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MONITOR WELL DRILLING AND CONSTRUCTION SUh1MARY <br />• NUCLA AND NUCLA EAST MINES <br />Monitor Well Name n,~0 yu.~~nti Geologic Unit Monitored <br />( ~ Dakota Coal <br />Elevation Ground Level (ft-anrsl) 5739.746 <br />Location: N 600391.845 E 1,119304.80 T 46 N R 15 W S 6 B A A <br />Total Drill Depth (ft) 76.5 ^ <br />Total Well DepLlr (ft) 76.5 <br />Drilling Details <br />Borehole Diameter (in) 7 7/g Rig Soeedstar 1500 <br />Bits Tricone Driller Allan Chiles <br />Drilling Fluid Air and Mud <br />Additional Details <br />Drilling/Construction: Start 07/08/86 Finish 07/09/86 <br />Lithologic Log (Y/N)~_ <br />Geophysical Log (Y/tl) N <br />• <br />Construction Details <br />Casing Specs: Blank 4"id PVC sch40 <br />Perforated Interval(s) 5S.6' - 76.5' <br />Perforated 0.05" slot <br />Packer and Cement Basket Set At 76.5' <br />Cement From 33.0' <br />Bentonite Slurry From 5.0' <br />Gravel Pack Frum NA <br />Additional Details <br />Development Sunnnary Air/water and air injection for 2 hours, cleaned up and pro- <br />duced 2 gpm. <br />• Connuents, Problems <br />To 33.0' <br />To <br />To 53.6' <br /> <br />