2009-06-19_PERMIT FILE - C1996083A ‎(8)‎

• Permit No: C1996083A
• IBM Index Class Name: Permit File
• Doc Date: 6/19/2009
• Doc Name: Appendix A to Appendix C Report, 11/10/03
• Section_Exhibit Name: Coal Mine Waste Disposal Area No. 2
• Media Type: D
• Archive: Yes

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Appendix B
Summa Coal Mine Waste Disposal Area Ditches and Culverts
Ditch Grade Minimum Grade Maximum Grade Ri Ra Peak
Min Max Depth Velocity Depth Velocity 50 inch Flo
Feet Ft/Sec Feet Ft/Sec cfs
F 1 3.5% 3.5% 0.30 3.2 0.30 3.2 1 1 3.36
F2 2% 2% 0.35 2.6 0.35 2.6 3.65
F3 2% 2% 0.30 2.4 0.30 2.4 1 1 2.53
F4 10% 34% Trapezoid al Channel 24 24.29
F5 2% 2% 0.35 2.6 0.35 2.6 3.69
F6 2% 2% 0.40 2.6 0.40 2.6 3.66
F7 2% 2% Trapezoid al Channel 15 46.33
F8 2% 2% 0.27 2.2 0.27 2.2 1.89
F9 5% 40% Tra ezoidal Channel 12 1.69
IF 10 2% 2% 0.38 2.8 0.38 2.8 4.53
F11 10% 50% Tra ezoidal Channel 24 23.29
I F 12 2% 2% 0.35 2.6 0.35 2.6 3.75
I F 13 2% 2% 1.03 4.8 1.03 4.8 7.71
F14 20% 50% Tra ezoidal Channel 18 r--34-.-9-41
F15 2% 30% Tra ezoidal Channel 12 2.34
F16 10% 10% Tra ezoidal Channel 9 5.36
F17 2% 2% 0.33 2.5 0.33 2.5 2.44
I F 18 2.5% 2.5% 0.64 4.2 0.64 4.21 1 4.26
F19 2.0% 2.0% 0.38 2.8 0.38 2.81 1 4.71
East Div. 2.5% 5% Tra ezoidal Channel 9.42
W. Div #1 5% 10% Tra ezoidal Channel 12 9.33
W. Div #2 2.5% 5% 0.31 3.4 0.29 4.51 1 7.34
Culvert:
F21 42" 42.65

Flow de pth in feet d oes not include f reeboard.
App-B9
06/09