complete drainage report rev 9

POA-2 NJ DEP 2-hr WQ Rainfall=1.25" 2024-05-12 HydroCad - Proposed POA 2B-1 Prepared by Anderson Consulting Services HydroCAD® 10.20-5c s/n 06666 © 2023 HydroCAD Software Solutions LLC Hydrograph for Subcatchment 45S: Basin 11 - Imp Time Precip. Excess (hours) (inches) (inches) 0.00 0.00 0.00 0.80 0.23 0.09 1.60 1.18 0.97 2.40 1.25 1.03 3.20 1.25 1.03 4.00 1.25 1.03 4.80 1.25 1.03 5.60 1.25 1.03 6.40 1.25 1.03 7.20 1.25 1.03 8.00 1.25 1.03 8.80 1.25 1.03 9.60 1.25 1.03 10.40 1.25 1.03 11.20 1.25 1.03 12.00 1.25 1.03 12.80 1.25 1.03 13.60 1.25 1.03 14.40 1.25 1.03 15.20 1.25 1.03 16.00 1.25 1.03 16.80 1.25 1.03 17.60 1.25 1.03 18.40 1.25 1.03 19.20 1.25 1.03 20.00 1.25 1.03 20.80 1.25 1.03 21.60 1.25 1.03 22.40 1.25 1.03 23.20 1.25 1.03 24.00 1.25 1.03 24.80 1.25 1.03 25.60 1.25 1.03 26.40 1.25 1.03 27.20 1.25 1.03 28.00 1.25 1.03 28.80 1.25 1.03 29.60 1.25 1.03 30.40 1.25 1.03 31.20 1.25 1.03 32.00 1.25 1.03 32.80 1.25 1.03 33.60 1.25 1.03 34.40 1.25 1.03 35.20 1.25 1.03 36.00 1.25 1.03 36.80 1.25 1.03 37.60 1.25 1.03 38.40 1.25 1.03 39.20 1.25 1.03 40.00 1.25 1.03 Runoff (cfs) 0.00 0.34 0.52 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Time Precip. Excess (hours) (inches)

00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Time Precip. Excess (hours) (inches) (inches) 40.80 1.25 1.03 41.60 1.25 1.03 42.40 1.25 1.03 43.20 1.25 1.03 44.00 1.25 1.03 44.80 1.25 1.03 45.60 1.25 1.03 46.40 1.25 1.03 47.20 1.25 1.03 48.00 1.25 1.03 48.80 1.25 1.03 49.60 1.25 1.03 50.40 1.25 1.03 51.20 1.25 1.03 52.00 1.25 1.03 52.80 1.25 1.03 53.60 1.25 1.03 54.40 1.25 1.03 55.20 1.25 1.03 56.00 1.25 1.03 56.80 1.25 1.03 57.60 1.25 1.03 58.40 1.25 1.03 59.20 1.25 1.03 60.00 1.25 1.03 60.80 1.25 1.03 61.60 1.25 1.03 62.40 1.25 1.03 63.20 1.25 1.03 64.00 1.25 1.03 64.80 1.25 1.03 65.60 1.25 1.03 66.40 1.25 1.03 67.20 1.25 1.03 68.00 1.25 1.03 68.80 1.25 1.03 69.60 1.25 1.03 70.40 1.25 1.03 71.20 1.25 1.03 72.00 1.25 1.03 72.80 1.25 1.03 73.60 1.25 1.03 74.40 1.25 1.03 75.20 1.25 1.03 76.00 1.25 1.03 76.80 1.25 1.03 77.60 1.25 1.03 78.40 1.25 1.03 79.20 1.25 1.03 80.00 1.25 1.03 Runoff (cfs) 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Printed 10/25/2024 Page 355

POA-2 NJ DEP 2-hr WQ Rainfall=1.25" 2024-05-12 HydroCad - Proposed POA 2B-1 Prepared by Anderson Consulting Services HydroCAD® 10.20-5c s/n 06666 © 2023 HydroCAD Software Solutions LLC Printed 10/25/2024 Page 356 Summary for Subcatchment 46S: Basin 11 - Perv Runoff = 0.11 cfs @ 1.24 hrs, Volume= Routed to Pond 33P : Basin 11 204 cf, Depth= 0.10" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-80.00 hrs, dt= 0.04 hrs NJ DEP 2-hr WQ Rainfall=1.25" Area (sf) 7,658 16,544 24,202 24,202 CN 80 74 76 Description >75% Grass cover, Good, HSG D >75% Grass cover, Good, HSG C Weighted Average 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 8.9 83 0.0400 0.15 Sheet Flow, Sheet Flow (A-B) Grass: Dense n= 0.240 P2= 3.47" Using McCuen-Spiess flow length 0.9 150 0.0330 2.92 Shallow Concentrated Flow, SCF (B-C) Unpaved Kv= 16.1 fps 9.8 233 Total Sheet Flow (A-B) SCF (B-C) Subcatchment 46S: Basin 11 - Perv

