Groundwater BankingToward Sustainable Groundwater in Agriculture Conference
An Overview of Operations and Challenges Due to Surface Water
Restrictions
Where Is Kern County?
Toward Sustainable Groundwater in Agriculture Conference
California’s Hydrology
Very WetVery Wet Rain does not
fall wherefall where people live
Very DryVery DryVery DryVery Dry
Toward Sustainable Groundwater in Agriculture Conference
How is Water Moved in California?
Lake OrovilleLake Shasta
Sacramento-San Joaquin Delta
Folsom Lake
Madera Canal
Friant-Kern Canal
Isabella Reservoir
San Luis Reservoir
Delta Mendota CanalKern County
California Aqueduct
Toward Sustainable Groundwater in Agriculture Conference
Kern County Agriculture
About one third of About one-third of Kern’s area is on the valley floor, which is intensively cultivated.
ThereThere areare over 800 000 irrigated acresover 800 000 irrigated acres on the valley floor oneon the valley floor one-- There There are are over 800,000 irrigated acres over 800,000 irrigated acres on the valley floor, oneon the valley floor, one--third of which were permanent crops, in process of expanding third of which were permanent crops, in process of expanding permanent and decreasing annual.permanent and decreasing annual.
Kern consistently ranks 3rd or 4th in the state in value of production.
Toward Sustainable Groundwater in Agriculture Conference
Irrigated Acreage
800000
900000
600000
700000
cres
300000
400000
500000Ac
100000
200000
300000
0
100000
1920 1930 1940 1950 1960 1970 1980 1990 2000 2007
Toward Sustainable Groundwater in Agriculture Conference
Top Ten Commodities – Kern County 2008
1. Milk, Market & Manufacturing
2 Grapes all
$ 602
$ 562
Millions
2. Grapes, all
3. Citrus, all
4. Almonds (including by-products)
5 C t (f h & i )
$ 562
$ 487
$ 387
5. Carrots (fresh & processing)
6. Hay, Alfalfa
7. Cattle & Calves
$ 378
$ 283
$ 221
8. Pistachios
9. Potatoes, all
10. Silage & Forage
$ 192
$ 93
$ 9210. Silage & Forage $ 92
Toward Sustainable Groundwater in Agriculture Conference
A l A (1970 2007)
Kern County Water Sources
Percent AF/Year
Kern River 20% 760,000
State Water Project 1 23% 840 000
Annual Average (1970-2007)
State Water Project 23% 840,000
Federal (CVP) 11% 400,000
Local Streams and other sources 9% 320,000,
Groundwater
Landowner/Districts (Basin) 37% 1,400,000
In-County Banking
Conservation/Fallowing
TOTAL 100% 3,720,000 2
1Maximum annual State Water Project allocation of Table A water is about 1,000,000 acre-feet (AF)
2Applied water
Toward Sustainable Groundwater in Agriculture Conference
Delano-Earlimart Rag Gulch WD
Kern County Water Districts
ID
Kern-Tulare WD
Devils Den WDIsabella
Reservoir
46
Semitropic WSD
Southern San
Joaquin MUD
North Kern
Lost Hills WD
Berrenda Mesa WD
46
Olcese
5Rosedale-Rio Bravo
WSD
Shafter-Wasco
ID
WSD Cawelo WD
I5
33
178
Belridge WSD
B k fi ld
Sources of Supply
WD58
KERN RIVER DISTRICTS740 000 af
KCWA Improvement District No. 4
Kern Delta WDHenry
Arvin-Edison WSD11933
58
BakersfieldCross Valley Canal
CVP FRIANT-KERN DISTRICTS387,000 af
CVP CVC DISTRICTS
5
166
740,000 afTehachapi-Cummings
CWDWheeler Ridge-Maricopa WSD
West Kern WD
Henry Miller WD
184
I5
99
I5
KCWA SWP MEMBER UNITS1961 – 1,000,000 af2005 – 700,000 af2009 530 000 af
4 0 4 8
Tejon-Castac WD
53,000 af
Lebec CWD
2009 – 530,000 af
Toward Sustainable Groundwater in Agriculture Conference
Water Supplies and Demands, SJV Portion of Kern
4000000
4500000
5000000
3000000
3500000
4000000-f
eet
Additions toGroundwater
1500000
2000000
2500000
Acr
e- Storage
