complete drainage report rev 9

POA-1 2024-05-12 HydroCad - Proposed POA 1B-1 NOAA 24-hr D 10-Year Rainfall=5.22" Prepared by Anderson Consulting Services HydroCAD® 10.20-5c s/n 06666 © 2023 HydroCAD Software Solutions LLC Printed 10/25/2024 Page 49 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=4.98" Flow Length=1,000' Tc=14.1 min CN=98 Runoff=12.98 cfs 61,277 cf Subcatchment 15S: Basin 1 - Perv Runoff Area=114,590 sf 0.00% Impervious Runoff Depth=2.81" Flow Length=1,000' Tc=14.1 min CN=77 Runoff=6.53 cfs 26,815 cf Runoff Area=43,168 sf 100.00% Impervious Runoff Depth=4.98" Flow Length=222' Slope=0.0200 '/' Tc=1.8 min CN=98 Runoff=5.42 cfs 17,925 cf Subcatchment 17S: Basin 5 - Imp Runoff Area=56,858 sf 100.00% Impervious Runoff Depth=4.98" Flow Length=490' Slope=0.0200 '/' Tc=3.6 min CN=98 Runoff=6.99 cfs 23,610 cf Subcatchment 22S: Basin 6 - Imp Runoff Area=51,219 sf 0.00% Impervious Runoff Depth=2.54" Flow Length=490' Slope=0.0200 '/' Tc=3.6 min CN=74 Runoff=3.84 cfs 10,845 cf Subcatchment 23S: Basin 6 - Perv Runoff Area=64,687 sf 0.00% Impervious Runoff Depth=2.81" Flow Length=150' Slope=0.1100 '/' Tc=7.1 min CN=77 Runoff=4.71 cfs 15,137 cf Subcatchment 26S: DA 1 Und - Perv Runoff Area=3,440 sf 0.00% Impervious Runoff Depth=2.54" Flow Length=222' Slope=0.0200 '/' Tc=1.8 min CN=74 Runoff=0.27 cfs 728 cf Subcatchment 27S: Basin 5 - Perv Subcatchment 28S: undetained impervious Runoff Area=300 sf 100.00% Impervious Runoff Depth=4.98" Tc=0.0 min CN=98 Runoff=0.04 cfs 125 cf Pond 16P: Basin 1 Peak Elev=544.64' Storage=51,866 cf Inflow=20.44 cfs 89,159 cf Outflow=3.24 cfs 72,781 cf Pond 18P: Basin 5 Peak Elev=579.44' Storage=2,595 cf Inflow=5.69 cfs 18,653 cf Discarded=1.37 cfs 17,616 cf Primary=1.06 cfs 1,038 cf Outflow=2.43 cfs 18,653 cf Pond 24P: Basin 6 Peak Elev=600.05' Storage=784 cf Inflow=10.83 cfs 34,455 cf Discarded=8.27 cfs 34,425 cf Primary=0.13 cfs 30 cf Outflow=8.40 cfs 34,455 cf Link 25L: POA 1 Inflow=5.27 cfs 88,042 cf Primary=5.27 cfs 88,042 cf Total Runoff Area = 481,833 sf Runoff Volume = 156,462 cf Average Runoff Depth = 3.90" 48.55% Pervious = 233,936 sf 51.45% Impervious = 247,897 sf