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

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SEDCAD 4
Structure 3 - SWS1
V•latershed YV-10 (YPM-10)
Sedimentology: Control Factor
CONTROL
LAND USE CONDITION COVER TYPE VEGETATION FACTOR AREA (acres)
25% canopy, 80%
Undistrubed Aspen/Mtn. Brush 0.042 2.7
ground cover
Reclaimed Reclaimed 60% ground cover 0.042 59.2
Total 61.9
Weighted Control Factor 0.042
YOAST MINE
Pond 10 -Watershed W-10
HYDROLOGIC INPUT PARAMETERS
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 fhe Revised Universal Soil 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).
TR-37 13-3A.1-A.27 Revised 02/08