Golden State Water has been serving the Placentia area since 1929. We are proud to provide high-quality, reliable water service to approximately 15,500 customers in Placentia and portions of Anaheim, Cowan Heights, Lemon Heights, Orange and Yorba Linda.

Three water systems serve the Placentia Customer Service Area. Water delivered to customers in the Cowan Heights, Placentia, and Yorba Linda systems is a blend of groundwater pumped from the Orange County Groundwater Basin and imported water from the Colorado River Aqueduct and State Water Project (imported and distributed by Metropolitan Water District of Southern California).

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 Placentia Customer Service Area with a 5/8 x 3/4” meter, using 8,976 gallons (1,200 cubic feet or 12 Ccf) of water per month, would see a monthly bill increase of $5.05 from $54.72 to $59.77 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, please click here. To review frequently asked questions about water rates, read our fact sheet. English | Spanish
  • For additional information on proposed water rates for the years 2019, 2020 and 2021, please click here.

More than $7.5 million in infrastructure improvements are planned for 2017 in the Placentia 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.

To view current and completed projects in your area, click here.

Urban Water Management Plan (UWMP)
Every five years, UWMPs are prepared for systems that supply more than 3,000 acre-feet of water per year or serve more than 3,000 connections. UWMPs are prepared to support long-term planning goals and ensure that adequate water supplies are available to meet existing and future water demands.

Please click here to learn more or view the UWMP for your area.


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

Golden State Water Concludes Orange County Flushing Maintenance Procedure

Golden State Water would like to thank our Orange County customers for their patience and cooperation while we flushed water mains, to help maintain high water quality in your community.

Click here for more information.

Golden State Water Recognizes ‘Infrastructure Week’

In recognition of “Infrastructure Week” from May 15-19, 2017, Golden State Water is highlighting plans to invest more than $7.5 million for local water infrastructure projects in 2017.

Click here to learn more.

Golden State Water Sponsors Yorba Linda’s 5th Annual Shamrock ‘n Run

On March 19, St. Jude Medical Center hosted its annual ShamRock ‘n Run in support of the R.E.A.C.H. Foundation.

Golden State Water enjoyed meeting customers for a family-fun filled day!

Click here to read more.

Customer Update: Water Supply Adjustment For Orange County District

Golden State Water would like to notify customers served throughout its Orange County District (Placentia and Los Alamitos service areas) of a water supply adjustment to offset production from the local groundwater basin.

Click here to learn more.