(A) (1) A high hazardous facility includes, but is not limited to, a bottling plant, cannery, building having five or more stories, battery manufacturer, exterminator, greenhouse, chemical processing plant, dairy, dye works, film laboratory, car wash, hospital, commercial laboratory, laundry, metal fabricating operation, mortuary, swimming pool, morgue, x-ray equipment, medical office with laboratory, aspirator, medical washing equipment, packing house, plating plant, poultry house, power plant, nuclear reactor, pumped fire sprinkler or riser system, or those equipped with facilities for introduction of freeze preventive chemicals or other substances other than water.
(2) High hazardous uses include, but are not limited to: pumps and tanks handling sewage; radioactive, lethal, or toxic substances; boiler and steam connections; sewer waste lines; low inlets to receptacles containing toxic substances, coils, or jackets used as heat exchangers; flush valve toilets without vacuum breaks; bacterial and viral; private wells or other private water supply; water systems; or hose connections, with booster pumps, carbonation equipment, or similar hazard potential as determined by the Director.
(3) All high hazardous facilities must have a containment device in the form of a reduced pressure zone backflow prevention device. The consumer is responsible for installing sufficient internal isolation devices.
(B) All industrial and commercial facilities not identified as “high hazard” will be considered moderate hazard facilities. All moderate hazard facilities must have a double check valve device as a minimum containment device.
(C) The Director may, if in his or her judgment an imminent health hazard exists, cause the water service to the building or premises to be terminated unless an air gap is provided.
(D) It is recommended that a dual check valve be installed at the service connections to single-family residential units.
(E) All new construction plans and specifications shall be made available to the Director for approval, and to determine the degree of hazard.
(F) The Director shall be notified by the customer when the nature of the use of property changes so as to change the hazard classification of the property if necessary.
(2003 Code, § 25-601)