The purpose of the program is to protect the public potable water supply from contamination or pollution by isolating within the consumer’s water system contaminants or pollutants which could backflow through the service connection into the public potable water system. Backflow means the flow of water or other liquids. mixtures or substances into the distributing pipes of a potable water supply from any source other than the intended source of the potable water supply.

Backflow Prevention Device – any device. method or type of construction intended to prevent backflow into a potable water system.

Consumer – the owner or person in control of any premises supplied by or in any manner connected to a public water system.

Consumer’s Water System – any water system located on the consumer’s premises, supplied by or in any manner connected to a public water system.

Contamination – an impairment of the quality of water by sewage or process fluid. or waste to a degree which could create an actual hazard to the public health through poisoning or through spread of disease by exposure.

Make-up Line – the water line directly tapped to the consumer’s service connection line that provides water to the boiler which the premises uses for heat.

Potable Water – water which is satisfactory for drinking, culinary and domestic purposes and meets the requirements of the Environmental Protection Agency (EPA).

Service Connection – the discharge side of the service shut off; to the first shutoff valve located inside the structure. This consists of all the piping of fittings. valves and appurtenances on the consumer’s side of the service shut off.

Supplier of Water – the owner or operator of the public water system.