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City of Aspen Cross Connection Control AKA Backflow Prevention Program fire line backflow rules

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

Utility: City of Aspen Cross Connection Control AKA Backflow Prevention Program Last verified: 2026-04-05 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.
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Direct answer

What matters here

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.

Highlights

Highlights

  • 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

Workflow

  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.
Residential

Residential

  • Aspen explicitly mentions residential lawn sprinkler systems as an isolation-device example.
  • Residential users are not outside the system if they have irrigation or another protected cross-connection risk.
Commercial focus

Commercial and managed properties

  • Commercial and multi-family accounts have been in Aspen's containment program for years and sit on a clear annual cadence.
  • The BSI workflow makes Aspen operationally stronger than a generic city explainer page.
FAQ

Local questions people actually ask

Does City of Aspen Cross Connection Control AKA Backflow Prevention Program require annual backflow testing?

At least annually, plus on installation and after repair. 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 by City of Aspen Cross Connection Control AKA Backflow Prevention Program backflow rules?

Commercial, multi-family, irrigation, fire-system, and other protected water services inside Aspen's cross-connection control program.

How do I submit or confirm a backflow test for City of Aspen Cross Connection Control AKA Backflow Prevention Program?

Use the official utility workflow and submission methods listed on this page: Aspen cross connection control program, BSI Online tester portal, Aspen flyer and tester list. Program phone: 970-920-5110.

Where should I look for testers for City of Aspen Cross Connection Control AKA Backflow Prevention Program?

Start with the governing authority's published tester list. This utility has an official approved-tester route and it should be treated as the primary source.