2008-07-23_REVISION - C1996083 ‎(2)‎

• Permit No: C1996083
• IBM Index Class Name: REVISION
• Doc Date: 7/23/2008
• Doc Name: Adequacy Review Letter
• From: DRMS
• To: Bowie Resources LLC
• Type & Sequence: TR54
• Email Name: JJD
• 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]
July 23, 2008
COLORADO
D IV IS I ON OF
RECLAMATION
MINING
SAFETY
Bill Ritter, Jr.
Governor
Mr. William A. Bear Harris D. Sherman
Bowie Resources LLC Executive Director
P.O. Box 483 Ronald W. Cattany
Paonia, Colorado 81428 Division Director
Natural Resource Trustee
RE: Bowie No. 2 Mine, Permit No. C-96-083, Bowie Resources LLC
Technical Revision No. 54, Mine Water Discharge, Adequacy Review
Dear Mr. Bear:
The Colorado Division of Reclamation, Mining and Safety (Division) has finished its adequacy review of
Bowie Resources LLC's (BRL) submittal of Technical Revision No. 54 (TR-54) for the Bowie No. 2 Mine.
The following are the Division's questions and comments:
Section 2.05.3, Operation Plan - Permit Area
Please depict the proposed route, buried and above ground, and the outfall location of the mine
water discharge pipe on Maps Nos. 15-1 and 21-1.
Section 2.05.6, Mitigation of the Impacts of Mining Operations
2. Please ensure that there is erosion protection at the mine water discharge pipe outlet. If riprap is to
be used, please designate this on Maps Nos. 15-1 and 21-1.
Please demonstrate that the State Highway 133 ditch and culvert which will receive the mine water
discharge can handle the increase in flow proposed in TR-54. Also, please provide documentation
that CDOT approves of the proposed increase in flow in the State Highway 133 ditch and culvert.
4. Please add a discussion to the permit application text that describes whether or not there are any
lands, river banks, structures, alluvial valley floors or prime farm land on either side of State
Highway 133 that potentially may be adversely affected by the mine water discharge quantity or
quality. If so, how will BRL mitigate such potential effects. Please include in your discussion the
possibility of additional sediment entering the North Fork of the Gunnison River due to erosion.
5. The Division understands that BRL is in the process of applying for a revision to the NPDES
permit to change the location and the rate of flow for the mine water discharge point 006 as
described in TR-54. Please provide a copy of the revised NPDES permit when it is obtained.
6. On proposed page 2.05-69, the water analyses presented were based on water that came from the
B-8 panel headgate. The Division would like to know if the water sample was taken before or after
the water entered the underground sump. If the sample was taken before the water entered the
underground sump, please explain why BRL believes that there would not be any difference in the
water quality of the sample if it had been sampled after it had entered the underground sump.
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