My WebLink
|
Help
|
About
|
Sign Out
Home
Browse
Search
2016-08-11_REVISION - C1982056 (6)
DRMS
>
Day Forward
>
Revision
>
Coal
>
C1982056
>
2016-08-11_REVISION - C1982056 (6)
Metadata
Thumbnails
Annotations
Entry Properties
Last modified
9/7/2016 9:58:18 AM
Creation date
8/12/2016 8:27:08 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1982056
IBM Index Class Name
Revision
Doc Date
8/11/2016
Doc Name
Adequacy Review
From
DRMS
To
Twentymile Coal, LLC
Type & Sequence
TR84
Email Name
JLE
DIH
Media Type
D
Archive
No
There are no annotations on this page.
Document management portal powered by Laserfiche WebLink 9 © 1998-2015
Laserfiche.
All rights reserved.
/
6
PDF
Print
Pages to print
Enter page numbers and/or page ranges separated by commas. For example, 1,3,5-12.
After downloading, print the document using a PDF reader (e.g. Adobe Reader).
View images
View plain text
Twentymile Coal, LLC. <br />Page 4 <br />August 11, 2016 <br />16. Based on your responses to the items above, please provide an updated reclamation cost estimate <br />for the reclamation of the passive water treatment system in accordance with Rule 2.05.4(2)(b). <br />The current cost estimate approved for the Foidel Creek Mine already includes the reclamation of <br />the 6MN reservoir so the estimate does not have to include a cost for the reservoir. Once an <br />updated reclamation plan has been agreed upon, the Division will conduct a liability estimate. <br />17. Please submit a revised Map 29, Reclamation Plan Map depicting the post mine configuration of <br />the water treatment cells and the 6MN Reservoir. <br />18. In accordance with Rule 2.05.4(2)(h) on proposed revised page 2.05-122.1, please provide a <br />narrative that TC is seeking the approval of a new CDPS permit to discharge water from the 6MN <br />reservoir and the discharge will not occur until this permit is in place. <br />Rule 2.05.6 <br />19. Proposed revised page 2.05-131 cuts off the "Probable Hydrologic Consequences" section <br />heading and the first sentence of this section that is currently on page 2.05-131. Please revise this <br />page to include this information. <br />20. Proposed revised page 2.05-145 does not include a portion of the paragraph from the preceding <br />page. Please review these pages and insure the text follows from the preceding and subsequent <br />pages. <br />21. Proposed revised pages 2.05-145 to 146.1 appears to be missing information pertaining to the <br />Wolf Creek Reserve that was added with TR83. Please review the currently approved pages and <br />make the appropriate revisions to the most recent application pages. <br />22. Proposed revised page 2.05-153 indicates that with the system, iron reduction at a maximum <br />design flow rate is estimated at 59%. However, based on the C2HM Hill design submitted with <br />Exhibit 49EE indicates the iron reduction at the maximum designed flow of 357 gpm will be <br />57%. Please revise the page to address this discrepancy. <br />23. The proposed passive water treatment system design submitted to be included in Exhibit 49EE <br />indicates that the target TDS removal goal is not achievable with a constructed wetland system <br />that includes the 6MN Reservoir as a final polishing pond even with the maximum and minimum <br />expected flows of 375 and 75 gpm. Proposed revised page 2.05-153 indicates that the passive <br />water treatment system will reduce TDS with associated reductions in EC and that discharge from <br />the 6MN reservoir will be managed to keep EC levels below downstream material damage <br />thresholds. Please explain in detail how the discharge will be managed to keep EC levels below <br />the material damage threshold as the design appears to indicate that this will not be possible? <br />
The URL can be used to link to this page
Your browser does not support the video tag.