2013-11-14_REVISION - C1996083

• Permit No: C1996083
• IBM Index Class Name: Revision
• Doc Date: 11/14/2013
• Doc Name: Adequacy Review Letter
• From: DRMS
• To: Bowies Resource, LLC
• Type & Sequence: MR144
• Email Name: SLB
• Email Name: SB1
• 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]
November 14, 2013
William A. Bear
Bowie Resources, LLC
P.O. Box 483
Paonia, CO 81428
Re: Bowie No. 2 Mine (Permit No. C- 1996 -083)
Minor Revision No. 144 (MR- 144)
Gob Pile Temporary Drain Pipes
Dear Mr. Bear:
COLORADO
ID I V I S I O N O F
RECLAMATION
MINING
SAFETY
John W. Hickenlooper
Governor
Mike King
Executive Director
Loretta E. Pineda
Director
The Division has completed a preliminary adequacy review of the minor revision application (MR -144)
submitted by Bowie Resources, LLC (BRL) for the Bowie No. 2 Mine. The revision proposes the use of
temporary drain pipes on the gob piles. We have the following comments regarding the application.
1. Revised page 12 of Volume IX and revised page 4a of Volume XI include discussions of gob material
handling, such as end - dumping in a designated area and mixing with coverfill material. Please revise
page 12 of Volume IX, consistent with page 4a of Volume Xl, to indicate that the maximum
amount of end - dumped, un- compacted material between the two gob piles will be 200,000 cy.
2. Page 4a of Volume XI includes a new statement that additional bond money will be provided to the
Division if the amount of un- compacted gob exceeds 200,000 cy. The purpose of the 200,000 cy
limit is two -fold: as indicated, the reclamation cost estimate is based on this maximum; additionally,
this limit approximates the amount of refuse generated quarterly over the last year. Accumulation
in excess of this 200,000 cy limit suggests that compaction is not contemporaneous with placement
in the fill, as required by Rules 4.09.1(7), 4.10.1(1)(b), and 4.10.1(3) to ensure stability and prevent
spontaneous combustion. As such, the Division cannot approve any plan that would allow gob
material to remain end - dumped and un- compacted longer than 90 days. Please revise page 4a to
remove the last sentence of the fourth paragraph.
3. Page 12 of Volume IX and Page 4a of Volume XI include provisions (new to page 12) for mixing gob
material with available coverfill as needed to expedite material drying. As previously mentioned to
BRL, the Division is concerned that the amount of cover material currently available is less than what
would be required to adequately cover all three open refuse areas. We previously requested a
detailed material balance in our review of Technical Revision No. 77, and it is our understanding that
BRL is preparing the requested balance. Presumably, the material balance for Gob Pile #2 will be
presented in Appendix A of Volume IX. Under Technical Revision No. 77, the Division will require
BRL to maintain an adequate reserve of cover material for all open gob piles at all times. As such,
the language on pages 12 and 4a needs to reflect that mixing of coverfill material will be limited by
the availability of cover material.
a. Please revise the first paragraph of page 12 of Volume IX to add a sentence referencing the
material balance in Appendix A of Volume IX, indicating that mixing of coverfill material with
Office of Office of
Mined Land Reclamation Denver • Grand Junction • Durango Active and Inactive Mines