Find or Become an Authorized Tester

Find an Authorized Tester

Authorized OWWA accredited testers who have submitted their qualifications to Halton Region to perform the services outlined on the Authorized Functions List (Appendix A)

The service includes:

  • Completing the required survey for your property.
  • Installation of new or replacement Backflow Prevention Devices 
  • Conducting testing on Backflow Prevention Devices - at the time of installation and on an annual basis.

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Become an Authorized Tester

To become listed as an authorized OWWA accredited tester, complete the application form and submit with the following:

  • Professional Certification
  • Testers Licence from an OWWA accredited institution (in accordance with CSA B64).
  • Test Kit Calibration Certificate
  • Copy of WSIB Certificate
  • Copy of Liability Insurance

Send your application to: 

  • Attention: Aneta King
    Region of Halton
    1151 Bronte Road
    Oakville, Ontario L6M 3L1

Note: In order to be listed as an authorized OWWA accredited testers it is your responsibility to supply Halton Region with updated qualifications (test kit calibration certificates, professional certificates, etc.), prior to their expiry.

What function(s) can I perform with my qualifications?

Halton Region provides a printable version of the Authorized Functions List - Appendix A.

  1. A. Perform Cross-Connection Survey
  2. B. Install relocate or replace a backflow prevention device
  3. C. Repair Backflow Prevention Device
  4. D. Test Backflow Prevention Device
  5. E. Items A, B, C and D above in relation to fire protection systems
  6. F. Items B, C and D above in relation to lawn sprinkler systems

Functions of Backflow Prevention - Broken down by Profession
Profession Functions that can be Performed
Professional Engineer with Tester's License A., C., D., E., F.
Certified Engineering Technologist with Tester's License * A., C., D., E., F.
Licensed Master Plumber with Contractor's & Tester's License A., B., C., D., E., F.
Journeyman Plumber or Pipe Fitter with Tester's License ** A., B., C., D., E., F.
Apprentice Plumber or Pipe Fitter with Tester's License *** B., C., D., E., F.
Fire System Sprinkler Fitter Tester's License E.
Lawn Irrigation System Installer Tester's License F.

* Required to be under the direction of a professional engineer.
** Required to be employed by a licensed plumbing contractor.
*** Required to be employed by a licensed plumbing contractor and under direct supervision of a journeyman Plumber or a master Plumber.

Where can I get drawings for backflow prevention installations?

Halton Region provides a printable version of Installation Drawings - This document includes the following drawings:

  • Standard 15 x 20mm Water Meter Installation - For Residential Water Meter Installation Only
  • Standard 20mm Water Meter Installation - For Residential Water Meter Installation Only
  • Standard 25mm, 40mm and 50mm Water Meter Installation
  • Standard 75mm, 100mm, 150mm and 200mm Turbine Meter Installation
  • Meter Chamber with Backflow Preventer (Existing Meter Chamber)
  • Meter Chamber Layout for Precast 1800mm x 2400mm Manholes
  • Backflow Prevention Device (Industrial, Institutional, Commercial)
  • Meter Cabinet & Backflow Preventer 25mm - 50mm
  • Meter Cabinet & Backflow Preventer 75mm and Larger

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Disclaimer: The information on this site is for information purposes only. The Regional Municipality of Halton provides this list only as a convenience and not as an endorsement or warranty of the services, prices, or qualifications of the contractors listed thereon. The Region recommends you obtain several quotes before selecting a contractor. All contractors are independent third parties, separate and distinct from the Regional Municipality of Halton. The Regional Municipality of Halton assumes no liability for any actions taken in reliance on the information contained on this site.