Backflow Prevention Information

As your water supplier, we take great care to ensure that the water we provide to our customers is high in quality.

You as a customer, also play a role in preserving that quality. As the owner of a home, we'd like you to understand how contamination can originate through an individual plumbing system, and what you can do to help ensure that it doesn't happen in your home.

Backflow Assembly

What is a Backflow?

Backflow is the reversal of the normal direction of flow which results in undesirable materials entering the water system. Backflow can occur whenever the water pressure is reduced enough to cause a vacuum or "backsiphonage". The same principle is involved when you drink through a soda straw. Some situations which may cause this include: water main breaks or shut downs for repairs, hydrants opened for flushing or firefighting, undersized piping in your residence. Another form of backflow, called "backpressure", occurs when the downstream pressure becomes greater than the supply pressure. Excessive backpressures can be caused by pumps, boilers and heat exchangers.

A cross-connection is any unprotected actual or potential connection or structural arrangement between a public or private potable water system, and any other source or system through which it is possible to introduce into any part of the potable system any used water, industral fliuids, gas, or substance other than the intended potable water with which the potable system is supplied. Cross-connections are prohibited by state and local plumbing codes. Our desire is to develop a comprehensive program for the elimination and prevention of cross connection in industrial, commercial and public facilities. To address this, we are trying to make every effort to educate and inform all residents connected to our water system of the dangers and what they can do to prevent backflow and cross-connections.

Sprinkler System

Sprinkler Systems

Much of the focus of our residential backflow prevention program is on underground sprinkler systems. Water in irrigation pipes can become contaminated with garden chemicals and microorganisms. Because of this, landscape irrigation systems always require installation of backflow prevention assemblies. State Health rules stipulate that all of these assemblies, except Automatic Vacuum Breakers, are to be tested each year.

Backflow Assembly Testing

To ensure backflow prevention assemblies are operating properly, the City of Central Point tests all backflow prevention assemblies on an annual basis. $1.00 per month is added to the water bills of all Central Point residents to cover the cost of this program. If you feel that there is a need to have your assembly tested more often than once per year please contact the Cross-Connection Control  Program Coordinator at 541-664-3321 ext 422. There is no longer any need for residents to schedule annual testing of their assemblies.

Backflow questions can be directed to 541-664-3321 ext 422