2008-05-27_PERMIT FILE - C1981008A ‎(2)‎

• Permit No: C1981008A
• IBM Index Class Name: Permit File
• Doc Date: 5/27/2008
• Doc Name: Pond 013 As Built
• Section_Exhibit Name: Section 2.05.3‎(3)‎ Attachment 2.05.3‎(3)‎-21
• Media Type: D
• Archive: Yes

6. Unit peak discharge, qu......csm/in = 692.90
7. Runoff,Q .........................in = 0.8490
8. Pond & swap adjustment factor,...Fp = 1.00
9. Peak Discharge,gp ...............cfs = 35.0299

Time of Concentration (SCS Method)
Project: O13Pond By: R L GUBKA Date:. '
Location: NEW HORIZON MINE Checked: Date:
Developed
Curve Number: 86
Length of Flow (ft): 2635
Average Land Slope (percent): 13.2
Time of Concentration (hrs): 0.26
Pond Volume Calculation based on Universal Soil Loss Equation11/30/2007 07:56
Input Data
Landuse Area Rainfall Erod- Length Slope Ls Cf Pf
(ft^2) Factor ability (ft) (%) .
DRYLAND 1660071.6 50.0 0.37 2635.0 13.2 10.82 0.50 1.00
Attachment 2.05.3(3)-21-10