V3 RESUBMISSION Stormwater Management Report Rev 2 Dated November 3 2022

32 Hydrograph Summary Report Hydraflow Hydrographs Extension for Autodesk® Civil 3D® by Autodesk, Inc. v2023 Hyd. Hydrograph Peak Time Time to Hyd. Inflow Maximum Total Hydrograph No. type flow interval Peak volume hyd(s) elevation strge used Description (origin) (cfs) (min) (min) (cuft) (ft) (cuft) 1 SCS Runoff 4.905 3 723 19,331 ------ ------ ------ DA-1A (Roof) 2 SCS Runoff 6.814 3 729 27,428 ------ ------ ------ DA-2 (Pervious) 3 SCS Runoff 5.250 3 723 20,688 ------ ------ ------ DA-2 (Impervious) 4 SCS Runoff 11.88 3 729 47,806 ------ ------ ------ DA-3 (Pervious) 5 SCS Runoff 5.938 3 723 23,401 ------ ------ ------ DA-3 (Impervious) 6 SCS Runoff 3.743 3 729 18,050 ------ ------ ------ DA-4 (Pervious) 7 SCS Runoff 4.647 3 723 18,314 ------ ------ ------ DA-4 (Impervious) 8 Combine 11.70 3 726 48,116 2, 3, ------ ------ DA-2 9 Combine 17.27 3 726 71,207 4, 5, ------ ------ DA-3 10 Combine 7.872 3 726 36,364 6, 7, ------ ------ DA-4 11 Reservoir 5.580 3 732 36,363 10 418.05 4,581 Basin #3 12 Reservoir 3.723 3 729 19,330 1 421.29 2,838 Basin #1A 13 Reservoir 14.61 3 732 71,205 9 416.72 9,200 Basin #2 14 SCS Runoff 7.530 3 723 29,675 ------ ------ ------ DA-1B (Roof) 15 Reservoir 6.009 3 729 29,674 14 407.36 3,997 Basin #1B 16 Combine 39.73 3 729 204,688 8, 11, 12, ------ ------ <no description> 13,

Basin #1B 16 Combine 39.73 3 729 204,688 8, 11, 12, ------ ------ <no description> 13, 15 Proposed Conditions.gpw Return Period: 10 Year Wednesday, 11 / 2 / 2022

33 Hydrograph Report Hydraflow Hydrographs Extension for Autodesk® Civil 3D® by Autodesk, Inc. v2023 Wednesday, 11 / 2 / 2022 Hyd. No. 1 DA-1A (Roof) Hydrograph type = SCS Runoff Peak discharge = 4.905 cfs Storm frequency = 10 yrs Time to peak = 12.05 hrs Time interval = 3 min Hyd. volume = 19,331 cuft Drainage area = 1.140 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-1A (Roof) Q (cfs) Q (cfs) Hyd. No. 1 -- 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) Hyd No. 1

34 Precipitation Report Hydraflow Hydrographs Extension for Autodesk® Civil 3D® by Autodesk, Inc. v2023 Wednesday, 11 / 2 / 2022 Hyd. No. 1 DA-1A (Roof) 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. 1 : DA-1A (Roof) - 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 0.0 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

35 Hydrograph Report Hydraflow Hydrographs Extension for Autodesk® Civil 3D® by Autodesk, Inc. v2023 Wednesday, 11 / 2 / 2022 Hyd. No. 2 DA-2 (Pervious) Hydrograph type = SCS Runoff Peak discharge = 6.814 cfs Storm frequency = 10 yrs Time to peak = 12.15 hrs Time interval = 3 min Hyd. volume = 27,428 cuft Drainage area = 3.190 ac Curve number = 72* Basin Slope = 0.0 % Hydraulic length = 0 ft Tc method = User Time of conc. (Tc) = 10.10 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 * Composite (Area/CN) = [(0.450 x 30) + (0.100 x 77) + (0.150 x 70) + (2.490 x 80)] / 3.190 DA-2 (Pervious) Q (cfs) Q (cfs) Hyd. No. 2 -- 10 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

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. 2

36 Precipitation Report Hydraflow Hydrographs Extension for Autodesk® Civil 3D® by Autodesk, Inc. v2023 Wednesday, 11 / 2 / 2022 Hyd. No. 2 DA-2 (Pervious) 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. 2 : DA-2 (Pervious) - 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

0.00 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

37 Hydrograph Report Hydraflow Hydrographs Extension for Autodesk® Civil 3D® by Autodesk, Inc. v2023 Wednesday, 11 / 2 / 2022 Hyd. No. 3 DA-2 (Impervious) Hydrograph type = SCS Runoff Peak discharge = 5.250 cfs Storm frequency = 10 yrs Time to peak = 12.05 hrs Time interval = 3 min Hyd. volume = 20,688 cuft Drainage area = 1.220 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-2 (Impervious) Q (cfs) Q (cfs) Hyd. No. 3 -- 10 Year 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