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West Elk Mine 2016 Surface Water and Groundwater Quantity and Quality Data Summary 11
<br />Table 6. Summary of the Groundwater Monitoring Well Characteristics
<br />Monitoring Well
<br />Location
<br />Ground
<br />Elevation
<br />toc, ft.ft
<br />Screened
<br />Interval Depth
<br />Total Depth
<br />(ft)
<br />Formation of
<br />Completion
<br />Facility Area Wells and Alluvial Wells
<br />P-3 MW -8)
<br />T13S, R90W, Sec. 10, SW,SW
<br />6145.5
<br />25-30
<br />33.8
<br />Colluvium
<br />P-4 MW -9)
<br />T13S, R90W, Sec. 10, SW,SW
<br />6147.5
<br />25-30
<br />33.0
<br />Colluvium
<br />GP -6
<br />T13S, R90W, Sec. 10, SW,SW
<br />6204.8
<br />78-83
<br />83.0
<br />Alluvium
<br />(Syl. Gulch
<br />GP -7
<br />T13S, R90W, Sec. 15, SW,SW
<br />6205.7
<br />50-55
<br />55
<br />Alluvium
<br />(Syl. Gulch
<br />E-1
<br />T13S, R90W, Sec. 10, SW,SE
<br />6187.0
<br />n.a.
<br />30.0
<br />Colluvium
<br />E-7
<br />T13S, R90W, Sec. 10, SE,SW
<br />6116.3
<br />12-32
<br />32.0
<br />Colluvium
<br />Upper Dry Fork Alluvial
<br />T14S, R90W, Sec. 2, SW,NW
<br />8100
<br />24-29
<br />29
<br />Alluvium
<br />Lower Dry Fork Alluvial
<br />T13S, R90W, 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 />T13S, R90W, Sec. 21, NW,NE
<br />6854.4
<br />50-90
<br />142.5
<br />Barren Mbr.
<br />Mesa Verde Fm.
<br />OM -13
<br />T13S, R90W, Sec. 16, SW,NE
<br />6761.9
<br />124-188
<br />188.0
<br />Barren Mbr.
<br />Mesa Verde Fm.
<br />SOM-45-H2
<br />T13S, R90W, Sec. 29, NE,SW
<br />7703.5
<br />280-320
<br />320.0
<br />Barren Mbr.
<br />Mesaverde Fm.
<br />SOM-45-H1
<br />T13S, R90W, Sec. 29, NE,SW
<br />7703.8
<br />160-260
<br />260.0
<br />Barren Mbr.
<br />Mesa Verde Fm.
<br />OM -23-114
<br />T13S,R90W, 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, R90W, Sec. 29, SE,NW
<br />7873.6
<br />711.3-716.8*
<br />716.8
<br />F -Seam
<br />SOM-16-H
<br />T13S, R90W, Sec. 28, SW,NW
<br />8029.6
<br />1025-1034*
<br />1034.0
<br />F -Seam
<br />SOM C-76
<br />T13S, R90W, Sec. 33, NW,NE
<br />7579.6
<br />444-457*
<br />457.0
<br />F -Seam
<br />OM -23-H-3
<br />T13S,R90W, Sec. 33, NW, NW
<br />7518
<br />217-232*
<br />232
<br />F -Seam
<br />Permit Area Wells Completed in the E -Seam
<br />6-27-1
<br />T13S, R90W, Sec. 27, NW,NE
<br />7871.5
<br />1270-1290
<br />1320.0
<br />E -Seam
<br />3-11-1
<br />T13S, R90W, Sec. 11, SE,SE
<br />6281
<br />240-250
<br />250
<br />E -Seam
<br />OM -3E
<br />T13S, R90W, Sec. 34, SE,SE
<br />8051
<br />1015-1035
<br />1035.0
<br />E -Seam
<br />OM -23-H-2
<br />T13S,R90W, Sec. 33, NW, NW
<br />7518
<br />—356-376
<br />376
<br />E -Seam
<br />Permit Area Wells Completed above the E -Seam
<br />6-2-2
<br />T14S, R90W, Sec. 2, NE,NE
<br />1 7999.0
<br />1 1063-1083
<br />1540.0
<br />Above E -Seam
<br />Permit Area Wells Completed in B -Seam
<br />OM -129-H
<br />T13S, R90W, 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, R90W, Sec. 15, SE,SW
<br />6687.0
<br />600-625
<br />630.0
<br />B -Seam
<br />01-11-1
<br />T13S, R90W, Sec. 11, SE,NE
<br />6281.3
<br />489-499
<br />509.0
<br />B -Seam
<br />OM -3B
<br />T13S, R90W, Sec. 34, SE,SE
<br />8051
<br />1294.5-1315
<br />1415.0
<br />B -Seam
<br />SOM-23-H-1
<br />T13S,R90W, Sec. 33, NW, NW
<br />7518
<br />587-604
<br />604
<br />B -Seam
<br />Shaded cells indicate wells with compromised, blocked, or collapsed casing
<br />toc — top of casing
<br />June 2017 HydroGeo, Inc
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