2008-05-22_REVISION - M1977493

• Permit No: M1977493
• IBM Index Class Name: REVISION
• Doc Date: 5/22/2008
• Doc Name: Review of TR-15
• From: DRMS
• To: Climax Molybdenum Company
• Type & Sequence: TR15
• Email Name: ACS
• Media Type: D
• Archive: No

STATE OF COLOMDO
DIVISION OF RECLAMATION, MINING AND SAFETY
Department of Natural Resources
1313 Sherman St., Room 215
Denver, Colorado 80203 COLORADO

Phone: [phone] D I V I S I O N O F

FAX: [phone] RECLAMATION
MINING

SAFETY

May 22, 2008 c/ Bill Ritter, Jr.
Governor
Mr. Ken Kloska Harris D. Sherman
Climax Molybdenum Company Executive Director

Climax, CO 80429 Ronald W. Cattany
/ Division Director
Natural Resource Trustee
RE: Review of Technical Revision TR-15, Climax Mine, Permit No. M-1977-493
Dear Mr. Kloska:
The Division of Reclamation, Mining, and Safety (DRMS) has reviewed the application for TR-15, and has identified
the following issues to be addressed prior to approval.
1. It is stated in section 3.3 of the TR-15 application native soil excavated from Robinson Lake will be hauled to
and stockpiled on 1-Dam crest for later use in reclamation. The DRMS is supportive of this aspect of the
plan; use of native soil excavated from Oxide Pond during the Eagle Park Reservoir project has benefited
reclamation along the Highway 91 frontage. However, DRMS will require sampling and analysis for metals
and agronomic properties prior to deployment of the materials from the 1-Dam stockpile, and may limit the
locations for use of this material depending on the results. Metals analysis, at a minimum, must include lead,
manganese, zinc, copper, cadmium, and total metals digestion. Also, if the soil remains in stockpile in
October 2008, DRMS will require that it be seeded prior to the end of the month.
2. Section 3.5 of the TR-15 application states that areas to be revegetated following the completion of the
project will be seeded with perennial rye. This type of seeding is suitable for areas requiring interim
stabilization and that will be redisturbed in the near term for some other pending project, such as the stockpile
discussed in item no. 1 above, but is not suitable for areas to be revegetated over the longer term. Please
provide a rationale for seeding with rye only, or commit to seeding with the Climax seed mix that is approved
in the permit at the time that the seeding occurs.
The decision date for TR-15 is June 18, 2008. Please respond to the issues listed above sufficiently in advance of the
decision date to allow time for DRMS review. DRMS can approve or conditionally approve TR-15 prior to the
decision date once the above listed issues are satisfactorily addressed. If you have any questions, please contact me at
303-8664063 or by email at allen.sorenson(a)state.co.us.
Sincerely.;
1 Ien C. Sorenson
Reclamation Specialist
cc: Gary Slifka, Climax Mine, via email
c:\acs files\My Documents 4-19-06 thru\climax trl5 review.doc
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