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MONITOR WELL CONSTRUCTION AND COMPLETION SUMMARY <br /> Mine: Nucla East Monitor Well Name: GW-N31 (WNUO31) (887NC) <br /> Location Coors: N 595597.8 E 1114828.2 <br /> Ground Surface Elev: 5612.0 Total Depth: 24.0 feet <br /> Peabody Personnel : Mark Koffler Driller: Winnek <br /> Type of Drilling: Rotary Drilling Fluid: Air <br /> Borehole Diameter: 4.5 inches Completion Date: 9/16/37 <br /> Well Construction Diagram Completion Details <br /> Depths Details Casing Specs: Blank Two inch flush threaded schedule 40 <br /> PVC Perforated .20 mil - slotted two inch schedule <br /> 40 PVC well screen <br /> Blank Intervals)-0-0 - 14.0 feet <br /> o Perforated Intervals) 14.0 - 24.0 feet <br /> (Gig)and/or Cement Basket Set At E.O feet <br /> T <br /> -= •' •• Benton i to Seal From 8.0 To 7.5 feet <br /> Cement Seal From 7.0 To 0.0 feet <br /> 10 Gravel Pack From None To None <br /> Casing Height or MP Above Ground Surface <br /> _— Additional Details This well monitors the overburden <br /> material <br /> 20 Development Summary. This well was developed by bailing. <br /> Comments: <br /> 30 <br /> Not to scale <br /> H-2 <br />