2014-07-11_REPORT - C1980007

• Permit No: C1980007
• IBM Index Class Name: Report
• Doc Date: 7/11/2014
• From: Hydro Geo, Inc
• To: DRMS
• Annual Report Year: 2013
• Permit Index Doc Type: Hydrology Report
• Email Name: JRS
• Email Name: DIH
• Media Type: D
• Archive: No

West Elk Mine 2013 Annual Hydrology Report 34
Table 7. Summary of the Groundwater Monitoring Program
Monitored Station
Monitored Area
Water Level
Measurement
Field WQ
(pH, EC, temp)
Annual Lab Water
Quality
Period of Record
Facilitoy Area Wells and Alluvial Wells
P -3 (MW -8)
Mine facility area
3 x Year
3 x Year
Low Flow Period
1985 to present
P -4 (MW -9)
Mine facility area
3 x Year
3 x Year
Low Flow Period("
1985 to present
P -6
Mine facility area
3 x Year
3 x Year
Low Flow Period
1997 to present
P -7
Mine facility area
3 x Year
3 x Year
Low Flow Period
1997 to present
PE -1
Mine facility area
3 x Year
3 x Year
Low Flow Period '
1996 to present
E -7
Mine facility area
3 x Year
3 x Year
Low Flow Period
1999 to present
Upper Dry Fork Alluvial
SOD mine panels area
3 x Year
3 x Year
Low Flow Period
10/03 to present
Lower Dry Fork Alluvial
SOD mine panels area
3 x Year
3 x Year
Low Flow Period ()10/03
to present
Wells commMleted in the Barren Member above F -Seam
SOM -80
NE mine panels area
3 x Year
3 x Year
Low Flow Period "'
1979 to present
O
-13
North of NE mine panels area
1979 to 2006
30M-45-HI
SW mine panels area
1979 to 2005
3OM -45 -H2
SW mine panels area
3 x Year
3 x Year
Low Flow Period "'
1979 to present
SO - 23 -H -4'
SOD mine panels area
3 x Year
3 x Year
Low Flow Period '
2005 to present
Wells completed in the F -Seam
SO
-2 -H
SW mine panels area
1981 to 2005
SO
-16 -H
SW mine panels area
1981 to 2005
SOM -C -76
SOD mine panels area
3 x Year
3 x Year
Low Flow Period
1978 to present
SO - 23 -H -3
SOD mine panels area
3 x Year
3 x Year
Low Flow Period '
2005 to 2011
Wells completed in the E -Seam
96-
7 -1
SE mine panels area
1996 to 2005
3 -11 -1
North of Box Canyon mine panels area
3 x Year
3 x Year
Low Flow Period
10/03 to present
SO -3E
SOD mine panels area
10/03 to 2011
SO - 23 -H -2
SOD mine panels area
2005 to 2008
Wells com feted above the E -Seam
6-
2
SOD mine pa nels area
1 3 x Year
1 3 x Year
Low Flow Period '
1996 to April
2012
Wells completed in —B -Seam
SO
-129 -H
North of NE mine panels area
3 x Year
3 x Year
Low Flow Period '
1993 to 2011
So.
-I
South of SW mine panels area
1996 to 2005
V -4B
Box Canyon mine panels area
3 x Year
3 x Year
Low Flow Period
1995 to present
1 -11 -1
North of Box Canyon mine panels are
3 x Year
3 x Year
Low Flow Period
2001 to present
SO -3B
SOD mine panels area
10/03 to 8/08
SO - 23 -H -1
SOD mine panels area
005 (suspect data
SW mine panels area — southwest B -seam longwall panels
SE mine panels area— southeast B -seam longwall panels
Box Canyon mine panels area — Box Canyon B -seam longwall panels
W. Flatiron mine panels area — West Flatiron B -seam longwall panels
Jumbo Mountain mine panels area — Jumbo Mountain B -seam longwall panels
SOD mine panels area — South of the Divide E -seam longwall panels
Shaded cells indicate wells with compromised, blocked, or collapsed casing.
" For sites with >5 years of data, lab parameters include TSS, TDS, EC, pH, and Fe (dissolved & total).
`' For sites with 5 years or less data, see Table 2.
" On May 1, 2013, the casing in Well SOM- 23 -H -4 was found to be collapsed at about 83 feet below ground surface. Future monitoring of
this well will not be possible.
June 2014 HydroGeo, Inc.