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PERMFILE137536
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PERMFILE137536
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Last modified
8/24/2016 10:38:10 PM
Creation date
11/26/2007 6:09:56 AM
Metadata
Fields
Template:
DRMS Permit Index
Permit No
C1981022
IBM Index Class Name
Permit File
Doc Date
12/11/2001
Doc Name
METHODOLOGY & ASSUMPTIONS FOR HYDROLOGY & SEDIMENTOLOGY CALCULATIONS
Section_Exhibit Name
Exhibit 2.05-E3 SECTION 5
Media Type
D
Archive
No
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• Topsoil Stockpile <br />Sod Type: C <br />Ground Covet Type: Herbaceous <br />Ground Covet: Poor <br />CN : 87 <br />Reclaimed Areas <br />Soil Type: C <br />Ground Cover Type: Herbaceous <br />Ground Covet: Fair <br />CN : 81 <br />Outslope Areas <br />Soil Type: C <br />Ground Covet Type: Herbaceous <br />Ground Cover: Poor <br />CN : 87 <br />1.2 SEDCAD SEDIMENTATION AND POND DESIGN COMPUTER MODEL <br />The calculations to detemaine the sediment yield were performed by the use of the SEDCAD <br />Computer Model developed by Civd Software Design. <br />The sedimentation program was applied to develop a sedimentation graph using the Revised <br />Utuversal Soil Loss Equation (RUBLE) and the Eollo~ving input parameters. <br />Y = 95x(Vx QP / S6 XKSLSSCP <br />Where: Y <br />(V~~ <br />VP <br />• h <br />LS <br />CP <br />Sediment yield (tons) <br />Runoff volume (acre-feet) <br />Peak discharge (cfs) <br />Soil erodibility factor <br />Representative length-slope factor <br />Control practice factor <br />
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