Boonville Definitions ordinance (§ 21-42.22)

These definitions shall apply in the interpretation and enforcement of this division.

Air gap separation means 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 inch.

Auxiliary water supply means any water source or system, other than the public water supply, that may be available in the building or premises.

Backflow means 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.

Backflow prevention assembly means any double check valve or reduced pressure principle backflow preventer having resilient-seated shut-off valves on both the upstream and downstream end and the necessary test cocks as integral parts of the assembly.

Consumer means the owner or person in control of any premises supplied by or in any manner connected to a public water system.

Containment means protection of the public water supply by installing a backflow prevention assembly or air gap separation on the main service line to a facility.

Contamination means 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 means any physical link between a potable water supply and any other substance, fluid or source which makes possible contamination of potable water supply due to the reversal of flow of the water in the piping or distribution system.

Director of public works means that department head designated as director of public works and as part of the duties of that position is responsible for the operation and maintenance of the public water system serving the city.

Hazard, degree of means an evaluation of the potential risk to public health and the adverse effect of the hazard upon the potable water system.

(1) Health hazard. Any condition, device, or practice in the water supply system and its oper-

ation which could create or may create a danger to the health and well-being of the water consumer.

(2) Plumbing hazard. A plumbing type crossconnection in a consumer's potable water system that has not been properly protected by a vacuum breaker, air gap separation or backflow prevention assembly.

(3) Pollutional hazard. An actual or potential threat to the physical properties of the water system or to the potability of the public or the consumer's potable water system 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) System hazard. An 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 which would have a protracted effect on the quality of the potable water in the system.

Industrial process system means 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 means protection of a facility's internal plumbing system by installing a backflow prevention assembly, air gap separation or other backflow prevention device on an individual fixture, appurtenance or system.

Pollution means 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 means 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 state department of natural resources. Service connection means 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.