V4 11 Stormwater Report Rev 3 1 26 2023

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

59 Hydrograph Report Hydraflow Hydrographs Extension for Autodesk® Civil 3D® by Autodesk, Inc. v2023 Wednesday, 11 / 2 / 2022 Hyd. No. 14 DA-5 Hydrograph type = Combine Peak discharge = 2.844 cfs Storm frequency = 10 yrs Time to peak = 12.10 hrs Time interval = 3 min Hyd. volume = 14,954 cuft Inflow hyds. = 12, 13 Contrib. drain. area = 3.130 ac DA-5 Q (cfs) Q (cfs) Hyd. No. 14 -- 10 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. 14 Hyd No. 12 Hyd No. 13

60 Hydrograph Report Hydraflow Hydrographs Extension for Autodesk® Civil 3D® by Autodesk, Inc. v2023 Wednesday, 11 / 2 / 2022 Hyd. No. 15 DA-6 Hydrograph type = SCS Runoff Peak discharge = 14.76 cfs Storm frequency = 10 yrs Time to peak = 12.05 hrs Time interval = 3 min Hyd. volume = 58,163 cuft Drainage area = 3.430 ac Curve number = 98 Basin Slope = 0.0 % Hydraulic length = 0 ft Tc method = User Time of conc. (Tc) = 6.00 min Total precip. = 5.22 in Distribution = Custom Storm duration = S:\Petry Engineering Cad Projects\2019\19 Shape factor 0265 Daughters = 484 of Israel - West Oran DA-6 Q (cfs) Q (cfs) Hyd. No. 15 -- 10 Year 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 Time (hrs) Hyd No. 15

61 Precipitation Report Hydraflow Hydrographs Extension for Autodesk® Civil 3D® by Autodesk, Inc. v2023 Wednesday, 11 / 2 / 2022 Hyd. No. 15 DA-6 Storm Frequency = 10 yrs Time interval = 3 min Total precip. = 5.2200 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-6 - 10 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

62 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 = 14.25 cfs Storm frequency = 10 yrs Time to peak = 12.10 hrs Time interval = 3 min Hyd. volume = 59,979 cuft Inflow hyds. = 3, 4 Contrib. drain. area = 0.240 ac To Basin #1 Q (cfs) Q (cfs) Hyd. No. 16 -- 10 Year 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 Time (hrs) Hyd No. 16 Hyd No. 3 Hyd No. 4

63 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 = 14.01 cfs Storm frequency = 10 yrs Time to peak = 12.15 hrs Time interval = 3 min Hyd. volume = 59,972 cuft Inflow hyd. No. = 16 - To Basin #1 Max. Elevation = 419.40 ft Reservoir name = Basin #1 Max. Storage = 11,764 cuft Storage Indication method used. Basin #1 Q (cfs) Q (cfs) Hyd. No. 17 -- 10 Year 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 33 Time (hrs) Hyd No. 17 Hyd No. 16 Total storage used = 11,764 cuft

64 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 = 24.43 cfs Storm frequency = 10 yrs Time to peak = 12.15 hrs Time interval = 3 min Hyd. volume = 111,539 cuft Inflow hyds. = 8, 17 Contrib. drain. area = 0.000 ac Combined - SS Southern Driveway Q (cfs) Q (cfs) Hyd. No. 18 -- 10 Year 28.00 28.00 24.00 24.00 20.00 20.00 16.00 16.00 12.00 12.00 8.00 8.00 4.00 4.00 0.00 0.00 0 3 6 9 12 15 18 21 24 27 30 Time (hrs) Hyd No. 18 Hyd No. 8

Time (hrs) Hyd No. 18 Hyd No. 8 Hyd No. 17

65 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 = 45.76 cfs Storm frequency = 10 yrs Time to peak = 12.10 hrs Time interval = 3 min Hyd. volume = 199,793 cuft Inflow hyds. = 5, 11, 14, 15, 18 Contrib. drain. area = 4.030 ac Total Offsite Q (cfs) Q (cfs) Hyd. No. 19 -- 10 Year 50.00 50.00 40.00 40.00 30.00 30.00 20.00 20.00 10.00 10.00 0.00 0.00 0 3 6 9 12 15 18 21 24 27 Time (hrs) Hyd No. 19 Hyd No. 5 Hyd No. 11 Hyd No. 14 Hyd No. 15 Hyd No. 18