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

SEDCAD 4 for Windows
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Subwatershed Hydro%gy Detai/;

Stru
#
SWS
#
SWS Area
(ac) Time of
Conc
(ham)
Musk K
(hrs)
Musk X
Curve
Number
UHS Peak
Discharge

(cfs) Runoff
Volume

(ac-ft)
#2 1 41.600 0.102 0.000 0.000 71.000 M 6.68 0.544
41.600 6.68 0.544
#1 I 13.300 0.085 0.000 0.000 71.000 M 2.14 0.174
13.300 2.14 0.174
#3 1 0.900 0.021 0.002 0.432 51.000 M 0.00 0.000
2 12.200 0.063 0.000 0.000 71.000 M 1.96 0.160
68.000 10.77 0.878
Subwatershed Time of Concentration Detai/s;
•
Stru SWS Land Flow Condition Slope (%) Vert. Dist. Horiz. Dist. Velocity Time (hrs)
# # (ft) (ft) (fps)
#1 1 5. Nearly bare and unfilled, and 6.25 25.00 400.00 2.500 044
0
alluvial valley fans .
7. Paved area and small upland 19.25 180.00 935.00 8.630 0
029
gullies .
8. Large gullies, diversions, and low 16.07 90.00 560.00 12.020 0
012
Flowing streams .
#1 1 Time of Concentration: 0.065
#2 1 5. Nearly bare and unfilled, and 15.00 00
60 400.00 3
870 026
0
alluvial valley fans . . .
7. Paved area and small upland 14.29 265.00 1,855.00 7.600 0.067
gullies
8. Large gullies, diversions, and low 20.00 75.00 375.00 13.410 007
0
Flowing streams .
#2 1 Time of Concentration: 0.102
#3 1 3. Short grass pasture 29.41 100.00 340.00 4.330 0.021
#3 1 Time of Concentration: 0.021
#3 2 5. Nearly bare and unfilled, and 18.75 75.00 400.00 4
330 025
0
alluvial valley fans . .
7. Paved area and small upland

gullies 22 92 165.00 720.00 9.630 0.020
8. Large gullies, diversions, and low 10.24 65.00 635.00 9.590 0
018
Flowing streams .
#3 2 Time of Concentration: 0.063
• Subwatershed Muskingum Routing Detai/s;
Filename: YPM-3, 3A.sc4 Printetl 03-03-2005