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 30S: Basin 8 - Perv Time Precip. Excess (hours) (inches) (inches) 0.00 0.00 0.00 0.80 0.23 0.00 1.60 1.18 0.10 2.40 1.25 0.12 3.20 1.25 0.12 4.00 1.25 0.12 4.80 1.25 0.12 5.60 1.25 0.12 6.40 1.25 0.12 7.20 1.25 0.12 8.00 1.25 0.12 8.80 1.25 0.12 9.60 1.25 0.12 10.40 1.25 0.12 11.20 1.25 0.12 12.00 1.25 0.12 12.80 1.25 0.12 13.60 1.25 0.12 14.40 1.25 0.12 15.20 1.25 0.12 16.00 1.25 0.12 16.80 1.25 0.12 17.60 1.25 0.12 18.40 1.25 0.12 19.20 1.25 0.12 20.00 1.25 0.12 20.80 1.25 0.12 21.60 1.25 0.12 22.40 1.25 0.12 23.20 1.25 0.12 24.00 1.25 0.12 24.80 1.25 0.12 25.60 1.25 0.12 26.40 1.25 0.12 27.20 1.25 0.12 28.00 1.25 0.12 28.80 1.25 0.12 29.60 1.25 0.12 30.40 1.25 0.12 31.20 1.25 0.12 32.00 1.25 0.12 32.80 1.25 0.12 33.60 1.25 0.12 34.40 1.25 0.12 35.20 1.25 0.12 36.00 1.25 0.12 36.80 1.25 0.12 37.60 1.25 0.12 38.40 1.25 0.12 39.20 1.25 0.12 40.00 1.25 0.12 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 0.12 41.60 1.25 0.12 42.40 1.25 0.12 43.20 1.25 0.12 44.00 1.25 0.12 44.80 1.25 0.12 45.60 1.25 0.12 46.40 1.25 0.12 47.20 1.25 0.12 48.00 1.25 0.12 48.80 1.25 0.12 49.60 1.25 0.12 50.40 1.25 0.12 51.20 1.25 0.12 52.00 1.25 0.12 52.80 1.25 0.12 53.60 1.25 0.12 54.40 1.25 0.12 55.20 1.25 0.12 56.00 1.25 0.12 56.80 1.25 0.12 57.60 1.25 0.12 58.40 1.25 0.12 59.20 1.25 0.12 60.00 1.25 0.12 60.80 1.25 0.12 61.60 1.25 0.12 62.40 1.25 0.12 63.20 1.25 0.12 64.00 1.25 0.12 64.80 1.25 0.12 65.60 1.25 0.12 66.40 1.25 0.12 67.20 1.25 0.12 68.00 1.25 0.12 68.80 1.25 0.12 69.60 1.25 0.12 70.40 1.25 0.12 71.20 1.25 0.12 72.00 1.25 0.12 72.80 1.25 0.12 73.60 1.25 0.12 74.40 1.25 0.12 75.20 1.25 0.12 76.00 1.25 0.12 76.80 1.25 0.12 77.60 1.25 0.12 78.40 1.25 0.12 79.20 1.25 0.12 80.00 1.25 0.12 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 340

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 341 Summary for Subcatchment 31S: Basin 7 - Imp Runoff = 2.53 cfs @ 1.17 hrs, Volume= Routed to Pond 49P : Basin 7 3,947 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) 6,730 39,048 45,778 45,778 CN 98 98 98 Description other impervious vehicle pavement surface Weighted Average 100.00% Impervious 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 1.1 272 0.0600 3.94 Shallow Concentrated Flow, SCF (B-C) Unpaved Kv= 16.1 fps 0.1 40 0.0670 5.25 Shallow Concentrated Flow, SCF (C-D) Paved Kv= 20.3 fps 2.4 365 2.50 Direct Entry, Pipe Flow 12.5 760 Total Sheet Flow (A-B) SCF (B-C) SCF (C-D) Subcatchment 31S: Basin 7 - Imp Pipe Flow

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 342 Subcatchment 31S: Basin 7 - Imp Hydrograph Runoff 2.53 cfs Flow (cfs) 2 1 NJ DEP 2-hr WQ Rainfall=1.25" Runoff Area=45,778 sf Runoff Volume=3,947 cf Runoff Depth=1.03" Flow Length=760' Tc=12.5 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 31S: Basin 7 - 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 0.23 0.45 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 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 343

