GUIDE TO COLORADO WELL PERMITS, WATER RIGHTS, AND …

described as that "surface and subsurface area surrounding a water well or wellh'eld, supplying a public water system, through which contaminants are reasonably likely to move toward and reach such water well or wellfield" (U.S. Environmental Protection Agency (USEPA), 1987). A time period of a few years to decades is implied in this definition. ................
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