2026 05 Storm Water Management Report rcd 5 6 2026

2026-04 Proposed & Existing Conditions NJ DEP 2-hr WQ Rainfall=1.25", P2=4.09" Prepared by Dynamic Engineering Printed 5/5/2026 HydroCAD® 10.20-7a s/n 08640 © 2025 HydroCAD Software Solutions LLC Page 2 Summary for Subcatchment 7S: Proposed Roof Runoff = 0.44 cfs @ 1.08 hrs, Volume= 0.012 af, Depth= 1.03" Routed to Pond 1P : UG BASIN Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-72.00 hrs, dt= 0.001 hrs PROPOSED NJ DEP 2-hr WQ Rainfall=1.25", P2=4.09" Area (ac) CN Description 0.142 98 Roofs, HSG D 0.142 100.00% Impervious Area 7S 8S Tc Length (min) (feet)

(min) (feet) Slope Velocity Capacity Description (ft/ft) (ft/sec) (cfs) 1.0 Direct Entry, Proposed Roof PDA #1 - Impervious to Subcatchment 7S: Proposed Roof Bio Hydrograph 0.48 Runoff 0.44 cfs 0.46 0.44 0.42 NJ DEP 2-hr 1P 2P 9S 0.4 0.38 WQ Rainfall=1.25"

0.38 WQ Rainfall=1.25" 0.36 0.34 P2=4.09" 0.32 UG BASIN BIO BASIN PDA #1 - Pervious to 0.3 Runoff Area=0.142 ac Flow (cfs) 0.28 Bio 0.26 Runoff Volume=0.012 af 0.24 0.22 Runoff Depth=1.03" 0.2 0.18 0.16 Tc=1.0 min

Tc=1.0 min 0.14 CN=98 10S 4L 11S 0.12 0.1 0.08 0.06 0.04 PDA #1 - Impervious POI #1 PDA #1 - Pervious 0.02 0 (On-Site Conveyance) (On-Site Conveyance) 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 Time (hours) Subcat Reach Pond Link Routing Diagram for 2026-04 Proposed & Existing Conditions Prepared by Dynamic Engineering, Printed 5/5/2026 HydroCAD® 10.20-7a s/n 08640 © 2025 HydroCAD Software Solutions LLC