(A) Wherever a cross-connection hazard, as specified by division (C) below, is designated:
(1) An air gap shall be constructed or a reduced pressure principle backflow preventer shall be installed, in accordance with § 51.64(A), on the customer service line for:
(a) Any new facility;
(b) Any modified customer service line; or
(c) Any existing facility where a higher capacity meter is installed.
(2) Neither an air gap nor a reduced pressure principle backflow preventer shall be required to be incorporated into customer service lines that both are utilized solely for fire suppression and are fitted with an audible alarm that will activate when water is detected to be flowing in the customer service line.
(B) Customers who have a cross-connection that has resulted in a contaminant being introduced into a public water system or a customer water system:
(1) Shall immediately construct an air gap or install a reduced pressure principle backflow preventer on the customer service line, in accordance with § 51.64(A); or
(2) Is exempt from the requirements of division (B)(1) above because the affected customer service line is both utilized solely for fire suppression and is fitted with an audible alarm that will activate when water is detected to be flowing in the line.
(C) The following customer facilities are designated cross-connection hazards:
(1) Aircraft and missile manufacturing plants;
(2) Automotive plants, including those plants that manufacture motorcycles, automobiles, trucks, recreational vehicles, and construction and agricultural equipment;
(3) Beverage bottling plants, including dairies and breweries;
(4) Canneries, packing houses, and reduction plants;
(5) Car washes;
(6) Chemical, biological, and radiological laboratories, including those in high schools, trade schools, colleges, universities, and research institutions;
(7) Hospitals, clinics, medical buildings, autopsy facilities, morgues, other medical facilities, and mortuaries;
(8) Metal and plastic manufacturing, fabricating, cleaning, plating, and processing facilities;
(9) Plants manufacturing paper and paper products;
(10) Plants manufacturing, refining, compounding, or processing fertilizer, film, herbicides, natural or synthetic rubber, pesticides, petroleum or petroleum products, pharmaceuticals, radiological materials, or any chemical that could be a contaminant to the public water supply;
(11) Commercial facilities that use herbicides, pesticides, fertilizers, or any chemical that could be a contaminant to the public water supply;
(12) Plants processing, blending, or refining animal, vegetable, or mineral oils;
(13) Commercial laundries and dye works, excluding coin-operated laundromats;
(14) Sewage, stormwater, and industrial waste treatment plants and pumping stations;
(15) Waterfront facilities, including piers, docks, marinas, and shipyards;
(16) Industrial facilities that recycle water; and
(17) Restricted or classified facilities (federal government defense or military installations), or other facilities closed to the supplier of water or to the Commissioner.
(D) Customer facilities not designated as a cross-connection hazard by division (C) above may be designated a cross-connection hazard by written notification from the Commissioner to the customer and to the customer’s public water system. The notice shall specify the nature of the customer activity that necessitates designation of the customer’s facility as a cross-connection hazard and the date by which the customer shall install a cross-connection control device, in accordance with § 51.64(A), on the customer service line to the facility so designated.
(E) The Commissioner may issue a letter exempting a customer from the requirements of division (A) above if the customer can show, to the satisfaction of the Commissioner, that the activities taking place at the customer’s facility and the materials used in connection with these activities or stored on the premises cannot endanger the health of customers of the public water system should backflow occur. An exemption shall remain valid for no more than three years from the date of issuance. If the Commissioner finds that the customer facility has become a cross-connection hazard, the Commissioner will void the exemption and so notify the customer.
(Ord. 2006-10, passed 9-19-2006)