150 AFY during drought

Ortega Groundwater Treatment Plant

SantaBarbaraCAgovWater15

Water Supplies ndash Recycled WaterRecycled Water Distribution System

SantaBarbaraCAgovWater16

Water Supplies ndash Recycled Waterbull Displaces use of potable

water amp extends water supplybull Current connected

demand 800 AFYbull 300 AFY potential demand amp capacity identifiedbull Target demand 1100 AFYbull Blending an economical solution for reducing mineral

contentbull Policy issues related to blending

SantaBarbaraCAgovWater17

Water Supplies ndash Recycled Water

SantaBarbaraCAgovWater18

Recycled Water Blending bull Filterability (turbidity) - solution identifiedbull Mineral Content (salts) separate issue -

- Blending $180AF added operating cost- MFRO $341AF added cost + $46 million

capitalbull Proposed Policy ldquoContingency Plan to

eliminate blending with goal to be ready to implement plan based on economic regulatory or water supply requirementsrdquo

SantaBarbaraCAgovWater19

Water Supplies - Desalination

bull Reliable butexpensive source

bull $177 million toreactivate if needed

bull Important to keepfor use in case ofextended drought

bull Proposed Planning Goal Avoid use until year six of Critical Drought Period

SantaBarbaraCAgovWater20

Demand Managementbull Declining demand

- Best Management Practices (CUWCC)- Conservation Program- 20 x 2020- Plumbing Code amp Appliance Standards

bull Projected development - 800 to 900 AFY bull Water Conservation Technical Evaluation

SantaBarbaraCAgovWater21

Demand Projections

12000

12500

13000

13500

14000

14500

15000

2010 2012 2014 2016 2018 2020 2022 2024 2026 2028 2030

Plan SB Demand (No Plumbing Code or Conservation Effects)Plumbing Code Effects OnlyPlumbing Code + Program B20 X 2020 Trend Line20 X 2020 Regulatory Limit

Water System Demand Projections (AFY)

SantaBarbaraCAgovWater22

Water Supply Planning Target

Projected Demand 14000Safety Margin (10) + 1400

Water Supply Target = 15400 AFY

SantaBarbaraCAgovWater23

Water Supply Planning Conceptsbull Planning for 6-Year Critical Drought Periodbull Water Supply Modeling - Using Historical

Data with Current Water Supply Sources and Projected Demands

bull Ongoing Conservation vs Short Term Planned Demand Reductions for Extraordinary Situations

SantaBarbaraCAgovWater24

Water Supply Performance

SantaBarbaraCAgovWater25

SantaBarbaraCAgovWater26

SantaBarbaraCAgovWater27

SantaBarbaraCAgovWater28

Key Policy Issuesbull Achieve 20 x 2020 through BMPs Additional

Conservation Measures amp Recycled Waterbull Planning for a 6-Year Duration Critical Drought

- Manage supplies to avoid use of Desal until year six- Water Banking Purchases- Planned Demand Reductions 10 to 15- Recycled Water Expansion

bull Recycled Water Blending bull Sedimentation Management

SantaBarbaraCAgovWater29

Next Stepsbull Finalize updated Long-Term Water

Supply Plan- April 11 Final Comments from Water

Commission- Environmental Review

bull Prepare Urban Water Management Plan Update per State Requirements

bull Target Adoption Date for LTWSP amp UWMP - June 14 2011

SantaBarbaraCAgovWater30

Discussion amp Feedback

SantaBarbaraCAgovWater31

SantaBarbaraCAgovWater32

SantaBarbaraCAgovWater33

SantaBarbaraCAgovWater34

SantaBarbaraCAgovWater35

SantaBarbaraCAgovWater36

Upper Santa Ynez River Operations Agreement(ldquoPass Through Agreementrdquo)

SantaBarbaraCAgovWater37

Context of 1989 Agreementbull City water supply shortage identified ndash Gibraltar

vulnerable to siltation

bull Solution Raise Gibraltar Dam 20rsquo to 40rsquo

bull Challenges by downstream and environmental interests

bull Cachuma enlargement under consideration

SantaBarbaraCAgovWater38

Parties to the Agreement

bull City of Santa Barbarabull Carpinteria Valley Water Districtbull Goleta Water Districtbull Montecito Water Districtbull Santa Ynez River Water Conservation Districtbull SYRWCD Improvement District No 1

Consent and Acknowledgement by US Bureau of Reclamation

SantaBarbaraCAgovWater39

Pass Through Summer no inflow

Current volume (reflects on-going siltation since 1988)

1988 Reservoir volume

Note different siltation levels

SantaBarbaraCAgovWater40

Smaller Reservoir Spills Sooner1988 Reservoir volume

Current Reservoir volume

SantaBarbaraCAgovWater41

Difference is Stored in Cachuma as Gibraltar WaterBase Reservoir

Actual Reservoir

SantaBarbaraCAgovWater42

  • Long Term Water Supply Plan Adaptive Management
  • Overview
  • Historical Background
  • Historical Background
  • Historical Background
  • Slide Number 6
  • Water Supplies - Cachuma
  • Water Supplies - Cachuma
  • Water Supplies - Gibraltar
  • Water Supplies ndash Mission Tunnel
  • Water Supplies ndash State Water
  • Water Supplies ndash State Water
  • Water Supplies - Groundwater
  • Water Supplies ndash Groundwater
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Recycled Water Blending
  • Water Supplies - Desalination
  • Demand Management
  • Demand Projections
  • Water Supply Planning Target
  • Water Supply Planning Concepts
  • Water Supply Performance
  • Slide Number 25
  • Slide Number 26
  • Slide Number 27
  • Key Policy Issues
  • Next Steps
  • Discussion amp Feedback
  • Slide Number 31
  • Slide Number 32
  • Slide Number 33
  • Slide Number 34
  • Slide Number 35
  • Slide Number 36
  • Context of 1989 Agreement
  • Parties to the Agreement
  • Pass Through Summer no inflow
  • Smaller Reservoir Spills Sooner
  • Difference is Stored in Cachuma as Gibraltar Water
  • Slide Number 42
Detailed Simple
Maximum Capacity () Maximum Capacity (AF) 1980s Current
Lake Cachuma 32 8277 Cachuma 9700 8577
Gibraltar Reservoir 19 5000 Gibraltar 7400 6000
Mission Tunnel 4 1000 Groundwater 4500 4150
State Water Project 12 3000 Recycled Water 800
Groundwater 16 4150 State Water 3000
Recycled Water 3 800 Desalination 3125
Montecito Transfer 1 300 Totals 21600 25652
Desalination 12 3125
100 25652
Lake Cachuma
Gibraltar Reservoir
Mission Tunnel
State Water Project
Groundwater
Recycled Water
Montecito Transfer
Desalination
In our review of the FMP EIREIS we had a small discussion on how to characterize our water supplies in particular State Water In that discussion I commented that the average State Water delivery did not apply to how we did our water supply planning a
The supply target in this analysis is 18200 AFY with a goal of having no shortage greater than 1820 (10) in any year The critical year is 1951 This supply target was developed for us by our Community Development Department for the LTWSP and include
The Cityrsquos supply strategy as modeled is to
use all surface water supply first with a minimum (300 AFY) amount of local groundwater
use available State Water to get us to the supply target
if enough State Water is not available meet the supply target with local groundwater up to 4500 AFY
if that is not enough turn on the desal plant with a goal of having no shortage greater than 1820 AFY in the critical year
The modeling results presented in the first spreadsheet page (LTWSP2002) and the chart shows that our supplies meet the overall production target and satisfy the goal of having a shortage less than 10 in the critical year
In this analysis State Water is an important element in meeting the annual target and the critical year shortage goal The average delivery of State Water is meaningless in this analysis Also with the Cityrsquos approach our average delivery of State Wat
Another important consideration is that the estimates of State Water deliveries based on history result in historical critical periods for the Santa Ynez River and the State Water Project not coinciding I think it is acceptable for one to do this analys
I am not sure where this leaves us with respect to what we put in the FMP EISEIR for our individual water supplies For the City of Santa Barbara input I can give John Gray the bottom line of the spreadsheet with our averages for the 76 year period T
One value of the Cityrsquos approach is that it gives some meaning to the shortages that would happen (or at least are modeled to happen) if the surcharge is not included or other changes to Cachuma Project yield are suggested Our goal again is a shortage
LONG TERM WATER SUPPLY PROGRAM SUPPLY SCENARIO
As estimated by the Santa Ynez River Hydrology Model using 3 ft surcharge and BO fish releases
State Water critical period is moved to coincide with Cachuma critical period
Water Conservation and GW recharge is left out of this version
Includes ground water recovery and 10 safety margin values in acre feet production is 18200 AFY
Filename=LTWSP2002xls SWP
Year Cachuma Desal SWP GibJun GW Recycled Total Shortage
1918 8277 2357 6366 300 900 18200 14300 80
1919 8277 2400 5865 758 900 18200 14300 80
1920 8277 2400 5560 1063 900 18200 14300 80
1921 8277 2400 5483 1140 900 18200 14300 80
1922 8277 2792 5931 300 900 18200 14300 94 094
1923 8277 2894 5829 300 900 18200 14300 99 099
1924 8277 1500 5494 2029 900 18200 14300 50 05
1925 8277 1290 5294 2439 900 18200 14300 43 043
1926 8277 1740 5406 1877 900 18200 14300 58 058
1927 8277 2550 5643 830 900 18200 14300 85 085
1928 8277 2580 5548 895 900 18200 14300 86 086
1929 8277 1680 5425 1918 900 18200 14300 56 056
1930 8232 2250 5330 1488 900 18200 14300 75 057
1931 7306 2010 4673 3311 900 18200 14300 67 042
1932 7857 1950 4713 2780 900 18200 14300 65 044
1933 8277 2010 5451 1562 900 18200 14300 67 038
1934 8277 2640 5347 1036 900 18200 14300 88 033
1935 8277 1950 5528 1545 900 18200 14300 65 065
1936 8277 2460 5544 1019 900 18200 14300 82 082
1937 8277 2220 5797 1006 900 18200 14300 74 074
1938 8277 2613 6110 300 900 18200 14300 94 094
1939 8277 2640 5914 469 900 18200 14300 88 088
1940 8277 2460 5586 977 900 18200 14300 82 082
1941 8277 2318 6405 300 900 18200 14300 97 097
1942 8277 2473 6250 300 900 18200 14300 100 1
1943 8277 2534 6189 300 900 18200 14300 89 089
1944 8277 2639 6084 300 900 18200 14300 92 092
1945 8277 2700 5804 519 900 18200 14300 90 09
1946 8277 2640 5630 753 900 18200 14300 88 088
1947 8277 1710 5427 1886 900 18200 14300 57 075
1948 8277 1260 5236 2527 900 18200 14300 42 067
1949 7856 1604 1320 2021 4500 900 18200 -0 14300 44 065
1950 6760 1564 1140 3336 4500 900 18200 0 14300 38 067
1951 5470 3000 990 500 4500 900 15360 2840 01560380894 14300 33 088
1952 7546 2155 2880 4419 300 900 18200 14300 96 096
1953 8277 323 2700 5700 300 900 18200 14300 90 09
1954 8277 739 2490 5494 300 900 18200 14300 83 083
1955 8277 1222 2070 5431 300 900 18200 14300 69 069
1956 8234 2700 5462 904 900 18200 14300 90 09
1957 7521 2640 5411 1728 900 18200 14300 88 088
1958 7875 2700 5997 728 900 18200 14300 90 09
1959 8277 2640 5921 462 900 18200 14300 88 088
1960 8277 1890 5497 1636 900 18200 14300 63 063
1961 8277 1830 4178 3014 900 18200 14300 61 061
1962 8277 2340 4147 2536 900 18200 14300 78 078
1963 8277 2820 5537 666 900 18200 14300 94 094
1964 8277 2640 5327 1056 900 18200 14300 88 088
1965 8081 2460 5309 1450 900 18200 14300 82 082
1966 8220 2880 5639 561 900 18200 14300 96 096
1967 8277 2827 5896 300 900 18200 14300 96 096
1968 8277 2670 5675 678 900 18200 14300 89 089
1969 8277 2397 6326 300 900 18200 14300 93 093
1970 8277 2670 6036 317 900 18200 14300 89 089
1971 8277 2820 5733 470 900 18200 14300 94 094
1972 8277 2640 5443 940 900 18200 14300 88 088
1973 8277 2460 5747 816 900 18200 14300 82 082
1974 8277 2820 5785 418 900 18200 14300 94 094
1975 8277 2880 5742 401 900 18200 14300 96 096
1976 8277 2640 5515 868 900 18200 14300 88 088
1977 8277 990 5279 2754 900 18200 14300 33 033
1978 8277 2040 6052 931 900 18200 14300 68 068
1979 8277 2550 6171 302 900 18200 14300 85 085
1980 8277 2460 6188 375 900 18200 14300 82 082
1981 8277 2490 6145 388 900 18200 14300 83 083
1982 8277 2735 5988 300 900 18200 14300 94 094
1983 8277 1768 6955 300 900 18200 14300 100 1
1984 8277 2419 6304 300 900 18200 14300 100 1
1985 8277 2872 5851 300 900 18200 14300 96 096
1986 8277 2430 5703 890 900 18200 14300 81 081
1987 8277 2070 5321 1632 900 18200 14300 69 069
1988 8277 1290 5858 1875 900 18200 14300 43 043
1989 7990 1740 5641 1929 900 18200 14300 58 058
1990 6885 2365 1380 2170 4500 900 18200 14300 46 046
1991 6829 2388 870 2713 4500 900 18200 14300 29 029
1992 7997 2213 930 5860 300 900 18200 14300 31 031
1993 8277 1857 6866 300 900 18200 14300 76 076
Average 8122 231 2249 5436 1224 900 18163 769342 088
2241
7470
163592
LONG TERM WATER SUPPLY PROGRAM SUPPLY SCENARIO
As estimated by the Santa Ynez River Hydrology Model using 3 ft surcharge and BO fish releases
State Water deliveries are based on delivery estimates provided by CCWA in 2001
Water Conservation and GW recharge is left out of this version
Includes ground water recovery and 10 safety margin values in acre feet production is 18200 AFY
Filename=LTWSP2002xls SWP
Year Cachuma Desal SWP GibJun GW Recycled Total Shortage
1918 8277 2357 6366 300 900 18200 14300 80
1919 8277 2400 5865 758 900 18200 14300 80
1920 8277 2400 5560 1063 900 18200 14300 80
1921 8277 2400 5483 1140 900 18200 14300 80
1922 8277 2792 5931 300 900 18200 14300 94 094
1923 8277 2894 5829 300 900 18200 14300 99 099
1924 8277 1500 5494 2029 900 18200 14300 50 05
1925 8277 1290 5294 2439 900 18200 14300 43 043
1926 8277 1740 5406 1877 900 18200 14300 58 058
1927 8277 2550 5643 830 900 18200 14300 85 085
1928 8277 2580 5548 895 900 18200 14300 86 086
1929 8277 1680 5425 1918 900 18200 14300 56 056
1930 8232 1710 5330 2028 900 18200 14300 57 057
1931 7306 1260 4673 4061 900 18200 14300 42 042
1932 7857 1320 4713 3410 900 18200 14300 44 044
1933 8277 1140 5451 2432 900 18200 14300 38 038
1934 8277 990 5347 2686 900 18200 14300 33 033
1935 8277 1950 5528 1545 900 18200 14300 65 065
1936 8277 2460 5544 1019 900 18200 14300 82 082
1937 8277 2220 5797 1006 900 18200 14300 74 074
1938 8277 2613 6110 300 900 18200 14300 94 094
1939 8277 2640 5914 469 900 18200 14300 88 088
1940 8277 2460 5586 977 900 18200 14300 82 082
1941 8277 2318 6405 300 900 18200 14300 97 097
1942 8277 2473 6250 300 900 18200 14300 100 1
1943 8277 2534 6189 300 900 18200 14300 89 089
1944 8277 2639 6084 300 900 18200 14300 92 092
1945 8277 2700 5804 519 900 18200 14300 90 09
1946 8277 2640 5630 753 900 18200 14300 88 088
1947 8277 2250 5427 1346 900 18200 14300 75 075
1948 8277 2010 5236 1777 900 18200 14300 67 067
1949 7856 974 1950 2021 4500 900 18200 14300 65 065
1950 6760 694 2010 3336 4500 900 18200 14300 67 067
1951 5470 3000 2640 500 4500 900 17010 1190 00653787487 14300 88 088
1952 7546 2155 2880 4419 300 900 18200 14300 96 096
1953 8277 323 2700 5700 300 900 18200 14300 90 09
1954 8277 739 2490 5494 300 900 18200 14300 83 083
1955 8277 1222 2070 5431 300 900 18200 14300 69 069
1956 8234 2700 5462 904 900 18200 14300 90 09
1957 7521 2640 5411 1728 900 18200 14300 88 088
1958 7875 2700 5997 728 900 18200 14300 90 09
1959 8277 2640 5921 462 900 18200 14300 88 088
1960 8277 1890 5497 1636 900 18200 14300 63 063
1961 8277 1830 4178 3014 900 18200 14300 61 061
1962 8277 2340 4147 2536 900 18200 14300 78 078
1963 8277 2820 5537 666 900 18200 14300 94 094
1964 8277 2640 5327 1056 900 18200 14300 88 088
1965 8081 2460 5309 1450 900 18200 14300 82 082
1966 8220 2880 5639 561 900 18200 14300 96 096
1967 8277 2827 5896 300 900 18200 14300 96 096
1968 8277 2670 5675 678 900 18200 14300 89 089
1969 8277 2397 6326 300 900 18200 14300 93 093
1970 8277 2670 6036 317 900 18200 14300 89 089
1971 8277 2820 5733 470 900 18200 14300 94 094
1972 8277 2640 5443 940 900 18200 14300 88 088
1973 8277 2460 5747 816 900 18200 14300 82 082
1974 8277 2820 5785 418 900 18200 14300 94 094
1975 8277 2880 5742 401 900 18200 14300 96 096
1976 8277 2640 5515 868 900 18200 14300 88 088
1977 8277 990 5279 2754 900 18200 14300 33 033
1978 8277 2040 6052 931 900 18200 14300 68 068
1979 8277 2550 6171 302 900 18200 14300 85 085
1980 8277 2460 6188 375 900 18200 14300 82 082
1981 8277 2490 6145 388 900 18200 14300 83 083
1982 8277 2735 5988 300 900 18200 14300 94 094
1983 8277 1768 6955 300 900 18200 14300 100 1
1984 8277 2419 6304 300 900 18200 14300 100 1
1985 8277 2872 5851 300 900 18200 14300 96 096
1986 8277 2430 5703 890 900 18200 14300 81 081
1987 8277 2070 5321 1632 900 18200 14300 69 069
1988 8277 1290 5858 1875 900 18200 14300 43 043
1989 7990 1740 5641 1929 900 18200 14300 58 058
1990 6885 2365 1380 2170 4500 900 18200 14300 46 046
1991 6829 2388 870 2713 4500 900 18200 14300 29 029
1992 7997 2213 930 5860 300 900 18200 14300 31 031
1993 8277 1857 6866 300 900 18200 14300 76 076
Average 8122 211 2249 5436 1266 900 18184 769342 088
2241
7470
163592
1918 1918 1918 1918 1918 1918 1918
1919 1919 1919 1919 1919 1919 1919
1920 1920 1920 1920 1920 1920 1920
1921 1921 1921 1921 1921 1921 1921
1922 1922 1922 1922 1922 1922 1922
1923 1923 1923 1923 1923 1923 1923
1924 1924 1924 1924 1924 1924 1924
1925 1925 1925 1925 1925 1925 1925
1926 1926 1926 1926 1926 1926 1926
1927 1927 1927 1927 1927 1927 1927
1928 1928 1928 1928 1928 1928 1928
1929 1929 1929 1929 1929 1929 1929
1930 1930 1930 1930 1930 1930 1930
1931 1931 1931 1931 1931 1931 1931
1932 1932 1932 1932 1932 1932 1932
1933 1933 1933 1933 1933 1933 1933
1934 1934 1934 1934 1934 1934 1934
1935 1935 1935 1935 1935 1935 1935
1936 1936 1936 1936 1936 1936 1936
1937 1937 1937 1937 1937 1937 1937
1938 1938 1938 1938 1938 1938 1938
1939 1939 1939 1939 1939 1939 1939
1940 1940 1940 1940 1940 1940 1940
1941 1941 1941 1941 1941 1941 1941
1942 1942 1942 1942 1942 1942 1942
1943 1943 1943 1943 1943 1943 1943
1944 1944 1944 1944 1944 1944 1944
1945 1945 1945 1945 1945 1945 1945
1946 1946 1946 1946 1946 1946 1946
1947 1947 1947 1947 1947 1947 1947
1948 1948 1948 1948 1948 1948 1948
1949 1949 1949 1949 1949 1949 1949
1950 1950 1950 1950 1950 1950 1950
1951 1951 1951 1951 1951 1951 1951
1952 1952 1952 1952 1952 1952 1952
1953 1953 1953 1953 1953 1953 1953
1954 1954 1954 1954 1954 1954 1954
1955 1955 1955 1955 1955 1955 1955
1956 1956 1956 1956 1956 1956 1956
1957 1957 1957 1957 1957 1957 1957
1958 1958 1958 1958 1958 1958 1958
1959 1959 1959 1959 1959 1959 1959
1960 1960 1960 1960 1960 1960 1960
1961 1961 1961 1961 1961 1961 1961
1962 1962 1962 1962 1962 1962 1962
1963 1963 1963 1963 1963 1963 1963
1964 1964 1964 1964 1964 1964 1964
1965 1965 1965 1965 1965 1965 1965
1966 1966 1966 1966 1966 1966 1966
1967 1967 1967 1967 1967 1967 1967
1968 1968 1968 1968 1968 1968 1968
1969 1969 1969 1969 1969 1969 1969
1970 1970 1970 1970 1970 1970 1970
1971 1971 1971 1971 1971 1971 1971
1972 1972 1972 1972 1972 1972 1972
1973 1973 1973 1973 1973 1973 1973
1974 1974 1974 1974 1974 1974 1974
1975 1975 1975 1975 1975 1975 1975
1976 1976 1976 1976 1976 1976 1976
1977 1977 1977 1977 1977 1977 1977
1978 1978 1978 1978 1978 1978 1978
1979 1979 1979 1979 1979 1979 1979
1980 1980 1980 1980 1980 1980 1980
1981 1981 1981 1981 1981 1981 1981
1982 1982 1982 1982 1982 1982 1982
1983 1983 1983 1983 1983 1983 1983
1984 1984 1984 1984 1984 1984 1984
1985 1985 1985 1985 1985 1985 1985
1986 1986 1986 1986 1986 1986 1986
1987 1987 1987 1987 1987 1987 1987
1988 1988 1988 1988 1988 1988 1988
1989 1989 1989 1989 1989 1989 1989
1990 1990 1990 1990 1990 1990 1990
1991 1991 1991 1991 1991 1991 1991
1992 1992 1992 1992 1992 1992 1992
1993 1993 1993 1993 1993 1993 1993
Page 17: PUBLIC WORKS DEPARTMENT WATER RESOURCES DIVISION …...mountain • Supply ranges from ... Water Supplies –State Water • A small, but useful part of our water supply • Both the

LTWSP2002

LTWSP2002 (coincide)

Text of Accompanying Email

Chart1

Maximum Capacity (AF)
8277
5000
1000
3000
4150
800
300
3125

Pie Chart Data

Pie Chart Data

Cachuma8277 AF
Gibraltar6000 AF
Groundwater4150 AF
State Water3000 AF
Recycled800 AF
Desalination3125 AF
Current
Current Water Supply(AF of Capacity)
Gibraltar7400 AF
Cachuma9700 AF
Groundwater4500 AF
1980s
1980s Water Supply(AF of Capacity)

SantaBarbaraCAgovWater6

City of Santa Barbara Water Demand(Acre Feet of Production by Calendar Year - Potable + Recycled)

0

2500

5000

7500

10000

12500

15000

17500

20000

1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010

Figure ___

Total System Production (AF)

12 Months Ending

13374

February 28 2011

Post-DroughtPre-Drought Drought

SantaBarbaraCAgovWater7

Water Supplies - Cachumabull Primary City

Water Supply

bull Multi-Year SourceA few dry years notan issue

bull 8277 AFYCurrent Entitlement

bull 7863 AFYProjected Entitlement (2030)

SantaBarbaraCAgovWater8

Water Supplies - Cachuma

0

50000

100000

150000

200000

250000

1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011Water Year

Historical StorageVolumes1987-1993 Period

Recent History of Lake Cachuma Storage Levels (AF)With 1987-1993 Period Shown for Comparison

Figure ____

SantaBarbaraCAgovWater9

Water Supplies - Gibraltarbull ldquoPass Throughrdquo

implementationin progress

bull Modelingunder review

bull Conservative planning assumptions used pending modeling results

bull Sedimentation management study planned

SantaBarbaraCAgovWater10

Water Supplies ndash Mission Tunnelbull Infiltration from

percolating groundwateron both sides of themountain

bull Supply ranges from500 to 2375 AFY

bull Average contribution1125 AFY

SantaBarbaraCAgovWater11

Water Supplies ndash State Waterbull A small but useful part of our water

supply

bull Both the water amp the pipeline have value

bull Cityrsquos maximum delivery amount - 3300 AFY

bull Deliveries subject to availability

SantaBarbaraCAgovWater12

Water Supplies ndash State Waterbull Projections based on DWR

modeling using long-term databull No Delta or storage

improvementsbull Environmental limits remain in

effectbull Climate change effects assumed

SantaBarbaraCAgovWater13

Water Supplies - Groundwater

SantaBarbaraCAgovWater14

Water Supplies ndash Groundwaterbull Pumping occurs in

Downtown amp OuterState Street areas

bull 1300 AFY safe yieldbull Average City pumping

assumed at ~1100 AFYbull Maximum of 4150 AFY during drought

Ortega Groundwater Treatment Plant

SantaBarbaraCAgovWater15

Water Supplies ndash Recycled WaterRecycled Water Distribution System

SantaBarbaraCAgovWater16

Water Supplies ndash Recycled Waterbull Displaces use of potable

water amp extends water supplybull Current connected

demand 800 AFYbull 300 AFY potential demand amp capacity identifiedbull Target demand 1100 AFYbull Blending an economical solution for reducing mineral

contentbull Policy issues related to blending

SantaBarbaraCAgovWater17

Water Supplies ndash Recycled Water

SantaBarbaraCAgovWater18

Recycled Water Blending bull Filterability (turbidity) - solution identifiedbull Mineral Content (salts) separate issue -

- Blending $180AF added operating cost- MFRO $341AF added cost + $46 million

capitalbull Proposed Policy ldquoContingency Plan to

eliminate blending with goal to be ready to implement plan based on economic regulatory or water supply requirementsrdquo

SantaBarbaraCAgovWater19

Water Supplies - Desalination

bull Reliable butexpensive source

bull $177 million toreactivate if needed

bull Important to keepfor use in case ofextended drought

bull Proposed Planning Goal Avoid use until year six of Critical Drought Period

SantaBarbaraCAgovWater20

Demand Managementbull Declining demand

- Best Management Practices (CUWCC)- Conservation Program- 20 x 2020- Plumbing Code amp Appliance Standards

bull Projected development - 800 to 900 AFY bull Water Conservation Technical Evaluation

SantaBarbaraCAgovWater21

Demand Projections

12000

12500

13000

13500

14000

14500

15000

2010 2012 2014 2016 2018 2020 2022 2024 2026 2028 2030

Plan SB Demand (No Plumbing Code or Conservation Effects)Plumbing Code Effects OnlyPlumbing Code + Program B20 X 2020 Trend Line20 X 2020 Regulatory Limit

Water System Demand Projections (AFY)

SantaBarbaraCAgovWater22

Water Supply Planning Target

Projected Demand 14000Safety Margin (10) + 1400

Water Supply Target = 15400 AFY

SantaBarbaraCAgovWater23

Water Supply Planning Conceptsbull Planning for 6-Year Critical Drought Periodbull Water Supply Modeling - Using Historical

Data with Current Water Supply Sources and Projected Demands

bull Ongoing Conservation vs Short Term Planned Demand Reductions for Extraordinary Situations

SantaBarbaraCAgovWater24

Water Supply Performance

SantaBarbaraCAgovWater25

SantaBarbaraCAgovWater26

SantaBarbaraCAgovWater27

SantaBarbaraCAgovWater28

Key Policy Issuesbull Achieve 20 x 2020 through BMPs Additional

Conservation Measures amp Recycled Waterbull Planning for a 6-Year Duration Critical Drought

- Manage supplies to avoid use of Desal until year six- Water Banking Purchases- Planned Demand Reductions 10 to 15- Recycled Water Expansion

bull Recycled Water Blending bull Sedimentation Management

SantaBarbaraCAgovWater29

Next Stepsbull Finalize updated Long-Term Water

Supply Plan- April 11 Final Comments from Water

Commission- Environmental Review

bull Prepare Urban Water Management Plan Update per State Requirements

bull Target Adoption Date for LTWSP amp UWMP - June 14 2011

SantaBarbaraCAgovWater30

Discussion amp Feedback

SantaBarbaraCAgovWater31

SantaBarbaraCAgovWater32

SantaBarbaraCAgovWater33

SantaBarbaraCAgovWater34

SantaBarbaraCAgovWater35

SantaBarbaraCAgovWater36

Upper Santa Ynez River Operations Agreement(ldquoPass Through Agreementrdquo)

SantaBarbaraCAgovWater37

Context of 1989 Agreementbull City water supply shortage identified ndash Gibraltar

vulnerable to siltation

bull Solution Raise Gibraltar Dam 20rsquo to 40rsquo

bull Challenges by downstream and environmental interests

bull Cachuma enlargement under consideration

SantaBarbaraCAgovWater38

Parties to the Agreement

bull City of Santa Barbarabull Carpinteria Valley Water Districtbull Goleta Water Districtbull Montecito Water Districtbull Santa Ynez River Water Conservation Districtbull SYRWCD Improvement District No 1

Consent and Acknowledgement by US Bureau of Reclamation

SantaBarbaraCAgovWater39

Pass Through Summer no inflow

Current volume (reflects on-going siltation since 1988)

