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Monitoring Well
<br />Location
<br />Ground
<br />Elevation
<br />(toc, ft.)
<br />Screened
<br />Interval Depth
<br />(ft)
<br />Total Depth
<br />(ft)
<br />Formation of
<br />Completion
<br />Facility Area Wells and Alluvial Wells
<br />GP -3 (MW -8)
<br />T13S, R9OW, Sec. 10. SW.SW
<br />6145 5
<br />25 -30
<br />33.8
<br />Colluvium
<br />GP -4 (MW -9)
<br />T13S, R9OW, Sec. 10, SW,SW
<br />6147.5
<br />25 -30
<br />33.0
<br />Colluvium
<br />GP -6
<br />T13S, R9OW, Sec. 10, SW.SW
<br />6204.8
<br />78 -83
<br />83.0
<br />Alluvium
<br />(Syl. Gulch)
<br />GP -7
<br />T13S. R9OW, Sec. 15, SW.SW
<br />6205.7
<br />50 -55
<br />55
<br />Alluvium
<br />(Syl. Gulch)
<br />RPE -1
<br />T135, R9OW, Sec 10. SW.SE
<br />6187.0
<br />n.a.
<br />30.0
<br />Colluvium
<br />RPE -7
<br />T135, R9OW, Sec. 10, SE•SW
<br />6116.3
<br />12 -32
<br />32.0
<br />Colluvium
<br />Upper Dry Fork Alluvial
<br />T145, R9OW, Sec. 2, SW,NW
<br />8100
<br />24 -29
<br />29
<br />Alluvium
<br />Lower Dry Fork Alluvial
<br />T135, R9OW, Sec. 33, NE,NW
<br />7640
<br />17.5 -22.5
<br />22.5
<br />Alluvium
<br />Permit Area Wells completed in the Barren Member above F - Seam
<br />SOM -80
<br />T135, R9OW, Sec. 21, NW,NE
<br />6854.4
<br />50 -90
<br />142.5
<br />Barren Mbr.
<br />Mesa Verde Fm.
<br />SOM -13
<br />T135, R9OW, Sec. 16, SW,NE
<br />6761.9
<br />124 -188
<br />188.0
<br />Barren Mbr.
<br />Mesa Verde Fm.
<br />SOM -45 -H1
<br />T13S, R9OW, Sec. 29, NE,SW
<br />7703 5
<br />280 -320.
<br />320.0
<br />Barren Mbr.
<br />Mesaverde Fm.
<br />SOM -45 -H2
<br />T13S, R9OW, Sec. 29, NE,SW
<br />7703.8
<br />160 -260
<br />260.0
<br />Barren Mbr.
<br />Mesa Verde Fm.
<br />SOM -23 -H4
<br />TI3S,R9OW, Sec. 33, NW, NW
<br />7518
<br />70 -220
<br />225
<br />Barren Mbr.
<br />Mesaverde Fm.
<br />Permit Area Wells completed in the F - Seam
<br />SOM -2 -H
<br />T13S, R9OW, Sec. 29, SE,NW
<br />7873.6
<br />711.3 -716.8 ft.*
<br />716.8
<br />F -Seam
<br />SOM -16 -H
<br />TI3S, R9OW, Sec. 28, SW,NW
<br />8029.6
<br />1025 -1034 ft *.
<br />1034.0
<br />F -Seam
<br />SOM C -76
<br />T13S, R9OW, Sec. 33, NW,NE
<br />7579.6
<br />444 -457 *.
<br />457.0
<br />F -Seam
<br />SOM- 23 -H -3
<br />TI3S,R9OW, Sec. 33, NW, NW
<br />7518
<br />217 -232*
<br />232
<br />F -Seam
<br />Permit Area Wells completed in the E - Seam
<br />96 -27 -1
<br />T13S, R90W, Sec. 27, NW,NE
<br />7871.5
<br />1270 -1290
<br />1320.0
<br />E -Seam
<br />03 -11 -I
<br />T13S, R9OW, Sec. I I, SE,SE
<br />6281
<br />240 -250
<br />250
<br />E -Seam
<br />SOM -3E
<br />TI3S, R90W, Sec. 34, SE,SE
<br />8051
<br />1015 -1035
<br />1035.0
<br />E -Seam
<br />SOM- 23 -H -2
<br />TI3S,R9OW, Sec. 33, NW, NW
<br />7518
<br />—356 -376
<br />376
<br />E -Seam
<br />Permit Area Wells completed above the E - Seam
<br />96 - 2 - 2
<br />TI4S, R9OW, Sec. 2, NE,NE
<br />7999.0
<br />1063 - 1083
<br />1540.0
<br />Above E - Seam
<br />Permit Area Wells completed in B - Seam
<br />SOM -129 -H
<br />TI3S, R9OW, Sec. 16, NE,NE
<br />6269.1
<br />334 -362
<br />365.0
<br />B -Seam
<br />So W -1
<br />T13S, R90W, Sec 29, NW,SW
<br />8020.0
<br />1320 -1380
<br />1380.0
<br />B -Seam
<br />RAV -4b
<br />T13S, R9OW, Sec. 15, SE,SW
<br />6687.0
<br />600 -625
<br />630.0
<br />B -Seam
<br />01 -1 I -1
<br />TI3S, R9OW, Sec. 11, SE,NE
<br />6281.3
<br />489 -499
<br />509.0
<br />B -Seam
<br />SOM -3B
<br />TI3S, R9OW, Sec. 34, SE,SE
<br />8051
<br />1294.5 -1315
<br />1415 0
<br />B -Seam
<br />SOM- 23 -H -1
<br />T13S,R9OW, Sec. 33, NW, NW
<br />7518
<br />587 -604*
<br />604
<br />B -Seam
<br />West Elk Mine 2011 Annual Hydrology Report
<br />Table 6. Summary of the Groundwater Monitoring Well Characteristics
<br />Shaded items — Wells with compromised, blocked, or collapsed casing
<br />June 2012
<br />35
<br />HydroGeo, Inc.
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