2009-05-11_REVISION - C1980004

• Permit No: C1980004
• IBM Index Class Name: REVISION
• Doc Date: 5/11/2009
• Doc Name: Memo Regarding Review of Cost Estimate
• From: Jim Stark
• To: Mike Boulay
• 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
Phone: [phone]
FAX: [phone]
INTEROFFICE
MEMORANDUM
TO: Mike Boulay
FROM:
SUBJECT:
DATE:
Jim Stark
COLORADO
D I V I S I ON OF
RECLAMATION
MINING
SAFETY
Bill Ritter, Jr.
Governor
Harris D. Sherman
Executive Director
Ronald W. Cattany
Division Director
Natural Resource Trustee
McClane Canyon 2009 Midterm Review Estimate Questions from Stover
11 May 2009
As requested I reviewed the 2009 Midterm Review reclamation cost estimate based on
the four questions posited by Jim Stover in his 15 April 2009 response. I have responded
to each of these questions below. The summary of my review is that the Division agrees
with Stover's questions 2 and 3, and will remove those tasks from the estimate (it was
determined that these tasks could be removed from the estimate since the referenced road
was removed at an earlier date), but does not agree with questions 1 and 4, and will leave
those tasks as estimated. Based on the Divisions review of the aforementioned letter, the
estimate has been updated.
I have attached a new summary sheet (three pages) with tasks 015 and 040 removed
(Stover's questions 2 and 3, respectively). These tasks pertain to the McClane to Munger
haul road which was been removed from the permit at an earlier date. Tasks 009 and 041
have not been updated (Stover's questions 1 and 4, respectively). In your copy of the
estimate you can replace the summary sheet and remove and discard tasks 015 and 040.
Following these changes the new liability for the McClane Canyon Mine is $367,256.00.
This amount is $47,976.00 more than the current bond held (of $319,280.00). McClane
will need to submit a minimum of $47,976.00 in additional bond monies.
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
Office of Office of
Mined Land Reclamation Denver • Grand Junction • Durango Active and Inactive Mines