A.
Purposes.
(1)
To determine and establish a legal foundation for a municipal cross-connection control and backflow prevention program in order to protect the Village of Red Hook public water supply from the possibility of contamination or pollution by isolating within its customers' internal water distribution system such contaminants or pollutants which would backflow or backsiphon into the public water supply system.
(2)
To establish technical specifications for cross-connection control and backflow prevention and, in turn, to promote the elimination or control of existing cross-connections, actual or potential, between its customers' in-plant potable water system and any other water system.
(3)
To establish penalty specifications for violations and, in turn, to provide for the maintenance of a continuing program of cross-connection control which will effectively prevent the contamination or pollution of the Village's public water supply system by cross-contamination.
B.
Authority. Pursuant to the federal Safe Drinking Water Act of 1974[1] and the New York State Sanitary Code, Subpart 5-1, Public Water Supplies, Section 5-1.31, the water supplier has the primary responsibility for preventing water from unapproved sources or any other substances from entering the public water supply system. This Part 3 is adopted pursuant to Municipal Home Rule Law § 10.
C. AIR GAP SEPARATION APPROVED CHECK VALVE APPROVED DOUBLE CHECK VALVE ASSEMBLY APPROVED REDUCED PRESSURE ZONE BACKFLOW PREVENTER DEVICE AUXILIARY SUPPLY BACKFLOW PREVENTION DEVICE CERTIFIED BACKFLOW PREVENTION DEVICE TESTER CROSS-CONNECTION PUBLIC WATER SUPPLY VACUUM BREAKER VILLAGE
Definitions. As used in this Part 3, the following terms shall have the meanings indicated.
A physical break between a supply pipe and a receiving vessel. The air gap shall be at least double the diameter of the supply pipe, measured vertically above the top rim of the vessel, in no case less than an inch. Air gaps must be rigidly mounted and the discharge end of the supply pipe must not be threaded or provided with a means for making connections. Use of an air gap means that there will be clear vertical separation between the pressurized supply pipe and a nonpressurized receiving vessel. This assembly may be installed on either low or high hazard conditions.
A check valve that seats readily and completely. It must be carefully machined to have free moving parts and assured water tightness. The face of the closure element and valve seat must be bronze, composition, or other noncorrodible material which will seat tightly under all prevailing conditions of field use. Pins and bushings shall be of bronze and other noncorrodible, nonsticking material, machined for easily dependable operation. The closure element shall be internally weighted or otherwise internally equipped to promote rapid and positive closure in all sizes where this feature is obtainable. This valve may only be used to protect against low hazard installations.
Two single independently acting check valves, including tightly closing shut off valves located at each end of the assembly and suitable test connections. This device must be approved as a complete assembly. Double check valves are commonly used to protect against low to medium hazard installations, such as food processing equipment or lawn sprinkler systems. They may be used under continuous pressure and protect against both backsiphonage and backpressure conditions.
A minimum of two independently acting check valves together with automatically operated pressure differential relief valve located between the two check valves. In case of leakage of either check valve, the differential relief valve, by discharging to the atmosphere, shall operate to maintain the pressure between the checks at less than the supply pressure. The unit must include tightly closing shut-off valves located at each end of the device, and each device shall be fitted with properly located test cocks. This device must also be approved as a complete assembly. This assembly may be installed on either low or high hazard conditions.
Any water supply on or available to the premises other than the approved public water supply.
Backflow devices prevent contaminated water or chemicals from flowing back into the drinking water supply if there is a sudden or unexpected change in water pressure. If a property requires a backflow prevention device, it must be installed on water service lines to the property.
An individual who has successfully completed a New York State Department of Health-approved course in the testing of backflow prevention devices and has been issued a certificate by the New York State Department of Health.
Any unprotected connection between any part of a water system used or intended to be used as a supply of water for drinking purposes in a source or systems containing water or substance that is not or cannot be approved as equally safe, wholesome and potable for human consumption.
The Village of Red Hook's water supply approved by the New York State Department of Health.
Pressure type and non-pressure type. A vacuum breaker which can only be used for internal plumbing control and, therefore, not acceptable as a containment device.
The Village of Red Hook, Dutchess County, New York.