The purpose of this article is to safeguard the Village of Springville's
potable water supply from potential contamination by preventing backflow
from a water user's system into the public water system. It is
the intent of this article to recognize that there are varying degrees
of hazard and to apply the principle that the degree of protection
should be commensurate with the degree of hazard. Further, it is the
intent of the Village of Springville to comply with the requirements
of the New York State Sanitary Code, Part 5, Section 5-1.31, which
section mandates that the supplier of water protect its public water
system in accordance with procedures acceptable to the New York State
Commissioner of Health. These mandated requirements are as set forth
in the Cross-Connection Control Manual published by the New York State
Department of Health (NYSDOH) and to that extent, the terms, conditions
and provisions of the New York State Sanitary Code, Part 5, Section
5-1.31 and the Cross-Connection Control Manual are incorporated in
this article by reference as if fully stated herein.
For this article the following terms shall have the meanings
indicated:
AIR GAP SEPARATION
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 one inch.
APPROVED CHECK VALVE
A check valve that seals readily and completely. It must
be carefully machined to have free-moving parts and assured watertightness.
The face of the closure element and valve seal must be bronze, composition
or other noncorrodible material which will seal tightly under all
prevailing conditions of field use. Pins and bushings shall be of
bronze and other noncorrodible, nonsticking material, machined for
easy 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.
APPROVED DOUBLE-CHECK VALVE ASSEMBLY
Two single independently acting check valves, including tightly
closing shutoff valves located at each end of the assembly and suitable
test connections. This device must be approved as a complete assembly.
APPROVED REDUCED PRESSURE ZONE DEVICE
A minimum of two independently acting check valves together
with an 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
shutoff 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.
APPROVED WATER SUPPLY
Any water supply approved by the New York State Department
of Health for human consumption.
AUXILIARY SUPPLY
Any water supply on or available to the premises other than
the approved public water supply.
CERTIFIED BACKFLOW PREVENTION DEVICE TESTER
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 currently valid certificate by the New
York State Department of Health (NYSDOH).
CROSS-CONNECTION
Any connection unprotected against backflow between any part
of a water system used or intended to be used as a supply of water
for drinking purposes and a source or system containing water or a
substance that is not or cannot be approved as equally safe, wholesome
and potable for human consumption.
PUBLIC WATER SUPPLY USER
A person(s), partnership, corporation or other entity that
owns or occupies property within the Village of Springville that is
connected to the Village's public water supply system or has
made application for such connection.
WATER SUPERVISOR
The person on the user's premises charged with the responsibility
of complete knowledge and understanding of the water supply piping
within the user's premises and for maintaining the user's
water system free from cross-connections and other sanitary defects,
as required by this article and all other existing requirements, regulations
and laws.