V4 11 Stormwater Report Rev 3 1 26 2023

= 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 0 414.00 0.00 0.00 --- --- 0.00 --- --- --- --- --- 0.000 5.00 16,898 419.00 8.67 ic 32.46 ic --- --- 13.32 --- --- --- --- --- 54.45

25 Hydrograph Report Hydraflow Hydrographs Extension for Autodesk® Civil 3D® by Autodesk, Inc. v2023 Friday, 01 / 27 / 2023 Hyd. No. 13 DA-1B (Roof) Hydrograph type = SCS Runoff Peak discharge = 4.580 cfs Storm frequency = 2 yrs Time to peak = 12.05 hrs Time interval = 3 min Hyd. volume = 16,539 cuft Drainage area = 1.750 ac Curve number = 94 Basin Slope = 0.0 % Hydraulic length = 0 ft Tc method = User Time of conc. (Tc) = 6.00 min Total precip. = 3.44 in Distribution = Custom Storm duration = S:\Petry Engineering Cad Projects\2019\19 Shape factor 0265 Daughters = 484 of Israel - West Oran DA-1B (Roof) Q (cfs) Q (cfs) Hyd. No. 13 -- 2 Year 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)

9 12 15 18 21 24 27 Time (hrs) Hyd No. 13

26 Precipitation Report Hydraflow Hydrographs Extension for Autodesk® Civil 3D® by Autodesk, Inc. v2023 Friday, 01 / 27 / 2023 Hyd. No. 13 DA-1B (Roof) Storm Frequency = 2 yrs Time interval = 3 min Total precip. = 3.4400 in Distribution = Custom Storm duration = S:\Petry Engineering Cad Projects\2019\19 0265 Daughters of Israel - West Ora Incremental Rainfall Precipitation Precip (in) Precip (in) Hyd. No. 13 : DA-1B (Roof) - 2 Year 0.50 0.50 0.45 0.45 0.40 0.40 0.35 0.35 0.30 0.30 0.25 0.25 0.20 0.20 0.15 0.15 0.10 0.10 0.05 0.05 0.00 0.00 0.0 2.5 5.0 7.5 10.0 12.5 15.0 17.5 20.0 22.5 25.0

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

27 Hydrograph Report Hydraflow Hydrographs Extension for Autodesk® Civil 3D® by Autodesk, Inc. v2023 Friday, 01 / 27 / 2023 Hyd. No. 14 Basin #1B Hydrograph type = Reservoir Peak discharge = 2.090 cfs Storm frequency = 2 yrs Time to peak = 12.20 hrs Time interval = 3 min Hyd. volume = 16,539 cuft Inflow hyd. No. = 13 - DA-1B (Roof) Max. Elevation = 407.13 ft Reservoir name = Basin #1B Max. Storage = 2,550 cuft Storage Indication method used. Basin #1B Q (cfs) Q (cfs) Hyd. No. 14 -- 2 Year 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. 14 Hyd No. 13 Total storage used = 2,550 cuft

28 Pond Report Hydraflow Hydrographs Extension for Autodesk® Civil 3D® by Autodesk, Inc. v2023 Friday, 01 / 27 / 2023 Pond No. 3 - Basin #1B Pond Data UG Chambers -Invert elev. = 404.00 ft, Rise x Span = 4.00 x 4.00 ft, Barrel Len = 70.00 ft, No. Barrels = 3, Slope = 0.00%, Headers = Yes Stage / Storage Table Stage (ft) Elevation (ft) Contour area (sqft) Incr. Storage (cuft) Total storage (cuft) 0.00 404.00 n/a 0 0 0.40 404.40 n/a 158 158 0.80 404.80 n/a 275 433 1.20 405.20 n/a 334 768 1.60 405.60 n/a 368 1,136 2.00 406.00 n/a 385 1,521 2.40 406.40 n/a 385 1,906 2.80 406.80 n/a 368 2,274 3.20 407.20 n/a 334 2,609 3.60 407.60 n/a 275 2,884 4.00 408.00 n/a 158 3,042 Culvert / Orifice Structures Weir Structures [A] [B] [C] [PrfRsr] [A] [B] [C] [D] Rise (in) = 3.00 0.00 0.00 0.00 Crest

[PrfRsr] [A] [B] [C] [D] Rise (in) = 3.00 0.00 0.00 0.00 Crest Len (ft) = 4.00 0.00 0.00 0.00 Span (in) = 6.00 0.00 0.00 0.00 Crest El. (ft) = 407.15 0.00 0.00 0.00 No. Barrels = 2 0 0 0 Weir Coeff. = 3.33 3.33 3.33 3.33 Invert El. (ft) = 404.00 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 Wet area) 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 0 404.00 0.00 --- --- --- 0.00 --- --- --- --- --- 0.000 0.40 158 404.40 0.63 ic --- --- --- 0.00 --- --- --- --- --- 0.631 0.80

158 404.40 0.63 ic --- --- --- 0.00 --- --- --- --- --- 0.631 0.80 433 404.80 0.99 ic --- --- --- 0.00 --- --- --- --- --- 0.989 1.20 768 405.20 1.25 ic --- --- --- 0.00 --- --- --- --- --- 1.248 1.60 1,136 405.60 1.46 ic --- --- --- 0.00 --- --- --- --- --- 1.462 2.00 1,521 406.00 1.65 ic --- --- --- 0.00 --- --- --- --- --- 1.648 2.40 1,906 406.40 1.82 ic --- --- --- 0.00 --- --- --- --- --- 1.816 2.80 2,274 406.80 1.97 ic --- --- --- 0.00 --- --- --- --- --- 1.969 3.20 2,609 407.20 2.11 ic --- --- --- 0.15 --- --- --- --- --- 2.260 3.60 2,884 407.60 2.24 ic --- --- --- 4.02 --- --- --- --- --- 6.265 4.00 3,042 408.00 2.37 ic --- --- --- 10.44 --- --- --- --- --- 12.81

29 Hydrograph Report Hydraflow Hydrographs Extension for Autodesk® Civil 3D® by Autodesk, Inc. v2023 Friday, 01 / 27 / 2023 Hyd. No. 15 DA-1A (Courtyard Pervious) Hydrograph type = SCS Runoff Peak discharge = 0.048 cfs Storm frequency = 2 yrs Time to peak = 12.10 hrs Time interval = 3 min Hyd. volume = 162 cuft Drainage area = 0.030 ac Curve number = 80 Basin Slope = 0.0 % Hydraulic length = 0 ft Tc method = User Time of conc. (Tc) = 7.50 min Total precip. = 3.44 in Distribution = Custom Storm duration = S:\Petry Engineering Cad Projects\2019\19 Shape factor 0265 Daughters = 484 of Israel - West Oran DA-1A (Courtyard Pervious) Q (cfs) Q (cfs) Hyd. No. 15 -- 2 Year 0.10 0.10 0.09 0.09 0.08 0.08 0.07 0.07 0.06 0.06 0.05 0.05 0.04 0.04 0.03