Failed-test city route

Denver failed backflow test

Use this page when the assembly already failed and the next step is repair, retest, and accepted report submission.

City: Denver Utility: Denver Water Cross-Connection Control and Backflow Prevention Program Cadence: Upon installation and annually thereafter Last verified: 2026-06-29
Local answer

What to check for Denver

Use this page when the assembly already failed and the next step is repair, retest, and accepted report submission.

  • Due basis: Denver Water sends a testing reminder 30 days before the annual test is due, expects certified testers to report results to the Cross-Connection Control office, and can assess a $250 penalty after repeated ignored notices.
  • Notice or device clue: Look for the utility name, service address, assembly serial number, account or notice ID, and due date.
  • Who is affected: Commercial, industrial, domestic, irrigation, fire-line, and auxiliary-water-supply customers when Denver Water requires an approved assembly.
  • Acceptance rule: Use the listed submission method and keep proof that the report was filed with the utility.
  • Report workflow: Denver Water test report email workflow
  • Credential gate: Certified backflow prevention assembly tester status, ABPA or ASSE certification for domestic and irrigation backflow assemblies, State of Colorado Fire Suppression System Contractor-Backflow certification for fire assemblies
  • Program phone: 303-893-2444
Evidence-backed next step

Use the governing utility workflow

City search demand maps directly to Denver Water's governing program.

Notice-to-closeout map

Source-backed procedure before the record is treated as closed

This is the working path for Denver notices: match the authority, confirm the tester gate, use the accepted submission route, and keep proof that the report was accepted.

Local signals

Signals that matter before you act

  • Denver Water sends reminder letters and can assess a $250 penalty.
  • Irrigation testing is seasonal rather than generic year-round filler.
  • Fire-line and auxiliary-water cases are explicitly called out in the public program.
Other Denver routes

Stay inside the city intent cluster

Workflow

Denver workflow order

  1. Confirm the service is in Denver Water's backflow program.
  2. Use a certified tester to test the assembly on installation and annually thereafter.
  3. Send the report to the cross-connection control office.
  4. If delays are unavoidable, contact Denver Water before the service reaches suspension status.
City FAQ

Denver questions before you act

What should I do after a failed backflow test in Denver?

Denver Water sends reminder letters and can assess a $250 penalty.

Does a failed test still need report submission in Denver?

Use the listed submission method and keep proof that the report was filed with the utility.

Who controls the rule for Denver?

Denver search demand is routed to Denver Water Cross-Connection Control and Backflow Prevention Program. Commercial, industrial, domestic, irrigation, fire-line, and auxiliary-water-supply customers when Denver Water requires an approved assembly.

What costs or fees should I expect for Denver?

Testing is market-priced, but Denver Water adds real compliance cost through penalties and suspension risk. Repair and retest cost varies widely by domestic, irrigation, or fire-line assembly type. The financial risk is not just the tester invoice; it is also Denver Water's penalty and service-interruption exposure.