2011-10-19_REVISION - C1981012

• Permit No: C1981012
• IBM Index Class Name: REVISION
• Doc Date: 10/19/2011
• Doc Name: Adequacy Response No. 2
• From: J.E. Stover & Associates, Inc
• To: DRMS
• Type & Sequence: TR59
• Email Name: JDM
• Media Type: D
• Archive: No

MINE ENGINEERING
MINE RECLAMATION
October 18, 2011
Dear Mr. Musick:
J. E. STOVER & ASSOCIATES, INC.
2352 NORTH 7 STREET, UNIT B
GRAND JUNCTION, COLORADO 81501
PHONE: [phone], FAX [phone]
Jason Musick
Division of Reclamation, Mining and Safety
1313 Sherman St., Room 215
Denver, CO 80203
Re: New Elk Mine Permit C- 1981 -012
Technical Revision No. 59 NOV CV- 2011 -003
Adequacy Response #2
RECE VED
Djvisiun �,rnation,
Mining and Safety
CIVIL ENGINEERING
CONST. MANAGEMENT
The DRMS' letter dated October 6, 2011 transmitted its second adequacy response for the referenced
technical revision. On behalf of New Elk Coal Company (NECC) following are its responses to the
DRMS' comments and concerns.
1. DRMS - 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.
NECC - 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 forth 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 runofffrom
the area were to reach ditches D -5 and D -6, the runoff would be required to flow over the small
section of road (and be contained on the road surface) over culvert C -3.
The Division believes that it would be unlikely that all surface runoff will flow into ditches D -5
and D -6. The western most portion of the area behind and around the buildings is of particular