complete drainage report rev 9

POA-1 2024-05-12 HydroCad - Proposed POA 1B-1 NOAA 24-hr D 100-Year Rainfall=8.66" Printed 10/25/2024 Page 128 Prepared by Anderson Consulting Services HydroCAD® 10.20-5c s/n 06666 © 2023 HydroCAD Software Solutions LLC Hydrograph for Pond 24P: Basin 6 Time (hours) 0.00 2.00 4.00 6.00 8.00 10.00 12.00 14.00 16.00 18.00 20.00 22.00 24.00 26.00 28.00 30.00 32.00 34.00 36.00 38.00 40.00 42.00 44.00 46.00 48.00 50.00 52.00 54.00 56.00 58.00 60.00 62.00 64.00 66.00 68.00 70.00 72.00 Inflow (cfs) 0.00 0.10 0.15 0.19 0.35 0.71 11.42 0.98 0.55 0.37 0.32 0.27 0.23 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Storage (cubic-feet) 0 2 4 5 9 17 621 24 14 9 8 7 6 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Elevation (feet) 600.00 600.00 600.00 600.00 600.00 600.00 600.04 600.00 600.00 600.00 600.00 600.00 600.00 600.00 600.00 600.00 600.00 600.00 600.00 600.00 600.00 600.00 600.00 600.00 600.00 600.00 600.00 600.00 600.00 600.00 600.00 600.00 600.00 600.00 600.00 600.00 600.00 Outflow (cfs) 0.00 0.10 0.15 0.19 0.35 0.71 8.34 0.98 0.55 0.37 0.32 0.27 0.23 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Discarded (cfs) 0.00 0.10 0.15 0.19 0.35 0.71 8.27 0.98 0.55 0.37 0.32 0.27 0.23 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Primary (cfs) 0.00 0.00 0.00 0.00 0.00 0.00 0.07 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

POA-1 2024-05-12 HydroCad - Proposed POA 1B-1 NOAA 24-hr D 100-Year Rainfall=8.66" Printed 10/25/2024 Page 129 Prepared by Anderson Consulting Services HydroCAD® 10.20-5c s/n 06666 © 2023 HydroCAD Software Solutions LLC Stage-Discharge for Pond 24P: Basin 6 Elevation (feet) 600.00 600.02 600.04 600.06 600.08 600.10 600.12 600.14 600.16 600.18 600.20 600.22 600.24 600.26 600.28 600.30 600.32 600.34 600.36 600.38 600.40 600.42 600.44 600.46 600.48 600.50 600.52 600.54 600.56 600.58 600.60 600.62 600.64 600.66 600.68 600.70 600.72 600.74 600.76 600.78 600.80 600.82 600.84 600.86 600.88 600.90 600.92 600.94 600.96 600.98 601.00 Discharge (cfs) 0.00 8.27 8.32 8.43 8.56 8.71 8.89 9.08 9.29 9.52 9.76 10.01 10.28 10.56 10.85 11.15 11.46 11.78 12.11 12.46 12.81 13.17 13.53 13.91 14.30 14.69 15.09 15.50 15.91 16.34 16.77 17.20 17.65 18.10 18.56 19.02 19.49 19.97 20.45 20.94 21.43 21.93 22.44 22.95 23.47 23.99 24.52 25.05 25.59 26.13 26.68 Discarded (cfs) 0.00 8.27 8.27 8.27 8.27 8.27 8.27 8.27 8.27 8.27 8.27 8.27 8.27 8.27 8.27 8.27 8.27 8.27 8.27 8.27 8.27 8.27 8.27 8.27 8.27 8.27 8.27 8.27 8.27 8.27 8.27 8.27 8.27 8.27 8.27 8.27 8.27 8.27 8.27 8.27 8.27 8.27 8.27 8.27 8.27 8.27 8.27 8.27 8.27 8.27 8.27 Primary (cfs) 0.00 0.00 0.06 0.16 0.29 0.44 0.62 0.81 1.02 1.25 1.49 1.74 2.01 2.29 2.58 2.88 3.19 3.51 3.85 4.19 4.54 4.90 5.27 5.64 6.03 6.42 6.82 7.23 7.65 8.07 8.50 8.94 9.38 9.83 10.29 10.75 11.22 11.70 12.18 12.67 13.16 13.66 14.17 14.68 15.20 15.72 16.25 16.78 17.32 17.86 18.41 Elevation (feet) 601.02 601.04 601.06 601.08 601.10 601.12 601.14 601.16 601.18 601.20 601.22 601.24 601.26 601.28 601.30 601.32 601.34 601.36 601.38 601.40 601.42 Discharge (cfs) 27.23 27.79 28.36 28.92 29.50 30.07 30.66 31.24 31.83 32.43 33.03 33.63 34.24 34.85 35.47 36.09 36.71 37.34 37.98 38.61 39.25 Discarded (cfs) 8.27 8.27 8.27 8.27 8.27 8.27 8.27 8.27 8.27 8.27 8.27 8.27 8.27 8.27 8.27 8.27 8.27 8.27 8.27 8.27 8.27 Primary (cfs) 18.97 19.52 20.09 20.66 21.23 21.81 22.39 22.97 23.56 24.16 24.76 25.36 25.97 26.58 27.20 27.82 28.45 29.07 29.71 30.34 30.98

