2009-01-07_REVISION - C1996083 ‎(4)‎

• Permit No: C1996083
• IBM Index Class Name: REVISION
• Doc Date: 1/7/2009
• Doc Name: Review Letter Memo
• From: Mike Boulay
• To: Joe Dudsh
• Type & Sequence: TR57
• 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 COLORADO

Phone: [phone]

INTEROFFICE MEMORANDUM DIVISION OF
RECLAMATION
FAX: [phone] MINING

SAFETY
TO: Joe Dudash Bill Ritter, Jr.
Governor

FROM: ??
Mike Boula
10 Harris D. Sherman
y A
3 Executive Director
Ronald W. Cattany
DATE: January 7, 2009 Division Director
Natural Resource Trustee
SUBJECT: Bowie No. 2 Mine, Permit No. C-96-083, Technical Revision No. 57
As requested, I have reviewed Bowie Resources, LLC's TR-57 application regarding the
discharge of water to the old U.S. Steel underground workings. The proposed revision would allow
mine water inflow to be pumped from the active B-Seam workings to the abandoned U.S. Steel
workings.
Rule 4.05.16 Discharge of Water into an Underground Mine applies to this application and BRL
provides a direct response to each of the requirements of this rule in revised section 2.05.6(3)
Probable Hydrologic Consequences (PHC). I have the following comments and questions with
regard to Items 1, 2, 3, and 4 on page 2.05-74 that correspond to Rules 4.05.16(1) through
4.05.16(4), respectively.
1. BRL has adequately described the location of the borehole and wellhead configuration in
the approval request letter to MSHA which would be incorporated into the PAP as Volume
IIIA Tab 14, upon approval of TR-57. The precise location for the borehole is described in
the MSHA letter but not in the amended permit pages. Please add a brief discussion to the
bottom of page 2.05-73 describing the sump, borehole and discharge location and add these
locations to a map prepared in accordance with the standards of Rule 2.10.
2. In Item 1 on page 2.05-74 BRL states that the North Fork of the Gunnison River will
eventually receive water that is discharged into the old U.S. Steel Mine and the flow from
the mine will primarily enter the river through outcrop seepage. Rule 4.05.16 (3) requires
that in the case of underground mining activities, the discharge continue as a controlled and
identifiable flow and ultimately be treated by an existing treatment facility. Since flow from
the mine will enter the river through outcrop seepage, BRL should provide an update to the
PHC with an estimated volume and rate of discharge through the outcrop and describe any
potential impacts to the hydrologic balance as a result of the mine water seepage. Please
update the PHC with the formation/outcrop that the water is expected to discharge through,
estimated seepage velocity and volume of discharge, and provide an approximate location
and elevation relative to the North Fork of the Gunnison River that discharge is expected to
occur. The map should be prepared in accordance with Rule 2.10.
Office of Office of
Mined Land Reclamation Denver • Grand function • Durango Active and Inactive Mines