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 43
33. Water Quality in U
Upper Raven Gulch
Raven
Upper Raven Gulch
95
9.0
m 8.5
CI
8.0
10
N
S 7.5
CIL
u 7.0
LL
6.5
i
6.0
tt . . . tis; t . . -t -r:o�tt'
Date
—Baseline Max —Baseline Min tpH
Upper Raven Gulch
0.16 --._..
0.14
0.12
J
a' 0.1
E
c
0 0.08 -
v
� 0.06 -
6
H 0.04
D
0.02
I
0
3
—Baseline Max Diss. Iron Dace
Gulch
200
160
a 160
E
H 140
v
O 120
rn
y 100
I >
C
H 60
H
O 60
m
p 40
r
20
0
800
m
E 700
9
0 666
0
500
17
y 400
a
m
y 300
A
a 206
100
0
Upper Raven Gulch
350
--
300
-Baseline Max tTDS Date
N
250
200
t;
n7
c
-
U
150
--
-___ ---
00
v
W
50
0
—Baseline
Max
--w- EC
Dace
Upper Raven Gulch
95
9.0
m 8.5
CI
8.0
10
N
S 7.5
CIL
u 7.0
LL
6.5
i
6.0
tt . . . tis; t . . -t -r:o�tt'
Date
—Baseline Max —Baseline Min tpH
Upper Raven Gulch
0.16 --._..
0.14
0.12
J
a' 0.1
E
c
0 0.08 -
v
� 0.06 -
6
H 0.04
D
0.02
I
0
3
—Baseline Max Diss. Iron Dace
Gulch
200
160
a 160
E
H 140
v
O 120
rn
y 100
I >
C
H 60
H
O 60
m
p 40
r
20
0
800
m
E 700
9
0 666
0
500
17
y 400
a
m
y 300
A
a 206
100
0
Upper Raven Gulch
-Baseline Max tTDS Date
Upper Raven Gulch
—Baseline Max -*-TSS Date
Upper Raven Gulch I
Note: Baseline 2005 (CDRMS, 2005); baseline laboratory values recorded in May and June 2005 only, and baseline field values
for pH recorded in May, June and September 2005 only (HydroGeo, 2016b).
Not Detected (ND) values graphed as zero.
August 2016 HydroGeo, Inc.