Backflow testing for Menlo Park Municipal Water customers
Testing must be done by a certified backflow tester on San Mateo County’s list, on installation and at least once a year after that. BackflowCare tests assemblies for Menlo Park Municipal Water customers in Menlo Park, and files the results with Menlo Park Municipal Water.
- Area
- San Mateo County
- Cities we serve
- Menlo Park
- Annual test
- Owner hires a certified tester
- Deadline
- San Mateo County Environmental Health manages the City’s program and mails the account holder a letter when a test is due.
- Our price
- $199 per device ($25 off for new customers)
- Menlo Park Municipal Water contact
- water@menlopark.gov, 650-330-6740
Menlo Park Municipal Water testing rules
- Test results go to San Mateo County within 10 days of the test.
Source: Menlo Park Municipal Water backflow program (official page), checked October 17, 2026.
Menlo Park Municipal Water rules for new and replacement devices
- Devices are installed above ground after the water meter, typically no more than five feet from the property line.
- Installing a backflow device needs a City building permit; the annual test does not.
Source: Menlo Park Municipal Water backflow program (official page).
Menlo Park Municipal Water backflow questions
Who tests backflow devices for Menlo Park Municipal Water customers?
Testing must be done by a certified backflow tester on San Mateo County’s list, on installation and at least once a year after that.
Which cities does Menlo Park Municipal Water serve?
We serve Menlo Park Municipal Water customers in Menlo Park.
When is the Menlo Park Municipal Water backflow test due?
San Mateo County Environmental Health manages the City’s program and mails the account holder a letter when a test is due.