V3 RESUBMISSION Stormwater Management Report Rev 2 Dated November 3 2022

0.0 2.5 5.0 7.5 10.0 12.5 15.0 17.5 20.0 22.5 25.0 Time (hrs) Custom Design Storm -- S:\Petry Engineering Cad Projects\2019\19 0265 Daughters of Israel - West Orange\Civil\Cur

30 Hydrograph Report Hydraflow Hydrographs Extension for Autodesk® Civil 3D® by Autodesk, Inc. v2023 Wednesday, 11 / 2 / 2022 Hyd. No. 16 To Basin #1 Hydrograph type = Combine Peak discharge = 6.280 cfs Storm frequency = 2 yrs Time to peak = 12.10 hrs Time interval = 3 min Hyd. volume = 28,410 cuft Inflow hyds. = 3, 4 Contrib. drain. area = 0.240 ac To Basin #1 Q (cfs) Q (cfs) Hyd. No. 16 -- 2 Year 7.00 7.00 6.00 6.00 5.00 5.00 4.00 4.00 3.00 3.00 2.00 2.00 1.00 1.00 0.00 0.00 0 3 6 9 12 15 18 21 24 27 Time (hrs) Hyd No. 16 Hyd No. 3 Hyd No. 4

31 Hydrograph Report Hydraflow Hydrographs Extension for Autodesk® Civil 3D® by Autodesk, Inc. v2023 Wednesday, 11 / 2 / 2022 Hyd. No. 17 Basin #1 Hydrograph type = Reservoir Peak discharge = 1.473 cfs Storm frequency = 2 yrs Time to peak = 12.75 hrs Time interval = 3 min Hyd. volume = 28,403 cuft Inflow hyd. No. = 16 - To Basin #1 Max. Elevation = 419.06 ft Reservoir name = Basin #1 Max. Storage = 10,296 cuft Storage Indication method used. Basin #1 Q (cfs) Q (cfs) Hyd. No. 17 -- 2 Year 7.00 7.00 6.00 6.00 5.00 5.00 4.00 4.00 3.00 3.00 2.00 2.00 1.00 1.00 0.00 0.00 0 3 6 9 12 15 18 21 24 27 30 33

0.00 0 3 6 9 12 15 18 21 24 27 30 33 Time (hrs) Hyd No. 17 Hyd No. 16 Total storage used = 10,296 cuft

32 Pond Report Hydraflow Hydrographs Extension for Autodesk® Civil 3D® by Autodesk, Inc. v2023 Wednesday, 11 / 2 / 2022 Pond No. 1 - Basin #1 Pond Data Contours -User-defined contour areas. Average end area method used for volume calculation. Begining Elevation = 415.00 ft Stage / Storage Table Stage (ft) Elevation (ft) Contour area (sqft) Incr. Storage (cuft) Total storage (cuft) 0.00 415.00 1,040 0 0 1.00 416.00 1,900 1,470 1,470 2.00 417.00 2,550 2,225 3,695 3.00 418.00 3,170 2,860 6,555 4.00 419.00 3,800 3,485 10,040 5.00 420.00 4,800 4,300 14,340 Culvert / Orifice Structures Weir Structures [A] [B] [C] [PrfRsr] [A] [B] [C] [D] Rise (in) = 3.00 0.00 0.00 0.00 Crest Len (ft) = 16.00 0.00 0.00 0.00 Span (in) = 3.00 0.00 0.00 0.00 Crest El. (ft) = 419.00 0.00 0.00 0.00 No. Barrels = 1 0 0 0 Weir Coeff. = 3.33 3.33 3.33 3.33 Invert El. (ft) = 415.00 0.00 0.00 0.00 Weir Type = Rect --- --- --- Length (ft) = 0.00 0.00 0.00 0.00

0.00 Weir Type = Rect --- --- --- Length (ft) = 0.00 0.00 0.00 0.00 Multi-Stage = No No No No Slope (%) = 0.00 0.00 0.00 n/a N-Value = .013 .013 .013 n/a Orifice Coeff. = 0.60 0.60 0.60 0.60 Exfil.(in/hr) = 0.000 (by Contour) Multi-Stage = n/a No No No TW Elev. (ft) = 0.00 Note: Culvert/Orifice outflows are analyzed under inlet (ic) and outlet (oc) control. Weir risers checked for orifice conditions (ic) and submergence (s). Stage / Storage / Discharge Table Stage Storage Elevation Clv A Clv B Clv C PrfRsr Wr A Wr B Wr C Wr D Exfil User Total ft cuft ft cfs cfs cfs cfs cfs cfs cfs cfs cfs cfs cfs 0.00 0 415.00 0.00 --- --- --- 0.00 --- --- --- --- --- 0.000 1.00 1,470 416.00 0.22 ic --- --- --- 0.00 --- --- --- --- --- 0.221 2.00 3,695 417.00 0.32 ic --- --- --- 0.00 --- --- --- --- --- 0.324 3.00 6,555 418.00 0.40 ic --- --- --- 0.00 --- --- --- --- --- 0.401 4.00 10,040 419.00 0.47 ic --- --- --- 0.00 --- --- --- --- --- 0.465 5.00 14,340 420.00 0.52 ic --- --- ---

0.00 --- --- --- --- --- 0.465 5.00 14,340 420.00 0.52 ic --- --- --- 53.28 --- --- --- --- --- 53.80

33 Hydrograph Report Hydraflow Hydrographs Extension for Autodesk® Civil 3D® by Autodesk, Inc. v2023 Wednesday, 11 / 2 / 2022 Hyd. No. 18 Combined - SS Southern Driveway Hydrograph type = Combine Peak discharge = 7.343 cfs Storm frequency = 2 yrs Time to peak = 12.10 hrs Time interval = 3 min Hyd. volume = 57,703 cuft Inflow hyds. = 8, 17 Contrib. drain. area = 0.000 ac Combined - SS Southern Driveway Q (cfs) Q (cfs) Hyd. No. 18 -- 2 Year 8.00 8.00 6.00 6.00 4.00 4.00 2.00 2.00 0.00 0.00 0 3 6 9 12 15 18 21 24 27 30 Time (hrs) Hyd No. 18 Hyd No. 8 Hyd No. 17

34 Hydrograph Report Hydraflow Hydrographs Extension for Autodesk® Civil 3D® by Autodesk, Inc. v2023 Wednesday, 11 / 2 / 2022 Hyd. No. 19 Total Offsite Hydrograph type = Combine Peak discharge = 20.08 cfs Storm frequency = 2 yrs Time to peak = 12.05 hrs Time interval = 3 min Hyd. volume = 109,031 cuft Inflow hyds. = 5, 11, 14, 15, 18 Contrib. drain. area = 4.030 ac Total Offsite Q (cfs) Q (cfs) Hyd. No. 19 -- 2 Year 21.00 21.00 18.00 18.00 15.00 15.00 12.00 12.00 9.00 9.00 6.00 6.00 3.00 3.00 0.00 0.00 0 3 6 9 12 15 18 21 24 27 30 Time (hrs) Hyd No. 19

27 30 Time (hrs) Hyd No. 19 Hyd No. 5 Hyd No. 11 Hyd No. 14 Hyd No. 15 Hyd No. 18