Golden State Water has been a water provider for a portion of Simi Valley since 1965. We are proud to serve quality, reliable water to approximately 13,300 customers.

Office Location
Simi Valley CSA
4680 E Los Angeles Ave. Ste H
Simi Valley CA 93063  

Average Monthly Residential Water Usage in Simi Valley

  • The average monthly residential water usage in Golden State Water’s Simi Valley Customer Service Area is approximately 13 Ccf, the equivalent of 1,300 cubic feet or 9,724 gallons.
  • Average water bill is currently $50.56, excluding any applicable credits or surcharges.
  • Water delivered to customers in the Simi Valley System is treated surface water purchased from the Calleguas Municipal Water District, which obtains its supply from Metropolitan Water District of Southern California. The primary water supply is also supplemented with groundwater from the Simi Valley Groundwater Basin.

Urban Water Management Plan (UWMP)

UWMPs are prepared to ensure adequate water supplies are available to meet existing and future water demands. Every five years, Golden State Water and all water systems that supply more than 3,000 acre-feet of water per year or serve more than 3,000 connections are required to update their UWMPs. See Golden State Water’s 2010 Simi Valley System UWMP.

  • Golden State Water plans $864,000 in local improvements in 2012.
  • Read more.

Local News & Updates

Read the Latest Edition of Waterways

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WRAM/MCBA Update for Customers in Simi Valley
GSWC-1

Discover how the current WRAM/MCBA impacts your bill.

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Golden State’s Operation Gobble Helps Families in Need

Golden State Water distributes more than 700 holiday turkeys to local charities. 

Read more.

New Customer Rates Approved by California Public Utilities Commission, Effective May 22

General Rate Case Decision Reflects a Balance of Needed Infrastructure Investments and Rates.

Facts for Simi Valley customers.