The water utility's Cross Connection Control Program: Handbook of Policies and Procedures is hereby incorporated into this subchapter by reference. It is the primary responsibility of the water purveyor and/or the Water and Sewer Committee to evaluate the hazards inherent in supplying a consumer's water system (i.e., determine whether solid, liquid or gaseous pollutants or contaminants are, or may be, handled on the consumer's premise in such a manner as to possibly contaminate the public water system). When a hazard or potential hazard to the public water system is found on the consumer's premise, the consumer shall be required to install an approved backflow prevention assembly (BFP), or an air gap, at each public water service connection to the premise in accordance with this subchapter's requirements. The type of BFP shall depend on the degree of hazard involved. The degree of hazard shall be as described in AWWA M-14 manual or as described below.
(A) In the case of any premise where there is an auxiliary water supply, connected to the plumbing system, the public water system shall be protected from the possibility of backflow by a reduced-pressure principle backflow prevention assembly (RP) at the service connection.
(B) In the case of any premise where substances are handled that are objectionable, but not hazardous to human health, and the likelihood exists of it being introduced into the public water system by virtue of a backflow occurrence, the public water system shall be protected by an air gap or an approved double check valve assembly (DC).
(C) In the case of any premise where there is any material, hazardous to human health, which is handled in such a fashion as to create an actual or potential threat to the public water system by virtue of a backflow occurrence, the public water system shall be protected by an air gap or an approved reduced-pressure principle backflow prevention assembly (RP).
(D) In case of any premise where there are unprotected cross connections, either actual or potential, the public water system shall be protected by an approved reduced-pressure principle backflow prevention assembly (RP) or an air gap at the service connection.
(E) In the case of any premise where, because of security requirements or other prohibitions or restrictions, it is impossible or impractical to make a complete cross connection survey, the public water system shall be protected by the installation of an approved reduced-pressure principle backflow prevention assembly (RP) or an air gap at the service connection.
(Ord. 2014-11-484, passed 11-4-14)