2011-05-23_REPORT - C1981010

• Permit No: C1981010
• IBM Index Class Name: REPORT
• Doc Date: 5/23/2011
• Doc Name: Semi-Annual Geotechnical Monitoring Report ‎(March 2011)‎
• From: DRMS
• To: Trapper Mining, Inc
• Permit Index Doc Type: Stability Report
• Email Name: RDZ
• 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]
May 23, 2011
James Mattern
Trapper Mining, Inc.
P.O. Box 187
Craig, CO 81626
RE: Trapper Mining, Inc., Permit C-81-010
Semi-annual Geotechnical Monitoring Report (March 2011)
Dear Mr. Mattern:
COLORADO
D I V I S ION OF
RECLAMATION
MINING
SAFETY
John W. Hickenlooper
Governor
Mike King
Executive Director
Loretta E. Pineda
Director
The Colorado Division of Reclamation, Mining, and Safety (Division) has reviewed the Geotechnical
Monitoring Report (GMR) for the Trapper Mine that is dated March 31, 2011. It was received by the Division
on April 4, 2011.
The March 2011 GMR provided by Trapper Mining, Inc. is in general compliance with the requirements of
Permit C-1981-010. Measurements have been made in accordance with the seasonal schedule described in
Section 3.3.3 of the permit. Thank you for the timely submittal.
The Division has the following request in regard to the geotechnical monitoring system at Trapper Mine.
Starting with the next GMR (fall of 2011), please provide depths, in feet below the surface, for sensors at Station
5 and at your proposed station, Station 6.
If you have any questions feel free to contact me at [phone], ext. 8113.
Sincerely,
?v
Robert Zuber, P.E.
Environmental Protection Specialist
Office of Office of
Mined Land Reclamation Denver • Grand Junction • Durango Active and Inactive Mines