Backflow testing for Great Oaks Water customers
Great Oaks Water’s cross-connection program uses registered testing companies, which customers can look up through the program’s online system. BackflowCare tests assemblies for Great Oaks Water customers in San Jose, and files the results the way Great Oaks Water requires.
- Area
- Santa Clara County
- Cities we serve
- San Jose
- Annual test
- Owner hires a certified tester
- Filing results
- The program is administered for Great Oaks Water by BSI Online, where test status can also be checked.
- Our price
- $199 per device ($25 off for new customers)
- Great Oaks Water contact
- backflow@greatoakswater.com
Great Oaks Water testing rules
- Questions about the program go to backflow@greatoakswater.com.
Source: Great Oaks Water Company backflow program (official page), checked October 19, 2026.
Great Oaks Water backflow questions
Who tests backflow devices for Great Oaks Water customers?
Great Oaks Water’s cross-connection program uses registered testing companies, which customers can look up through the program’s online system.
Which cities does Great Oaks Water serve?
We serve Great Oaks Water customers in San Jose.
How are backflow test results filed with Great Oaks Water?
The program is administered for Great Oaks Water by BSI Online, where test status can also be checked.