PERMFILE131730

• Permit No: C1980005A
• IBM Index Class Name: Permit File
• Doc Date: 9/12/2006
• Doc Name: 25-year, 24-hour SEDCAD Modeling
• Section_Exhibit Name: Tab 07 Appendix 7-6c.1 Addendum 7-6c.1B
• Media Type: D
• Archive: Yes

SEDCAD 4 for Windows
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Minimum pipe diameter: 1 - 21 inch pipe(s) required
. Structure #5 (Nu/~
SIIPM-14
Structure #7 (Nu/~
SIIPM-12 LOWER
Structure #9fPond)
POND 004
Pond Inputs:
Initial Poo! Etev: 6,950.15
Initial Pool: 11.53 ac-ft
*Sediment Sto2ge: 0.85 ac-R
Dead Space: 0.00
*Sediment capacity based on Aue2ge Annual R of 10.0 for 2 year(s)
Emeraencv Soiliwa

Pond Results:
Spillway Elev Crest Length Left Right Bottom
(ft)" Sideslope Sideslope Width (R)
6,950.15 40.00 4,00:1 4.00:1 12.00
Peak Elevadori: 6,950.55
H'graph Detention Time: 1.64 hrs
Pond Model: CSTRS
Dewater Time: 0.88 days
Trap Efficiency: 93.76 °h
Dewatering time is calculated from peak stage to lowest spillway
Elevation-Capacity-Dischar4e Table

Elevation Area

(ac) Capacity

(ac-ft) Discharge Dewater
Time
(cfs) (hrs)
6,943.01 0.538 0.000 0.000 Top of Sed. Storage
6,943.50 0.679 0.296 0.000
6,944.00 0.841 0.677 0.000
6,944.50 0.971 1.130 0.000
6,945.00 1.110 1.650 0.000
6,945.50 1.252 2.240 0.000
6,946.00 1.402 2.903 0.000
Filename: P004 As-Built_25yr.so4 7-6C. 1-4$ Printed 09-26-2005