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ZZZ15326 Existing Proposed Drainage - Wetland Type II24-hr 100-yrRainfall=7.06" <br />Prepared by Microsoft Printed 6/8/2017 <br />HydroCAD® 10.00-14 s/n 01542 ©2015 HydroCAD Software Solutions LLC Pape 38 <br />Summary for Pond 2P: WETLAND <br />Inflow Area = 3.961 ac, 6.28% Impervious, Inflow Depth = 3.10" for 100-yr event <br />Inflow = 17.16 cfs @ 12.03 hrs, Volume= 1.023 of <br />Outflow = 1.23 cfs @ 13.17 hrs, Volume= 1.020 af, Atten= 93%, Lag= 68.4 min <br />Discarded = 0.46 cfs @ 13.17 hrs, Volume= 0.842 af <br />Primary = 0.78 cfs @ 13.17 hrs, Volume= 0.178 af <br />Routing by Stor-Ind method, Time Span= 0.00-72.00 hrs, dt= 0.01 hrs <br />Peak Elev= 883.68' @ 13.17 hrs Surf.Area= 24,586 sf Storage= 23,947 cf <br />Plug -Flow detention time= 624.2 min calculated for 1.020 af (100% of inflow) <br />Center -of -Mass det. time= 622.9 min (1,462.1 - 839.2 ) <br />Volume Invert Avail.Storage Storage Description <br />#1 880.00' 32,485 cf Custom Stage Data (Prismatic) Listed below (Recalc) <br />Elevation Surf.Area Inc.Store Cum.Store <br />(feet) (sq-ft) (cubic -feet) (cubic -feet) <br />880.00 372 0 0 <br />882.00 2,380 2,752 2,752 <br />883.00 13,756 8,068 10,820 <br />884.00 29,573 21,665 32,485 <br />Device Routing Invert Outlet Devices <br />#1 Discarded 880.00' 0.800 in/hr Exfiltration over Surface area <br />#2 Primary 883.50' Custom Weir/Orifice, Cv= 2.62 (C= 3.28) <br />Head (feet) 0.00 0.50 <br />Width (feet) 0.00 20.00 <br />Discarded OutFlow Max=0.46 cfs @ 13.17 hrs HW=883.68' (Free Discharge) <br />4-1=Exfiltration (Exfiltration Controls 0.46 cfs) <br />Primary OutFlow Max=0.77 cfs @ 13.17 hrs HW=883.68' (Free Discharge) <br />4-2=Custom Weir/Orifice (Weir Controls 0.77 cfs @ 1.13 fps) <br />