complete drainage report rev 9

POA-1 2024-05-12 HydroCad - Proposed POA 1B-1 NOAA 24-hr D 100-Year Rainfall=8.66" Prepared by Anderson Consulting Services HydroCAD® 10.20-5c s/n 06666 © 2023 HydroCAD Software Solutions LLC Printed 10/25/2024 Page 91 Time span=0.00-72.00 hrs, dt=0.01 hrs, 7201 points Runoff by SCS TR-20 method, UH=SCS, Weighted-CN Reach routing by Stor-Ind+Trans method - Pond routing by Stor-Ind method Subcatchment 14S: Basin 1 - Imp Runoff Area=147,571 sf 100.00% Impervious Runoff Depth=8.42" Flow Length=1,000' Tc=14.1 min CN=98 Runoff=21.60 cfs 103,543 cf Subcatchment 15S: Basin 1 - Perv Runoff Area=114,590 sf 0.00% Impervious Runoff Depth=5.88" Flow Length=1,000' Tc=14.1 min CN=77 Runoff=13.48 cfs 56,178 cf Runoff Area=43,168 sf 100.00% Impervious Runoff Depth=8.42" Flow Length=222' Slope=0.0200 '/' Tc=1.8 min CN=98 Runoff=9.01 cfs 30,289 cf Subcatchment 17S: Basin 5 - Imp Runoff Area=56,858 sf 100.00% Impervious Runoff Depth=8.42" Flow Length=490' Slope=0.0200 '/' Tc=3.6 min CN=98 Runoff=11.63 cfs 39,895 cf Subcatchment 22S: Basin 6 - Imp Runoff Area=51,219 sf 0.00% Impervious Runoff Depth=5.52" Flow Length=490' Slope=0.0200 '/' Tc=3.6 min CN=74 Runoff=8.16 cfs 23,561 cf Subcatchment 23S: Basin 6 - Perv Runoff Area=64,687 sf 0.00% Impervious Runoff Depth=5.88" Flow Length=150' Slope=0.1100 '/' Tc=7.1 min CN=77 Runoff=9.65 cfs 31,713 cf Subcatchment 26S: DA 1 Und - Perv Runoff Area=3,440 sf 0.00% Impervious Runoff Depth=5.52" Flow Length=222' Slope=0.0200 '/' Tc=1.8 min CN=74 Runoff=0.57 cfs 1,582 cf Subcatchment 27S: Basin 5 - Perv Subcatchment 28S: undetained impervious Runoff Area=300 sf 100.00% Impervious Runoff Depth=8.42" Tc=0.0 min CN=98 Runoff=0.06 cfs 210 cf Pond 16P: Basin 1 Peak Elev=545.30' Storage=83,095 cf Inflow=41.28 cfs 167,378 cf Outflow=12.27 cfs 150,907 cf Pond 18P: Basin 5 Peak Elev=579.76' Storage=4,513 cf Inflow=9.58 cfs 31,871 cf Discarded=1.37 cfs 26,452 cf Primary=4.67 cfs 5,419 cf Outflow=6.04 cfs 31,871 cf Pond 24P: Basin 6 Peak Elev=600.31' Storage=4,419 cf Inflow=19.78 cfs 63,455 cf Discarded=8.27 cfs 61,217 cf Primary=3.02 cfs 2,238 cf Outflow=11.29 cfs 63,455 cf Link 25L: POA 1 Inflow=14.86 cfs 182,831 cf Primary=14.86 cfs 182,831 cf Total Runoff Area = 481,833 sf Runoff Volume = 286,972 cf Average Runoff Depth = 7.15" 48.55% Pervious = 233,936 sf 51.45% Impervious = 247,897 sf