2018-03-14_REVISION - C1981019

• Permit No: C1981019
• IBM Index Class Name: Revision
• Doc Date: 3/14/2018
• Doc Name: Adequacy Review #2
• From: DRMS
• To: Colowyo Coal Company, LLC
• Type & Sequence: TR118
• Email Name: ZTT
• Media Type: D
• Archive: No

Exhibit 13C Cumulative Bond 5chedual Reclamation Cost Estimate
New Task #
Description of Change
Former Task #
1
Added new Ditch D2 Culvert to 36"
N/A
2
Added concrete pads 1 and 2, and communications building.
N/A
3
No changes
3
4
Tasks broken out from previous RCE. Increase volume 15,000 cu. yrd.
Incorporated haulage/regrade.
4,5
5
4, 5
7
Tasks broken out from previous RCE. Incorporated haulage/regrade. No changes.
7
8
7
9
7
10
7
11
7
12
7
13
7
14
No changes. Task broken out from previous RCE.
28
15
Increase in total volume 241,000 cu. yrd.
9
16
Increase in total volume 80,000 cu. yrd. Incorporated haulage/regrade.
10
17
No changes.
11
18
12
19
13
20
14
21
15
22
16
23
17
24
18
25
Combined Upper and Lower to D1. Decrease volume 4,806 cu. yrd.
19,20
26
Increase in total volume 4,810 cu. yrd.
21
27
28
No changes.
22
23
29
Increase in total volume 3,991 cu. yrd.
24
30
New task. Added Ditch D6.
N/A
31
Tasks broken out from previous RCE. Combined Upper and Lower to D1. Decrease
volume 1,082 cu. yrd.
25
32
Tasks broken out from previous RCE. Increase in total volume 2,105 cu. yrd.
25
33
Tasks broken out from previous RCE. No changes.
25
34
25
35
25
36
New task. Added Ditch D6.
N/A
37
New tasks. Added access roads.
N/A
38
N/A
39
N/A
40
N/A
41
N/A
42
N/A
43
New task. Added access roads.
N/A