A backflow or backsiphonage prevention device installed on a water supply system must meet standards for construction, installation, maintenance, inspection, and testing for that specific application and type of device in accordance with WAC 246-290-490 and 51-56-0600.
Wash. Admin. Code § 246-215-05220
Statutory Authority: RCW 43.20.050 and 43.20.145. 13-03-109, § 246-215-05220, filed 1/17/13, effective 5/1/13.