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Lafayette annual backflow testing

Lafayette gives annual due dates by assembly type: May 31 for irrigation systems and August 31 for other backflow devices.

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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 gives annual due dates by assembly type: May 31 for irrigation systems and August 31 for other backflow devices.

  • 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 systems are due by May 31.
  • Other backflow devices are due by August 31.
  • Late fees and shutoff risk are part of the city workflow.
Workflow

Lafayette workflow order

  1. Confirm whether the assembly is irrigation or another device class.
  2. Meet the correct annual due date in the Lafayette workflow.
  3. Keep the BSI-side record current before enforcement escalates.