2008-12-04_PERMIT FILE - C1994082 ‎(2)‎

• Permit No: C1994082
• IBM Index Class Name: Permit File
• Doc Date: 12/4/2008
• Doc Name: 10 Year, 24 Hour Postmine SEDCAD Demonstration
• Section_Exhibit Name: Tab 13 Attachment 13-3A.1 Appendix 13-3A.1-A
• Media Type: D
• Archive: No

YOAST MINE
Pond 10 -Watershed W-16
HYDROLOGIC INPUT PARAMETERS
SEDCAD 4
Structure 4 - SWS1
Watershed W-16 (YPM-16)
Sedimentology: Control Factor
CONTROL
LAND USE CONDITION I COVER TYPE VEGETATION FACTOR AREA (acres}
Undistrubed AspenlMtn. Brush 25% canopy, 80% 0.042 1.18
ground cover
Sagebrush 25°!° canopy, 80% 0.042 0.77
grcund cover
Reclaimed Reclaimed 60% ground cover 0.042 16.16
Total 18.1
Weighted Control Factor 0.042
The Control Factor values are approved Yoast Mine values as presented in Attachment 13-12, Table 13-12.3. The values
mere originally presented in Renard, et al. (1997) Predicting Soil Erosion by Water.• A Guide to Converation Planning
with the Revised Universe! Soil Loss Equation (RUBLE), Agricultural Handbook 703, U.S. Department of Agriculture as
reported in blamer et al. (1998) as reported in blamer et al. (1998).
•
•
TR-37
13-3A.1-A.29
Revised 02/08