california s california’s drought

8/14/2019 California s Californias Drought

1/23

a er supp y con ons

Drought impacts and

response

Planning for a dry 2010

San Luis Reservoir


2/23

Climate Change Impacts to WaterClimate Change Impacts to WaterResourcesResources

Diminishing snowpack

patterns

Higher air/water

ecosystem health


3/23

2009 Water Su l Conditions2009 Water Su l Conditions 2009 Statewide runoff

Groundwater levels

declining

Major water supply

reservoirs remain low

State and federal water

projects restricted by

regu a ory ac ons o pro ecthe Delta

record lows

Lake Shasta


4/23

Lake McClure


5/23

Carryover StorageCarryover StorageMajor ReservoirsMajor Reservoirs(Trinity, Shasta, Oroville, Folsom, New Melones, Don Pedro, San Luis)(Trinity, Shasta, Oroville, Folsom, New Melones, Don Pedro, San Luis)

123%

100%

80

60

fAverage 78%

57%

66%

20Percent

Lake Oroville

2006 2007 2008 2009 proj.0


6/23

Lake Oroville 2005 Lake Oroville October 2008


7/23

San Luis Reservoir August 2008

an u s eservo r arc

San Luis Reservoir June 2009


8/23

drought period waterlevels

Water levels Aboutthe as drought

eriod water levels

SAMESAME

Water levelsdrou ht eriod water

BELOWBELOW

levels


9/23

Estimated 2009 Water SupplyEstimated 2009 Water SupplyYear Type

CVP Allocation SWP

2006 Wet 100% ag / 100% m&i 100%

2007 Dr 50% a / 75% m&i 60%

2008 Critical 40% ag / 75% m&i 35%

2009 Dr 10% a / 60% m&I 40%40%

Classifications: Wet, Above Normal, Below Normal, Dry, Critical


10/23

2009 Water Supply Conditions2009 Water Supply ConditionsDel t a Ex por t s

(not including water transfers)6

5.7maf Drought Impact~1.6 maf5

~

~500 mafFish Protection Actions (Bos)

4

3

2

1

0

Expected Annual Average(Pre 2008)

2009


11/23

Drought WaterBank

81,275

Private North toSouthTransfers

250,500

Private North toNorth Transfers

80,640

to SouthTransfers

,

San Luis

,


12/23

Drought 1991 vs. 2009Drought 1991 vs. 2009

10 million new residents

Shift from row crops to

ermanent cro s

Fish species at risk

flexibility of water

o erations

Climate change


13/23

2009 Projected Economic Impacts2009 Projected Economic Impacts

2009 job loss -

, - ,

2009 total gross income

- -

Farm revenue loss -

-

(excluding livestock,

,

pasture)


14/23

Drou htDrou ht Im actsIm acts 2008 - A riculture

$370M Water rationing

Fire

Economic

development

Hydropower

generation

Recreation

Air Quality


15/23

Drou ht Res onseDrou ht Res onse

Declaration

Emergency

Counties

Drought Emergency

Governor Schwarzenegger signs drought declaration


16/23

Statewide Water ConservationStatewide Water Conservation

ampa gnampa gn

w w w.saveour .orgw w w.saveour .org


17/23

Preparing for a Dry 2010

Drou ht

Preparedness Get Read

workshops

year s ra eg c p an

Consultation with

world wide drought

efforts

Folsom Reservoir


18/23

Pre arin for a Dr 2010Water

Conservation 20 b 2020

Recycled water -

purp e s e new

green

Statewide Save Our

Water program

saveourh2o.net Lake Oroville


19/23

Preparing for a Dry 2010

Water Supply

2010 water transfers& long-term program

CIMIS

on unc ve use an

groundwater mgnt

Emergency

response

Kaweah Reservoir


20/23

Lon Term ActionsLon Term Actions

conservation

Diversify regional

supplies

Increase storage

Sustain investment

California Aqueduct


21/23

When the well is drWhen the well is dr

we know the worthwe know the worth

of waterof water

Benjamin FranklinBenjamin Franklin


22/23


23/23

california s california’s drought

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