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T:\0742\1406\June11 CityApp\SurFace Water\ <br />ER Landfill 06_2011-dead storage affect Type ll 24-hr 100 yr Rainfall=5.90" <br />Prepared by Wenck Associates, Inc. Printed 8/15/2011 <br />HydroCAD® 9.10 s/n 02201 ©2010 HydroCAD Software Solutions LLC Paae 44 <br />Time span=0.00-96.00 hrs, dt=0.02 hrs, 4801 points <br />Runoff by SCS TR-20 method, UH=SCS <br />Reach routing by Stor-Ind method -Pond routing by Stor-Ind method <br />Subcatchment1A: 1A RunoffArea=49,776 sf 0.00% Impervious Runoff Depth=3.39" <br />Flow Length=600' Tc=7.0 min CN=77 Runoff=6.60 cfs 0.323 of <br />SubcatChment 1 B: 1 B Runoff Area=392,876 sf 0.00% Impervious Runoff Depth=3.39" <br />Flow Length=1,110' Tc=12.5 min CN=77 Runoff=42.97 cfs 2.549 of <br />SubcatChment2: 2 Runoff Area=90,087 sf 0.00% Impervious Runoff Depth=3.69" <br />Flow Length=750' Tc=7.0 min CN=80 Runoff=12.86 cfs 0.636 of <br />Subcatchment3: 3 RunoffArea=117,164 sf 0.00% Impervious Runoff Depth=3.69" <br />Flow Length=750' Tc=7.0 min CN=80 Runoff=16.73 cfs 0.827 of <br />Subcatchment4: 4 Runoff Area=49,610 sf 0.00% Impervious Runoff Depth=3.69" <br />Flow Length=900' Tc=7.0 min CN=80 Runoff=7.08 cfs 0.350 of <br />Subcatchment5: 4 Runoff Area=104,726 sf 0.00% Impervious Runoff Depth=3.69" <br />Tc=7.0 min CN=80 Runoff=14.95 cfs 0.740 of <br />Subcatchment6: 4 Runoff Area=118,421 sf 0.00% Impervious Runoff Depth=3.69" <br />Tc=7.0 min CN=80 Runoff=16.91 cfs 0.836 of <br />Subcatchment7: 7 RunoffArea=382,086 sf 0.00% Impervious Runoff Depth=3.39" <br />Flow Length=1,220' Tc=13.1 min CN=77 Runoff=40.96 cfs 2.479 of <br />Subcatchment8: 8 Runoff Area=95,406 sf 0.00% Impervious Runoff Depth=3.69" <br />Flow Length=900' Tc=7.0 min CN=80 Runoff=13.62 cfs 0.674 of <br />Subcatchment9: 8 Runoff Area=47,226 sf 0.00% Impervious Runoff Depth=3.69" <br />Flow Length=950' Tc=7.0 min CN=80 Runoff=6.74 cfs 0.333 of <br />Subcatchment10: 10 RunoffArea=71,666 sf 0.00% Impervious Runoff Depth=3.69" <br />Flow Length=750' Tc=7.0 min CN=80 Runoff=10.23 cfs 0.506 of <br />Subcatchment11: 11 Runoff Area=97,074 sf 0.00% Impervious Runoff Depth=3.69" <br />Flow Length=805' Tc=6.4 min CN=80 Runoff=14.16 cfs 0.685 of <br />Subcatchment12: 12 RunoffArea=16,047 sf 0.00% Impervious Runoff Depth=3.69" <br />Flow Length=805' Tc=6.4 min CN=80 Runoff=2.34 cfs 0.113 of <br />Subcatchment25S: watershed NW of South Runoff Area=5.930 ac 2.02% Impervious Runoff Depth=0.80" <br />Tc=15.0 min CN=46 Runoff=4.19 cfs 0.397 of <br />Subcatchment26S: wetland west of RR trail Runoff Area=9.930 ac 0.00% Impervious Runoff Depth=1.62" <br />Tc=30.0 min CN=57 Runoff=12.44 cfs 1.343 of <br />SubcatchmentEX-25S: Existing watershed Runoff Area=5.930 ac 2.02% Impervious Runoff Depth=0.80" <br />Tc=15.0 min CN=46 Runoff=4.19 cfs 0.397 of <br />