Backflow Testing

Backflow assemblies require annual testing by a qualified backflow tester. The list below contains the names of backflow testers who are certified through the Oregon Health Authority, Drinking Water Program, and maintain a business license with the City of Grants Pass. 
If you have any questions concerning backflow requirements or backflow testing, please contact the City’s Cross Connection Control Specialist at 541-450-6115.
Single-Family Dwellings
The City of Grants Pass Residential Backflow Testing Program, established in 2004, provides for the automatic annual testing and repair of backflow assemblies. Each year from March 1 through November 15, the residential backflow program tester performs the annual test. Repairs and maintenance are preformed as needed. Single-family dwellings incur an additional two dollars per month charge on their water bill to pay for this service. You do not need to contact the backflow tester unless your backflow assembly is not readily accessible.

The City of Grants Pass contracts with Southern Oregon Backflow Services for residential backflow testing.
Multi-family, Commercial & Industrial Customers
The City of Grants Pass provides a yearly reminder letter with a list of the backflow assemblies which are due for testing and the following list of backflow testers. Customers are given 30 days to have their assemblies tested. The backflow tester is required to provide the city with the completed test reports.

List of Backflow Assembly Testers
The following list is for information only and does not represent an endorsement of any company or individual. This list is current as of March 14, 2016.
If you'd like to see the full list of Certified Backflow Assembly Testers for Oregon go to:
  • Alan Ehrenberg
    Formerly A&A Plumbing
    233 Moss Lane
    Grants Pass, OR 97527
    Ph: 541-955-5178
    Certification# 1064
  • Philip Sander / Cynthia Sander
    (2016 Single Family Residential Backflow Testing contract)
    Sander Family Enterprises
    934 NW Cooke Ave.
    Grants Pass, OR 97526
    Ph: 541-472-0280
    Certification# 3087, 5639
  • Eric Schaafsma
    Precision Backflow Testing
    964 SE M St.
    Grants Pass, OR 97526
    Ph: 541-476-0733
    Certification# 3759

  • Scott Bradley
    Scott Bradley Backflow Testing
    P.O. Box 313
    Medford OR 97501
    Ph: 541-601-2259
    Certification# 3402
  • Jeramy Gordon
    Omlid & Swinney Fire Sprinkler systems
    157 S. 47th St.
    Springfield, OR 97478
    Ph: 541-741-1775
    Certification# 4315
  • Mark Jamieson
    Rogue Valley Backflow Service
    1151 Reiten Dr.
    Ashland, OR 97520
    Ph: 541-482-9464
    Certification# 3741