Water Quality Report

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The City of Monterey Park is committed to keeping you informed about the quality of your drinking water. The following information is provided on an annual basis to inform you of where your drinking water comes from, the constituents found in your drinking water, and how the water quality compares with regulatory standards. We are proud to report that during the year 2013, the drinking water provided to you continues to meet or surpass all federal and state drinking water standards. As always, the city remains committed to providing you with a reliable supply of high quality drinking water.

Media reports of lead in the city water system


Recent articles dated March 2016 in the Desert Sun and USA Today reported inaccurate levels of lead in the city water system. Please click here for an explanation of the error. The correct level of lead is provided in this report that was submitted to the Department of Public Health. A copy of the correct levels from the Calif. State Water Resources Control Board website is also available for download.

The city also discussed the issue via an on-air interview during radio station 89.3 KPCC's "AirTalk" program.

Voice Your Opinion


Should you be interested in expressing your views or participating in decisions that may affect the quality of water, the City Council meets regularly on the first and third Wednesday of each month at 7 p.m. at 320 West Newmark Avenue, Monterey Park.

Where the Water Comes From


Monterey Park's water supply comes from production wells located outside the city limits. These wells are in the Main San Gabriel Groundwater Basin. In addition, the city purchased water from San Gabriel Valley Water Company (SGVWC), which also pumps groundwater from the Main San Gabriel Basin. The water is tested and disinfected with chlorine before it is delivered to your home.

Additional Information


For additional information relating to the water quality reports, please use the following links: