southern california water dialogue

Southern California Water DialogueFebruary 26, 2014

2013 Hydrologic Conditions

Driest Calendar Year on Record

Percent of Average Precipitation (%)Calendar Year 2013

2014 Hydrologic Conditions

Driest Oct-Jan on Record

Percent of Average Precipitation (%) 10/1/2013 – 1/31/2014

Percent of Average Precipitation (%)Oct 2013 – Jan 2014

17%

2014 Hydrologic ConditionsPercent of Average Precipitation (%)

Water Year to Date

Still Below Average

41%

Statewide Impacts

Folsom Lake, Sacramento

January 2014

Almaden Reservoir, San Jose January 2014

Lake OrovilleDecember 2013

Lake Ghisolfo, CalistogaJanuary 2014

State of California Drought Emergency

Governor Brown declaration on January 17“Perhaps the worst drought California has seen since records began being kept”Calls for citizens to do their part and reduce water use by 20 percentLooks to clear the way for water transfers and exchanges

Recent EventsSecond snow survey is only 12% of normal snowpack to date (expected to improve)DWR reduced the SWP Table A Allocation to zero percent (January 31)SWRCB granted a joint DWR/USBR petition

Reduces Delta Outflow requirements to minimumProvides flexibility in Delta Cross Channel operations

OCT OCT NOV DEC JAN JAN FEB MAR APR APR MAY JUN JUL JUL AUGSEPT0

10

20

30

40

50

60

70

80

90

100

Cum

ulati

ve P

reci

pita

tion

(Inch

es)

Northern Sierra Hydrologic ConditionsEight Station Index WY 1922-2013

Max88.5

Min17.1

Avg50.446.2

4.5

17%

Before Storm

OCT OCT NOV DEC JAN JAN FEB MAR APR APR MAY JUN JUL JUL AUGSEPT0

10

20

30

40

50

60

70

80

90

100

Cum

ulati

ve P

reci

pita

tion

(Inch

es)

Northern Sierra Hydrologic ConditionsEight Station Index WY 1922-2013

Max88.5

Min17.1

Avg50.446.2

41%

12.9

4.5

After Storm

OCT OCT NOV DEC JAN JAN FEB MAR APR APR MAY JUN JUL JUL AUGSEPT0

10

20

30

40

50

60

70

80

90

100

Cum

ulati

ve P

reci

pita

tion

(Inch

es)

Northern Sierra Hydrologic ConditionsEight Station Index WY 1922-2013

Max88.5

Min17.1

Avg50.446.2

Colorado River Hydrologic ConditionsUpper Colorado Basin Snowpack

Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep0.0

3.0

6.0

9.0

12.0

15.0

18.0

Wat

er C

onte

nt (i

n)

Normal

Current Water Year

Previous Water Year

9.7

96%

Before Storm

Colorado River Hydrologic ConditionsUpper Colorado Basin Snowpack

Oct Nov Dec Jan Feb Mar Apr May Jun Jul Aug Sep0.0

3.0

6.0

9.0

12.0

15.0

18.0

Wat

er C

onte

nt (i

n)

Normal

Current Water Year

Previous Water Year

11.5112%

After Storm

Probability of Surplus/Shortage Based on January 2014 Conditions

Year Surplus Shortage

2014 0% 0%2015 0% 0%2016 4% 44%2017 7% 54%2018 12% 54%2019 15% 56%2020 21% 58%

2014 Available SupplyBased on Currently Allocated Supplies

SWP: 600 TAFTable A Allocation: 0 Storage & Programs: 600 TAF

CRA: 1.2 MAFPriority 4: 550 TAFColorado System Storage & Programs: 650 TAF

Winter storms may improve the

SWP Allocation

2014 Supply and Demand BalanceBased on Currently Allocated Supplies and Demands

Supply/Demand Balance Acre-Feet SWP Supply 600,000 CRA Supply 1,200,000Total Supply 1,800,000

Total Demand 2,000,000

In-Region Storage Requirement 200,000

2014 Supply and Demand Balance

Resource Mix0.0

500.0

1,000.0

1,500.0

2,000.0

2,500.0

CRA

SWP

In-Region

SWP improvement can increase supplies

2014 Supply and Demand Balance

Resource Mix0.0

500.0

1,000.0

1,500.0

2,000.0

2,500.0

CRA

SWP

In-Region

Conservation reduces storage depletion

2006 2007 2008 2009 2010 2011 2012 2013 20140

1

2

3

4

2.2 1.81.1 1.0

1.72.4 2.7 2.4

Emergency Storage Dry-Year Storage

Mill

ion

Acre

-Fee

tMWD Storage ReservesEnd of Year Balances*

*Estimated actual storage balances, may be subject to change.

2006 2007 2008 2009 2010 2011 2012 2013 20140

1

2

3

4

2.2 1.81.1 1.0

1.72.4 2.7 2.4

Emergency Storage Dry-Year Storage

Mill

ion

Acre

-Fee

tMWD Storage ReservesEnd of Year Balances*

*Estimated actual storage balances, may be subject to change.

Storage use will vary based on actual

conditions

Heavy dependence on imported supply

and SWP Diversions

Emphasis on Conservation, Local Supplies, and Storage & Transfers

Early 1990’s 2010 IRP Strategy

Diversification of Water Portfolio

CRA

Cons

SWP

Local Supplies

Storage & Transfers

CRA S

WP

Local Supplies

Storage & Transfers

Conservation & WUE

CURRENT AS OF 051711

Regional InvestmentsReducing Reliance on ImportsRegional InvestmentsReducing Reliance on Imports

21

Conservation: 900,000 af/yr

Recycling: 335,000 af/yr

Groundwater Recovery: 111,000 af/yr

Seawater: 46,000 af/yr (planned)

Conservation represents regional actions both active & passiveRecycling & groundwater represents total regional production 2012 (MWD & member agency)Seawater represents 3 planned local projects

-

1,000,000

2,000,000

3,000,000

4,000,000

5,000,000

6,000,000

MWD Storage Capacity

13x Increase in Capacity

Desert / Coachella

Lake Mathews& Lake Skinner

Castaic & Perris

Mojave Demo & Additional Prop. 13

Diamond Valley Lake

Lake Mead Demo

Kern Delta Prop. 13 Programs

Arvin Edison

Additional Lake Mead

Semitropic

Mojave Amendment

SummaryUnprecedented conditionsMetropolitan’s IRP has prepared

Metropolitan is prepared to use storage to meet demandsWater use efficiency is key region-wide

Metropolitan is taking drought actionsWater Supply AlertConservation and Recycled Water BudgetCoordination with other agencies

Regional InvestmentsReducing Reliance on Imports

Conservation: 900,000 af/yrRecycling: 335,000 af/yr

Groundwater Recovery: 111,000 af/yr

Conservation represents regional actions both active & passiveRecycling & groundwater represents total regional production 2012 (Metropolitan & member agency)

25

Seawater: 46,000 af/yr (planned)