My WebLink
|
Help
|
About
|
Sign Out
Home
Browse
Search
PERMFILE119562
DRMS
>
Back File Migration
>
Permit File
>
200000
>
PERMFILE119562
Metadata
Thumbnails
Annotations
Entry Properties
Last modified
8/24/2016 10:18:39 PM
Creation date
11/25/2007 7:16:07 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1994082
IBM Index Class Name
Permit File
Doc Date
12/11/2001
Doc Name
GENERAL HYDROLOGY DESIGN METHODS
Section_Exhibit Name
TAB 13 ATTACHMENT 13-1
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.
/
13
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
• TABLE 2 <br />(Continued) <br />3Determined by utilizing Soil Conservation Service (SCS, 1981) Soit Interpretation <br />Procedural Guidelines for preparing SCS-SOILS-5 forms (Tab 9, Addendum 5) and map unit <br />composition information listed in Tab 9, Addendum 4. <br />ASu rf ace soil horizon k values (Tab 9, Addendum 5) Nere caltuleted by utilizing the <br />USDA-ARS revised USLE software program. The k values were adjusted for volumetric rock <br />fragments, whenever necessary, according to Table 603-5 (SCS, 1983 - National Soils <br />Xandbook). The map unit k factors ere based upon composition percentage information <br />listed in Teb 9, Addendum 4. <br />Particle Size Distributions. The particle size distribution is based on sieve and <br />hydrometer analysis of various soil types in the proposed permit area. The distribution <br />is en average of the soil types in the mine area. <br />The specific gravity of the soil and the submerged bulk specific gravity were estimated <br />• based on various soil types. Specific gravity and submerged bulk specific gravity were <br />estimated to be 2.50 and 1.25, respectively. <br />R-Factor. The R-factor for the Seneca II-w Mine area was determined to be 30. <br />~ Leneth-Slone Factor (L S). The length slope is described as the Cypicel length-slope for <br />the subwatershed end the distance from the point of origin of overland flow until the <br />point that the slope decreases such that significant deposition occurs, or until the flow <br />enters a defined channel. Following is McKOOk et al.'s (1987) L,S equation: <br />C~ <br />13-1-7 Revised 03/01/95 <br />
The URL can be used to link to this page
Your browser does not support the video tag.