§ 10.12.05. Protective devices.

The type of protective device required shall depend on the degree of hazard as described in AWWA manual M-14 or as described below where more than one type of protection is possible, the actual method utilized shall be at the discretion of the water purveyor and/or superintendent after physical inspection of the hazard.

A.

In the case of any premises where there is an auxiliary water supply, there shall be no physical connection between said auxiliary water supply and the consumer's water system, which is served by the public water supply system. Where such connections are found, disconnections shall be accomplished and the public water system shall be protected against the possibility of future connection by an approved reduced-pressure-principle backflow prevention device at the service connection.

B.

In the case of any premises where there is water or a substance that would be objectionable but not hazardous to health, if introduced into the public water system, the public water system shall be protect by an approved double-check valve assembly.

C.

In the case of any premises where there is any material dangerous to health which is handled in such a fashion as to create an actual or potential hazard to the public water system, the public water system shall be protected by an approved reduced pressure principle backflow prevention device.

D.

In the case of any premises where, because of security requirements or other prohibitions or restrictions, it is impossible or impractical to make a complete in-plant cross-connection survey, the public water system shall be protected by the installation of an approved reduced-pressure-principle backflow prevention device at the service connection.

( Ord. No. 97-20, § 1.5 )