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 5-2
HYDROLOGIC INPUT PARAMETERS
SEDCAD 4
WATERSHED ID
Structure 2 - SWS1
Watershed Area:
3.4 acres
Curve Number:
VEGETATION HYDROLOGI CURVE AREA
WATERSHED TYPE COVER SOIL GROUP NUMBER (acres)
Sagebrush Good (>70%) D 55 1.5
Aspen/Mountain Brush Good (>70%) D 48 2.06
Total 3.56
CURVE NUMBER 51
SEDCAD 4
WATERSHED ID
Structure 2 - SWS2
Watershed Area:
14.9
Curve Number:
VEGETATION HYDROLOGIC CURVE AREA
WATERSHED TYPE COVER SOIL GROUP NUMBER (acres)
Reclaimed Fair B 71 14.9
Total 14.9
CURVE NUMBER 71
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