09 Stormwater Mgmt Report 122025

NOAA 24-hr D 10-Year-Future Rainfall=6.37", P2=4.09" NJA230139 - REV 2 Prepared by Bohler Engineering, PC HydroCAD® 10.20-7a s/n 03478 © 2025 HydroCAD Software Solutions LLC Printed 12/11/2025 Page 16 Time span=0.00-72.00 hrs, dt=0.10 hrs, 721 points x 9 Runoff by SCS TR-20 method, UH=SCS, Split Pervious/Imperv. Reach routing by Dyn-Stor-Ind method - Pond routing by Dyn-Stor-Ind method Runoff Area=1.930 ac 100.00% Impervious Runoff Depth=6.13" Flow Length=441' Tc=3.1 min CN=0/98 Runoff=11.76 cfs 42,957 cf Subcatchment E1i: Existing Impervious Runoff Area=0.020 ac 0.00% Impervious Runoff Depth=0.56" Flow Length=526' Tc=8.2 min CN=39/0 Runoff=0.00 cfs 40 cf Subcatchment E1p: Existing Pervious Subcatchment P1i: Proposed Impervious Runoff Area=1.600 ac 100.00% Impervious Runoff Depth=6.13" Flow Length=443' Tc=3.0 min CN=0/98 Runoff=9.76 cfs 35,612 cf Runoff Area=0.270 ac 100.00% Impervious Runoff Depth=6.13" Flow Length=30' Slope=0.0150 '/' Tc=0.5 min CN=0/98 Runoff=1.43 cfs 6,009 cf Subcatchment P1i(pp): Proposed Subcatchment P1p: Proposed Pervious Pond PP1: Pervious Pavement Runoff Area=0.090 ac 0.00% Impervious Runoff Depth=0.56" Flow Length=528' Tc=8.1 min CN=39/0 Runoff=0.02 cfs 182 cf Peak Elev=367.15' Storage=1,706 cf Inflow=1.43 cfs 6,009 cf Outflow=1.15 cfs 4,985 cf Link E1: EDA 1A Inflow=11.76 cfs 42,997 cf Primary=11.76 cfs 42,997 cf Link P1: PDA 1A Inflow=10.89 cfs 40,778 cf Primary=10.89 cfs 40,778 cf Total Runoff Area = 170,320 sf Runoff Volume = 84,800 cf Average Runoff Depth = 5.97" 2.81% Pervious = 4,792 sf 97.19% Impervious = 165,528 sf