2018-08-30_GENERAL DOCUMENTS - C1981019

• Permit No: C1981019
• IBM Index Class Name: General Documents
• Doc Date: 8/30/2018
• Doc Name: Proposed Decision and Findings of Compliance
• From: DRMS
• To: Colowyo Coal Company
• Permit Index Doc Type: Findings
• Email Name: ZTT
• Media Type: D
• Archive: No

lies partially in Rio Blanco County. In the South Taylor Pit, 17 scam and sub -seam complexes
are be mined. The seams are the A, B, C, D, E, F and G seams and their seam complexes (for
example, the G -Seam is separated into G7, G8 and G9 in the South Taylor Area). At the peak of
operations, the South Taylor Pit will be nearly 4,000 feet wide, 6,000 feet long, and 550 feet
deep. Pit progression is from east to west. Projected life of the South Taylor Pit is estimated to
be until 2021 as per the currently approved Map 23A, not including potential highwall mining,
which could prolong this schedule. Reclamation in the South Taylor Pit is expected to conclude
in 2029.
In 2017, construction began for the Collom Pit expansion approved with PR -04. Current
activities are limited to all activities outlined in Exhibit 13C — Collom Cumulative Bond
Schedule.
Permit, Performance Bond, and Bond Release History
The permanent program mining permit was issued on November 4, 1982. Seven successive
permit renewals have been approved subsequent to the initial permanent program permit
approval; the most recent, Permit Renewal No. 7, was issued August 14, 2018, for a permit term
that will expire November 5, 2022. The Division currently holds a reclamation bond, in the form
of a self -bond, in the amount of $108,025,721.00.
Colowyo has applied for twelve previous bond releases:
Previous Bond Release Summary
Bond Release
Phase
Submittal
Date
Approval Date
SL -01
I and 11
7/2/1987
10/8/1987
SL -02
1
9/25/1997
4/27/1998
SL -03
II
9/26/2000
8/15/2001
SL -04
I and 11
6/1/2010
7/25/2001
SL -05
III
6/28/2010
7/25/2012
SL -06
I
4/26/2012
4/9/2013
SL -07
I
4/2/2013
8/29/2013
SL -08
I
5/20/2015
1/7/2016
SL -09
I
2/29/2016
9/28/2016
SL -10
111
7/18/2016
1/12/2017
SL -11
I
3/10/2017
11/13/2017
SL -12
II and III
3/10/2017
12/7/2017
See Map 1 in the SL -13 application for the locations of the previous Phase I Bond Releases at the
Colowyo Mine. See Table 1 in this document for the previous bond release acreages and Table 2 in
Proposed Decision and Findings of Compliance August 30, 2018
Partial Phase I Bond Release SL -13 Page 3