Supporting Documentation · Jul 30, 2024
Revised Stormwater Management Report
69ec9df8b1f4567abd2a92749a074a179a57821dd07f0cd16dd61242156a3c29Indexed text
00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 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
POA 2 proposed 2024-05-12 HydroCad - Proposed POA 2 NJ DEP 2-hr WQ Rainfall=1.25" Prepared by Anderson Consulting Services Printed 6/29/2024 Page 257 HydroCAD® 10.20-5a s/n 06666 © 2023 HydroCAD Software Solutions LLC Summary for Subcatchment 31S: Basin 7 - Imp Runoff = 2.58 cfs @ 1.17 hrs, Volume= Routed to Pond 49P : Basin 7 4,036 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) 15,723 31,089 46,812 46,812 Tc (min) 8.9 Length (feet) 83 1.1 272 0.1 40 2.4 12.5 365 760 CN 98 98 98 Description Paved parking, HSG D Paved parking, HSG C Weighted Average 100.00% Impervious Area Slope Velocity Capacity Description (ft/ft) (ft/sec) (cfs) 0.0400 0.15 Sheet Flow, Sheet Flow (A-B) Grass: Dense n= 0.240 P2= 3.47" Using McCuen-Spiess flow length 0.0600 3.94 Shallow Concentrated Flow, SCF (B-C) Unpaved Kv= 16.1 fps 0.0670 5.25 Shallow Concentrated Flow, SCF (C-D) Paved Kv= 20.3 fps 2.50 Direct Entry, Pipe Flow Total Subcatchment 31S: Basin 7 - Imp Hydrograph Runoff 2.58 cfs Flow (cfs) 2 1 0 NJ DEP 2-hr WQ Rainfall=1.25" Runoff Area=46,812 sf Runoff Volume=4,036 cf Runoff Depth=1.03" Flow Length=760' Tc=12.5 min CN=98 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 proposed 2024-05-12 HydroCad - Proposed POA 2 NJ DEP 2-hr WQ Rainfall=1.25" Prepared by Anderson Consulting Services Printed 6/29/2024 Page 258 HydroCAD® 10.20-5a 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 0.46 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 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
POA 2 proposed 2024-05-12 HydroCad - Proposed POA 2 NJ DEP 2-hr WQ Rainfall=1.25" Prepared by Anderson Consulting Services Printed 6/29/2024 Page 259 HydroCAD® 10.20-5a s/n 06666 © 2023 HydroCAD Software Solutions LLC Summary for Subcatchment 32S: Basin 7 - Perv Runoff = 0.30 cfs @ 1.27 hrs, Volume= Routed to Pond 49P : Basin 7 586 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 34,560 60,077 60,077 Tc (min) 8.9 Length (feet) 83 1.1 272 0.1 40 2.4 12.5 365 760 CN 80 74 77 Description >75% Grass cover, Good, HSG D >75% Grass cover, Good, HSG C Weighted Average 100.00% Pervious Area Slope Velocity Capacity Description (ft/ft) (ft/sec) (cfs) 0.0400 0.15 Sheet Flow, Sheet Flow (A-B) Grass: Dense n= 0.240 P2= 3.47" Using McCuen-Spiess flow length 0.0600 3.94 Shallow Concentrated Flow, SCF (B-C) Unpaved Kv= 16.1 fps 0.0670 5.25 Shallow Concentrated Flow, SCF (C-D) Paved Kv= 20.3 fps 2.50 Direct Entry, Pipe Flow Total Subcatchment 32S: Basin 7 - Perv Hydrograph 0.32 0.30 cfs 0.3 0.28 0.26 0.24 Flow (cfs) 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 Runoff NJ DEP 2-hr WQ Rainfall=1.25" Runoff Area=60,077 sf Runoff Volume=586 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 proposed 2024-05-12 HydroCad - Proposed POA 2 NJ DEP 2-hr WQ Rainfall=1.25" Prepared by Anderson Consulting Services Printed 6/29/2024 Page 260 HydroCAD® 10.20-5a 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
POA 2 proposed 2024-05-12 HydroCad - Proposed POA 2 NJ DEP 2-hr WQ Rainfall=1.25" Prepared by Anderson Consulting Services Printed 6/29/2024 Page 261 HydroCAD® 10.20-5a s/n 06666 © 2023 HydroCAD Software Solutions LLC Summary for Subcatchment 35S: DA 2 Und - Imp Runoff = 3.19 cfs @ 1.13 hrs, Volume= Routed to Link 34L : DA 2 Undetained 4,527 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) 19,504 33,009 52,513 52,513 Tc (min) 8.8 Length (feet) 100 0.3 60 9.1 160 CN 98 98 98 Description Paved parking, HSG C Paved parking, HSG D Weighted Average 100.00% Impervious Area Slope Velocity Capacity Description (ft/ft) (ft/sec) (cfs) 0.0600 0.19 Sheet Flow, Sheet Flow (A-B) Grass: Dense n= 0.240 P2= 3.47" 0.0600 3.94 Shallow Concentrated Flow, SCF (B-C) Unpaved Kv= 16.1 fps Total Subcatchment 35S: DA 2 Und - Imp Hydrograph Runoff 3.19 cfs Flow (cfs) 3 2 1 0 NJ DEP 2-hr WQ Rainfall=1.25" Runoff Area=52,513 sf Runoff Volume=4,527 cf Runoff Depth=1.03" Flow Length=160' Slope=0.0600 '/' Tc=9.1 min CN=98 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 proposed 2024-05-12 HydroCad - Proposed POA 2 NJ DEP 2-hr WQ Rainfall=1.25" Prepared by Anderson Consulting Services Printed 6/29/2024 Page 262 HydroCAD® 10.20-5a s/n 06666 © 2023 HydroCAD Software Solutions LLC Hydrograph for Subcatchment 35S: DA 2 Und - 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 0.30 0.44 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 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
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