PERMFILE114540

• Permit No: C1996083A
• IBM Index Class Name: Permit File
• Doc Date: 3/20/2007
• 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

A endix B
Summa Coal Mine Waste Dis osal Area Ditches and Culverts
Ditch Grade Minimum Grade Maximum Grade RipRap Peak
Min Max De th Veloci De th Veloci so nc Flo
Feet FUSec Feet FUSec cfs
F1 3.5% 3.5% 0.30 3.2 0.30 3.2 3.36
F2 2% 2% 0.34 2.6 0.34 2.6 3.61
F3 2% 2% 0.23 2.0 0.23 2.0 1.28
F4 10% 34% Tra ezoid al Channel 18 27.43
FS 2% 2% 0.38 2.8 0.38 2.8 5.23
F6 2% 2% 0.40 2.9 0.40 2.9 5.81
F7 2% 2% Tra ezoid al Channel 15 38.35
F8 2% 2% 0.36 2.7 0.36 2.7 4.34
F9 5% 45% Tra ezoid al Channel 12 1.67
F10 2% 2% 0.35 1.9 0.35 1.9 3.90
F11 10% 50% Tra ezoid al Channel 21 17.06
F12 2% 2% 0.40 2.8 0.40 2.8 5.45
F13 2% 2% 1.03 4.8 1.03 4.8 7.71
F14 20% 50% Trapezoid al Channel 21 26.54
F15 2% 30% Tra zoid al Channel 12 2.34
F16 10% 10% Trapezoid al Channel 9 5.36
F17 2% 2% 0.36 2.7 0.36 2.7 3.44
F18 2.5% 2.5% 0.45 3.3 0.45 3.3 1.71
East Div. 5% 40% Trapezoidal Channel 21 9.42
W. Div #1 5% 10% Trapezoidal Channel 7.78
W. Div #2 5% 10% 0.31 3.4 0.29 4.5 0.51
Culvert:
F2 42" 34.25

Flow de th in feet d oes not include 0.3 feet freeboard.
APP. B-8
ouo7
TR-44
~ PPRovED
3/i o/a ~7