The City shall ensure that cross-connections between the distribution system and a consumer’s water system be eliminated or controlled by the installation of an approved backflow prevention assembly or device commensurate with the degree of hazard.

Depending on the degree of hazard, and the required backflow prevention assembly or device, the City may, at its discretion, rely on in-premise protection as adequately protecting the public water system. Where the degree of hazard requires more stringent isolation, the City may require both premise and in-premise isolation.