Cross Connection/ Backflow Program

The Water Division operates and maintains the City's cross connection control program (backflow prevention), which consists of both commercial and residential backflow prevention. This program ensures that our water system does not become contaminated through commercial users, which include but are not limited to hospitals, medical clinics, metal plating shops, and dry cleaners. Our fastest growing water users are our residential customers with uses like 1) in-ground irrigation system; (2) active well; (3) in-ground swimming pool/spa; (4) ornamental fountain; (5) fish pond; or (6) solar heating system, which are or can be directly connected to the City's water system. The backflow program ensures that the City is in compliance with all City and state regulations.

The City currently has 2,118 commercial devices, which are tested on an annual basis. We are also currently testing 2,912 residential devices, which are required to be tested between March 1st and June 1st each year. A passing test report must be submitted by you or your testing agency to City of Tualatin Operations, Attn: E. Castro, 18880 SW Martinazzi Avenue, Tualatin, OR. 97062.

We appreciate your ongoing cooperation regarding this program. By working together, we can be sure our drinking water remains safe to drink and free of contaminants.  If you have any questions, please contact Ernie Castro at 503-691-3098 or ecastro@tualatin.gov (preferred).

The State of Oregon Specialty Plumbing Code (OPSC Section 103.1.1), requires a pluming permit to be obtained for a backflow device installation or disconnection.  To obtain a permit please contact the Building Division at 503-691-3044 and they will be happy to assist you.
 

The City of Tualatin is unable to recommend a certified tester for you, but you can access the State of Oregon Certified Tester's list here.