WithdrawalsfromGroundwaterStorage
500000
1000000
1500000
0
1970
1972
1974
1976
1978
1980
1982
1984
1986
1988
1990
1992
1994
1996
1998
2000
2002
2004
2006
Local CVP SWP Net Water Requirements
Toward Sustainable Groundwater in Agriculture Conference
Four Keys to Success with Groundwater Banking
Multiple Water Supplies
Facility Infrastructure
Local Management and Support
Soils, Geology, Good Water
Quality pp
Toward Sustainable Groundwater in Agriculture Conference
Kern County Groundwater Banking Programs
Delano-Earlimart ID Rag Gulch WD
Kern-Tulare WD
Southern San
Joaquin MUDSemitropic
Lost Hills WD
Berrenda Mesa WD
Devils Den WD Isabella Reservoir
California Aqueduct
Semitropic Semitropic WSD
City of Bakersfield 2,800 AcresBerrenda Mesa BankingPioneer BankingKern Water Bank5
55
5 43
4633
46North Kern WSD Cawelo
WDShafter-
Wasco ID
Semitropic WSD
Belridge WSD
WSDWSD
Cawelo WD
North Kern WSD
Kern Water BankSemitropic/MWD/et al BankingArvin-Edison/MWD BankingID4/KTRG Banking
5
5
5
5
5
43
58
58
Rosedale-Rio Bravo WSD KCWA
Improvement District No.
4 Arvin
Bakersfield
Arvin- Kern Delta/MWD BankingElk Hills
Rosedale-Rio Bravo WSD KCWA
Improvement District No. 4
ID4/KTRG BankingBuena Vista BankingRosedale-Rio Bravo Banking
Kern County has 5 5
555
5
119
99 1
33
Arvin-
Edison
WSD
Kern Delta WD
Wheeler Ridge-Maricopa WSD
Henry Miller WDWest Kern
WD
ArvinEdison WSDKern Delta WD
Wheeler Ridge- Wheeler Ridge-Maricopa (proposed)
gCawelo/Dudley Ridge BankingNorth Kern Banking (proposed)
made major investments since the 1987-92 drought.
5
166
55
184
Maricopa WSDMaricopa WSD
Useable groundwater basins
Toward Sustainable Groundwater in Agriculture Conference
Facing East
Kern Fan Groundwater Banking Projects
Toward Sustainable Groundwater in Agriculture Conference
Facing Southwest
Kern Fan Groundwater Banking Projects
Toward Sustainable Groundwater in Agriculture Conference
Joint Groundwater Banking Project – Basin 1
Berrenda Mesa / Kern County Water Agency
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Kern Fan Groundwater Banks
Toward Sustainable Groundwater in Agriculture Conference
Groundwater Banking Development
Large Operation
o From 1978-2007...
Total Recharge: 5,655,429 afTotal Recovery: 2,628,840 af
Current Storage: 3,026,589 afKern Fan Banking Projects 2005
Groundwater Banking Investments
o 1977 2005 capital investment > $300 milliono 1977-2005 capital investment > $300 million
Toward Sustainable Groundwater in Agriculture Conference
Challenges
Dry years and regulatory actions have driven groundwater levels downgroundwater levels down
Deeper wells and more pumps Deeper wells and more pumps = higher costs
O 600 ll ho Over 600 new wells have been drilled in Kern County since 2007
Toward Sustainable Groundwater in Agriculture Conference
What Lies Ahead, or below...
Need a Delta solution
o Long-term solution
o Groundwater banking is like a financial institution, if there isn’t any money (surface water) a bank is useless.
Need short-term measures to help us survive until we have a Delta solution
To San Francisco
Stockton
Need to address concerns regarding local groundwater conditions Clifton Court Forebay
The Delta
California Aqueduct
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Contact Information
Kern County Water Agency3200 Rio Mirada DriveBakersfield, CA 93308
Phone: (661) 634-1400F (661) 634 1428Fax: (661) 634-1428
Mailing Address:P.O. Box 58Bakersfield CA 93302 0058Bakersfield, CA 93302-0058
Toward Sustainable Groundwater in Agriculture Conference
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