1988 Reservoir volume

Note different siltation levels

SantaBarbaraCAgovWater40

Smaller Reservoir Spills Sooner1988 Reservoir volume

Current Reservoir volume

SantaBarbaraCAgovWater41

Difference is Stored in Cachuma as Gibraltar WaterBase Reservoir

Actual Reservoir

SantaBarbaraCAgovWater42

  • Long Term Water Supply Plan Adaptive Management
  • Overview
  • Historical Background
  • Historical Background
  • Historical Background
  • Slide Number 6
  • Water Supplies - Cachuma
  • Water Supplies - Cachuma
  • Water Supplies - Gibraltar
  • Water Supplies ndash Mission Tunnel
  • Water Supplies ndash State Water
  • Water Supplies ndash State Water
  • Water Supplies - Groundwater
  • Water Supplies ndash Groundwater
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Recycled Water Blending
  • Water Supplies - Desalination
  • Demand Management
  • Demand Projections
  • Water Supply Planning Target
  • Water Supply Planning Concepts
  • Water Supply Performance
  • Slide Number 25
  • Slide Number 26
  • Slide Number 27
  • Key Policy Issues
  • Next Steps
  • Discussion amp Feedback
  • Slide Number 31
  • Slide Number 32
  • Slide Number 33
  • Slide Number 34
  • Slide Number 35
  • Slide Number 36
  • Context of 1989 Agreement
  • Parties to the Agreement
  • Pass Through Summer no inflow
  • Smaller Reservoir Spills Sooner
  • Difference is Stored in Cachuma as Gibraltar Water
  • Slide Number 42
Detailed Simple
Maximum Capacity () Maximum Capacity (AF) 1980s Current
Lake Cachuma 32 8277 Cachuma 9700 8577
Gibraltar Reservoir 19 5000 Gibraltar 7400 6000
Mission Tunnel 4 1000 Groundwater 4500 4150
State Water Project 12 3000 Recycled Water 800
Groundwater 16 4150 State Water 3000
Recycled Water 3 800 Desalination 3125
Montecito Transfer 1 300 Totals 21600 25652
Desalination 12 3125
100 25652
Lake Cachuma
Gibraltar Reservoir
Mission Tunnel
State Water Project
Groundwater
Recycled Water
Montecito Transfer
Desalination
In our review of the FMP EIREIS we had a small discussion on how to characterize our water supplies in particular State Water In that discussion I commented that the average State Water delivery did not apply to how we did our water supply planning a
The supply target in this analysis is 18200 AFY with a goal of having no shortage greater than 1820 (10) in any year The critical year is 1951 This supply target was developed for us by our Community Development Department for the LTWSP and include
The Cityrsquos supply strategy as modeled is to
use all surface water supply first with a minimum (300 AFY) amount of local groundwater
use available State Water to get us to the supply target
if enough State Water is not available meet the supply target with local groundwater up to 4500 AFY
if that is not enough turn on the desal plant with a goal of having no shortage greater than 1820 AFY in the critical year
The modeling results presented in the first spreadsheet page (LTWSP2002) and the chart shows that our supplies meet the overall production target and satisfy the goal of having a shortage less than 10 in the critical year
In this analysis State Water is an important element in meeting the annual target and the critical year shortage goal The average delivery of State Water is meaningless in this analysis Also with the Cityrsquos approach our average delivery of State Wat
Another important consideration is that the estimates of State Water deliveries based on history result in historical critical periods for the Santa Ynez River and the State Water Project not coinciding I think it is acceptable for one to do this analys
I am not sure where this leaves us with respect to what we put in the FMP EISEIR for our individual water supplies For the City of Santa Barbara input I can give John Gray the bottom line of the spreadsheet with our averages for the 76 year period T
One value of the Cityrsquos approach is that it gives some meaning to the shortages that would happen (or at least are modeled to happen) if the surcharge is not included or other changes to Cachuma Project yield are suggested Our goal again is a shortage
LONG TERM WATER SUPPLY PROGRAM SUPPLY SCENARIO
As estimated by the Santa Ynez River Hydrology Model using 3 ft surcharge and BO fish releases
State Water critical period is moved to coincide with Cachuma critical period
Water Conservation and GW recharge is left out of this version
Includes ground water recovery and 10 safety margin values in acre feet production is 18200 AFY
Filename=LTWSP2002xls SWP
Year Cachuma Desal SWP GibJun GW Recycled Total Shortage
1918 8277 2357 6366 300 900 18200 14300 80
1919 8277 2400 5865 758 900 18200 14300 80
1920 8277 2400 5560 1063 900 18200 14300 80
1921 8277 2400 5483 1140 900 18200 14300 80
1922 8277 2792 5931 300 900 18200 14300 94 094
1923 8277 2894 5829 300 900 18200 14300 99 099
1924 8277 1500 5494 2029 900 18200 14300 50 05
1925 8277 1290 5294 2439 900 18200 14300 43 043
1926 8277 1740 5406 1877 900 18200 14300 58 058
1927 8277 2550 5643 830 900 18200 14300 85 085
1928 8277 2580 5548 895 900 18200 14300 86 086
1929 8277 1680 5425 1918 900 18200 14300 56 056
1930 8232 2250 5330 1488 900 18200 14300 75 057
1931 7306 2010 4673 3311 900 18200 14300 67 042
1932 7857 1950 4713 2780 900 18200 14300 65 044
1933 8277 2010 5451 1562 900 18200 14300 67 038
1934 8277 2640 5347 1036 900 18200 14300 88 033
1935 8277 1950 5528 1545 900 18200 14300 65 065
1936 8277 2460 5544 1019 900 18200 14300 82 082
1937 8277 2220 5797 1006 900 18200 14300 74 074
1938 8277 2613 6110 300 900 18200 14300 94 094
1939 8277 2640 5914 469 900 18200 14300 88 088
1940 8277 2460 5586 977 900 18200 14300 82 082
1941 8277 2318 6405 300 900 18200 14300 97 097
1942 8277 2473 6250 300 900 18200 14300 100 1
1943 8277 2534 6189 300 900 18200 14300 89 089
1944 8277 2639 6084 300 900 18200 14300 92 092
1945 8277 2700 5804 519 900 18200 14300 90 09
1946 8277 2640 5630 753 900 18200 14300 88 088
1947 8277 1710 5427 1886 900 18200 14300 57 075
1948 8277 1260 5236 2527 900 18200 14300 42 067
1949 7856 1604 1320 2021 4500 900 18200 -0 14300 44 065
1950 6760 1564 1140 3336 4500 900 18200 0 14300 38 067
1951 5470 3000 990 500 4500 900 15360 2840 01560380894 14300 33 088
1952 7546 2155 2880 4419 300 900 18200 14300 96 096
1953 8277 323 2700 5700 300 900 18200 14300 90 09
1954 8277 739 2490 5494 300 900 18200 14300 83 083
1955 8277 1222 2070 5431 300 900 18200 14300 69 069
1956 8234 2700 5462 904 900 18200 14300 90 09
1957 7521 2640 5411 1728 900 18200 14300 88 088
1958 7875 2700 5997 728 900 18200 14300 90 09
1959 8277 2640 5921 462 900 18200 14300 88 088
1960 8277 1890 5497 1636 900 18200 14300 63 063
1961 8277 1830 4178 3014 900 18200 14300 61 061
1962 8277 2340 4147 2536 900 18200 14300 78 078
1963 8277 2820 5537 666 900 18200 14300 94 094
1964 8277 2640 5327 1056 900 18200 14300 88 088
1965 8081 2460 5309 1450 900 18200 14300 82 082
1966 8220 2880 5639 561 900 18200 14300 96 096
1967 8277 2827 5896 300 900 18200 14300 96 096
1968 8277 2670 5675 678 900 18200 14300 89 089
1969 8277 2397 6326 300 900 18200 14300 93 093
1970 8277 2670 6036 317 900 18200 14300 89 089
1971 8277 2820 5733 470 900 18200 14300 94 094
1972 8277 2640 5443 940 900 18200 14300 88 088
1973 8277 2460 5747 816 900 18200 14300 82 082
1974 8277 2820 5785 418 900 18200 14300 94 094
1975 8277 2880 5742 401 900 18200 14300 96 096
1976 8277 2640 5515 868 900 18200 14300 88 088
1977 8277 990 5279 2754 900 18200 14300 33 033
1978 8277 2040 6052 931 900 18200 14300 68 068
1979 8277 2550 6171 302 900 18200 14300 85 085
1980 8277 2460 6188 375 900 18200 14300 82 082
1981 8277 2490 6145 388 900 18200 14300 83 083
1982 8277 2735 5988 300 900 18200 14300 94 094
1983 8277 1768 6955 300 900 18200 14300 100 1
1984 8277 2419 6304 300 900 18200 14300 100 1
1985 8277 2872 5851 300 900 18200 14300 96 096
1986 8277 2430 5703 890 900 18200 14300 81 081
1987 8277 2070 5321 1632 900 18200 14300 69 069
1988 8277 1290 5858 1875 900 18200 14300 43 043
1989 7990 1740 5641 1929 900 18200 14300 58 058
1990 6885 2365 1380 2170 4500 900 18200 14300 46 046
1991 6829 2388 870 2713 4500 900 18200 14300 29 029
1992 7997 2213 930 5860 300 900 18200 14300 31 031
1993 8277 1857 6866 300 900 18200 14300 76 076
Average 8122 231 2249 5436 1224 900 18163 769342 088
2241
7470
163592
LONG TERM WATER SUPPLY PROGRAM SUPPLY SCENARIO
As estimated by the Santa Ynez River Hydrology Model using 3 ft surcharge and BO fish releases
State Water deliveries are based on delivery estimates provided by CCWA in 2001
Water Conservation and GW recharge is left out of this version
Includes ground water recovery and 10 safety margin values in acre feet production is 18200 AFY
Filename=LTWSP2002xls SWP
Year Cachuma Desal SWP GibJun GW Recycled Total Shortage
1918 8277 2357 6366 300 900 18200 14300 80
1919 8277 2400 5865 758 900 18200 14300 80
1920 8277 2400 5560 1063 900 18200 14300 80
1921 8277 2400 5483 1140 900 18200 14300 80
1922 8277 2792 5931 300 900 18200 14300 94 094
1923 8277 2894 5829 300 900 18200 14300 99 099
1924 8277 1500 5494 2029 900 18200 14300 50 05
1925 8277 1290 5294 2439 900 18200 14300 43 043
1926 8277 1740 5406 1877 900 18200 14300 58 058
1927 8277 2550 5643 830 900 18200 14300 85 085
1928 8277 2580 5548 895 900 18200 14300 86 086
1929 8277 1680 5425 1918 900 18200 14300 56 056
1930 8232 1710 5330 2028 900 18200 14300 57 057
1931 7306 1260 4673 4061 900 18200 14300 42 042
1932 7857 1320 4713 3410 900 18200 14300 44 044
1933 8277 1140 5451 2432 900 18200 14300 38 038
1934 8277 990 5347 2686 900 18200 14300 33 033
1935 8277 1950 5528 1545 900 18200 14300 65 065
1936 8277 2460 5544 1019 900 18200 14300 82 082
1937 8277 2220 5797 1006 900 18200 14300 74 074
1938 8277 2613 6110 300 900 18200 14300 94 094
1939 8277 2640 5914 469 900 18200 14300 88 088
1940 8277 2460 5586 977 900 18200 14300 82 082
1941 8277 2318 6405 300 900 18200 14300 97 097
1942 8277 2473 6250 300 900 18200 14300 100 1
1943 8277 2534 6189 300 900 18200 14300 89 089
1944 8277 2639 6084 300 900 18200 14300 92 092
1945 8277 2700 5804 519 900 18200 14300 90 09
1946 8277 2640 5630 753 900 18200 14300 88 088
1947 8277 2250 5427 1346 900 18200 14300 75 075
1948 8277 2010 5236 1777 900 18200 14300 67 067
1949 7856 974 1950 2021 4500 900 18200 14300 65 065
1950 6760 694 2010 3336 4500 900 18200 14300 67 067
1951 5470 3000 2640 500 4500 900 17010 1190 00653787487 14300 88 088
1952 7546 2155 2880 4419 300 900 18200 14300 96 096
1953 8277 323 2700 5700 300 900 18200 14300 90 09
1954 8277 739 2490 5494 300 900 18200 14300 83 083
1955 8277 1222 2070 5431 300 900 18200 14300 69 069
1956 8234 2700 5462 904 900 18200 14300 90 09
1957 7521 2640 5411 1728 900 18200 14300 88 088
1958 7875 2700 5997 728 900 18200 14300 90 09
1959 8277 2640 5921 462 900 18200 14300 88 088
1960 8277 1890 5497 1636 900 18200 14300 63 063
1961 8277 1830 4178 3014 900 18200 14300 61 061
1962 8277 2340 4147 2536 900 18200 14300 78 078
1963 8277 2820 5537 666 900 18200 14300 94 094
1964 8277 2640 5327 1056 900 18200 14300 88 088
1965 8081 2460 5309 1450 900 18200 14300 82 082
1966 8220 2880 5639 561 900 18200 14300 96 096
1967 8277 2827 5896 300 900 18200 14300 96 096
1968 8277 2670 5675 678 900 18200 14300 89 089
1969 8277 2397 6326 300 900 18200 14300 93 093
1970 8277 2670 6036 317 900 18200 14300 89 089
1971 8277 2820 5733 470 900 18200 14300 94 094
1972 8277 2640 5443 940 900 18200 14300 88 088
1973 8277 2460 5747 816 900 18200 14300 82 082
1974 8277 2820 5785 418 900 18200 14300 94 094
1975 8277 2880 5742 401 900 18200 14300 96 096
1976 8277 2640 5515 868 900 18200 14300 88 088
1977 8277 990 5279 2754 900 18200 14300 33 033
1978 8277 2040 6052 931 900 18200 14300 68 068
1979 8277 2550 6171 302 900 18200 14300 85 085
1980 8277 2460 6188 375 900 18200 14300 82 082
1981 8277 2490 6145 388 900 18200 14300 83 083
1982 8277 2735 5988 300 900 18200 14300 94 094
1983 8277 1768 6955 300 900 18200 14300 100 1
1984 8277 2419 6304 300 900 18200 14300 100 1
1985 8277 2872 5851 300 900 18200 14300 96 096
1986 8277 2430 5703 890 900 18200 14300 81 081
1987 8277 2070 5321 1632 900 18200 14300 69 069
1988 8277 1290 5858 1875 900 18200 14300 43 043
1989 7990 1740 5641 1929 900 18200 14300 58 058
1990 6885 2365 1380 2170 4500 900 18200 14300 46 046
1991 6829 2388 870 2713 4500 900 18200 14300 29 029
1992 7997 2213 930 5860 300 900 18200 14300 31 031
1993 8277 1857 6866 300 900 18200 14300 76 076
Average 8122 211 2249 5436 1266 900 18184 769342 088
2241
7470
163592
Page 18: PUBLIC WORKS DEPARTMENT WATER RESOURCES DIVISION …...mountain • Supply ranges from ... Water Supplies –State Water • A small, but useful part of our water supply • Both the

LTWSP2002 (coincide)

Text of Accompanying Email

Chart1

Maximum Capacity (AF)
8277
5000
1000
3000
4150
800
300
3125

Pie Chart Data

Pie Chart Data

Cachuma8277 AF
Gibraltar6000 AF
Groundwater4150 AF
State Water3000 AF
Recycled800 AF
Desalination3125 AF
Current
Current Water Supply(AF of Capacity)
Gibraltar7400 AF
Cachuma9700 AF
Groundwater4500 AF
1980s
1980s Water Supply(AF of Capacity)

SantaBarbaraCAgovWater6

City of Santa Barbara Water Demand(Acre Feet of Production by Calendar Year - Potable + Recycled)

0

2500

5000

7500

10000

12500

15000

17500

20000

1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010

Figure ___

Total System Production (AF)

12 Months Ending

13374

February 28 2011

Post-DroughtPre-Drought Drought

SantaBarbaraCAgovWater7

Water Supplies - Cachumabull Primary City

Water Supply

bull Multi-Year SourceA few dry years notan issue

bull 8277 AFYCurrent Entitlement

bull 7863 AFYProjected Entitlement (2030)

SantaBarbaraCAgovWater8

Water Supplies - Cachuma

0

50000

100000

150000

200000

250000

1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011Water Year

Historical StorageVolumes1987-1993 Period

Recent History of Lake Cachuma Storage Levels (AF)With 1987-1993 Period Shown for Comparison

Figure ____

SantaBarbaraCAgovWater9

Water Supplies - Gibraltarbull ldquoPass Throughrdquo

implementationin progress

bull Modelingunder review

bull Conservative planning assumptions used pending modeling results

bull Sedimentation management study planned

SantaBarbaraCAgovWater10

Water Supplies ndash Mission Tunnelbull Infiltration from

percolating groundwateron both sides of themountain

bull Supply ranges from500 to 2375 AFY

bull Average contribution1125 AFY

SantaBarbaraCAgovWater11

Water Supplies ndash State Waterbull A small but useful part of our water

supply

bull Both the water amp the pipeline have value

bull Cityrsquos maximum delivery amount - 3300 AFY

bull Deliveries subject to availability

SantaBarbaraCAgovWater12

Water Supplies ndash State Waterbull Projections based on DWR

modeling using long-term databull No Delta or storage

improvementsbull Environmental limits remain in

effectbull Climate change effects assumed

SantaBarbaraCAgovWater13

Water Supplies - Groundwater

SantaBarbaraCAgovWater14

Water Supplies ndash Groundwaterbull Pumping occurs in

Downtown amp OuterState Street areas

bull 1300 AFY safe yieldbull Average City pumping

assumed at ~1100 AFYbull Maximum of 4150 AFY during drought

Ortega Groundwater Treatment Plant

SantaBarbaraCAgovWater15

Water Supplies ndash Recycled WaterRecycled Water Distribution System

SantaBarbaraCAgovWater16

Water Supplies ndash Recycled Waterbull Displaces use of potable

water amp extends water supplybull Current connected

demand 800 AFYbull 300 AFY potential demand amp capacity identifiedbull Target demand 1100 AFYbull Blending an economical solution for reducing mineral

contentbull Policy issues related to blending

SantaBarbaraCAgovWater17

Water Supplies ndash Recycled Water

SantaBarbaraCAgovWater18

Recycled Water Blending bull Filterability (turbidity) - solution identifiedbull Mineral Content (salts) separate issue -

- Blending $180AF added operating cost- MFRO $341AF added cost + $46 million

capitalbull Proposed Policy ldquoContingency Plan to

eliminate blending with goal to be ready to implement plan based on economic regulatory or water supply requirementsrdquo

SantaBarbaraCAgovWater19

Water Supplies - Desalination

bull Reliable butexpensive source

bull $177 million toreactivate if needed

bull Important to keepfor use in case ofextended drought

bull Proposed Planning Goal Avoid use until year six of Critical Drought Period

SantaBarbaraCAgovWater20

Demand Managementbull Declining demand

- Best Management Practices (CUWCC)- Conservation Program- 20 x 2020- Plumbing Code amp Appliance Standards

bull Projected development - 800 to 900 AFY bull Water Conservation Technical Evaluation

SantaBarbaraCAgovWater21

Demand Projections

12000

12500

13000

13500

14000

14500

15000

2010 2012 2014 2016 2018 2020 2022 2024 2026 2028 2030

Plan SB Demand (No Plumbing Code or Conservation Effects)Plumbing Code Effects OnlyPlumbing Code + Program B20 X 2020 Trend Line20 X 2020 Regulatory Limit

Water System Demand Projections (AFY)

SantaBarbaraCAgovWater22

Water Supply Planning Target

Projected Demand 14000Safety Margin (10) + 1400

Water Supply Target = 15400 AFY

SantaBarbaraCAgovWater23

Water Supply Planning Conceptsbull Planning for 6-Year Critical Drought Periodbull Water Supply Modeling - Using Historical

Data with Current Water Supply Sources and Projected Demands

bull Ongoing Conservation vs Short Term Planned Demand Reductions for Extraordinary Situations

SantaBarbaraCAgovWater24

Water Supply Performance

SantaBarbaraCAgovWater25

SantaBarbaraCAgovWater26

SantaBarbaraCAgovWater27

SantaBarbaraCAgovWater28

Key Policy Issuesbull Achieve 20 x 2020 through BMPs Additional

Conservation Measures amp Recycled Waterbull Planning for a 6-Year Duration Critical Drought

- Manage supplies to avoid use of Desal until year six- Water Banking Purchases- Planned Demand Reductions 10 to 15- Recycled Water Expansion

bull Recycled Water Blending bull Sedimentation Management

SantaBarbaraCAgovWater29

Next Stepsbull Finalize updated Long-Term Water

Supply Plan- April 11 Final Comments from Water

Commission- Environmental Review

bull Prepare Urban Water Management Plan Update per State Requirements

bull Target Adoption Date for LTWSP amp UWMP - June 14 2011

SantaBarbaraCAgovWater30

Discussion amp Feedback

SantaBarbaraCAgovWater31

SantaBarbaraCAgovWater32

SantaBarbaraCAgovWater33

SantaBarbaraCAgovWater34

SantaBarbaraCAgovWater35

SantaBarbaraCAgovWater36

Upper Santa Ynez River Operations Agreement(ldquoPass Through Agreementrdquo)

SantaBarbaraCAgovWater37

Context of 1989 Agreementbull City water supply shortage identified ndash Gibraltar

vulnerable to siltation

bull Solution Raise Gibraltar Dam 20rsquo to 40rsquo

bull Challenges by downstream and environmental interests

bull Cachuma enlargement under consideration

SantaBarbaraCAgovWater38

Parties to the Agreement

bull City of Santa Barbarabull Carpinteria Valley Water Districtbull Goleta Water Districtbull Montecito Water Districtbull Santa Ynez River Water Conservation Districtbull SYRWCD Improvement District No 1

Consent and Acknowledgement by US Bureau of Reclamation

SantaBarbaraCAgovWater39

Pass Through Summer no inflow

Current volume (reflects on-going siltation since 1988)

1988 Reservoir volume

Note different siltation levels

SantaBarbaraCAgovWater40

Smaller Reservoir Spills Sooner1988 Reservoir volume

Current Reservoir volume

SantaBarbaraCAgovWater41

Difference is Stored in Cachuma as Gibraltar WaterBase Reservoir

Actual Reservoir

SantaBarbaraCAgovWater42

  • Long Term Water Supply Plan Adaptive Management
  • Overview
  • Historical Background
  • Historical Background
  • Historical Background
  • Slide Number 6
  • Water Supplies - Cachuma
  • Water Supplies - Cachuma
  • Water Supplies - Gibraltar
  • Water Supplies ndash Mission Tunnel
  • Water Supplies ndash State Water
  • Water Supplies ndash State Water
  • Water Supplies - Groundwater
  • Water Supplies ndash Groundwater
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Recycled Water Blending
  • Water Supplies - Desalination
  • Demand Management
  • Demand Projections
  • Water Supply Planning Target
  • Water Supply Planning Concepts
  • Water Supply Performance
  • Slide Number 25
  • Slide Number 26
  • Slide Number 27
  • Key Policy Issues
  • Next Steps
  • Discussion amp Feedback
  • Slide Number 31
  • Slide Number 32
  • Slide Number 33
  • Slide Number 34
  • Slide Number 35
  • Slide Number 36
  • Context of 1989 Agreement
  • Parties to the Agreement
  • Pass Through Summer no inflow
  • Smaller Reservoir Spills Sooner
  • Difference is Stored in Cachuma as Gibraltar Water
  • Slide Number 42
Detailed Simple
Maximum Capacity () Maximum Capacity (AF) 1980s Current
Lake Cachuma 32 8277 Cachuma 9700 8577
Gibraltar Reservoir 19 5000 Gibraltar 7400 6000
Mission Tunnel 4 1000 Groundwater 4500 4150
State Water Project 12 3000 Recycled Water 800
Groundwater 16 4150 State Water 3000
Recycled Water 3 800 Desalination 3125
Montecito Transfer 1 300 Totals 21600 25652
Desalination 12 3125
100 25652
Lake Cachuma
Gibraltar Reservoir
Mission Tunnel
State Water Project
Groundwater
Recycled Water
Montecito Transfer
Desalination
In our review of the FMP EIREIS we had a small discussion on how to characterize our water supplies in particular State Water In that discussion I commented that the average State Water delivery did not apply to how we did our water supply planning a
The supply target in this analysis is 18200 AFY with a goal of having no shortage greater than 1820 (10) in any year The critical year is 1951 This supply target was developed for us by our Community Development Department for the LTWSP and include
The Cityrsquos supply strategy as modeled is to
use all surface water supply first with a minimum (300 AFY) amount of local groundwater
use available State Water to get us to the supply target
if enough State Water is not available meet the supply target with local groundwater up to 4500 AFY
if that is not enough turn on the desal plant with a goal of having no shortage greater than 1820 AFY in the critical year
The modeling results presented in the first spreadsheet page (LTWSP2002) and the chart shows that our supplies meet the overall production target and satisfy the goal of having a shortage less than 10 in the critical year
In this analysis State Water is an important element in meeting the annual target and the critical year shortage goal The average delivery of State Water is meaningless in this analysis Also with the Cityrsquos approach our average delivery of State Wat
Another important consideration is that the estimates of State Water deliveries based on history result in historical critical periods for the Santa Ynez River and the State Water Project not coinciding I think it is acceptable for one to do this analys
I am not sure where this leaves us with respect to what we put in the FMP EISEIR for our individual water supplies For the City of Santa Barbara input I can give John Gray the bottom line of the spreadsheet with our averages for the 76 year period T
One value of the Cityrsquos approach is that it gives some meaning to the shortages that would happen (or at least are modeled to happen) if the surcharge is not included or other changes to Cachuma Project yield are suggested Our goal again is a shortage
LONG TERM WATER SUPPLY PROGRAM SUPPLY SCENARIO
As estimated by the Santa Ynez River Hydrology Model using 3 ft surcharge and BO fish releases
State Water critical period is moved to coincide with Cachuma critical period
Water Conservation and GW recharge is left out of this version
Includes ground water recovery and 10 safety margin values in acre feet production is 18200 AFY
Filename=LTWSP2002xls SWP
Year Cachuma Desal SWP GibJun GW Recycled Total Shortage
1918 8277 2357 6366 300 900 18200 14300 80
1919 8277 2400 5865 758 900 18200 14300 80
1920 8277 2400 5560 1063 900 18200 14300 80
1921 8277 2400 5483 1140 900 18200 14300 80
1922 8277 2792 5931 300 900 18200 14300 94 094
1923 8277 2894 5829 300 900 18200 14300 99 099
1924 8277 1500 5494 2029 900 18200 14300 50 05
1925 8277 1290 5294 2439 900 18200 14300 43 043
1926 8277 1740 5406 1877 900 18200 14300 58 058
1927 8277 2550 5643 830 900 18200 14300 85 085
1928 8277 2580 5548 895 900 18200 14300 86 086
1929 8277 1680 5425 1918 900 18200 14300 56 056
1930 8232 2250 5330 1488 900 18200 14300 75 057
1931 7306 2010 4673 3311 900 18200 14300 67 042
1932 7857 1950 4713 2780 900 18200 14300 65 044
1933 8277 2010 5451 1562 900 18200 14300 67 038
1934 8277 2640 5347 1036 900 18200 14300 88 033
1935 8277 1950 5528 1545 900 18200 14300 65 065
1936 8277 2460 5544 1019 900 18200 14300 82 082
1937 8277 2220 5797 1006 900 18200 14300 74 074
1938 8277 2613 6110 300 900 18200 14300 94 094
1939 8277 2640 5914 469 900 18200 14300 88 088
1940 8277 2460 5586 977 900 18200 14300 82 082
1941 8277 2318 6405 300 900 18200 14300 97 097
1942 8277 2473 6250 300 900 18200 14300 100 1
1943 8277 2534 6189 300 900 18200 14300 89 089
1944 8277 2639 6084 300 900 18200 14300 92 092
1945 8277 2700 5804 519 900 18200 14300 90 09
1946 8277 2640 5630 753 900 18200 14300 88 088
1947 8277 1710 5427 1886 900 18200 14300 57 075
1948 8277 1260 5236 2527 900 18200 14300 42 067
1949 7856 1604 1320 2021 4500 900 18200 -0 14300 44 065
1950 6760 1564 1140 3336 4500 900 18200 0 14300 38 067
1951 5470 3000 990 500 4500 900 15360 2840 01560380894 14300 33 088
1952 7546 2155 2880 4419 300 900 18200 14300 96 096
1953 8277 323 2700 5700 300 900 18200 14300 90 09
1954 8277 739 2490 5494 300 900 18200 14300 83 083
1955 8277 1222 2070 5431 300 900 18200 14300 69 069
1956 8234 2700 5462 904 900 18200 14300 90 09
1957 7521 2640 5411 1728 900 18200 14300 88 088
1958 7875 2700 5997 728 900 18200 14300 90 09
1959 8277 2640 5921 462 900 18200 14300 88 088
1960 8277 1890 5497 1636 900 18200 14300 63 063
1961 8277 1830 4178 3014 900 18200 14300 61 061
1962 8277 2340 4147 2536 900 18200 14300 78 078
1963 8277 2820 5537 666 900 18200 14300 94 094
1964 8277 2640 5327 1056 900 18200 14300 88 088
1965 8081 2460 5309 1450 900 18200 14300 82 082
1966 8220 2880 5639 561 900 18200 14300 96 096
1967 8277 2827 5896 300 900 18200 14300 96 096
1968 8277 2670 5675 678 900 18200 14300 89 089
1969 8277 2397 6326 300 900 18200 14300 93 093
1970 8277 2670 6036 317 900 18200 14300 89 089
1971 8277 2820 5733 470 900 18200 14300 94 094
1972 8277 2640 5443 940 900 18200 14300 88 088
1973 8277 2460 5747 816 900 18200 14300 82 082
1974 8277 2820 5785 418 900 18200 14300 94 094
1975 8277 2880 5742 401 900 18200 14300 96 096
1976 8277 2640 5515 868 900 18200 14300 88 088
1977 8277 990 5279 2754 900 18200 14300 33 033
1978 8277 2040 6052 931 900 18200 14300 68 068
1979 8277 2550 6171 302 900 18200 14300 85 085
1980 8277 2460 6188 375 900 18200 14300 82 082
1981 8277 2490 6145 388 900 18200 14300 83 083
1982 8277 2735 5988 300 900 18200 14300 94 094
1983 8277 1768 6955 300 900 18200 14300 100 1
1984 8277 2419 6304 300 900 18200 14300 100 1
1985 8277 2872 5851 300 900 18200 14300 96 096
1986 8277 2430 5703 890 900 18200 14300 81 081
1987 8277 2070 5321 1632 900 18200 14300 69 069
1988 8277 1290 5858 1875 900 18200 14300 43 043
1989 7990 1740 5641 1929 900 18200 14300 58 058
1990 6885 2365 1380 2170 4500 900 18200 14300 46 046
1991 6829 2388 870 2713 4500 900 18200 14300 29 029
1992 7997 2213 930 5860 300 900 18200 14300 31 031
1993 8277 1857 6866 300 900 18200 14300 76 076
Average 8122 231 2249 5436 1224 900 18163 769342 088
2241
7470
163592
Page 19: PUBLIC WORKS DEPARTMENT WATER RESOURCES DIVISION …...mountain • Supply ranges from ... Water Supplies –State Water • A small, but useful part of our water supply • Both the

Text of Accompanying Email

Chart1

Maximum Capacity (AF)
8277
5000
1000
3000
4150
800
300
3125

Pie Chart Data

Pie Chart Data

Cachuma8277 AF
Gibraltar6000 AF
Groundwater4150 AF
State Water3000 AF
Recycled800 AF
Desalination3125 AF
Current
Current Water Supply(AF of Capacity)
Gibraltar7400 AF
Cachuma9700 AF
Groundwater4500 AF
1980s
1980s Water Supply(AF of Capacity)

SantaBarbaraCAgovWater6

City of Santa Barbara Water Demand(Acre Feet of Production by Calendar Year - Potable + Recycled)

0

2500

5000

7500

10000

12500

15000

17500

20000

1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010

Figure ___

Total System Production (AF)

12 Months Ending

13374

February 28 2011

Post-DroughtPre-Drought Drought

SantaBarbaraCAgovWater7

Water Supplies - Cachumabull Primary City

Water Supply

bull Multi-Year SourceA few dry years notan issue

bull 8277 AFYCurrent Entitlement

bull 7863 AFYProjected Entitlement (2030)

SantaBarbaraCAgovWater8

Water Supplies - Cachuma

0

50000

100000

150000

200000

250000

1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011Water Year

Historical StorageVolumes1987-1993 Period

Recent History of Lake Cachuma Storage Levels (AF)With 1987-1993 Period Shown for Comparison

Figure ____

SantaBarbaraCAgovWater9

Water Supplies - Gibraltarbull ldquoPass Throughrdquo

implementationin progress

bull Modelingunder review

bull Conservative planning assumptions used pending modeling results

bull Sedimentation management study planned

SantaBarbaraCAgovWater10

Water Supplies ndash Mission Tunnelbull Infiltration from

percolating groundwateron both sides of themountain

bull Supply ranges from500 to 2375 AFY

bull Average contribution1125 AFY

SantaBarbaraCAgovWater11

Water Supplies ndash State Waterbull A small but useful part of our water

supply

bull Both the water amp the pipeline have value

bull Cityrsquos maximum delivery amount - 3300 AFY

bull Deliveries subject to availability

SantaBarbaraCAgovWater12

Water Supplies ndash State Waterbull Projections based on DWR

modeling using long-term databull No Delta or storage

improvementsbull Environmental limits remain in

effectbull Climate change effects assumed

SantaBarbaraCAgovWater13

Water Supplies - Groundwater

SantaBarbaraCAgovWater14

Water Supplies ndash Groundwaterbull Pumping occurs in

Downtown amp OuterState Street areas

bull 1300 AFY safe yieldbull Average City pumping

assumed at ~1100 AFYbull Maximum of 4150 AFY during drought

Ortega Groundwater Treatment Plant

SantaBarbaraCAgovWater15

Water Supplies ndash Recycled WaterRecycled Water Distribution System

SantaBarbaraCAgovWater16

Water Supplies ndash Recycled Waterbull Displaces use of potable

water amp extends water supplybull Current connected

demand 800 AFYbull 300 AFY potential demand amp capacity identifiedbull Target demand 1100 AFYbull Blending an economical solution for reducing mineral

contentbull Policy issues related to blending

SantaBarbaraCAgovWater17

Water Supplies ndash Recycled Water

SantaBarbaraCAgovWater18

Recycled Water Blending bull Filterability (turbidity) - solution identifiedbull Mineral Content (salts) separate issue -

- Blending $180AF added operating cost- MFRO $341AF added cost + $46 million

capitalbull Proposed Policy ldquoContingency Plan to

eliminate blending with goal to be ready to implement plan based on economic regulatory or water supply requirementsrdquo

SantaBarbaraCAgovWater19

Water Supplies - Desalination

bull Reliable butexpensive source

bull $177 million toreactivate if needed

bull Important to keepfor use in case ofextended drought

bull Proposed Planning Goal Avoid use until year six of Critical Drought Period

SantaBarbaraCAgovWater20

Demand Managementbull Declining demand

- Best Management Practices (CUWCC)- Conservation Program- 20 x 2020- Plumbing Code amp Appliance Standards

bull Projected development - 800 to 900 AFY bull Water Conservation Technical Evaluation

SantaBarbaraCAgovWater21

Demand Projections

12000

12500

13000

13500

14000

14500

15000

2010 2012 2014 2016 2018 2020 2022 2024 2026 2028 2030

Plan SB Demand (No Plumbing Code or Conservation Effects)Plumbing Code Effects OnlyPlumbing Code + Program B20 X 2020 Trend Line20 X 2020 Regulatory Limit

Water System Demand Projections (AFY)

SantaBarbaraCAgovWater22

Water Supply Planning Target

Projected Demand 14000Safety Margin (10) + 1400

Water Supply Target = 15400 AFY

SantaBarbaraCAgovWater23

Water Supply Planning Conceptsbull Planning for 6-Year Critical Drought Periodbull Water Supply Modeling - Using Historical

Data with Current Water Supply Sources and Projected Demands

bull Ongoing Conservation vs Short Term Planned Demand Reductions for Extraordinary Situations

SantaBarbaraCAgovWater24

Water Supply Performance

SantaBarbaraCAgovWater25

SantaBarbaraCAgovWater26

SantaBarbaraCAgovWater27

SantaBarbaraCAgovWater28

Key Policy Issuesbull Achieve 20 x 2020 through BMPs Additional

Conservation Measures amp Recycled Waterbull Planning for a 6-Year Duration Critical Drought