POA-1 2024-05-12 HydroCad - Proposed POA 1B-1 NOAA 24-hr D 100-Year Rainfall=8.66" Printed 10/25/2024 Page 130 Prepared by Anderson Consulting Services HydroCAD® 10.20-5c s/n 06666 © 2023 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 24P: Basin 6 Elevation (feet) 600.00 600.02 600.04 600.06 600.08 600.10 600.12 600.14 600.16 600.18 600.20 600.22 600.24 600.26 600.28 600.30 600.32 600.34 600.36 600.38 600.40 600.42 600.44 600.46 600.48 600.50 600.52 600.54 600.56 600.58 600.60 600.62 600.64 600.66 600.68 600.70 600.72 600.74 600.76 600.78 600.80 600.82 600.84 600.86 600.88 600.90 600.92 600.94 600.96 600.98 601.00 Surface (sq-ft) 35,719 35,719 35,719 35,719 35,719 35,719 35,719 35,719 35,719 35,719 35,719 35,719 35,719 35,719 35,719 35,719 35,719 35,719 35,719 35,719 35,719 35,719 35,719 35,719 35,719 35,719 35,719 35,719 35,719 35,719 35,719 35,719 35,719 35,719 35,719 35,719 35,719 35,719 35,719 35,719 35,719 35,719 35,719 35,719 35,719 35,719 35,719 35,719 35,719 35,719 35,719 Storage (cubic-feet) 0 286 572 857 1,143 1,429 1,715 2,000 2,286 2,572 2,858 3,143 3,429 3,715 4,001 4,286 4,572 4,858 5,144 5,429 5,715 6,001 6,287 6,572 6,858 7,144 7,430 7,715 8,001 8,287 8,573 8,858 9,144 9,430 9,716 10,001 10,287 10,573 10,859 11,144 11,430 11,716 12,002 12,287 12,573 12,859 13,145 13,430 13,716 14,002 14,288 Elevation (feet) 601.02 601.04 601.06 601.08 601.10 601.12 601.14 601.16 601.18 601.20 601.22 601.24 601.26 601.28 601.30 601.32 601.34 601.36 601.38 601.40 601.42 Surface (sq-ft) 35,719 35,719 35,719 35,719 35,719 35,719 35,719 35,719 35,719 35,719 35,719 35,719 35,719 35,719 35,719 35,719 35,719 35,719 35,719 35,719 35,719 Storage (cubic-feet) 14,573 14,859 15,145 15,431 15,716 16,002 16,288 16,574 16,859 17,145 17,431 17,717 18,002 18,288 18,574 18,860 19,145 19,431 19,717 20,003 20,288

