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2010-11-19_PERMIT FILE - C1980007 (37)
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2010-11-19_PERMIT FILE - C1980007 (37)
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Last modified
8/24/2016 4:27:08 PM
Creation date
3/24/2011 10:24:02 AM
Metadata
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Template:
DRMS Permit Index
Permit No
C1980007
IBM Index Class Name
Permit File
Doc Date
11/19/2010
Doc Name
WEST ELK MINE - SMALL AREA EXEMPTIONS
Section_Exhibit Name
Exhibit 66 SAE Sylvester Gulch
Media Type
D
Archive
No
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Civil Software Design -- SEDCAD+ Version 3.1 <br />Copyright (C) 1987 -1992. Pamela J. Schwab. All rights reserved. <br />Company Name: MOUNTAIN COAL WEST ELK MINE <br />Filename: C: \SEDCAD3 \ELEBORSA User: C. Johnston <br />Date: 08 -18 -1999 Time: 13:09:56 <br />Electric Borehole SAE <br />Storm: 1.90 inches, 10 year -24 hour, SCS Type II <br />Hydrograph Convolution Interval: 0.1 hr <br />NON -POND STRUCTURE INPUT /OUTPUT TABLE <br />J2, B1, Sl <br />Elec. Borehole Slope <br />Drainage Area from J2, Bl, Sl, SWS(s)1: 0.1 acres <br />Total Contributing Drainage Area: 0.4 acres <br />GRASS FILTER INPUTS: <br />Bulk Specific Gravity: 1.25 <br />Initial Depth of Sediment in Zone D: 0.00 inches <br />Manning's Grass Grass Infiltration Stiffness - - - - -- Filter - - - - -- <br />Seg n Height Spacing Rate Factor Length Width Slope <br /># (in) (in) (iph) (N -sq m) (ft) (ft) (o) <br />------------------------ ------------- <br />1 0.0200 4.0 2.0 0.30 20.000 65.0 110.0 33.0 <br />Total Filter Peak Critical Filter Sediment <br />Trap Infiltration Infiltration Flow Prone Travel Wedge Depth <br />Efficiency Volume Rate Depth Velocity Time Location in Zone D <br />(�) (ac -ft) (cfs) (inch) (fps) (hrs) (feet) (inch) <br />----------------------- -------------------- <br />90.9 0.0105 0.0497 0.040 1.0367 0.1000 0.000 0.0026 <br />Runoff Peak Peak Sediment Peak Settleable <br />Volume Discharge Sediment Concentration Concentration 24VW 24AA <br />(ac -ft) (cfs) (tons) (mg /1) ml /l (ml /1) (ml /1) <br />IN 0.03 0.34 0.1 7429 2.85 1.00 0.06 <br />OUT 0.02 0.29 0.0 1001 0.00 0.00 0.00 <br />
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