
D.c. Water and Sewer Authority is a public water system in District of Columbia. Backflow preventer assemblies on its distribution system must be tested by a certified tester and the test report filed with the purveyor — here is how filing works.
D.c. Water and Sewer Authority takes backflow test submissions through Acquaa (DC Water). Testers enter each test in the portal themselves — no bulk upload exists for any portal vendor — so BackflowGo preps your re-key sheet (every value in the portal's entry order) and routes you to Acquaa (DC Water) to file.
District of Columbia does not mandate a single statewide test form. Most purveyors accept the standard USC/AWWA-style report, which BackflowGo generates — requirements live at the purveyor level.
Listing data is sourced from the EPA SDWIS federal registry and BackflowGo's own purveyor research. All District of Columbia water systems →