1240815StormWaterManagementReportrcd 3 12 2026

512-516 Pleasant Valley Way, West Orange 1240815-pipes3-C NOAA 24-hr D 2-Year-2020 Rainfall=3.47", P2=3.47" Prepared by Casey & Keller, Inc Printed 2/4/2026 HydroCAD® 10.20-7a s/n 03272 © 2025 HydroCAD Software Solutions LLC Subcatchment 2: Parking Lot Hydrograph 0.65 Runoff 0.59 cfs 0.6 NOAA 24-hr D 0.55 2-Year-2020 Rainfall=3.47" 0.5 P2=3.47" 0.45 0.4 Runoff Area=7,658 sf Runoff Volume=0.044 af Flow (cfs) 0.35 0.3 Runoff Depth=2.97" 0.25 Flow Length=92' 0.2 Tc=1.0 min 0.15 CN=74/98 0.1 0.05 0 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) 19