V4 11 Stormwater Report Rev 3 1 26 2023

0.04 0.03 0.03 0.02 0.02 0.01 0.01 0.00 0.00 0 3 6 9 12 15 18 21 24 27 Time (hrs) Hyd No. 15

30 Precipitation Report Hydraflow Hydrographs Extension for Autodesk® Civil 3D® by Autodesk, Inc. v2023 Friday, 01 / 27 / 2023 Hyd. No. 15 DA-1A (Courtyard Pervious) 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. 15 : DA-1A (Courtyard Pervious) - 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

0.00 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

31 Hydrograph Report Hydraflow Hydrographs Extension for Autodesk® Civil 3D® by Autodesk, Inc. v2023 Friday, 01 / 27 / 2023 Hyd. No. 16 DA-1A (Courtyard Impervious) Hydrograph type = SCS Runoff Peak discharge = 0.085 cfs Storm frequency = 2 yrs Time to peak = 12.05 hrs Time interval = 3 min Hyd. volume = 327 cuft Drainage area = 0.030 ac Curve number = 98 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 Impervious) Q (cfs) Q (cfs) Hyd. No. 16 -- 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

0.04 0.03 0.03 0.02 0.02 0.01 0.01 0.00 0.00 0 3 6 9 12 15 18 21 24 27 Time (hrs) Hyd No. 16

32 Precipitation Report Hydraflow Hydrographs Extension for Autodesk® Civil 3D® by Autodesk, Inc. v2023 Friday, 01 / 27 / 2023 Hyd. No. 16 DA-1A (Courtyard Impervious) 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. 16 : DA-1A (Courtyard Impervious) - 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

0.00 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

33 Hydrograph Report Hydraflow Hydrographs Extension for Autodesk® Civil 3D® by Autodesk, Inc. v2023 Friday, 01 / 27 / 2023 Hyd. No. 17 <no description> Hydrograph type = Combine Peak discharge = 0.131 cfs Storm frequency = 2 yrs Time to peak = 12.05 hrs Time interval = 3 min Hyd. volume = 490 cuft Inflow hyds. = 15, 16 Contrib. drain. area = 0.060 ac <no description> Q (cfs) Q (cfs) Hyd. No. 17 -- 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

0.05 0.00 0.00 0 3 6 9 12 15 18 21 24 27 Time (hrs) Hyd No. 17 Hyd No. 15 Hyd No. 16

34 Hydrograph Report Hydraflow Hydrographs Extension for Autodesk® Civil 3D® by Autodesk, Inc. v2023 Friday, 01 / 27 / 2023 Hyd. No. 18 <no description> Hydrograph type = Combine Peak discharge = 2.890 cfs Storm frequency = 2 yrs Time to peak = 12.05 hrs Time interval = 3 min Hyd. volume = 10,585 cuft Inflow hyds. = 1, 17 Contrib. drain. area = 1.030 ac <no description> Q (cfs) Q (cfs) Hyd. No. 18 -- 2 Year 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. 18 Hyd No. 1 Hyd No. 17