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<br />UNDERBURDEN <br />GROUND SURFACE ~ ~ SURFACE CE~JEtJT CAP <br />L~ I c <br />4" SCH 40 PVC PIPE I I <br />ANNULUS OF HOLE <br />CEMENT PLUG ABOVE PACKER <br />~~T <br />L <br />PIPE PACKER ~~!~ <br />'SHALE TRAP" I ~ <br />~I <br />I <br />END CAP <br />OVERBURDEN <br />IN COAL <br /> <br />• <br />~l <br />I it <br />i~ <br />i~j <br />:`JvT CP,A',4"J TC SCALE <br />PERFORATED ZONE <br />(I/4' HOLES ON 3~ CEtJTERS <br />ON OPPOSITE SIDES OF PIPE) <br />V 97 'juT? <br />-63- <br />CANADIAN STRIP MINE <br />-Jackson County, Colorado <br />SCHEMATIC DIAGRAtAS <br />OF PIEZOMETER COMPLETIONS <br />~na•i 5'r cJUCS ,~::T_ z ~ ~N, F19URE 3 <br />