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West Elk Mine
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<br />Table 4
<br />Summary of Monitoring Well Data
<br />
<br />Monitoring
<br />Well
<br />Location Ground
<br />Elevation
<br />
<br />(toe, f.) Screened Interval
<br />Depth
<br />
<br />(f) Total
<br />Depth
<br />
<br />(f
<br />Formation of
<br />Completion
<br />Facilitoy Area Wells and Alluvial Wells
<br />GP-3 (MW-8) T13S, R90W, Sec. 10, SW, SW 6145.5 25-30 33.8 Colluvium
<br />GP-4 (MW-9) T13S, R90W, Sec. 10, SW,SW 6147.5 25-30 33.0 Colluvium
<br />GP-6 T13S, R90W, Sec. 10, SW,SW 6204.8 78-83 83.0 Alluvium
<br />GP-7 T13S, R90W, Sec. 15, SW,SW 6205.7 50-55 55 Alluvium
<br />RPE-1 T13S, R90W, Sec. 10, SW,SE 6187.0 n.a. 30.0 Colluvium
<br />RPE-7 T13S, R90W, Sec. 10, SEW 6116.3 n.a. 32.0 Colluvium
<br />Upper Dry Fork(') T14S, R90W, Sec. 2, SW,NW 8100 24-29 29 Alluvium
<br />Lower D Fork-(') T13S, R90W, Sec. 34, SW,NW 7640 17.5-22.5 22.5 Alluvium
<br />Permit Area Wells con: leted in Barren Member above F Seam
<br />
<br />SOM-80
<br />T13S, R90W, Sec. 21, NW.NE
<br />6854.4
<br />50-90
<br />142.5 Barren Mbr.
<br />Mesa Verde Fm.
<br />
<br />SOM-13
<br />T13S, R90W, Sec. 16, SW,NE
<br />6761.9
<br />124-188
<br />188.0 Barren Mbr.
<br />Mesa Verde Fm.
<br />
<br />SOM-45-H1
<br />T13S, R90W, Sec. 29, NE: SW
<br />7703.5
<br />n.a.
<br />320.0 Barren Mbr.
<br />Mesa Verde Fm.
<br />
<br />SOM-45-H2
<br />T13S, R90W, Sec. 29, NE,SW
<br />7703.8
<br />n.a.
<br />260.0 Barren Mbr.
<br />Mesa Verde Fm.
<br />
<br />SOM-23-H4 2
<br />TI 3S, R90W, Sec. 33, NW, NW
<br />7518
<br />70-220
<br />225 Barren Mbr.
<br />Mesaverde Fm.
<br />Permit Area Wells com feted in F Seam
<br />SOM-2-H T13S, R90W, Sec. 29, SE,NW 7873.6 Open hole 5.5 ft. 716.8 F-Seam
<br />SOM-16-H T1 3S, R90W, Sec. 28, SW,NW 8029.6 Open hole 1025-1034 ft. 1034.0 F-Seam
<br />Permit Area Wells coin, feted in E Seam
<br />96-27-1 T13S, R90W, Sec. 27, NW,NE 7871.5 1270-1290 1320.0 E-Seam
<br />SOM-23-H-2 z T13S, R90W, Sec. 33, NW,NW 7518 -356-376 376 E-Seam
<br />03-11-1 (') T13S, R90W, Sec. 11, SE,SE 6281 240 - 250 253 E-Seam
<br />SOM-3E ?U T13S, R90W, Sec. 34, SE,SE -8051 1015-1035 1035.0 E-Seam
<br />Permit Area Wells completed above E Seam
<br />96-2-2 T14S, R90W, Sec. 2, NE,NTE 7999.0 1063-1083 1540.0 Above E-Seam
<br />Permit Area Wells com feted in B Sean:
<br />SOM-129-H T13S, R90W, Sec. 16, NE,NE 6269.1 334-362 365.0 B-Seam
<br />So. W-1 TI 3S, R90W, Sec. 29, NW,SW 8020.0 1320-1380 1380.0 B-Seam
<br />RAV-4b T13S, R90W, Sec. 15, SE, SW 6687.0 600-625 630.0 B-Seam
<br />01-11-1 T13S, R90W, Sec. 11, SE,NE 6281.3 489-499 509.0 B-Seam
<br />SOM-3B T13S, R90W, Sec. 34, SE,SE -8051 1994.5-1315 1415.0 B-Seam
<br />SOM-23-H-1 2 3 T13S, R90W, Sec. 33, NW,NW 7518 587-604* 604 B-Seam
<br />Stud Area Wells completed fn F Seam
<br />SOM C-76 T13S, R90W, Sec. 33, NW,NE 7579.6 n.a. 457.0 F-Seam
<br />SOM-23-H-3 TI 3S, R90W, Sec. 33, NW, NW 7518 217-232* 232 F-Seam
<br />(1) New monitoring well installed in September 2003
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<br />2.04-61
<br />Revised June 2005 PRIG, Alarch 2006; Rev. Apri12006 PRIO, Sep. 2007PR12
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