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2008-12-19_REVISION - C1994082
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2008-12-19_REVISION - C1994082
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Last modified
8/24/2016 3:39:07 PM
Creation date
12/23/2008 11:00:25 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1994082
IBM Index Class Name
REVISION
Doc Date
12/19/2008
Doc Name
Asequacy Comments Memo
From
Marcia Talvitie
To
Dan Mathews
Type & Sequence
TR38
Email Name
MLT
Media Type
D
Archive
No
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<br />STATE OF COLORADO <br />DIVISION OF RECLAMATION, MINING AND SAFETY <br />Department of Natural Resources <br />1313 Sherman St., Room 215 <br />Denver, Colorado 80203 <br />Phone: (303) 866-3567 <br />FAX: (303) 832-8106 <br />INTEROFFICE MEMORANDUM <br />Date: 19 December 2008 <br />To: Dan Mathews <br />From: Marcia Talvitie, P.E. 4;1W <br />Subject: Yoast Mine - Permit No. C-1994-082 <br />TR-38 - Pond 012 Slide Remediation Plan <br />Adequacy Comments (2) <br />COLORADO <br />D I V I S I ON OF <br />RECLAMATION <br />MINING <br />SAFETY <br />Bill Ritter, Jr. <br />Governor <br />Harris D. Sherman <br />Executive Director <br />Ronald W. Cattany <br />Division Director <br />Natural Resource Trustee <br />At your request, I have reviewed Seneca Coal Company's (SCC) 03-Dec-2008 response <br />to the Division's Preliminary Adequacy Review of TR-38. Requests 1 and 3 from the <br />PAR, SCC's responses, and my comments regarding the responses are presented herein. <br />1. DRMS Request: Please provide the Division with commitments addressing the <br />proposed schedule of monitoring, data collection, and additional field <br />investigation, a specific schedule for submittal of remediation plan designs <br />(designs to be provided within a future TR application), and proposed schedule <br />for construction of any approved remediation measures. This information should <br />reflect the findings and recommendations of the NWCC report, but should be <br />presented as SCC permit commitments, within appropriate permit narrative or <br />attachment sections, separate from the NWCC report. <br />SCC Response: NWCC will be taking measurements of the groundwater levels <br />and observing the condition of the PVC casing in the test holes, as well as the soil <br />movement occurring at the site during the month of November 2008, as well as on <br />a monthly basis through the anticipated peak runoff period from April 2009 to <br />July 2009. A supplemental subsurface investigation, which included the drilling <br />of two new test holes at the site, was completed in November 2008. NWCC <br />anticipates that the final report, as well as plans and recommendations for the <br />remediation of the slide at the site will be available by August 3, 2009. <br />MLT Comment: SCC's response adequately addresses the field monitoring <br />and data collection schedule for the site, and indicates that NWCC will have its <br />final report available by 03-Aug-2009. What is not described is the process that <br />Office of Office of <br />Mined Land Reclamation Denver • Grand Jonction • Durango Active and Inactive Mines
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