09 Stormwater Mgmt Report 122025

NOAA 24-hr D 2-Year-Current Rainfall=3.47", P2=3.47" 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 6 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=3.24" Flow Length=441' Tc=3.2 min CN=0/98 Runoff=6.36 cfs 22,675 cf Subcatchment E1i: Existing Impervious Runoff Area=0.020 ac 0.00% Impervious Runoff Depth=0.01" Flow Length=526' Tc=8.6 min CN=39/0 Runoff=0.00 cfs 1 cf Subcatchment E1p: Existing Pervious Subcatchment P1i: Proposed Impervious Runoff Area=1.600 ac 100.00% Impervious Runoff Depth=3.24" Flow Length=443' Tc=3.1 min CN=0/98 Runoff=5.27 cfs 18,798 cf Runoff Area=0.270 ac 100.00% Impervious Runoff Depth=3.24" Flow Length=30' Slope=0.0150 '/' Tc=0.5 min CN=0/98 Runoff=0.77 cfs 3,172 cf Subcatchment P1i(pp): Proposed Subcatchment P1p: Proposed Pervious Runoff Area=0.090 ac 0.00% Impervious Runoff Depth=0.01" Flow Length=528' Tc=8.5 min CN=39/0 Runoff=0.00 cfs 2 cf Pond PP1: Pervious Pavement Peak Elev=367.07' Storage=1,436 cf Inflow=0.77 cfs 3,172 cf Outflow=0.54 cfs 2,148 cf Link E1: EDA 1A Inflow=6.36 cfs 22,676 cf Primary=6.36 cfs 22,676 cf Link P1: PDA 1A Inflow=5.78 cfs 20,948 cf Primary=5.78 cfs 20,948 cf Total Runoff Area = 170,320 sf Runoff Volume = 44,648 cf Average Runoff Depth = 3.15" 2.81% Pervious = 4,792 sf 97.19% Impervious = 165,528 sf