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Lewisville irrigation backflow testing

Lewisville explicitly names irrigation as one of the common property types that require backflow assemblies and recurring testing.

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City: Lewisville Utility: City of Lewisville Backflow Testing Cadence: At installation and at least once per year thereafter Last verified: 2026-06-29
Local answer

What to check for Lewisville

Lewisville explicitly names irrigation as one of the common property types that require backflow assemblies and recurring testing.

  • Due basis: Lewisville says backflow prevention assemblies must be tested at installation and at least once per year thereafter by a licensed tester registered with the City. Test reports must be submitted electronically through BSI Online within ten days of the test date.
  • Who is affected: Irrigation, fire sprinkler, commercial, industrial, multi-family, and other properties the City deems a cross-connection hazard.
  • Program phone: 972-219-3400
Local signals

Signals that matter before you act

  • Irrigation is not treated as a side topic; it is one of the first examples on the official page.
  • Residential irrigation users still have to respect the same tester registration and BSI submission rules.
  • Late report submission can keep an irrigation job noncompliant even after the field test is done.
Workflow

Lewisville workflow order

  1. Confirm the irrigation system has the required assembly in place.
  2. Choose a Lewisville-registered tester who can handle the actual device type.
  3. Make sure the completed test is submitted through BSI within ten days.