Stormwater Management Report 03302026

24-223 DRAINAGE DESIGN-PROPOSED-2026-03-30 NOAA 24-hr D 100-Year-2050 Rainfall=11.52", P2=4.09" Prepared by Jarmel Kizel Architects & Engnrs Printed 3/30/2026 HydroCAD® 10.20-6a s/n 12607 © 2024 HydroCAD Software Solutions LLC Page 133 Summary for Link P-DP 1: PROP DP 1 Inflow Area = 115,774 sf, 57.23% Impervious, Inflow Depth = 9.78" for 100-Year-2050 event Inflow = 13.63 cfs @ 12.04 hrs, Volume= 94,401 cf Primary = 13.63 cfs @ 12.04 hrs, Volume= 94,401 cf, Atten= 0%, Lag= 0.0 min Routed to Link 15L : TOTAL PROPOSED Primary outflow = Inflow, Time Span= 0.00-30.00 hrs, dt= 0.50 hrs Link P-DP 1: PROP DP 1 Hydrograph Inflow 15 13.63 cfs Primary 14 13.63 cfs Inflow Area=115,774 sf 13 12 11 10 9 Flow (cfs) 8 7 6 5 4 3 2 1 0 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Time (hours)

24-223 DRAINAGE DESIGN-PROPOSED-2026-03-30 NOAA 24-hr D 100-Year-2050 Rainfall=11.52", P2=4.09" Prepared by Jarmel Kizel Architects & Engnrs Printed 3/30/2026 HydroCAD® 10.20-6a s/n 12607 © 2024 HydroCAD Software Solutions LLC Page 134 Summary for Link P-DP 2: PROP DP 2 Inflow Area = 17,329 sf, 54.94% Impervious, Inflow Depth = 9.88" for 100-Year-2050 event Inflow = 2.22 cfs @ 12.02 hrs, Volume= 14,261 cf Primary = 2.22 cfs @ 12.02 hrs, Volume= 14,261 cf, Atten= 0%, Lag= 0.0 min Routed to Link 15L : TOTAL PROPOSED Primary outflow = Inflow, Time Span= 0.00-30.00 hrs, dt= 0.50 hrs Link P-DP 2: PROP DP 2 Hydrograph Inflow 2.22 cfs Primary 2.22 cfs Inflow Area=17,329 sf 2 Flow (cfs) 1 0 0 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 Time (hours)

APPENDIX C STORM SEWER CAPACITY CALCULATIONS 11

Hydraflow Storm Sewers Extension for Autodesk® Civil 3D® Plan B1 Outfall Outfall C1 Outfall raf ROOF C6 ClO C3 HEADWALL Project File: INLET-NEW.stm Number of lines: 18 Date: 3/30/2026 Storm Sewers v2025,00

Storm Sewer Tabulation Page 1 Station Len = |Drng Area Rnoff | Area x C Te Rain |Total |Cap Wel Pipe Invert Elev HGL Elev |Grnd / Rim Elev Line ID coeff (I) flow full Line To Incr | Total Incr Total [Inlet |Syst Size |Slope |Dn Up. Dn Up. Dn Up pine (ft) (ac) (ac) |(C) (min) |(min) |(inthr) /(cfs) |(cfs) (fs) |(in) —[(%) (ft) (ft) (ft) (ft) (ft) (ft) 1 End | 207 |0.00 /0.93 | 0.99 |0.00 |0.49 | 6.0 |60.3 | 2.9 | 456.4 | 926.3] 16.71 | 72 | 4.78 | 370.30 | 380.20 | 375.85 | 385.75 | 382.22 | 391.30 |A2-A1 2 1 117 |0.00 |0.48 | 0.99 |0.00 |0.23 | 6.0 |60.2 | 2.9 | 455.7 | 901.5] 16.69} 72 | 4.53 | 380.20 | 385.50 | 385.75 | 391.05 | 391.30 |398.00 | A3-A2 3 2 159 /0.00 |0.00 | 0.00 |0.00 |0.00 | 60.0 |60.0 | 0.0 | 455.0 | 976.5] 16.67} 72 | 5.31 | 385.50 | 393.95 | 391.05 | 399.50 | 398.00 | 403.50 | HEADWALL-A3 4 2 36 (0.31 [0.31 | 047 |0.15 |0.15 | 60 |6.0 9.1 1.33 | 11.72) 4.81 15 | 2.81 |394.00 | 395.01 | 394.28 | 395.46 | 398.00 | 397.50 | F1-A3 5 1 22 |0.28 |0.45 | 0.65 /0.18 /0.26 | 60 /|85 8.2 |2.15 | 9.43 | 5.02 | 15 | 1.82 | 386.50 | 386.90 | 386.91 | 387.49 | 391.30 |391.50 |D1-A2 6 2 59 |0.00 |0.17 | 0.00 |0.00 |0.08 | 0.0 |7.1 8.7 |0.69 | 15.77) 4.59 | 15 | 5.08 | 394.00 | 397.00 | 394.18 | 397.33 | 398.00 | 401.00 |F2-A3 7 6 39 |0.17 |0.17 | 0.47 |0.08 |0.08 | 6.0 |6.0 9.1 |0.73 | 13.25) 2.81 15 | 3.59 | 397.00 | 398.40 | 397.33 | 398.73 | 401.00 | 402.50 | F3-F2 8 5 7 |0.00 |0.17 | 0.00 ]0.00 /0.08 |00 /|83 8.3 |0.66 | 19.25) 2.10) 15 | 7.57 | 387.00 | 387.53 | 387.49 | 387.85 | 391.50 | 392.57 |D2-D1 9 8 83 |0.17 |0.17 | 0.47 |0.08 |0.08 | 6.0 |6.0 9.1 |0.73 | 13.28) 4.28 | 15 | 3.60 | 389.00 | 391.99 | 389.20 | 392.32 | 392.57 | 395.80 |D3-D2 10 | End} 81 |0.00 |0.02 / 0.00 |0.00 /0.01 | 60 |125 | 7.2 |0.07 | 19.13] 0.77) 15 | 7.48 | 378.29 | 384.35 | 380.81 | 384.45 | 382.22 | 390.20 |MHB1-A1 11 10 27 |0.02 |0.02 | 0.47 |0.01 |0.01 6.0 |6.0 9.1 0.09 | 16.82 | 2.57 15 | 5.78 | 384.45 | 386.01 | 384.51 | 386.12 | 390.20 | 389.00 | B2-B1 12 | End| 18 |0.58 |1.42 | 0.99 |0.57 |140 | 20 |66 8.9 | 12.40 | 26.54] 7.02 | 18 | 5.44 | 378.50 | 379.48 | 395.19 | 395.40 | 382.22 | 383.73 |C1-A1 13 | 12 123 |0.00 |0.84 | 0.00 |0.00 |0.82 | 0.0 |63 9.0 |7.41 | 14.41) 6.04) 15 | 4.24 | 379.60 | 384.82 | 396.22 | 397.59 | 383.73 | 388.08 |C5-C1 14 | 13 75 |0.20 /0.64 | 0.95 |0.19 |0.63 | 6.0 |6.0 9.1 |569 | 14.45) 4.64 | 15 | 4.27 | 384.80 | 388.00 |

