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 and shall be at least double the diameter of
the supply pipe measured vertically above the flood level rim of the
vessel, but in 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 the premises.
BACKFLOW
The flow, other than the intended direction of flow, of any
foreign liquids, gases or substances into the distribution system
of a public water supply.
CONTAINMENT
Protection of the public water supply by installing a cross-connection
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 which could create an actual hazard
to the public health through poisoning or through spread of disease
by exposure.
CROSS-CONNECTION
Any physical link between a potable water supply and any
other substance, fluid or source, which makes possible contamination
of the potable water supply due to the reversal of flow of the water
in the piping or distribution system.
CUSTOMER
The owner or person in control of any premises supplied by
or in any manner connected to a public water 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.
1.
HAZARD, HEALTHAny condition, device or practice in the water supply system and its operation which could create or may create a danger to the health and well-being of the water customer.
2.
HAZARD, PLUMBINGA plumbing type cross-connection in a customer's potable water system that has not been properly protected by a vacuum breaker, air-gap separation or backflow prevention device.
3.
HAZARD, POLLUTIONALAn actual or potential threat to the physical properties of the water system or to the potability of the public or the customer's potable water system but which would constitute a nuisance or be aesthetically objectionable or could cause damage to the system or its appurtenances, but would not be dangerous to health.
4.
HAZARD, SYSTEMAn actual or potential threat of severe damage to the physical properties of the public potable water system or the customer's potable water system or of a pollution or contamination which 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 which may be chemically,
biologically or otherwise contaminated or polluted in a form or concentration
such as would constitute a health, system, pollutional or plumbing
hazard if introduced into a potable water supply.
ISOLATION
Protection of a facility service line by installing a cross-connection
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 which tends to degrade its quality so as to
constitute a hazard or impair the usefulness of the water to a degree
which does not create an actual hazard to the public health but which
does adversely and unreasonably affect such waters for domestic use.
PUBLIC POTABLE WATER SYSTEM
Any publicly or privately owned water system supplying water
to the general public which 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.