West Virginia Code of State Rules › Agency 64 - Health › Title 64 - LEGISLATIVE RULE WEST VIRGINIA DEPARTMENT OF HEALTH AND HUMAN RESOURCES › Series 64-15 - Cross-Connection Control And Backflow Prevention › Section 64-15-3 - Definitions

Current through Register Vol. XLI, No. 28, July 12, 2024
3.1. Air Gap
				Separation. -- A physical separation between the free-flowing discharge end of
				a water supply pipe and the flood level rim of a vessel open to the atmosphere
				having a minimum unobstructed vertical distance between the supply pipe equal
				to twice its inside diameter or one inch, whichever is greater.
3.2. Approved. -- Accepted by the
				Commissioner as being suitable for the proposed use.
3.3. Approved Backflow Prevention Assembly.
				-- A double check valve assembly, reduced pressure backflow prevention
				assembly, other devices or methods approved by the Commissioner for preventing
				backflow.
3.4. Auxiliary Water
				Supply. -- Any water source or system available within the building or premises
				other than the community public water system including, but not limited to,
				individual wells, springs, and cisterns. A private water storage tank supplied
				by a community public water system is considered an auxiliary water supply
				unless its design meets the most current minimum design standards required for
				storage tanks for community public water systems, and the water contained in
				them is potable.
3.5. Backflow. --
				The flow of water or other liquids, mixtures, or substances into the
				distributing pipes of a potable supply of water from any source or sources
				other than its intended source. Backsiphonage is one type of
				backflow.
3.6. Commissioner. -- The
				Commissioner of the Bureau for Public Health or his or her designee.
3.7. Cross-Connection. -- Any physical
				connection or arrangement between two otherwise separate systems or sources,
				one of which contains potable water and the other either water, steam, gas, or
				chemical of unknown or questionable safety whereby there may be a flow from one
				system or source to the other, the direction of flow depending on the pressure
				differential between the two systems.
3.8. Degree of Hazard. -- The potential risk
				to health and potential adverse effects upon the public water system based on
				the probability of backflow occurring and the type or nature of the
				contaminant.
3.9. Double Check
				Valve Assembly. -- An arrangement or device consisting of two single,
				independently acting watertight check valves with connections for testing the
				water-tightness of each check valve.
3.10. Flood Level Rim. -- The edge of the
				vessel or receptacle from which water overflows.
3.11. Health Hazard. -- Any condition,
				device, or practice that in the judgment of the Commissioner creates or may
				create a danger to the health and well-being of the water customer.
3.12. Interchangeable Connection. -- An
				arrangement or device that allows the alternate but not simultaneous use of two
				sources of water.
3.13. Low-Suction
				Pressure Cut-Off Controller. -- An arrangement or device designed to shut off a
				pump when the pressure at the suction side of the pump falls below a specified
				level.
3.14. Person. -- An
				individual, partnership, association, syndicate, company, firm, trust,
				corporation, government corporation, institution, department, division, bureau,
				agency, or any entity recognized by law.
3.15. Potable Water. -- Water free from
				impurities in amounts sufficient to cause disease or harmful physiological
				effects, with bacteriological, chemical, physical, and radiological quality
				conforming to applicable regulations and standards of the bureau for public
				health.
3.16. Public Water System
				(PWS). -- Any water supply or system that regularly supplies or offers to
				supply water for human consumption through pipes or other constructed
				conveyances, if serving at least an average of 25 individuals per day for at
				least 60 days per year, or which has at least 15 service connections, and shall
				include:
(1) Any collection, treatment,
				storage, and distribution facilities under the control of the owner or operator
				of the system that are used primarily in connection with the system; and
(2) Any collection or pretreatment
				storage facilities not under the control of the owner or operator of the PWS
				that are used primarily in connection with the system. A PWS does not include a
				system that meets all of the following conditions:
(1) Consists only of distribution and storage
				facilities and does not have any collection and treatment facilities;
(2) Obtains all of its water from, but is not
				owned or operated by, a PWS that otherwise meets the definition;
(3) Does not sell water to any person;
				and
(4) Is not a carrier conveying
				passengers in interstate commerce.