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PEABODY COAL COMPANY - WESTERN DIVISION MONITOR WELL CONSTRUCTION AND COMPLETION SUMMARY ~ 2 W S CiJ 0 S2W 14 ine: - eneca Monitor Well - - - Name: Location Coors: NW'h,NE'/., S15,T5P1, R88W Ground S urface Elev: 7258.90 Total Depth: 99 feet Peabody Personnel: T .Smith Driller: Winnek Drilling Co. Type of Drilling: rotary Drilling Fluid: water Borehole Diameter: top 20 ft. 6.75 inch Completion Date: 9/5/87 remainder 4.5 inch Well Construction Diagram Depths Details CEMENT i0P GROUT cqp 0.0 - ~ `~ 3.5 ~ 3.0.__ 19.5 ..... blank casing 44.0 - 50.0 - Well Screen• < 3/8 INCH _ PEA GRAVEL 89.0 END CA 00 oa o0 0o ao oe oo° ao 00 00 00 00 ao 00 00 00 00 00 ao 00 00 oe oe o0 00 00 ao 00 00 00 00 00 00 00 00 00 00 00 00 -" oad 00 00 oa _ o~ 000 0o aoo ~- ooa loo _ aea 00 ooa 00 _ 00 ua eoo eo 00 goo aoc 00 _ ooa 00 00~ 0o as 00 00< 99.0 100 - Completion Details Casing Specs: Blank 2 inch schedule 40 pvc. flush threaded Perforated 2 inch schedule 40 Dvc, 4 colums of horizontal mill slots with .02 - .025 inch openings Blank Interval(s) 0-13 ft., 19.5 - 44.5 ft. and 89 to 99 ft. Perforated Interval(s) 13 - 19.5 ft, and 44 - 89 ft. Packer and/or Cement Basket Set At Bentonite Seal From none To Cement Seal From 0.0 ft. To 3.5 ft. Gravel Pack From 3.5 ft_ To 99 ft_ Casing Height or MP Above Ground Surface 2.50 ft. Additional Details Development Summary hell was developed by air sun~ina follo-.red by bailing on 9/25/87. Pr~ditional developnent by water injection and bailing on 10/19/88. Comments: E-3