My WebLink
|
Help
|
About
|
Sign Out
Home
Browse
Search
2016-12-08_REVISION - C1981010
DRMS
>
Day Forward
>
Revision
>
Coal
>
C1981010
>
2016-12-08_REVISION - C1981010
Metadata
Thumbnails
Annotations
Entry Properties
Last modified
12/9/2016 9:30:02 AM
Creation date
12/9/2016 8:44:23 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1981010
IBM Index Class Name
Revision
Doc Date
12/8/2016
Doc Name
Adequacy Review - Preliminary
From
Trapper Mining Inc
To
DRMS
Type & Sequence
TR117
Email Name
TNL
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.
/
5
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
Tabetha, <br />Concerning the questions produced by DRN1S over the curve numbers in the Deacon/Jeffway drainage design. <br />These curve numbers were derived using a weighted average approach for sub -watersheds that contained more than <br />one curve number. The initial curve numbers utilized all have been approved in the permit: 87 CN for active mining and <br />47 CN for undisturbed conditions. <br />Structure 1: <br />Structure 2: <br />Structure 3: <br />(8.28 Acres)(87CN) + (9.24 Acres)(47CN) <br />17.52 Total Acres = 66 CN <br />(23.24 Acres)(87CN) + (13.97 Acres)(47CN) <br />37.21 Total Acres =72 CN <br />(12.48 Acres)(87CN) + (18.18 Acres)(47CN) <br />30.66 Total Acres <br />= 63 CN <br />Please contact me if there are any further concerns, <br />_T <br />Thomas Scott Paulson <br />Mining Engineer <br />P.O. Box 187 <br />Craig, CO. 81626 <br />(970) 824-4401 Ext. 466 <br />(970) 826-6178 (Fax) <br />(970) 819-6380 (Cell) <br />tom(tiArappermine.com <br />
The URL can be used to link to this page
Your browser does not support the video tag.