- Manage supplies to avoid use of Desal until year six- Water Banking Purchases- Planned Demand Reductions 10 to 15- Recycled Water Expansion

bull Recycled Water Blending bull Sedimentation Management

SantaBarbaraCAgovWater29

Next Stepsbull Finalize updated Long-Term Water

Supply Plan- April 11 Final Comments from Water

Commission- Environmental Review

bull Prepare Urban Water Management Plan Update per State Requirements

bull Target Adoption Date for LTWSP amp UWMP - June 14 2011

SantaBarbaraCAgovWater30

Discussion amp Feedback

SantaBarbaraCAgovWater31

SantaBarbaraCAgovWater32

SantaBarbaraCAgovWater33

SantaBarbaraCAgovWater34

SantaBarbaraCAgovWater35

SantaBarbaraCAgovWater36

Upper Santa Ynez River Operations Agreement(ldquoPass Through Agreementrdquo)

SantaBarbaraCAgovWater37

Context of 1989 Agreementbull City water supply shortage identified ndash Gibraltar

vulnerable to siltation

bull Solution Raise Gibraltar Dam 20rsquo to 40rsquo

bull Challenges by downstream and environmental interests

bull Cachuma enlargement under consideration

SantaBarbaraCAgovWater38

Parties to the Agreement

bull City of Santa Barbarabull Carpinteria Valley Water Districtbull Goleta Water Districtbull Montecito Water Districtbull Santa Ynez River Water Conservation Districtbull SYRWCD Improvement District No 1

Consent and Acknowledgement by US Bureau of Reclamation

SantaBarbaraCAgovWater39

Pass Through Summer no inflow

Current volume (reflects on-going siltation since 1988)

1988 Reservoir volume

Note different siltation levels

SantaBarbaraCAgovWater40

Smaller Reservoir Spills Sooner1988 Reservoir volume

Current Reservoir volume

SantaBarbaraCAgovWater41

Difference is Stored in Cachuma as Gibraltar WaterBase Reservoir

Actual Reservoir

SantaBarbaraCAgovWater42

  • Long Term Water Supply Plan Adaptive Management
  • Overview
  • Historical Background
  • Historical Background
  • Historical Background
  • Slide Number 6
  • Water Supplies - Cachuma
  • Water Supplies - Cachuma
  • Water Supplies - Gibraltar
  • Water Supplies ndash Mission Tunnel
  • Water Supplies ndash State Water
  • Water Supplies ndash State Water
  • Water Supplies - Groundwater
  • Water Supplies ndash Groundwater
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Recycled Water Blending
  • Water Supplies - Desalination
  • Demand Management
  • Demand Projections
  • Water Supply Planning Target
  • Water Supply Planning Concepts
  • Water Supply Performance
  • Slide Number 25
  • Slide Number 26
  • Slide Number 27
  • Key Policy Issues
  • Next Steps
  • Discussion amp Feedback
  • Slide Number 31
  • Slide Number 32
  • Slide Number 33
  • Slide Number 34
  • Slide Number 35
  • Slide Number 36
  • Context of 1989 Agreement
  • Parties to the Agreement
  • Pass Through Summer no inflow
  • Smaller Reservoir Spills Sooner
  • Difference is Stored in Cachuma as Gibraltar Water
  • Slide Number 42
Detailed Simple
Maximum Capacity () Maximum Capacity (AF) 1980s Current
Lake Cachuma 32 8277 Cachuma 9700 8577
Gibraltar Reservoir 19 5000 Gibraltar 7400 6000
Mission Tunnel 4 1000 Groundwater 4500 4150
State Water Project 12 3000 Recycled Water 800
Groundwater 16 4150 State Water 3000
Recycled Water 3 800 Desalination 3125
Montecito Transfer 1 300 Totals 21600 25652
Desalination 12 3125
100 25652
Lake Cachuma
Gibraltar Reservoir
Mission Tunnel
State Water Project
Groundwater
Recycled Water
Montecito Transfer
Desalination
In our review of the FMP EIREIS we had a small discussion on how to characterize our water supplies in particular State Water In that discussion I commented that the average State Water delivery did not apply to how we did our water supply planning a
The supply target in this analysis is 18200 AFY with a goal of having no shortage greater than 1820 (10) in any year The critical year is 1951 This supply target was developed for us by our Community Development Department for the LTWSP and include
The Cityrsquos supply strategy as modeled is to
use all surface water supply first with a minimum (300 AFY) amount of local groundwater
use available State Water to get us to the supply target
if enough State Water is not available meet the supply target with local groundwater up to 4500 AFY
if that is not enough turn on the desal plant with a goal of having no shortage greater than 1820 AFY in the critical year
The modeling results presented in the first spreadsheet page (LTWSP2002) and the chart shows that our supplies meet the overall production target and satisfy the goal of having a shortage less than 10 in the critical year
In this analysis State Water is an important element in meeting the annual target and the critical year shortage goal The average delivery of State Water is meaningless in this analysis Also with the Cityrsquos approach our average delivery of State Wat
Another important consideration is that the estimates of State Water deliveries based on history result in historical critical periods for the Santa Ynez River and the State Water Project not coinciding I think it is acceptable for one to do this analys
I am not sure where this leaves us with respect to what we put in the FMP EISEIR for our individual water supplies For the City of Santa Barbara input I can give John Gray the bottom line of the spreadsheet with our averages for the 76 year period T
One value of the Cityrsquos approach is that it gives some meaning to the shortages that would happen (or at least are modeled to happen) if the surcharge is not included or other changes to Cachuma Project yield are suggested Our goal again is a shortage
Page 20: PUBLIC WORKS DEPARTMENT WATER RESOURCES DIVISION …...mountain • Supply ranges from ... Water Supplies –State Water • A small, but useful part of our water supply • Both the

Chart1

Maximum Capacity (AF)
8277
5000
1000
3000
4150
800
300
3125

Pie Chart Data

Pie Chart Data

Cachuma8277 AF
Gibraltar6000 AF
Groundwater4150 AF
State Water3000 AF
Recycled800 AF
Desalination3125 AF
Current
Current Water Supply(AF of Capacity)
Gibraltar7400 AF
Cachuma9700 AF
Groundwater4500 AF
1980s
1980s Water Supply(AF of Capacity)

SantaBarbaraCAgovWater6

City of Santa Barbara Water Demand(Acre Feet of Production by Calendar Year - Potable + Recycled)

0

2500

5000

7500

10000

12500

15000

17500

20000

1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010

Figure ___

Total System Production (AF)

12 Months Ending

13374

February 28 2011

Post-DroughtPre-Drought Drought

SantaBarbaraCAgovWater7

Water Supplies - Cachumabull Primary City

Water Supply

bull Multi-Year SourceA few dry years notan issue

bull 8277 AFYCurrent Entitlement

bull 7863 AFYProjected Entitlement (2030)

SantaBarbaraCAgovWater8

Water Supplies - Cachuma

0

50000

100000

150000

200000

250000

1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011Water Year

Historical StorageVolumes1987-1993 Period

Recent History of Lake Cachuma Storage Levels (AF)With 1987-1993 Period Shown for Comparison

Figure ____

SantaBarbaraCAgovWater9

Water Supplies - Gibraltarbull ldquoPass Throughrdquo

implementationin progress

bull Modelingunder review

bull Conservative planning assumptions used pending modeling results

bull Sedimentation management study planned

SantaBarbaraCAgovWater10

Water Supplies ndash Mission Tunnelbull Infiltration from

percolating groundwateron both sides of themountain

bull Supply ranges from500 to 2375 AFY

bull Average contribution1125 AFY

SantaBarbaraCAgovWater11

Water Supplies ndash State Waterbull A small but useful part of our water

supply

bull Both the water amp the pipeline have value

bull Cityrsquos maximum delivery amount - 3300 AFY

bull Deliveries subject to availability

SantaBarbaraCAgovWater12

Water Supplies ndash State Waterbull Projections based on DWR

modeling using long-term databull No Delta or storage

improvementsbull Environmental limits remain in

effectbull Climate change effects assumed

SantaBarbaraCAgovWater13

Water Supplies - Groundwater

SantaBarbaraCAgovWater14

Water Supplies ndash Groundwaterbull Pumping occurs in

Downtown amp OuterState Street areas

bull 1300 AFY safe yieldbull Average City pumping

assumed at ~1100 AFYbull Maximum of 4150 AFY during drought

Ortega Groundwater Treatment Plant

SantaBarbaraCAgovWater15

Water Supplies ndash Recycled WaterRecycled Water Distribution System

SantaBarbaraCAgovWater16

Water Supplies ndash Recycled Waterbull Displaces use of potable

water amp extends water supplybull Current connected

demand 800 AFYbull 300 AFY potential demand amp capacity identifiedbull Target demand 1100 AFYbull Blending an economical solution for reducing mineral

contentbull Policy issues related to blending

SantaBarbaraCAgovWater17

Water Supplies ndash Recycled Water

SantaBarbaraCAgovWater18

Recycled Water Blending bull Filterability (turbidity) - solution identifiedbull Mineral Content (salts) separate issue -

- Blending $180AF added operating cost- MFRO $341AF added cost + $46 million

capitalbull Proposed Policy ldquoContingency Plan to

eliminate blending with goal to be ready to implement plan based on economic regulatory or water supply requirementsrdquo

SantaBarbaraCAgovWater19

Water Supplies - Desalination

bull Reliable butexpensive source

bull $177 million toreactivate if needed

bull Important to keepfor use in case ofextended drought

bull Proposed Planning Goal Avoid use until year six of Critical Drought Period

SantaBarbaraCAgovWater20

Demand Managementbull Declining demand

- Best Management Practices (CUWCC)- Conservation Program- 20 x 2020- Plumbing Code amp Appliance Standards

bull Projected development - 800 to 900 AFY bull Water Conservation Technical Evaluation

SantaBarbaraCAgovWater21

Demand Projections

12000

12500

13000

13500

14000

14500

15000

2010 2012 2014 2016 2018 2020 2022 2024 2026 2028 2030

Plan SB Demand (No Plumbing Code or Conservation Effects)Plumbing Code Effects OnlyPlumbing Code + Program B20 X 2020 Trend Line20 X 2020 Regulatory Limit

Water System Demand Projections (AFY)

SantaBarbaraCAgovWater22

Water Supply Planning Target

Projected Demand 14000Safety Margin (10) + 1400

Water Supply Target = 15400 AFY

SantaBarbaraCAgovWater23

Water Supply Planning Conceptsbull Planning for 6-Year Critical Drought Periodbull Water Supply Modeling - Using Historical

Data with Current Water Supply Sources and Projected Demands

bull Ongoing Conservation vs Short Term Planned Demand Reductions for Extraordinary Situations

SantaBarbaraCAgovWater24

Water Supply Performance

SantaBarbaraCAgovWater25

SantaBarbaraCAgovWater26

SantaBarbaraCAgovWater27

SantaBarbaraCAgovWater28

Key Policy Issuesbull Achieve 20 x 2020 through BMPs Additional

Conservation Measures amp Recycled Waterbull Planning for a 6-Year Duration Critical Drought

- Manage supplies to avoid use of Desal until year six- Water Banking Purchases- Planned Demand Reductions 10 to 15- Recycled Water Expansion

bull Recycled Water Blending bull Sedimentation Management

SantaBarbaraCAgovWater29

Next Stepsbull Finalize updated Long-Term Water

Supply Plan- April 11 Final Comments from Water

Commission- Environmental Review

bull Prepare Urban Water Management Plan Update per State Requirements

bull Target Adoption Date for LTWSP amp UWMP - June 14 2011

SantaBarbaraCAgovWater30

Discussion amp Feedback

SantaBarbaraCAgovWater31

SantaBarbaraCAgovWater32

SantaBarbaraCAgovWater33

SantaBarbaraCAgovWater34

SantaBarbaraCAgovWater35

SantaBarbaraCAgovWater36

Upper Santa Ynez River Operations Agreement(ldquoPass Through Agreementrdquo)

SantaBarbaraCAgovWater37

Context of 1989 Agreementbull City water supply shortage identified ndash Gibraltar

vulnerable to siltation

bull Solution Raise Gibraltar Dam 20rsquo to 40rsquo

bull Challenges by downstream and environmental interests

bull Cachuma enlargement under consideration

SantaBarbaraCAgovWater38

Parties to the Agreement

bull City of Santa Barbarabull Carpinteria Valley Water Districtbull Goleta Water Districtbull Montecito Water Districtbull Santa Ynez River Water Conservation Districtbull SYRWCD Improvement District No 1

Consent and Acknowledgement by US Bureau of Reclamation

SantaBarbaraCAgovWater39

Pass Through Summer no inflow

Current volume (reflects on-going siltation since 1988)

1988 Reservoir volume

Note different siltation levels

SantaBarbaraCAgovWater40

Smaller Reservoir Spills Sooner1988 Reservoir volume

Current Reservoir volume

SantaBarbaraCAgovWater41

Difference is Stored in Cachuma as Gibraltar WaterBase Reservoir

Actual Reservoir

SantaBarbaraCAgovWater42

  • Long Term Water Supply Plan Adaptive Management
  • Overview
  • Historical Background
  • Historical Background
  • Historical Background
  • Slide Number 6
  • Water Supplies - Cachuma
  • Water Supplies - Cachuma
  • Water Supplies - Gibraltar
  • Water Supplies ndash Mission Tunnel
  • Water Supplies ndash State Water
  • Water Supplies ndash State Water
  • Water Supplies - Groundwater
  • Water Supplies ndash Groundwater
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Recycled Water Blending
  • Water Supplies - Desalination
  • Demand Management
  • Demand Projections
  • Water Supply Planning Target
  • Water Supply Planning Concepts
  • Water Supply Performance
  • Slide Number 25
  • Slide Number 26
  • Slide Number 27
  • Key Policy Issues
  • Next Steps
  • Discussion amp Feedback
  • Slide Number 31
  • Slide Number 32
  • Slide Number 33
  • Slide Number 34
  • Slide Number 35
  • Slide Number 36
  • Context of 1989 Agreement
  • Parties to the Agreement
  • Pass Through Summer no inflow
  • Smaller Reservoir Spills Sooner
  • Difference is Stored in Cachuma as Gibraltar Water
  • Slide Number 42
Detailed Simple
Maximum Capacity () Maximum Capacity (AF) 1980s Current
Lake Cachuma 32 8277 Cachuma 9700 8577
Gibraltar Reservoir 19 5000 Gibraltar 7400 6000
Mission Tunnel 4 1000 Groundwater 4500 4150
State Water Project 12 3000 Recycled Water 800
Groundwater 16 4150 State Water 3000
Recycled Water 3 800 Desalination 3125
Montecito Transfer 1 300 Totals 21600 25652
Desalination 12 3125
100 25652
Lake Cachuma
Gibraltar Reservoir
Mission Tunnel
State Water Project
Groundwater
Recycled Water
Montecito Transfer
Desalination
Page 21: PUBLIC WORKS DEPARTMENT WATER RESOURCES DIVISION …...mountain • Supply ranges from ... Water Supplies –State Water • A small, but useful part of our water supply • Both the

Pie Chart Data

Pie Chart Data

Cachuma8277 AF
Gibraltar6000 AF
Groundwater4150 AF
State Water3000 AF
Recycled800 AF
Desalination3125 AF
Current
Current Water Supply(AF of Capacity)
Gibraltar7400 AF
Cachuma9700 AF
Groundwater4500 AF
1980s
1980s Water Supply(AF of Capacity)

SantaBarbaraCAgovWater6

City of Santa Barbara Water Demand(Acre Feet of Production by Calendar Year - Potable + Recycled)

0

2500

5000

7500

10000

12500

15000

17500

20000

1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010

Figure ___

Total System Production (AF)

12 Months Ending

13374

February 28 2011

Post-DroughtPre-Drought Drought

SantaBarbaraCAgovWater7

Water Supplies - Cachumabull Primary City

Water Supply

bull Multi-Year SourceA few dry years notan issue

bull 8277 AFYCurrent Entitlement

bull 7863 AFYProjected Entitlement (2030)

SantaBarbaraCAgovWater8

Water Supplies - Cachuma

0

50000

100000

150000

200000

250000

1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011Water Year

Historical StorageVolumes1987-1993 Period

Recent History of Lake Cachuma Storage Levels (AF)With 1987-1993 Period Shown for Comparison

Figure ____

SantaBarbaraCAgovWater9

Water Supplies - Gibraltarbull ldquoPass Throughrdquo

implementationin progress

bull Modelingunder review

bull Conservative planning assumptions used pending modeling results

bull Sedimentation management study planned

SantaBarbaraCAgovWater10

Water Supplies ndash Mission Tunnelbull Infiltration from

percolating groundwateron both sides of themountain

bull Supply ranges from500 to 2375 AFY

bull Average contribution1125 AFY

SantaBarbaraCAgovWater11

Water Supplies ndash State Waterbull A small but useful part of our water

supply

bull Both the water amp the pipeline have value

bull Cityrsquos maximum delivery amount - 3300 AFY

bull Deliveries subject to availability

SantaBarbaraCAgovWater12

Water Supplies ndash State Waterbull Projections based on DWR

modeling using long-term databull No Delta or storage

improvementsbull Environmental limits remain in

effectbull Climate change effects assumed

SantaBarbaraCAgovWater13

Water Supplies - Groundwater

SantaBarbaraCAgovWater14

Water Supplies ndash Groundwaterbull Pumping occurs in

Downtown amp OuterState Street areas

bull 1300 AFY safe yieldbull Average City pumping

assumed at ~1100 AFYbull Maximum of 4150 AFY during drought

Ortega Groundwater Treatment Plant

SantaBarbaraCAgovWater15

Water Supplies ndash Recycled WaterRecycled Water Distribution System

SantaBarbaraCAgovWater16

Water Supplies ndash Recycled Waterbull Displaces use of potable

water amp extends water supplybull Current connected

demand 800 AFYbull 300 AFY potential demand amp capacity identifiedbull Target demand 1100 AFYbull Blending an economical solution for reducing mineral

contentbull Policy issues related to blending

SantaBarbaraCAgovWater17

Water Supplies ndash Recycled Water

SantaBarbaraCAgovWater18

Recycled Water Blending bull Filterability (turbidity) - solution identifiedbull Mineral Content (salts) separate issue -

- Blending $180AF added operating cost- MFRO $341AF added cost + $46 million

capitalbull Proposed Policy ldquoContingency Plan to

eliminate blending with goal to be ready to implement plan based on economic regulatory or water supply requirementsrdquo

SantaBarbaraCAgovWater19

Water Supplies - Desalination

bull Reliable butexpensive source

bull $177 million toreactivate if needed

bull Important to keepfor use in case ofextended drought

bull Proposed Planning Goal Avoid use until year six of Critical Drought Period

SantaBarbaraCAgovWater20

Demand Managementbull Declining demand

- Best Management Practices (CUWCC)- Conservation Program- 20 x 2020- Plumbing Code amp Appliance Standards

bull Projected development - 800 to 900 AFY bull Water Conservation Technical Evaluation

SantaBarbaraCAgovWater21

Demand Projections

12000

12500

13000

13500

14000

14500

15000

2010 2012 2014 2016 2018 2020 2022 2024 2026 2028 2030

Plan SB Demand (No Plumbing Code or Conservation Effects)Plumbing Code Effects OnlyPlumbing Code + Program B20 X 2020 Trend Line20 X 2020 Regulatory Limit

Water System Demand Projections (AFY)

SantaBarbaraCAgovWater22

Water Supply Planning Target

Projected Demand 14000Safety Margin (10) + 1400

Water Supply Target = 15400 AFY

SantaBarbaraCAgovWater23

Water Supply Planning Conceptsbull Planning for 6-Year Critical Drought Periodbull Water Supply Modeling - Using Historical

Data with Current Water Supply Sources and Projected Demands

bull Ongoing Conservation vs Short Term Planned Demand Reductions for Extraordinary Situations

SantaBarbaraCAgovWater24

Water Supply Performance

SantaBarbaraCAgovWater25

SantaBarbaraCAgovWater26

SantaBarbaraCAgovWater27

SantaBarbaraCAgovWater28

Key Policy Issuesbull Achieve 20 x 2020 through BMPs Additional

Conservation Measures amp Recycled Waterbull Planning for a 6-Year Duration Critical Drought

- Manage supplies to avoid use of Desal until year six- Water Banking Purchases- Planned Demand Reductions 10 to 15- Recycled Water Expansion

bull Recycled Water Blending bull Sedimentation Management

SantaBarbaraCAgovWater29

Next Stepsbull Finalize updated Long-Term Water

Supply Plan- April 11 Final Comments from Water

Commission- Environmental Review

bull Prepare Urban Water Management Plan Update per State Requirements

bull Target Adoption Date for LTWSP amp UWMP - June 14 2011

SantaBarbaraCAgovWater30

Discussion amp Feedback

SantaBarbaraCAgovWater31

SantaBarbaraCAgovWater32

SantaBarbaraCAgovWater33

SantaBarbaraCAgovWater34

SantaBarbaraCAgovWater35

SantaBarbaraCAgovWater36

Upper Santa Ynez River Operations Agreement(ldquoPass Through Agreementrdquo)

SantaBarbaraCAgovWater37

Context of 1989 Agreementbull City water supply shortage identified ndash Gibraltar

vulnerable to siltation

bull Solution Raise Gibraltar Dam 20rsquo to 40rsquo

bull Challenges by downstream and environmental interests

bull Cachuma enlargement under consideration

SantaBarbaraCAgovWater38

Parties to the Agreement

bull City of Santa Barbarabull Carpinteria Valley Water Districtbull Goleta Water Districtbull Montecito Water Districtbull Santa Ynez River Water Conservation Districtbull SYRWCD Improvement District No 1

Consent and Acknowledgement by US Bureau of Reclamation

SantaBarbaraCAgovWater39

Pass Through Summer no inflow

Current volume (reflects on-going siltation since 1988)

1988 Reservoir volume

Note different siltation levels

SantaBarbaraCAgovWater40

Smaller Reservoir Spills Sooner1988 Reservoir volume

Current Reservoir volume

SantaBarbaraCAgovWater41

Difference is Stored in Cachuma as Gibraltar WaterBase Reservoir

Actual Reservoir

SantaBarbaraCAgovWater42

  • Long Term Water Supply Plan Adaptive Management
  • Overview
  • Historical Background
  • Historical Background
  • Historical Background
  • Slide Number 6
  • Water Supplies - Cachuma
  • Water Supplies - Cachuma
  • Water Supplies - Gibraltar
  • Water Supplies ndash Mission Tunnel
  • Water Supplies ndash State Water
  • Water Supplies ndash State Water
  • Water Supplies - Groundwater
  • Water Supplies ndash Groundwater
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Recycled Water Blending
  • Water Supplies - Desalination
  • Demand Management
  • Demand Projections
  • Water Supply Planning Target
  • Water Supply Planning Concepts
  • Water Supply Performance
  • Slide Number 25
  • Slide Number 26
  • Slide Number 27
  • Key Policy Issues
  • Next Steps
  • Discussion amp Feedback
  • Slide Number 31
  • Slide Number 32
  • Slide Number 33
  • Slide Number 34
  • Slide Number 35
  • Slide Number 36
  • Context of 1989 Agreement
  • Parties to the Agreement
  • Pass Through Summer no inflow
  • Smaller Reservoir Spills Sooner
  • Difference is Stored in Cachuma as Gibraltar Water
  • Slide Number 42
Detailed Simple
Maximum Capacity () Maximum Capacity (AF) 1980s Current
Lake Cachuma 32 8277 Cachuma 9700 8577
Gibraltar Reservoir 19 5000 Gibraltar 7400 6000
Mission Tunnel 4 1000 Groundwater 4500 4150
State Water Project 12 3000 Recycled Water 800
Groundwater 16 4150 State Water 3000
Recycled Water 3 800 Desalination 3125
Montecito Transfer 1 300 Totals 21600 25652
Desalination 12 3125
100 25652
Page 22: PUBLIC WORKS DEPARTMENT WATER RESOURCES DIVISION …...mountain • Supply ranges from ... Water Supplies –State Water • A small, but useful part of our water supply • Both the

Pie Chart Data

Cachuma8277 AF
Gibraltar6000 AF
Groundwater4150 AF
State Water3000 AF
Recycled800 AF
Desalination3125 AF
Current
Current Water Supply(AF of Capacity)
Gibraltar7400 AF
Cachuma9700 AF
Groundwater4500 AF
1980s
1980s Water Supply(AF of Capacity)

SantaBarbaraCAgovWater6

City of Santa Barbara Water Demand(Acre Feet of Production by Calendar Year - Potable + Recycled)

0

2500

5000

7500

10000

12500

15000

17500

20000

1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010

Figure ___

Total System Production (AF)

12 Months Ending

13374

February 28 2011

Post-DroughtPre-Drought Drought

SantaBarbaraCAgovWater7

Water Supplies - Cachumabull Primary City

Water Supply

bull Multi-Year SourceA few dry years notan issue

bull 8277 AFYCurrent Entitlement

bull 7863 AFYProjected Entitlement (2030)

SantaBarbaraCAgovWater8

Water Supplies - Cachuma

0

50000

100000

150000

200000

250000

1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011Water Year

Historical StorageVolumes1987-1993 Period

Recent History of Lake Cachuma Storage Levels (AF)With 1987-1993 Period Shown for Comparison

Figure ____

SantaBarbaraCAgovWater9

Water Supplies - Gibraltarbull ldquoPass Throughrdquo

implementationin progress

bull Modelingunder review

bull Conservative planning assumptions used pending modeling results

bull Sedimentation management study planned

SantaBarbaraCAgovWater10

Water Supplies ndash Mission Tunnelbull Infiltration from

percolating groundwateron both sides of themountain

bull Supply ranges from500 to 2375 AFY

bull Average contribution1125 AFY

SantaBarbaraCAgovWater11

Water Supplies ndash State Waterbull A small but useful part of our water

supply

bull Both the water amp the pipeline have value

bull Cityrsquos maximum delivery amount - 3300 AFY

bull Deliveries subject to availability

SantaBarbaraCAgovWater12

Water Supplies ndash State Waterbull Projections based on DWR

modeling using long-term databull No Delta or storage

improvementsbull Environmental limits remain in

effectbull Climate change effects assumed

SantaBarbaraCAgovWater13

Water Supplies - Groundwater

SantaBarbaraCAgovWater14

Water Supplies ndash Groundwaterbull Pumping occurs in

Downtown amp OuterState Street areas

bull 1300 AFY safe yieldbull Average City pumping

assumed at ~1100 AFYbull Maximum of 4150 AFY during drought

Ortega Groundwater Treatment Plant

SantaBarbaraCAgovWater15

Water Supplies ndash Recycled WaterRecycled Water Distribution System

SantaBarbaraCAgovWater16

Water Supplies ndash Recycled Waterbull Displaces use of potable

water amp extends water supplybull Current connected

demand 800 AFYbull 300 AFY potential demand amp capacity identifiedbull Target demand 1100 AFYbull Blending an economical solution for reducing mineral

contentbull Policy issues related to blending

SantaBarbaraCAgovWater17

Water Supplies ndash Recycled Water

SantaBarbaraCAgovWater18

Recycled Water Blending bull Filterability (turbidity) - solution identifiedbull Mineral Content (salts) separate issue -

- Blending $180AF added operating cost- MFRO $341AF added cost + $46 million

capitalbull Proposed Policy ldquoContingency Plan to

eliminate blending with goal to be ready to implement plan based on economic regulatory or water supply requirementsrdquo

SantaBarbaraCAgovWater19

Water Supplies - Desalination

bull Reliable butexpensive source

bull $177 million toreactivate if needed

bull Important to keepfor use in case ofextended drought

bull Proposed Planning Goal Avoid use until year six of Critical Drought Period

SantaBarbaraCAgovWater20

Demand Managementbull Declining demand

- Best Management Practices (CUWCC)- Conservation Program- 20 x 2020- Plumbing Code amp Appliance Standards

bull Projected development - 800 to 900 AFY bull Water Conservation Technical Evaluation

SantaBarbaraCAgovWater21

Demand Projections

12000

12500

13000

13500

14000

14500

15000

2010 2012 2014 2016 2018 2020 2022 2024 2026 2028 2030

Plan SB Demand (No Plumbing Code or Conservation Effects)Plumbing Code Effects OnlyPlumbing Code + Program B20 X 2020 Trend Line20 X 2020 Regulatory Limit

Water System Demand Projections (AFY)

SantaBarbaraCAgovWater22

Water Supply Planning Target

Projected Demand 14000Safety Margin (10) + 1400

Water Supply Target = 15400 AFY

SantaBarbaraCAgovWater23

Water Supply Planning Conceptsbull Planning for 6-Year Critical Drought Periodbull Water Supply Modeling - Using Historical

Data with Current Water Supply Sources and Projected Demands

bull Ongoing Conservation vs Short Term Planned Demand Reductions for Extraordinary Situations

SantaBarbaraCAgovWater24

Water Supply Performance

SantaBarbaraCAgovWater25

SantaBarbaraCAgovWater26

SantaBarbaraCAgovWater27

SantaBarbaraCAgovWater28

Key Policy Issuesbull Achieve 20 x 2020 through BMPs Additional

Conservation Measures amp Recycled Waterbull Planning for a 6-Year Duration Critical Drought

- Manage supplies to avoid use of Desal until year six- Water Banking Purchases- Planned Demand Reductions 10 to 15- Recycled Water Expansion

bull Recycled Water Blending bull Sedimentation Management

SantaBarbaraCAgovWater29

Next Stepsbull Finalize updated Long-Term Water

Supply Plan- April 11 Final Comments from Water

Commission- Environmental Review

bull Prepare Urban Water Management Plan Update per State Requirements

bull Target Adoption Date for LTWSP amp UWMP - June 14 2011

SantaBarbaraCAgovWater30

Discussion amp Feedback

SantaBarbaraCAgovWater31

SantaBarbaraCAgovWater32

SantaBarbaraCAgovWater33

SantaBarbaraCAgovWater34

SantaBarbaraCAgovWater35

SantaBarbaraCAgovWater36

Upper Santa Ynez River Operations Agreement(ldquoPass Through Agreementrdquo)

SantaBarbaraCAgovWater37

Context of 1989 Agreementbull City water supply shortage identified ndash Gibraltar

vulnerable to siltation

bull Solution Raise Gibraltar Dam 20rsquo to 40rsquo

bull Challenges by downstream and environmental interests

bull Cachuma enlargement under consideration

SantaBarbaraCAgovWater38

Parties to the Agreement

bull City of Santa Barbarabull Carpinteria Valley Water Districtbull Goleta Water Districtbull Montecito Water Districtbull Santa Ynez River Water Conservation Districtbull SYRWCD Improvement District No 1

Consent and Acknowledgement by US Bureau of Reclamation

SantaBarbaraCAgovWater39

Pass Through Summer no inflow

Current volume (reflects on-going siltation since 1988)

1988 Reservoir volume

Note different siltation levels

SantaBarbaraCAgovWater40

Smaller Reservoir Spills Sooner1988 Reservoir volume

Current Reservoir volume

SantaBarbaraCAgovWater41

Difference is Stored in Cachuma as Gibraltar WaterBase Reservoir

Actual Reservoir

SantaBarbaraCAgovWater42

  • Long Term Water Supply Plan Adaptive Management
  • Overview
  • Historical Background
  • Historical Background
  • Historical Background
  • Slide Number 6
  • Water Supplies - Cachuma
  • Water Supplies - Cachuma
  • Water Supplies - Gibraltar
  • Water Supplies ndash Mission Tunnel
  • Water Supplies ndash State Water
  • Water Supplies ndash State Water
  • Water Supplies - Groundwater
  • Water Supplies ndash Groundwater
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Recycled Water Blending
  • Water Supplies - Desalination
  • Demand Management
  • Demand Projections
  • Water Supply Planning Target
  • Water Supply Planning Concepts
  • Water Supply Performance
  • Slide Number 25
  • Slide Number 26
  • Slide Number 27
  • Key Policy Issues
  • Next Steps
  • Discussion amp Feedback
  • Slide Number 31
  • Slide Number 32
  • Slide Number 33
  • Slide Number 34
  • Slide Number 35
  • Slide Number 36
  • Context of 1989 Agreement
  • Parties to the Agreement
  • Pass Through Summer no inflow
  • Smaller Reservoir Spills Sooner
  • Difference is Stored in Cachuma as Gibraltar Water
  • Slide Number 42
Page 23: PUBLIC WORKS DEPARTMENT WATER RESOURCES DIVISION …...mountain • Supply ranges from ... Water Supplies –State Water • A small, but useful part of our water supply • Both the
Gibraltar7400 AF
Cachuma9700 AF
Groundwater4500 AF
1980s
1980s Water Supply(AF of Capacity)

SantaBarbaraCAgovWater6

City of Santa Barbara Water Demand(Acre Feet of Production by Calendar Year - Potable + Recycled)

0

2500

5000

7500

10000

12500

15000

17500

20000

1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010

Figure ___

Total System Production (AF)

12 Months Ending

13374

February 28 2011

Post-DroughtPre-Drought Drought

SantaBarbaraCAgovWater7

Water Supplies - Cachumabull Primary City

Water Supply

bull Multi-Year SourceA few dry years notan issue

bull 8277 AFYCurrent Entitlement

bull 7863 AFYProjected Entitlement (2030)

SantaBarbaraCAgovWater8

Water Supplies - Cachuma

0

50000

100000

150000

200000

250000

1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011Water Year

Historical StorageVolumes1987-1993 Period

Recent History of Lake Cachuma Storage Levels (AF)With 1987-1993 Period Shown for Comparison