POA-2 NJ DEP 2-hr WQ Rainfall=1.25" 2024-05-12 HydroCad - Proposed POA 2B-1 Prepared by Anderson Consulting Services HydroCAD® 10.20-5c s/n 06666 © 2023 HydroCAD Software Solutions LLC Printed 10/25/2024 Page 357 Subcatchment 46S: Basin 11 - Perv Flow (cfs) Hydrograph 0.12 0.115 0.11 cfs 0.11 0.105 0.1 0.095 0.09 0.085 0.08 0.075 0.07 0.065 0.06 0.055 0.05 0.045 0.04 0.035 0.03 0.025 0.02 0.015 0.01 0.005 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 74 76 78 80 Time (hours) NJ DEP 2-hr WQ Rainfall=1.25" Runoff Area=24,202 sf Runoff Volume=204 cf Runoff Depth=0.10" Flow Length=233' Tc=9.8 min CN=76 Runoff

POA-2 NJ DEP 2-hr WQ Rainfall=1.25" 2024-05-12 HydroCad - Proposed POA 2B-1 Prepared by Anderson Consulting Services HydroCAD® 10.20-5c s/n 06666 © 2023 HydroCAD Software Solutions LLC Hydrograph for Subcatchment 46S: Basin 11 - Perv Time Precip. Excess (hours) (inches) (inches) 0.00 0.00 0.00 0.80 0.23 0.00 1.60 1.18 0.08 2.40 1.25 0.10 3.20 1.25 0.10 4.00 1.25 0.10 4.80 1.25 0.10 5.60 1.25 0.10 6.40 1.25 0.10 7.20 1.25 0.10 8.00 1.25 0.10 8.80 1.25 0.10 9.60 1.25 0.10 10.40 1.25 0.10 11.20 1.25 0.10 12.00 1.25 0.10 12.80 1.25 0.10 13.60 1.25 0.10 14.40 1.25 0.10 15.20 1.25 0.10 16.00 1.25 0.10 16.80 1.25 0.10 17.60 1.25 0.10 18.40 1.25 0.10 19.20 1.25 0.10 20.00 1.25 0.10 20.80 1.25 0.10 21.60 1.25 0.10 22.40 1.25 0.10 23.20 1.25 0.10 24.00 1.25 0.10 24.80 1.25 0.10 25.60 1.25 0.10 26.40 1.25 0.10 27.20 1.25 0.10 28.00 1.25 0.10 28.80 1.25 0.10 29.60 1.25 0.10 30.40 1.25 0.10 31.20 1.25 0.10 32.00 1.25 0.10 32.80 1.25 0.10 33.60 1.25 0.10 34.40 1.25 0.10 35.20 1.25 0.10 36.00 1.25 0.10 36.80 1.25 0.10 37.60 1.25 0.10 38.40 1.25 0.10 39.20 1.25 0.10 40.00 1.25 0.10 Runoff (cfs) 0.00 0.00 0.05 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Time Precip. Excess (hours) (inches)

00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Time Precip. Excess (hours) (inches) (inches) 40.80 1.25 0.10 41.60 1.25 0.10 42.40 1.25 0.10 43.20 1.25 0.10 44.00 1.25 0.10 44.80 1.25 0.10 45.60 1.25 0.10 46.40 1.25 0.10 47.20 1.25 0.10 48.00 1.25 0.10 48.80 1.25 0.10 49.60 1.25 0.10 50.40 1.25 0.10 51.20 1.25 0.10 52.00 1.25 0.10 52.80 1.25 0.10 53.60 1.25 0.10 54.40 1.25 0.10 55.20 1.25 0.10 56.00 1.25 0.10 56.80 1.25 0.10 57.60 1.25 0.10 58.40 1.25 0.10 59.20 1.25 0.10 60.00 1.25 0.10 60.80 1.25 0.10 61.60 1.25 0.10 62.40 1.25 0.10 63.20 1.25 0.10 64.00 1.25 0.10 64.80 1.25 0.10 65.60 1.25 0.10 66.40 1.25 0.10 67.20 1.25 0.10 68.00 1.25 0.10 68.80 1.25 0.10 69.60 1.25 0.10 70.40 1.25 0.10 71.20 1.25 0.10 72.00 1.25 0.10 72.80 1.25 0.10 73.60 1.25 0.10 74.40 1.25 0.10 75.20 1.25 0.10 76.00 1.25 0.10 76.80 1.25 0.10 77.60 1.25 0.10 78.40 1.25 0.10 79.20 1.25 0.10 80.00 1.25 0.10 Runoff (cfs) 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Printed 10/25/2024 Page 358

