Backflow test report submission directory

Every water purveyor in the United States requires annual backflow preventer testing — but every one of them accepts the test report differently. Some take reports by email, some route testers through a third-party portal like BSI Online, EnviroTrax, or SwiftComply, and each state has its own form requirement. This directory covers 49,645 public water systems across all 50 states, the District of Columbia, and the US territories: pick your state, find your purveyor, and see exactly how to file — the submission channel, the portal vendor and fees where one applies, and the official state form the report must be on.

Sourced from the EPA SDWIS federal registry and maintained by BackflowGo, the submission platform for backflow testers. Counts refresh daily.