Source Water Assessment and Wellhead Protection Program


Source Water Protection (SWP) Senate Bill 373

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Wellhead Protection Program (WHPP)

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Source Water Protection (SWP) (Senate Bill 373) Definitons


Aboveground storage tank - AST or "tank" means a device made to contain an accumulation of more than one-thousand-three-hundred-twenty (1,320) gallons of fluids that are liquids at standard temperature and pressure, which is constructed primarily of materials, including wood, concrete, steel, plastic or fiberglass reinforced plastic, which provide structural support, more than ninety (90) percent capacity of which is above the surface of the ground, but does not include any process vessel. The term includes stationary devices which are permanently affixed, and mobile devices which remain in one location on a continuous basis for sixty (60) or more days, and includes all ancillary aboveground pipes and dispensing systems up to the first point of isolation and all ancillary underground pipes and dispensing systems connected to the aboveground containers to the first point of isolation.

Community Water System - A public water system that supplies water to the same population year-round.

Conjunctive Delineation - The integrated delineation of the ground water contribution area and the surface water contribution area for a public water system.

Potential Source of Significant Contamination (PSSC) - A facility or activity that stores, uses or produces substances or compounds with potential for significant contaminating impact if released into the source water of a public water supply.

Public Surface Water-Influenced Groundwater Supply Source - (SWIG) A source of water supply for a public water system which is directly drawn from an underground well, underground river or stream, underground reservoir or underground mine, and the quantity and quality of the water in that underground supply source is heavily influenced, directly or indirectly, by the quantity and quality of surface water in the immediate area.

Public Surface Water Supply Source - a primary source of water supply for a public water system which is directly drawn from rivers, streams, lakes, ponds, impoundments or other primary sources of water supplies which are found on the surface of the state.

Public Water Utility - A public water system which is regulated by the West Virginia Public Service Commission pursuant to the provisions of chapter twenty-four of this code.

Watershed - A watershed is an area of land from which surface water drains into a common outlet, such as a river, lake, or wetland.

Wellhead Protection Area (WHPA) - The surface and subsurface area surrounding a water well or wellfield, supplying a public water system, through which contaminants are reasonably likely to move toward and reach such water well or wellfield.

Zone of Critical Concern (ZCC) - The area for a public surface water supply that is comprised of a corridor along streams within a watershed that warrants more detailed scrutiny due to its proximity to the surface water intake and the intake's susceptibility to potential contaminants within that corridor.  The zone of critical concern is determined using a mathematical model that accounts for stream flows, gradient and area topography.  The length of the zone of critical concern is based on a five-hour time-of-travel of water in the streams to the water intake, plus an additional one-fourth mile below the water intake.  The width of the zone of critical concern is one thousand feet measured horizontally from each bank of the principal stream and five hundred feet measured horizontally from each bank of the tributaries draining into the principal stream.

Back to Source Water Protection (SWP) Senate Bill 373

Please forward comments or questions concerning Source Water Protection and Senate Bill 373 to: SWAP

Bureau For Public Health
Office of Environmental Health Services
350 Capitol Street, room 313
Charleston, WV 25301-3713

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