2009-05-11_REVISION - C1980004 ‎(2)‎

• Permit No: C1980004
• IBM Index Class Name: REVISION
• Doc Date: 5/11/2009
• Doc Name: Review & Responses
• From: DRMS
• To: J.E. Stover & Associates
• Type & Sequence: MT6
• Email Name: MPB
• Media Type: D
• Archive: No

STATE OF COLORADO
DIVISION OF RECLAMATION, MINING AND SAFETY
Department of !Natural Resources
1313 Sherman St., Room 215
Denver, Colorado 80203 C O L O R A D O
Phone: [phone] D r V 1 5 t O N FAX: [phone] RECLAMATIMINING
May 11, 2009 SAFETY
Bill Ritter, Jr.
J.E. Stover & Associates, Inc. Governor
2352 North 7th Street, Unit B Harris D. Sherman
Grand Junction, CO 81501 Executive Director
Ronald W. Cattany
Re: McClane Canyon Mining LLC (MCM) Division Director
Natural Resource Trustee
McClane Canyon Mine, Permit No. C-1980-004
Midterm Permit Review (MT-6) Responses
Dear Mr. Stover:
The Division of Reclamation, Mining and Safety has reviewed your letter dated April 15, 2009
regarding the midterm review reclamation bond estimate for the McClane Canyon Mine. In your
letter you posed four questions following your review of our updated reclamation cost estimate
prepared for MT-6. We have responded to each of these questions below.
1. The Division does not agree that the haul distance for Task 009, Place Three Feet of
Cover on Coal Mine Waste Pile, is overstated. In the Technical Revision 16 estimate as
well as the 2009 Midterm Review estimate, the Division used 1,000 feet for the haul
distance for this task. This haul distance is based on a probable haul route, based on
Figure 2.2-2, to move the material from the construction material stockpile to the coal
mine waste pile. While the centroid-to-centroid distance from the stockpile to the
waste pile may be closer to the 600 feet proposed by McClane, the Division does not
believe that the on the ground circumstances warrant this simple approach. The
steepness of the outslopes of the construction material stockpile (2.5:1) and the
steepness of the outslopes of the coal mine waste pile (3:1) will necessitate a longer
haul route, as the scrapers will not be able to travel directly up or down the outslopes of
either pile. As such, the Division has created a haul route that it feels is more realistic.
The haul distance of this route is 1,000 feet. The Division will leave task 009 as
estimated.
2. The Division agrees that, since the McClane to Munger haul road was removed from
the permit at an earlier date, Task 015, Rip McClane to Munger Haul Road, can be
removed. The Division has provided an updated copy of the cost estimate summary
sheet with task 015 removed. The indirect costs associated with Task 015 have also
been removed. Please replace the summary sheet in the McClane estimate with the
updated summary sheet (three pages, attached) and please remove the task sheet for
Task 015 from the McClane estimate.
3. The Division agrees that, since the McClane to Munger haul road was removed from
the permit at an earlier date, Task 040, Replace Topsoil from Stockpile to Road from
Office of Office of
Mined Land Reclamation Denver - Grand Junction - Durango Active and Inactive Mines