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 Printed 10/25/2024 Page 362 Summary for Subcatchment 52S: Basin 10 - Perv Runoff = 0.14 cfs @ 1.26 hrs, Volume= Routed to Pond 41P : Basin 10 270 cf, Depth= 0.09" 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) 7,626 29,609 37,235 37,235 CN 80 74 75 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) 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 52S: - Perv PipeBasin Flow 10 (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 363 Subcatchment 52S: Basin 10 - Perv Hydrograph 0.15 0.14 0.13 0.12 0.11 Flow (cfs) 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 Runoff 0.14 cfs NJ DEP 2-hr WQ Rainfall=1.25" Runoff Area=37,235 sf Runoff Volume=270 cf Runoff Depth=0.09" Flow Length=379' Tc=10.7 min CN=75 0.02 0.01 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 52S: Basin 10 - Perv Time Precip. Excess (hours) (inches) (inches) 0.00 0.00 0.00 0.80 0.23 0.00 1.60 1.18 0.07 2.40 1.25 0.09 3.20 1.25 0.09 4.00 1.25 0.09 4.80 1.25 0.09 5.60 1.25 0.09 6.40 1.25 0.09 7.20 1.25 0.09 8.00 1.25 0.09 8.80 1.25 0.09 9.60 1.25 0.09 10.40 1.25 0.09 11.20 1.25 0.09 12.00 1.25 0.09 12.80 1.25 0.09 13.60 1.25 0.09 14.40 1.25 0.09 15.20 1.25 0.09 16.00 1.25 0.09 16.80 1.25 0.09 17.60 1.25 0.09 18.40 1.25 0.09 19.20 1.25 0.09 20.00 1.25 0.09 20.80 1.25 0.09 21.60 1.25 0.09 22.40 1.25 0.09 23.20 1.25 0.09 24.00 1.25 0.09 24.80 1.25 0.09 25.60 1.25 0.09 26.40 1.25 0.09 27.20 1.25 0.09 28.00 1.25 0.09 28.80 1.25 0.09 29.60 1.25 0.09 30.40 1.25 0.09 31.20 1.25 0.09 32.00 1.25 0.09 32.80 1.25 0.09 33.60 1.25 0.09 34.40 1.25 0.09 35.20 1.25 0.09 36.00 1.25 0.09 36.80 1.25 0.09 37.60 1.25 0.09 38.40 1.25 0.09 39.20 1.25 0.09 40.00 1.25 0.09 Runoff (cfs) 0.00 0.00 0.08 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 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 0.09 41.60 1.25 0.09 42.40 1.25 0.09 43.20 1.25 0.09 44.00 1.25 0.09 44.80 1.25 0.09 45.60 1.25 0.09 46.40 1.25 0.09 47.20 1.25 0.09 48.00 1.25 0.09 48.80 1.25 0.09 49.60 1.25 0.09 50.40 1.25 0.09 51.20 1.25 0.09 52.00 1.25 0.09 52.80 1.25 0.09 53.60 1.25 0.09 54.40 1.25 0.09 55.20 1.25 0.09 56.00 1.25 0.09 56.80 1.25 0.09 57.60 1.25 0.09 58.40 1.25 0.09 59.20 1.25 0.09 60.00 1.25 0.09 60.80 1.25 0.09 61.60 1.25 0.09 62.40 1.25 0.09 63.20 1.25 0.09 64.00 1.25 0.09 64.80 1.25 0.09 65.60 1.25 0.09 66.40 1.25 0.09 67.20 1.25 0.09 68.00 1.25 0.09 68.80 1.25 0.09 69.60 1.25 0.09 70.40 1.25 0.09 71.20 1.25 0.09 72.00 1.25 0.09 72.80 1.25 0.09 73.60 1.25 0.09 74.40 1.25 0.09 75.20 1.25 0.09 76.00 1.25 0.09 76.80 1.25 0.09 77.60 1.25 0.09 78.40 1.25 0.09 79.20 1.25 0.09 80.00 1.25 0.09 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 364

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 365 Summary for Subcatchment 53S: Basin 9 - Imp Runoff = 1.12 cfs @ 1.11 hrs, Volume= Routed to Pond 42P : Basin 9 1,505 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) 13,382 2,932 1,147 17,461 17,461 CN 98 98 98 98 Description vehicle surface area other impervious roofs Weighted Average 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.2 100 0.1000 0.23 Sheet Flow, Sheet Flow (A-B) Grass: Dense n= 0.240 P2= 3.47" 0.2 40 0.0750 4.41 Shallow Concentrated Flow, SCF (B-C) Unpaved Kv= 16.1 fps 7.4 140 Total Sheet Flow (A-B) Subcatchment 53S: Basin 9 - Imp SCF (B-C)

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 366 Subcatchment 53S: Basin 9 - Imp Hydrograph Runoff 1.12 cfs Flow (cfs) 1 NJ DEP 2-hr WQ Rainfall=1.25" Runoff Area=17,461 sf Runoff Volume=1,505 cf Runoff Depth=1.03" Flow Length=140' Tc=7.4 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 53S: Basin 9 - 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 0.11 0.14 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 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 367

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 368 Summary for Subcatchment 54S: Basin 9 - Perv Runoff = 0.07 cfs @ 1.18 hrs, Volume= Routed to Pond 42P : Basin 9 100 cf, Depth= 0.13" 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) 2,537 6,379 8,916 8,916 CN 74 80 78 Description >75% Grass cover, Good, HSG C >75% Grass cover, Good, HSG D Weighted Average 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.2 100 0.1000 0.23 Sheet Flow, Sheet Flow (A-B) Grass: Dense n= 0.240 P2= 3.47" 0.2 40 0.0750 4.41 Shallow Concentrated Flow, SCF (B-C) Unpaved Kv= 16.1 fps 7.4 140 Total Sheet Flow (A-B) Subcatchment 54S: Basin 9 - Perv SCF (B-C)

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 369 Subcatchment 54S: Basin 9 - Perv Hydrograph Runoff 0.07 0.07 cfs 0.065 0.06 0.055 0.05 Flow (cfs) 0.045 0.04 0.035 0.03 0.025 0.02 0.015 NJ DEP 2-hr WQ Rainfall=1.25" Runoff Area=8,916 sf Runoff Volume=100 cf Runoff Depth=0.13" Flow Length=140' Tc=7.4 min CN=78 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)