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CROSS CONNECTION
A cross-connection is any connection in a water system that could allow, via backflow, unsafe and unclean (contaminated) water to come into contact with safe and clean water. In past national cases of cross-connection contamination, serious illness and even deaths have occurred.
- Clean water versus contaminated water.
The most common cross-connection is in-ground irrigation systems. Swimming pools, hot tubs, and any system that connects a hazardous chemical to the public water supply are also cross-connections.
For more information on cross-connection, view the American Water Works Association pamphlet.
All cross-connections require protection. This is called cross-connection control. By law (WAC 246-290-490), Sun Cove must be in compliance with Cross Connection Control regulations. To comply with these regulations, all members with cross-connections are required to have a backflow prevention device installed on their water line and have it tested yearly for functionality.
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These devices are called backflow assemblies. There are different types of backflow assemblies depending on the cross-connection type. To learn more about backflow assemblies, view the American Water Works Association pamphlet.
To determine if a cross-connection exists, beginning in 2015, Sun Cove staff sends out a Cross-Connection Control survey every 5 years to all members connected to the Sun Cove water system. This survey also determines what type of backflow assembly is required.
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If you have a cross-connection and don't have a backflow assembly installed, a landscaper or plumber can install one for you. If you have a backflow assembly installed, Sun Cove has a Backflow Device Test Program. Information regarding this program is sent out every Spring.