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PEABODY COAL COMPANY - WESTERN DIVISION <br />MONITOR WELL CONSTRUCTION AND COMPLETION SUt4MARY <br />• <br />Mine: Seneca 2 - W Monitor 41e11 Plame: (3J - 52W - 16-0 <br />Location Coors: SE 1/4, SW 1/4, 515, T5N, R8L7"1 _ <br />Ground Surface Elev: 7541.85 Total Depth: 317.3 Feet <br />Peabody Personnel: D. Jones Driller: Winnek Drilling Co. <br />Type of Drilling: rotarv Drilling Fluid: water <br />Borehole Diameter: to 20 ft. 6.75 inch Completion Date: 9/17/87 <br />remain er incTi <br />Well Construction Diagram <br />Completion Details <br />Depths ~ Details Casing Specs: Blank 2 inch schedu]e 40 ovc, flush threaded <br /> P <br />f <br />r <br />d <br />t <br /> er <br />o <br />e <br />a <br />~ inch aMri~~l 40 4 mlllT6~s of ho <br />Ryl' rl- <br /> - <br />~10P CAP zontal mill slots with .02 - .025 inch openings <br />Cement Grout ~ Blank Interval(s) 0-257.2 ft. <br /> <br /> <br /> Perforated Interval(s) 257 <br />2 - 317 <br />2 ft <br />o.a - <br />. <br />. <br />. <br /> • <br />3'o <br /> ° Packer and/or Cement Basket Set At 1 packer set at 317.2 ft. <br /> °°° °°° <br /> °°° <br /> °°° 000 <br /> ooo <br /> ooo aoo Bentonite Seal From none To <br /> <br /> °°° °oo <br /> °°° <br />o°° ' ooo Cement Seal From 0.0,317.2 To 3.0,318.2 <br /> ooo 000 <br /> ooo <br />oso <br />G <br />k From 3 <br />0 T <br />a <br />l P <br />317 <br />2 <br /> . <br />r <br />ve <br />ac <br />o . <br />100.0- ooo <br />°° ~~~ Casing Height or MP Above Ground Surface __ <br />1,89 ft: <br /> °°° <br /> <br />Blank Casin <br />°°° °°° <br />ooo <br />Additional Details <br />g °°° °°° <br /> <br />o <br />o °°° <br /> o °°° <br /> °°° °°° <br />< 3/e" INCH ~~= oeo <br /> 000 opo <br />PEA GRAVEL °°° °°° <br /> °oo ooo <br />I aoo ooo <br /> <br />°°° <br />°°° Development Summary Well was developed b y bailing on <br /> o°° °°° <br /> °°° <br />°O° <br />ooo <br />°°° 7/6/88 <br />2~a O - °°° <br /> °°° <br />°°° °°° <br /> °°° °°° <br />°°° <br /> °°° <br />000 °°° <br />000 <br />ooo <br /> 000 000 <br /> ° <br />ooo <br />° °°° <br />°°° Comments: <br />257.2 - °° <br />°°° --- ooo <br /> 00 ~ °°° <br /> <br />Well Screen <br />o° °° <br />°°° <br /> ~,~ °°° <br /> ~ ooo <br /> aeo ~ °°° <br />300.0 - °°° -~ ooo . <br /> °°° <br />° <br />Packer -'"~ <br />° <br /> ooo ~~ °o <br />317. 2 - <br />O° --~ ° <br />° <br /> O °°° ~~Cement l~raut <br />3~8.;° -. <br />ENN CRP~_ B-g <br />