PERMFILE102711

• Permit No: C1994082A
• IBM Index Class Name: Permit File
• Doc Date: 8/12/2005
• Doc Name: As-Built Report Pond 012
• Section_Exhibit Name: Tab 13 Attachment 13-12A
• Media Type: D
• Archive: Yes

SEDCAD 4 for Windows
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• Structure #1 (Pond)
Pond 12
Pond Inputs:
Structure Detai/.-
Initial Pool Elev: 7,251.00
Initial Pool: 4.39 ac-ft
*Sediment Storage: 8.67 ac-ft
Dead Space: 20.00
*Sediment capacity based on Average Annual R of Io.O for 2 year(s)
Perforated Riser
Riser Riser Height Barrel garret Barrel Slope Number of
'
Diameter
(ft) Diameter °
Length (ft) (/°) s n Spillway Elev Holes per
Manning
(in) (in) Elev
30.00 5.00 24.00 102.00 5.00 0.0240 7,253.00 3
Emeraenc~Spillway
LJ
Pond Results:
Spillway Elev Crest length Left Right Bottom
(ft) Sideslope Sideslope Witlth (ft)
7,257.00 50.00 3.00:1 3.00:1 15.00
Peak Elevation: 7,257.49
H'graph Detention Time: 3.29 hrs
Pond Model: CSTRS
Dewater Time: 2.26 days
Trap Efficiency: 59.69
Dewatering time is calculated from peak stage to lowest spillway
Elevation-Capacit~Discharge Table

Elevation Area

(ac) Capacity

(ac-ft) Discharge Dewater
Time
(~) (hrs)
7,246.61 0.880 0.000 0.000 Top of Sed. Storage
7,247.00 0.901 0.350 0.000
7,247.50 0.927 0.807 0.000
7,248.00 0.953 1.277 0.000
7,248.50 0.980 1.760 0.000
7,299.00 1.007 2.257 0.000 I
Filename: Pond 12_25year.sc4 Printetl 05-OS-2005