(A) Approved backflow prevention assemblies shall be installed on the service line to any premises that the town has identified as having a potential for backflow.
(B) (1) The following types of facilities or services have been identified by the town as having a potential for backflow of non-potable water into the public water supply system. Therefore, an approved backflow prevention assembly will be required on all services according to the degree of hazard present. Other types of facilities or services not listed below may also be required to install approved backflow prevention assemblies if determined necessary by the town. As a minimum requirement, all commercial services will be required to install a double check valve assembly, unless otherwise listed below.
DCVA = Double check valve assembly | |
RP= Reduced pressure principle assembly | |
DCDA = Double check detector assembly | |
RPDA = Reduced pressure detector assembly | |
AG = Air gap | |
PVB = Pressure vacuum breaker | |
Automotive services stations, dealerships and the like | |
No health hazard | DCVA |
Health hazard | RP |
Automotive plants | RP |
Auxiliary water systems | |
Approved public/private water supply | DCVA |
Unapproved public/private water supply | AG |
Bakeries | |
No health hazard | DCVA |
Health hazard | RP |
Beauty shops/barber shops | |
No health hazard | DCVA |
Health hazard | RP |
Beverage bottling plants | RP |
Breweries | RP |
Buildings: hotels, apartment houses, public and private buildings or other structures having unprotected cross- connections | |
(Under 5 stories) no health hazard | DCVA |
(Under 5 stories) health hazard | RP |
(Over 5 stories) all | RP |
Canneries, packing houses and rendering plants | RP |
Chemical plants: manufacturing, processing, compounding or treatment | RP |
Chemically contaminated water systems | RP |
Commercial car-wash facilities | RP |
Commercial greenhouses | RP |
Commercial sales establishments (department stores, malls and the like) | |
No health hazard | DCVA |
Health hazard | RP |
Concrete/asphalt plants | RP |
Dairies and cold storage plants | RP |
Dye works | RP |
Film laboratories | RP |
Fire systems | |
Systems 3/4-inch to 2-inch | |
No health hazard | DCDA |
Health hazard (booster pumps, foam, antifreeze solution and the like) | RPDA |
Systems 2-1/2-inch to 10-inch (or larger) | |
No health hazard | DCDA |
Health hazard (booster pumps, foam, antifreeze solution and the like) | RPDA |
Hospitals, medical buildings, sanitariums, morgues, mortuaries, autopsy facilities, nursing and convalescent homes, medical clinics and veterinary hospitals | RP |
Industrial facilities | |
No health hazard | DCVA |
Health hazard | RP |
Laundries | |
No health hazard | DCVA |
Health hazard: (i.e., dry cleaners) | RP |
Lawn irrigation systems (split taps) | |
No health hazard | DCVA |
Health hazard: (booster pumps, chemical systems) | RP |
Metal manufacturing, cleaning, processing and fabricating plants | RP |
Mobile home parks | |
No health hazard | DCVA |
Health hazard | RP |
Oil and gas production, storage or transmission properties | RP |
Paper and paper products plants | RP |
Pest control (exterminating and fumigation) | RP |
Plating plant | RP |
Power plants | RP |
Radioactive materials or substances, plants or facilities handling | RP |
Restaurants | |
No health hazard | DCDA |
Health hazard | RP |
Restricted, classified or other closed facilities | RP |
Rubber plants (natural or synthetic) | RP |
Sand and gravel plants | RP |
Schools and colleges | RP |
Sewage and storm drain facilities | RP |
Swimming pools | RP |
Used water and industrial fluids | RP |
Waterfront facilities and industries | RP |
(2) All assemblies and installations shall be subject to inspection and approval by the town's Public Utilities Department.
(Ord. passed 6-21-2011)