My WebLink
|
Help
|
About
|
Sign Out
Home
Browse
Search
2010-12-15_REVISION - C1981019
DRMS
>
Day Forward
>
Revision
>
Coal
>
C1981019
>
2010-12-15_REVISION - C1981019
Metadata
Thumbnails
Annotations
Entry Properties
Last modified
8/24/2016 4:27:56 PM
Creation date
12/16/2010 8:10:01 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1981019
IBM Index Class Name
REVISION
Doc Date
12/15/2010
Doc Name
Letter Regarding Comments and Responses
From
Colowyo Coal Company
To
DRMS
Type & Sequence
TR81
Email Name
JRS
SB1
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.
/
21
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
iii. Please update the watershed boundaries for the East Taylor, Streeter, <br />Section 16 and Prospect watershed boundaries as necessary. If, based on these <br />changes, any of the watershed boundaries have changed due to the changes in the <br />proposed post-mining topography, Colowyo will (including but not limited to providing <br />new SEDCAD modeling for the affected ponds to ensure they can handle the <br />additional runoff). <br />Response: Drainage boundaries have been revised to match the proposed postmining <br />topography on both Maps 12 and Maps 41141A. Revised SEDCAD modeling is <br />provided for all affected watersheds. <br />e. Map 41A does not have the northing and easting grid or datum values like the other <br />maps do. Please add the northing and easting grid and datum values to Map 41A. <br />Response: We have added northing & easting grid and datum values to Map 41A <br />f. Map 12, Map 41 and Map 41A show the watershed boundaries for the South Area <br />and the South Taylor Area, respectively. As stated, there are several sections on that <br />these maps have in common. Please include a complete delineation of all watershed <br />boundaries on Maps 12, 41 and 41A for the boundaries that are shown on both maps. <br />Response: We have reviewed and revised the watershed boundaries and labels for Maps 12 and <br />12A and Map 41 and 41A. Also the small location map in the legend has been <br />modified to show the delineation of the mapping area common to each map. <br />g. Map 41A shows the watershed boundaries for the South Taylor Pit area. The <br />section 21 and Section 28 watershed boundaries are delineated but not labeled. Please <br />label the Section 21 and Section 28 watershed boundaries on Map 41A. <br />Response: All watershed boundaries on Map 41A have been labeled as requested. <br />h. Map 12 and Map 41 show the portion of the South Taylor Pit limit that crosses over <br />into Section 16. This disturbance limit is the currently approved limit. Please change the <br />South Taylor Pit disturbance limit that is currently shown on Map 12 and Map 41 to reflect <br />the changes proposed in Technical Revision 81. This limit includes the Section 16 Pit <br />redisturbance for the temporary overburden stockpile. <br />Response: This change has been made. <br />i. The Section 16 Pond Ditch is a major ditch in the sediment control plan. This ditch <br />collects runoff from the northeast portion of the South Taylor Pit, including the X-Pod and <br />Section 16 dump areas. Please include the Section 16 Pond Ditch on Map 41A. <br />Response: This ditch has been added as requested <br />j. As discussed in several questions above, there will be major changes to, at a <br />minimum, the Taylor Tributary Ditch, the Section 16 Taylor Ditch (Version 2), the East <br />Taylor Ditch and the West Taylor Ditch. Based on these changes, Colowyo will need to <br />include new SEDCAD modeling for the East Taylor Pond. Please include new SEDCAD
The URL can be used to link to this page
Your browser does not support the video tag.