2026-02 Existing and Proposed NJ DEP 2-hr WQ Rainfall=1.24" Prepared by Dynamic Engineering Printed 2/10/2026 HydroCAD® 10.20-8a s/n 08640 © 2025 HydroCAD Software Solutions LLC Page 15

[45] Hint: Runoff=Zero

Runoff = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af, Depth= 0.00" Routed to Link 10L: Study Area Study Area WQ MTD A-110 (Total) Runoff by SCS TR-20 method, UH=Delmarva, Weighted-CN, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs NJ DEP 2-hr WQ Rainfall=1.24"

Area (ac) CN Description

0.020 39 >75% Grass cover, Good, HSG A

0.020 39 100.00% Pervious Area

Tc (min) Length (feet) Slope (ft/ft) Velocity (ft/sec) Capacity (cfs) Description

1.4 8 0.0125 0.10 Sheet Flow, A-B Grass: Short n= 0.150 P2= 4.04"

0.2 46 0.0380 3.96 Shallow Concentrated Flow, B-C Paved Kv= 20.3 fps

1.3 297 0.0035 3.68 4.52 Pipe Channel, C-D 15.0" Round Area= 1.2 sf Perm= 3.9' r= 0.31' n= 0.011 Concrete pipe, straight & clean

2026-02 Existing and Proposed NJ DEP 2-hr WQ Rainfall=1.24"

Prepared by Dynamic Engineering Printed 2/10/2026

HydroCAD\circledR 10.20-8a s/n 08640\circledC 2025 HydroCAD Software Solutions LLC Page 16

Runoff = 0.06 cfs @ 1.17 hrs, Volume= 0.003 af, Depth= 1.02"

Routed to Link 18L : Study Area Road Undetained (Total)

Runoff = 0.06 cfs @ 1.17 hrs, Volume= 0.003 af, Depth= 1.02"

Routed to Link 18L : Study Area Road Undetained (Total)

Runoff by SCS TR-20 method, UH=Delmarva, Weighted-CN, Time Span= 0.00-72.00 hrs, dt= 0.05 hrs NJ DEP 2-hr WQ Rainfall=1.24"