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

Aspen publicly calls out irrigation systems as common cross-connections and says irrigation systems generally require a vacuum breaker.

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 publicly calls out irrigation systems as common cross-connections and says irrigation systems generally require a vacuum breaker.

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

  • The city lists irrigation systems among common cross-connection examples.
  • Aspen's public guidance says irrigation systems generally use a vacuum breaker.
  • Residential lawn sprinkler systems are a specific example of an isolation device.
Workflow

Workflow

  1. Confirm whether the assembly protects a lawn sprinkler or broader irrigation system.
  2. Use the device type Aspen's guidance expects for irrigation.
  3. Keep the annual test current through Aspen's tester and BSI workflow.
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.