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2018-04-02_PERMIT FILE - C1981019A (20)
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2018-04-02_PERMIT FILE - C1981019A (20)
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Last modified
5/10/2023 9:21:29 AM
Creation date
4/25/2018 8:26:16 AM
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Template:
DRMS Permit Index
Permit No
C1981019A
IBM Index Class Name
Permit File
Doc Date
4/2/2018
Doc Name
Sediment Pond and Associated Modeling During Mining
Section_Exhibit Name
Volume 18 Exhibit 7 Item 23 Part C
Media Type
D
Archive
Yes
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SEDCAD 4 for Windows <br />11 <br />Subwatershed Hydrology Detail; <br />Stru <br /># <br />SWS <br /># <br />SWS Area <br />(ac) <br />Time of <br />Conc <br />(hrs) <br />Musk K <br />(hrs) <br />Musk X <br />Curve <br />Number <br />UHS <br />Peak <br />Discharge <br />(cfs) <br />Runoff <br />Volume <br />(ac -ft) <br />#11 <br />1 <br />20.000 <br />0.058 <br />0.000 <br />0.000 <br />74.000 <br />F <br />11.62 <br />0.831 <br />153.56 <br />2 <br />3.500 <br />0.109 <br />0.000 <br />0.000 <br />47.000 <br />S <br />0.00 <br />0.000 <br />3 <br />15.200 <br />0.056 <br />0.000 <br />0.000 <br />74.000 <br />F <br />8.83 <br />0.631 <br />#4 <br />4 <br />11.300 <br />0.095 <br />0.000 <br />0.000 <br />47.000 <br />S <br />0.00 <br />0.000 <br />Time of Concentration: <br />50.000 <br />0.101 <br />#4 <br />2 <br />20.45 <br />1.462 <br />#8 <br />1 <br />82.100 <br />0.059 <br />0.000 <br />0.000 <br />74.000 <br />M <br />47.70 <br />3.410 <br />2 <br />8.500 <br />0.147 <br />0.000 <br />0.000 <br />85.000 <br />F <br />7.99 <br />0.697 <br />3 <br />23.300 <br />0.050 <br />0.000 <br />0.000 <br />74.000 <br />F <br />13.54 <br />0.968 <br />Time of Concentration: <br />4 <br />1.900 <br />0.067 <br />0.000 <br />0.000 <br />85.000 <br />F <br />2.10 <br />0.161 <br />115.800 <br />70.85 <br />5.236 <br />#7 <br />115.800 <br />70.85 <br />5.236 <br />#6 <br />115.800 <br />70.85 <br />5.236 <br />#5 <br />115.800 <br />6.45 <br />4.701 <br />#4 <br />1 <br />38.000 <br />0.101 <br />0.000 <br />0.000 <br />74.000 <br />M <br />22.08 <br />1.579 <br />2 <br />0.800 <br />0.031 <br />0.000 <br />0.000 <br />85.000 <br />F <br />0.88 <br />0.068 <br />154.600 <br />23.70 <br />6.347 <br />#3 <br />154.600 <br />23.70 <br />6.347 <br />#2 <br />1 <br />7.200 <br />0.051 <br />0.000 <br />0.000 <br />47.000 <br />S <br />0.00 <br />0.000 <br />211.800 <br />44.15 <br />7.809 <br />#1 <br />211.800 <br />12.68 <br />7.793 <br />Subwatershed Time of Concentration Details; <br />Stru <br />SWS <br />Land Flow Condition <br />Slope (%) <br />Vert. Dist. <br />Horiz. Dist. <br />Velocity <br />Time (hrs) <br /># <br /># <br />(ft) <br />(ft) <br />(fps) <br />#2 <br />1 <br />3. Short grass pasture <br />22.00 <br />153.56 <br />698.00 <br />3.750 <br />0.051 <br />#2 <br />1 <br />Time of Concentration: <br />0.051 <br />5. Nearly bare and untilled, and <br />#4 <br />1 <br />alluvial valley fans <br />28.00 <br />540.12 <br />1,929.00 <br />5.290 <br />0.101 <br />#4 <br />1 <br />Time of Concentration: <br />0.101 <br />#4 <br />2 <br />5. Nearly bare and untilled, and <br />0.50 <br />0.25 <br />50.00 <br />0.700 <br />0.019 <br />alluvial valley fans <br />8. Large gullies, diversions, and low <br />flowing streams <br />21.00 <br />127.25 <br />606.00 <br />13.740 <br />0.012 <br />#4 <br />2 <br />Time of Concentration: <br />0.031 <br />Filename: West Side Temp Spoil Pile Model 25yr24hr.sc4 Printed 01-17-2018 <br />Page Exh. 7-23C-41 Revision Date: 1/19/18 <br />Revision No.: TR -118 <br />
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