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 also pumped from the Main San Gabriel Basin and the water system has the ability to supplement supplies with imported water from the Colorado River Aqueduct and the State Water Project (imported and distributed by the Metropolitan Water District of Southern California).

To view Golden State Water’s 2019 holiday schedule, please click here.

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 June 8, 2019, an average residential customer in the San Gabriel Customer Service Area with a 5/8 x 3/4” meter using 10 Ccf per month would see a monthly bill decrease of $0.94 from $52.70 to $51.76 compared to 2018 (excluding any applicable surcharges).
  • On May 30, 2019, Golden State Water’s GRC was approved by the State of California to set water rates for 2019, 2020 and 2021 and authorize infrastructure investments for the local system. New rates were implemented effective June 8, 2019. Click here to learn more.
  • On July 1, 2018, local water rates decreased by 3.21% to pass cost savings from the new lower federal corporate income tax requirement through to customers. Click here to learn more.
Golden State Water plans to invest approximately $115 million companywide for infrastructure projects in 2019, because proactive system maintenance is critical to protecting water service now and for future generations.

More than $1.9 million in infrastructure improvements are planned for 2019 in the San Gabriel service area.

The 2019 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 2019.

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

General Rate Case For 2019-21 Approved; New Rates Take Effect June 8, 2019

On May 30, 2019, Golden State Water’s General Rate Case (GRC) was approved by the State of California to set water rates for 2019, 2020 and 2021 and authorize infrastructure investments for the local system. New rates will be implemented on June 8, 2019.

Click here to learn more.

Customer Alert: Be Aware Of Utility Scams
Customer using cell phone with words "scam alert" written along the bottom of the image.

Golden State Water encourages customers to be alert of utility scams.

Click here are some general tips to help you avoid becoming a victim.

Delivering Drinking Water Is Serious Business

Golden State Water just released a new video on how it meets stringent state and federal water quality standards.

Click here for more information.

Golden State Water Donates More Than 8,000 Turkeys Through Operation Gobble

Happy turkey wearing Pilgrim-style hat During the month of November 2018, Golden State Water donated more than 8,000 turkeys through Operation Gobble to help families and individuals with limited resources.

Click here to learn more.