Golden State Water serves 2,100 customers in the Clearlake Customer Service Area. As a member of the Clearlake community for more than 35 years, Golden State Water and its employees enjoy participating in annual events and take pride in being an active member of the community.

Water delivered to customers in the Clearlake System is surface water from Clear Lake, which is treated at Golden State Water’s Sonoma Water Treatment Plant.

As a regulated utility, Golden State Water’s rates are determined by the California Public Utilities Commission (CPUC) through a General Rate Case (GRC) to ensure customers receive a fair rate for reliable, quality water service.

  • Effective April 20, 2017, an average residential customer in the Clearlake Customer Service Area with a 5/8 x 3/4” meter, using 3,740 gallons (500 cubic feet or 5 Ccf) of water per month, would see a monthly bill increase of $7.78 from $78.11 to $85.89 compared to 2016 (excluding any applicable surcharges).
  • Golden State Water’s rates for 2016, 2017 and 2018 were approved by the CPUC in March 2017. The GRC approval was originally expected prior to Jan. 1, 2016, and the delayed approval prevented Golden State Water from implementing the new rates for 2016 on schedule (2015 rates remained in place during the delay period).
  • For additional information on local water rates and the GRC, please click here.
  • To review frequently asked questions about the GRC, read our fact sheet. English | Spanish

More than $300,000 in infrastructure improvements are planned for 2017 in the Clearlake service area.

The 2017 investments include water supply enhancements, distribution and ongoing improvements designed to replace old meters, mains and safety equipment. Click here to learn more and access a list of projects planned for 2017.


On April 7, 2017, Governor Jerry Brown issued an executive order lifting the drought emergency for most of the state, while asking Californians to continue using water responsibly and make conservation a way of life.

Local water-use and outdoor irrigation restrictions implemented during the drought emergency have been lifted.

Local News & Updates

Drought’s Impact on Water Bills – FAQ About the WRAM/MCBA
Picture of reservoir showing drought conditions

California’s drought emergency has impacted all water customers and utilities throughout the state.

Click here to learn more about the drought’s impact on water bills and the WRAM/MCBA balancing accounts.

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Critical Tips To Protect Your Water Pipes This Winter

IcicleGolden State Water is sharing tips to help customers prevent pipe emergencies caused by freezing temperatures this winter.

Click here to read the customer email that was recently issued for your area.

Flood Preparedness Information & Tips
flood preparedness image

Golden State Water would like to remind customers that heavy rainfall from El Niño conditions could cause major flooding in the Clearlake CSA.

Click here for more information and preparedness tips.