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The Town of Clayton’s Cross Connection Control/Backflow Protection Program is responsible for ensuring the drinking water provided by the Town of Clayton remains safe throughout our distribution system. A cross connection is where our drinking water system’s piping connects to various plumbing fixtures or equipment (like a dishwashers, irrigation, or heating and cooling systems) in businesses or homes. Backflow is when potentially contaminated water from a customer’s building or equipment accidentally reverses or siphons back into the Town’s water system. Failing to adequately prevent or control backflow events could have significant negative health and economic impacts, with one of the most well-known being in Corpus Christi, Texas in December 2016.

Most modern plumbing fixtures generally have built-in backflow protection, but many commercial and industrial properties are required to install backflow protection devices on the customer’s side of the meter.  These devices MUST be tested annually by a certified tester and reported back to the Town of Clayton. 

Starting immediately, the Town of Clayton will expect annual backflow testing results within the assigned month of testing, with only a 5-day grace period.  If results are not received in this time frame, customers will be issued a notice of violation. Non-compliance will result in fines.

In many cases, testing is being completed, but results are not being shared with the Town in a timely manner. Testers who are found responsible for these delays risk being removed from our published list of certified professionals.   

We understand submitting test results is a shared responsibility with customers and the certified tester, that’s why we strongly encourage those parties to work together to ensure results are submitted promptly.

You can easily submit backflow testing results via email at, fax them to 919-553-1541, or come into our Public Works Operations Center at the corner of NC 42W and Guy Rd., Monday through Friday from 8 a.m. to 5 p.m.

If you have any questions about our Cross Connection Control/Backflow Program, please email at

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