Fire-line city route

Aspen fire-line backflow testing

Aspen specifically calls out fire systems and says fire systems generally use a double check backflow preventer.

City: Aspen Utility: City of Aspen Cross Connection Control AKA Backflow Prevention Program Cadence: At least annually, plus on installation and after repair Last verified: 2026-06-29
Local answer

What to check for Aspen

Aspen specifically calls out fire systems and says fire systems generally use a double check backflow preventer.

  • Due basis: Aspen says initial notifications now come directly from BSI and testers are required to submit reports online through BSI. The city also says containment devices are tested at least annually and residents receive a reminder before the anniversary of the test date.
  • Who is affected: Commercial, multi-family, irrigation, fire-system, and other protected water services inside Aspen's cross-connection control program.
  • Program phone: 970-920-5110
Local signals

Signals that matter before you act

  • Aspen includes fire systems in its common cross-connection examples.
  • The city guidance says fire systems generally use a double check backflow preventer.
  • Aspen's tester list separates domestic-and-irrigation capability from fire-capable testers.
Workflow

Aspen workflow order

  1. Confirm whether the service is fire, domestic, or irrigation.
  2. Choose a tester from Aspen's list who covers fire work when needed.
  3. Keep the fire assembly inside Aspen's annual and portal-based compliance loop.