Figure ____

SantaBarbaraCAgovWater9

Water Supplies - Gibraltarbull ldquoPass Throughrdquo

implementationin progress

bull Modelingunder review

bull Conservative planning assumptions used pending modeling results

bull Sedimentation management study planned

SantaBarbaraCAgovWater10

Water Supplies ndash Mission Tunnelbull Infiltration from

percolating groundwateron both sides of themountain

bull Supply ranges from500 to 2375 AFY

bull Average contribution1125 AFY

SantaBarbaraCAgovWater11

Water Supplies ndash State Waterbull A small but useful part of our water

supply

bull Both the water amp the pipeline have value

bull Cityrsquos maximum delivery amount - 3300 AFY

bull Deliveries subject to availability

SantaBarbaraCAgovWater12

Water Supplies ndash State Waterbull Projections based on DWR

modeling using long-term databull No Delta or storage

improvementsbull Environmental limits remain in

effectbull Climate change effects assumed

SantaBarbaraCAgovWater13

Water Supplies - Groundwater

SantaBarbaraCAgovWater14

Water Supplies ndash Groundwaterbull Pumping occurs in

Downtown amp OuterState Street areas

bull 1300 AFY safe yieldbull Average City pumping

assumed at ~1100 AFYbull Maximum of 4150 AFY during drought

Ortega Groundwater Treatment Plant

SantaBarbaraCAgovWater15

Water Supplies ndash Recycled WaterRecycled Water Distribution System

SantaBarbaraCAgovWater16

Water Supplies ndash Recycled Waterbull Displaces use of potable

water amp extends water supplybull Current connected

demand 800 AFYbull 300 AFY potential demand amp capacity identifiedbull Target demand 1100 AFYbull Blending an economical solution for reducing mineral

contentbull Policy issues related to blending

SantaBarbaraCAgovWater17

Water Supplies ndash Recycled Water

SantaBarbaraCAgovWater18

Recycled Water Blending bull Filterability (turbidity) - solution identifiedbull Mineral Content (salts) separate issue -

- Blending $180AF added operating cost- MFRO $341AF added cost + $46 million

capitalbull Proposed Policy ldquoContingency Plan to

eliminate blending with goal to be ready to implement plan based on economic regulatory or water supply requirementsrdquo

SantaBarbaraCAgovWater19

Water Supplies - Desalination

bull Reliable butexpensive source

bull $177 million toreactivate if needed

bull Important to keepfor use in case ofextended drought

bull Proposed Planning Goal Avoid use until year six of Critical Drought Period

SantaBarbaraCAgovWater20

Demand Managementbull Declining demand

- Best Management Practices (CUWCC)- Conservation Program- 20 x 2020- Plumbing Code amp Appliance Standards

bull Projected development - 800 to 900 AFY bull Water Conservation Technical Evaluation

SantaBarbaraCAgovWater21

Demand Projections

12000

12500

13000

13500

14000

14500

15000

2010 2012 2014 2016 2018 2020 2022 2024 2026 2028 2030

Plan SB Demand (No Plumbing Code or Conservation Effects)Plumbing Code Effects OnlyPlumbing Code + Program B20 X 2020 Trend Line20 X 2020 Regulatory Limit

Water System Demand Projections (AFY)

SantaBarbaraCAgovWater22

Water Supply Planning Target

Projected Demand 14000Safety Margin (10) + 1400

Water Supply Target = 15400 AFY

SantaBarbaraCAgovWater23

Water Supply Planning Conceptsbull Planning for 6-Year Critical Drought Periodbull Water Supply Modeling - Using Historical

Data with Current Water Supply Sources and Projected Demands

bull Ongoing Conservation vs Short Term Planned Demand Reductions for Extraordinary Situations

SantaBarbaraCAgovWater24

Water Supply Performance

SantaBarbaraCAgovWater25

SantaBarbaraCAgovWater26

SantaBarbaraCAgovWater27

SantaBarbaraCAgovWater28

Key Policy Issuesbull Achieve 20 x 2020 through BMPs Additional

Conservation Measures amp Recycled Waterbull Planning for a 6-Year Duration Critical Drought

- Manage supplies to avoid use of Desal until year six- Water Banking Purchases- Planned Demand Reductions 10 to 15- Recycled Water Expansion

bull Recycled Water Blending bull Sedimentation Management

SantaBarbaraCAgovWater29

Next Stepsbull Finalize updated Long-Term Water

Supply Plan- April 11 Final Comments from Water

Commission- Environmental Review

bull Prepare Urban Water Management Plan Update per State Requirements

bull Target Adoption Date for LTWSP amp UWMP - June 14 2011

SantaBarbaraCAgovWater30

Discussion amp Feedback

SantaBarbaraCAgovWater31

SantaBarbaraCAgovWater32

SantaBarbaraCAgovWater33

SantaBarbaraCAgovWater34

SantaBarbaraCAgovWater35

SantaBarbaraCAgovWater36

Upper Santa Ynez River Operations Agreement(ldquoPass Through Agreementrdquo)

SantaBarbaraCAgovWater37

Context of 1989 Agreementbull City water supply shortage identified ndash Gibraltar

vulnerable to siltation

bull Solution Raise Gibraltar Dam 20rsquo to 40rsquo

bull Challenges by downstream and environmental interests

bull Cachuma enlargement under consideration

SantaBarbaraCAgovWater38

Parties to the Agreement

bull City of Santa Barbarabull Carpinteria Valley Water Districtbull Goleta Water Districtbull Montecito Water Districtbull Santa Ynez River Water Conservation Districtbull SYRWCD Improvement District No 1

Consent and Acknowledgement by US Bureau of Reclamation

SantaBarbaraCAgovWater39

Pass Through Summer no inflow

Current volume (reflects on-going siltation since 1988)

1988 Reservoir volume

Note different siltation levels

SantaBarbaraCAgovWater40

Smaller Reservoir Spills Sooner1988 Reservoir volume

Current Reservoir volume

SantaBarbaraCAgovWater41

Difference is Stored in Cachuma as Gibraltar WaterBase Reservoir

Actual Reservoir

SantaBarbaraCAgovWater42

  • Long Term Water Supply Plan Adaptive Management
  • Overview
  • Historical Background
  • Historical Background
  • Historical Background
  • Slide Number 6
  • Water Supplies - Cachuma
  • Water Supplies - Cachuma
  • Water Supplies - Gibraltar
  • Water Supplies ndash Mission Tunnel
  • Water Supplies ndash State Water
  • Water Supplies ndash State Water
  • Water Supplies - Groundwater
  • Water Supplies ndash Groundwater
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Recycled Water Blending
  • Water Supplies - Desalination
  • Demand Management
  • Demand Projections
  • Water Supply Planning Target
  • Water Supply Planning Concepts
  • Water Supply Performance
  • Slide Number 25
  • Slide Number 26
  • Slide Number 27
  • Key Policy Issues
  • Next Steps
  • Discussion amp Feedback
  • Slide Number 31
  • Slide Number 32
  • Slide Number 33
  • Slide Number 34
  • Slide Number 35
  • Slide Number 36
  • Context of 1989 Agreement
  • Parties to the Agreement
  • Pass Through Summer no inflow
  • Smaller Reservoir Spills Sooner
  • Difference is Stored in Cachuma as Gibraltar Water
  • Slide Number 42
Page 24: PUBLIC WORKS DEPARTMENT WATER RESOURCES DIVISION …...mountain • Supply ranges from ... Water Supplies –State Water • A small, but useful part of our water supply • Both the

SantaBarbaraCAgovWater6

City of Santa Barbara Water Demand(Acre Feet of Production by Calendar Year - Potable + Recycled)

0

2500

5000

7500

10000

12500

15000

17500

20000

1986 1987 1988 1989 1990 1991 1992 1993 1994 1995 1996 1997 1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010

Figure ___

Total System Production (AF)

12 Months Ending

13374

February 28 2011

Post-DroughtPre-Drought Drought

SantaBarbaraCAgovWater7

Water Supplies - Cachumabull Primary City

Water Supply

bull Multi-Year SourceA few dry years notan issue

bull 8277 AFYCurrent Entitlement

bull 7863 AFYProjected Entitlement (2030)

SantaBarbaraCAgovWater8

Water Supplies - Cachuma

0

50000

100000

150000

200000

250000

1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011Water Year

Historical StorageVolumes1987-1993 Period

Recent History of Lake Cachuma Storage Levels (AF)With 1987-1993 Period Shown for Comparison

Figure ____

SantaBarbaraCAgovWater9

Water Supplies - Gibraltarbull ldquoPass Throughrdquo

implementationin progress

bull Modelingunder review

bull Conservative planning assumptions used pending modeling results

bull Sedimentation management study planned

SantaBarbaraCAgovWater10

Water Supplies ndash Mission Tunnelbull Infiltration from

percolating groundwateron both sides of themountain

bull Supply ranges from500 to 2375 AFY

bull Average contribution1125 AFY

SantaBarbaraCAgovWater11

Water Supplies ndash State Waterbull A small but useful part of our water

supply

bull Both the water amp the pipeline have value

bull Cityrsquos maximum delivery amount - 3300 AFY

bull Deliveries subject to availability

SantaBarbaraCAgovWater12

Water Supplies ndash State Waterbull Projections based on DWR

modeling using long-term databull No Delta or storage

improvementsbull Environmental limits remain in

effectbull Climate change effects assumed

SantaBarbaraCAgovWater13

Water Supplies - Groundwater

SantaBarbaraCAgovWater14

Water Supplies ndash Groundwaterbull Pumping occurs in

Downtown amp OuterState Street areas

bull 1300 AFY safe yieldbull Average City pumping

assumed at ~1100 AFYbull Maximum of 4150 AFY during drought

Ortega Groundwater Treatment Plant

SantaBarbaraCAgovWater15

Water Supplies ndash Recycled WaterRecycled Water Distribution System

SantaBarbaraCAgovWater16

Water Supplies ndash Recycled Waterbull Displaces use of potable

water amp extends water supplybull Current connected

demand 800 AFYbull 300 AFY potential demand amp capacity identifiedbull Target demand 1100 AFYbull Blending an economical solution for reducing mineral

contentbull Policy issues related to blending

SantaBarbaraCAgovWater17

Water Supplies ndash Recycled Water

SantaBarbaraCAgovWater18

Recycled Water Blending bull Filterability (turbidity) - solution identifiedbull Mineral Content (salts) separate issue -

- Blending $180AF added operating cost- MFRO $341AF added cost + $46 million

capitalbull Proposed Policy ldquoContingency Plan to

eliminate blending with goal to be ready to implement plan based on economic regulatory or water supply requirementsrdquo

SantaBarbaraCAgovWater19

Water Supplies - Desalination

bull Reliable butexpensive source

bull $177 million toreactivate if needed

bull Important to keepfor use in case ofextended drought

bull Proposed Planning Goal Avoid use until year six of Critical Drought Period

SantaBarbaraCAgovWater20

Demand Managementbull Declining demand

- Best Management Practices (CUWCC)- Conservation Program- 20 x 2020- Plumbing Code amp Appliance Standards

bull Projected development - 800 to 900 AFY bull Water Conservation Technical Evaluation

SantaBarbaraCAgovWater21

Demand Projections

12000

12500

13000

13500

14000

14500

15000

2010 2012 2014 2016 2018 2020 2022 2024 2026 2028 2030

Plan SB Demand (No Plumbing Code or Conservation Effects)Plumbing Code Effects OnlyPlumbing Code + Program B20 X 2020 Trend Line20 X 2020 Regulatory Limit

Water System Demand Projections (AFY)

SantaBarbaraCAgovWater22

Water Supply Planning Target

Projected Demand 14000Safety Margin (10) + 1400

Water Supply Target = 15400 AFY

SantaBarbaraCAgovWater23

Water Supply Planning Conceptsbull Planning for 6-Year Critical Drought Periodbull Water Supply Modeling - Using Historical

Data with Current Water Supply Sources and Projected Demands

bull Ongoing Conservation vs Short Term Planned Demand Reductions for Extraordinary Situations

SantaBarbaraCAgovWater24

Water Supply Performance

SantaBarbaraCAgovWater25

SantaBarbaraCAgovWater26

SantaBarbaraCAgovWater27

SantaBarbaraCAgovWater28

Key Policy Issuesbull Achieve 20 x 2020 through BMPs Additional

Conservation Measures amp Recycled Waterbull Planning for a 6-Year Duration Critical Drought

- Manage supplies to avoid use of Desal until year six- Water Banking Purchases- Planned Demand Reductions 10 to 15- Recycled Water Expansion

bull Recycled Water Blending bull Sedimentation Management

SantaBarbaraCAgovWater29

Next Stepsbull Finalize updated Long-Term Water

Supply Plan- April 11 Final Comments from Water

Commission- Environmental Review

bull Prepare Urban Water Management Plan Update per State Requirements

bull Target Adoption Date for LTWSP amp UWMP - June 14 2011

SantaBarbaraCAgovWater30

Discussion amp Feedback

SantaBarbaraCAgovWater31

SantaBarbaraCAgovWater32

SantaBarbaraCAgovWater33

SantaBarbaraCAgovWater34

SantaBarbaraCAgovWater35

SantaBarbaraCAgovWater36

Upper Santa Ynez River Operations Agreement(ldquoPass Through Agreementrdquo)

SantaBarbaraCAgovWater37

Context of 1989 Agreementbull City water supply shortage identified ndash Gibraltar

vulnerable to siltation

bull Solution Raise Gibraltar Dam 20rsquo to 40rsquo

bull Challenges by downstream and environmental interests

bull Cachuma enlargement under consideration

SantaBarbaraCAgovWater38

Parties to the Agreement

bull City of Santa Barbarabull Carpinteria Valley Water Districtbull Goleta Water Districtbull Montecito Water Districtbull Santa Ynez River Water Conservation Districtbull SYRWCD Improvement District No 1

Consent and Acknowledgement by US Bureau of Reclamation

SantaBarbaraCAgovWater39

Pass Through Summer no inflow

Current volume (reflects on-going siltation since 1988)

1988 Reservoir volume

Note different siltation levels

SantaBarbaraCAgovWater40

Smaller Reservoir Spills Sooner1988 Reservoir volume

Current Reservoir volume

SantaBarbaraCAgovWater41

Difference is Stored in Cachuma as Gibraltar WaterBase Reservoir

Actual Reservoir

SantaBarbaraCAgovWater42

  • Long Term Water Supply Plan Adaptive Management
  • Overview
  • Historical Background
  • Historical Background
  • Historical Background
  • Slide Number 6
  • Water Supplies - Cachuma
  • Water Supplies - Cachuma
  • Water Supplies - Gibraltar
  • Water Supplies ndash Mission Tunnel
  • Water Supplies ndash State Water
  • Water Supplies ndash State Water
  • Water Supplies - Groundwater
  • Water Supplies ndash Groundwater
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Recycled Water Blending
  • Water Supplies - Desalination
  • Demand Management
  • Demand Projections
  • Water Supply Planning Target
  • Water Supply Planning Concepts
  • Water Supply Performance
  • Slide Number 25
  • Slide Number 26
  • Slide Number 27
  • Key Policy Issues
  • Next Steps
  • Discussion amp Feedback
  • Slide Number 31
  • Slide Number 32
  • Slide Number 33
  • Slide Number 34
  • Slide Number 35
  • Slide Number 36
  • Context of 1989 Agreement
  • Parties to the Agreement
  • Pass Through Summer no inflow
  • Smaller Reservoir Spills Sooner
  • Difference is Stored in Cachuma as Gibraltar Water
  • Slide Number 42
Page 25: PUBLIC WORKS DEPARTMENT WATER RESOURCES DIVISION …...mountain • Supply ranges from ... Water Supplies –State Water • A small, but useful part of our water supply • Both the

SantaBarbaraCAgovWater7

Water Supplies - Cachumabull Primary City

Water Supply

bull Multi-Year SourceA few dry years notan issue

bull 8277 AFYCurrent Entitlement

bull 7863 AFYProjected Entitlement (2030)

SantaBarbaraCAgovWater8

Water Supplies - Cachuma

0

50000

100000

150000

200000

250000

1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011Water Year

Historical StorageVolumes1987-1993 Period

Recent History of Lake Cachuma Storage Levels (AF)With 1987-1993 Period Shown for Comparison

Figure ____

SantaBarbaraCAgovWater9

Water Supplies - Gibraltarbull ldquoPass Throughrdquo

implementationin progress

bull Modelingunder review

bull Conservative planning assumptions used pending modeling results

bull Sedimentation management study planned

SantaBarbaraCAgovWater10

Water Supplies ndash Mission Tunnelbull Infiltration from

percolating groundwateron both sides of themountain

bull Supply ranges from500 to 2375 AFY

bull Average contribution1125 AFY

SantaBarbaraCAgovWater11

Water Supplies ndash State Waterbull A small but useful part of our water

supply

bull Both the water amp the pipeline have value

bull Cityrsquos maximum delivery amount - 3300 AFY

bull Deliveries subject to availability

SantaBarbaraCAgovWater12

Water Supplies ndash State Waterbull Projections based on DWR

modeling using long-term databull No Delta or storage

improvementsbull Environmental limits remain in

effectbull Climate change effects assumed

SantaBarbaraCAgovWater13

Water Supplies - Groundwater

SantaBarbaraCAgovWater14

Water Supplies ndash Groundwaterbull Pumping occurs in

Downtown amp OuterState Street areas

bull 1300 AFY safe yieldbull Average City pumping

assumed at ~1100 AFYbull Maximum of 4150 AFY during drought

Ortega Groundwater Treatment Plant

SantaBarbaraCAgovWater15

Water Supplies ndash Recycled WaterRecycled Water Distribution System

SantaBarbaraCAgovWater16

Water Supplies ndash Recycled Waterbull Displaces use of potable

water amp extends water supplybull Current connected

demand 800 AFYbull 300 AFY potential demand amp capacity identifiedbull Target demand 1100 AFYbull Blending an economical solution for reducing mineral

contentbull Policy issues related to blending

SantaBarbaraCAgovWater17

Water Supplies ndash Recycled Water

SantaBarbaraCAgovWater18

Recycled Water Blending bull Filterability (turbidity) - solution identifiedbull Mineral Content (salts) separate issue -

- Blending $180AF added operating cost- MFRO $341AF added cost + $46 million

capitalbull Proposed Policy ldquoContingency Plan to

eliminate blending with goal to be ready to implement plan based on economic regulatory or water supply requirementsrdquo

SantaBarbaraCAgovWater19

Water Supplies - Desalination

bull Reliable butexpensive source

bull $177 million toreactivate if needed

bull Important to keepfor use in case ofextended drought

bull Proposed Planning Goal Avoid use until year six of Critical Drought Period

SantaBarbaraCAgovWater20

Demand Managementbull Declining demand

- Best Management Practices (CUWCC)- Conservation Program- 20 x 2020- Plumbing Code amp Appliance Standards

bull Projected development - 800 to 900 AFY bull Water Conservation Technical Evaluation

SantaBarbaraCAgovWater21

Demand Projections

12000

12500

13000

13500

14000

14500

15000

2010 2012 2014 2016 2018 2020 2022 2024 2026 2028 2030

Plan SB Demand (No Plumbing Code or Conservation Effects)Plumbing Code Effects OnlyPlumbing Code + Program B20 X 2020 Trend Line20 X 2020 Regulatory Limit

Water System Demand Projections (AFY)

SantaBarbaraCAgovWater22

Water Supply Planning Target

Projected Demand 14000Safety Margin (10) + 1400

Water Supply Target = 15400 AFY

SantaBarbaraCAgovWater23

Water Supply Planning Conceptsbull Planning for 6-Year Critical Drought Periodbull Water Supply Modeling - Using Historical

Data with Current Water Supply Sources and Projected Demands

bull Ongoing Conservation vs Short Term Planned Demand Reductions for Extraordinary Situations

SantaBarbaraCAgovWater24

Water Supply Performance

SantaBarbaraCAgovWater25

SantaBarbaraCAgovWater26

SantaBarbaraCAgovWater27

SantaBarbaraCAgovWater28

Key Policy Issuesbull Achieve 20 x 2020 through BMPs Additional

Conservation Measures amp Recycled Waterbull Planning for a 6-Year Duration Critical Drought

- Manage supplies to avoid use of Desal until year six- Water Banking Purchases- Planned Demand Reductions 10 to 15- Recycled Water Expansion

bull Recycled Water Blending bull Sedimentation Management

SantaBarbaraCAgovWater29

Next Stepsbull Finalize updated Long-Term Water

Supply Plan- April 11 Final Comments from Water

Commission- Environmental Review

bull Prepare Urban Water Management Plan Update per State Requirements

bull Target Adoption Date for LTWSP amp UWMP - June 14 2011

SantaBarbaraCAgovWater30

Discussion amp Feedback

SantaBarbaraCAgovWater31

SantaBarbaraCAgovWater32

SantaBarbaraCAgovWater33

SantaBarbaraCAgovWater34

SantaBarbaraCAgovWater35

SantaBarbaraCAgovWater36

Upper Santa Ynez River Operations Agreement(ldquoPass Through Agreementrdquo)

SantaBarbaraCAgovWater37

Context of 1989 Agreementbull City water supply shortage identified ndash Gibraltar

vulnerable to siltation

bull Solution Raise Gibraltar Dam 20rsquo to 40rsquo

bull Challenges by downstream and environmental interests

bull Cachuma enlargement under consideration

SantaBarbaraCAgovWater38

Parties to the Agreement

bull City of Santa Barbarabull Carpinteria Valley Water Districtbull Goleta Water Districtbull Montecito Water Districtbull Santa Ynez River Water Conservation Districtbull SYRWCD Improvement District No 1

Consent and Acknowledgement by US Bureau of Reclamation

SantaBarbaraCAgovWater39

Pass Through Summer no inflow

Current volume (reflects on-going siltation since 1988)

1988 Reservoir volume

Note different siltation levels

SantaBarbaraCAgovWater40

Smaller Reservoir Spills Sooner1988 Reservoir volume

Current Reservoir volume

SantaBarbaraCAgovWater41

Difference is Stored in Cachuma as Gibraltar WaterBase Reservoir

Actual Reservoir

SantaBarbaraCAgovWater42

  • Long Term Water Supply Plan Adaptive Management
  • Overview
  • Historical Background
  • Historical Background
  • Historical Background
  • Slide Number 6
  • Water Supplies - Cachuma
  • Water Supplies - Cachuma
  • Water Supplies - Gibraltar
  • Water Supplies ndash Mission Tunnel
  • Water Supplies ndash State Water
  • Water Supplies ndash State Water
  • Water Supplies - Groundwater
  • Water Supplies ndash Groundwater
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Recycled Water Blending
  • Water Supplies - Desalination
  • Demand Management
  • Demand Projections
  • Water Supply Planning Target
  • Water Supply Planning Concepts
  • Water Supply Performance
  • Slide Number 25
  • Slide Number 26
  • Slide Number 27
  • Key Policy Issues
  • Next Steps
  • Discussion amp Feedback
  • Slide Number 31
  • Slide Number 32
  • Slide Number 33
  • Slide Number 34
  • Slide Number 35
  • Slide Number 36
  • Context of 1989 Agreement
  • Parties to the Agreement
  • Pass Through Summer no inflow
  • Smaller Reservoir Spills Sooner
  • Difference is Stored in Cachuma as Gibraltar Water
  • Slide Number 42
Page 26: PUBLIC WORKS DEPARTMENT WATER RESOURCES DIVISION …...mountain • Supply ranges from ... Water Supplies –State Water • A small, but useful part of our water supply • Both the

SantaBarbaraCAgovWater8

Water Supplies - Cachuma

0

50000

100000

150000

200000

250000

1998 1999 2000 2001 2002 2003 2004 2005 2006 2007 2008 2009 2010 2011Water Year

Historical StorageVolumes1987-1993 Period

Recent History of Lake Cachuma Storage Levels (AF)With 1987-1993 Period Shown for Comparison

Figure ____

SantaBarbaraCAgovWater9

Water Supplies - Gibraltarbull ldquoPass Throughrdquo

implementationin progress

bull Modelingunder review

bull Conservative planning assumptions used pending modeling results

bull Sedimentation management study planned

SantaBarbaraCAgovWater10

Water Supplies ndash Mission Tunnelbull Infiltration from

percolating groundwateron both sides of themountain

bull Supply ranges from500 to 2375 AFY

bull Average contribution1125 AFY

SantaBarbaraCAgovWater11

Water Supplies ndash State Waterbull A small but useful part of our water

supply

bull Both the water amp the pipeline have value

bull Cityrsquos maximum delivery amount - 3300 AFY

bull Deliveries subject to availability

SantaBarbaraCAgovWater12

Water Supplies ndash State Waterbull Projections based on DWR

modeling using long-term databull No Delta or storage

improvementsbull Environmental limits remain in

effectbull Climate change effects assumed

SantaBarbaraCAgovWater13

Water Supplies - Groundwater

SantaBarbaraCAgovWater14

Water Supplies ndash Groundwaterbull Pumping occurs in

Downtown amp OuterState Street areas

bull 1300 AFY safe yieldbull Average City pumping

assumed at ~1100 AFYbull Maximum of 4150 AFY during drought

Ortega Groundwater Treatment Plant

SantaBarbaraCAgovWater15

Water Supplies ndash Recycled WaterRecycled Water Distribution System

SantaBarbaraCAgovWater16

Water Supplies ndash Recycled Waterbull Displaces use of potable

water amp extends water supplybull Current connected

demand 800 AFYbull 300 AFY potential demand amp capacity identifiedbull Target demand 1100 AFYbull Blending an economical solution for reducing mineral

contentbull Policy issues related to blending

SantaBarbaraCAgovWater17

Water Supplies ndash Recycled Water

SantaBarbaraCAgovWater18

Recycled Water Blending bull Filterability (turbidity) - solution identifiedbull Mineral Content (salts) separate issue -

- Blending $180AF added operating cost- MFRO $341AF added cost + $46 million

capitalbull Proposed Policy ldquoContingency Plan to

eliminate blending with goal to be ready to implement plan based on economic regulatory or water supply requirementsrdquo

SantaBarbaraCAgovWater19

Water Supplies - Desalination

bull Reliable butexpensive source

bull $177 million toreactivate if needed

bull Important to keepfor use in case ofextended drought

bull Proposed Planning Goal Avoid use until year six of Critical Drought Period

SantaBarbaraCAgovWater20

Demand Managementbull Declining demand

- Best Management Practices (CUWCC)- Conservation Program- 20 x 2020- Plumbing Code amp Appliance Standards

bull Projected development - 800 to 900 AFY bull Water Conservation Technical Evaluation

SantaBarbaraCAgovWater21

Demand Projections

12000

12500

13000

13500

14000

14500

15000

2010 2012 2014 2016 2018 2020 2022 2024 2026 2028 2030

Plan SB Demand (No Plumbing Code or Conservation Effects)Plumbing Code Effects OnlyPlumbing Code + Program B20 X 2020 Trend Line20 X 2020 Regulatory Limit

Water System Demand Projections (AFY)

SantaBarbaraCAgovWater22

Water Supply Planning Target

Projected Demand 14000Safety Margin (10) + 1400

Water Supply Target = 15400 AFY

SantaBarbaraCAgovWater23

Water Supply Planning Conceptsbull Planning for 6-Year Critical Drought Periodbull Water Supply Modeling - Using Historical

Data with Current Water Supply Sources and Projected Demands

bull Ongoing Conservation vs Short Term Planned Demand Reductions for Extraordinary Situations

SantaBarbaraCAgovWater24

Water Supply Performance

SantaBarbaraCAgovWater25

SantaBarbaraCAgovWater26

SantaBarbaraCAgovWater27

SantaBarbaraCAgovWater28

Key Policy Issuesbull Achieve 20 x 2020 through BMPs Additional

Conservation Measures amp Recycled Waterbull Planning for a 6-Year Duration Critical Drought

- Manage supplies to avoid use of Desal until year six- Water Banking Purchases- Planned Demand Reductions 10 to 15- Recycled Water Expansion

bull Recycled Water Blending bull Sedimentation Management

SantaBarbaraCAgovWater29

Next Stepsbull Finalize updated Long-Term Water

Supply Plan- April 11 Final Comments from Water

Commission- Environmental Review

bull Prepare Urban Water Management Plan Update per State Requirements

bull Target Adoption Date for LTWSP amp UWMP - June 14 2011

SantaBarbaraCAgovWater30

Discussion amp Feedback

SantaBarbaraCAgovWater31

SantaBarbaraCAgovWater32

SantaBarbaraCAgovWater33

SantaBarbaraCAgovWater34

SantaBarbaraCAgovWater35

SantaBarbaraCAgovWater36

Upper Santa Ynez River Operations Agreement(ldquoPass Through Agreementrdquo)

SantaBarbaraCAgovWater37

Context of 1989 Agreementbull City water supply shortage identified ndash Gibraltar

vulnerable to siltation

bull Solution Raise Gibraltar Dam 20rsquo to 40rsquo

bull Challenges by downstream and environmental interests

bull Cachuma enlargement under consideration

SantaBarbaraCAgovWater38

Parties to the Agreement

bull City of Santa Barbarabull Carpinteria Valley Water Districtbull Goleta Water Districtbull Montecito Water Districtbull Santa Ynez River Water Conservation Districtbull SYRWCD Improvement District No 1

Consent and Acknowledgement by US Bureau of Reclamation

SantaBarbaraCAgovWater39

Pass Through Summer no inflow

Current volume (reflects on-going siltation since 1988)

1988 Reservoir volume

Note different siltation levels

SantaBarbaraCAgovWater40

Smaller Reservoir Spills Sooner1988 Reservoir volume

Current Reservoir volume

SantaBarbaraCAgovWater41

Difference is Stored in Cachuma as Gibraltar WaterBase Reservoir

Actual Reservoir

SantaBarbaraCAgovWater42

  • Long Term Water Supply Plan Adaptive Management
  • Overview
  • Historical Background
  • Historical Background
  • Historical Background
  • Slide Number 6
  • Water Supplies - Cachuma
  • Water Supplies - Cachuma
  • Water Supplies - Gibraltar
  • Water Supplies ndash Mission Tunnel
  • Water Supplies ndash State Water
  • Water Supplies ndash State Water
  • Water Supplies - Groundwater
  • Water Supplies ndash Groundwater
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Recycled Water Blending
  • Water Supplies - Desalination
  • Demand Management
  • Demand Projections
  • Water Supply Planning Target
  • Water Supply Planning Concepts
  • Water Supply Performance
  • Slide Number 25
  • Slide Number 26
  • Slide Number 27
  • Key Policy Issues
  • Next Steps
  • Discussion amp Feedback
  • Slide Number 31
  • Slide Number 32
  • Slide Number 33
  • Slide Number 34
  • Slide Number 35
  • Slide Number 36
  • Context of 1989 Agreement
  • Parties to the Agreement
  • Pass Through Summer no inflow
  • Smaller Reservoir Spills Sooner
  • Difference is Stored in Cachuma as Gibraltar Water
  • Slide Number 42
Page 27: PUBLIC WORKS DEPARTMENT WATER RESOURCES DIVISION …...mountain • Supply ranges from ... Water Supplies –State Water • A small, but useful part of our water supply • Both the

SantaBarbaraCAgovWater9

Water Supplies - Gibraltarbull ldquoPass Throughrdquo

implementationin progress

bull Modelingunder review

bull Conservative planning assumptions used pending modeling results

bull Sedimentation management study planned

SantaBarbaraCAgovWater10

Water Supplies ndash Mission Tunnelbull Infiltration from

percolating groundwateron both sides of themountain

bull Supply ranges from500 to 2375 AFY

bull Average contribution1125 AFY

SantaBarbaraCAgovWater11

Water Supplies ndash State Waterbull A small but useful part of our water

supply

bull Both the water amp the pipeline have value

bull Cityrsquos maximum delivery amount - 3300 AFY

bull Deliveries subject to availability

SantaBarbaraCAgovWater12

Water Supplies ndash State Waterbull Projections based on DWR

modeling using long-term databull No Delta or storage

improvementsbull Environmental limits remain in

effectbull Climate change effects assumed

SantaBarbaraCAgovWater13

Water Supplies - Groundwater

SantaBarbaraCAgovWater14

Water Supplies ndash Groundwaterbull Pumping occurs in

Downtown amp OuterState Street areas

bull 1300 AFY safe yieldbull Average City pumping

assumed at ~1100 AFYbull Maximum of 4150 AFY during drought

Ortega Groundwater Treatment Plant

SantaBarbaraCAgovWater15

Water Supplies ndash Recycled WaterRecycled Water Distribution System

SantaBarbaraCAgovWater16

Water Supplies ndash Recycled Waterbull Displaces use of potable

water amp extends water supplybull Current connected

demand 800 AFYbull 300 AFY potential demand amp capacity identifiedbull Target demand 1100 AFYbull Blending an economical solution for reducing mineral

contentbull Policy issues related to blending

SantaBarbaraCAgovWater17

Water Supplies ndash Recycled Water

SantaBarbaraCAgovWater18

Recycled Water Blending bull Filterability (turbidity) - solution identifiedbull Mineral Content (salts) separate issue -

- Blending $180AF added operating cost- MFRO $341AF added cost + $46 million

capitalbull Proposed Policy ldquoContingency Plan to

eliminate blending with goal to be ready to implement plan based on economic regulatory or water supply requirementsrdquo

SantaBarbaraCAgovWater19

Water Supplies - Desalination

bull Reliable butexpensive source

bull $177 million toreactivate if needed

bull Important to keepfor use in case ofextended drought

bull Proposed Planning Goal Avoid use until year six of Critical Drought Period

SantaBarbaraCAgovWater20

Demand Managementbull Declining demand

- Best Management Practices (CUWCC)- Conservation Program- 20 x 2020- Plumbing Code amp Appliance Standards

bull Projected development - 800 to 900 AFY bull Water Conservation Technical Evaluation

SantaBarbaraCAgovWater21

Demand Projections

12000

12500

13000

13500

14000

14500

15000

2010 2012 2014 2016 2018 2020 2022 2024 2026 2028 2030

Plan SB Demand (No Plumbing Code or Conservation Effects)Plumbing Code Effects OnlyPlumbing Code + Program B20 X 2020 Trend Line20 X 2020 Regulatory Limit

Water System Demand Projections (AFY)

