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prepared by Adam Parker PE (MN,WI,TX,BC,AB) <br />387 -Orono Orchard Road -Drainage GRAYS 24 -hr S1 100 -yr Rainfall= 7.40 " <br />Prepared by {enter your company name here) Printed 6/20/2018 <br />HvdroCAD® 10.00-11 s/n 01636 @2014 HvdroCAD Software Solutions LLC Paae 12 <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>3.45" <br />Flow Length=850' Slope=0.0200 '/' Tc=30.1 min CN=65 Runoff=9.17 cfs 1.025 of <br />Subcatchment PR: Proposed - Runoff Area=160,473 sf 26.43% Impervious Runoff Depth>4.07" <br />Flow Length=850' Slope=0.0200 '/' Tc=25.6 min CN=71 Runoff=11.84 cfs 1.251 of <br />Pond 3P: RG1 Peak Elev=995.78' Storage=25,269 cf Inflow=11.84 cfs 1.251 of <br />Outflow=6.19 cfs 1.212 of <br />Total Runoff Area = 7.253 ac Runoff Volume = 2.276 of Average Runoff Depth = 3.76" <br />80.97% Pervious = 5.873 ac 19.03% Impervious = 1.380 ac <br />