pasadena water and power 1 water supply update and water conservation plan open space commission...
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Pasadena Water and Power
Water Supply Update and Water Conservation Plan
Open Space CommissionJune 8, 2009
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Pasadena Water and Power
Water Summary
• Supply Constraints Here to Stay> No longer “drought-driven”> Perceptions and use must evolve
• New Realities:> Waste prohibition> Conservation> Costly supply alternatives> Price increases
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Pasadena Water and Power
Water SupplyUpdate
Brad Boman
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Pasadena Water and Power
Oct. 1, 2008 to DateOct. 1, 2008 to DateAverage to DateAverage to Date
Inch
esIn
ches
Los AngelesLos Angeles San DiegoSan Diego 8-Station 8-Station IndexIndex
Mammoth Mammoth SnowpackSnowpack
CR Basin CR Basin SnowpackSnowpack
61%61%
95%95%
88%88%
100%100%
97%*97%*
Mammoth Snowpack as of May 10, 2009
Accumulated PrecipitationAs of May 28, 2009
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Pasadena Water and Power
MWD Water Supply Allocation Level 2
• MWD Enacted Water Supply Allocation Plan (10% Cut) eff. July 1
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Pasadena Water and Power
Imported Water Constraints
• Reduced Colorado River Supply• California Bay Delta Pumping Restrictions• MWD Storage Depletion
Lake MeadLake Powell
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Pasadena Water and Power
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Pasadena Water and Power
Storage Depletion
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Pasadena Water and Power
MWD Storage ResourcesEnd of Year BalancesMWD Storage ResourcesEnd of Year Balances
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2.2 MAF2.2 MAF
1.7 MAF1.7 MAF
1.1 MAF1.1 MAF
??? MAF??? MAF
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Pasadena Water and Power
Local Groundwater Limitations
• Historical “Normal” Supply> Groundwater supplies up to 40%> 12,807 AFY annual allocation (32
%)> Spreading credits add 4,308 AFY
on average• “Impacted” Local Supply
> Groundwater supplies about 35% > Reduced allocation: 10,307 AFY > Effective July 1, 2009> Can draw up to 12,807 AFY using
storage
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Pasadena Water and Power
Local Groundwater Limitations
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Pasadena Water and Power
Pasadena Supply and Demand (Short Term Outlook)
Actual/Forecast Water Supply & Demand (Acre-Feet per Year)
20,32821,345 21,116
24,59924,888 22,512
20,753
37,26336,147 35,861
39,36237,481
36,09034,575
0
5,000
10,000
15,000
20,000
25,000
30,000
35,000
40,000
45,000
UE
AB
ase
Year
FY
05
FY
06
FY
07
FY
08
FY
09
Pro
jecte
d
FY
10
Fo
recast
MWD "Penalty"
MWD Supply/Allocation
AlternativeSupply**
Basin StorageWithdrawal
Spreading Credit
Basin Allocation
DemandForecast
Pre
limin
ary
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Pasadena Water and Power
Water IRP and UWMP
• Integrated Resource Plan (IRP)> Update water demand forecast > Identify potential water supply and
conservation alternatives to meet demand> Establish portfolio objectives> Determine ideal mix supply and conservation
• Urban Water Management Plan (UWMP)> State-required form of documentation (report)> Includes IRP elements> Specifically addresses BMP implementation
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Pasadena Water and Power
Impacted Supply & Demand Restricted Imports and Local Supply
Actual/Forecast Water Supply & Demand (Acre-Feet per Year)
0
5,000
10,000
15,000
20,000
25,000
30,000
35,000
40,000
45,000
Avg
FY
05
FY
06
FY
07
FY
08
200
9
201
0
201
1
201
2
201
3
201
4
201
5
201
6
201
7
201
8
201
9
202
0
MWD "Penalty"
AlternativeSupply**
MWD @10%Cutback
Basin StorageWithdrawal
Spreading Credit
Basin Allocation
DemandForecast
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Pasadena Water and Power
Water Conservation Goals
Actual/Forecast Water Demand and Conservation Goals(Acre-Feet per Year)
0
5,000
10,000
15,000
20,000
25,000
30,000
35,000
40,000
45,000A
vg
FY
05
FY
06
FY
07
FY
08
2009
2010
2011
2012
2013
2014
2015
2016
2017
2018
2019
2020
Constrained Supply (AFY)
Actual/ Forecast Demand
10% Goal
20% Goal
30% Goal
Highlighted Goals:Highlighted Goals:
• Urban Accords – 10% by 2015Urban Accords – 10% by 2015
• California – 20% by 2020California – 20% by 2020
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Pasadena Water and Power
Supply Uncertainties Remain• Import Constraints
> Delta imports in flux> Future of drought?> MWD curtailments beyond FY 2010> Additional imports available at “penalty
rate”• Demand Reduction from Recycled
Water and Conservation Programs (?)• Regardless of Recent Rain, Supply
Issues Will Persist
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Pasadena Water and Power
Water Conservation PlanUpdate
Nancy Long
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Pasadena Water and Power
Comprehensive Water Conservation Plan
Approved by Council April 13, 2009
• New Conservation Emphasis:> Using price signals in rate design to
encourage conservation> Increased outdoor water efficiency> Maximizing new construction
efficiencies
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Pasadena Water and Power
Six Conservation Approaches
1. Conservation Rate Design2. Sustainable Water Supply
Ordinances3. Incentives for Water Efficient
Technology and Practices4. Direct Installation and Distribution5. Audits6. Information, Education and
Outreach
“PWP Water Conservation Effort is Not Business As Usual”
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Pasadena Water and Power
