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Test Boring <br /> A Twelve-inch surface hole was drilled with air to a depth of 20 feet. Steel, 8 5/8- <br /> inch surface casing was set and cemented in place using a cement/bentonite (3% <br /> bentonite) grout. The grout was placed by pumping it through a treml to the <br /> bottom of the drill hole and allowing it to fill, from the bottom to the top. <br /> Eighteen inches of surface casing was allowed to stick up above the ;round <br /> surface. The grout was allowed to cure overnight. A 7 7/8-inch hole was then <br /> drilled, with air, to a depth of 75 feet. <br /> Figure 2 is a geological log of the well. As is evidenced by this log the• upper <br /> portion of the boring is essentially sandstone to a depth of 43.5 feet, with a thin <br /> layer of shale from 24- to 30 feet. The boring then penetrated a 2.5-foot coal layer, <br /> followed by shale to the total depth of 75 feet. Upon reaching a total depth of 75 <br /> i <br /> feet the boring was allowed to stand for four hours. Air-lift pumping was then <br /> attempted. Although some of the sandstone layers were damp the well did not <br /> iyield water. <br /> i The boring was subsequently plugged and abandoned by placing <br /> cement/bentonite (3%) grout, by tremi, from TD to 3 feet below the surface. The <br /> steel surface casing was then cut off three feet below the surface a steel cap <br /> welded to the top of the casing then covered with soil. <br />