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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: 2026-06-29 Due basis: Modesto runs a utility-side cross-connection program and exposes a certified tester list from the official page.
Back to utility requirements Open the official program page Local follow-up options
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.
After the official step

Need local follow-up?

Use the governing authority's official tester list after you confirm the rule, due basis, and submission method for this exact topic.

View the official tester list Request local help

If you still need help after checking the official workflow, you can submit a request for local follow-up.

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.