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T:\0742\1406Wune11 CityApp\Surface Water\ <br />ER Landfill 06_2011 Type 11 24-hr 25 yr Rainfall=4.70" <br />Prepared by Wenck Associates, Inc. Printed 8/2/2011 <br />HydroCAD® 9.10 s/n 02201 ©2010 HydroCAD Software Solutions LLC Page 10 <br />Summary for Subcatchment 4: 4 <br />Runoff = 5.11 cfs @ 11.98 hrs, Volume= 0.250 af, Depth= 2.63" <br />Runoff by SCS TR-20 method, UH=SCS, Time Span= 0.00-96.00 hrs, dt= 0.02 hrs <br />Type 11 24-hr 25 yr Rainfall=4.70" <br />Area (sfl CN Description <br />49 610 80 Side of landfill <br />49,610 100.00% Pervious Area <br />Tc Length Sfope Velocity Capacity Description <br />(min) (feet) (ft/ft) (ft/sec} (cfs) <br />7.0 900 2.14 Direct Entry, <br />Subcatchment 4: 4 <br />Hydrograph <br />5.11 cfs ~ ~ ~ p Runoff <br />5 ~ I ~ ~ i Type II';24=hr'25 ~yr <br />~. ~ ~ ~ ~ ;Rainfall=~.7p.. ~~ <br />- -- - ~ _~_ ~;- - - ; Runoff Area=4~9;610;sf_.~. <br />4 <br />~~~~ Runoff~Vo'iume=0.250 ~af <br />~ <br />v 3 ; , - ~ - - - - - - - Rt~'noff-Depth=x.63" -~ <br />3 ~ Flow Length-900' <br />o ~ 7 ~ ~. <br />_ ~ = 0 <br />c ~ m,m <br />u. - - - - ,- - - - <br />2- ~ CN=$0 <br />_ _ <br />1 <br />_~ <br />0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 75 80 85 90 95 <br />Time (hours) <br />