POA-1 NOAA 24-hr D 100-Year Rainfall=8.66" 2024-05-12 HydroCad - Proposed POA 1B-1 Prepared by Anderson Consulting Services HydroCAD® 10.20-5c s/n 06666 © 2023 HydroCAD Software Solutions LLC Printed 10/25/2024 Page 131 Summary for Link 25L: POA 1 Inflow Area = Inflow = Primary = 481,833 sf, 51.45% Impervious, Inflow Depth > 4.55" for 100-Year event 14.86 cfs @ 12.16 hrs, Volume= 182,831 cf 14.86 cfs @ 12.16 hrs, Volume= 182,831 cf, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow, Time Span= 0.00-72.00 hrs, dt= 0.01 hrs Link 25L: POA 1 Hydrograph 16 14.86 cfs 15 Inflow Primary 14.86 cfs Inflow Area=481,833 sf 14 13 12 Flow (cfs) 11 10 9 8 7 6 5 4 3 2 1 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)

POA-1 2024-05-12 HydroCad - Proposed POA 1B-1 NOAA 24-hr D 100-Year Rainfall=8.66" Printed 10/25/2024 Page 132 Prepared by Anderson Consulting Services HydroCAD® 10.20-5c s/n 06666 © 2023 HydroCAD Software Solutions LLC Hydrograph for Link 25L: POA 1 Time (hours) 0.00 1.00 2.00 3.00 4.00 5.00 6.00 7.00 8.00 9.00 10.00 11.00 12.00 13.00 14.00 15.00 16.00 17.00 18.00 19.00 20.00 21.00 22.00 23.00 24.00 25.00 26.00 27.00 28.00 29.00 30.00 31.00 32.00 33.00 34.00 35.00 36.00 37.00 38.00 39.00 40.00 41.00 42.00 43.00 44.00 45.00 46.00 47.00 48.00 49.00 50.00 Inflow (cfs) 0.00 0.00 0.00 0.00 0.00 0.00 0.02 0.05 0.09 0.15 0.34 0.92 6.87 12.04 6.32 3.83 2.67 2.05 1.65 1.41 1.26 1.18 1.10 1.03 0.96 0.69 0.57 0.47 0.39 0.33 0.28 0.25 0.21 0.19 0.17 0.15 0.13 0.12 0.11 0.10 0.09 0.08 0.08 0.07 0.06 0.06 0.06 0.05 0.05 0.05 0.04 Elevation (feet) 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Primary (cfs) 0.00 0.00 0.00 0.00 0.00 0.00 0.02 0.05 0.09 0.15 0.34 0.92 6.87 12.04 6.32 3.83 2.67 2.05 1.65 1.41 1.26 1.18 1.10 1.03 0.96 0.69 0.57 0.47 0.39 0.33 0.28 0.25 0.21 0.19 0.17 0.15 0.13 0.12 0.11 0.10 0.09 0.08 0.08 0.07 0.06 0.06 0.06 0.05 0.05 0.05 0.04 Time (hours) 51.00 52.00 53.00 54.00 55.00 56.00 57.00 58.00 59.00 60.00 61.00 62.00 63.00 64.00 65.00 66.00 67.00 68.00 69.00 70.00 71.00 72.00 Inflow (cfs) 0.04 0.04 0.04 0.03 0.03 0.03 0.03 0.03 0.03 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.01 Elevation (feet) 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Primary (cfs) 0.04 0.04 0.04 0.03 0.03 0.03 0.03 0.03 0.03 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.02 0.01

