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2009-04-02_REPORT - C1981010
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2009-04-02_REPORT - C1981010
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Last modified
8/24/2016 3:45:08 PM
Creation date
4/2/2009 2:34:58 PM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1981010
IBM Index Class Name
REPORT
Doc Date
4/2/2009
Doc Name
March 2009 Semi-Annual Geotechnical Monitoring Report
From
Trapper Mining Inc
To
DRMS
Permit Index Doc Type
Stability Report
Email Name
JDM
Media Type
D
Archive
No
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fBAPPBR MINING INC. <br />RECEIVED <br />AFAR 0 2 2009 <br />March 30, 2009 Division of Reclamation, <br />Mining and Safety <br />Mr. Jason Musick <br />Environmental Protection Specialist <br />Colorado Division of Reclamation, Mining and Safety <br />1313 Sherman Street, Room 215 <br />Denver, CO 80203 <br />Dear Mr. Musick: <br />Re: Semi-annual Geotechnical Monitoring Report -March 2009 <br />Trapper is monitoring assorted benchmarks, inclinometers and piezometers that have <br />been installed to evaluate the landslide area. In accordance with the reporting <br />requirements approved in TR-99, Trapper is submitting a monitoring report that shows <br />results to date. During much of the reporting period many of the sites were inaccessible <br />due to winter conditions. <br />Attached you will find three categories of data. The first category shows (graphically) <br />deflection readings in the two inclinometers (07-GI2 and 07-GX6). Multiple readings for <br />each inclinometer are shown with corresponding dates listed on the right hand side of <br />each graph. There has been no significant movement detected in the inclinometers. <br />The second category shows piezometer data. Data for all three remaining piezometers are <br />shown on one attached sheet. No significant increases in readings have occurred during <br />the monitoring period. <br />The third category shows movement data for assorted benchmarks, posts and reflectors. <br />With the exception of the benchmark located at 07-GX2-CCR and the three posts located <br />near 07-GX2-CCR on the south/southwest perimeter of the rubblized zone, movement <br />since the program began has not been significant. The benchmark at 07-GX2-CCR is <br />located just outside the east slide perimeter. This monument has moved over 16 feet at a <br />fairly consistent rate over the course of the monitoring program. AAI is not overly <br />concerned or surprised by this movement given the location of this site. <br />With development of the slide area slated to begin later this year, a new monitoring plan <br />is being formulated as a part of Trapper's ground control plan. Agapito Associates Inc. is <br />in the process of recommending the new program that is geared more towards monitoring <br />the slide in conjunction with development. This plan will ultimately replace the current <br />P.O. Box 187 Craig, Colorado 81626 (970) 824-4401
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