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2001-12-11_PERMIT FILE - C1996084 (7)
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2001-12-11_PERMIT FILE - C1996084 (7)
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Last modified
10/13/2016 10:41:12 AM
Creation date
11/24/2007 9:16:05 AM
Metadata
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Template:
DRMS Permit Index
Permit No
C1996084
IBM Index Class Name
Permit File
Doc Date
12/11/2001
Section_Exhibit Name
EXHIBIT 15-20 MINE AREA P4 SEDIMENT CONTROL POND 4-3
Media Type
D
Archive
No
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SEDCAD 4 for Windows <br />Copyright 1999 Pamela J. Schwab <br />Civil Software Design <br />• <br />Structure #4 (Null <br />east fill ditch <br />Structure #3 jNull) <br />west fill ditch <br />Structure #2 (Null1 <br />south ditch <br />Structure #1 (Null) <br />north ditch <br />Structure #5 (Pond) <br />pond <br />Pond Inputs: <br />• <br />Structure Detai/; <br />Initial Pool Elev: 6,667.50 <br />Initial Pool: 0.52 ac-ft <br />'Sediment Storage: 2.89 ac-ft <br />Dead Space: 20.00 <br />*Sediment capacity based on Average Annual R of70.0 far 3 year(s) <br />Perforated Riser <br />Riser Riser Height Barrel Barrel Barrel Slope Number of <br />' <br />Diameter (R) Diameter Length (ft) (%) Manning <br />s n Spillway Elev Holes per <br />(in) (in) Elev <br />8.00 8.00 6.00 70.00 3.00 0.0240 6,669.00 3 <br />Pond Results: <br />Peak Elevation: 6,669.73 <br />H'graph Detention Tme: 11.40 hrs <br />Pond Model: CSTRS <br />Dewater Time: 2.11 days <br />Trap Efficiency: 90.43 <br />Dewatering time is calculated from peak stage to lowest spillway <br />• <br />Elevation-Capacity-Discharge Table <br />Filename: Pond 4-3.sc4 Printed 04.17-2001 <br />
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