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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YOAST MINE
Pond 10 -Watershed W-11
wneni nr_ir ia~oi IT DAGAMGTFRS
n ~ v.ww....... -
SEDCAD 4
Structure 2 - SWS1
Watershed W-11 (YPM-11)
Sedimentology: Control Factor
CONTROL
LAND USE CONDITION COVER TYPE VEGETATION FACTOR AREA (acres)

Undistrubed As enMltn. Brush
p 25% canopy, 80%
ground cover 0.042 240.39

Sagebrush 25% canopy, 80% 0.042 12.38
ground cover
Herbaceous 80% ground cover 0.042 0.0
Nlesic Drainage 40% greund cover 0.1 9.73
Reclaimed 60% ground cover 0.042 81.1
Reclaimed
Total 343.6
I~leighted Control Factor 0.044
The Control Facer 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 Soi! 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.25 Revised 02108