PERMFILE132039

• Permit No: C1994082A
• IBM Index Class Name: Permit File
• Doc Date: 9/30/2002
• Doc Name: Sediment Ponds SEDCAD4 Results
• Section_Exhibit Name: Tab 13 Attachment 13-12 Appendix 13-12.1
• Media Type: D
• Archive: Yes

• YOAST MINE -POND 12
HYDROLOGIC INPUT PARAMETERS
SEDCAD 4
WATERSHED ID
Structure 1 -SWS4
Watershed Area:
10.7 acres
I
•
Curve Number:
WATERSHED
TYPE VEGETATION
COVER HYDROLOGIC
SOIL GROUP CURVE
NUMBER AREA
(acres)
Aspen/Mountain Brush
Sagebrush Good (>70%)
Good (>7G%) B
D 30
55 3.5
7.2
Total 70.7
CURVE NUMBER: 47
Soil Erodibilify Facfor (K):
SOIL ERODIBILITY FACTOR
SOIL AREA K K'AREA
TYPE (acres) FACTOR
Aaberg 4.8 0.28 7.344
Binco 2.7 0.28 0.756
Foidel 3.2 0.28 0.896
Total 70.7 2.996
Weightetl K Factor: 0.28
Control Factor.
CONTROL FACTOR
CONTROL PRACTICE
CONDITION AREA
{acres) C
FACTOR C'AREA
Aspen/Mountain Brush
Sagebrush 3.5
7.2 0.042
0.042 0.1
0.3
Total 10.7 0.4
WeighTetl C Factor: 0.042