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MONITOR WELL DRILLING AND CONSTRUCTION SUMtdF~RY <br />NUCLA AND NUCLA EAST MINES • <br />Monitor Well Name GW-N18P1(WN0118) Geologic Unit Monitored Dakota Coal (IVerburden <br />Elevation Ground Level (ft-amsl) i;G73.^3 <br />Location: N 597957.9'1G E i.ll/'9r.GJ Tr~N RAW S~ ~ ~ ~ _ <br />Total Drill Depth (ft) ^0.0 <br />Total Well Uepth (ft) 80.0 <br />Drilling Details <br />Borehole Diameter (in) 6 3/4 Rig_Speedstar 1500___~~ <br />Bits Tricone Driller Allan Chiles _ <br />Drilling Fluid Air and Mud <br />Additional Details <br /> <br />Drilling/Construction: Start 06;29/86 Finish 06ip9/g6 <br />Lithologic Log (Y/N) _N <br />Geophysical Log (Y/tl) N <br />• <br />Construction Details <br />Casing Specs: Blank 4"id PVC sch40 <br />Perforated Interval(s)~1.5 - 80.0 <br />Packer and Cement Basket Set At NA <br />Cement From 0.0' <br />Per-forated_ 0.02" and 0_05" slot <br />To 5.0' <br />Bentonite Slurry From NA To ___ <br />Gravel Pack Fruin 5.0' Tu 80.0' _ _ <br />Additional Details Top 48.5' of screen are 0.05" slot. i <br />Development Sunmrary Air/ldater and air development for 1 hour; produced ar°ound 20 <br />gpm. Cleaned up pretty well but water still had a muddy yellow-broom color. <br />Cormients, Problems • <br />0-14 Revised 11/Oi/86 <br />