Backflow testing for North Coast County Water customers
North Coast County Water District uses San Mateo County’s list of certified backflow testers and the County’s test form for its program. BackflowCare tests assemblies for North Coast County Water customers in Pacifica, and files the results with North Coast County Water.
- Area
- San Mateo County
- Cities we serve
- Pacifica
- Annual test
- Owner hires a certified tester
- Deadline
- The tester sends the test report to County Environmental Health within 10 calendar days.
- North Coast County Water fee
- Late testing can bring administrative fines of up to $500 per day, per assembly.
- Our price
- $199 per device ($25 off for new customers)
North Coast County Water testing rules
- In the San Mateo County program, only a County-certified backflow tester may test assemblies.
- Assemblies must be tested at least once a year, and again after installation or repair.
Source: North Coast County Water District backflow program (official page), checked October 19, 2026.
North Coast County Water backflow questions
Who tests backflow devices for North Coast County Water customers?
North Coast County Water District uses San Mateo County’s list of certified backflow testers and the County’s test form for its program.
Which cities does North Coast County Water serve?
We serve North Coast County Water customers in Pacifica.
When is the North Coast County Water backflow test due?
The tester sends the test report to County Environmental Health within 10 calendar days.
Does North Coast County Water charge a backflow fee?
Late testing can bring administrative fines of up to $500 per day, per assembly. It is separate from our $199 test price.