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PROPOSED CONDITIONS <br />MSE 24-hr 3 2yr Rainfall=2.86"16628 SWMP <br /> Printed 12/6/2021Prepared by {enter your company name here} <br />Page 9HydroCAD® 10.00-25 s/n 00837 © 2019 HydroCAD Software Solutions LLC <br />Summary for Pond 1P: FILTRATION BASIN <br />Inflow Area = 1.185 ac, 26.21% Impervious, Inflow Depth = 1.29" for 2yr event <br />Inflow = 2.12 cfs @ 12.18 hrs, Volume= 0.128 af <br />Outflow = 0.42 cfs @ 12.59 hrs, Volume= 0.128 af, Atten= 80%, Lag= 24.7 min <br />Primary = 0.42 cfs @ 12.59 hrs, Volume= 0.128 af <br />Routing by Stor-Ind method, Time Span= 0.00-48.00 hrs, dt= 0.05 hrs <br />Peak Elev= 934.06' @ 12.59 hrs Surf.Area= 3,221 sf Storage= 2,685 cf <br />Plug-Flow detention time= 377.4 min calculated for 0.128 af (100% of inflow) <br />Center-of-Mass det. time= 377.7 min ( 1,172.7 - 795.0 ) <br />Volume Invert Avail.Storage Storage Description <br />#1 933.00' 6,290 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 />933.00 1,850 0 0 <br />935.00 4,440 6,290 6,290 <br />Device Routing Invert Outlet Devices <br />#1 Primary 934.00'10.0' long x 2.0' breadth Broad-Crested Rectangular Weir <br />Head (feet) 0.20 0.40 0.60 0.80 1.00 1.20 1.40 1.60 1.80 2.00 <br />2.50 3.00 3.50 <br />Coef. (English) 2.54 2.61 2.61 2.60 2.66 2.70 2.77 2.89 2.88 <br />2.85 3.07 3.20 3.32 <br />#2 Primary 933.00'0.800 in/hr Exfiltration over Surface area <br />Primary OutFlow Max=0.42 cfs @ 12.59 hrs HW=934.06' (Free Discharge) <br />1=Broad-Crested Rectangular Weir (Weir Controls 0.36 cfs @ 0.61 fps) <br />2=Exfiltration (Exfiltration Controls 0.06 cfs)