PERMFILE66295

• Permit No: C1994082A
• IBM Index Class Name: Permit File
• Doc Date: 9/27/2007
• Doc Name: YPM-9 to YPM-21
• Section_Exhibit Name: Tab 13 Attachment 13-12 Appendix 13.12.3 Part 2
• Media Type: D
• Archive: Yes

YOAST MINE
Postmine Channels -YPM-10
HYDROLOGIC INPUT PARAMETERS
SEDCAD 4
WATERSHED ID
Structure 1 - SWS1
Watershed W-10 (YPM-10)
Watershed Area:
61.5
Curve Number:
VEGETATION HYDROLOGIC CURVE AREA
WATERSHED TYPE COVER SOIL GROUP NUMBER (acres)
Aspen/Mountain Brush Good {>70%) C 41 2.3
Reclaimed Fair (30%<x<70%) C 71 59.2
Total 61.5
CURVE NUMBER 70
TR-35
13-12.3-125
Revised 08!07