BCDES is responsible for protecting and maintaining the high quality of the public water supply. However, we cannot control water quality after the water enters a customer’s system. If water flows backward from a customer’s system into the BCDES distribution system, it creates a risk to the public water supply.

Backflow can occur two ways. A sudden drop in water pressure in the public system can create a suction effect, drawing contaminants into the water supply. Backflow can also occur when the pressure in a private system is greater than that in the public system, reversing the flow direction.

To prevent backflow and possible contamination, BCDES requires a reduced pressure backflow prevention assembly on each water line entering a non-residential, commercial, or industrial facility. We also require reduced pressure assemblies in residential buildings of more than three units. Double-check backflow prevention assemblies are required on fire lines.

BCDES and the Ohio Environmental Protection Agency require testing of backflow prevention devices when they are installed and every 12 months thereafter. The water customer is responsible for having these devices installed, tested and repaired by a plumber with backflow certification. Water service may be discontinued if backflow devices are not tested in a timely manner.

There is a $25.00 administrative fee for each Backflow Test Report returned by the due date. The fee for a late test report is $60.00. For more information about the backflow program, please see our Backflow Prevention Brochure or contact the BCDES backflow prevention coordinator at (513) 887-3917.