Cross-Connection Control Program
Cross-Connection Control
Cross-connection is any actual or potential physical connection between a potable water line and any pipe, vessel, or machine containing a non-potable fluid or has the possibility of containing a non-potable fluid, solid or gas, such that it is possible for the non-potable fluid, solid or gas to enter the water supply is connected, directly or indirectly, with any non-potable or unapproved water supply system, sewer, drain, conduit, pool, storage reservoir, plumbing fixture, or any other device which contains, or may contain, contaminated water, liquid, gases, sewage or other waste, of unknown or unsafe quality which may be capable of imparting contamination to the potable water supply as a result of backflow. Bypass arrangements, jumper connections, removable sections, swivel or change-over devices, and other temporary, permanent or potential connections through which, or because of which, backflow could occur, are considered to be cross connections.
Approved Backflow Testers
FAQs
Why do I have to have a backflow prevention installed?
Backflow preventers are installed in accordance to WAC 246-290-490, in order to protect public drinking water from potential contamination.
Why must my backflow assembly be tested annually?
Backflow preventers must be tested annually in accordance to WAC 246-290-490, to ensure the public drinking water remains safe from potential contamination.
What is backflow?
Backflow is undesirable reversal of water flow in a plumbing system, where non-potable or contaminated water flows backward into the clean water supply due to pressure changes. This occurs through 2 pressure events, back-pressure or back-siphonage and poses serious health risks to the community connected to the public water supply.