For the purpose of this chapter, the following definitions shall apply unless the context clearly indicates or requires a different meaning.
AIR GAP. An unobstructed vertical distance through an atmosphere between the discharge end of a pipeline supplied from a public water, supply and the overflow rim of the receiving portion of the customer's water system.
BACKFLOW. The flow of contaminant into the public water supply distribution system from a source other that the public water supply.
BOOSTER PUMP. A pump installed on a pipeline to increase water pressure and flow.
CROSS-CONNECTION. Any physical arrangement, including cross-connection control devices not in working order or not installed properly, whereby a public water supply distribution system is directly connected, either continuously or intermittently with any secondary source of supply, sewer, drain, conduit, pool, piping, storage reservoir, plumbing fixture or other device which contains, or may contain, and is capable of imparting to the public water supply, contaminants, contaminated water, sewage or other waste or liquid of unknown of unsafe quality.
CROSS-CONNECTION CONTROL DEVICES. Any device or assembly, approved by the town, Water Department, for construction on, or installation in water supply piping which is capable of preventing contaminants from entering the public water supply distribution system.
CROSS-CONNECTION CONTROL DEVICE TESTER. A person who has successfully completed
training in testing and inspection of cross connection control devices at an agency or school acceptable to the Commissioner (IDEM) who has registered with the Commissioner (IDEM) and who has not been notified by the Commissioner (IDEM) or the town that his work is unacceptable under this subchapter.
CROSS-CONNECTION HAZARD. Any customer's facility which, because of the nature and extent of activities on the premises or the materials used in connection with the activities or stored on the premises, would present an immediate or potential danger or health hazard to customers of the public water supply should backflow occur.
CUSTOMER. Any person who receives water from a public water supply.
CUSTOMER SERVICE LINE. The pipeline from the public water supply to the first tap, fixture, receptacle or other point of customer water use; or the first secondary source of supply or pipeline branch in a building.
CUSTOMER WATER SYSTEM. All piping, fixtures and appurtenances including secondary sources of supply used by a customer to convey water on his premises.
DOUBLE CHECK VALVE ASSEMBLY. A device or assembly composed of two tightly closing shut-off valves surrounding two independently acting spring loaded check valves, with four test cock, one up stream of the four valves and one between each of the check and shut-off valves.
DOWN STREAM. The direction of flow when only the public water supply is supplying water through the customer water system and backflow is not occurring.
PRESSURE TYPE VACUUM BREAKER. A chamber fitted with a spring-loaded air inlet for relieving a vacuum or partial vacuum in a pipeline.
PUBLIC WATER SUPPLY. Any wells, reservoirs, lakes, rivers, source of supply, pumps, mains, pipes, facilities and structures through which water is obtained, treated as may be required, and supplied through which water is obtained, treated as my be required, and supplied through a water distribution system to at least 100 persons per day for drinking, domestic or other purposes, including state-owned facilities.
REDUCED PRESSURE PRINCIPLE BACKFLOW PREVENTER. A device composed of two tightly closing shut-off valves surrounding two independently acting spring loaded pressure reducing check valves which in return surround an automatic pressure differential relief valve and four test cocks, one upstream of the five valves and one between each of the four test cocks, one upstream of the five valves and one between each of the four check and shut-off valves. The check valves effectively divide
the structure into three chambers; pressure is reduced in each downstream chamber allowing the pressure differential relief valve to vent the center chamber to atmosphere should either or both check valves malfunction.
SECONDARY SOURCE OF SUPPLY. Any well, spring, cistern, lake, stream or other water source, intake structure, pumps, piping, treatment units, tanks and appurtenances, used either continuously or intermittently, to supply water other than that from the public water supply to the customer, including tanks used to store water to be used only for firefighting, even though the water contained therein is supplied from the public water supply.
SUPPLIER OF WATER. Any person who owns and/or operates a public water supply.
UPSTREAM. The direction of flow opposite to downstream.
(Ord. 10 of 2015, passed 10-12-2015)