POA-1 NJ DEP 2-hr WQ Rainfall=1.25" 2024-05-12 HydroCad - Proposed POA 1B-1 Prepared by Anderson Consulting Services HydroCAD® 10.20-5c s/n 06666 © 2023 HydroCAD Software Solutions LLC Printed 10/25/2024 Page 133 Time span=0.00-72.00 hrs, dt=0.01 hrs, 7201 points Runoff by SCS TR-20 method, UH=SCS, Weighted-CN Reach routing by Stor-Ind+Trans method - Pond routing by Stor-Ind method Subcatchment 14S: Basin 1 - Imp Runoff Area=147,571 sf 100.00% Impervious Runoff Depth=1.03" Flow Length=1,000' Tc=14.1 min CN=98 Runoff=7.73 cfs 12,723 cf Subcatchment 15S: Basin 1 - Perv Runoff Area=114,590 sf 0.00% Impervious Runoff Depth=0.12" Flow Length=1,000' Tc=14.1 min CN=77 Runoff=0.55 cfs 1,117 cf Runoff Area=43,168 sf 100.00% Impervious Runoff Depth=1.03" Flow Length=222' Slope=0.0200 '/' Tc=1.8 min CN=98 Runoff=3.05 cfs 3,722 cf Subcatchment 17S: Basin 5 - Imp Runoff Area=56,858 sf 100.00% Impervious Runoff Depth=1.03" Flow Length=490' Slope=0.0200 '/' Tc=3.6 min CN=98 Runoff=3.98 cfs 4,902 cf Subcatchment 22S: Basin 6 - Imp Runoff Area=51,219 sf 0.00% Impervious Runoff Depth=0.07" Flow Length=490' Slope=0.0200 '/' Tc=3.6 min CN=74 Runoff=0.20 cfs 315 cf Subcatchment 23S: Basin 6 - Perv Runoff Area=64,687 sf 0.00% Impervious Runoff Depth=0.12" Flow Length=150' Slope=0.1100 '/' Tc=7.1 min CN=77 Runoff=0.41 cfs 631 cf Subcatchment 26S: DA 1 Und - Perv Runoff Area=3,440 sf 0.00% Impervious Runoff Depth=0.07" Flow Length=222' Slope=0.0200 '/' Tc=1.8 min CN=74 Runoff=0.02 cfs 21 cf Subcatchment 27S: Basin 5 - Perv Subcatchment 28S: undetained impervious Runoff Area=300 sf 100.00% Impervious Runoff Depth=1.03" Tc=0.0 min CN=98 Runoff=0.02 cfs 26 cf Pond 16P: Basin 1 Peak Elev=543.82' Storage=13,840 cf Inflow=8.10 cfs 13,840 cf Outflow=0.00 cfs 0 cf Pond 18P: Basin 5 Peak Elev=579.19' Storage=1,135 cf Inflow=3.06 cfs 3,743 cf Discarded=1.37 cfs 3,743 cf Primary=0.00 cfs 0 cf Outflow=1.37 cfs 3,743 cf Pond 24P: Basin 6 Peak Elev=600.01' Storage=100 cf Inflow=4.11 cfs 5,217 cf Discarded=4.08 cfs 5,217 cf Primary=0.00 cfs 0 cf Outflow=4.08 cfs 5,217 cf Link 25L: POA 1 Inflow=0.41 cfs 657 cf Primary=0.41 cfs 657 cf Total Runoff Area = 481,833 sf Runoff Volume = 23,456 cf Average Runoff Depth = 0.58" 48.55% Pervious = 233,936 sf 51.45% Impervious = 247,897 sf

POA-1 NJ DEP 2-hr WQ Rainfall=1.25" 2024-05-12 HydroCad - Proposed POA 1B-1 Prepared by Anderson Consulting Services HydroCAD® 10.20-5c s/n 06666 © 2023 HydroCAD Software Solutions LLC Printed 10/25/2024 Page 134 Summary for Subcatchment 14S: Basin 1 - Imp Runoff = 7.73 cfs @ 1.19 hrs, Volume= Routed to Pond 16P : Basin 1 12,723 cf, Depth= 1.03" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-72.00 hrs, dt= 0.01 hrs NJ DEP 2-hr WQ Rainfall=1.25" * Area (sf) 9,022 28,163 110,386 147,571 147,571 CN 98 98 98 98 Description non parking impervious 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 1.7 425 0.0650 4.10 Shallow Concentrated Flow, SCF (B-C) Unpaved Kv= 16.1 fps 3.4 516 2.50 Direct Entry, Pipe Flow (C-D) 14.1 1,000 Total Sheet Flow (A-B) SCF (B-C) Subcatchment 14S: Basin 1 - Imp Pipe Flow (C-D)

POA-1 NJ DEP 2-hr WQ Rainfall=1.25" 2024-05-12 HydroCad - Proposed POA 1B-1 Prepared by Anderson Consulting Services HydroCAD® 10.20-5c s/n 06666 © 2023 HydroCAD Software Solutions LLC Printed 10/25/2024 Page 135 Subcatchment 14S: Basin 1 - Imp Hydrograph Runoff 8 7.73 cfs 7 Flow (cfs) 6 5 4 3 NJ DEP 2-hr WQ Rainfall=1.25" Runoff Area=147,571 sf Runoff Volume=12,723 cf Runoff Depth=1.03" Flow Length=1,000' Tc=14.1 min CN=98 2 1 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)

