PERMFILE126472

• Permit No: C1994082A
• IBM Index Class Name: Permit File
• Doc Date: 6/15/2006
• Doc Name: YPM-9 to YPM-20
• Section_Exhibit Name: Tab 13 Attachment 13-12 Appendix 13-12.3 Part 2
• Media Type: D
• Archive: Yes

•
•
YOAST POSTMINE CHANNEL 20
HYDROLOGIC INPUT PARAMETERS
SEDCAD 4
WATERSHED ID
YPM-20 - SW S7
Watershed Area:
14.71 acres
Curve Number:
VEGETATION HYDROLOGIC CURVE AREA
WATERSHED TYPE COVER SOIL GROUP NUMBER (acres)
Aspen/Mountain Brush Good (>70%) C 41 7
Reclaimed Fair B 71 7.71
Total 14.71
CURVE NUMBER 57
•