Backflow Prevention Device Annual Test Program

The State Department of Health and Environment regulations requires the City of Patterson Cross Connection Control Program to test all backflow prevention devices installed on the City Water Infrastructure.  The City tests its own backflow and those private devices with authorization from property owners.

Periodic Test and Maintenance letters will be sent out to all property owners and responsible parties in January of each year.  Parties are able to respond using the response form available here.  The response deadline is noted on the letter and the form will only be available until the deadline.