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MONITOR WELL DRILLING AND CONSTRUCTIOIJ SUMMARY <br />NUCLA AND NUCLA EAST MINES <br />Monitor Well Name GW-1J15 (WN0015 <br />Elevation Grvund Level (ft-anisl) <br />• <br />Geologic Unit Monitored Dakota Coa] Overburden <br />5712.55 <br />Location: N 601939.195 E 1,116089.86 Tq7 N R 16 lJ S36 D A C __ <br />Tota] Drill Depth (ft) 79.8 <br />Total Well Depth (ft) 79.8 <br />Drilling Details <br />Borehole Diameter (in) 6 3/4 Rig_ Speedstar 150_0___ <br />Bits Tricone Driller Allan Chiles <br />Drilling Fluid <br />Additional Details <br />Drilling/Construction; Start 06/16/86 Finish 06/17/86 <br />Litlrologic Log (Y/N) N <br />Geophysical Log (Y/N) N <br />u <br />Construction Details <br />Casing Specs: Blank 4" id PVC sch 40 <br />Perforated Interval(s) 15.3 - 79.8 <br />Packer and Cement Basket Set At <br />Cement From 5.0' <br />Bentonite Slurry From NA <br />Gravel Pack Frum 5.0' <br />Perforated 0.02" slot <br />NA _ <br />To Ground Surface <br />To_ _ <br />~u 79.8 <br />Additional Details Gravel pack generally less than 3/8" in diameter taut _ <br />some as large as 1"; also contained some dried twigs. <br />Development Sunmiary Developed for 15 min. on 06/16/811; developed further on _ <br />06/17/86 for 3 '/: hours ultimately producing 1 gpin with 2 1 tsp silt per min <br />Coimnents, Problems <br />Air and Mud <br />D-6 Revised 11/Oti86 <br />