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T:\0742\1406Wune11 CityApp\Surface Water\ <br />ER Landfill 06_2011-dead storage affect Type 1124-hr 25 yr Rainfall=4.70" <br />Prepared by Wenck Associates, Inc. Printed 8/15/2011 <br />HydroCAD® 9.10 s/n 02201 ©2010 HydroCAD Software Solutions LLC Page 11 <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 II 24-hr 25 yr Rainfall=4.70" <br />Area (sf) CN Description <br />49,610 80 Side of landfill <br />49,610 100.00% Pervious Area <br />Tc Length Slope 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 ~ ~ '~ ~ ~ ~ ~ Runoff <br />5 I ~ TYpe 1124'-hr~25,yr- <br />' ~ ~ ~ Rainfall=!,4.70" <br />- - ~ -- - <br />4 -,-, <br />- ~- - -Runoff-Area- 49 610 sfi- <br />., ! ~ ~ kun~off~Voaume=0.250 ~af <br />,,--; _~ <br />' _ _ - 'Ru'nof#-Depth=2.S3";. <br />~,, 3 ~ - - - <br />3 ~ ~ ~ ~: ; Floua- Length; 900' <br />o <br />~, ~Tc ~ 7~0 m'ix~ <br />u_ 2 -- ~ - __, _ _ - - __, 0- <br />C~V-8 <br />'--, _ -~-- ,- -~ ~------~ r- __ _ ~ '-- -- -- - <br />I <br />1 ~ , <br />I <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 />