Important Drought Notice: California is in a drought emergency, and the State Water Resources Control Board has instructed Golden State Water’s Claremont, Montclair, Pomona and Upland customers to reduce water use by 30% compared to 2013.

CSA Drought Image
System Reduction
Claremont 30%** 35.2% 35.7% 
* Total from June 1, 2015 – June 19, 2016 (compared to 2013 usage)
**Adjusted by SWRCB, effective March 1, 2016

Currently meeting reduction goal

In order to achieve the mandatory reductions established by the State Water Resources Control Board, the following Staged Mandatory Water Conservation and Rationing plan has been filed for the local water system.

Current Stage: Stage 1, effective July 1, 2015

Stage 1: Outdoor irrigation limited to two days per week, before 9 am or after 5 pm; even addresses on Monday and Thursday, odd addresses on Tuesday and Friday
Stage 2: Irrigation restrictions from Stage 1; $2.50 emergency surcharge per CcF over allocation
Stage 3: Irrigation restrictions from Stage 1; $5 emergency surcharge per CcF over allocation
Stage 4: Irrigation restrictions from Stage 1; $10 emergency surcharge per CcF over allocation

To learn more, please click here to visit the Drought Page of our website.

Golden State Water has proudly served the community of Claremont for more than 80 years. First constructed in the early 1900s, Claremont has a mature water system. Golden State Water has remained committed to quality, investing in the system so that it can reliably serve the approximately 11,000 customers in Claremont, and portions of Montclair, Pomona, and Upland. With 11 local employees serving customers 24/7, Golden State Water is committed to Claremont.

Office Location
Claremont CSA
915 W Foothill Blvd, Suite E
Claremont, CA 91711
General Manager: Benjamin Lewis
Office Hours: 8 a.m. to 5 p.m., Monday – Friday, excluding holidays 
Average Monthly Residential Water Usage in Claremont
  • Average monthly usage for residential customers in Claremont is 21 Ccf, the equivalent of 2,100 cubic feet or 15,708 gallons. This is driven primarily by larger homes and more outdoor water use.
  • The City’s water comes from two sources.  Sixty (60) percent comes from local groundwater supplies, which Golden State Water maintains. The balance is imported from the Metropolitan Water District of Southern California (MWD) via Three Valleys Municipal Water District.  Imported water is more expensive than local groundwater as MWD rates have increased by almost 100 percent since 2006.
  • Golden State Water imports 36 percent of Claremont’s water to meet demand.

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 Claremont UWMP.
Claremont hot spot water usageClaremont water usage graphic


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

Local News & Updates

Update Regarding State-Issued Emergency Drought Regulations
capitol drought

The state of California recently adopted new emergency drought regulations and made existing water waste restrictions permanent.

Click here for an update.


More than $90 million has been invested in the Foothill District’s water infrastructure

Golden State Water has invested more than $700 million over the last decade on effective infrastructure improvements throughout the state.

Click here to see the most significant projects completed in your service area.

Local Third-Grader Shares His Water Saving Invention
Drought Bot

Local third grader was proud to show off his “Drought Bot” water saving project with our local Golden State Water office.

Click here to read more.

State-Issued Conservation Mandates Adjusted For Some Water Systems

drought picThe State of California recently revised conservation mandates for several water systems throughout the state, including 14 systems served by Golden State Water.

Click here to read more.