The water supplier responsibility begins at the source of supply and includes adequate treatment facilities, public water distribution system and service piping, and ends at the point of delivery to the consumer’s water system. In addition, the water purveyor should exercise reasonable vigilance to ensure that the consumer has taken the proper steps to protect the public water system. To ensure that the proper precautions are taken, the purveyor shall determine the degree of hazard to the public water system following guidelines developed by the Environmental Management Board. When it is determined that a backflow prevention device is required for the protection of the public water system, the consumer should be required to install an approved reduced pressure backflow prevention device or an approved double check valve assembly at each service connection at his or her expense, to properly repair and maintain such device or devices, and to keep adequate records of each test and subsequent maintenance and repair. The water purveyor is directly responsible for the purity and quality of public water supply.
(Ord. 86-4, passed 12-1-1986)