Menlo Park Municipal Water Department

Feb. 6, 2017, update: water supply change

In late-December 2016, the Menlo Park Municipal Water District's wholesaler, San Francisco Public Utilities Commission, temporarily changed the source of our typical water supply from the Hetch Hetchy Reservoir and began delivering water from local surface reservoirs along the Peninsula. This is necessary to accommodate inspections and repairs of the Mountain Tunnel pipeline that delivers water from the Hetch Hetchy Reservoir. The Hetch Hetchy shutdown is anticipated to continue through the beginning of March 2017. MPMWD customers may notice a change in taste and odor due to this change in water blend, and this typically subsides after a few days. Customers can try running the cold water for a few minutes to clear out water in pipes or consider using a filter to alleviate taste or odor issues. The water is safe to drink and continues to meet all drinking water standards. 
The City’s Menlo Park Municipal Water District serves approximately 16,000 residents through two service areas; the eastern service area and the western service area. The Department purchases 100 percent of its water from the San Francisco Public Utilities Commission, which delivers water from the San Francisco Regional Water System. On average, 85 percent of the regional water system's water comes from the Tuolumne River watershed and 15 percent comes from local watersheds in the East Bay and Peninsula

In addition to the Menlo Park Municipal Water District, there are three other water agencies that serve residents and businesses in different parts of Menlo Park. To determine your water provider, click on the interactive map below and enter you address. (Note: Palo Alto Park Mutual Water Company provides water to less than 10 residents on Menalto Drive, and is not included in the interactive map.)

Interactive Map

New connections

To install a new water meter or to upgrade an existing water meter to a larger size, follow the guidelines below.  Properties not served by the Menlo Park Municipal Water Department should contact their respective water provider directly.


Cross-connection control program

The San Mateo County Environmental Health manages the Menlo Park Municipal Department ’s cross-connection control program. They will send and receive test notifications, maintain a database, certify approved backflow testers, and perform backflow surveys to determine if backflow prevention is needed. They require that any backflow tester you hire must be listed on the County’s list of Certified Backflow Prevention Testers, and that the tester must tag assembles with a County tag. For information about Environmental Health’s cross connection program, please contact Kate Elgin from the County at 650-399-6919.