PERMFILE55143

• Permit No: C1981008A
• IBM Index Class Name: Permit File
• Doc Date: 12/11/2001
• Doc Name: Pond 10
• Section_Exhibit Name: NH2 1996 Section 2.05.3‎(3)‎ Attachment 2.05.3‎(3)‎-10 Part 4
• Media Type: D
• Archive: Yes

Doc Date:12/11/2001
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• Runoff Curve Number and Runoff 07/27/1999
Project: AMENDMENT / 8y: GL Date: 07/27/99
Location(~POND 10 ~j/C Checked: Date:
DevelopeS~d- J
1. Runoff curve number (Cn)
Cover description CN Soil Type Area
DISTURBED 90 C 51.000 Acres
PARTDIST 85 C 80.000 Acres
UNDISTURBED 78 C 75.900 Acres
CN (weighted): 84
2. Runoff
Frequency ..............: 10 yr
Rainfall, P (24-hour) ..: 2.0 in
Runoff, O ..............:0.73 in
Runoff Volume ..........:12.54 Acre-Ft
Input Data
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Landuse Area Rainfall Erod- Length Slope Ls Cf Pf
(ft^2) Factor ability (ft) (%)
-----------------------------------------------------------------------
-----------------------------------------------------------------------
DIST 9016920.0 24.0 0.30 3400.0 4.8 2.02 0.40 1.00
Runoff = 0.730 inch.
Sediment Density = 112.000
Time = 3.0 years
Drainage Ratio = 0.37
Total Area = 207.000 acres
Gross Erosion = 1201.314 tons/yr.
Total Yield = 444.486 tons/yr.
Runoff Volume = 12.592 acre-ft
Sediment Volume = 0.547 acre-ft
Total Volume = 13.139 acre-ft
•
(Revised 12/00) Attachment 2.05.3(3) -10-37