2008-12-04_PERMIT FILE - C1994082 ‎(10)‎

• Permit No: C1994082
• IBM Index Class Name: Permit File
• Doc Date: 12/4/2008
• Doc Name: Pond 012 and Pond 012A Two-Pond System Design ‎(Pgs 13-12.1-149 to 13-12.1-225)‎
• Section_Exhibit Name: Tab 13 Attachment 13-12 Appendix 13-12.1 Part 2
• Media Type: D
• Archive: No

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Yoast Mine
Pond 0121012A System
HYDROLOGIC !*i9''UT PARAMETERS
SEDCAD4
Channel YPM-1-1
Watershed ID -Structure 1 - SWS1
Sedimentology: Control Factor
LAND USE CONDITION COVER TYPE
Undistrubed AspeniMtn. Brush
Sagebrush
Reclaimed Reclaimed
Total
C Factor
0.042
The Control Factor values are approved Yoast Mine values as presented in Attachment 13-12, Table 13-
12.3. The values were originally presented in Renard, et al. (1997} Predicting Soil Erosion by Water' A
Guide to Converation Planning with the Revised Universal Sail Loss Equation (RUBLE), Agricultural
Handbook 703, U.S. Department of Agriculture as reported in Warner et al. (1998) as reported in Warner et
al. (1998).
•
•
13-12.1-174
TR-37
CONTROLS AREA
VEGETATION FACTOR (acres;
25% canopy, SO% 0.042 2.4
ground cover
25% canopy, 80% 0.042 0.7
ground cover
60% ground cover 0.042 51.1
54.2
Revised 08!08