municipal utility

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

Modesto is credible because the city program and certified tester path live on the same official utility surface.

Use this page to confirm the governing rule, then open the focused page that matches your exact situation.

Testing cadence: Upon installation and at least annually thereafter for protected assemblies Last verified: 2026-06-29 Verification code: TL Freshness window: 45 days
Next-step paths

Start with the page that matches your situation

This page is the rule hub. Use it to confirm the governing utility workflow, then open the focused page that matches the actual situation on site.

Routine notice

Annual testing

Open the annual page when the utility notice is about routine testing, timing, and accepted submission methods.

Urgent status

Failed test

Open the failed-test page when the device already failed and you need the repair, retest, and reporting order.

System-specific

Irrigation

Open the irrigation page when the question is tied to sprinkler systems, reclaimed water, or landscape devices.

System-specific

Fire line

Open the fire-line page when the backflow assembly serves fire protection equipment or a managed commercial site.

Provider route

View the official tester list

Use the published tester route after you confirm the rule, due basis, and submission path on this utility page.

Testing cadence

Annual or event-based timing

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

  • 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.
Penalty exposure

Non-compliance penalties

Missing the city-recognized tester path can leave the assembly outside Modesto's accepted compliance workflow.

  • Modesto exposes a real certified tester list.
  • The utility page is clearly about distribution-system protection.
  • This page is strongest for protected-service demand.
Compliance workflow

Official workflow

Every focused page on this utility still runs through this authority sequence. Confirm the rule here before you branch into repair, testing, or provider routing.

  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.
Covered property types

Where the rule applies

  • Commercial properties
  • Industrial properties
  • Irrigation systems
  • Multifamily properties
Covered device types

Devices in scope

  • Backflow prevention assemblies
  • Containment assemblies
  • Irrigation backflow devices
Residential notes

Residential notes

  • 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.

After the rule is clear

Need a tester or local help?

Start with the governing authority's published tester list. Use provider help only after the official rule, due basis, and submission path are clear.

Market cost analysis

Local cost band

Typical testing and repair pricing used to frame next-action decisions in the metro around this utility.

The strongest signal is the official utility workflow, not a posted retail fee.

Provider browse layer

Public provider direction

Provider routing stays clearly labeled below the official workflow. This block exists to frame public provider discovery without implying authority status.

Backflow technician inspecting an industrial assembly
Local testing profiles Use provider profiles and metro pages only after confirming the utility workflow and list rules above.
Pressure vacuum breaker on an exterior wall
Public directory stays separate Provider help is reviewed separately from the official utility workflow and never replaces the authority guidance above.