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Cross Connections + Backflow

The City of Irving, in cooperation with the Texas Commission on Environmental Quality (TCEQ) has established a cross connection control program to protect your drinking water from harmful contaminants.



Backflow Prevention Assembly Testing

Annual Backflow Assembly Testing Requirements

Irving's Ordinance #8140 mandates that all customers with backflow prevention assemblies must have their assemblies tested annually. Regular testing helps protect the community's drinking water supply.

  1. Approved Backflow Testers

Backflow Tester Information

Important Update for Backflow Testers

Physical copies of test reports or tester registration applications/renewals are no longer accepted. All test reports must be submitted through the online backflow reporting system, Envirotrax. The fee for submitting test reports to the City of Irving is $40. There is no fee for failed test reports.


Create a Envirotrax Backflow user account here.


Register as a New Backflow Tester:

  1. Fill out the Tester Registration Form, including name, email, company name, address, phone number and the affidavit.
  2. The registration fee is $100 and must be submitted to the City of Irving either in person or via mail: 333 Valley View Lane, Irving, TX 75061. Only cash, check, or money order is accepted. Checks can be made payable to the City of Irving.
  3. Tester registration is valid for one year and must be renewed before the expiration date to ensure continued access to test report submissions.
  4. Create an online account through Envirotrax to submit backflow test reports. Quick start guide.
  5. Test kit calibration reports, BPAT licenses and other certifications must be updated in Envirotrax.

Note: Each tester must have a unique email address, as it is directly tied to the tester’s profile and cannot be shared.


Renew a Tester’s Registration:

  1. Test kit calibration reports, BPAT licenses and other certifications must be updated in Envirotrax.
  2. The registration fee is $100 and must be submitted to the City of Irving either in person or via mail: 333 Valley View Lane, Irving, TX 75061. Only cash, check, or money order is accepted. Checks can be made payable to the City of Irving.


Tester Responsibilities:

  1. A copy of the backflow test form (not just the invoice) must be provided to the customer for every test performed.
  2. In the event of a failed test, the customer must be notified that the assembly requires repair or replacement and retesting.
  3. All backflow test reports must be submitted online through Envirotrax within 10 days of the test date City Ordinance Sec. 41-22 (h). Physical copies are not required.
  4. Verification of a plumbing permit is necessary for any newly replaced or installed assembly before testing. This can be done through a physical or digital copy of the permit or by contacting the City Plumbing Inspector at (972) 721-2371 or the Backflow Specialist at (972) 721-2104.
  5. For replacement assemblies, it should be noted on the test report, including the old serial number.
  6. If an assembly appears to be the wrong type for the hazard or if there are any questions, contact the Backflow Specialist at (972) 721-2104.
  7. It is the tester’s responsibility to keep licenses, test kit calibration forms, and registration fees updated in their profile. A reminder email may be sent two weeks before the annual registration fee is due.


Important Documents and Forms

  1. Backflow Test Report Form
  2. Cross Connection Intro