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Patterson annual backflow testing

Patterson runs an annual program tied to January letters and an approved outside tester workflow.

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City: Patterson Utility: City of Patterson Backflow Prevention Device Annual Test Program Cadence: Annual Last verified: 2026-06-29
Local answer

What to check for Patterson

Patterson runs an annual program tied to January letters and an approved outside tester workflow.

  • Due basis: Patterson mails periodic test and maintenance letters in January and expects property owners to notify the city of their selected approved outside tester. If the owner does not respond, the city may perform the testing itself.
  • Notice or device clue: Look for the utility name, service address, assembly serial number, account or notice ID, and due date.
  • Who is affected: Property owners and responsible parties whose backflow prevention devices are installed on the City of Patterson water infrastructure.
  • Acceptance rule: Report acceptance depends on the governing tester route and the utility's submission method; confirm status before scheduling.
  • Program phone: 209-895-8063
Notice-to-closeout map

Source-backed procedure before the record is treated as closed

This is the working path for Patterson notices: match the authority, confirm the tester gate, use the accepted submission route, and keep proof that the report was accepted.

Authority City of Patterson Backflow Prevention Device Annual Test Program
Notice trigger Look for the utility name, service address, assembly serial number, account or notice ID, and due date.
Tester gate View the official tester list
Submission route Patterson annual test program (program page)
Proof to keep Report acceptance depends on the governing tester route and the utility's submission method; confirm status before scheduling.
Failure branch Open failed-test workflow before treating repair, retest, or resubmission as complete.
Local signals

Signals that matter before you act

  • The city mails periodic test and maintenance letters in January.
  • Owners are expected to notify the city of the approved outside tester they will use.
  • Patterson publishes the approved outside tester table directly on the public page.
Workflow

Patterson workflow order

  1. Watch for the city's annual letter or confirm the device is on the annual program.
  2. Choose one of Patterson's approved outside testers and notify the city.
  3. Complete the annual test so the city does not have to step in under the program.
City FAQ

Patterson questions before you act

Does Patterson require annual backflow testing?

Annual Patterson mails periodic test and maintenance letters in January and expects property owners to notify the city of their selected approved outside tester. If the owner does not respond, the city may perform the testing itself.

What should I check on an annual notice for Patterson?

Check the due date, service address, device record, accepted tester route, and submission method before scheduling.

Who controls the rule for Patterson?

Patterson search demand is routed to City of Patterson Backflow Prevention Device Annual Test Program. Property owners and responsible parties whose backflow prevention devices are installed on the City of Patterson water infrastructure.

What costs or fees should I expect for Patterson?

Testing is market-priced, but Patterson's approved-list structure shapes the usable quote set. Repair and retest pricing depends on the assembly and whether the city requires a corrected test under the annual program. The commercial value is in the official-list funnel and annual-notice urgency, not a public fee schedule.