Conservation Approach 1: Conservation Rate Design
• Step 1 (to be completed by July 1, 2009)> Propose revenue increase to maintain fund health> Propose modifications to existing block rate
structure> Propose drought surcharge and allocation scheme> Complete classification of water customers > Improve water usage data on bills
• Step 2 (complete within 18 months)> Propose additional revenue increase> Evaluate effectiveness of Step 1 initiatives> Develop budget-based rate proposal (by Dec. 2009)> Propose water Public Benefits Charge
If allowable under Proposition 218> Implement budget-based rate and PBC (by July 1,
2010)
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Pasadena Water and Power
Conservation Approach 1: Proposed Rate Design
• Tiered Rates Sized According To Usage within Each Meter Size Class>Block 1: 0 to 35% of average use>Block 2: 35% - 80%>Block 3: 80% - 90%>Block 4: 90% - 95%>Block 5: >95%
Average Variable Water RateCommodity plus Capital Charge ($/Billing Unit)
0
1
2
3
4
5
6
7
8
9
Block 1 Block 2 Block 3 Block 4 Block 5
Proposed Retail Rates
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Pasadena Water and Power
Conservation Approach 2: Water Supply Ordinances
• Adopt Ordinances: Permanent Water Waste Prohibition: June 1 Modified Water Shortage Plan: June 1> State Model Landscape Ordinance: Nov. 2009
• Review/Update City Codes/Requirements:> Graywater & rainwater review: June 2009> Fixture replacement on resale: Summer 2009> New development requirements> Construction standards/building codes
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Pasadena Water and Power
New Permanent Water Waste Prohibitions
• No Watering Between 9 a.m. and 6 p.m. (hand watering and system repairs allowed)
• No Watering During Periods of Rain • No Excessive Water Flow, Runoff, or
Washing of Hard Surfaces• Obligation to Fix Leaks• Restaurants Required to Use Water
Conserving Dish Wash Spray Valves • Recirculation Systems Required for
Fountains, Car Washes, Commercial Laundry
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Pasadena Water and Power
Water Waste Prohibitions:Key Exemptions
• Water to Protect Public Health and Safety• Recycled Water, Gray Water, and Rainwater• Use by Commercial Nurseries and Growers• Hand Watering of Trees, Shrubs and
Vegetation Intended for Consumption• Landscape for Fire Protection and Erosion
Control• Rare Vegetation or Essential to Protected
Species• Public Parks, Playing Fields, School Grounds,
Golf Course Green And Day Care Centers – Allowed to Water at Least Two Days Per Week
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Pasadena Water and Power
Water Shortage Plan
• Reduce Consumption During Supply Shortages (Drought or Supply Limitations)
• Council Public Hearing to Determine:> Water Shortage Exits> Water Conservation Target (10%, 20%, etc.)> Shortage Plan Level 1, 2, 3, or 4
• Determination Takes Effect Immediately
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Pasadena Water and Power
Water Shortage Plan Levels
Level 1 2 3 4
Watering Days Per
Week
3 Summer1 Winter
2 Summer1 Winter
1 Summer1 Winter
No Irrigatio
n
Obligation to Fix Leaks,
Breaks or Malfunctio
ns
72 hours after
notification
48 hours after
notification
36 hours after
notification
24 hours after
notification
Additional Limitation
s/ Prohibitio
ns
N/A
Filling ornamental
lakes or ponds; washing vehicles
Filling residential pools/spas;
no new potable water
service
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Pasadena Water and Power
Conservation Approaches 3-6• Approach 3 & 4) Incentives & Direct Install
> Target high consumption, low efficiency uses> Target outdoor: Initiate turf replacement
incentive when funding becomes available from State
> Distribution of water efficient devices> Provide incentives in partnership with MWD
• Approach 5) Large User Audits> 56 of 150 commercial sites as of May 31 2009> Target multi-family & large residential in Phase II
(thru June 2010)• Approach 6) Education & Outreach
> Publications, workshops, demonstration sites, online tools
> Recognition
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Pasadena Water and Power
20% Conservation “Targets”
• “Growth Mitigation” includes building standards, new development offsets, ordinances (e.g., ROR)
• Indoor/Outdoor Use reductions from combination of cash incentives, landscape ordinance, audits, education, etc.
Sources of Conservation20% by 2020
(gallons per capita per day)
14 gpcd26%
5 gpcd10%
10 gpcd21%
1 gpcd3%
2 gpcd4%
8 gpcd15%
10 gpcd21%
Reclaim Water Project
Growth Mitigation
Rate Incentives
Indoor Use
Outdoor Use
Gray Water
Waste Prohibition
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Pasadena Water and Power
Comprehensive Water Conservation Plan
Questions?
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Pasadena Water and Power
Backup Slides Follow
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Pasadena Water and Power
Reclaim Water ProjectStatus
• At Risk Due to Budget Constraints• Commencing Long-Term Initiatives:
> Supply Contract Negotiations: Complete 7/10> Policies & Codes: Adopt by 2010> Seek Outside Funding: continually over next
24-36 months• Retain Consultant: July 2009• Update Feasibility Study: December
2009• Design: July 2009 – Sept 2010• EIR: Sept 2009 – Sept 2011• Construction: 2011 - 2012
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Pasadena Water and Power
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Pasadena Water and Power
Raymond Basin
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Pasadena Water and Power
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Pasadena Water and Power
Water Measurement
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Pasadena Water and Power