Definitions. The following definitions shall apply in the interpretation
and enforcement of these regulations:
AGENCY
The Illinois Environmental Protection Agency.
APPROVED
Backflow prevention devices or methods approved by the Foundation
for Cross-Connection Control and Hydraulic Impacts of the University
of Southern California Association of State Sanitary Engineers, American
Water Works Association, American National Standards Institute or
certified by NSF International.
AUXILIARY WATER SYSTEM
Any water source or system on or available to the premises
other than the public water supply system and includes the water supplied
by the system. These auxiliary waters may include water from another
purveyor's public water supply system; or water from a source such
as wells, lakes, or streams, or process fluids; or used water. These
waters may be polluted or contaminated or objectionable or constitute
a water source or system over which the water purveyor does not have
control.
BACKFLOW
The flow of water or other liquids, mixtures, or substances
into the distribution pipes of a potable water system 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. All devices used for backflow
prevention in Illinois must meet the standards of the Hometown Plumbing
Code and the Illinois Environmental Protection Agency.
CONSUMER or CUSTOMER
The owner, official custodian 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. A building
plumbing system is considered to be a customer's water system.
CONTAMINATION
An impairment of the quality of the water by entrance of
any substance to a degree which could create a health hazard.
CROSS-CONNECTION
Any physical connection or arrangement between two otherwise
separate piping systems, one of which contains potable water and the
other a substance of unknown or questionable safety or quality, whereby
there may be a flow from one system into the other.
DIRECT CROSS-CONNECTION
A cross-connection formed when a water system is physically
joined to a source of unknown or unsafe substance.
DOUBLE CHECK VALVE ASSEMBLY
An assembly composed of single, independently acting check
valves approved under ASSE Standard 1015. A double check valve assembly
must include tight shutoff valves located at each end of the assembly
and suitable connections for testing the watertightness of each check
valve.
FIXED PROPER AIR GAP
The unobstructed vertical distance through the free atmosphere
between the water discharge point and the flood level rim of the receptacle.
HEALTH HAZARD
Any condition, device or practice in a water system or its
operation resulting from a real or potential danger to the health
and well-being of consumers. The word "severe" as used to qualify
"health hazard" means a hazard to the health of the user that could
be expected to result in death or significant reduction in the quality
of life.
INDIRECT CROSS-CONNECTION
A cross-connection through which an unknown substance can
be forced, drawn by vacuum or otherwise introduced into a safe potable
water system.
INSPECTION
A plumbing inspection to examine carefully and critically
all materials, fixtures, piping and appurtenances, appliances and
installations of a plumbing system for compliance with requirements
of the Hometown Plumbing Code.
NONPOTABLE WATER
Water not safe for drinking, personal, or culinary use as
determined by the requirements of the Illinois Environmental Protection
Agency.
PLUMBING
The actual installations repair, maintenance, alteration
or extension of a plumbing system by any person. Plumbing includes
all piping, fixtures, appurtenances and appliances for a supply of
water for all purposes, including without limitation lawn sprinkler
systems, from the source of a private water supply on the premises
or from the main in the street, alley or at the curb to within and
about any building or buildings where a person or persons live, work
or assemble. Plumbing includes all piping, from discharge of pumping
units to and including pressure tanks in water supply systems. Plumbing
includes all piping, fixtures, appurtenances, and appliances for a
building drain and a sanitary drainage and related ventilation system
of any building or buildings where a person or persons live, work
or assemble, from the point of connection of such building drain to
the building sewer or private sewage disposal system five feet beyond
the foundation walls.
POLLUTION
The presence of any foreign substance (organic, inorganic,
radiological, or biological) in water that tends to degrade its quality
so as to constitute a hazard or impair the usefulness of the water.
POTABLE WATER
Water which meets the requirements of the Illinois Environmental
Protection Agency for drinking, culinary, and domestic purposes.
POTENTIAL CROSS-CONNECTION
A fixture or appurtenance with threaded hose connection,
tapered spout, or other connection which would facilitate extension
of the water supply line beyond its legal termination point.
PROCESS FLUID(S)
Any fluid or solution which may be chemically, biologically
or otherwise contaminated or polluted in a form or concentration such
as would constitute a health, pollutional, or system hazard if introduced
into the public or a consumer's potable water system. This includes,
but is not limited to:
(1)
Polluted or contaminated waters;
(3)
Used waters originating from the public water supply system
which may have deteriorated in sanitary quality;
(5)
Questionable or contaminated natural waters taken from wells,
lakes, streams, or irrigation systems;
(6)
Chemicals in solution or suspension;
(7)
Oils, gases, acids, alkalis and other liquid and gaseous fluids
used in industrial or other processes or for fire-fighting purposes.
PUBLIC WATER SUPPLY
All mains, pipes and structures through which water is obtained
and distributed to the public, including wells and well structures,
intakes and cribs, pumping stations, treatment plants, reservoirs,
storage tanks and appurtenances, collectively or severally, actually
used or intended for use for the purpose of furnishing water for drinking
or general domestic use and which serve at least 15 service connections
or which regularly serve at least 25 persons at least 60 days a year.
A public water supply is either a "community water supply" or a "non-community
water supply."
REDUCED PRESSURE PRINCIPLE BACKFLOW PREVENTION DEVICE
A device containing a minimum of two independently acting
check valves together with an automatically operated pressure differential
relief valve located between the two check valves and approved under
ASSE Standard 1013. During normal flow and at the cessation of normal
flow, the pressure between these two checks shall be less than the
supply pressure. 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 check valves 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.
SERVICE CONNECTION
The opening, including all fittings and appurtenances at
the water main through which water is supplied to the user.
SURVEY
The collection of information pertaining to a customer's
piping system regarding the location of all connections to the public
water supply system and must include the location, type and most recent
inspection and testing date of all cross-connection control devices
and methods located within that customer's piping system. The survey
must be in written form and should not be an actual plumbing inspection.
SYSTEM HAZARD
A condition through which an aesthetically objectionable
or degrading material not dangerous to health may enter the public
water supply system or a customer's potable water system.
USED WATER
Any water supplied by a public water supply system to a customer's
water system after it has passed through the service connection and
is no longer under the control of the water supply official custodian.
WATER PURVEYOR
The owner or official custodian of a public water system.