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8 i <br /> IV. Summary <br /> B <br /> In summary, the quarterly ground-water monitoring conducted during 1994 and early 1995 has f <br /> provided the data with which to characterize pre-mining ground-water conditions beneath the f <br /> Teichert parcels and adjacent areas. The observed static ground water levels ranged in depth <br /> from 75 feet in shallow wells to the north, to 260 feet in deep wells in the central and southeast <br /> portions of the area. Shallow ground water typically fluctuated less than two feet through the <br /> year and consistently flowed toward the southeast. Deep ground-water levels were lower and j <br /> i <br /> !� fluctuated more than shallow levels, apparently in response to pumping of local deep irrigation <br /> and production wells. Ground water in the greater perimeter of the permitted mining area has <br /> I <br /> elevated hardness and EC values. The general mineral quality varied with depth: shallow ground j <br /> water was of a sodium/calcium bicarbonate/chloride quality while deep ground water was of a <br /> sodium/calcium bicarbonate/sulfate quality. There are elevated nitrate concentrations in the <br /> shallow and deep ground-water zones that appear to be indicative of historical agricultural land <br /> use in the area. Coliform bacteria testing identified the presence of the bacteria in one domestic <br /> r' well. . Subsequent disinfection of the well structure and surface facilities successfully eliminated <br /> the bacteria. <br /> E <br /> I <br />�1 <br /> © LUHDORFF & SCALMANINI <br />�. CC N SIULTI NC, ENGINEERS <br />