SantaBarbaraCAgovWater22

Water Supply Planning Target

Projected Demand 14000Safety Margin (10) + 1400

Water Supply Target = 15400 AFY

SantaBarbaraCAgovWater23

Water Supply Planning Conceptsbull Planning for 6-Year Critical Drought Periodbull Water Supply Modeling - Using Historical

Data with Current Water Supply Sources and Projected Demands

bull Ongoing Conservation vs Short Term Planned Demand Reductions for Extraordinary Situations

SantaBarbaraCAgovWater24

Water Supply Performance

SantaBarbaraCAgovWater25

SantaBarbaraCAgovWater26

SantaBarbaraCAgovWater27

SantaBarbaraCAgovWater28

Key Policy Issuesbull Achieve 20 x 2020 through BMPs Additional

Conservation Measures amp Recycled Waterbull Planning for a 6-Year Duration Critical Drought

- Manage supplies to avoid use of Desal until year six- Water Banking Purchases- Planned Demand Reductions 10 to 15- Recycled Water Expansion

bull Recycled Water Blending bull Sedimentation Management

SantaBarbaraCAgovWater29

Next Stepsbull Finalize updated Long-Term Water

Supply Plan- April 11 Final Comments from Water

Commission- Environmental Review

bull Prepare Urban Water Management Plan Update per State Requirements

bull Target Adoption Date for LTWSP amp UWMP - June 14 2011

SantaBarbaraCAgovWater30

Discussion amp Feedback

SantaBarbaraCAgovWater31

SantaBarbaraCAgovWater32

SantaBarbaraCAgovWater33

SantaBarbaraCAgovWater34

SantaBarbaraCAgovWater35

SantaBarbaraCAgovWater36

Upper Santa Ynez River Operations Agreement(ldquoPass Through Agreementrdquo)

SantaBarbaraCAgovWater37

Context of 1989 Agreementbull City water supply shortage identified ndash Gibraltar

vulnerable to siltation

bull Solution Raise Gibraltar Dam 20rsquo to 40rsquo

bull Challenges by downstream and environmental interests

bull Cachuma enlargement under consideration

SantaBarbaraCAgovWater38

Parties to the Agreement

bull City of Santa Barbarabull Carpinteria Valley Water Districtbull Goleta Water Districtbull Montecito Water Districtbull Santa Ynez River Water Conservation Districtbull SYRWCD Improvement District No 1

Consent and Acknowledgement by US Bureau of Reclamation

SantaBarbaraCAgovWater39

Pass Through Summer no inflow

Current volume (reflects on-going siltation since 1988)

1988 Reservoir volume

Note different siltation levels

SantaBarbaraCAgovWater40

Smaller Reservoir Spills Sooner1988 Reservoir volume

Current Reservoir volume

SantaBarbaraCAgovWater41

Difference is Stored in Cachuma as Gibraltar WaterBase Reservoir

Actual Reservoir

SantaBarbaraCAgovWater42

  • Long Term Water Supply Plan Adaptive Management
  • Overview
  • Historical Background
  • Historical Background
  • Historical Background
  • Slide Number 6
  • Water Supplies - Cachuma
  • Water Supplies - Cachuma
  • Water Supplies - Gibraltar
  • Water Supplies ndash Mission Tunnel
  • Water Supplies ndash State Water
  • Water Supplies ndash State Water
  • Water Supplies - Groundwater
  • Water Supplies ndash Groundwater
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Recycled Water Blending
  • Water Supplies - Desalination
  • Demand Management
  • Demand Projections
  • Water Supply Planning Target
  • Water Supply Planning Concepts
  • Water Supply Performance
  • Slide Number 25
  • Slide Number 26
  • Slide Number 27
  • Key Policy Issues
  • Next Steps
  • Discussion amp Feedback
  • Slide Number 31
  • Slide Number 32
  • Slide Number 33
  • Slide Number 34
  • Slide Number 35
  • Slide Number 36
  • Context of 1989 Agreement
  • Parties to the Agreement
  • Pass Through Summer no inflow
  • Smaller Reservoir Spills Sooner
  • Difference is Stored in Cachuma as Gibraltar Water
  • Slide Number 42
Page 28: PUBLIC WORKS DEPARTMENT WATER RESOURCES DIVISION …...mountain • Supply ranges from ... Water Supplies –State Water • A small, but useful part of our water supply • Both the

SantaBarbaraCAgovWater10

Water Supplies ndash Mission Tunnelbull Infiltration from

percolating groundwateron both sides of themountain

bull Supply ranges from500 to 2375 AFY

bull Average contribution1125 AFY

SantaBarbaraCAgovWater11

Water Supplies ndash State Waterbull A small but useful part of our water

supply

bull Both the water amp the pipeline have value

bull Cityrsquos maximum delivery amount - 3300 AFY

bull Deliveries subject to availability

SantaBarbaraCAgovWater12

Water Supplies ndash State Waterbull Projections based on DWR

modeling using long-term databull No Delta or storage

improvementsbull Environmental limits remain in

effectbull Climate change effects assumed

SantaBarbaraCAgovWater13

Water Supplies - Groundwater

SantaBarbaraCAgovWater14

Water Supplies ndash Groundwaterbull Pumping occurs in

Downtown amp OuterState Street areas

bull 1300 AFY safe yieldbull Average City pumping

assumed at ~1100 AFYbull Maximum of 4150 AFY during drought

Ortega Groundwater Treatment Plant

SantaBarbaraCAgovWater15

Water Supplies ndash Recycled WaterRecycled Water Distribution System

SantaBarbaraCAgovWater16

Water Supplies ndash Recycled Waterbull Displaces use of potable

water amp extends water supplybull Current connected

demand 800 AFYbull 300 AFY potential demand amp capacity identifiedbull Target demand 1100 AFYbull Blending an economical solution for reducing mineral

contentbull Policy issues related to blending

SantaBarbaraCAgovWater17

Water Supplies ndash Recycled Water

SantaBarbaraCAgovWater18

Recycled Water Blending bull Filterability (turbidity) - solution identifiedbull Mineral Content (salts) separate issue -

- Blending $180AF added operating cost- MFRO $341AF added cost + $46 million

capitalbull Proposed Policy ldquoContingency Plan to

eliminate blending with goal to be ready to implement plan based on economic regulatory or water supply requirementsrdquo

SantaBarbaraCAgovWater19

Water Supplies - Desalination

bull Reliable butexpensive source

bull $177 million toreactivate if needed

bull Important to keepfor use in case ofextended drought

bull Proposed Planning Goal Avoid use until year six of Critical Drought Period

SantaBarbaraCAgovWater20

Demand Managementbull Declining demand

- Best Management Practices (CUWCC)- Conservation Program- 20 x 2020- Plumbing Code amp Appliance Standards

bull Projected development - 800 to 900 AFY bull Water Conservation Technical Evaluation

SantaBarbaraCAgovWater21

Demand Projections

12000

12500

13000

13500

14000

14500

15000

2010 2012 2014 2016 2018 2020 2022 2024 2026 2028 2030

Plan SB Demand (No Plumbing Code or Conservation Effects)Plumbing Code Effects OnlyPlumbing Code + Program B20 X 2020 Trend Line20 X 2020 Regulatory Limit

Water System Demand Projections (AFY)

SantaBarbaraCAgovWater22

Water Supply Planning Target

Projected Demand 14000Safety Margin (10) + 1400

Water Supply Target = 15400 AFY

SantaBarbaraCAgovWater23

Water Supply Planning Conceptsbull Planning for 6-Year Critical Drought Periodbull Water Supply Modeling - Using Historical

Data with Current Water Supply Sources and Projected Demands

bull Ongoing Conservation vs Short Term Planned Demand Reductions for Extraordinary Situations

SantaBarbaraCAgovWater24

Water Supply Performance

SantaBarbaraCAgovWater25

SantaBarbaraCAgovWater26

SantaBarbaraCAgovWater27

SantaBarbaraCAgovWater28

Key Policy Issuesbull Achieve 20 x 2020 through BMPs Additional

Conservation Measures amp Recycled Waterbull Planning for a 6-Year Duration Critical Drought

- Manage supplies to avoid use of Desal until year six- Water Banking Purchases- Planned Demand Reductions 10 to 15- Recycled Water Expansion

bull Recycled Water Blending bull Sedimentation Management

SantaBarbaraCAgovWater29

Next Stepsbull Finalize updated Long-Term Water

Supply Plan- April 11 Final Comments from Water

Commission- Environmental Review

bull Prepare Urban Water Management Plan Update per State Requirements

bull Target Adoption Date for LTWSP amp UWMP - June 14 2011

SantaBarbaraCAgovWater30

Discussion amp Feedback

SantaBarbaraCAgovWater31

SantaBarbaraCAgovWater32

SantaBarbaraCAgovWater33

SantaBarbaraCAgovWater34

SantaBarbaraCAgovWater35

SantaBarbaraCAgovWater36

Upper Santa Ynez River Operations Agreement(ldquoPass Through Agreementrdquo)

SantaBarbaraCAgovWater37

Context of 1989 Agreementbull City water supply shortage identified ndash Gibraltar

vulnerable to siltation

bull Solution Raise Gibraltar Dam 20rsquo to 40rsquo

bull Challenges by downstream and environmental interests

bull Cachuma enlargement under consideration

SantaBarbaraCAgovWater38

Parties to the Agreement

bull City of Santa Barbarabull Carpinteria Valley Water Districtbull Goleta Water Districtbull Montecito Water Districtbull Santa Ynez River Water Conservation Districtbull SYRWCD Improvement District No 1

Consent and Acknowledgement by US Bureau of Reclamation

SantaBarbaraCAgovWater39

Pass Through Summer no inflow

Current volume (reflects on-going siltation since 1988)

1988 Reservoir volume

Note different siltation levels

SantaBarbaraCAgovWater40

Smaller Reservoir Spills Sooner1988 Reservoir volume

Current Reservoir volume

SantaBarbaraCAgovWater41

Difference is Stored in Cachuma as Gibraltar WaterBase Reservoir

Actual Reservoir

SantaBarbaraCAgovWater42

  • Long Term Water Supply Plan Adaptive Management
  • Overview
  • Historical Background
  • Historical Background
  • Historical Background
  • Slide Number 6
  • Water Supplies - Cachuma
  • Water Supplies - Cachuma
  • Water Supplies - Gibraltar
  • Water Supplies ndash Mission Tunnel
  • Water Supplies ndash State Water
  • Water Supplies ndash State Water
  • Water Supplies - Groundwater
  • Water Supplies ndash Groundwater
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Recycled Water Blending
  • Water Supplies - Desalination
  • Demand Management
  • Demand Projections
  • Water Supply Planning Target
  • Water Supply Planning Concepts
  • Water Supply Performance
  • Slide Number 25
  • Slide Number 26
  • Slide Number 27
  • Key Policy Issues
  • Next Steps
  • Discussion amp Feedback
  • Slide Number 31
  • Slide Number 32
  • Slide Number 33
  • Slide Number 34
  • Slide Number 35
  • Slide Number 36
  • Context of 1989 Agreement
  • Parties to the Agreement
  • Pass Through Summer no inflow
  • Smaller Reservoir Spills Sooner
  • Difference is Stored in Cachuma as Gibraltar Water
  • Slide Number 42
Page 29: PUBLIC WORKS DEPARTMENT WATER RESOURCES DIVISION …...mountain • Supply ranges from ... Water Supplies –State Water • A small, but useful part of our water supply • Both the

SantaBarbaraCAgovWater11

Water Supplies ndash State Waterbull A small but useful part of our water

supply

bull Both the water amp the pipeline have value

bull Cityrsquos maximum delivery amount - 3300 AFY

bull Deliveries subject to availability

SantaBarbaraCAgovWater12

Water Supplies ndash State Waterbull Projections based on DWR

modeling using long-term databull No Delta or storage

improvementsbull Environmental limits remain in

effectbull Climate change effects assumed

SantaBarbaraCAgovWater13

Water Supplies - Groundwater

SantaBarbaraCAgovWater14

Water Supplies ndash Groundwaterbull Pumping occurs in

Downtown amp OuterState Street areas

bull 1300 AFY safe yieldbull Average City pumping

assumed at ~1100 AFYbull Maximum of 4150 AFY during drought

Ortega Groundwater Treatment Plant

SantaBarbaraCAgovWater15

Water Supplies ndash Recycled WaterRecycled Water Distribution System

SantaBarbaraCAgovWater16

Water Supplies ndash Recycled Waterbull Displaces use of potable

water amp extends water supplybull Current connected

demand 800 AFYbull 300 AFY potential demand amp capacity identifiedbull Target demand 1100 AFYbull Blending an economical solution for reducing mineral

contentbull Policy issues related to blending

SantaBarbaraCAgovWater17

Water Supplies ndash Recycled Water

SantaBarbaraCAgovWater18

Recycled Water Blending bull Filterability (turbidity) - solution identifiedbull Mineral Content (salts) separate issue -

- Blending $180AF added operating cost- MFRO $341AF added cost + $46 million

capitalbull Proposed Policy ldquoContingency Plan to

eliminate blending with goal to be ready to implement plan based on economic regulatory or water supply requirementsrdquo

SantaBarbaraCAgovWater19

Water Supplies - Desalination

bull Reliable butexpensive source

bull $177 million toreactivate if needed

bull Important to keepfor use in case ofextended drought

bull Proposed Planning Goal Avoid use until year six of Critical Drought Period

SantaBarbaraCAgovWater20

Demand Managementbull Declining demand

- Best Management Practices (CUWCC)- Conservation Program- 20 x 2020- Plumbing Code amp Appliance Standards

bull Projected development - 800 to 900 AFY bull Water Conservation Technical Evaluation

SantaBarbaraCAgovWater21

Demand Projections

12000

12500

13000

13500

14000

14500

15000

2010 2012 2014 2016 2018 2020 2022 2024 2026 2028 2030

Plan SB Demand (No Plumbing Code or Conservation Effects)Plumbing Code Effects OnlyPlumbing Code + Program B20 X 2020 Trend Line20 X 2020 Regulatory Limit

Water System Demand Projections (AFY)

SantaBarbaraCAgovWater22

Water Supply Planning Target

Projected Demand 14000Safety Margin (10) + 1400

Water Supply Target = 15400 AFY

SantaBarbaraCAgovWater23

Water Supply Planning Conceptsbull Planning for 6-Year Critical Drought Periodbull Water Supply Modeling - Using Historical

Data with Current Water Supply Sources and Projected Demands

bull Ongoing Conservation vs Short Term Planned Demand Reductions for Extraordinary Situations

SantaBarbaraCAgovWater24

Water Supply Performance

SantaBarbaraCAgovWater25

SantaBarbaraCAgovWater26

SantaBarbaraCAgovWater27

SantaBarbaraCAgovWater28

Key Policy Issuesbull Achieve 20 x 2020 through BMPs Additional

Conservation Measures amp Recycled Waterbull Planning for a 6-Year Duration Critical Drought

- Manage supplies to avoid use of Desal until year six- Water Banking Purchases- Planned Demand Reductions 10 to 15- Recycled Water Expansion

bull Recycled Water Blending bull Sedimentation Management

SantaBarbaraCAgovWater29

Next Stepsbull Finalize updated Long-Term Water

Supply Plan- April 11 Final Comments from Water

Commission- Environmental Review

bull Prepare Urban Water Management Plan Update per State Requirements

bull Target Adoption Date for LTWSP amp UWMP - June 14 2011

SantaBarbaraCAgovWater30

Discussion amp Feedback

SantaBarbaraCAgovWater31

SantaBarbaraCAgovWater32

SantaBarbaraCAgovWater33

SantaBarbaraCAgovWater34

SantaBarbaraCAgovWater35

SantaBarbaraCAgovWater36

Upper Santa Ynez River Operations Agreement(ldquoPass Through Agreementrdquo)

SantaBarbaraCAgovWater37

Context of 1989 Agreementbull City water supply shortage identified ndash Gibraltar

vulnerable to siltation

bull Solution Raise Gibraltar Dam 20rsquo to 40rsquo

bull Challenges by downstream and environmental interests

bull Cachuma enlargement under consideration

SantaBarbaraCAgovWater38

Parties to the Agreement

bull City of Santa Barbarabull Carpinteria Valley Water Districtbull Goleta Water Districtbull Montecito Water Districtbull Santa Ynez River Water Conservation Districtbull SYRWCD Improvement District No 1

Consent and Acknowledgement by US Bureau of Reclamation

SantaBarbaraCAgovWater39

Pass Through Summer no inflow

Current volume (reflects on-going siltation since 1988)

1988 Reservoir volume

Note different siltation levels

SantaBarbaraCAgovWater40

Smaller Reservoir Spills Sooner1988 Reservoir volume

Current Reservoir volume

SantaBarbaraCAgovWater41

Difference is Stored in Cachuma as Gibraltar WaterBase Reservoir

Actual Reservoir

SantaBarbaraCAgovWater42

  • Long Term Water Supply Plan Adaptive Management
  • Overview
  • Historical Background
  • Historical Background
  • Historical Background
  • Slide Number 6
  • Water Supplies - Cachuma
  • Water Supplies - Cachuma
  • Water Supplies - Gibraltar
  • Water Supplies ndash Mission Tunnel
  • Water Supplies ndash State Water
  • Water Supplies ndash State Water
  • Water Supplies - Groundwater
  • Water Supplies ndash Groundwater
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Recycled Water Blending
  • Water Supplies - Desalination
  • Demand Management
  • Demand Projections
  • Water Supply Planning Target
  • Water Supply Planning Concepts
  • Water Supply Performance
  • Slide Number 25
  • Slide Number 26
  • Slide Number 27
  • Key Policy Issues
  • Next Steps
  • Discussion amp Feedback
  • Slide Number 31
  • Slide Number 32
  • Slide Number 33
  • Slide Number 34
  • Slide Number 35
  • Slide Number 36
  • Context of 1989 Agreement
  • Parties to the Agreement
  • Pass Through Summer no inflow
  • Smaller Reservoir Spills Sooner
  • Difference is Stored in Cachuma as Gibraltar Water
  • Slide Number 42
Page 30: PUBLIC WORKS DEPARTMENT WATER RESOURCES DIVISION …...mountain • Supply ranges from ... Water Supplies –State Water • A small, but useful part of our water supply • Both the

SantaBarbaraCAgovWater12

Water Supplies ndash State Waterbull Projections based on DWR

modeling using long-term databull No Delta or storage

improvementsbull Environmental limits remain in

effectbull Climate change effects assumed

SantaBarbaraCAgovWater13

Water Supplies - Groundwater

SantaBarbaraCAgovWater14

Water Supplies ndash Groundwaterbull Pumping occurs in

Downtown amp OuterState Street areas

bull 1300 AFY safe yieldbull Average City pumping

assumed at ~1100 AFYbull Maximum of 4150 AFY during drought

Ortega Groundwater Treatment Plant

SantaBarbaraCAgovWater15

Water Supplies ndash Recycled WaterRecycled Water Distribution System

SantaBarbaraCAgovWater16

Water Supplies ndash Recycled Waterbull Displaces use of potable

water amp extends water supplybull Current connected

demand 800 AFYbull 300 AFY potential demand amp capacity identifiedbull Target demand 1100 AFYbull Blending an economical solution for reducing mineral

contentbull Policy issues related to blending

SantaBarbaraCAgovWater17

Water Supplies ndash Recycled Water

SantaBarbaraCAgovWater18

Recycled Water Blending bull Filterability (turbidity) - solution identifiedbull Mineral Content (salts) separate issue -

- Blending $180AF added operating cost- MFRO $341AF added cost + $46 million

capitalbull Proposed Policy ldquoContingency Plan to

eliminate blending with goal to be ready to implement plan based on economic regulatory or water supply requirementsrdquo

SantaBarbaraCAgovWater19

Water Supplies - Desalination

bull Reliable butexpensive source

bull $177 million toreactivate if needed

bull Important to keepfor use in case ofextended drought

bull Proposed Planning Goal Avoid use until year six of Critical Drought Period

SantaBarbaraCAgovWater20

Demand Managementbull Declining demand

- Best Management Practices (CUWCC)- Conservation Program- 20 x 2020- Plumbing Code amp Appliance Standards

bull Projected development - 800 to 900 AFY bull Water Conservation Technical Evaluation

SantaBarbaraCAgovWater21

Demand Projections

12000

12500

13000

13500

14000

14500

15000

2010 2012 2014 2016 2018 2020 2022 2024 2026 2028 2030

Plan SB Demand (No Plumbing Code or Conservation Effects)Plumbing Code Effects OnlyPlumbing Code + Program B20 X 2020 Trend Line20 X 2020 Regulatory Limit

Water System Demand Projections (AFY)

SantaBarbaraCAgovWater22

Water Supply Planning Target

Projected Demand 14000Safety Margin (10) + 1400

Water Supply Target = 15400 AFY

SantaBarbaraCAgovWater23

Water Supply Planning Conceptsbull Planning for 6-Year Critical Drought Periodbull Water Supply Modeling - Using Historical

Data with Current Water Supply Sources and Projected Demands

bull Ongoing Conservation vs Short Term Planned Demand Reductions for Extraordinary Situations

SantaBarbaraCAgovWater24

Water Supply Performance

SantaBarbaraCAgovWater25

SantaBarbaraCAgovWater26

SantaBarbaraCAgovWater27

SantaBarbaraCAgovWater28

Key Policy Issuesbull Achieve 20 x 2020 through BMPs Additional

Conservation Measures amp Recycled Waterbull Planning for a 6-Year Duration Critical Drought

- Manage supplies to avoid use of Desal until year six- Water Banking Purchases- Planned Demand Reductions 10 to 15- Recycled Water Expansion

bull Recycled Water Blending bull Sedimentation Management

SantaBarbaraCAgovWater29

Next Stepsbull Finalize updated Long-Term Water

Supply Plan- April 11 Final Comments from Water

Commission- Environmental Review

bull Prepare Urban Water Management Plan Update per State Requirements

bull Target Adoption Date for LTWSP amp UWMP - June 14 2011

SantaBarbaraCAgovWater30

Discussion amp Feedback

SantaBarbaraCAgovWater31

SantaBarbaraCAgovWater32

SantaBarbaraCAgovWater33

SantaBarbaraCAgovWater34

SantaBarbaraCAgovWater35

SantaBarbaraCAgovWater36

Upper Santa Ynez River Operations Agreement(ldquoPass Through Agreementrdquo)

SantaBarbaraCAgovWater37

Context of 1989 Agreementbull City water supply shortage identified ndash Gibraltar

vulnerable to siltation

bull Solution Raise Gibraltar Dam 20rsquo to 40rsquo

bull Challenges by downstream and environmental interests

bull Cachuma enlargement under consideration

SantaBarbaraCAgovWater38

Parties to the Agreement

bull City of Santa Barbarabull Carpinteria Valley Water Districtbull Goleta Water Districtbull Montecito Water Districtbull Santa Ynez River Water Conservation Districtbull SYRWCD Improvement District No 1

Consent and Acknowledgement by US Bureau of Reclamation

SantaBarbaraCAgovWater39

Pass Through Summer no inflow

Current volume (reflects on-going siltation since 1988)

1988 Reservoir volume

Note different siltation levels

SantaBarbaraCAgovWater40

Smaller Reservoir Spills Sooner1988 Reservoir volume

Current Reservoir volume

SantaBarbaraCAgovWater41

Difference is Stored in Cachuma as Gibraltar WaterBase Reservoir

Actual Reservoir

SantaBarbaraCAgovWater42

  • Long Term Water Supply Plan Adaptive Management
  • Overview
  • Historical Background
  • Historical Background
  • Historical Background
  • Slide Number 6
  • Water Supplies - Cachuma
  • Water Supplies - Cachuma
  • Water Supplies - Gibraltar
  • Water Supplies ndash Mission Tunnel
  • Water Supplies ndash State Water
  • Water Supplies ndash State Water
  • Water Supplies - Groundwater
  • Water Supplies ndash Groundwater
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Recycled Water Blending
  • Water Supplies - Desalination
  • Demand Management
  • Demand Projections
  • Water Supply Planning Target
  • Water Supply Planning Concepts
  • Water Supply Performance
  • Slide Number 25
  • Slide Number 26
  • Slide Number 27
  • Key Policy Issues
  • Next Steps
  • Discussion amp Feedback
  • Slide Number 31
  • Slide Number 32
  • Slide Number 33
  • Slide Number 34
  • Slide Number 35
  • Slide Number 36
  • Context of 1989 Agreement
  • Parties to the Agreement
  • Pass Through Summer no inflow
  • Smaller Reservoir Spills Sooner
  • Difference is Stored in Cachuma as Gibraltar Water
  • Slide Number 42
Page 31: PUBLIC WORKS DEPARTMENT WATER RESOURCES DIVISION …...mountain • Supply ranges from ... Water Supplies –State Water • A small, but useful part of our water supply • Both the

SantaBarbaraCAgovWater13

Water Supplies - Groundwater

SantaBarbaraCAgovWater14

Water Supplies ndash Groundwaterbull Pumping occurs in

Downtown amp OuterState Street areas

bull 1300 AFY safe yieldbull Average City pumping

assumed at ~1100 AFYbull Maximum of 4150 AFY during drought

Ortega Groundwater Treatment Plant

SantaBarbaraCAgovWater15

Water Supplies ndash Recycled WaterRecycled Water Distribution System

SantaBarbaraCAgovWater16

Water Supplies ndash Recycled Waterbull Displaces use of potable

water amp extends water supplybull Current connected

demand 800 AFYbull 300 AFY potential demand amp capacity identifiedbull Target demand 1100 AFYbull Blending an economical solution for reducing mineral

contentbull Policy issues related to blending

SantaBarbaraCAgovWater17

Water Supplies ndash Recycled Water

SantaBarbaraCAgovWater18

Recycled Water Blending bull Filterability (turbidity) - solution identifiedbull Mineral Content (salts) separate issue -

- Blending $180AF added operating cost- MFRO $341AF added cost + $46 million

capitalbull Proposed Policy ldquoContingency Plan to

eliminate blending with goal to be ready to implement plan based on economic regulatory or water supply requirementsrdquo

SantaBarbaraCAgovWater19

Water Supplies - Desalination

bull Reliable butexpensive source

bull $177 million toreactivate if needed

bull Important to keepfor use in case ofextended drought

bull Proposed Planning Goal Avoid use until year six of Critical Drought Period

SantaBarbaraCAgovWater20

Demand Managementbull Declining demand

- Best Management Practices (CUWCC)- Conservation Program- 20 x 2020- Plumbing Code amp Appliance Standards

bull Projected development - 800 to 900 AFY bull Water Conservation Technical Evaluation

SantaBarbaraCAgovWater21

Demand Projections

12000

12500

13000

13500

14000

14500

15000

2010 2012 2014 2016 2018 2020 2022 2024 2026 2028 2030

Plan SB Demand (No Plumbing Code or Conservation Effects)Plumbing Code Effects OnlyPlumbing Code + Program B20 X 2020 Trend Line20 X 2020 Regulatory Limit

Water System Demand Projections (AFY)

SantaBarbaraCAgovWater22

Water Supply Planning Target

Projected Demand 14000Safety Margin (10) + 1400

Water Supply Target = 15400 AFY

SantaBarbaraCAgovWater23

Water Supply Planning Conceptsbull Planning for 6-Year Critical Drought Periodbull Water Supply Modeling - Using Historical

Data with Current Water Supply Sources and Projected Demands

bull Ongoing Conservation vs Short Term Planned Demand Reductions for Extraordinary Situations

SantaBarbaraCAgovWater24

Water Supply Performance

SantaBarbaraCAgovWater25

SantaBarbaraCAgovWater26

SantaBarbaraCAgovWater27

SantaBarbaraCAgovWater28

Key Policy Issuesbull Achieve 20 x 2020 through BMPs Additional

Conservation Measures amp Recycled Waterbull Planning for a 6-Year Duration Critical Drought

- Manage supplies to avoid use of Desal until year six- Water Banking Purchases- Planned Demand Reductions 10 to 15- Recycled Water Expansion

bull Recycled Water Blending bull Sedimentation Management

SantaBarbaraCAgovWater29

Next Stepsbull Finalize updated Long-Term Water

Supply Plan- April 11 Final Comments from Water

Commission- Environmental Review

bull Prepare Urban Water Management Plan Update per State Requirements

bull Target Adoption Date for LTWSP amp UWMP - June 14 2011

SantaBarbaraCAgovWater30

Discussion amp Feedback

SantaBarbaraCAgovWater31

SantaBarbaraCAgovWater32

SantaBarbaraCAgovWater33

SantaBarbaraCAgovWater34

SantaBarbaraCAgovWater35

SantaBarbaraCAgovWater36

Upper Santa Ynez River Operations Agreement(ldquoPass Through Agreementrdquo)

SantaBarbaraCAgovWater37

Context of 1989 Agreementbull City water supply shortage identified ndash Gibraltar

vulnerable to siltation

bull Solution Raise Gibraltar Dam 20rsquo to 40rsquo

bull Challenges by downstream and environmental interests

bull Cachuma enlargement under consideration

SantaBarbaraCAgovWater38

Parties to the Agreement

bull City of Santa Barbarabull Carpinteria Valley Water Districtbull Goleta Water Districtbull Montecito Water Districtbull Santa Ynez River Water Conservation Districtbull SYRWCD Improvement District No 1

Consent and Acknowledgement by US Bureau of Reclamation

SantaBarbaraCAgovWater39

Pass Through Summer no inflow

Current volume (reflects on-going siltation since 1988)

1988 Reservoir volume

Note different siltation levels

SantaBarbaraCAgovWater40

Smaller Reservoir Spills Sooner1988 Reservoir volume

Current Reservoir volume

SantaBarbaraCAgovWater41

Difference is Stored in Cachuma as Gibraltar WaterBase Reservoir

Actual Reservoir

SantaBarbaraCAgovWater42

  • Long Term Water Supply Plan Adaptive Management
  • Overview
  • Historical Background
  • Historical Background
  • Historical Background
  • Slide Number 6
  • Water Supplies - Cachuma
  • Water Supplies - Cachuma
  • Water Supplies - Gibraltar
  • Water Supplies ndash Mission Tunnel
  • Water Supplies ndash State Water
  • Water Supplies ndash State Water
  • Water Supplies - Groundwater
  • Water Supplies ndash Groundwater
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Recycled Water Blending
  • Water Supplies - Desalination
  • Demand Management
  • Demand Projections
  • Water Supply Planning Target
  • Water Supply Planning Concepts
  • Water Supply Performance
  • Slide Number 25
  • Slide Number 26
  • Slide Number 27
  • Key Policy Issues
  • Next Steps
  • Discussion amp Feedback
  • Slide Number 31
  • Slide Number 32
  • Slide Number 33
  • Slide Number 34
  • Slide Number 35
  • Slide Number 36
  • Context of 1989 Agreement
  • Parties to the Agreement
  • Pass Through Summer no inflow
  • Smaller Reservoir Spills Sooner
  • Difference is Stored in Cachuma as Gibraltar Water
  • Slide Number 42
Page 32: PUBLIC WORKS DEPARTMENT WATER RESOURCES DIVISION …...mountain • Supply ranges from ... Water Supplies –State Water • A small, but useful part of our water supply • Both the

SantaBarbaraCAgovWater14

Water Supplies ndash Groundwaterbull Pumping occurs in

Downtown amp OuterState Street areas

bull 1300 AFY safe yieldbull Average City pumping

assumed at ~1100 AFYbull Maximum of 4150 AFY during drought

Ortega Groundwater Treatment Plant

SantaBarbaraCAgovWater15

Water Supplies ndash Recycled WaterRecycled Water Distribution System

SantaBarbaraCAgovWater16

Water Supplies ndash Recycled Waterbull Displaces use of potable

water amp extends water supplybull Current connected

demand 800 AFYbull 300 AFY potential demand amp capacity identifiedbull Target demand 1100 AFYbull Blending an economical solution for reducing mineral

contentbull Policy issues related to blending

SantaBarbaraCAgovWater17

Water Supplies ndash Recycled Water

SantaBarbaraCAgovWater18

Recycled Water Blending bull Filterability (turbidity) - solution identifiedbull Mineral Content (salts) separate issue -

- Blending $180AF added operating cost- MFRO $341AF added cost + $46 million

capitalbull Proposed Policy ldquoContingency Plan to

eliminate blending with goal to be ready to implement plan based on economic regulatory or water supply requirementsrdquo

SantaBarbaraCAgovWater19

Water Supplies - Desalination

bull Reliable butexpensive source

bull $177 million toreactivate if needed

bull Important to keepfor use in case ofextended drought

bull Proposed Planning Goal Avoid use until year six of Critical Drought Period

SantaBarbaraCAgovWater20

Demand Managementbull Declining demand

- Best Management Practices (CUWCC)- Conservation Program- 20 x 2020- Plumbing Code amp Appliance Standards

bull Projected development - 800 to 900 AFY bull Water Conservation Technical Evaluation

SantaBarbaraCAgovWater21

Demand Projections

12000

12500

13000

13500

14000

14500

15000

2010 2012 2014 2016 2018 2020 2022 2024 2026 2028 2030

Plan SB Demand (No Plumbing Code or Conservation Effects)Plumbing Code Effects OnlyPlumbing Code + Program B20 X 2020 Trend Line20 X 2020 Regulatory Limit

Water System Demand Projections (AFY)

SantaBarbaraCAgovWater22

Water Supply Planning Target

Projected Demand 14000Safety Margin (10) + 1400

Water Supply Target = 15400 AFY

SantaBarbaraCAgovWater23

Water Supply Planning Conceptsbull Planning for 6-Year Critical Drought Periodbull Water Supply Modeling - Using Historical

Data with Current Water Supply Sources and Projected Demands

bull Ongoing Conservation vs Short Term Planned Demand Reductions for Extraordinary Situations

