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Annual testing

City of Modesto Cross-Connection and Backflow Control Program annual backflow testing

Modesto keeps protected assemblies inside the city's certified-tester workflow.

Utility: City of Modesto Cross-Connection and Backflow Control Program Last verified: 2026-04-05 Due basis: Modesto runs a utility-side cross-connection program and exposes a certified tester list from the official page.
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Direct answer

What matters here

Modesto keeps protected assemblies inside the city's certified-tester workflow.

Due basis: Modesto runs a utility-side cross-connection program and exposes a certified tester list from the official page.

Highlights

Highlights

  • The city exposes a certified tester list.
  • The program is framed around drinking-water protection.
  • Protected services should stay on the city workflow.
Workflow

Workflow

  1. Confirm the service is inside Modesto's program.
  2. Choose a tester from the city path.
  3. Complete the annual or post-install certification.
Residential

Residential

  • Residential demand is strongest where irrigation or another protected service exists.
  • This is a utility compliance page, not generic homeowner plumbing content.
Commercial focus

Commercial and managed properties

  • Commercial value is strong because Modesto uses a city-owned program and tester path.
  • This page has a real next action instead of city-blurb SEO.
FAQ

Local questions people actually ask

Does City of Modesto Cross-Connection and Backflow Control Program require annual backflow testing?

Upon installation and at least annually thereafter for protected assemblies. Modesto runs a utility-side cross-connection program and exposes a certified tester list from the official page.

Who is affected by City of Modesto Cross-Connection and Backflow Control Program backflow rules?

Modesto services with irrigation, commercial, industrial, or other cross-connection risk.

How do I submit or confirm a backflow test for City of Modesto Cross-Connection and Backflow Control Program?

Use the official utility workflow and submission methods listed on this page: Modesto backflow program. Program phone: 209-342-2246.

Where should I look for testers for City of Modesto Cross-Connection and Backflow Control Program?

Start with the governing authority's published tester list. This utility has an official approved-tester route and it should be treated as the primary source.