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Durango irrigation backflow testing

Durango specifically calls out commercial irrigation systems and irrigation systems with fertilizer injection as examples that require testable assemblies.

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City: Durango Utility: City of Durango Backflow Prevention Cadence: Upon installation, after repair, and annually Last verified: 2026-06-29
Local answer

What to check for Durango

Durango specifically calls out commercial irrigation systems and irrigation systems with fertilizer injection as examples that require testable assemblies.

  • Due basis: Durango says backflow preventers are required to be tested upon installation, after any repairs, and once annually. All test reports must be emailed to [email protected] within five days, and property owners must keep reports for three years.
  • Who is affected: Customers with a city water service where Durango identifies a potential cross connection, including irrigation, heating, beverage, and fire suppression uses.
  • Program phone: 970-375-4882
Local signals

Signals that matter before you act

  • Commercial irrigation is explicitly listed on the page.
  • Fertilizer-injection irrigation systems are named as cross-connection risks.
  • The same annual and five-day reporting rules still apply.
Workflow

Durango workflow order

  1. Confirm whether the irrigation setup includes fertilizer injection or another higher-risk condition.
  2. Use a Durango-listed tester to inspect the assembly.
  3. Return the result to the city within five days and keep the record.