POA-1 NJ DEP 2-hr WQ Rainfall=1.25" 2024-05-12 HydroCad - Proposed POA 1B-1 Prepared by Anderson Consulting Services HydroCAD® 10.20-5c s/n 06666 © 2023 HydroCAD Software Solutions LLC Hydrograph for Subcatchment 14S: Basin 1 - Imp Time Precip. Excess (hours) (inches) (inches) 0.00 0.00 0.00 1.00 0.63 0.43 2.00 1.25 1.03 3.00 1.25 1.03 4.00 1.25 1.03 5.00 1.25 1.03 6.00 1.25 1.03 7.00 1.25 1.03 8.00 1.25 1.03 9.00 1.25 1.03 10.00 1.25 1.03 11.00 1.25 1.03 12.00 1.25 1.03 13.00 1.25 1.03 14.00 1.25 1.03 15.00 1.25 1.03 16.00 1.25 1.03 17.00 1.25 1.03 18.00 1.25 1.03 19.00 1.25 1.03 20.00 1.25 1.03 21.00 1.25 1.03 22.00 1.25 1.03 23.00 1.25 1.03 24.00 1.25 1.03 25.00 1.25 1.03 26.00 1.25 1.03 27.00 1.25 1.03 28.00 1.25 1.03 29.00 1.25 1.03 30.00 1.25 1.03 31.00 1.25 1.03 32.00 1.25 1.03 33.00 1.25 1.03 34.00 1.25 1.03 35.00 1.25 1.03 36.00 1.25 1.03 37.00 1.25 1.03 38.00 1.25 1.03 39.00 1.25 1.03 40.00 1.25 1.03 41.00 1.25 1.03 42.00 1.25 1.03 43.00 1.25 1.03 44.00 1.25 1.03 45.00 1.25 1.03 46.00 1.25 1.03 47.00 1.25 1.03 48.00 1.25 1.03 49.00 1.25 1.03 50.00 1.25 1.03 Runoff (cfs) 0.00 2.29 0.54 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 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) 51.00 1.25 1.03 52.00 1.25 1.03 53.00 1.25 1.03 54.00 1.25 1.03 55.00 1.25 1.03 56.00 1.25 1.03 57.00 1.25 1.03 58.00 1.25 1.03 59.00 1.25 1.03 60.00 1.25 1.03 61.00 1.25 1.03 62.00 1.25 1.03 63.00 1.25 1.03 64.00 1.25 1.03 65.00 1.25 1.03 66.00 1.25 1.03 67.00 1.25 1.03 68.00 1.25 1.03 69.00 1.25 1.03 70.00 1.25 1.03 71.00 1.25 1.03 72.00 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 Printed 10/25/2024 Page 136

POA-1 NJ DEP 2-hr WQ Rainfall=1.25" 2024-05-12 HydroCad - Proposed POA 1B-1 Prepared by Anderson Consulting Services HydroCAD® 10.20-5c s/n 06666 © 2023 HydroCAD Software Solutions LLC Printed 10/25/2024 Page 137 Summary for Subcatchment 15S: Basin 1 - Perv Runoff = 0.55 cfs @ 1.30 hrs, Volume= Routed to Pond 16P : Basin 1 1,117 cf, Depth= 0.12" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-72.00 hrs, dt= 0.01 hrs NJ DEP 2-hr WQ Rainfall=1.25" Area (sf) 64,900 49,690 114,590 114,590 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) 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 1.7 425 0.0650 4.10 Shallow Concentrated Flow, SCF (B-C) Unpaved Kv= 16.1 fps 3.4 516 2.50 Direct Entry, Pipe Flow (C-D) 14.1 1,000 Total Sheet Flow (A-B) SCF (B-C) Subcatchment 15S: Basin 1 - Perv Pipe Flow (C-D)