2008-01-16_PERMIT FILE - C1994082A ‎(5)‎

• Permit No: C1994082A
• IBM Index Class Name: Permit File
• Doc Date: 1/16/2008
• Doc Name: YPM-9 to YPM-21, Dragline Deadhead Route Postmine Channel
• Section_Exhibit Name: Tab 13 Attachment 13-12 Appendix 13.12.3 Part 2
• Media Type: D
• Archive: Yes

YOAST MINE
Postmine Channel -YPM-11
HYDROLOGIC INPUT PARAMETERS
SEDCAD 4
WATERSHED ID
Structure 4 - SWS1
Watershed - W-20 (YPM-20)
Watershed Area:
17.0
Curve Number:
VEGETATION HYDROLOGIC CURVE AREA
WATERSHED TYPE COVER SOIL GROUP NUMBER acres
Aspen/Mountain Brush Good (>70%) C 41 5.58
Sagebrush Good {>70%) C 47 1.54
Reclaimed Fair (30%<x<70%) B 71 9.92
Total 17.0
CURVE NUMBER 59

i

TR-30 13-12.3-142 Revised 11/06