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Lafayette irrigation backflow testing

Lafayette is a good irrigation page because the city publishes a separate irrigation due date rather than flattening everything into one generic annual deadline.

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City: Lafayette Utility: City of Lafayette Backflow Compliance Program Cadence: Annually Last verified: 2026-06-29
Local answer

What to check for Lafayette

Lafayette is a good irrigation page because the city publishes a separate irrigation due date rather than flattening everything into one generic annual deadline.

  • Due basis: Lafayette runs backflow compliance through the city utility and BSI Online. The city says annual backflow tests are due by May 31 for irrigation systems and by August 31 for all other backflow devices, with late fees and possible water shutoff if the device stays out of compliance.
  • Who is affected: Lafayette utility customers with irrigation systems or any other city-required backflow devices.
  • Program phone: 303-661-1272
Local signals

Signals that matter before you act

  • Irrigation assemblies come due earlier than the rest of the city's devices.
  • The BSI workflow still controls the reporting path.
  • Late fees and shutoff risk apply if the irrigation device stays out of compliance.
Workflow

Lafayette workflow order

  1. Treat irrigation assemblies as a separate May 31 deadline.
  2. Complete the annual test through Lafayette's utility workflow.
  3. Keep the BSI record current before late fees start to pile up.