Five year TOT and flow boundaries are used to determine the extent of the protection area. Topography analysis for recharge areas limits the WHPA with due consideration of the additional parameters listed above. Five year TOT and flow boundaries are used to determine the extent of the protection area. Hydrogeologic mapping is used with additional parameters listed above. Five year TOT flow boundaries are used to detrermine the extent of the protection area.
Hydrogeologic mapping is used with the additional parameters listed above.
The mined extent of the coal seam overlaind on the structure contour map projected onto the surface topography map produces the wellhead protection area with consideration give to the additional parameters listed above. The determination of WHPAs for each geologic setting is subject to revision as information becomes available. An inventory of past and present land uses and a projection of planned futures uses is essential for development of an effective wellhead protection program. There are numerous and varied potential source of groundwater contamination. In addition, either is the possiblity of a number of uncontrolled potential sources such as improper disposal of paints, cleaning fluids, oil, varnishes, etc.