2017-07-11_REPORT - C1980007

• Permit No: C1980007
• IBM Index Class Name: Report
• Doc Date: 7/11/2017
• Doc Name: Annual Hydrology Report
• From: Mountain Coal Company, LLC
• To: DRMS
• Annual Report Year: 2016
• Permit Index Doc Type: Hydrology Report
• Email Name: LDS
• Email Name: JRS
• Media Type: D
• Archive: No

West Elk Mine 2016 Surface Water and Groundwater Quantity and Quality Data Summary 8
Table S. Summary of the Spring and Seep Monitoring Program
June 2017
HydroGeo, Inc.
Flow
I Field WQ I
Annual Lab
Period of
Monitoring Station
Monitored Area
Measurement
(pH, EC, T)l
WaterQuality
Record
Springs above the F -seam in the North Fork of the Gunnison River Drainage Basin
W Flatiron Drainage, down -
Spring 24-3
gradient of the Box Canyon
3 x Year
3 x Year
Peak Flow Period(')
1998 to present
and West Flatiron mine panels
area
W. Flatiron Drainage, down -
E -13-1
gradient of the Box Canyon
3 x Year
3 x Year
Peak Flow Period (2)
2003 to present
and West Flatiron panels area
W Flatiron Drainage; down -
E -13-2
gradient of the Box Canyon
3 x Year
3 x Year
Peak Flow Period (2)
2003 to present
and West Flatiron panels area
W Flatiron Drainage, down -
E -13-3
gradient of the Box Canyon
3 x Year
3 x Year
Peak Flow Period (2)
2003 to present
and West Flatiron panels area
W Flatiron Drainage; down -
E -13-4
gradient of the Box Canyon
3 x Year
3 x Year
Peak Flow Period (2)
2003 to present
and West Flatiron panels area
Spring 26-1
Deep CreekSE mine panels
3 x Year
3 x Year
Peak Flow Period (1)
1996 to present
Spring E14-13
Upper Box Canyon, Box
3 x Year
3 x Year
Peak Flow Period
1998 to 2006
Canyon panels area
Spring 27-1 (two ponds)
Upper Syl Gulch, SE mine
3 x Year
3 x Year
Peak Flow Period()
1996 to present
panels area
Spring G-7
Upper Syl Gulch, NE and SW
3 x Year
3 x Year
Peak Flow Period(')
1977 to present
mine panels areas
Spring G-16
Syl Gulch, east of NE mine
3 x Year
3 x Year
Peak Flow Period()
1979 to present
panels area
Spring G-24 (decreed spring #8)
Syl. Gulch, east of NE mine
3 x Year
3 x Year
Peak Flow Period Ill
1979 to present
panels area
Spring G-14 (decreed spring #7)
Syl Gulch, east of NE mine
3 x Year
3 x Year
Peak Flow Period 111
1977 to present
anels area
Spring G-22 (decreed spring #3)
Syl Gulch, north of NE mine
Is area
3 x Year
3 x Year
Peak Flow Period (1)
1977 to present
Spring 35-3
U. Deep Creek east of SOD
3 x Year
3 x Year
Peak Flow Period t�1
2006 to present
mine panels area
96-2-2 Area Spring
U Deep Creek SOD mine
3 x Year
3 x Year
Peak Flow Period (1)
2007 to present
panels area
Deep Creek Spring 2
U Deep Creek, SOD mine
3 x Year
3 x Year
Peak Flow Period (l
2007 to present
panels area
U Deep Creek, south of SE
Deep Creek Trail Spring
mine panels area and east of
3 x Year
3 x Year
Peak Flow Period �'�
2007 to present
SOD mine panels area
U Deep Creek, south of SE
Spring 2012-1
mine panels area and east of
3 x Year
3 x Year
Peak Flow Period �2)
2013 to present
SOD mine panels area
U Deep Creek south of SE
Spring 2012-2
mine panels area and east of
3 x Year
3 x Year
Peak Flow Period �2)
2013 to present
SOD mine panels area
U Deep Creek south of SE
Spring 2012-3
mine panels area and east of
3 x Year
3 x Year
Peak Flow Period �2)
2013 to present
SOD mine panels area
U Deep Creek, south of SE
Spring 2012-4
mine panels area and east of
3 x Year
3 x Year
Peak Flow Period �2)
2013 to present
SOD mine Danels area
June 2017
HydroGeo, Inc.