If, in the judgment of the Director of Service, the integrity of the public water system is, or can be, endangered by backflow from an actual or potential cross-connection within the plumbing system of a water consumer, the Director may order the installation of an approved backflow prevention method or device consisting of either an air-gap, double sanitary check valve assembly, vacuum breaker, reduced pressure principle backflow preventer, or any combination thereof, at the water service connection to the premises.
The water consumer shall install, at his own expense, such approved device or method, in a manner approved by the Division of Building and Zoning (with inspections as required), and failure, refusal or inability to install the device or method immediately (within thirty days) shall constitute grounds for discontinuing water service to the premises until such device or method has been installed and approved by the Director.
The use of the approved backflow preventer at the water service connection does not in any way affect or eliminate the need for individual fixture devices or air-gaps as required by the Ohio Basic Building Code.
As a general guideline, an approved backflow prevention device shall be required on each water service branch serving premises where the following conditions exist:
(a) Premises having an auxiliary water supply, unless such auxiliary supply is accepted as an additional source by the Director or the Division of Building and Zoning and approved by the Ohio Department of Health;
(b) Premises on which any substance is handled in such a fashion as to create an actual or potential hazard to the public potable water system, including premises having sources or systems containing process fluids or waters originating from the public potable water system which are no longer under the sanitary control of the water purveyor;
(c) Premises where, because of security requirements or other prohibitions or restrictions, it is impossible to make a complete cross-connection survey, or premises having a repeated history of cross-connections being established or re-established;
(d) Premises having internal cross-connections that, in the judgment of the Director or the Division of Building and Zoning, are not connectable, or premises having intricate plumbing arrangements that make it impractical to determine whether or not cross-connections exist.
All necessary permits shall be obtained from the political subdivision having jurisdiction.
(Ord. 75-3. Passed 4-1-75.)