What is a cross connection?
A cross connection is a connection between a potable water supply and a non-potable source. At a cross connection, it is possible for contaminants to enter drinking water.
What is a backflow?
A backflow (backpressure or back siphonage) is a reversal of the flow of non-potable water or other substances through a cross connection and into the piping of a public water system. A sudden change in water pressure in the pipes could cause such a reversal. The reversed water flow could then exert suction that draws contaminated water into the drinking water.
If I’ve received a notice about an upcoming cross connection control compliance inspection, how should I prepare?
Prior to County inspection, you should have the backflow devices on your property tested by a Virginia-licensed backflow device professional. Complete the Cross Connection Control Report, which requires the backflow device professional’s signature and license number. Retain a copy of the test results to give to the County inspector. Once testing is complete, follow the instructions on the notice to schedule a County inspection.
What if an inspector cannot complete an inspection or confirm compliance during the initial inspection?
The inspector will reject the inspection and the system will automatically schedule the same inspector two weeks later for the same inspection Prior to County inspection, you should have the backflow devices on your property tested by a Virginia-licensed backflow device professional. Complete the Cross Connection Control Report, which requires the backflow device professional’s signature and license number. Retain a copy of the test results to give to the County inspector. Once testing is complete, follow the instructions on the notice to schedule a County inspection. The County must receive the completed report within 14 days of the original notice.