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PEABODY COAL COMPANY - WESTERN DIVISION <br />MONITOR WELL CONSTRUCTION AND COMPLETION SUMMARY <br />. S2W <br />15 <br />CYl <br />0 <br />Mine: Seneca 2 - W Monitor Wel l - <br />- <br />- <br />Name: <br />Location Coors: SE 1/ 4, NW 1/4, 575 , T51J, R88W <br />Ground S urface Elev: 7514.64 Total Depth: 341.2 ft. <br />Peabody Personnel: T. Smith Driller: Winnek Drilling Co. <br />Type of Drilling: mtar y Drilling Fluid: water <br />Borehole Diameter: too ZO ft 6.75 inch Completion Date: 9/8/87 <br /> rarainder 4.5 inch <br />Well Construction Diagram ~ Completion Details <br />Depths D etails Casing Specs: Blank 2 inch schedule 40 pvc, flush threaded <br /> Perforated 2 inch schedule 40 ovc. 4 colurns of <br /> <br />toP CAP~ _~ 025 inch openings <br />l mill slots with <br />02 - <br />nt <br />h <br />i <br /> * <br />~~ . <br />a <br />. <br />or <br />zo <br /> <br /> Blank Interval(s) 0 - 69 feet and 81 -~ 289 feet <br />G.o- <br />Cement <br />rout~~ <br />g <br /> 341 feet <br />Perf <br />ted Inter <br />l( <br />81 f <br />nd 289 <br />) 69 <br />t <br /> o,° <br />000 <br />°°° °°o <br />°°° <br />°°° <br />°°° ora <br />va <br />- <br />s <br />- <br />ee <br />a <br /> <br />'°° <br />°°° °°° <br />°°° <br />°°° <br />Packer and/or Cement Basket Set At 1 packer set at 341 feet <br />69.0 - °°o <br />°°° °°° <br />°°° <br /> °°° '. °°° <br />81.0-- °°° <br /> °°° oo° Bentonite Seal From none To <br /> °°° ° <br />0 - <br />100 aoo 000 <br />. °°° °°° Cement Seal From 0.0 ft. To 4.0 ft. <br /> ooa To 341.0 ft. <br />Gravel Pack From 4 <br />0 ft <br /> . <br />. <br /> °°° <br />°°° <br />° <br />a° Casing Height or MP Above Ground Surface 2.43 ft. <br />blank casin °°° Additional Details <br />g °° <br /> ooe 000 <br />°°° <br /> oao <br />200.0 - ~~~ <br />°°° ° <br />°°° <br /> °~~ o0o Development Summary i•1e11 <br />was developed by bailing on 7/6/88, <br /> <oe <br />ooe °oo <br />o°° <br />air surging on 7/20/88, followed by Trove bailing on 9/1/88. <br /> °°° <br />/8 INCH °°° <br />< 3 °° °°° <br />PEA GRAVEL o°° °° <br /> °"° °°" Comments: <br /> 000 000 <br /> <br />289.0 - 000 <br />000 <br />~ 000 <br />oo° <br />' <br />300.0- °°° <br />oeo -' °° <br />°°° <br />°°° <br />Well Screen °°° <br />oe <br />341 - oo °°° <br />°°° <br />341.2 - <br />O°°°°°° <br /> <br />~ END CAP <br />~ <br />Packer <br /> B-5 <br />