Backflow Prevention Devices

Plumbing Code and state regulations require that backflow preventers be tested annually and/or when a backflow preventer is relocated or re-installed every season. The water customer must contract with a licensed tester to perform the required annual tests and any necessary repairs. Most plumbing contractors are certified to test backflow preventers. Note there are costs associated with testing and maintaining backflow devices.

Federal, state and local regulations require every municipal water supplier to develop, implement, and maintain a comprehensive Cross Connection Control (CCC) program designed to safeguard the public water supply. Cross connections are sometimes protected by a valve called a backflow preventer. Backflow preventers are the property of the water customer and the responsibility lies with the customer for required annual testing and maintenance.

Residential backflow preventers may be found on lawn irrigation systems, wet fire protection systems, hot water heating (boiler) systems, swimming pool fills, water features, etc. Backflow preventers may also be found or required if there is another water source on the site such as a well, pond, river, etc. 

The Village asks for your cooperation with our program, its enforcement, and any requests for information that come from the Village. The Village's CCC program is administered by the Public Works Department.  Questions may be directed to Wendy Aikens at: or (708) 352-2922.