SantaBarbaraCAgovWater24

Water Supply Performance

SantaBarbaraCAgovWater25

SantaBarbaraCAgovWater26

SantaBarbaraCAgovWater27

SantaBarbaraCAgovWater28

Key Policy Issuesbull Achieve 20 x 2020 through BMPs Additional

Conservation Measures amp Recycled Waterbull Planning for a 6-Year Duration Critical Drought

- Manage supplies to avoid use of Desal until year six- Water Banking Purchases- Planned Demand Reductions 10 to 15- Recycled Water Expansion

bull Recycled Water Blending bull Sedimentation Management

SantaBarbaraCAgovWater29

Next Stepsbull Finalize updated Long-Term Water

Supply Plan- April 11 Final Comments from Water

Commission- Environmental Review

bull Prepare Urban Water Management Plan Update per State Requirements

bull Target Adoption Date for LTWSP amp UWMP - June 14 2011

SantaBarbaraCAgovWater30

Discussion amp Feedback

SantaBarbaraCAgovWater31

SantaBarbaraCAgovWater32

SantaBarbaraCAgovWater33

SantaBarbaraCAgovWater34

SantaBarbaraCAgovWater35

SantaBarbaraCAgovWater36

Upper Santa Ynez River Operations Agreement(ldquoPass Through Agreementrdquo)

SantaBarbaraCAgovWater37

Context of 1989 Agreementbull City water supply shortage identified ndash Gibraltar

vulnerable to siltation

bull Solution Raise Gibraltar Dam 20rsquo to 40rsquo

bull Challenges by downstream and environmental interests

bull Cachuma enlargement under consideration

SantaBarbaraCAgovWater38

Parties to the Agreement

bull City of Santa Barbarabull Carpinteria Valley Water Districtbull Goleta Water Districtbull Montecito Water Districtbull Santa Ynez River Water Conservation Districtbull SYRWCD Improvement District No 1

Consent and Acknowledgement by US Bureau of Reclamation

SantaBarbaraCAgovWater39

Pass Through Summer no inflow

Current volume (reflects on-going siltation since 1988)

1988 Reservoir volume

Note different siltation levels

SantaBarbaraCAgovWater40

Smaller Reservoir Spills Sooner1988 Reservoir volume

Current Reservoir volume

SantaBarbaraCAgovWater41

Difference is Stored in Cachuma as Gibraltar WaterBase Reservoir

Actual Reservoir

SantaBarbaraCAgovWater42

  • Long Term Water Supply Plan Adaptive Management
  • Overview
  • Historical Background
  • Historical Background
  • Historical Background
  • Slide Number 6
  • Water Supplies - Cachuma
  • Water Supplies - Cachuma
  • Water Supplies - Gibraltar
  • Water Supplies ndash Mission Tunnel
  • Water Supplies ndash State Water
  • Water Supplies ndash State Water
  • Water Supplies - Groundwater
  • Water Supplies ndash Groundwater
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Recycled Water Blending
  • Water Supplies - Desalination
  • Demand Management
  • Demand Projections
  • Water Supply Planning Target
  • Water Supply Planning Concepts
  • Water Supply Performance
  • Slide Number 25
  • Slide Number 26
  • Slide Number 27
  • Key Policy Issues
  • Next Steps
  • Discussion amp Feedback
  • Slide Number 31
  • Slide Number 32
  • Slide Number 33
  • Slide Number 34
  • Slide Number 35
  • Slide Number 36
  • Context of 1989 Agreement
  • Parties to the Agreement
  • Pass Through Summer no inflow
  • Smaller Reservoir Spills Sooner
  • Difference is Stored in Cachuma as Gibraltar Water
  • Slide Number 42
Page 33: PUBLIC WORKS DEPARTMENT WATER RESOURCES DIVISION …...mountain • Supply ranges from ... Water Supplies –State Water • A small, but useful part of our water supply • Both the

SantaBarbaraCAgovWater15

Water Supplies ndash Recycled WaterRecycled Water Distribution System

SantaBarbaraCAgovWater16

Water Supplies ndash Recycled Waterbull Displaces use of potable

water amp extends water supplybull Current connected

demand 800 AFYbull 300 AFY potential demand amp capacity identifiedbull Target demand 1100 AFYbull Blending an economical solution for reducing mineral

contentbull Policy issues related to blending

SantaBarbaraCAgovWater17

Water Supplies ndash Recycled Water

SantaBarbaraCAgovWater18

Recycled Water Blending bull Filterability (turbidity) - solution identifiedbull Mineral Content (salts) separate issue -

- Blending $180AF added operating cost- MFRO $341AF added cost + $46 million

capitalbull Proposed Policy ldquoContingency Plan to

eliminate blending with goal to be ready to implement plan based on economic regulatory or water supply requirementsrdquo

SantaBarbaraCAgovWater19

Water Supplies - Desalination

bull Reliable butexpensive source

bull $177 million toreactivate if needed

bull Important to keepfor use in case ofextended drought

bull Proposed Planning Goal Avoid use until year six of Critical Drought Period

SantaBarbaraCAgovWater20

Demand Managementbull Declining demand

- Best Management Practices (CUWCC)- Conservation Program- 20 x 2020- Plumbing Code amp Appliance Standards

bull Projected development - 800 to 900 AFY bull Water Conservation Technical Evaluation

SantaBarbaraCAgovWater21

Demand Projections

12000

12500

13000

13500

14000

14500

15000

2010 2012 2014 2016 2018 2020 2022 2024 2026 2028 2030

Plan SB Demand (No Plumbing Code or Conservation Effects)Plumbing Code Effects OnlyPlumbing Code + Program B20 X 2020 Trend Line20 X 2020 Regulatory Limit

Water System Demand Projections (AFY)

SantaBarbaraCAgovWater22

Water Supply Planning Target

Projected Demand 14000Safety Margin (10) + 1400

Water Supply Target = 15400 AFY

SantaBarbaraCAgovWater23

Water Supply Planning Conceptsbull Planning for 6-Year Critical Drought Periodbull Water Supply Modeling - Using Historical

Data with Current Water Supply Sources and Projected Demands

bull Ongoing Conservation vs Short Term Planned Demand Reductions for Extraordinary Situations

SantaBarbaraCAgovWater24

Water Supply Performance

SantaBarbaraCAgovWater25

SantaBarbaraCAgovWater26

SantaBarbaraCAgovWater27

SantaBarbaraCAgovWater28

Key Policy Issuesbull Achieve 20 x 2020 through BMPs Additional

Conservation Measures amp Recycled Waterbull Planning for a 6-Year Duration Critical Drought

- Manage supplies to avoid use of Desal until year six- Water Banking Purchases- Planned Demand Reductions 10 to 15- Recycled Water Expansion

bull Recycled Water Blending bull Sedimentation Management

SantaBarbaraCAgovWater29

Next Stepsbull Finalize updated Long-Term Water

Supply Plan- April 11 Final Comments from Water

Commission- Environmental Review

bull Prepare Urban Water Management Plan Update per State Requirements

bull Target Adoption Date for LTWSP amp UWMP - June 14 2011

SantaBarbaraCAgovWater30

Discussion amp Feedback

SantaBarbaraCAgovWater31

SantaBarbaraCAgovWater32

SantaBarbaraCAgovWater33

SantaBarbaraCAgovWater34

SantaBarbaraCAgovWater35

SantaBarbaraCAgovWater36

Upper Santa Ynez River Operations Agreement(ldquoPass Through Agreementrdquo)

SantaBarbaraCAgovWater37

Context of 1989 Agreementbull City water supply shortage identified ndash Gibraltar

vulnerable to siltation

bull Solution Raise Gibraltar Dam 20rsquo to 40rsquo

bull Challenges by downstream and environmental interests

bull Cachuma enlargement under consideration

SantaBarbaraCAgovWater38

Parties to the Agreement

bull City of Santa Barbarabull Carpinteria Valley Water Districtbull Goleta Water Districtbull Montecito Water Districtbull Santa Ynez River Water Conservation Districtbull SYRWCD Improvement District No 1

Consent and Acknowledgement by US Bureau of Reclamation

SantaBarbaraCAgovWater39

Pass Through Summer no inflow

Current volume (reflects on-going siltation since 1988)

1988 Reservoir volume

Note different siltation levels

SantaBarbaraCAgovWater40

Smaller Reservoir Spills Sooner1988 Reservoir volume

Current Reservoir volume

SantaBarbaraCAgovWater41

Difference is Stored in Cachuma as Gibraltar WaterBase Reservoir

Actual Reservoir

SantaBarbaraCAgovWater42

  • Long Term Water Supply Plan Adaptive Management
  • Overview
  • Historical Background
  • Historical Background
  • Historical Background
  • Slide Number 6
  • Water Supplies - Cachuma
  • Water Supplies - Cachuma
  • Water Supplies - Gibraltar
  • Water Supplies ndash Mission Tunnel
  • Water Supplies ndash State Water
  • Water Supplies ndash State Water
  • Water Supplies - Groundwater
  • Water Supplies ndash Groundwater
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Recycled Water Blending
  • Water Supplies - Desalination
  • Demand Management
  • Demand Projections
  • Water Supply Planning Target
  • Water Supply Planning Concepts
  • Water Supply Performance
  • Slide Number 25
  • Slide Number 26
  • Slide Number 27
  • Key Policy Issues
  • Next Steps
  • Discussion amp Feedback
  • Slide Number 31
  • Slide Number 32
  • Slide Number 33
  • Slide Number 34
  • Slide Number 35
  • Slide Number 36
  • Context of 1989 Agreement
  • Parties to the Agreement
  • Pass Through Summer no inflow
  • Smaller Reservoir Spills Sooner
  • Difference is Stored in Cachuma as Gibraltar Water
  • Slide Number 42
Page 34: PUBLIC WORKS DEPARTMENT WATER RESOURCES DIVISION …...mountain • Supply ranges from ... Water Supplies –State Water • A small, but useful part of our water supply • Both the

SantaBarbaraCAgovWater16

Water Supplies ndash Recycled Waterbull Displaces use of potable

water amp extends water supplybull Current connected

demand 800 AFYbull 300 AFY potential demand amp capacity identifiedbull Target demand 1100 AFYbull Blending an economical solution for reducing mineral

contentbull Policy issues related to blending

SantaBarbaraCAgovWater17

Water Supplies ndash Recycled Water

SantaBarbaraCAgovWater18

Recycled Water Blending bull Filterability (turbidity) - solution identifiedbull Mineral Content (salts) separate issue -

- Blending $180AF added operating cost- MFRO $341AF added cost + $46 million

capitalbull Proposed Policy ldquoContingency Plan to

eliminate blending with goal to be ready to implement plan based on economic regulatory or water supply requirementsrdquo

SantaBarbaraCAgovWater19

Water Supplies - Desalination

bull Reliable butexpensive source

bull $177 million toreactivate if needed

bull Important to keepfor use in case ofextended drought

bull Proposed Planning Goal Avoid use until year six of Critical Drought Period

SantaBarbaraCAgovWater20

Demand Managementbull Declining demand

- Best Management Practices (CUWCC)- Conservation Program- 20 x 2020- Plumbing Code amp Appliance Standards

bull Projected development - 800 to 900 AFY bull Water Conservation Technical Evaluation

SantaBarbaraCAgovWater21

Demand Projections

12000

12500

13000

13500

14000

14500

15000

2010 2012 2014 2016 2018 2020 2022 2024 2026 2028 2030

Plan SB Demand (No Plumbing Code or Conservation Effects)Plumbing Code Effects OnlyPlumbing Code + Program B20 X 2020 Trend Line20 X 2020 Regulatory Limit

Water System Demand Projections (AFY)

SantaBarbaraCAgovWater22

Water Supply Planning Target

Projected Demand 14000Safety Margin (10) + 1400

Water Supply Target = 15400 AFY

SantaBarbaraCAgovWater23

Water Supply Planning Conceptsbull Planning for 6-Year Critical Drought Periodbull Water Supply Modeling - Using Historical

Data with Current Water Supply Sources and Projected Demands

bull Ongoing Conservation vs Short Term Planned Demand Reductions for Extraordinary Situations

SantaBarbaraCAgovWater24

Water Supply Performance

SantaBarbaraCAgovWater25

SantaBarbaraCAgovWater26

SantaBarbaraCAgovWater27

SantaBarbaraCAgovWater28

Key Policy Issuesbull Achieve 20 x 2020 through BMPs Additional

Conservation Measures amp Recycled Waterbull Planning for a 6-Year Duration Critical Drought

- Manage supplies to avoid use of Desal until year six- Water Banking Purchases- Planned Demand Reductions 10 to 15- Recycled Water Expansion

bull Recycled Water Blending bull Sedimentation Management

SantaBarbaraCAgovWater29

Next Stepsbull Finalize updated Long-Term Water

Supply Plan- April 11 Final Comments from Water

Commission- Environmental Review

bull Prepare Urban Water Management Plan Update per State Requirements

bull Target Adoption Date for LTWSP amp UWMP - June 14 2011

SantaBarbaraCAgovWater30

Discussion amp Feedback

SantaBarbaraCAgovWater31

SantaBarbaraCAgovWater32

SantaBarbaraCAgovWater33

SantaBarbaraCAgovWater34

SantaBarbaraCAgovWater35

SantaBarbaraCAgovWater36

Upper Santa Ynez River Operations Agreement(ldquoPass Through Agreementrdquo)

SantaBarbaraCAgovWater37

Context of 1989 Agreementbull City water supply shortage identified ndash Gibraltar

vulnerable to siltation

bull Solution Raise Gibraltar Dam 20rsquo to 40rsquo

bull Challenges by downstream and environmental interests

bull Cachuma enlargement under consideration

SantaBarbaraCAgovWater38

Parties to the Agreement

bull City of Santa Barbarabull Carpinteria Valley Water Districtbull Goleta Water Districtbull Montecito Water Districtbull Santa Ynez River Water Conservation Districtbull SYRWCD Improvement District No 1

Consent and Acknowledgement by US Bureau of Reclamation

SantaBarbaraCAgovWater39

Pass Through Summer no inflow

Current volume (reflects on-going siltation since 1988)

1988 Reservoir volume

Note different siltation levels

SantaBarbaraCAgovWater40

Smaller Reservoir Spills Sooner1988 Reservoir volume

Current Reservoir volume

SantaBarbaraCAgovWater41

Difference is Stored in Cachuma as Gibraltar WaterBase Reservoir

Actual Reservoir

SantaBarbaraCAgovWater42

  • Long Term Water Supply Plan Adaptive Management
  • Overview
  • Historical Background
  • Historical Background
  • Historical Background
  • Slide Number 6
  • Water Supplies - Cachuma
  • Water Supplies - Cachuma
  • Water Supplies - Gibraltar
  • Water Supplies ndash Mission Tunnel
  • Water Supplies ndash State Water
  • Water Supplies ndash State Water
  • Water Supplies - Groundwater
  • Water Supplies ndash Groundwater
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Recycled Water Blending
  • Water Supplies - Desalination
  • Demand Management
  • Demand Projections
  • Water Supply Planning Target
  • Water Supply Planning Concepts
  • Water Supply Performance
  • Slide Number 25
  • Slide Number 26
  • Slide Number 27
  • Key Policy Issues
  • Next Steps
  • Discussion amp Feedback
  • Slide Number 31
  • Slide Number 32
  • Slide Number 33
  • Slide Number 34
  • Slide Number 35
  • Slide Number 36
  • Context of 1989 Agreement
  • Parties to the Agreement
  • Pass Through Summer no inflow
  • Smaller Reservoir Spills Sooner
  • Difference is Stored in Cachuma as Gibraltar Water
  • Slide Number 42
Page 35: PUBLIC WORKS DEPARTMENT WATER RESOURCES DIVISION …...mountain • Supply ranges from ... Water Supplies –State Water • A small, but useful part of our water supply • Both the

SantaBarbaraCAgovWater17

Water Supplies ndash Recycled Water

SantaBarbaraCAgovWater18

Recycled Water Blending bull Filterability (turbidity) - solution identifiedbull Mineral Content (salts) separate issue -

- Blending $180AF added operating cost- MFRO $341AF added cost + $46 million

capitalbull Proposed Policy ldquoContingency Plan to

eliminate blending with goal to be ready to implement plan based on economic regulatory or water supply requirementsrdquo

SantaBarbaraCAgovWater19

Water Supplies - Desalination

bull Reliable butexpensive source

bull $177 million toreactivate if needed

bull Important to keepfor use in case ofextended drought

bull Proposed Planning Goal Avoid use until year six of Critical Drought Period

SantaBarbaraCAgovWater20

Demand Managementbull Declining demand

- Best Management Practices (CUWCC)- Conservation Program- 20 x 2020- Plumbing Code amp Appliance Standards

bull Projected development - 800 to 900 AFY bull Water Conservation Technical Evaluation

SantaBarbaraCAgovWater21

Demand Projections

12000

12500

13000

13500

14000

14500

15000

2010 2012 2014 2016 2018 2020 2022 2024 2026 2028 2030

Plan SB Demand (No Plumbing Code or Conservation Effects)Plumbing Code Effects OnlyPlumbing Code + Program B20 X 2020 Trend Line20 X 2020 Regulatory Limit

Water System Demand Projections (AFY)

SantaBarbaraCAgovWater22

Water Supply Planning Target

Projected Demand 14000Safety Margin (10) + 1400

Water Supply Target = 15400 AFY

SantaBarbaraCAgovWater23

Water Supply Planning Conceptsbull Planning for 6-Year Critical Drought Periodbull Water Supply Modeling - Using Historical

Data with Current Water Supply Sources and Projected Demands

bull Ongoing Conservation vs Short Term Planned Demand Reductions for Extraordinary Situations

SantaBarbaraCAgovWater24

Water Supply Performance

SantaBarbaraCAgovWater25

SantaBarbaraCAgovWater26

SantaBarbaraCAgovWater27

SantaBarbaraCAgovWater28

Key Policy Issuesbull Achieve 20 x 2020 through BMPs Additional

Conservation Measures amp Recycled Waterbull Planning for a 6-Year Duration Critical Drought

- Manage supplies to avoid use of Desal until year six- Water Banking Purchases- Planned Demand Reductions 10 to 15- Recycled Water Expansion

bull Recycled Water Blending bull Sedimentation Management

SantaBarbaraCAgovWater29

Next Stepsbull Finalize updated Long-Term Water

Supply Plan- April 11 Final Comments from Water

Commission- Environmental Review

bull Prepare Urban Water Management Plan Update per State Requirements

bull Target Adoption Date for LTWSP amp UWMP - June 14 2011

SantaBarbaraCAgovWater30

Discussion amp Feedback

SantaBarbaraCAgovWater31

SantaBarbaraCAgovWater32

SantaBarbaraCAgovWater33

SantaBarbaraCAgovWater34

SantaBarbaraCAgovWater35

SantaBarbaraCAgovWater36

Upper Santa Ynez River Operations Agreement(ldquoPass Through Agreementrdquo)

SantaBarbaraCAgovWater37

Context of 1989 Agreementbull City water supply shortage identified ndash Gibraltar

vulnerable to siltation

bull Solution Raise Gibraltar Dam 20rsquo to 40rsquo

bull Challenges by downstream and environmental interests

bull Cachuma enlargement under consideration

SantaBarbaraCAgovWater38

Parties to the Agreement

bull City of Santa Barbarabull Carpinteria Valley Water Districtbull Goleta Water Districtbull Montecito Water Districtbull Santa Ynez River Water Conservation Districtbull SYRWCD Improvement District No 1

Consent and Acknowledgement by US Bureau of Reclamation

SantaBarbaraCAgovWater39

Pass Through Summer no inflow

Current volume (reflects on-going siltation since 1988)

1988 Reservoir volume

Note different siltation levels

SantaBarbaraCAgovWater40

Smaller Reservoir Spills Sooner1988 Reservoir volume

Current Reservoir volume

SantaBarbaraCAgovWater41

Difference is Stored in Cachuma as Gibraltar WaterBase Reservoir

Actual Reservoir

SantaBarbaraCAgovWater42

  • Long Term Water Supply Plan Adaptive Management
  • Overview
  • Historical Background
  • Historical Background
  • Historical Background
  • Slide Number 6
  • Water Supplies - Cachuma
  • Water Supplies - Cachuma
  • Water Supplies - Gibraltar
  • Water Supplies ndash Mission Tunnel
  • Water Supplies ndash State Water
  • Water Supplies ndash State Water
  • Water Supplies - Groundwater
  • Water Supplies ndash Groundwater
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Recycled Water Blending
  • Water Supplies - Desalination
  • Demand Management
  • Demand Projections
  • Water Supply Planning Target
  • Water Supply Planning Concepts
  • Water Supply Performance
  • Slide Number 25
  • Slide Number 26
  • Slide Number 27
  • Key Policy Issues
  • Next Steps
  • Discussion amp Feedback
  • Slide Number 31
  • Slide Number 32
  • Slide Number 33
  • Slide Number 34
  • Slide Number 35
  • Slide Number 36
  • Context of 1989 Agreement
  • Parties to the Agreement
  • Pass Through Summer no inflow
  • Smaller Reservoir Spills Sooner
  • Difference is Stored in Cachuma as Gibraltar Water
  • Slide Number 42
Page 36: PUBLIC WORKS DEPARTMENT WATER RESOURCES DIVISION …...mountain • Supply ranges from ... Water Supplies –State Water • A small, but useful part of our water supply • Both the

SantaBarbaraCAgovWater18

Recycled Water Blending bull Filterability (turbidity) - solution identifiedbull Mineral Content (salts) separate issue -

- Blending $180AF added operating cost- MFRO $341AF added cost + $46 million

capitalbull Proposed Policy ldquoContingency Plan to

eliminate blending with goal to be ready to implement plan based on economic regulatory or water supply requirementsrdquo

SantaBarbaraCAgovWater19

Water Supplies - Desalination

bull Reliable butexpensive source

bull $177 million toreactivate if needed

bull Important to keepfor use in case ofextended drought

bull Proposed Planning Goal Avoid use until year six of Critical Drought Period

SantaBarbaraCAgovWater20

Demand Managementbull Declining demand

- Best Management Practices (CUWCC)- Conservation Program- 20 x 2020- Plumbing Code amp Appliance Standards

bull Projected development - 800 to 900 AFY bull Water Conservation Technical Evaluation

SantaBarbaraCAgovWater21

Demand Projections

12000

12500

13000

13500

14000

14500

15000

2010 2012 2014 2016 2018 2020 2022 2024 2026 2028 2030

Plan SB Demand (No Plumbing Code or Conservation Effects)Plumbing Code Effects OnlyPlumbing Code + Program B20 X 2020 Trend Line20 X 2020 Regulatory Limit

Water System Demand Projections (AFY)

SantaBarbaraCAgovWater22

Water Supply Planning Target

Projected Demand 14000Safety Margin (10) + 1400

Water Supply Target = 15400 AFY

SantaBarbaraCAgovWater23

Water Supply Planning Conceptsbull Planning for 6-Year Critical Drought Periodbull Water Supply Modeling - Using Historical

Data with Current Water Supply Sources and Projected Demands

bull Ongoing Conservation vs Short Term Planned Demand Reductions for Extraordinary Situations

SantaBarbaraCAgovWater24

Water Supply Performance

SantaBarbaraCAgovWater25

SantaBarbaraCAgovWater26

SantaBarbaraCAgovWater27

SantaBarbaraCAgovWater28

Key Policy Issuesbull Achieve 20 x 2020 through BMPs Additional

Conservation Measures amp Recycled Waterbull Planning for a 6-Year Duration Critical Drought

- Manage supplies to avoid use of Desal until year six- Water Banking Purchases- Planned Demand Reductions 10 to 15- Recycled Water Expansion

bull Recycled Water Blending bull Sedimentation Management

SantaBarbaraCAgovWater29

Next Stepsbull Finalize updated Long-Term Water

Supply Plan- April 11 Final Comments from Water

Commission- Environmental Review

bull Prepare Urban Water Management Plan Update per State Requirements

bull Target Adoption Date for LTWSP amp UWMP - June 14 2011

SantaBarbaraCAgovWater30

Discussion amp Feedback

SantaBarbaraCAgovWater31

SantaBarbaraCAgovWater32

SantaBarbaraCAgovWater33

SantaBarbaraCAgovWater34

SantaBarbaraCAgovWater35

SantaBarbaraCAgovWater36

Upper Santa Ynez River Operations Agreement(ldquoPass Through Agreementrdquo)

SantaBarbaraCAgovWater37

Context of 1989 Agreementbull City water supply shortage identified ndash Gibraltar

vulnerable to siltation

bull Solution Raise Gibraltar Dam 20rsquo to 40rsquo

bull Challenges by downstream and environmental interests

bull Cachuma enlargement under consideration

SantaBarbaraCAgovWater38

Parties to the Agreement

bull City of Santa Barbarabull Carpinteria Valley Water Districtbull Goleta Water Districtbull Montecito Water Districtbull Santa Ynez River Water Conservation Districtbull SYRWCD Improvement District No 1

Consent and Acknowledgement by US Bureau of Reclamation

SantaBarbaraCAgovWater39

Pass Through Summer no inflow

Current volume (reflects on-going siltation since 1988)

1988 Reservoir volume

Note different siltation levels

SantaBarbaraCAgovWater40

Smaller Reservoir Spills Sooner1988 Reservoir volume

Current Reservoir volume

SantaBarbaraCAgovWater41

Difference is Stored in Cachuma as Gibraltar WaterBase Reservoir

Actual Reservoir

SantaBarbaraCAgovWater42

  • Long Term Water Supply Plan Adaptive Management
  • Overview
  • Historical Background
  • Historical Background
  • Historical Background
  • Slide Number 6
  • Water Supplies - Cachuma
  • Water Supplies - Cachuma
  • Water Supplies - Gibraltar
  • Water Supplies ndash Mission Tunnel
  • Water Supplies ndash State Water
  • Water Supplies ndash State Water
  • Water Supplies - Groundwater
  • Water Supplies ndash Groundwater
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Recycled Water Blending
  • Water Supplies - Desalination
  • Demand Management
  • Demand Projections
  • Water Supply Planning Target
  • Water Supply Planning Concepts
  • Water Supply Performance
  • Slide Number 25
  • Slide Number 26
  • Slide Number 27
  • Key Policy Issues
  • Next Steps
  • Discussion amp Feedback
  • Slide Number 31
  • Slide Number 32
  • Slide Number 33
  • Slide Number 34
  • Slide Number 35
  • Slide Number 36
  • Context of 1989 Agreement
  • Parties to the Agreement
  • Pass Through Summer no inflow
  • Smaller Reservoir Spills Sooner
  • Difference is Stored in Cachuma as Gibraltar Water
  • Slide Number 42
Page 37: PUBLIC WORKS DEPARTMENT WATER RESOURCES DIVISION …...mountain • Supply ranges from ... Water Supplies –State Water • A small, but useful part of our water supply • Both the

SantaBarbaraCAgovWater19

Water Supplies - Desalination

bull Reliable butexpensive source

bull $177 million toreactivate if needed

bull Important to keepfor use in case ofextended drought

bull Proposed Planning Goal Avoid use until year six of Critical Drought Period

SantaBarbaraCAgovWater20

Demand Managementbull Declining demand

- Best Management Practices (CUWCC)- Conservation Program- 20 x 2020- Plumbing Code amp Appliance Standards

bull Projected development - 800 to 900 AFY bull Water Conservation Technical Evaluation

SantaBarbaraCAgovWater21

Demand Projections

12000

12500

13000

13500

14000

14500

15000

2010 2012 2014 2016 2018 2020 2022 2024 2026 2028 2030

Plan SB Demand (No Plumbing Code or Conservation Effects)Plumbing Code Effects OnlyPlumbing Code + Program B20 X 2020 Trend Line20 X 2020 Regulatory Limit

Water System Demand Projections (AFY)

SantaBarbaraCAgovWater22

Water Supply Planning Target

Projected Demand 14000Safety Margin (10) + 1400

Water Supply Target = 15400 AFY

SantaBarbaraCAgovWater23

Water Supply Planning Conceptsbull Planning for 6-Year Critical Drought Periodbull Water Supply Modeling - Using Historical

Data with Current Water Supply Sources and Projected Demands

bull Ongoing Conservation vs Short Term Planned Demand Reductions for Extraordinary Situations

SantaBarbaraCAgovWater24

Water Supply Performance

SantaBarbaraCAgovWater25

SantaBarbaraCAgovWater26

SantaBarbaraCAgovWater27

SantaBarbaraCAgovWater28

Key Policy Issuesbull Achieve 20 x 2020 through BMPs Additional

Conservation Measures amp Recycled Waterbull Planning for a 6-Year Duration Critical Drought

- Manage supplies to avoid use of Desal until year six- Water Banking Purchases- Planned Demand Reductions 10 to 15- Recycled Water Expansion

bull Recycled Water Blending bull Sedimentation Management

SantaBarbaraCAgovWater29

Next Stepsbull Finalize updated Long-Term Water

Supply Plan- April 11 Final Comments from Water

Commission- Environmental Review

bull Prepare Urban Water Management Plan Update per State Requirements

bull Target Adoption Date for LTWSP amp UWMP - June 14 2011

SantaBarbaraCAgovWater30

Discussion amp Feedback

SantaBarbaraCAgovWater31

SantaBarbaraCAgovWater32

SantaBarbaraCAgovWater33

SantaBarbaraCAgovWater34

SantaBarbaraCAgovWater35

SantaBarbaraCAgovWater36

Upper Santa Ynez River Operations Agreement(ldquoPass Through Agreementrdquo)

SantaBarbaraCAgovWater37

Context of 1989 Agreementbull City water supply shortage identified ndash Gibraltar

vulnerable to siltation

bull Solution Raise Gibraltar Dam 20rsquo to 40rsquo

bull Challenges by downstream and environmental interests

bull Cachuma enlargement under consideration

SantaBarbaraCAgovWater38

Parties to the Agreement

bull City of Santa Barbarabull Carpinteria Valley Water Districtbull Goleta Water Districtbull Montecito Water Districtbull Santa Ynez River Water Conservation Districtbull SYRWCD Improvement District No 1

Consent and Acknowledgement by US Bureau of Reclamation

SantaBarbaraCAgovWater39

Pass Through Summer no inflow

Current volume (reflects on-going siltation since 1988)

1988 Reservoir volume

Note different siltation levels

SantaBarbaraCAgovWater40

Smaller Reservoir Spills Sooner1988 Reservoir volume

Current Reservoir volume

SantaBarbaraCAgovWater41

Difference is Stored in Cachuma as Gibraltar WaterBase Reservoir

Actual Reservoir

SantaBarbaraCAgovWater42

  • Long Term Water Supply Plan Adaptive Management
  • Overview
  • Historical Background
  • Historical Background
  • Historical Background
  • Slide Number 6
  • Water Supplies - Cachuma
  • Water Supplies - Cachuma
  • Water Supplies - Gibraltar
  • Water Supplies ndash Mission Tunnel
  • Water Supplies ndash State Water
  • Water Supplies ndash State Water
  • Water Supplies - Groundwater
  • Water Supplies ndash Groundwater
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Recycled Water Blending
  • Water Supplies - Desalination
  • Demand Management
  • Demand Projections
  • Water Supply Planning Target
  • Water Supply Planning Concepts
  • Water Supply Performance
  • Slide Number 25
  • Slide Number 26
  • Slide Number 27
  • Key Policy Issues
  • Next Steps
  • Discussion amp Feedback
  • Slide Number 31
  • Slide Number 32
  • Slide Number 33
  • Slide Number 34
  • Slide Number 35
  • Slide Number 36
  • Context of 1989 Agreement
  • Parties to the Agreement
  • Pass Through Summer no inflow
  • Smaller Reservoir Spills Sooner
  • Difference is Stored in Cachuma as Gibraltar Water
  • Slide Number 42
Page 38: PUBLIC WORKS DEPARTMENT WATER RESOURCES DIVISION …...mountain • Supply ranges from ... Water Supplies –State Water • A small, but useful part of our water supply • Both the

SantaBarbaraCAgovWater20

Demand Managementbull Declining demand

- Best Management Practices (CUWCC)- Conservation Program- 20 x 2020- Plumbing Code amp Appliance Standards

bull Projected development - 800 to 900 AFY bull Water Conservation Technical Evaluation

SantaBarbaraCAgovWater21

Demand Projections

12000

12500

13000

13500

14000

14500

15000

2010 2012 2014 2016 2018 2020 2022 2024 2026 2028 2030

Plan SB Demand (No Plumbing Code or Conservation Effects)Plumbing Code Effects OnlyPlumbing Code + Program B20 X 2020 Trend Line20 X 2020 Regulatory Limit

Water System Demand Projections (AFY)

SantaBarbaraCAgovWater22

Water Supply Planning Target

Projected Demand 14000Safety Margin (10) + 1400

Water Supply Target = 15400 AFY

SantaBarbaraCAgovWater23

Water Supply Planning Conceptsbull Planning for 6-Year Critical Drought Periodbull Water Supply Modeling - Using Historical

Data with Current Water Supply Sources and Projected Demands

bull Ongoing Conservation vs Short Term Planned Demand Reductions for Extraordinary Situations

SantaBarbaraCAgovWater24

Water Supply Performance

SantaBarbaraCAgovWater25

SantaBarbaraCAgovWater26

SantaBarbaraCAgovWater27

SantaBarbaraCAgovWater28

Key Policy Issuesbull Achieve 20 x 2020 through BMPs Additional

Conservation Measures amp Recycled Waterbull Planning for a 6-Year Duration Critical Drought

