2016-12-01_PERMIT FILE - C1980007 ‎(6)‎

• Permit No: C1980007
• IBM Index Class Name: Permit File
• Doc Date: 12/1/2016
• Doc Name: Hydrologic Characterization of the South of the Divide
• Section_Exhibit Name: Exhibit 71
• Media Type: D
• Archive: No

2016 Recommended Modifications to the West Elk Mine Hydrologic Monitoring Network 37
29
Water Quality in Lower Gribble Gulch
Lower Gribble Gulch
1,400 T -
E 1 200 —
N
1 o0o
800 _..._
v
c
U 600
f0
400
U
d
W 200
0
—Baseline -a-EC n..o
90
8.5
Lower Gribble Gulch
65
600
Lower Gribble Gulch
J
500 ___
IM
E
v 400
N
y 300
N
MA 200
12 100
—Baseline Max -+-TDS Date
Lower Gribble Gulch
100
J 90
rn
E 80
m
� 70
O
u] 60
v
v 50
c
w
�
40
H 30
F 20
10
i
6.0 1- p
—Baseline (lab) -i-pH Date --o-TSS Date
Lower Gribble Gulch
4.5
4
3.5
3
w
E 2.5
2
1.5-
F
1
0.5
0
—BasNine Max Tet. i— Dade
Note: Baseline pre -2000 data, adapted from WWE (2001). There are no baseline field pH, TSS or dissolved iron data.
Not Detected (ND) values graphed as zero.
August 2016 HydroGeo, Inc.
Lower Gribble Gulch
0.5
045
I,
l
04
I
J
of
E
0.35
03
c
O
0.25
02
015
N
m
01
O
005
0
i i
s
-a-Diss. Iron Date
Lower Gribble Gulch
4.5
4
3.5
3
w
E 2.5
2
1.5-
F
1
0.5
0
—BasNine Max Tet. i— Dade
Note: Baseline pre -2000 data, adapted from WWE (2001). There are no baseline field pH, TSS or dissolved iron data.
Not Detected (ND) values graphed as zero.
August 2016 HydroGeo, Inc.
I,
l
I
Lower Gribble Gulch
4.5
4
3.5
3
w
E 2.5
2
1.5-
F
1
0.5
0
—BasNine Max Tet. i— Dade
Note: Baseline pre -2000 data, adapted from WWE (2001). There are no baseline field pH, TSS or dissolved iron data.
Not Detected (ND) values graphed as zero.
August 2016 HydroGeo, Inc.