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North Central Region Office Programs:
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Watershed Assessment
Groundwater
Land & Water Use
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Sacramento-San Joaquin Delta
Surface Water

North Central Region Office
Department of Water Resources

(916) 376-9600

Street Address:

3500 Industrial Blvd.
West Sacramento, CA 95691

Mailing Address:

PO Box 942836
Sacramento, CA 94236




Department of Water Resources Logo
 Groundwater

Conjunctive Use

Conjunctive Use Photo 1

The deliberate combined use of groundwater and surface water is commonly termed "conjunctive use."

Conjunctive use means actively managing the aquifer systems as an underground reservoir. During wet years, when more surface water is available, surface water is stored underground by recharging the aquifers with surplus surface water.


During dry years, the stored water is available in the aquifer system to supplement or replace diminished surface water supplies.

Conjunctive use is an effective tool for increasing the overall water supply. DWR is studying several areas in the lower Sacramento Valley where conjunctive use operations may be possible.

Conjunctive Use Photo 2

Please refer to the DPLA Conjunctive Water Management site for more information regarding conjunctive use and conjunctive water management.

Click here for the Conjunctive Water Management Program Update - 2004 (PDF, 890KB).

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