- Manage supplies to avoid use of Desal until year six- Water Banking Purchases- Planned Demand Reductions 10 to 15- Recycled Water Expansion

bull Recycled Water Blending bull Sedimentation Management

SantaBarbaraCAgovWater29

Next Stepsbull Finalize updated Long-Term Water

Supply Plan- April 11 Final Comments from Water

Commission- Environmental Review

bull Prepare Urban Water Management Plan Update per State Requirements

bull Target Adoption Date for LTWSP amp UWMP - June 14 2011

SantaBarbaraCAgovWater30

Discussion amp Feedback

SantaBarbaraCAgovWater31

SantaBarbaraCAgovWater32

SantaBarbaraCAgovWater33

SantaBarbaraCAgovWater34

SantaBarbaraCAgovWater35

SantaBarbaraCAgovWater36

Upper Santa Ynez River Operations Agreement(ldquoPass Through Agreementrdquo)

SantaBarbaraCAgovWater37

Context of 1989 Agreementbull City water supply shortage identified ndash Gibraltar

vulnerable to siltation

bull Solution Raise Gibraltar Dam 20rsquo to 40rsquo

bull Challenges by downstream and environmental interests

bull Cachuma enlargement under consideration

SantaBarbaraCAgovWater38

Parties to the Agreement

bull City of Santa Barbarabull Carpinteria Valley Water Districtbull Goleta Water Districtbull Montecito Water Districtbull Santa Ynez River Water Conservation Districtbull SYRWCD Improvement District No 1

Consent and Acknowledgement by US Bureau of Reclamation

SantaBarbaraCAgovWater39

Pass Through Summer no inflow

Current volume (reflects on-going siltation since 1988)

1988 Reservoir volume

Note different siltation levels

SantaBarbaraCAgovWater40

Smaller Reservoir Spills Sooner1988 Reservoir volume

Current Reservoir volume

SantaBarbaraCAgovWater41

Difference is Stored in Cachuma as Gibraltar WaterBase Reservoir

Actual Reservoir

SantaBarbaraCAgovWater42

  • Long Term Water Supply Plan Adaptive Management
  • Overview
  • Historical Background
  • Historical Background
  • Historical Background
  • Slide Number 6
  • Water Supplies - Cachuma
  • Water Supplies - Cachuma
  • Water Supplies - Gibraltar
  • Water Supplies ndash Mission Tunnel
  • Water Supplies ndash State Water
  • Water Supplies ndash State Water
  • Water Supplies - Groundwater
  • Water Supplies ndash Groundwater
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Recycled Water Blending
  • Water Supplies - Desalination
  • Demand Management
  • Demand Projections
  • Water Supply Planning Target
  • Water Supply Planning Concepts
  • Water Supply Performance
  • Slide Number 25
  • Slide Number 26
  • Slide Number 27
  • Key Policy Issues
  • Next Steps
  • Discussion amp Feedback
  • Slide Number 31
  • Slide Number 32
  • Slide Number 33
  • Slide Number 34
  • Slide Number 35
  • Slide Number 36
  • Context of 1989 Agreement
  • Parties to the Agreement
  • Pass Through Summer no inflow
  • Smaller Reservoir Spills Sooner
  • Difference is Stored in Cachuma as Gibraltar Water
  • Slide Number 42
Page 39: PUBLIC WORKS DEPARTMENT WATER RESOURCES DIVISION …...mountain • Supply ranges from ... Water Supplies –State Water • A small, but useful part of our water supply • Both the

SantaBarbaraCAgovWater21

Demand Projections

12000

12500

13000

13500

14000

14500

15000

2010 2012 2014 2016 2018 2020 2022 2024 2026 2028 2030

Plan SB Demand (No Plumbing Code or Conservation Effects)Plumbing Code Effects OnlyPlumbing Code + Program B20 X 2020 Trend Line20 X 2020 Regulatory Limit

Water System Demand Projections (AFY)

SantaBarbaraCAgovWater22

Water Supply Planning Target

Projected Demand 14000Safety Margin (10) + 1400

Water Supply Target = 15400 AFY

SantaBarbaraCAgovWater23

Water Supply Planning Conceptsbull Planning for 6-Year Critical Drought Periodbull Water Supply Modeling - Using Historical

Data with Current Water Supply Sources and Projected Demands

bull Ongoing Conservation vs Short Term Planned Demand Reductions for Extraordinary Situations

SantaBarbaraCAgovWater24

Water Supply Performance

SantaBarbaraCAgovWater25

SantaBarbaraCAgovWater26

SantaBarbaraCAgovWater27

SantaBarbaraCAgovWater28

Key Policy Issuesbull Achieve 20 x 2020 through BMPs Additional

Conservation Measures amp Recycled Waterbull Planning for a 6-Year Duration Critical Drought

- Manage supplies to avoid use of Desal until year six- Water Banking Purchases- Planned Demand Reductions 10 to 15- Recycled Water Expansion

bull Recycled Water Blending bull Sedimentation Management

SantaBarbaraCAgovWater29

Next Stepsbull Finalize updated Long-Term Water

Supply Plan- April 11 Final Comments from Water

Commission- Environmental Review

bull Prepare Urban Water Management Plan Update per State Requirements

bull Target Adoption Date for LTWSP amp UWMP - June 14 2011

SantaBarbaraCAgovWater30

Discussion amp Feedback

SantaBarbaraCAgovWater31

SantaBarbaraCAgovWater32

SantaBarbaraCAgovWater33

SantaBarbaraCAgovWater34

SantaBarbaraCAgovWater35

SantaBarbaraCAgovWater36

Upper Santa Ynez River Operations Agreement(ldquoPass Through Agreementrdquo)

SantaBarbaraCAgovWater37

Context of 1989 Agreementbull City water supply shortage identified ndash Gibraltar

vulnerable to siltation

bull Solution Raise Gibraltar Dam 20rsquo to 40rsquo

bull Challenges by downstream and environmental interests

bull Cachuma enlargement under consideration

SantaBarbaraCAgovWater38

Parties to the Agreement

bull City of Santa Barbarabull Carpinteria Valley Water Districtbull Goleta Water Districtbull Montecito Water Districtbull Santa Ynez River Water Conservation Districtbull SYRWCD Improvement District No 1

Consent and Acknowledgement by US Bureau of Reclamation

SantaBarbaraCAgovWater39

Pass Through Summer no inflow

Current volume (reflects on-going siltation since 1988)

1988 Reservoir volume

Note different siltation levels

SantaBarbaraCAgovWater40

Smaller Reservoir Spills Sooner1988 Reservoir volume

Current Reservoir volume

SantaBarbaraCAgovWater41

Difference is Stored in Cachuma as Gibraltar WaterBase Reservoir

Actual Reservoir

SantaBarbaraCAgovWater42

  • Long Term Water Supply Plan Adaptive Management
  • Overview
  • Historical Background
  • Historical Background
  • Historical Background
  • Slide Number 6
  • Water Supplies - Cachuma
  • Water Supplies - Cachuma
  • Water Supplies - Gibraltar
  • Water Supplies ndash Mission Tunnel
  • Water Supplies ndash State Water
  • Water Supplies ndash State Water
  • Water Supplies - Groundwater
  • Water Supplies ndash Groundwater
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Recycled Water Blending
  • Water Supplies - Desalination
  • Demand Management
  • Demand Projections
  • Water Supply Planning Target
  • Water Supply Planning Concepts
  • Water Supply Performance
  • Slide Number 25
  • Slide Number 26
  • Slide Number 27
  • Key Policy Issues
  • Next Steps
  • Discussion amp Feedback
  • Slide Number 31
  • Slide Number 32
  • Slide Number 33
  • Slide Number 34
  • Slide Number 35
  • Slide Number 36
  • Context of 1989 Agreement
  • Parties to the Agreement
  • Pass Through Summer no inflow
  • Smaller Reservoir Spills Sooner
  • Difference is Stored in Cachuma as Gibraltar Water
  • Slide Number 42
Page 40: PUBLIC WORKS DEPARTMENT WATER RESOURCES DIVISION …...mountain • Supply ranges from ... Water Supplies –State Water • A small, but useful part of our water supply • Both the

SantaBarbaraCAgovWater22

Water Supply Planning Target

Projected Demand 14000Safety Margin (10) + 1400

Water Supply Target = 15400 AFY

SantaBarbaraCAgovWater23

Water Supply Planning Conceptsbull Planning for 6-Year Critical Drought Periodbull Water Supply Modeling - Using Historical

Data with Current Water Supply Sources and Projected Demands

bull Ongoing Conservation vs Short Term Planned Demand Reductions for Extraordinary Situations

SantaBarbaraCAgovWater24

Water Supply Performance

SantaBarbaraCAgovWater25

SantaBarbaraCAgovWater26

SantaBarbaraCAgovWater27

SantaBarbaraCAgovWater28

Key Policy Issuesbull Achieve 20 x 2020 through BMPs Additional

Conservation Measures amp Recycled Waterbull Planning for a 6-Year Duration Critical Drought

- Manage supplies to avoid use of Desal until year six- Water Banking Purchases- Planned Demand Reductions 10 to 15- Recycled Water Expansion

bull Recycled Water Blending bull Sedimentation Management

SantaBarbaraCAgovWater29

Next Stepsbull Finalize updated Long-Term Water

Supply Plan- April 11 Final Comments from Water

Commission- Environmental Review

bull Prepare Urban Water Management Plan Update per State Requirements

bull Target Adoption Date for LTWSP amp UWMP - June 14 2011

SantaBarbaraCAgovWater30

Discussion amp Feedback

SantaBarbaraCAgovWater31

SantaBarbaraCAgovWater32

SantaBarbaraCAgovWater33

SantaBarbaraCAgovWater34

SantaBarbaraCAgovWater35

SantaBarbaraCAgovWater36

Upper Santa Ynez River Operations Agreement(ldquoPass Through Agreementrdquo)

SantaBarbaraCAgovWater37

Context of 1989 Agreementbull City water supply shortage identified ndash Gibraltar

vulnerable to siltation

bull Solution Raise Gibraltar Dam 20rsquo to 40rsquo

bull Challenges by downstream and environmental interests

bull Cachuma enlargement under consideration

SantaBarbaraCAgovWater38

Parties to the Agreement

bull City of Santa Barbarabull Carpinteria Valley Water Districtbull Goleta Water Districtbull Montecito Water Districtbull Santa Ynez River Water Conservation Districtbull SYRWCD Improvement District No 1

Consent and Acknowledgement by US Bureau of Reclamation

SantaBarbaraCAgovWater39

Pass Through Summer no inflow

Current volume (reflects on-going siltation since 1988)

1988 Reservoir volume

Note different siltation levels

SantaBarbaraCAgovWater40

Smaller Reservoir Spills Sooner1988 Reservoir volume

Current Reservoir volume

SantaBarbaraCAgovWater41

Difference is Stored in Cachuma as Gibraltar WaterBase Reservoir

Actual Reservoir

SantaBarbaraCAgovWater42

  • Long Term Water Supply Plan Adaptive Management
  • Overview
  • Historical Background
  • Historical Background
  • Historical Background
  • Slide Number 6
  • Water Supplies - Cachuma
  • Water Supplies - Cachuma
  • Water Supplies - Gibraltar
  • Water Supplies ndash Mission Tunnel
  • Water Supplies ndash State Water
  • Water Supplies ndash State Water
  • Water Supplies - Groundwater
  • Water Supplies ndash Groundwater
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Recycled Water Blending
  • Water Supplies - Desalination
  • Demand Management
  • Demand Projections
  • Water Supply Planning Target
  • Water Supply Planning Concepts
  • Water Supply Performance
  • Slide Number 25
  • Slide Number 26
  • Slide Number 27
  • Key Policy Issues
  • Next Steps
  • Discussion amp Feedback
  • Slide Number 31
  • Slide Number 32
  • Slide Number 33
  • Slide Number 34
  • Slide Number 35
  • Slide Number 36
  • Context of 1989 Agreement
  • Parties to the Agreement
  • Pass Through Summer no inflow
  • Smaller Reservoir Spills Sooner
  • Difference is Stored in Cachuma as Gibraltar Water
  • Slide Number 42
Page 41: PUBLIC WORKS DEPARTMENT WATER RESOURCES DIVISION …...mountain • Supply ranges from ... Water Supplies –State Water • A small, but useful part of our water supply • Both the

SantaBarbaraCAgovWater23

Water Supply Planning Conceptsbull Planning for 6-Year Critical Drought Periodbull Water Supply Modeling - Using Historical

Data with Current Water Supply Sources and Projected Demands

bull Ongoing Conservation vs Short Term Planned Demand Reductions for Extraordinary Situations

SantaBarbaraCAgovWater24

Water Supply Performance

SantaBarbaraCAgovWater25

SantaBarbaraCAgovWater26

SantaBarbaraCAgovWater27

SantaBarbaraCAgovWater28

Key Policy Issuesbull Achieve 20 x 2020 through BMPs Additional

Conservation Measures amp Recycled Waterbull Planning for a 6-Year Duration Critical Drought

- Manage supplies to avoid use of Desal until year six- Water Banking Purchases- Planned Demand Reductions 10 to 15- Recycled Water Expansion

bull Recycled Water Blending bull Sedimentation Management

SantaBarbaraCAgovWater29

Next Stepsbull Finalize updated Long-Term Water

Supply Plan- April 11 Final Comments from Water

Commission- Environmental Review

bull Prepare Urban Water Management Plan Update per State Requirements

bull Target Adoption Date for LTWSP amp UWMP - June 14 2011

SantaBarbaraCAgovWater30

Discussion amp Feedback

SantaBarbaraCAgovWater31

SantaBarbaraCAgovWater32

SantaBarbaraCAgovWater33

SantaBarbaraCAgovWater34

SantaBarbaraCAgovWater35

SantaBarbaraCAgovWater36

Upper Santa Ynez River Operations Agreement(ldquoPass Through Agreementrdquo)

SantaBarbaraCAgovWater37

Context of 1989 Agreementbull City water supply shortage identified ndash Gibraltar

vulnerable to siltation

bull Solution Raise Gibraltar Dam 20rsquo to 40rsquo

bull Challenges by downstream and environmental interests

bull Cachuma enlargement under consideration

SantaBarbaraCAgovWater38

Parties to the Agreement

bull City of Santa Barbarabull Carpinteria Valley Water Districtbull Goleta Water Districtbull Montecito Water Districtbull Santa Ynez River Water Conservation Districtbull SYRWCD Improvement District No 1

Consent and Acknowledgement by US Bureau of Reclamation

SantaBarbaraCAgovWater39

Pass Through Summer no inflow

Current volume (reflects on-going siltation since 1988)

1988 Reservoir volume

Note different siltation levels

SantaBarbaraCAgovWater40

Smaller Reservoir Spills Sooner1988 Reservoir volume

Current Reservoir volume

SantaBarbaraCAgovWater41

Difference is Stored in Cachuma as Gibraltar WaterBase Reservoir

Actual Reservoir

SantaBarbaraCAgovWater42

  • Long Term Water Supply Plan Adaptive Management
  • Overview
  • Historical Background
  • Historical Background
  • Historical Background
  • Slide Number 6
  • Water Supplies - Cachuma
  • Water Supplies - Cachuma
  • Water Supplies - Gibraltar
  • Water Supplies ndash Mission Tunnel
  • Water Supplies ndash State Water
  • Water Supplies ndash State Water
  • Water Supplies - Groundwater
  • Water Supplies ndash Groundwater
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Recycled Water Blending
  • Water Supplies - Desalination
  • Demand Management
  • Demand Projections
  • Water Supply Planning Target
  • Water Supply Planning Concepts
  • Water Supply Performance
  • Slide Number 25
  • Slide Number 26
  • Slide Number 27
  • Key Policy Issues
  • Next Steps
  • Discussion amp Feedback
  • Slide Number 31
  • Slide Number 32
  • Slide Number 33
  • Slide Number 34
  • Slide Number 35
  • Slide Number 36
  • Context of 1989 Agreement
  • Parties to the Agreement
  • Pass Through Summer no inflow
  • Smaller Reservoir Spills Sooner
  • Difference is Stored in Cachuma as Gibraltar Water
  • Slide Number 42
Page 42: PUBLIC WORKS DEPARTMENT WATER RESOURCES DIVISION …...mountain • Supply ranges from ... Water Supplies –State Water • A small, but useful part of our water supply • Both the

SantaBarbaraCAgovWater24

Water Supply Performance

SantaBarbaraCAgovWater25

SantaBarbaraCAgovWater26

SantaBarbaraCAgovWater27

SantaBarbaraCAgovWater28

Key Policy Issuesbull Achieve 20 x 2020 through BMPs Additional

Conservation Measures amp Recycled Waterbull Planning for a 6-Year Duration Critical Drought

- Manage supplies to avoid use of Desal until year six- Water Banking Purchases- Planned Demand Reductions 10 to 15- Recycled Water Expansion

bull Recycled Water Blending bull Sedimentation Management

SantaBarbaraCAgovWater29

Next Stepsbull Finalize updated Long-Term Water

Supply Plan- April 11 Final Comments from Water

Commission- Environmental Review

bull Prepare Urban Water Management Plan Update per State Requirements

bull Target Adoption Date for LTWSP amp UWMP - June 14 2011

SantaBarbaraCAgovWater30

Discussion amp Feedback

SantaBarbaraCAgovWater31

SantaBarbaraCAgovWater32

SantaBarbaraCAgovWater33

SantaBarbaraCAgovWater34

SantaBarbaraCAgovWater35

SantaBarbaraCAgovWater36

Upper Santa Ynez River Operations Agreement(ldquoPass Through Agreementrdquo)

SantaBarbaraCAgovWater37

Context of 1989 Agreementbull City water supply shortage identified ndash Gibraltar

vulnerable to siltation

bull Solution Raise Gibraltar Dam 20rsquo to 40rsquo

bull Challenges by downstream and environmental interests

bull Cachuma enlargement under consideration

SantaBarbaraCAgovWater38

Parties to the Agreement

bull City of Santa Barbarabull Carpinteria Valley Water Districtbull Goleta Water Districtbull Montecito Water Districtbull Santa Ynez River Water Conservation Districtbull SYRWCD Improvement District No 1

Consent and Acknowledgement by US Bureau of Reclamation

SantaBarbaraCAgovWater39

Pass Through Summer no inflow

Current volume (reflects on-going siltation since 1988)

1988 Reservoir volume

Note different siltation levels

SantaBarbaraCAgovWater40

Smaller Reservoir Spills Sooner1988 Reservoir volume

Current Reservoir volume

SantaBarbaraCAgovWater41

Difference is Stored in Cachuma as Gibraltar WaterBase Reservoir

Actual Reservoir

SantaBarbaraCAgovWater42

  • Long Term Water Supply Plan Adaptive Management
  • Overview
  • Historical Background
  • Historical Background
  • Historical Background
  • Slide Number 6
  • Water Supplies - Cachuma
  • Water Supplies - Cachuma
  • Water Supplies - Gibraltar
  • Water Supplies ndash Mission Tunnel
  • Water Supplies ndash State Water
  • Water Supplies ndash State Water
  • Water Supplies - Groundwater
  • Water Supplies ndash Groundwater
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Recycled Water Blending
  • Water Supplies - Desalination
  • Demand Management
  • Demand Projections
  • Water Supply Planning Target
  • Water Supply Planning Concepts
  • Water Supply Performance
  • Slide Number 25
  • Slide Number 26
  • Slide Number 27
  • Key Policy Issues
  • Next Steps
  • Discussion amp Feedback
  • Slide Number 31
  • Slide Number 32
  • Slide Number 33
  • Slide Number 34
  • Slide Number 35
  • Slide Number 36
  • Context of 1989 Agreement
  • Parties to the Agreement
  • Pass Through Summer no inflow
  • Smaller Reservoir Spills Sooner
  • Difference is Stored in Cachuma as Gibraltar Water
  • Slide Number 42
Page 43: PUBLIC WORKS DEPARTMENT WATER RESOURCES DIVISION …...mountain • Supply ranges from ... Water Supplies –State Water • A small, but useful part of our water supply • Both the

SantaBarbaraCAgovWater25

SantaBarbaraCAgovWater26

SantaBarbaraCAgovWater27

SantaBarbaraCAgovWater28

Key Policy Issuesbull Achieve 20 x 2020 through BMPs Additional

Conservation Measures amp Recycled Waterbull Planning for a 6-Year Duration Critical Drought

- Manage supplies to avoid use of Desal until year six- Water Banking Purchases- Planned Demand Reductions 10 to 15- Recycled Water Expansion

bull Recycled Water Blending bull Sedimentation Management

SantaBarbaraCAgovWater29

Next Stepsbull Finalize updated Long-Term Water

Supply Plan- April 11 Final Comments from Water

Commission- Environmental Review

bull Prepare Urban Water Management Plan Update per State Requirements

bull Target Adoption Date for LTWSP amp UWMP - June 14 2011

SantaBarbaraCAgovWater30

Discussion amp Feedback

SantaBarbaraCAgovWater31

SantaBarbaraCAgovWater32

SantaBarbaraCAgovWater33

SantaBarbaraCAgovWater34

SantaBarbaraCAgovWater35

SantaBarbaraCAgovWater36

Upper Santa Ynez River Operations Agreement(ldquoPass Through Agreementrdquo)

SantaBarbaraCAgovWater37

Context of 1989 Agreementbull City water supply shortage identified ndash Gibraltar

vulnerable to siltation

bull Solution Raise Gibraltar Dam 20rsquo to 40rsquo

bull Challenges by downstream and environmental interests

bull Cachuma enlargement under consideration

SantaBarbaraCAgovWater38

Parties to the Agreement

bull City of Santa Barbarabull Carpinteria Valley Water Districtbull Goleta Water Districtbull Montecito Water Districtbull Santa Ynez River Water Conservation Districtbull SYRWCD Improvement District No 1

Consent and Acknowledgement by US Bureau of Reclamation

SantaBarbaraCAgovWater39

Pass Through Summer no inflow

Current volume (reflects on-going siltation since 1988)

1988 Reservoir volume

Note different siltation levels

SantaBarbaraCAgovWater40

Smaller Reservoir Spills Sooner1988 Reservoir volume

Current Reservoir volume

SantaBarbaraCAgovWater41

Difference is Stored in Cachuma as Gibraltar WaterBase Reservoir

Actual Reservoir

SantaBarbaraCAgovWater42

  • Long Term Water Supply Plan Adaptive Management
  • Overview
  • Historical Background
  • Historical Background
  • Historical Background
  • Slide Number 6
  • Water Supplies - Cachuma
  • Water Supplies - Cachuma
  • Water Supplies - Gibraltar
  • Water Supplies ndash Mission Tunnel
  • Water Supplies ndash State Water
  • Water Supplies ndash State Water
  • Water Supplies - Groundwater
  • Water Supplies ndash Groundwater
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Recycled Water Blending
  • Water Supplies - Desalination
  • Demand Management
  • Demand Projections
  • Water Supply Planning Target
  • Water Supply Planning Concepts
  • Water Supply Performance
  • Slide Number 25
  • Slide Number 26
  • Slide Number 27
  • Key Policy Issues
  • Next Steps
  • Discussion amp Feedback
  • Slide Number 31
  • Slide Number 32
  • Slide Number 33
  • Slide Number 34
  • Slide Number 35
  • Slide Number 36
  • Context of 1989 Agreement
  • Parties to the Agreement
  • Pass Through Summer no inflow
  • Smaller Reservoir Spills Sooner
  • Difference is Stored in Cachuma as Gibraltar Water
  • Slide Number 42
Page 44: PUBLIC WORKS DEPARTMENT WATER RESOURCES DIVISION …...mountain • Supply ranges from ... Water Supplies –State Water • A small, but useful part of our water supply • Both the

SantaBarbaraCAgovWater26

SantaBarbaraCAgovWater27

SantaBarbaraCAgovWater28

Key Policy Issuesbull Achieve 20 x 2020 through BMPs Additional

Conservation Measures amp Recycled Waterbull Planning for a 6-Year Duration Critical Drought

- Manage supplies to avoid use of Desal until year six- Water Banking Purchases- Planned Demand Reductions 10 to 15- Recycled Water Expansion

bull Recycled Water Blending bull Sedimentation Management

SantaBarbaraCAgovWater29

Next Stepsbull Finalize updated Long-Term Water

Supply Plan- April 11 Final Comments from Water

Commission- Environmental Review

bull Prepare Urban Water Management Plan Update per State Requirements

bull Target Adoption Date for LTWSP amp UWMP - June 14 2011

SantaBarbaraCAgovWater30

Discussion amp Feedback

SantaBarbaraCAgovWater31

SantaBarbaraCAgovWater32

SantaBarbaraCAgovWater33

SantaBarbaraCAgovWater34

SantaBarbaraCAgovWater35

SantaBarbaraCAgovWater36

Upper Santa Ynez River Operations Agreement(ldquoPass Through Agreementrdquo)

SantaBarbaraCAgovWater37

Context of 1989 Agreementbull City water supply shortage identified ndash Gibraltar

vulnerable to siltation

bull Solution Raise Gibraltar Dam 20rsquo to 40rsquo

bull Challenges by downstream and environmental interests

bull Cachuma enlargement under consideration

SantaBarbaraCAgovWater38

Parties to the Agreement

bull City of Santa Barbarabull Carpinteria Valley Water Districtbull Goleta Water Districtbull Montecito Water Districtbull Santa Ynez River Water Conservation Districtbull SYRWCD Improvement District No 1

Consent and Acknowledgement by US Bureau of Reclamation

SantaBarbaraCAgovWater39

Pass Through Summer no inflow

Current volume (reflects on-going siltation since 1988)

1988 Reservoir volume

Note different siltation levels

SantaBarbaraCAgovWater40

Smaller Reservoir Spills Sooner1988 Reservoir volume

Current Reservoir volume

SantaBarbaraCAgovWater41

Difference is Stored in Cachuma as Gibraltar WaterBase Reservoir

Actual Reservoir

SantaBarbaraCAgovWater42

  • Long Term Water Supply Plan Adaptive Management
  • Overview
  • Historical Background
  • Historical Background
  • Historical Background
  • Slide Number 6
  • Water Supplies - Cachuma
  • Water Supplies - Cachuma
  • Water Supplies - Gibraltar
  • Water Supplies ndash Mission Tunnel
  • Water Supplies ndash State Water
  • Water Supplies ndash State Water
  • Water Supplies - Groundwater
  • Water Supplies ndash Groundwater
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Recycled Water Blending
  • Water Supplies - Desalination
  • Demand Management
  • Demand Projections
  • Water Supply Planning Target
  • Water Supply Planning Concepts
  • Water Supply Performance
  • Slide Number 25
  • Slide Number 26
  • Slide Number 27
  • Key Policy Issues
  • Next Steps
  • Discussion amp Feedback
  • Slide Number 31
  • Slide Number 32
  • Slide Number 33
  • Slide Number 34
  • Slide Number 35
  • Slide Number 36
  • Context of 1989 Agreement
  • Parties to the Agreement
  • Pass Through Summer no inflow
  • Smaller Reservoir Spills Sooner
  • Difference is Stored in Cachuma as Gibraltar Water
  • Slide Number 42
Page 45: PUBLIC WORKS DEPARTMENT WATER RESOURCES DIVISION …...mountain • Supply ranges from ... Water Supplies –State Water • A small, but useful part of our water supply • Both the

SantaBarbaraCAgovWater27

SantaBarbaraCAgovWater28

Key Policy Issuesbull Achieve 20 x 2020 through BMPs Additional

Conservation Measures amp Recycled Waterbull Planning for a 6-Year Duration Critical Drought

- Manage supplies to avoid use of Desal until year six- Water Banking Purchases- Planned Demand Reductions 10 to 15- Recycled Water Expansion

bull Recycled Water Blending bull Sedimentation Management

SantaBarbaraCAgovWater29

Next Stepsbull Finalize updated Long-Term Water

Supply Plan- April 11 Final Comments from Water

Commission- Environmental Review

bull Prepare Urban Water Management Plan Update per State Requirements

bull Target Adoption Date for LTWSP amp UWMP - June 14 2011

SantaBarbaraCAgovWater30

Discussion amp Feedback

SantaBarbaraCAgovWater31

SantaBarbaraCAgovWater32

SantaBarbaraCAgovWater33

SantaBarbaraCAgovWater34

SantaBarbaraCAgovWater35

SantaBarbaraCAgovWater36

Upper Santa Ynez River Operations Agreement(ldquoPass Through Agreementrdquo)

SantaBarbaraCAgovWater37

Context of 1989 Agreementbull City water supply shortage identified ndash Gibraltar

vulnerable to siltation

bull Solution Raise Gibraltar Dam 20rsquo to 40rsquo

bull Challenges by downstream and environmental interests

bull Cachuma enlargement under consideration

SantaBarbaraCAgovWater38

Parties to the Agreement

bull City of Santa Barbarabull Carpinteria Valley Water Districtbull Goleta Water Districtbull Montecito Water Districtbull Santa Ynez River Water Conservation Districtbull SYRWCD Improvement District No 1

Consent and Acknowledgement by US Bureau of Reclamation

SantaBarbaraCAgovWater39

Pass Through Summer no inflow

Current volume (reflects on-going siltation since 1988)

1988 Reservoir volume

Note different siltation levels

SantaBarbaraCAgovWater40

Smaller Reservoir Spills Sooner1988 Reservoir volume

Current Reservoir volume

SantaBarbaraCAgovWater41

Difference is Stored in Cachuma as Gibraltar WaterBase Reservoir

Actual Reservoir

SantaBarbaraCAgovWater42

  • Long Term Water Supply Plan Adaptive Management
  • Overview
  • Historical Background
  • Historical Background
  • Historical Background
  • Slide Number 6
  • Water Supplies - Cachuma
  • Water Supplies - Cachuma
  • Water Supplies - Gibraltar
  • Water Supplies ndash Mission Tunnel
  • Water Supplies ndash State Water
  • Water Supplies ndash State Water
  • Water Supplies - Groundwater
  • Water Supplies ndash Groundwater
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Recycled Water Blending
  • Water Supplies - Desalination
  • Demand Management
  • Demand Projections
  • Water Supply Planning Target
  • Water Supply Planning Concepts
  • Water Supply Performance
  • Slide Number 25
  • Slide Number 26
  • Slide Number 27
  • Key Policy Issues
  • Next Steps
  • Discussion amp Feedback
  • Slide Number 31
  • Slide Number 32
  • Slide Number 33
  • Slide Number 34
  • Slide Number 35
  • Slide Number 36
  • Context of 1989 Agreement
  • Parties to the Agreement
  • Pass Through Summer no inflow
  • Smaller Reservoir Spills Sooner
  • Difference is Stored in Cachuma as Gibraltar Water
  • Slide Number 42
Page 46: PUBLIC WORKS DEPARTMENT WATER RESOURCES DIVISION …...mountain • Supply ranges from ... Water Supplies –State Water • A small, but useful part of our water supply • Both the

SantaBarbaraCAgovWater28

Key Policy Issuesbull Achieve 20 x 2020 through BMPs Additional

Conservation Measures amp Recycled Waterbull Planning for a 6-Year Duration Critical Drought

- Manage supplies to avoid use of Desal until year six- Water Banking Purchases- Planned Demand Reductions 10 to 15- Recycled Water Expansion

bull Recycled Water Blending bull Sedimentation Management

SantaBarbaraCAgovWater29

Next Stepsbull Finalize updated Long-Term Water

Supply Plan- April 11 Final Comments from Water

Commission- Environmental Review

bull Prepare Urban Water Management Plan Update per State Requirements

bull Target Adoption Date for LTWSP amp UWMP - June 14 2011

SantaBarbaraCAgovWater30

Discussion amp Feedback

SantaBarbaraCAgovWater31

SantaBarbaraCAgovWater32

SantaBarbaraCAgovWater33

SantaBarbaraCAgovWater34

SantaBarbaraCAgovWater35

SantaBarbaraCAgovWater36

Upper Santa Ynez River Operations Agreement(ldquoPass Through Agreementrdquo)

SantaBarbaraCAgovWater37

Context of 1989 Agreementbull City water supply shortage identified ndash Gibraltar

vulnerable to siltation

bull Solution Raise Gibraltar Dam 20rsquo to 40rsquo

bull Challenges by downstream and environmental interests

bull Cachuma enlargement under consideration

SantaBarbaraCAgovWater38

Parties to the Agreement

bull City of Santa Barbarabull Carpinteria Valley Water Districtbull Goleta Water Districtbull Montecito Water Districtbull Santa Ynez River Water Conservation Districtbull SYRWCD Improvement District No 1

Consent and Acknowledgement by US Bureau of Reclamation

SantaBarbaraCAgovWater39

Pass Through Summer no inflow

Current volume (reflects on-going siltation since 1988)

1988 Reservoir volume

Note different siltation levels

SantaBarbaraCAgovWater40

Smaller Reservoir Spills Sooner1988 Reservoir volume

Current Reservoir volume

SantaBarbaraCAgovWater41

Difference is Stored in Cachuma as Gibraltar WaterBase Reservoir

Actual Reservoir

SantaBarbaraCAgovWater42

  • Long Term Water Supply Plan Adaptive Management
  • Overview
  • Historical Background
  • Historical Background
  • Historical Background
  • Slide Number 6
  • Water Supplies - Cachuma
  • Water Supplies - Cachuma
  • Water Supplies - Gibraltar
  • Water Supplies ndash Mission Tunnel
  • Water Supplies ndash State Water
  • Water Supplies ndash State Water
  • Water Supplies - Groundwater
  • Water Supplies ndash Groundwater
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Recycled Water Blending
  • Water Supplies - Desalination
  • Demand Management
  • Demand Projections
  • Water Supply Planning Target
  • Water Supply Planning Concepts
  • Water Supply Performance
  • Slide Number 25
  • Slide Number 26
  • Slide Number 27
  • Key Policy Issues
  • Next Steps
  • Discussion amp Feedback
  • Slide Number 31
  • Slide Number 32
  • Slide Number 33
  • Slide Number 34
  • Slide Number 35
  • Slide Number 36
  • Context of 1989 Agreement
  • Parties to the Agreement
  • Pass Through Summer no inflow
  • Smaller Reservoir Spills Sooner
  • Difference is Stored in Cachuma as Gibraltar Water
  • Slide Number 42
Page 47: PUBLIC WORKS DEPARTMENT WATER RESOURCES DIVISION …...mountain • Supply ranges from ... Water Supplies –State Water • A small, but useful part of our water supply • Both the

