PERMFILE120594

• Permit No: C1980005A
• IBM Index Class Name: Permit File
• Doc Date: 9/28/2007
• Doc Name: 25 Year, 24 Hour SEDCAD Modeling
• Section_Exhibit Name: Tab 07 Appendix 7-6c.1 Addendum 7.6-1B
• Media Type: D
• Archive: Yes

SEDCAD 4 for Windows
Cmm~inFf ~°°A Pamnlo ~ RrFUn6
Structure #5 (Null)
SIIPM-14
Structure #7 (Null)
SIIPM-12 LOWER
Structure #9 (Pond)
POND 004
Pond Inputs:
12
Initial Pool Elev: 6,950.50
Initial Pool: 4.27 ac-ft
*Sediment Storage: 9.09 ac-ft
Dead Space: 20.00
Pond Results:
*Sediment capacity based on Average Annual R of 10.0 for 500 year(s)
Emelyencv Soillway
Spillway Elev Crest Length Left Right Bottom
(ft) Sideslope Sideslope Width (ft)
6 950.15 40.00 4.00:1 4.00:1 12.00
Peak Elevation: 6,950.52
H'graph Detention Time: 0.00 hrs
Pond Model: CSTRS
DewaterTme: 0.86 days
Trap Efficiency: 71.72
Dewatering time is calculated from peak stage to lowest spillway
Elevation-Capacity-Discharge Table

Elevation
Area
(ac)
Capacity
(ac-ft)
Discharge
(cfs) Dewater
Time
hrs
( )
6,948.86 2.350 0.000 0.000 Top of Sed. Storage
6,949.00 2.400 0.334 0.000
6,949.50 2.553 1.572 0.000
6,949.80 2.647 2.352 0.000
6,950.00 2.710 2.886 0.000
6,950.15 2.745 3.297 0.000 Spillway #1
6,950.50 2.826 4.272 7.207 20.20
6,950.52 2.830 4.322 7.568 0.90 Peak Stage

Filename: Pond 004 TR-42 Emergency Spillway Only 09_07.sc4
Printed 08-29-2007
TR-42 7-6c.1B-12 Revised 09/07