|7.41 | 14.41) 6.04) 15 | 4.24 | 379.60 | 384.82 | 396.22 | 397.59 | 383.73 | 388.08 |C5-C1 14 | 13 75 |0.20 /0.64 | 0.95 |0.19 |0.63 | 6.0 |6.0 9.1 |569 | 14.45) 4.64 | 15 | 4.27 | 384.80 | 388.00 | 398.16 | 398.66 | 388.08 | 400.04 |C2-C5 15 | 14 46 |0.00 |0.44 | 0.00 |0.00 |0.44 |00 |25 9.5 |414 | 6.94] 5.27) 12 | 3.24 | 394.50 | 395.99 | 398.95 | 399.48 | 400.04 | 400.29 | C3-C2 16 | 15 143 0.44 |0.44 | 0.99 |0.44 |0.44 | 2.0 |2.0 9.5 |414 | 6.03 | 5.27) 12 | 2.44 | 396.00 | 399.49 | 399.82 |401.47 | 400.29 | 402.49 |C4-C3 17 (| 13 68 0.20 |0.20 | 0.99 }0.20 |0.20 | 2.0 |2.0 9.5 |188 | 4.66 | 2.39) 12 | 1.46 | 385.00 | 385.99 | 398.16 | 398.32 | 388.08 | 388.50 | C6-C5 18 End 14 |0.10 |0.10 | 0.99 /0.10 |0.10 | 2.0 |2.0 9.5 0.94 1.92 | 3.66 8 2.14 | 378.00 | 378.30 | 378.46 | 378.76 | 379.77 | 382.00 | Build to inlet Project File: INLET-NEW.stm Number of lines: 18 Run Date: 3/30/2026 NOTES: Intensity = 150.20 / (Inlet time + 15.60) “ 0.91; Return period =Yrs. 100 ; c= cir e=ellip b = box Storm Sewers v2025,00

APPENDIX D NRCS SOIL MAPPING DATA

Soil Map—Essex County, New Jersey 74° 16' 40'' W 74° 16' 33'' W 560940 560950 560960 560970 560980 560990 561000 561010 561020 561030 561040 561050 561060 561070 561080 561090 561100 40° 46' 16'' N 40° 46' 16'' N 4513610 4513610 4513600 4513600 4513590 4513590 4513580 4513580 4513570 4513570 4513560

4513570 4513560 4513560 4513550 4513550 4513540 4513540 4513530 4513530 4513520 4513520 4513510 4513510 Soil Map may not be valid at this scale. 40° 46' 12'' N 40° 46' 12'' N 560940 560950 560960 560970 560980 560990 561000 561010 561020

40° 46' 12'' N 560940 560950 560960 560970 560980 560990 561000 561010 561020 561030 561040 561050 561060 561070 561080 561090 561100 74° 16' 40'' W 74° 16' 33'' W Map Scale: 1:804 if printed on A landscape (11" x 8.5") sheet. Meters N 0 10 20 40 60 Feet 0 35 70 140 210 Map projection: Web Mercator Corner coordinates: WGS84 Edge tics: UTM Zone 18N WGS84 Natural Resources Web Soil Survey 10/10/2025 Conservation Service National Cooperative Soil Survey Page 1 of 3