PERMFILE63858

• Permit No: C1981008A
• IBM Index Class Name: Permit File
• Doc Date: 7/30/2007
• Doc Name: Ponds 010 & 013 As Designed Calculations
• Section_Exhibit Name: Section 2.05.3‎(3)‎ Attachment 2.05.3‎(3)‎-6
• Media Type: D
• Archive: Yes

• POND 13 DESIGN PARAMETERS
Runoff Curare Number and Runoff 07!2511999
Project: AMENDMENT By: GL Date: 07/25/99
Location: POND 13 Checked: Date:
Developed
1. Runoff curve number (Cn)
Cover description CN Soil Type Area
DIST 91 D 23.610 Acres
UNDIST 83 D 14.500 Acres
CN (weighted): 88
2. Runoff
Frequency .............. : 25 yr
Rainfall, P (24-hour) ..:2.40 in
Runoff, O ..............: 1.29 in
Runoff Volume ........ ..:4.11 Acre-Ft
Pond Volume Calculation based on Universal Soil loss Equation 07/25!1999
Input Data
Landuse Area Rainfall Erod- Length Slope Ls Cf Pf
(ff^2) Factor ability (ff) (%)
DIST 1659849.1 24.0 0.28 2635.0 13.2 10.79 0.50 1.00
• Runoff = 1.290 inch.
Sediment Density = 112.000
Time = 3.0 years
Drainage Ratio = 0.37
Total Area = 38.105 acres
Gross Erosion = 1381.369 tonstyr.
Total Yield = 511.107 tons/yr.
Runoff Volume = 4.096 acre-tt
Sediment Volume = 0.629 acre-ff
Total Volume = 4.725 acre-tt
Pond Report Pond 013
Top of dam elevation: 5570.0000
Bottom of pond elevation: 5561.0000
Top of dam width: 10.0000
Cut slope percent grade: 40.00, slope ratio: 2.50
Fill slope percent grade: 40.00, slope ratio: 2.50
Interior slope percent grade: 40.00, slope ratio: 2.50
Lower left grid comer :1112208.14,602286.95
Upper d9ht grid corner: 1113374.39,602953.12
• X grid resolution: 100, Y gdd resolution: 100
X grid cell size: 11.66, Y grid cell size: 6.66
12EVISED JULY 2006
07/30/1999
Attachment 2.05.3(3)-6-23