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

Lower Minnesota Creek
Discharge and Gage Height
Dailv Mean Streamflow (cfs)
Day
Oct -15
Nov -15
Dec -15 Jan -16
Feb -16
Mar -16 Apr -16
May -16 Jun -16
Jul -16
Aug -16 Sep -16
1
3.7
4.7
5.5
2.7
ND
3.3
5.2
14.0
89.0
29.0
17.0
6.0
2
3.5
4.7
ND
2.5
ND
3.5
5.2
15.0
93.0
30.0
16.0
6.6
3
3.3
4.7
ND
2.2
ND
3.7
5.2
19.0
98.0
29.01
13.0
6.9
4
3.11
5.0
3.1
2.11
ND
3.71
5.51
21.0
100.0
26.0
17.0
6.9
5
3.0
5.2
2.7
20
ND
3.7
60
26.0
113.0
23.0
19.0
6.9
6
3.0
5.2
4.3
1.9
ND
3.7
6.0
32.0
125.0
21.0
200
6.6
7
3.0
5.2
5.7
1.8
3.5
3.7
6.0
41.0
1500
19.0
18.0
5.5
8
2.8
5.2
2.8
2.8
3.3
3.7
7.2
41.0
150.0
18.0
17.0
5.2
9
2.7
5.5
2.8
3.1
3.3
3.7
9.6
40.0
136.0
17.0
17.0
5.0
10
2.7
5.5
2.5
2.81
3.7
371
12.0
48.0
136.0
16.0
16.0
4.7
11
2.5
5.5
2.2
ND
5.0
3.7
11.0
56.0
128.0
17.0
16.0
4.5
12
2.5
5.5
2.0
4.1
4.7
3.7
11.0
52.0
131.0
17.0
17.0
4.5
13
2.5
8.1
2.2
3.3
3.7
3.7
13.0
52.0
131.0
18.0
16.0
4.3
14
2.4
10.0
ND
3.1
4.1
3.7
14.0
59.0
123.0
19.0
16.0
4.3
15
2.41
11.0
ND
2.8
3.3
3.7
13.0
100.0
104.0
17.0
15.0
4.1
16
2.2
9.6
ND
2.71
3.1
3.51
12.0
120.0
89.0
17.0
14.0
3.9
17
2.2
8.9
ND
2.41
3.1
3.5
10.0
128.0
80.0
17.0
14.0
3.7
18
2.2
8.1
ND
2.21
3.1
3.3
8.9
128.0
70.0
17.0
14.0
3.3
19
2.4
6.0
3.3
2.0
3.7
3.3
8.1
133.01
60.0
18.01
14.0
3.1
20
3.7
4.3
2.8
1.9
3.7
3.1
8.1
125.0
54.0
18.0
14.0
3.0
21
4.11
4.1
2.5
7.5
3.7
5.5
8.5
128.0
53.0
17.0
14.0
3.0
22
4.3
4.1
2.4
7.2
3.71
5.7
10.0
147.0
50.0
17.0
13.0
3.0
23
4.7
3.5
2.2
6.9
3.5
6.0
14.0
153.0
47.0
16.0
16.0
3.3
24
5.0
3.9
ND
3.1
3.5
6.0
16.0
136.0
41.0
16.0
17.0
3.9
25
4.7
2.8
ND
3.1
43
5.7
17.0
128.01
34.0
17.0
14.0
4.3
26
5.0
2.4
ND
ND
3.7
5.7
19.0
128.01
30.0
17.01
75
4.3
27
5.21
2.1
ND
5.51
3.5
5.51
18.0
123.01
23.0
19.0
6.6
4.3
28
5.2
2.0
ND
3.7
35
5.2
16.0
111.0
25.0
19.0
6.6
43
29
5.0
2.51
3.5
3.3
3.3
5.2
15.0
93.0
25.0
19.0
6.3
4.1
30
5.0
2.81
3.1
3.0
--
5.2
15.0
91.0
27.0
18.0
6.3
4.1
31
4.7
-
28
ND
5.2--
89.0
Mean 3.51 5.31 3.11 3.31 3.71 4.31 10.91 82.91 83.81 19.21 14.01 4.6
Min 2.21 2.01 2.0 1.8 3.1 3.1 5.21 14.01 23.01 16.01 6.0 3.0
Max 5.21 11.01 5.71 7.51 5.01 6.01 19.01 153.01 150.01 30.01 20.0 6.9
0.01 Stream Ice Affected or Frozen.
ND No Data. Datalogger Ice Affected.
Measured Streamflow
Date
Streamflow
(cfs)
10/20/2015
3.9
11/19/2015
4.5
12/9/2015
2.8
1/14/2016
3.9
2/16/2016
3.1
3/21/2016
50
5/2/2016
180
5/24/2016
133.0
6/27/2016
24.0
7/22/2016
17.0
8/23/2016
16.0
9/7/2016
5.2
West Elk Mine
A-2 2016 Annual Hydrology Report HydroGeo, Inc.