2008-11-10_REVISION - C1981022

• Permit No: C1981022
• IBM Index Class Name: REVISION
• Doc Date: 11/10/2008
• Doc Name: Preliminary Adequacy Review
• From: DRMS
• To: Oxbow Mining, LLC
• Type & Sequence: TR60
• Email Name: MLT
• 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]
10 November 2008
k
James A. Kiger u
Oxbow Mining, LLC
P.O. Box 535 Diu rinr: , . z ;
?e
Somerset, CO 81434
Re: Elk Creek Mine (Permit No. C-1981-022)
Technical Revision No. 60 (TR-60) - Bear Creek Fan Site
Preliminary Adequacy Review
Dear Mr. Kiger:
COLORADO
D IV IS I ON OF
RECLAMATION
MINING
SAFETY
Bill Ritter, Jr.
Governor
Harris D. Sherman
Executive Director
Ronald W. Cattany
Division Director
Natural Resource Trustee
On October 6, 2008, the Division received an application for TR-60 from Oxbow Mining,
LLC (OMLLC). The package was deemed Complete, for purposes of filing, on thelOth
of October. Proof of Publication later provided by OMLLC indicates that the public
notice appeared on October 15th in the Delta County Independent.
Over the course of the 10-day comment period, the Division received only two responses
to the notice: one from the Office of Archaeology and Historic Preservation (response
required), the other from the Division of Water Resources. Copies of both letters are
attached, for your reference.
The Division has completed its adequacy review of the TR-60 application. We have the
following comments and questions.
Rule 2.05.6(3) - Protection of the Hydrologic Balance
Please describe the fan shaft construction measures that Oxbow will employ to
prevent or minimize ground water flow seeping into the fan shaft.
2. Rule 2.05.6(3) requires that ground water quantity be protected from proposed
mining operations. Please propose a hydrologic monitoring program to determine
the occurrence and quantity of water that seeps into the fan shaft from the Bear
Creek alluvium.
3. The text at the beginning of Section 9 of the TR-60 submittal states that the entire
Bear Creek fan site is a small area exemption (SAE). However, the hydrology
designs presented in TR-60 designate only three portions of the disturbed area as
SAES. Other disturbed areas, such as the cut slopes and pad area, are not
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