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T:\074211406\June11 CityApp\Surface Water\ <br />ER Landfill 06_2011 Type 1I 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 Paae 14 <br />Summary for Subcatchment 8: 8 <br />Runoff = 9.84 cfs @ 11.98 hrs, Volume= 0.481 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 (sfl CN Description <br />95,406 80 side of Landfill <br />95,406 100.00% 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 8: 8 <br />Hydrograph <br />; <br />11 9.84 CfS ~ ~_ ~ ~ '; 0 Runoff <br />'_ -_ __ <br />10 _ <br />_; _ _ ~ _ ; . _ _ ~' ' Type II 24-hr _25 ~-r <br />9 <br />_ ~ _ . _ - - -. ' _ _ ' _ Rainfall=x.70'' _ <br />8 ~ ~ ~ ~ ~ ~ ff = 5 <br />_ _~un'_o ,_ Area _ 9 .,.406 sf_ ; <br />- , <br />_ ; <br />; <br />7 , <br />~~ ~ ~ _ _ _ _'Runoff ~loJum;e=_0 4~1_ ~f_ 7 <br />~ 6 - ~ , <br />V I ; i <br />. _ _ , . ~ _Runoff Depth=2.63" <br />_- _,I - ---- - _ -_ , <br />5 ~ ~ ~ ; ; <br />3 <br />o _ , .. _ . _: - _ _ _ _ ~_ Flow Len_gth_,_900' <br />4 ~ Tc=7.0 min <br />3 ~ ~ ,- ~ CN-80 <br />2 <br />1 <br />; <br />0 ~ ...,., . . ,., c ~., . ,.. , .. .. ,.. ,.. .. ~ . ,.. .. ,... . <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 />