2010-12-27_REVISION - C1981019 ‎(12)‎

• Permit No: C1981019
• IBM Index Class Name: REVISION
• Doc Date: 12/27/2010
• Doc Name: 3rd Completeness Review
• From: DRMS
• To: Colowyo Coal Company
• Type & Sequence: PR3
• Email Name: JHB
• Media Type: D
• Archive: No

wildlife component of the post- mining land use and has provided reference to
supporting maps and exhibits.
Rule 2.05.6(2) — Mitigation of Impacts of Mining Operations, Fish and Wildlife Plan
17. This item is considered complete. Colowyo has provided updated permit pages
Collom -Rule 2, pages 121 -125. These pages include information regarding the listing
of greater sage grouse as a candidate species. Colowyo has also included Map 46 —
Collom Area Reclamation Plan Map, which shows reclamation areas that will be
targeted grassland or sagebrush steppe areas.
Rule 2.06.8 — Operations on Alluvial Valley Floors
18. This item is considered complete (8 April 2010). Colowyo has provided a discussion
of the mass - wasting event that occurred along the Wilson Creek. The Division will
address further concerns during the technical adequacy phase.
Rule 3.02.2 — Determination of Bond Amount
19. This item will be evaluated during the adequacy review. Colowyo has not provided a
reclamation cost estimate for the Collom area. The Division recognizes case this is
not a completeness issue given the inevitable changes to the submittal. A detailed
reclamation cost estimate will need to be submitted as the adequacy phase of the
review draws to a close and all major on- the - ground issues that would affect the
estimate have been resolved. There are several maps associated with the reclamation
cost estimate that will need to be included with the submittal of the estimate. These
maps are Map 35C -Bond Calculation Map Worst Case Topography, Map 36B -Bond
Calculation Map Regraded Topography and Map 40B -Bond Calculation Cross
Sections. None of these were included in the PR -03 application.
Rule 4.05.2 — Water Quality Standards and Effluent Limitations
20. This item is considered complete. Colowyo has provided additional text regarding
the sediment control of topsoil stockpiles outside of the sediment control system on
page Collom -Rule 4, page 5. Additionally, Colowyo has provided information
regarding the ring ditches, including SEDCAD analyses, in Exhibit 7, Item 23, Part E.
Rule 4.05.3 — Diversions and Conveyances of Less than One Square Mile
21. This item is considered complete. Colowyo has provided design information,
including a design map and channel profiles, for the proposed temporary ditches.
These designs are located in Exhibit 7, Item 23, Part E.
22. This item is considered complete. Colowyo has changed the status of numerous
drainages from "permanent" to "temporary" on Map 41B. These "temporary"
Colowyo Mine C -1981 -019 page 4 of 7
Permit Revision 03 — Collom Permit Expansion
8 April 2010