Tester city route

Modesto approved backflow testers

Use this page when the search or notice says approved, certified, registered, or authorized backflow tester for Modesto.

City: Modesto Utility: City of Modesto Cross-Connection and Backflow Control Program Cadence: Upon installation and at least annually thereafter for protected assemblies Last verified: 2026-06-29
Local answer

What to check for Modesto

Use this page when the search or notice says approved, certified, registered, or authorized backflow tester for Modesto.

  • Due basis: Modesto runs a utility-side cross-connection program and exposes a certified tester list from the official page.
  • Who is affected: Modesto services with irrigation, commercial, industrial, or other cross-connection risk.
  • Program phone: 209-342-2246
Local signals

Signals that matter before you act

  • Open the Modesto certified tester list from the official program page
  • Confirm tester status on the governing list before treating a provider as approved.
  • Use the utility workflow for deadlines, report acceptance, and submission requirements.
Workflow

Modesto workflow order

  1. Check whether the property is inside Modesto's program.
  2. Use a certified tester from the official city path.
  3. Complete the test or retest.
  4. Keep the city's accepted compliance record current.