2011-10-06_REVISION - C1981012

• Permit No: C1981012
• IBM Index Class Name: REVISION
• Doc Date: 10/6/2011
• Doc Name: Adequacy Review Response
• From: DRMS
• To: J.E. Stover & Associates, Inc
• Type & Sequence: TR59
• Email Name: JDM
• Media Type: D
• Archive: No

DIVISION OF RECLAMATION, MINING AND SAFETY
Department of Natural Resources
1313 Sherman St., Room 215
Denver, Colorado 80203
Phone: [phone]
FAX: [phone]
October 6, 2011
Mr. J.E. Stover
J.E. Stover & Associates, Inc.
2352 North 7 Street, Unit B
Grand Junction, CO 81501
RE: New Elk Mine (Permit No. C- 1981 -012)
Technical Revision No. 59 (TR -59), Adequacy Review Response
Dear Mr. Stover,
Office of
Mined Land Reclamation
STATE OF COLORADO
COLORADO
D I V I S I O N O F
RECLAMATION
MINING
— &—
SAFETY
John Hickenlooper
Governor
Mike King
Executive Director
Loretta E. Pineda
Director
The Colorado Division of Reclamation, Mining, and Safety (Division) has reviewed New Elk Coal
Company's responses to the adequacy items which the Division identified in an adequacy e-mail sent
on September 28, 2011. The Division received New Elk's response to our comments on October 4,
2011. The Division's responses to New Elk Coal's comments concerning adequacy items identified by
the Division are below.
1. Division initial comment: Based on a review of the approved Map 13 in the PAP, the proposed
disturbance area runoff of the addition requested in TR59 is not delineated. Please have New
Elk discuss the manner in which the proposed disturbed area runoff will be collected and
treated.
New Elk Coal response: The C & W train shop, 10 stall garage and other associated structures
are located on the west side of the east mine sedimentation control system. The land slopes
approximate 2% from the C & W train shop to the east towards pond 7. Flow from this general
area will be collected in either ditch D -5 or D -6 and will be conveyed to sediment pond 7. The
fourth paragraph on page 2.05 -10 was inserted to explain this issue.
Division response: Based on the information on revised page 2.05 -10 submitted with the
New Elk Coal's adequacy response, approved Map 13, and the information on approved
Table 20 concerning ditches D -5 and D -6, the runoff from the proposed additional 6 acres
of disturbance will not reach ditch D -5 or D -6. The Division concurs that the proposed
area may slope approximately 2% to the east. However, it appears that any runoff
through the disturbed area would flow north and west, with the runoff at the extreme
western edge of the area possibly draining to the west.
It appears that, in order for runoff from the southernmost portion of the area to reach
ditch D -6, the runoff would be required to cross ditch D -7 which conveys undisturbed
area runoff or flow over the small area of road over culvert C -3. In addition, if it were
the case that all runoff from the area were to reach ditches D -5 and D -6, the runoff would
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