§ 51.25 CONSUMERS.
   An approved backflow prevention device shall be installed on each service line to a customer’s water supply system serving the following types of facilities:
Beauty salons, barbershops, massage parlors, and health clubs
Car washes and automobile servicing facilities
Chemical and petroleum processing or storage of plants
Chemical plants
Food or beverage processing plants
Hospitals, mortuaries, dental clinics, nursing and convalescent homes, and medical buildings
Laundries and dry cleaners
Lawn irrigation systems and swimming pools
Metal degreasing, plating industries, machine tool plants, and dye and metal processing or productions
Multi-storied buildings greater than three stories in height
Other commercial or industrial facilities which may constitute potential cross-connection
Packing houses
Power plants
Premises having radioactive materials, such as laboratories, industries, and hospitals
Premises having water recirculating systems as used for boilers or cooling systems
Rendering plants
Schools, universities, and colleges
Sewage treatment plants, sewage pumping stations, or stormwater pumping stations
Testing laboratories, film laboratories, and film development facilities
Veterinary establishments, kennels, feed yards, stables, rodeo grounds, stockyards, and pet grooming salons
 
(Prior Code, § 3-127)