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prepared by Adam Parker PE (MN,WI,TX,BC,AB) <br />387 -Orono Orchard Road -Drainage GRAYS 24 -hr S1 1 -yr Rainfall=2.50" <br />Prepared by {enter your company name here} Printed 6/20/2018 <br />HvdroCADO 10.00-11 s/n 01636 © 2014 HvdroCAD Software Solutions LLC Paae 2 <br />Time span=0.00-24.00 hrs, dt=0.05 hrs, 481 points <br />Runoff by SCS TR -20 method, UH=SCS, Weighted -Q <br />Reach routing by Stor-Ind+Trans method - Pond routing by Stor-Ind method <br />Subcatchment EX: Existing - Lot 2 area Runoff Area=155,473 sf 11.40% Impervious Runoff Depth>0.43" <br />Flow Length=850' Slope=0.0200 '/' Tc=30.1 min CN=65 Runoff=0.78 cfs 0.127 of <br />Subcatchment PR: Proposed - Runoff Area=160,473 sf 26.43% Impervious Runoff Depth>0.74" <br />Flow Length=850' Slope=0.0200 '/' Tc=25.6 min CN=71 Runoff=1.79 cfs 0.227 of <br />Pond 3P: RG1 Peak Elev=993.67' Storage=7,437 cf Inflow=1.79 cfs 0.227 of <br />Outflow=0.62 cfs 0.212 of <br />Total Runoff Area = 7.253 ac Runoff Volume = 0.354 of Average Runoff Depth = 0.59" <br />80.97% Pervious = 5.873 ac 19.03% Impervious = 1.380 ac <br />