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Civil Software Desiqn -- SEDCAD+ Version 3.1 <br />Copyright (C) 1987-1992. Pamela J. Schwab. All rights reserved. <br />Company Name: GREYSTONE DEVELOPMENT CONSULTANTS <br />Filename: C:\SEDCAD3\CR7\SEDA10 User: bqw <br />Date: 01-29-1996 Time: 13:51:4'7 <br />Exhibit 7 Midterm Review, Sedimentation Trap <br />Storm: 2.10 inches, 10 year-24 hour, SCS Type II <br />Hydrograph Convolution Interval: 0.1 hr <br />NON-POND STRUCTURE INPUT/OUTPUT TABLE <br />n <br />LJ <br />............................................................................... <br />EQUILIBRIUM SLOPE NEGATIVE <br />............................................................................... <br />............................................................................... <br />EQUILIBRIUM SLOPE NEGATIVE <br />............................................................................... <br />J1, B1, S1 <br />Ditches lA & 1B(p) <br />Drainage Area from J1, B1, S1, SWS(s)1-2: 10.0 acres <br />Total Contributing Drainage Area: 10.0 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) ($) <br />1 0.0140 7.0 2.0 0.03 20.000 20.0 100.0 3.0 <br />Total Filter Peak Critical Filter Sediment <br />Trap Infiltration Infiltration Flow Prone Travel Wedge Depth <br />Efficiency Volume Rate Depth Velocity Time Location in Zone D <br />($) (ac-ft) (cfs) (inch) (fps) ~;hrs) (feet) (inch) <br />97.9 0.0019 0.0014 0.120 1.0367 0.1000 0.233 0.0007 <br />Runoff Peak <br />Volume Discharge <br />(ac-ft) (cfs) <br />-------------- ---- <br />]:N 0.26 0.79 <br />OUT 0.25 0.79 <br />Sediment <br />(tons) <br />0.0 <br />0.0 <br />Peak Sediment <br />Concentration <br />(mg/1) <br />108 <br />3 <br />Peak Settleable <br />Concentration <br />ml/1 <br />0.08 <br />0.00 <br />24VW 24AA <br />(ml/1) (ml/1) <br />0.04 0.02 <br />0.00 0.00 <br />***#**tk*~F#~k****!*tk#~k**#****~F**tk#iF**vk**aF#*ak*ak**#ak**i*A#~k ak**#'1**~It*ftki *t4f+k #r tk*#tFf• <br />............................................................................... <br />EQUILIBRIUM SIAPE NEGATIVE <br />7-36 8 May 1996 <br />