Golden State Water is proud to be San Gabriel Valley’s water provider since 1929, serving high-quality, reliable water to approximately 12,300 customers in portions of Arcadia, El Monte, Irwindale, Monrovia, Monterey Park, Rosemead, San Gabriel and Temple City.

Two water systems serve the area. Water delivered to customers in the South Arcadia System is groundwater pumped from the Main San Gabriel Basin. The basin underlies the San Gabriel Valley from Alhambra to San Dimas. Water delivered to customers in the South San Gabriel System is a blend of purchased water from the Upper San Gabriel Valley Municipal Water District and groundwater pumped from the Main San Gabriel Basin.

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 San Gabriel Customer Service Area with a 5/8 x 3/4” meter, using 8,228 gallons (1,100 cubic feet or 11 Ccf) of water per month, would see a monthly bill increase of $4.53 from $51.50 to $56.03 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 $2.3 million in infrastructure improvements are planned for 2017 in the San Gabriel 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 Releases Annual Water Quality Reports for 2016

Golden State Water recently released its Consumer Confidence Reports (CCR), highlighting that water quality across our 39 water systems met all state and federal standards throughout 2016. Read more.

Click here to view the CCR for your community.

Golden State Water Pleased To Participate in Concerts in the Park Temple City

This summer, Golden State Water will take part in this year’s Concerts in the Park series, supporting the wonderful community that is Temple City.

Click here to learn more.

San Gabriel Infrastructure Projects

Proactive system maintenance has always been an emphasis for Golden State Water, and we continually invest to improve our water systems by upgrading supply, treatment and delivery systems in all service territories.

Click here to view current and completed projects.

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