(A) All backflow prevention assemblies shall be installed in accordance with the specifications furnished by the city and/or the manufacturer’s installation instructions and/or in the latest edition of the North Carolina Building Code, whichever is most restrictive.
(B) All new construction plans and specifications, when required by the North Carolina Building Code and the North Carolina Department of Environmental Quality, shall be made available to the city for review and approval, and to determine the degree of hazard.
(C) Ownership, testing, and maintenance of the assembly shall be the responsibility of the customer.
(D) All double check valve assemblies must be installed in drainable pits wherever below ground installation is necessary.
(E) Reduced pressure principle assemblies must be installed in a horizontal position and in a location in which no portion of the assembly can become submerged in any substance under any circumstances (pit and/or below grade installations are prohibited). Double check valve assemblies may be installed in a vertical position with prior approval from the city, provided the flow of water is in an upward direction.
(F) Any installed unapproved backflow prevention assembly must be replaced with an approved backflow prevention assembly.
(G) The installer is responsible to make sure a backflow prevention assembly is working properly upon installation and is required to furnish the following information to the city within 15 days after a reduced pressure principle backflow preventer (RP), double check-detector assembly (DCDA), pressure vacuum breaker (PVB), or reduced pressure principle detector assembly (RPDA) is installed:
(1) Service address where assembly is located;
(2) Owner (and address, if different from service address);
(3) Description of assembly’s location;
(4) Date of installation;
(5) Installer (include name, certification number, and project permit number);
(6) Type of assembly, size of assembly;
(7) Manufacturer, model number, serial number; and
(8) Test results/reports.
(H) When it is not possible to interrupt water service, provisions shall be made for a parallel installation of backflow prevention assemblies. The city will not accept an unprotected bypass around a backflow preventer when the assembly is in need of testing, repair, or replacement.
(I) The consumer shall, upon notification, install the appropriate containment assembly not to exceed the following time frame:
(1) Health hazard - 60 days.
(2) Non-health hazard - 90 days.
(J) Following installation, all RP, DCVA, PVB, DCDA, and RPDA assemblies are required to be tested by a certified backflow prevention assembly tester within ten days.
(Ord. O-10-24, passed 8-1-2024)