PERMFILE45602

• Permit No: C1994082A
• IBM Index Class Name: Permit File
• Doc Date: 2/28/2006
• Doc Name: Postmining Channels SEDCAD4 YPM-1 to YPM-6A
• Section_Exhibit Name: Tab 13 Attachment 13-12 Appendix 13-12.3
• Media Type: D
• Archive: Yes

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YOAST POSTMINE CHANNEL 1-1
HYDROLOGIC INPUT PARAMETERS
SEDCAD 4
WATERSHED ID
Structure 1 - SWS7
Watershed Area:
29.4
Curve Number;
VEGETATION HYDROLOGIC CURVE AREA
WATERSHED TYPE COVER SOIL GROUP NUMBER (acres)
Reclaimed Fair B 71 29.4
Total 29.4
CURVE NUMBER 71
SEDCAD 4
WATERSHED ID
Structure 1 - SWS2
Watershed Area:
3.1
Curve Number:
VEGETATION HYDROLOGIC CURVE AREA
WATERSHED TYPE COVER SOIL GROUP NUMBER (acres)
Aspen/Mountain Shrub Good (>70%) C 41 2.37
Sage Brush Good (>70%) C 47 0.7
Total 3.07
CURVE NUMBER 42
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