102 Sams -REV 12-02-25 NJ DEP 2-hr NJDEP Rainfall=1.25" Prepared by Haler Consulting Printed 04/12/2025 HydroCAD® 10.20-2h s/n 10351 © 2024 HydroCAD Software Solutions LLC Page 4
Summary for Subcatchment 171S: DA P1 (Impervious)
Runoff = 2.10 cfs @ 1.09 hrs, Volume= 2,727 cf, Depth= 1.03" Routed to Pond 174P : WQ Infiltration Basin #1
Runoff by SCS TR-20 method, UH=Delmarva, Split Pervious/Imperv. UI as Pervious, Time Span= 0.00-72.00 hrs, dt= NJ DEP 2-hr NJDEP Rainfall=1.25"
Area (sf)CNDescription
31,62598Paved parking, HSG A
098Unconnected pavement, HSG A
098Unconnected pavement, HSG A
098Paved parking, HSG A
098Unconnected pavement, HSG A
31,62598Weighted Average
31,62598100.00% Impervious Area
Tc (min)Length (feet)Slope (ft/ft) Velocity (ft/sec) Capacity (cfs)
1.21000.0200 1.42
1.83500.0250 3.21
3.0450Total
Subcatchment 171S: DA P1 (Impervious)