Definitions. The following definitions shall apply in the interpretation
and enforcement of this Chapter:
AIR GAP SEPARATION
The unobstructed vertical distance through the free atmosphere
between the lowest opening from any pipe or faucet supplying water
to a tank, plumbing fixture or other device and the overflow level
rim of the receptacle. The air gap separation shall be at least double
the diameter of the supply pipe measured vertically above the flood
level rim of the vessel, but no case less than one (1) inch.
AUXILIARY WATER SUPPLY
Any water source or system, other than the public water supply,
that may be available in the building or premises.
BACKFLOW
The flow other than the intended direction of the flow, of
any foreign liquids, gases or substances into the distribution system
of a public water supply.
CONSUMER
The owner or person in control of any premises supplied by
or in any manner connected to a public water system.
CONTAINMENT
Protection of the public water supply by installing a cross
connection control device or air gap separation on the main service
line to a facility.
CONTAMINATION
An impairment of the quality of the water by sewage, process
fluids or other wastes to a degree that could create an actual hazard
to the public health through poisoning or spread of diseases by exposure.
CROSS CONNECTION
Any physical link between a potable water supply and any
other substance, fluid or source that makes contamination of the potable
water supply possible due to the reversal of flow of the water in
the piping or distribution system.
HAZARD: DEGREE OF
An evaluation of the potential risk to public health and
the adverse effect of the hazard upon the potable water system.
a.
HEALTH HAZARDAny condition, device or practice in the water supply system and its operation that could or may create a danger to the health and well-being of the consumer.
b.
PLUMBING HAZARDA plumbing cross connection in a consumer's potable water system that has not been properly protected by a vacuum breaker, air-gap separation or backflow prevention device.
c.
POLLUTION HAZARDAn actual or potential threat to the physical properties of the water system or the potability of the public or the consumer's potable water system that would constitute a nuisance, be aesthetically objectionable or could cause damage to the system or its appurtenances, but would not be dangerous to health.
d.
SYSTEM HAZARDAn actual or potential threat of severe damage to the physical properties of the public potable water system or the consumer's potable water system, or of a pollution or contamination that would have a protracted effect on the quality of the potable water in the system.
INDUSTRIAL PROCESS SYSTEM
Any system containing a fluid or solution that may be chemically,
biologically or otherwise contaminated or polluted in a form or concentration
that constitutes a health, system, pollution or plumbing hazard if
introduced into a potable water supply.
ISOLATION
Protection of a facility service line by installing a cross
connection control device or air gap separation on an individual fixture,
appurtenance or system.
POLLUTION
The presence of any foreign substance (organic, inorganic
or biological) in water that tends to degrade its quality so as to
constitute a hazard or impair the usefulness of the water to a degree
that does not create an actual hazard to the public health, but does
adversely and unreasonably affect the water for domestic use.
PUBLIC POTABLE WATER SYSTEM
Any publicly or privately owned water system supplying water
to the general public that is satisfactory for drinking, culinary
and domestic purposes and meets the requirements of the Missouri Department
of Natural Resources.
SERVICE CONNECTION
The terminal end of a service line from the public water
system. If a meter is installed at the end of the service, then the
service connection means the downstream end of the meter.
WATER PURVEYOR
The owner, operator or individual in responsible charge of
a public water system.