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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: CYPRUS YAMPA VALLEY COAL <br />• Filename: D:\SEDCAD3\GRTSAE2 User: TDR <br />Date: 01-23-1997 Time: 13:37:28 <br />EAST SIDE OF PAD <br />Storm: 1.80 inches, 10 year-24 hour, SCS Type II <br />Hydrograph Convolution Interval: 0.1 hr <br />NON-POND STRUCTURE INPUT/OUTPUT TABLE <br />J1, B1, S1 <br />Drainage Area from J1, B1, S1, SWS(s)1: 1.4 acres <br />Total Contributing Drainage Area: 1.4 acres <br />POROUS ROCK CHECK DAM INPUTS: <br />Manning's <br />Height Slope Z n Porosity <br />----------------------------------------- <br />----------------------------------------- <br />3.0 0.50 3.0:1 0.035 35.00 <br />Trap Efficiency: 43.30 $ <br />• Runoff Peak Peak Sediment Peak Settleable <br />Volume Discharge Sediment Concentration Concentration 24VW 24AA <br />(ac-ft) (cfs) (tons) (mg/1) ml/1 (ml/1) (ml/1) <br />IN 0.09 0.95 0.4 5453 3.30 1.75 0.47 <br />OUT 0.09 0.95 0.2 3095 1.45 0.77 0.21 <br /> <br />J1, B1, S2 <br />Drainage Area from J1, B1, S2, SWS(s)1: 0.0 acres <br />Total Contributing Drainage Area: 1.4 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 Infi ltration Stiffness ------ Filter ------ <br />Seg n Height Spacing Rate Factor Length Width Slope <br /># (in) <br />---------------------- <br />---- <br />------ <br />----- <br />- (in) <br />------------ <br />----------- (iph) <br />------- <br />------ (N-sq m) (ft) (ft) ($) <br />----------------------------------- <br />--------------------------------- <br />-- <br />--- <br />- <br />1 0.0150 6.0 - <br />1.0 - <br />0.10 -- <br />20.000 500.0 5.0 0.3 <br />Total Filter Peak Critical Filter Sediment <br />Trap Infiltration Infiltration Flow Prone Travel Wedge Depth <br />fficiency Volume Rate Depth Velocity Time Location in Zone D <br />(~) (ac-f t) <br />------------------------ <br />------------------------ (cfs) <br />------------ <br />------------ (inch) <br />------- <br />------- (fps) (hrs) (feet) (inch) <br />------------------------------------ <br />------------------------------------ <br />65.6 0.0198 0.0058 3.772 1.0367 0.3000 3.393 0.0121 <br />MR 97-145 Exhibit Se(~)Pag e 7 of isAPPROVED FEB 1 g 1997~/z3/97 <br />