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Backflow devices are required at or near the point of service from the public potable water system to any location:
(a) Having an auxiliary supply, including a groundwater well;
(b) Where chemicals are manufactured or processed or are used within the premises that could be potentially harmful;
(c) Where hospitals or doctors' offices, either for humans or animals, with medical and surgical facilities are maintained;
(d) Where oils and gasses are produced or developed;
(e) Where there is a mortuary;
(f) Where there is food processing;
(g) Where there is a landscape irrigation system;
(h) Where natural and synthetic rubber, rubber goods and tires are manufactured;
(i) Where a brewery is operated;
(j) Where the use within the building might impart an objectionable taste, odor or color;
(k) Where there is a wastewater treatment facility or pumping station;
(l) Where there is need for a backflow prevention device for protection of the public potable system.
Backflow prevention devices fall into the following categories: Reduced pressure principle device (RP), double check detector valve, air gap, pressure vacuum breaker, and atmospheric vacuum breaker. The specific device required for a particular location shall be per the Water Design and Construction Standards or as required by the Cross Connection Control Officer.
(Ord. 1516-NS, eff. June 5, 2009)