POA-2 NJ DEP 2-hr WQ Rainfall=1.25" 2024-05-12 HydroCad - Proposed POA 2B-1 Prepared by Anderson Consulting Services HydroCAD® 10.20-5c s/n 06666 © 2023 HydroCAD Software Solutions LLC Printed 10/25/2024 Page 359 Summary for Subcatchment 51S: Basin 10 - Imp Runoff = 3.08 cfs @ 1.15 hrs, Volume= Routed to Pond 41P : Basin 10 4,579 cf, Depth= 1.03" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-80.00 hrs, dt= 0.04 hrs NJ DEP 2-hr WQ Rainfall=1.25" Area (sf) 15,878 37,236 53,114 53,114 CN 98 98 98 Description Paved parking, HSG C Roofs, HSG C Weighted Average 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 9.0 59 0.0200 0.11 Sheet Flow, Sheet Flow (A-B) Grass: Dense n= 0.240 P2= 3.47" Using McCuen-Spiess flow length 1.0 210 0.0480 3.53 Shallow Concentrated Flow, SCF (B-C) Unpaved Kv= 16.1 fps 0.7 110 2.50 Direct Entry, Pipe Flow (C-D) 10.7 379 Total Sheet Flow (A-B) SCF (B-C) Subcatchment 51S: 10 - Imp PipeBasin Flow (C-D)

POA-2 NJ DEP 2-hr WQ Rainfall=1.25" 2024-05-12 HydroCad - Proposed POA 2B-1 Prepared by Anderson Consulting Services HydroCAD® 10.20-5c s/n 06666 © 2023 HydroCAD Software Solutions LLC Printed 10/25/2024 Page 360 Subcatchment 51S: Basin 10 - Imp Hydrograph Runoff 3.08 cfs Flow (cfs) 3 2 1 NJ DEP 2-hr WQ Rainfall=1.25" Runoff Area=53,114 sf Runoff Volume=4,579 cf Runoff Depth=1.03" Flow Length=379' Tc=10.7 min CN=98 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 74 76 78 80 Time (hours)

POA-2 NJ DEP 2-hr WQ Rainfall=1.25" 2024-05-12 HydroCad - Proposed POA 2B-1 Prepared by Anderson Consulting Services HydroCAD® 10.20-5c s/n 06666 © 2023 HydroCAD Software Solutions LLC Hydrograph for Subcatchment 51S: Basin 10 - Imp Time Precip. Excess (hours) (inches) (inches) 0.00 0.00 0.00 0.80 0.23 0.09 1.60 1.18 0.97 2.40 1.25 1.03 3.20 1.25 1.03 4.00 1.25 1.03 4.80 1.25 1.03 5.60 1.25 1.03 6.40 1.25 1.03 7.20 1.25 1.03 8.00 1.25 1.03 8.80 1.25 1.03 9.60 1.25 1.03 10.40 1.25 1.03 11.20 1.25 1.03 12.00 1.25 1.03 12.80 1.25 1.03 13.60 1.25 1.03 14.40 1.25 1.03 15.20 1.25 1.03 16.00 1.25 1.03 16.80 1.25 1.03 17.60 1.25 1.03 18.40 1.25 1.03 19.20 1.25 1.03 20.00 1.25 1.03 20.80 1.25 1.03 21.60 1.25 1.03 22.40 1.25 1.03 23.20 1.25 1.03 24.00 1.25 1.03 24.80 1.25 1.03 25.60 1.25 1.03 26.40 1.25 1.03 27.20 1.25 1.03 28.00 1.25 1.03 28.80 1.25 1.03 29.60 1.25 1.03 30.40 1.25 1.03 31.20 1.25 1.03 32.00 1.25 1.03 32.80 1.25 1.03 33.60 1.25 1.03 34.40 1.25 1.03 35.20 1.25 1.03 36.00 1.25 1.03 36.80 1.25 1.03 37.60 1.25 1.03 38.40 1.25 1.03 39.20 1.25 1.03 40.00 1.25 1.03 Runoff (cfs) 0.00 0.29 0.48 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Time Precip. Excess (hours) (inches)

00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Time Precip. Excess (hours) (inches) (inches) 40.80 1.25 1.03 41.60 1.25 1.03 42.40 1.25 1.03 43.20 1.25 1.03 44.00 1.25 1.03 44.80 1.25 1.03 45.60 1.25 1.03 46.40 1.25 1.03 47.20 1.25 1.03 48.00 1.25 1.03 48.80 1.25 1.03 49.60 1.25 1.03 50.40 1.25 1.03 51.20 1.25 1.03 52.00 1.25 1.03 52.80 1.25 1.03 53.60 1.25 1.03 54.40 1.25 1.03 55.20 1.25 1.03 56.00 1.25 1.03 56.80 1.25 1.03 57.60 1.25 1.03 58.40 1.25 1.03 59.20 1.25 1.03 60.00 1.25 1.03 60.80 1.25 1.03 61.60 1.25 1.03 62.40 1.25 1.03 63.20 1.25 1.03 64.00 1.25 1.03 64.80 1.25 1.03 65.60 1.25 1.03 66.40 1.25 1.03 67.20 1.25 1.03 68.00 1.25 1.03 68.80 1.25 1.03 69.60 1.25 1.03 70.40 1.25 1.03 71.20 1.25 1.03 72.00 1.25 1.03 72.80 1.25 1.03 73.60 1.25 1.03 74.40 1.25 1.03 75.20 1.25 1.03 76.00 1.25 1.03 76.80 1.25 1.03 77.60 1.25 1.03 78.40 1.25 1.03 79.20 1.25 1.03 80.00 1.25 1.03 Runoff (cfs) 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Printed 10/25/2024 Page 361