(A) The backflow prevention assembly protection which is required under this subchapter shall be any of the duly authorized backflow prevention assemblies listed in the Uniform Plumbing code, or as determined by the regulatory authority. Each backflow prevention assembly must have been approved by the regulatory authority or his chosen representative in conjunction with the chief plumbing inspector of the city for the use contemplated by the commercial establishment prior to installation. Failure to obtain such approval prior to installation of the backflow prevention assembly may result in the backflow prevention assembly failing to meet final approval by the regulatory authority. The regulatory authority shall determine the type and location of backflow assembly to be installed within the area serviced by the City of Ferris. The assembly will be required in each of the following circumstances, but the representative is in no way limited to the following circumstances:
(1) The nature and extent of any activity of the premises, or the materials used in connection with any activity of the premises, or materials stored on the premises, could contaminate or pollute the potable water supply.
(2) Premises having any one or more cross-connections identified or are present.
(3) Premises having any one or more cross-connections and the cross-connection(s) is protected by an atmospheric vacuum breaker device (AVB).
(4) Internal cross-connections are present that are not correctable.
(5) Intricate plumbing arrangements that are present which make it impractical to ascertain whether cross-connections exist.
(6) There is a repeated history of cross-connections being established or reestablished.
(7) There is unduly restricted entry so that inspections for cross- connections cannot be made with sufficient frequency to assure that cross-connections do not exist.
(8) Materials are being used such that, if backflow should occur, a health hazard could result.
(9) Installation of an approved backflow prevention assembly is deemed to be necessary to accomplish the purpose of these regulations in the judgment of the city.
(10) An appropriate cross-connection survey report form has not been filed with the Public Works Department upon request of the city.
(11) A fire sprinkler system that is connected to the city’s water system.
(12) A new construction if deemed necessary in the customer service inspection. The type of assembly will be commensurate with the degree of hazard as determined by the regulatory authority.
(13) When a building is constructed on commercial premises, and the end use of such building is not determined or could change, a reduced pressure principle backflow prevention assembly may be installed at the service connection that supplies water for public domestic use.
(14) Any used water return system.
(15) In the event a point-of-use assembly has not had the testing or repair done as required by this chapter, a premises isolation assembly will be required.
(16) If it is determined that additions or alterations have been made to the plumbing system without obtaining proper permits, premises isolation may be required.
(17) All multistory buildings or any building with a booster pump or elevated storage tank.
(18) Retrofitting will be required on all high hazard connections and wherever else the city deems necessary to retrofit.
(B) All backflow prevention assemblies installed after the effective date of this subchapter shall be installed in a manner designed to facilitate ease of inspection by the regulatory authority of the city or his chosen representative. Any currently installed backflow prevention assemblies which, in the opinion of the regulatory authority, are located in inaccessible locations, or where the tester is subject to physical danger shall be relocated to an approved location.
(Ord. O-16-821, passed 7-28-2016)