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MDW 21-05/06 <br />METHANE DRAINAGE WELLS <br />GROUND LEVEL VALVE <br />71 ~0 FT. EL. ~ I I , <br />Xx <br />19 INCH HOLE FOR SURFACE <br />CASING DRILLED 38 FEET <br />16 INCH DIAMETER SURFACE <br />CASING INSTALLED TO 38 FEET <br />12 1 /4 INCH DIAMETER HOLE, <br />HAMMER DRILLED 38-220 FEET <br />MOTOR DRILLED 220 - 883FEET <br />830 FEET <br />65 FEET <br />245 FEET TVD <br />TD 1128 FEET <br />7 INCH SLOTTED CASING <br />25 FEET <br />SE. <br />MINING <br />DIRECTION <br />40 FEET OF BLANK 7 INCH 270 FEET <br />OF 7 INCH SLOTTED STEEL CASING NOT <br />CEMENTED IN PLACE, BOTTOM OF CASING <br />1128 FEET <br />METHANE <br />GAS <br />®~-#~ <br />Y <br />U <br />O <br />U <br />w <br />a <br /> <br />- 9 5/8 INCH STEEL CASING, <br />SURFACE - 883 FEET <br />