(A) All new commercial and industrial non-fire water service lines, and new underground connections for irrigation systems with facilities for introduction of chemical additives or with equipment creating back pressure, must have an approved air gap separation or an approved reduced pressure principle backflow prevention assembly installed in the line, in accordance with § 51.072.
(B) New and existing irrigation systems without facilities for injection of pesticides, herbicides, or other chemicals must have an approved double check valve assembly installed in accordance with § 51.072 and with other provisions of this subchapter. The backflow assembly may be installed between the customer service line and the irrigation system.
(C) New fire protection systems using chemical additives must have an approved air gap separation or an approved reduced-pressure principle backflow prevention assembly installed in the line in accordance with § 51.072. New fire protection lines not using chemical additives must have an approved double-check valve assembly installed in the service line in accordance with § 51.072.
(D) Major modifications or major additions to water systems will be considered to be new service lines or systems for purposes of this section.
(Ord. 357, passed 4-1-2006)