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

51 Hydrograph Report Hydraflow Hydrographs Extension for Autodesk® Civil 3D® by Autodesk, Inc. v2023 Friday, 01 / 27 / 2023 Hyd. No. 7 DA-4 (Impervious) Hydrograph type = SCS Runoff Peak discharge = 4.948 cfs Storm frequency = 10 yrs Time to peak = 12.05 hrs Time interval = 3 min Hyd. volume = 19,501 cuft Drainage area = 1.150 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-4 (Impervious) Q (cfs) Q (cfs) Hyd. No. 7 -- 10 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. 7

52 Precipitation Report Hydraflow Hydrographs Extension for Autodesk® Civil 3D® by Autodesk, Inc. v2023 Friday, 01 / 27 / 2023 Hyd. No. 7 DA-4 (Impervious) 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. 7 : DA-4 (Impervious) - 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

53 Hydrograph Report Hydraflow Hydrographs Extension for Autodesk® Civil 3D® by Autodesk, Inc. v2023 Friday, 01 / 27 / 2023 Hyd. No. 8 DA-2 Hydrograph type = Combine Peak discharge = 11.76 cfs Storm frequency = 10 yrs Time to peak = 12.10 hrs Time interval = 3 min Hyd. volume = 48,412 cuft Inflow hyds. = 2, 3 Contrib. drain. area = 4.480 ac DA-2 Q (cfs) Q (cfs) Hyd. No. 8 -- 10 Year 12.00 12.00 10.00 10.00 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 Time (hrs) Hyd No. 8 Hyd No. 2 Hyd No. 3

54 Hydrograph Report Hydraflow Hydrographs Extension for Autodesk® Civil 3D® by Autodesk, Inc. v2023 Friday, 01 / 27 / 2023 Hyd. No. 9 DA-3 Hydrograph type = Combine Peak discharge = 17.48 cfs Storm frequency = 10 yrs Time to peak = 12.10 hrs Time interval = 3 min Hyd. volume = 72,050 cuft Inflow hyds. = 4, 5 Contrib. drain. area = 6.970 ac DA-3 Q (cfs) Q (cfs) Hyd. No. 9 -- 10 Year 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 Time (hrs) Hyd No. 9 Hyd No. 4 Hyd No. 5

55 Hydrograph Report Hydraflow Hydrographs Extension for Autodesk® Civil 3D® by Autodesk, Inc. v2023 Friday, 01 / 27 / 2023 Hyd. No. 10 DA-4 Hydrograph type = Combine Peak discharge = 8.123 cfs Storm frequency = 10 yrs Time to peak = 12.10 hrs Time interval = 3 min Hyd. volume = 37,327 cuft Inflow hyds. = 6, 7 Contrib. drain. area = 5.930 ac DA-4 Q (cfs) Q (cfs) Hyd. No. 10 -- 10 Year 10.00 10.00 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 Time (hrs) Hyd No. 10 Hyd No. 6 Hyd No. 7

56 Hydrograph Report Hydraflow Hydrographs Extension for Autodesk® Civil 3D® by Autodesk, Inc. v2023 Friday, 01 / 27 / 2023 Hyd. No. 11 Basin #3 Hydrograph type = Reservoir Peak discharge = 5.430 cfs Storm frequency = 10 yrs Time to peak = 12.20 hrs Time interval = 3 min Hyd. volume = 37,326 cuft Inflow hyd. No. = 10 - DA-4 Max. Elevation = 418.09 ft Reservoir name = Basin #3 Max. Storage = 5,539 cuft Storage Indication method used. Basin #3 Q (cfs) Q (cfs) Hyd. No. 11 -- 10 Year 10.00 10.00 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 Time (hrs) Hyd No. 11 Hyd No. 10 Total storage used = 5,539 cuft

57 Hydrograph Report Hydraflow Hydrographs Extension for Autodesk® Civil 3D® by Autodesk, Inc. v2023 Friday, 01 / 27 / 2023 Hyd. No. 12 Basin #2 Hydrograph type = Reservoir Peak discharge = 14.78 cfs Storm frequency = 10 yrs Time to peak = 12.20 hrs Time interval = 3 min Hyd. volume = 72,049 cuft Inflow hyd. No. = 9 - DA-3 Max. Elevation = 416.78 ft Reservoir name = Basin #2 Max. Storage = 9,392 cuft Storage Indication method used. Basin #2 Q (cfs) Q (cfs) Hyd. No. 12 -- 10 Year 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 Time (hrs)