PERMFILE131331

• Permit No: C1981014
• IBM Index Class Name: Permit File
• Doc Date: 6/3/2002
• Section_Exhibit Name: Exhibit 19 Attachment 2 SAE Documentation
• Media Type: D
• Archive: No

SEDCAD 4 for Windows
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6
Structure Detai/;
Structure #1 (Silt Fence)
Silt Fence
Silt Fence Inputs:
Fence Flow yyidth along Land Slope Tie-back
Rate contour (ft) Height (ft) (070) distance (ft)
(gpm/sq ft)
10.0 90.0 2.0 10.00 20.0
*Sediment Storage: 0.00 ac-R
*No sediment capacity defined
Silt Fence Results:
Peak Fence Stage: 1.26 ft
Peak Water Stage: 1.26 ft
Dewater Time: 0.50 days
Trap Efficiency: 85.24 %
Dewateiing time is ca/culated from peak stage to lowest spillway
Stage-Capacity-Discharge Table
Fence Stage

(ft) Water Stage

(ft) Area

(ac) Capacity

(ac-ft) Discharge

(c~) Dewater
Time
(hrs)
0.00 0.00 0.000 0.000 0.000 Top of Sediment
0.10 0.10 0.002 0.000 0.203 9.50
0.20 0.20 0.004 0.000 0.410 1.95
0.30 0.30 0.006 0.001 0.622 0.05
0.40 0.40 0.008 0.002 0.838 0.30
0.50 0.50 0.010 0.003 1.056 0.05
0.60 0.60 0.012 0.004 1.283 0.05
0.70 0.70 0.014 0.005 1,513
0.80 0.80 0.017 0.007 1.747
0.90 0.90 0.019 0.008 1.985 0.05
1.00 1.00 0.021 0.010 2,228
1.10 1.10 0.023 0.012 2.475
1.20 1.20 0.025 0.015 2.727
1.26 1.26 0.026 0.016 2.893 0.01 Peak Stage
1.30 1.30 0.027 0.017 2.984
1.40 1.40 0.029 0.020 3.244
1.50 1.50 0.031 0.023 3.509
1.60 1.6D 0.033 0.026 3.779
Filename: TopsoilSaeSiltfenceRevl.sc4 Printed OS-17-2002