PERMFILE120404

• Permit No: C1994082A
• IBM Index Class Name: Permit File
• Doc Date: 6/1/2007
• Doc Name: Isolines of R Factor for Western U.S.
• From: 10 Year 24 Hour SEDCAD Demonstration
• Section_Exhibit Name: Tab 13 Attachment 13-3A Addendum 13-3A-1 & Addendum 13-3A-A
• Media Type: D
• Archive: Yes

•
YOAST MINE
Pond 10 -Watershed W-8
HYDROLOGIC INPUT PARAMETERS
SEDCAD 4
WATERSHED ID
Structure 6 - SWS1
Watershed W-8 (YPM-8)
Watershed Area:
27.1
Curve Number:
VEGETATION HYDROLOGIC CURVE AREA
WATERSHED TYPE COVER SOIL GROUP NUMBER (acres)
Aspen/Mountain Brush Good (>70%) C 41 2.9
Reclaimed Fair (30%<x<70%) B 71 15.98
Spoil Bare C 86 8.23
Total 27.1
CURVE NUMBER 72
SEDCAD 4
WATERSHED ID
Structure 6 - SWS1
Watershed W-8 (YPM-8j
Watershed Area:
27.1
Sedimentology
k Factor and Control Factor:
VEGETATION HYDROLOGIC k CONTROL AREA
WATERSHED TYPE COVER SOIL GROUP FACTOR FACTOR (acres)
Aspen/Mountain Brush Good (>70%) C 0.23 0.042 2.9
Reclaimed Fair (30%<x<70%) B 0.16 0.043 15.98
Spoil Bare C 0.16 1.0 8.23
Total 27.1
0.17 0,33
TR-30
13-3A-A.23
Revised 11/06