DISCLAIMER: This list is provided by North Perry Avenue Water District as a service to our customers. The District does not warranty work performed by anyone on this list. This is not a complete list of certified testers who are certified to perform backflow device tests, but rather a list of testers that have provided documentation that certification is current.

For an unabbreviated list go here:http://grcc.greenriver.edu/wacertservices/bat/bat_publiclist.asp

If a tester not on this list conducts a test within District boundaries the appropriate documentation must accompany the test results to validate the Test (a copy of certification/calibration of equipment). North Perry Avenue Water District does not have any control over the charges for testing, repairs, or installation of backflow assemblies.

North Perry Avenue Water District provides this list of companies and individuals who have been licensed by the State of Washington and also from unlicensed companies and individuals for your own protection, ask to see the contractor’s license when hiring.  For futher information please call 1-800-647-0982 Department of Labor & Industries contractors office. Also check L&Is internet site at  www.lni.wa.gov   ( RCW 18.27.005  &  RCW 18.27.200 )

If your tester is not on this list, please have them call our office at 360-373-9508 during business hours so they can be added to the list.

Revised 1/24/23

Please contact Courtney Little, Cross Connection Control Specialist at our office with any questions and prior to any installation.