2014-03-31_REPORT - C1981010 (2)

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March 27, 2014 TRAPPER MINING INC. Mr. Jared Ebert Environmental Protection Specialist Colorado Division of Reclamation, Mining, and Safety 1313 Sherman Street, Room 215 Denver, CO 80203 PINK ) I [u 14 Dear Mr. Ebert: DIVISION OF RECLAMATION MINING AND SAFETY RE: Semi - annual Geotechnical Monitoring Report — March 2014 Trapper began submitting semi - annual monitoring reports to the Division, beginning March 2008 with the last report completed on September 25, 2013. Trapper has been monitoring the 2006 landslide area for movement through the use of a continuous monitoring system. Section 3.3.3 of Trapper's permit details the initial configuration of the monitoring system. Currently, there are two sites (site 7 and site 8) that are monitoring the area. A map has been attached showing the location of these sites. Displacement graphs for both sites covering the time period of September 26, 2013 through March 27, 2014 are attached. Site 7 shows a small amount of movement and site 8 shows a little more movement. This movement could be caused by the winter freeze /thaw conditions and the mine progressing toward the east, opening up new endwalls and highwalls in the vicinity of these sites. The server that supports the slope monitoring system quit working around October 31, 2013. When it was restarted the displacement data for both sites had spiked. After several days of trying to trouble shoot how to get the data back to the previous values, it was decided to reset the baselines. This is shown in the two GPS graphs as the values went to zero. Trapper is currently in the process of upgrading the system. This upgrade should minimize the problems concerning spiked data and data not going back to the original values after a server reboot or power outage. Inclinometer and piezometer graphs for site 8 have also been attached. The inclinometer located around the R seam changed considerably around October 8, 2013. The data for the seams other than the R seam showed consistent movement since their installations. The movement in the R seam inclinometer, was not as consistent as the other inclinometer movements, and did not show as much movement as planned. There was a parting blast to the R seam on the east side of K strike pit, cut 10 during this time. It is believed this shot caused this inclinometer hole to correct itself and the tension on the R seam inclinometer finally caused the significant movement. The R seam inclinometer shows more movement from January 2014 to the present. This movement is probably caused by opening up the new endwalls and highwalls located near this inclinometer hole. Around November 1, 2013 the piezometer located in the L seam at site 8 quit transmitting data. There was a parting blast to the R seam in L dip pit, cut 1 during this time. It is assumed this shot somehow compromised the piezometer. Data will no longer be available from this piezometer. Please contact me if you have any questions. Sincerely, Tonia Perkins, P. E. Senior Mining Engineer P.O. Box 187 Craig, Colorado 81626 (970) 824 -4401