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2021-09-29_REPORT - C1981010
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2021-09-29_REPORT - C1981010
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Last modified
9/30/2021 6:55:40 AM
Creation date
9/30/2021 6:52:43 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1981010
IBM Index Class Name
Report
Doc Date
9/29/2021
Doc Name
Quarterly Waste Bank Inspection Report Adequacy Review
From
DRMS
To
Trapper Mining Inc
Annual Report Year
2021
Report Quarter_Month
3
Permit Index Doc Type
Waste Pile/Fill Report
Email Name
RAR
JLE
Media Type
D
Archive
No
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COLORADO <br />a Division of Reclamation, <br />Mining and Safety <br />Department of Natural Resources <br />Tonia M. Perkins, P.E. <br />Trapper Mining, Inc <br />P.O. BOX 187 <br />Craig, CO 81626 <br />29 September 2021 <br />Re: Trapper Mining, Inc., Permit C1981010 <br />2021 Quarter 3 Horse Gulch Fill Inspection Report <br />Dear Ms. Perkins: <br />The Colorado Division of Reclamation, Mining, and Safety (CDRMS) has reviewed and <br />found the above referenced report to be in general compliance with the following CDRMS <br />regulations: <br />4.09.1(11(a) Inspected at least quarterly by a registered engineer, or other qualified <br />professional specialist in construction of earth and rockfall embankments under the direction <br />of a qualified engineer throughout the construction. <br />The certified report covers the third quarter monitoring period from July through September of <br />2021, and the inspection was conducted by yourself, a certified engineer on 14 September <br />2021. <br />4.09.1(11)(b) Provide to the Division a certified report within 2 weeks after each inspection <br />that the fill has been constructed as specified in the design approved by the Division. The <br />report shall include a description of any appearances of instability, structural weakness, and <br />other hazardous conditions. <br />The Division received the report via electronic transmission on 22 September 2021. No <br />instability, structural weakness, or other hazardous conditions were noted during this <br />inspection of the fill. The area where cracks were detected on the top south portion of the fill <br />during the first quarter of 2013 was inspected and no additional cracking was observed. Other <br />areas where differential settling has been observed in the past were also inspected. The spots <br />above the 7350' elevation on the south side, where in 2013 some settling occurred, were <br />flF'�010 <br />1313 Sherman Street, Room 215, Denver, CO 80203 P 303.866.3567 F 303.832.8106 https://drms.colorado.gov I * o <br />Jared S. Polis, Governor I Dan Gibbs, Executive Director I Virginia Brannon, Director * 1876* <br />
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