(A) All backflow prevention assemblies shall be installed in accordance with manufacturer's installation instructions, on each consumer's water system at or near the property line, but in all cases, before the first branch line leading off the service line wherever the following conditions exist:
(1) In the case of premises having an auxiliary water supply that is not, or may not, be of safe bacteriological or chemical quality and which is not acceptable as an additional source by the State of North Carolina, the public water system shall be protected against backflow from the premises by installing an approved backflow prevention assembly in the service line commensurate with the degree of hazard.
(2) In the case of premises on which any industrial fluid or any other objectionable substance is handled in such a manner as to create an actual or potential hazard to the public water system, the public system shall be protected against backflow from the premises by installing an approved backflow prevention assembly in the service line commensurate with the degree of hazard. This shall include the handling of process waters and waters originating from the water purveyor's system that have been subject to deterioration in quality.
(3) In the case of premises having internal cross-connections that can not be permanently corrected or protected against or intricate plumbing and piping arrangements or where entry to all portions of the premises is not readily accessible for inspection purposes, making it impracticable or impossible to ascertain whether or not dangerous cross-connections exits, the public water system shall be protected against backflow from the premises by installing an approved backflow prevention assembly in the service line commensurate with the degree of hazard.
(B) All new construction plans and specifications, when required by the State Building Code and the State Department of Environment and Natural Resources, shall be made available to the town's Building Inspector 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 consumer. All reduced pressure principle assemblies and double check valve assemblies shall be installed above ground in a protective enclosure. 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. Double check valve assemblies may be installed in a vertical position with prior approval from the Department provided the flow of water is in an upward direction. Pit and/or below grade installations are prohibited.
(D) The installation of a backflow prevention assembly which is not approved must be replaced with an approved backflow prevention assembly.
(E) 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 Department within 15 days after a reduced pressure principle backflow preventer (double check valve assembly (DCVA), pressure vacuum breaker (PVB), double check detector assembly (DCDA), 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, plumbing company represented, plumber's license number, and project permit number.
(6) Type of assembly, size of assembly.
(7) Manufacturer, model number, serial number.
(8) Test results/report.
(F) 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.
(G) Following installation, all reduced pressure principle backflow preventers (RP), double check valve assemblies (DCVA), pressure vacuum breakers (PVB), double check detector assemblies (DCDA), or reduced pressure principle detector assemblies (RPDA) are required to be tested by a certified backflow prevention assembly tester within ten days.
(Res. passed 11-20-03) Penalty, see § 50.99