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 344 Summary for Subcatchment 32S: Basin 7 - Perv Runoff = 0.29 cfs @ 1.27 hrs, Volume= Routed to Pond 49P : Basin 7 572 cf, Depth= 0.12" 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) 25,517 33,161 58,678 58,678 CN 80 74 77 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 1.1 272 0.0600 3.94 Shallow Concentrated Flow, SCF (B-C) Unpaved Kv= 16.1 fps 0.1 40 0.0670 5.25 Shallow Concentrated Flow, SCF (C-D) Paved Kv= 20.3 fps 2.4 365 2.50 Direct Entry, Pipe Flow 12.5 760 Total Sheet Flow (A-B) SCF (B-C) SCF (C-D) Subcatchment 32S: Basin 7 - Perv Pipe Flow

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 345 Subcatchment 32S: Basin 7 - Perv Hydrograph Runoff 0.32 0.3 0.28 0.26 0.24 0.22 Flow (cfs) 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.29 cfs NJ DEP 2-hr WQ Rainfall=1.25" Runoff Area=58,678 sf Runoff Volume=572 cf Runoff Depth=0.12" Flow Length=760' Tc=12.5 min CN=77 0.04 0.02 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 32S: Basin 7 - Perv Time Precip. Excess (hours) (inches) (inches) 0.00 0.00 0.00 0.80 0.23 0.00 1.60 1.18 0.10 2.40 1.25 0.12 3.20 1.25 0.12 4.00 1.25 0.12 4.80 1.25 0.12 5.60 1.25 0.12 6.40 1.25 0.12 7.20 1.25 0.12 8.00 1.25 0.12 8.80 1.25 0.12 9.60 1.25 0.12 10.40 1.25 0.12 11.20 1.25 0.12 12.00 1.25 0.12 12.80 1.25 0.12 13.60 1.25 0.12 14.40 1.25 0.12 15.20 1.25 0.12 16.00 1.25 0.12 16.80 1.25 0.12 17.60 1.25 0.12 18.40 1.25 0.12 19.20 1.25 0.12 20.00 1.25 0.12 20.80 1.25 0.12 21.60 1.25 0.12 22.40 1.25 0.12 23.20 1.25 0.12 24.00 1.25 0.12 24.80 1.25 0.12 25.60 1.25 0.12 26.40 1.25 0.12 27.20 1.25 0.12 28.00 1.25 0.12 28.80 1.25 0.12 29.60 1.25 0.12 30.40 1.25 0.12 31.20 1.25 0.12 32.00 1.25 0.12 32.80 1.25 0.12 33.60 1.25 0.12 34.40 1.25 0.12 35.20 1.25 0.12 36.00 1.25 0.12 36.80 1.25 0.12 37.60 1.25 0.12 38.40 1.25 0.12 39.20 1.25 0.12 40.00 1.25 0.12 Runoff (cfs) 0.00 0.00 0.15 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 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 0.12 41.60 1.25 0.12 42.40 1.25 0.12 43.20 1.25 0.12 44.00 1.25 0.12 44.80 1.25 0.12 45.60 1.25 0.12 46.40 1.25 0.12 47.20 1.25 0.12 48.00 1.25 0.12 48.80 1.25 0.12 49.60 1.25 0.12 50.40 1.25 0.12 51.20 1.25 0.12 52.00 1.25 0.12 52.80 1.25 0.12 53.60 1.25 0.12 54.40 1.25 0.12 55.20 1.25 0.12 56.00 1.25 0.12 56.80 1.25 0.12 57.60 1.25 0.12 58.40 1.25 0.12 59.20 1.25 0.12 60.00 1.25 0.12 60.80 1.25 0.12 61.60 1.25 0.12 62.40 1.25 0.12 63.20 1.25 0.12 64.00 1.25 0.12 64.80 1.25 0.12 65.60 1.25 0.12 66.40 1.25 0.12 67.20 1.25 0.12 68.00 1.25 0.12 68.80 1.25 0.12 69.60 1.25 0.12 70.40 1.25 0.12 71.20 1.25 0.12 72.00 1.25 0.12 72.80 1.25 0.12 73.60 1.25 0.12 74.40 1.25 0.12 75.20 1.25 0.12 76.00 1.25 0.12 76.80 1.25 0.12 77.60 1.25 0.12 78.40 1.25 0.12 79.20 1.25 0.12 80.00 1.25 0.12 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 346