SantaBarbaraCAgovWater29

Next Stepsbull Finalize updated Long-Term Water

Supply Plan- April 11 Final Comments from Water

Commission- Environmental Review

bull Prepare Urban Water Management Plan Update per State Requirements

bull Target Adoption Date for LTWSP amp UWMP - June 14 2011

SantaBarbaraCAgovWater30

Discussion amp Feedback

SantaBarbaraCAgovWater31

SantaBarbaraCAgovWater32

SantaBarbaraCAgovWater33

SantaBarbaraCAgovWater34

SantaBarbaraCAgovWater35

SantaBarbaraCAgovWater36

Upper Santa Ynez River Operations Agreement(ldquoPass Through Agreementrdquo)

SantaBarbaraCAgovWater37

Context of 1989 Agreementbull City water supply shortage identified ndash Gibraltar

vulnerable to siltation

bull Solution Raise Gibraltar Dam 20rsquo to 40rsquo

bull Challenges by downstream and environmental interests

bull Cachuma enlargement under consideration

SantaBarbaraCAgovWater38

Parties to the Agreement

bull City of Santa Barbarabull Carpinteria Valley Water Districtbull Goleta Water Districtbull Montecito Water Districtbull Santa Ynez River Water Conservation Districtbull SYRWCD Improvement District No 1

Consent and Acknowledgement by US Bureau of Reclamation

SantaBarbaraCAgovWater39

Pass Through Summer no inflow

Current volume (reflects on-going siltation since 1988)

1988 Reservoir volume

Note different siltation levels

SantaBarbaraCAgovWater40

Smaller Reservoir Spills Sooner1988 Reservoir volume

Current Reservoir volume

SantaBarbaraCAgovWater41

Difference is Stored in Cachuma as Gibraltar WaterBase Reservoir

Actual Reservoir

SantaBarbaraCAgovWater42

  • Long Term Water Supply Plan Adaptive Management
  • Overview
  • Historical Background
  • Historical Background
  • Historical Background
  • Slide Number 6
  • Water Supplies - Cachuma
  • Water Supplies - Cachuma
  • Water Supplies - Gibraltar
  • Water Supplies ndash Mission Tunnel
  • Water Supplies ndash State Water
  • Water Supplies ndash State Water
  • Water Supplies - Groundwater
  • Water Supplies ndash Groundwater
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Recycled Water Blending
  • Water Supplies - Desalination
  • Demand Management
  • Demand Projections
  • Water Supply Planning Target
  • Water Supply Planning Concepts
  • Water Supply Performance
  • Slide Number 25
  • Slide Number 26
  • Slide Number 27
  • Key Policy Issues
  • Next Steps
  • Discussion amp Feedback
  • Slide Number 31
  • Slide Number 32
  • Slide Number 33
  • Slide Number 34
  • Slide Number 35
  • Slide Number 36
  • Context of 1989 Agreement
  • Parties to the Agreement
  • Pass Through Summer no inflow
  • Smaller Reservoir Spills Sooner
  • Difference is Stored in Cachuma as Gibraltar Water
  • Slide Number 42
Page 48: PUBLIC WORKS DEPARTMENT WATER RESOURCES DIVISION …...mountain • Supply ranges from ... Water Supplies –State Water • A small, but useful part of our water supply • Both the

SantaBarbaraCAgovWater30

Discussion amp Feedback

SantaBarbaraCAgovWater31

SantaBarbaraCAgovWater32

SantaBarbaraCAgovWater33

SantaBarbaraCAgovWater34

SantaBarbaraCAgovWater35

SantaBarbaraCAgovWater36

Upper Santa Ynez River Operations Agreement(ldquoPass Through Agreementrdquo)

SantaBarbaraCAgovWater37

Context of 1989 Agreementbull City water supply shortage identified ndash Gibraltar

vulnerable to siltation

bull Solution Raise Gibraltar Dam 20rsquo to 40rsquo

bull Challenges by downstream and environmental interests

bull Cachuma enlargement under consideration

SantaBarbaraCAgovWater38

Parties to the Agreement

bull City of Santa Barbarabull Carpinteria Valley Water Districtbull Goleta Water Districtbull Montecito Water Districtbull Santa Ynez River Water Conservation Districtbull SYRWCD Improvement District No 1

Consent and Acknowledgement by US Bureau of Reclamation

SantaBarbaraCAgovWater39

Pass Through Summer no inflow

Current volume (reflects on-going siltation since 1988)

1988 Reservoir volume

Note different siltation levels

SantaBarbaraCAgovWater40

Smaller Reservoir Spills Sooner1988 Reservoir volume

Current Reservoir volume

SantaBarbaraCAgovWater41

Difference is Stored in Cachuma as Gibraltar WaterBase Reservoir

Actual Reservoir

SantaBarbaraCAgovWater42

  • Long Term Water Supply Plan Adaptive Management
  • Overview
  • Historical Background
  • Historical Background
  • Historical Background
  • Slide Number 6
  • Water Supplies - Cachuma
  • Water Supplies - Cachuma
  • Water Supplies - Gibraltar
  • Water Supplies ndash Mission Tunnel
  • Water Supplies ndash State Water
  • Water Supplies ndash State Water
  • Water Supplies - Groundwater
  • Water Supplies ndash Groundwater
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Recycled Water Blending
  • Water Supplies - Desalination
  • Demand Management
  • Demand Projections
  • Water Supply Planning Target
  • Water Supply Planning Concepts
  • Water Supply Performance
  • Slide Number 25
  • Slide Number 26
  • Slide Number 27
  • Key Policy Issues
  • Next Steps
  • Discussion amp Feedback
  • Slide Number 31
  • Slide Number 32
  • Slide Number 33
  • Slide Number 34
  • Slide Number 35
  • Slide Number 36
  • Context of 1989 Agreement
  • Parties to the Agreement
  • Pass Through Summer no inflow
  • Smaller Reservoir Spills Sooner
  • Difference is Stored in Cachuma as Gibraltar Water
  • Slide Number 42
Page 49: PUBLIC WORKS DEPARTMENT WATER RESOURCES DIVISION …...mountain • Supply ranges from ... Water Supplies –State Water • A small, but useful part of our water supply • Both the

SantaBarbaraCAgovWater31

SantaBarbaraCAgovWater32

SantaBarbaraCAgovWater33

SantaBarbaraCAgovWater34

SantaBarbaraCAgovWater35

SantaBarbaraCAgovWater36

Upper Santa Ynez River Operations Agreement(ldquoPass Through Agreementrdquo)

SantaBarbaraCAgovWater37

Context of 1989 Agreementbull City water supply shortage identified ndash Gibraltar

vulnerable to siltation

bull Solution Raise Gibraltar Dam 20rsquo to 40rsquo

bull Challenges by downstream and environmental interests

bull Cachuma enlargement under consideration

SantaBarbaraCAgovWater38

Parties to the Agreement

bull City of Santa Barbarabull Carpinteria Valley Water Districtbull Goleta Water Districtbull Montecito Water Districtbull Santa Ynez River Water Conservation Districtbull SYRWCD Improvement District No 1

Consent and Acknowledgement by US Bureau of Reclamation

SantaBarbaraCAgovWater39

Pass Through Summer no inflow

Current volume (reflects on-going siltation since 1988)

1988 Reservoir volume

Note different siltation levels

SantaBarbaraCAgovWater40

Smaller Reservoir Spills Sooner1988 Reservoir volume

Current Reservoir volume

SantaBarbaraCAgovWater41

Difference is Stored in Cachuma as Gibraltar WaterBase Reservoir

Actual Reservoir

SantaBarbaraCAgovWater42

  • Long Term Water Supply Plan Adaptive Management
  • Overview
  • Historical Background
  • Historical Background
  • Historical Background
  • Slide Number 6
  • Water Supplies - Cachuma
  • Water Supplies - Cachuma
  • Water Supplies - Gibraltar
  • Water Supplies ndash Mission Tunnel
  • Water Supplies ndash State Water
  • Water Supplies ndash State Water
  • Water Supplies - Groundwater
  • Water Supplies ndash Groundwater
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Recycled Water Blending
  • Water Supplies - Desalination
  • Demand Management
  • Demand Projections
  • Water Supply Planning Target
  • Water Supply Planning Concepts
  • Water Supply Performance
  • Slide Number 25
  • Slide Number 26
  • Slide Number 27
  • Key Policy Issues
  • Next Steps
  • Discussion amp Feedback
  • Slide Number 31
  • Slide Number 32
  • Slide Number 33
  • Slide Number 34
  • Slide Number 35
  • Slide Number 36
  • Context of 1989 Agreement
  • Parties to the Agreement
  • Pass Through Summer no inflow
  • Smaller Reservoir Spills Sooner
  • Difference is Stored in Cachuma as Gibraltar Water
  • Slide Number 42
Page 50: PUBLIC WORKS DEPARTMENT WATER RESOURCES DIVISION …...mountain • Supply ranges from ... Water Supplies –State Water • A small, but useful part of our water supply • Both the

SantaBarbaraCAgovWater32

SantaBarbaraCAgovWater33

SantaBarbaraCAgovWater34

SantaBarbaraCAgovWater35

SantaBarbaraCAgovWater36

Upper Santa Ynez River Operations Agreement(ldquoPass Through Agreementrdquo)

SantaBarbaraCAgovWater37

Context of 1989 Agreementbull City water supply shortage identified ndash Gibraltar

vulnerable to siltation

bull Solution Raise Gibraltar Dam 20rsquo to 40rsquo

bull Challenges by downstream and environmental interests

bull Cachuma enlargement under consideration

SantaBarbaraCAgovWater38

Parties to the Agreement

bull City of Santa Barbarabull Carpinteria Valley Water Districtbull Goleta Water Districtbull Montecito Water Districtbull Santa Ynez River Water Conservation Districtbull SYRWCD Improvement District No 1

Consent and Acknowledgement by US Bureau of Reclamation

SantaBarbaraCAgovWater39

Pass Through Summer no inflow

Current volume (reflects on-going siltation since 1988)

1988 Reservoir volume

Note different siltation levels

SantaBarbaraCAgovWater40

Smaller Reservoir Spills Sooner1988 Reservoir volume

Current Reservoir volume

SantaBarbaraCAgovWater41

Difference is Stored in Cachuma as Gibraltar WaterBase Reservoir

Actual Reservoir

SantaBarbaraCAgovWater42

  • Long Term Water Supply Plan Adaptive Management
  • Overview
  • Historical Background
  • Historical Background
  • Historical Background
  • Slide Number 6
  • Water Supplies - Cachuma
  • Water Supplies - Cachuma
  • Water Supplies - Gibraltar
  • Water Supplies ndash Mission Tunnel
  • Water Supplies ndash State Water
  • Water Supplies ndash State Water
  • Water Supplies - Groundwater
  • Water Supplies ndash Groundwater
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Recycled Water Blending
  • Water Supplies - Desalination
  • Demand Management
  • Demand Projections
  • Water Supply Planning Target
  • Water Supply Planning Concepts
  • Water Supply Performance
  • Slide Number 25
  • Slide Number 26
  • Slide Number 27
  • Key Policy Issues
  • Next Steps
  • Discussion amp Feedback
  • Slide Number 31
  • Slide Number 32
  • Slide Number 33
  • Slide Number 34
  • Slide Number 35
  • Slide Number 36
  • Context of 1989 Agreement
  • Parties to the Agreement
  • Pass Through Summer no inflow
  • Smaller Reservoir Spills Sooner
  • Difference is Stored in Cachuma as Gibraltar Water
  • Slide Number 42
Page 51: PUBLIC WORKS DEPARTMENT WATER RESOURCES DIVISION …...mountain • Supply ranges from ... Water Supplies –State Water • A small, but useful part of our water supply • Both the

SantaBarbaraCAgovWater33

SantaBarbaraCAgovWater34

SantaBarbaraCAgovWater35

SantaBarbaraCAgovWater36

Upper Santa Ynez River Operations Agreement(ldquoPass Through Agreementrdquo)

SantaBarbaraCAgovWater37

Context of 1989 Agreementbull City water supply shortage identified ndash Gibraltar

vulnerable to siltation

bull Solution Raise Gibraltar Dam 20rsquo to 40rsquo

bull Challenges by downstream and environmental interests

bull Cachuma enlargement under consideration

SantaBarbaraCAgovWater38

Parties to the Agreement

bull City of Santa Barbarabull Carpinteria Valley Water Districtbull Goleta Water Districtbull Montecito Water Districtbull Santa Ynez River Water Conservation Districtbull SYRWCD Improvement District No 1

Consent and Acknowledgement by US Bureau of Reclamation

SantaBarbaraCAgovWater39

Pass Through Summer no inflow

Current volume (reflects on-going siltation since 1988)

1988 Reservoir volume

Note different siltation levels

SantaBarbaraCAgovWater40

Smaller Reservoir Spills Sooner1988 Reservoir volume

Current Reservoir volume

SantaBarbaraCAgovWater41

Difference is Stored in Cachuma as Gibraltar WaterBase Reservoir

Actual Reservoir

SantaBarbaraCAgovWater42

  • Long Term Water Supply Plan Adaptive Management
  • Overview
  • Historical Background
  • Historical Background
  • Historical Background
  • Slide Number 6
  • Water Supplies - Cachuma
  • Water Supplies - Cachuma
  • Water Supplies - Gibraltar
  • Water Supplies ndash Mission Tunnel
  • Water Supplies ndash State Water
  • Water Supplies ndash State Water
  • Water Supplies - Groundwater
  • Water Supplies ndash Groundwater
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Recycled Water Blending
  • Water Supplies - Desalination
  • Demand Management
  • Demand Projections
  • Water Supply Planning Target
  • Water Supply Planning Concepts
  • Water Supply Performance
  • Slide Number 25
  • Slide Number 26
  • Slide Number 27
  • Key Policy Issues
  • Next Steps
  • Discussion amp Feedback
  • Slide Number 31
  • Slide Number 32
  • Slide Number 33
  • Slide Number 34
  • Slide Number 35
  • Slide Number 36
  • Context of 1989 Agreement
  • Parties to the Agreement
  • Pass Through Summer no inflow
  • Smaller Reservoir Spills Sooner
  • Difference is Stored in Cachuma as Gibraltar Water
  • Slide Number 42
Page 52: PUBLIC WORKS DEPARTMENT WATER RESOURCES DIVISION …...mountain • Supply ranges from ... Water Supplies –State Water • A small, but useful part of our water supply • Both the

SantaBarbaraCAgovWater34

SantaBarbaraCAgovWater35

SantaBarbaraCAgovWater36

Upper Santa Ynez River Operations Agreement(ldquoPass Through Agreementrdquo)

SantaBarbaraCAgovWater37

Context of 1989 Agreementbull City water supply shortage identified ndash Gibraltar

vulnerable to siltation

bull Solution Raise Gibraltar Dam 20rsquo to 40rsquo

bull Challenges by downstream and environmental interests

bull Cachuma enlargement under consideration

SantaBarbaraCAgovWater38

Parties to the Agreement

bull City of Santa Barbarabull Carpinteria Valley Water Districtbull Goleta Water Districtbull Montecito Water Districtbull Santa Ynez River Water Conservation Districtbull SYRWCD Improvement District No 1

Consent and Acknowledgement by US Bureau of Reclamation

SantaBarbaraCAgovWater39

Pass Through Summer no inflow

Current volume (reflects on-going siltation since 1988)

1988 Reservoir volume

Note different siltation levels

SantaBarbaraCAgovWater40

Smaller Reservoir Spills Sooner1988 Reservoir volume

Current Reservoir volume

SantaBarbaraCAgovWater41

Difference is Stored in Cachuma as Gibraltar WaterBase Reservoir

Actual Reservoir

SantaBarbaraCAgovWater42

  • Long Term Water Supply Plan Adaptive Management
  • Overview
  • Historical Background
  • Historical Background
  • Historical Background
  • Slide Number 6
  • Water Supplies - Cachuma
  • Water Supplies - Cachuma
  • Water Supplies - Gibraltar
  • Water Supplies ndash Mission Tunnel
  • Water Supplies ndash State Water
  • Water Supplies ndash State Water
  • Water Supplies - Groundwater
  • Water Supplies ndash Groundwater
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Recycled Water Blending
  • Water Supplies - Desalination
  • Demand Management
  • Demand Projections
  • Water Supply Planning Target
  • Water Supply Planning Concepts
  • Water Supply Performance
  • Slide Number 25
  • Slide Number 26
  • Slide Number 27
  • Key Policy Issues
  • Next Steps
  • Discussion amp Feedback
  • Slide Number 31
  • Slide Number 32
  • Slide Number 33
  • Slide Number 34
  • Slide Number 35
  • Slide Number 36
  • Context of 1989 Agreement
  • Parties to the Agreement
  • Pass Through Summer no inflow
  • Smaller Reservoir Spills Sooner
  • Difference is Stored in Cachuma as Gibraltar Water
  • Slide Number 42
Page 53: PUBLIC WORKS DEPARTMENT WATER RESOURCES DIVISION …...mountain • Supply ranges from ... Water Supplies –State Water • A small, but useful part of our water supply • Both the

SantaBarbaraCAgovWater35

SantaBarbaraCAgovWater36

Upper Santa Ynez River Operations Agreement(ldquoPass Through Agreementrdquo)

SantaBarbaraCAgovWater37

Context of 1989 Agreementbull City water supply shortage identified ndash Gibraltar

vulnerable to siltation

bull Solution Raise Gibraltar Dam 20rsquo to 40rsquo

bull Challenges by downstream and environmental interests

bull Cachuma enlargement under consideration

SantaBarbaraCAgovWater38

Parties to the Agreement

bull City of Santa Barbarabull Carpinteria Valley Water Districtbull Goleta Water Districtbull Montecito Water Districtbull Santa Ynez River Water Conservation Districtbull SYRWCD Improvement District No 1

Consent and Acknowledgement by US Bureau of Reclamation

SantaBarbaraCAgovWater39

Pass Through Summer no inflow

Current volume (reflects on-going siltation since 1988)

1988 Reservoir volume

Note different siltation levels

SantaBarbaraCAgovWater40

Smaller Reservoir Spills Sooner1988 Reservoir volume

Current Reservoir volume

SantaBarbaraCAgovWater41

Difference is Stored in Cachuma as Gibraltar WaterBase Reservoir

Actual Reservoir

SantaBarbaraCAgovWater42

  • Long Term Water Supply Plan Adaptive Management
  • Overview
  • Historical Background
  • Historical Background
  • Historical Background
  • Slide Number 6
  • Water Supplies - Cachuma
  • Water Supplies - Cachuma
  • Water Supplies - Gibraltar
  • Water Supplies ndash Mission Tunnel
  • Water Supplies ndash State Water
  • Water Supplies ndash State Water
  • Water Supplies - Groundwater
  • Water Supplies ndash Groundwater
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Recycled Water Blending
  • Water Supplies - Desalination
  • Demand Management
  • Demand Projections
  • Water Supply Planning Target
  • Water Supply Planning Concepts
  • Water Supply Performance
  • Slide Number 25
  • Slide Number 26
  • Slide Number 27
  • Key Policy Issues
  • Next Steps
  • Discussion amp Feedback
  • Slide Number 31
  • Slide Number 32
  • Slide Number 33
  • Slide Number 34
  • Slide Number 35
  • Slide Number 36
  • Context of 1989 Agreement
  • Parties to the Agreement
  • Pass Through Summer no inflow
  • Smaller Reservoir Spills Sooner
  • Difference is Stored in Cachuma as Gibraltar Water
  • Slide Number 42
Page 54: PUBLIC WORKS DEPARTMENT WATER RESOURCES DIVISION …...mountain • Supply ranges from ... Water Supplies –State Water • A small, but useful part of our water supply • Both the

SantaBarbaraCAgovWater36

Upper Santa Ynez River Operations Agreement(ldquoPass Through Agreementrdquo)

SantaBarbaraCAgovWater37

Context of 1989 Agreementbull City water supply shortage identified ndash Gibraltar

vulnerable to siltation

bull Solution Raise Gibraltar Dam 20rsquo to 40rsquo

bull Challenges by downstream and environmental interests

bull Cachuma enlargement under consideration

SantaBarbaraCAgovWater38

Parties to the Agreement

bull City of Santa Barbarabull Carpinteria Valley Water Districtbull Goleta Water Districtbull Montecito Water Districtbull Santa Ynez River Water Conservation Districtbull SYRWCD Improvement District No 1

Consent and Acknowledgement by US Bureau of Reclamation

SantaBarbaraCAgovWater39

Pass Through Summer no inflow

Current volume (reflects on-going siltation since 1988)

1988 Reservoir volume

Note different siltation levels

SantaBarbaraCAgovWater40

Smaller Reservoir Spills Sooner1988 Reservoir volume

Current Reservoir volume

SantaBarbaraCAgovWater41

Difference is Stored in Cachuma as Gibraltar WaterBase Reservoir

Actual Reservoir

SantaBarbaraCAgovWater42

  • Long Term Water Supply Plan Adaptive Management
  • Overview
  • Historical Background
  • Historical Background
  • Historical Background
  • Slide Number 6
  • Water Supplies - Cachuma
  • Water Supplies - Cachuma
  • Water Supplies - Gibraltar
  • Water Supplies ndash Mission Tunnel
  • Water Supplies ndash State Water
  • Water Supplies ndash State Water
  • Water Supplies - Groundwater
  • Water Supplies ndash Groundwater
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Recycled Water Blending
  • Water Supplies - Desalination
  • Demand Management
  • Demand Projections
  • Water Supply Planning Target
  • Water Supply Planning Concepts
  • Water Supply Performance
  • Slide Number 25
  • Slide Number 26
  • Slide Number 27
  • Key Policy Issues
  • Next Steps
  • Discussion amp Feedback
  • Slide Number 31
  • Slide Number 32
  • Slide Number 33
  • Slide Number 34
  • Slide Number 35
  • Slide Number 36
  • Context of 1989 Agreement
  • Parties to the Agreement
  • Pass Through Summer no inflow
  • Smaller Reservoir Spills Sooner
  • Difference is Stored in Cachuma as Gibraltar Water
  • Slide Number 42
Page 55: PUBLIC WORKS DEPARTMENT WATER RESOURCES DIVISION …...mountain • Supply ranges from ... Water Supplies –State Water • A small, but useful part of our water supply • Both the

SantaBarbaraCAgovWater37

Context of 1989 Agreementbull City water supply shortage identified ndash Gibraltar

vulnerable to siltation

bull Solution Raise Gibraltar Dam 20rsquo to 40rsquo

bull Challenges by downstream and environmental interests

bull Cachuma enlargement under consideration

SantaBarbaraCAgovWater38

Parties to the Agreement

bull City of Santa Barbarabull Carpinteria Valley Water Districtbull Goleta Water Districtbull Montecito Water Districtbull Santa Ynez River Water Conservation Districtbull SYRWCD Improvement District No 1

Consent and Acknowledgement by US Bureau of Reclamation

SantaBarbaraCAgovWater39

Pass Through Summer no inflow

Current volume (reflects on-going siltation since 1988)

1988 Reservoir volume

Note different siltation levels

SantaBarbaraCAgovWater40

Smaller Reservoir Spills Sooner1988 Reservoir volume

Current Reservoir volume

SantaBarbaraCAgovWater41

Difference is Stored in Cachuma as Gibraltar WaterBase Reservoir

Actual Reservoir

SantaBarbaraCAgovWater42

  • Long Term Water Supply Plan Adaptive Management
  • Overview
  • Historical Background
  • Historical Background
  • Historical Background
  • Slide Number 6
  • Water Supplies - Cachuma
  • Water Supplies - Cachuma
  • Water Supplies - Gibraltar
  • Water Supplies ndash Mission Tunnel
  • Water Supplies ndash State Water
  • Water Supplies ndash State Water
  • Water Supplies - Groundwater
  • Water Supplies ndash Groundwater
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Recycled Water Blending
  • Water Supplies - Desalination
  • Demand Management
  • Demand Projections
  • Water Supply Planning Target
  • Water Supply Planning Concepts
  • Water Supply Performance
  • Slide Number 25
  • Slide Number 26
  • Slide Number 27
  • Key Policy Issues
  • Next Steps
  • Discussion amp Feedback
  • Slide Number 31
  • Slide Number 32
  • Slide Number 33
  • Slide Number 34
  • Slide Number 35
  • Slide Number 36
  • Context of 1989 Agreement
  • Parties to the Agreement
  • Pass Through Summer no inflow
  • Smaller Reservoir Spills Sooner
  • Difference is Stored in Cachuma as Gibraltar Water
  • Slide Number 42
Page 56: PUBLIC WORKS DEPARTMENT WATER RESOURCES DIVISION …...mountain • Supply ranges from ... Water Supplies –State Water • A small, but useful part of our water supply • Both the

SantaBarbaraCAgovWater38

Parties to the Agreement

bull City of Santa Barbarabull Carpinteria Valley Water Districtbull Goleta Water Districtbull Montecito Water Districtbull Santa Ynez River Water Conservation Districtbull SYRWCD Improvement District No 1

Consent and Acknowledgement by US Bureau of Reclamation

SantaBarbaraCAgovWater39

Pass Through Summer no inflow

Current volume (reflects on-going siltation since 1988)

1988 Reservoir volume

Note different siltation levels

SantaBarbaraCAgovWater40

Smaller Reservoir Spills Sooner1988 Reservoir volume

Current Reservoir volume

SantaBarbaraCAgovWater41

Difference is Stored in Cachuma as Gibraltar WaterBase Reservoir

Actual Reservoir

SantaBarbaraCAgovWater42

  • Long Term Water Supply Plan Adaptive Management
  • Overview
  • Historical Background
  • Historical Background
  • Historical Background
  • Slide Number 6
  • Water Supplies - Cachuma
  • Water Supplies - Cachuma
  • Water Supplies - Gibraltar
  • Water Supplies ndash Mission Tunnel
  • Water Supplies ndash State Water
  • Water Supplies ndash State Water
  • Water Supplies - Groundwater
  • Water Supplies ndash Groundwater
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Recycled Water Blending
  • Water Supplies - Desalination
  • Demand Management
  • Demand Projections
  • Water Supply Planning Target
  • Water Supply Planning Concepts
  • Water Supply Performance
  • Slide Number 25
  • Slide Number 26
  • Slide Number 27
  • Key Policy Issues
  • Next Steps
  • Discussion amp Feedback
  • Slide Number 31
  • Slide Number 32
  • Slide Number 33
  • Slide Number 34
  • Slide Number 35
  • Slide Number 36
  • Context of 1989 Agreement
  • Parties to the Agreement
  • Pass Through Summer no inflow
  • Smaller Reservoir Spills Sooner
  • Difference is Stored in Cachuma as Gibraltar Water
  • Slide Number 42
Page 57: PUBLIC WORKS DEPARTMENT WATER RESOURCES DIVISION …...mountain • Supply ranges from ... Water Supplies –State Water • A small, but useful part of our water supply • Both the

SantaBarbaraCAgovWater39

Pass Through Summer no inflow

Current volume (reflects on-going siltation since 1988)

1988 Reservoir volume

Note different siltation levels

SantaBarbaraCAgovWater40

Smaller Reservoir Spills Sooner1988 Reservoir volume

Current Reservoir volume

SantaBarbaraCAgovWater41

Difference is Stored in Cachuma as Gibraltar WaterBase Reservoir

Actual Reservoir

SantaBarbaraCAgovWater42

  • Long Term Water Supply Plan Adaptive Management
  • Overview
  • Historical Background
  • Historical Background
  • Historical Background
  • Slide Number 6
  • Water Supplies - Cachuma
  • Water Supplies - Cachuma
  • Water Supplies - Gibraltar
  • Water Supplies ndash Mission Tunnel
  • Water Supplies ndash State Water
  • Water Supplies ndash State Water
  • Water Supplies - Groundwater
  • Water Supplies ndash Groundwater
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Recycled Water Blending
  • Water Supplies - Desalination
  • Demand Management
  • Demand Projections
  • Water Supply Planning Target
  • Water Supply Planning Concepts
  • Water Supply Performance
  • Slide Number 25
  • Slide Number 26
  • Slide Number 27
  • Key Policy Issues
  • Next Steps
  • Discussion amp Feedback
  • Slide Number 31
  • Slide Number 32
  • Slide Number 33
  • Slide Number 34
  • Slide Number 35
  • Slide Number 36
  • Context of 1989 Agreement
  • Parties to the Agreement
  • Pass Through Summer no inflow
  • Smaller Reservoir Spills Sooner
  • Difference is Stored in Cachuma as Gibraltar Water
  • Slide Number 42
Page 58: PUBLIC WORKS DEPARTMENT WATER RESOURCES DIVISION …...mountain • Supply ranges from ... Water Supplies –State Water • A small, but useful part of our water supply • Both the

SantaBarbaraCAgovWater40

Smaller Reservoir Spills Sooner1988 Reservoir volume

Current Reservoir volume

SantaBarbaraCAgovWater41

Difference is Stored in Cachuma as Gibraltar WaterBase Reservoir

Actual Reservoir

SantaBarbaraCAgovWater42

  • Long Term Water Supply Plan Adaptive Management
  • Overview
  • Historical Background
  • Historical Background
  • Historical Background
  • Slide Number 6
  • Water Supplies - Cachuma
  • Water Supplies - Cachuma
  • Water Supplies - Gibraltar
  • Water Supplies ndash Mission Tunnel
  • Water Supplies ndash State Water
  • Water Supplies ndash State Water
  • Water Supplies - Groundwater
  • Water Supplies ndash Groundwater
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Recycled Water Blending
  • Water Supplies - Desalination
  • Demand Management
  • Demand Projections
  • Water Supply Planning Target
  • Water Supply Planning Concepts
  • Water Supply Performance
  • Slide Number 25
  • Slide Number 26
  • Slide Number 27
  • Key Policy Issues
  • Next Steps
  • Discussion amp Feedback
  • Slide Number 31
  • Slide Number 32
  • Slide Number 33
  • Slide Number 34
  • Slide Number 35
  • Slide Number 36
  • Context of 1989 Agreement
  • Parties to the Agreement
  • Pass Through Summer no inflow
  • Smaller Reservoir Spills Sooner
  • Difference is Stored in Cachuma as Gibraltar Water
  • Slide Number 42
Page 59: PUBLIC WORKS DEPARTMENT WATER RESOURCES DIVISION …...mountain • Supply ranges from ... Water Supplies –State Water • A small, but useful part of our water supply • Both the

SantaBarbaraCAgovWater41

Difference is Stored in Cachuma as Gibraltar WaterBase Reservoir

Actual Reservoir

SantaBarbaraCAgovWater42

  • Long Term Water Supply Plan Adaptive Management
  • Overview
  • Historical Background
  • Historical Background
  • Historical Background
  • Slide Number 6
  • Water Supplies - Cachuma
  • Water Supplies - Cachuma
  • Water Supplies - Gibraltar
  • Water Supplies ndash Mission Tunnel
  • Water Supplies ndash State Water
  • Water Supplies ndash State Water
  • Water Supplies - Groundwater
  • Water Supplies ndash Groundwater
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Recycled Water Blending
  • Water Supplies - Desalination
  • Demand Management
  • Demand Projections
  • Water Supply Planning Target
  • Water Supply Planning Concepts
  • Water Supply Performance
  • Slide Number 25
  • Slide Number 26
  • Slide Number 27
  • Key Policy Issues
  • Next Steps
  • Discussion amp Feedback
  • Slide Number 31
  • Slide Number 32
  • Slide Number 33
  • Slide Number 34
  • Slide Number 35
  • Slide Number 36
  • Context of 1989 Agreement
  • Parties to the Agreement
  • Pass Through Summer no inflow
  • Smaller Reservoir Spills Sooner
  • Difference is Stored in Cachuma as Gibraltar Water
  • Slide Number 42
Page 60: PUBLIC WORKS DEPARTMENT WATER RESOURCES DIVISION …...mountain • Supply ranges from ... Water Supplies –State Water • A small, but useful part of our water supply • Both the

SantaBarbaraCAgovWater42

  • Long Term Water Supply Plan Adaptive Management
  • Overview
  • Historical Background
  • Historical Background
  • Historical Background
  • Slide Number 6
  • Water Supplies - Cachuma
  • Water Supplies - Cachuma
  • Water Supplies - Gibraltar
  • Water Supplies ndash Mission Tunnel
  • Water Supplies ndash State Water
  • Water Supplies ndash State Water
  • Water Supplies - Groundwater
  • Water Supplies ndash Groundwater
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Water Supplies ndash Recycled Water
  • Recycled Water Blending
  • Water Supplies - Desalination
  • Demand Management
  • Demand Projections
  • Water Supply Planning Target
  • Water Supply Planning Concepts
  • Water Supply Performance
  • Slide Number 25
  • Slide Number 26
  • Slide Number 27
  • Key Policy Issues
  • Next Steps
  • Discussion amp Feedback
  • Slide Number 31
  • Slide Number 32
  • Slide Number 33
  • Slide Number 34
  • Slide Number 35
  • Slide Number 36
  • Context of 1989 Agreement
  • Parties to the Agreement
  • Pass Through Summer no inflow
  • Smaller Reservoir Spills Sooner
  • Difference is Stored in Cachuma as Gibraltar Water
  • Slide Number 42