Annual city route

Castle Rock annual backflow testing

Castle Rock Water says annual backflow testing is required and only certified testers may do the work in town.

City: Castle Rock Utility: Castle Rock Water Cross-Connection and Backflow Program Cadence: Annually Last verified: 2026-06-29
Local answer

What to check for Castle Rock

Castle Rock Water says annual backflow testing is required and only certified testers may do the work in town.

  • Due basis: Castle Rock says annual testing is required, compliance is managed by Castle Rock Water, and only certified testers may work in town.
  • Who is affected: Castle Rock Water customers with irrigation, fire suppression, and other protected assemblies that require certified annual testing.
  • Program phone: 720-733-6000
Local signals

Signals that matter before you act

  • Annual testing is explicit.
  • Only certified testers may test in Castle Rock.
  • The public tester list requires current certification, gauge calibration, and insurance.
Workflow

Castle Rock workflow order

  1. Confirm the device is inside Castle Rock Water's program.
  2. Choose a certified tester from the town list.
  3. Complete the annual test and keep the local record current.