(A) The following uses shall be classified as a severe degree of hazard:
(1) Hazardous uses include, but are not limited to:
(a) Residential:
1. Private wells or other private water supply;
2. Irrigation systems;
3. Water systems or hose connections with booster pumps.
(b) Commercial and industrial:
1. Pumps and tanks handling sewage, radioactive, lethal, or toxic substances;
2. Boiler and steam connections;
3. Sewer waste lines;
4. Low inlets to receptacles containing toxic substances;
5. Coils or jackets used as heat exchangers;
6. Flush valve toilets without vacuum breaks;
7. Bacterial and viral materials;
8. Wells or other water supply;
9. Irrigation systems;
10. Water systems or hose connections with booster pumps;
11. Carbonation equipment;
(2) Any location at which the nature or mode of operations within a premises are such that frequent alterations are made to the plumbing or at which there is a likelihood in the determination of the Cross Connection Coordinator that protective measures may be subverted, altered, or disconnected.
(3) Any facility which contains, but is not limited to:
(a) Residential:
1. Lawn sprinkler system with chemical injector or booster pump;
2. Connection to an unapproved water system or unapproved auxiliary water supply;
3. Swimming pool;
4. Those fire sprinkler systems equipped with facilities with booster pumps and/or for introduction of freeze preventive chemicals or other substances other than water.
(b) Commercial:
1. Bottling plant or cannery;
2. Building having five or more stories;
3. Exterminator;
4. Greenhouse;
5. Lawn care companies;
6. Connection to an unapproved water system or unapproved auxiliary water supply;
7. Film laboratory;
8. Commercial laboratory;
9. Mortuary;
10. Laundry;
11. Car wash;
12. Swimming pool;
13. Autopsy facilities;
14. X-ray equipment;
15. Medical office with laboratory;
16. Aspirator;
17. Medical washing equipment;
18. Packing house;
19. Poultry house;
20. Those fire sprinkler systems equipped with facilities with booster pumps and/or for introduction of freeze preventive chemicals or other substances other than water;
21. Water front facilities;
22. Dental office;
23. Any radioactive material;
24. Restaurant;
25. Shopping with tenant conducting any activity listed in this section.
(c) Industrial:
1. Battery manufacturer;
2. Connection to an unapproved water system or unapproved auxiliary water supply;
3. Chemical processing plant;
4. Dairy;
5. Dye works;
6. Hospitals and other medical facilities;
7. Metal fabricating operations;
8. Plating plant;
9. Power plant;
10. Nuclear reactor;
11. Those fire sprinkler systems equipped with facilities with booster pumps and/or for introduction of freeze preventive chemicals or other substances other than water;
12. Water front facilities;
13. Any radioactive material;
14. Sewage pump or treatment facilities.
(B) All installations described in this section shall be deemed severe hazardous uses, and must have a containment device in the form of a reduced pressure zone backflow prevention device provided that, if the consumer demonstrates to the satisfaction of the Cross Connection Coordinator that sufficient internal confinement devices have been installed and tested. The Cross Connection Coordinator may require that the consumer provide engineering drawings sealed by a professional engineer of installations within the premises, which provide complete internal protection against cross-connection as approved by the Cross Connection Coordinator. Any such connection shall be considered another connection for determining the type of containment device required.
(1) Each internal confinement device shall be one of the following, as approved by the Town of Murphy or its authorized representative:
(a) Reduced pressure zone principle backflow prevention device;
(b) Double check valve backflow prevention device;
(c) Double check detector device;
(d) Dual check valve.
(2) Each reduced pressure zone principal backflow prevention device serving as an internal confinement device shall have a mesh strainer immediately upstream of the inlet gate valve.
(C) No person shall fill any tanks or tankers which include the following: those containing pesticides, fertilizers, other toxic chemicals or residues, flush trucks, street sweepers, and non-potable water tankers from a public water system except with an approved air gap fill or an approved reduced pressure backflow preventer properly installed on the tank or tanker or on the public water supply fill pipeline or hose.
(Ord. passed 12-3-2007)