The type of protection required is related to the degree of hazard that exists on the property served. The type of protective device that may be required (listed in increasing level of protection) includes double check valve (DC), double check detector check assembly (DCDA), reduced pressure principle backflow prevention device (RP) and an air gap separation (AG). The customer may choose a higher level of protection than required by the district. The minimum types required to protect the district’s water system are given in Table 11-1 and are in accordance with Title 17 of the California Code of Regulations.

Situations not covered in Table 11-1 shall be evaluated on a case-by-case basis and the appropriate cross connection protection device shall be determined by the district and/or public health agency. (Ord. 1399.16 § 11-2, 2023)