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10 <br /> f <br /> I � <br /> IV. Summary <br /> In summary, the quarterly ground-water monitoring conducted during the last two years has <br /> provided the data with which to characterize pre-mining ground-water conditions beneath the <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 three feet through the i <br /> monitoring period and consistently flowed toward the southeast. Deep ground-water levels were <br /> lower and fluctuated more than shallow levels, apparently in response to pumping of local deep <br /> irrigation and production wells. Ground water within the greater perimeter of the permitted <br /> I <br /> reining area has elevated hardness and EC values. The general mineral quality varied with depth: <br /> shallow ground water was of a sodiuni/calcium bicarbonate/chloride quality while deep ground <br /> water was of a sodium/calcium bicarbonate/sulfate quality. There are elevated nitrate 1 <br /> i <br /> concentrations in the shallow and deep ground-water zones that appear to be indicative of <br /> historical agricultural land use in the area. Coliform bacteria testing identified the presence of the <br /> bacteria in one domestic well approximately one and one-half years ago; subsequent disinfection <br /> of the well structure and surface facilities have successfully climinated the bacteria. <br /> h <br /> i <br /> j <br /> k <br /> R <br /> I <br /> i <br /> I <br /> I <br /> LUHL_.JRFF f SCALFAI�. WIJI <br /> I <br />