V4 11 Stormwater Report Rev 3 1 26 2023

0.20 0.15 0.15 0.10 0.10 0.05 0.05 0.00 0.00 0 3 6 9 12 15 18 21 24 27 Time (hrs) Hyd No. 16

64 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 = 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. 16 : DA-1A (Courtyard 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

0.00 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

65 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 = 0.221 cfs Storm frequency = 10 yrs Time to peak = 12.05 hrs Time interval = 3 min Hyd. volume = 824 cuft Inflow hyds. = 15, 16 Contrib. drain. area = 0.060 ac <no description> Q (cfs) Q (cfs) Hyd. No. 17 -- 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

0.05 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

66 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 = 4.542 cfs Storm frequency = 10 yrs Time to peak = 12.05 hrs Time interval = 3 min Hyd. volume = 17,079 cuft Inflow hyds. = 1, 17 Contrib. drain. area = 1.030 ac <no description> Q (cfs) Q (cfs) Hyd. No. 18 -- 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. 18 Hyd No. 1 Hyd No. 17

67 Hydrograph Report Hydraflow Hydrographs Extension for Autodesk® Civil 3D® by Autodesk, Inc. v2023 Friday, 01 / 27 / 2023 Hyd. No. 19 <no description> Hydrograph type = Reservoir Peak discharge = 5.092 cfs Storm frequency = 10 yrs Time to peak = 12.10 hrs Time interval = 3 min Hyd. volume = 17,079 cuft Inflow hyd. No. = 18 - <no description> Max. Elevation = 421.80 ft Reservoir name = Basin #1A Max. Storage = 1,470 cuft Storage Indication method used. <no description> Q (cfs) Q (cfs) Hyd. No. 19 -- 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. 19 Hyd No. 18 Total storage used = 1,470 cuft

68 Hydrograph Report Hydraflow Hydrographs Extension for Autodesk® Civil 3D® by Autodesk, Inc. v2023 Friday, 01 / 27 / 2023 Hyd. No. 20 <no description> Hydrograph type = Combine Peak discharge = 39.24 cfs Storm frequency = 10 yrs Time to peak = 12.10 hrs Time interval = 3 min Hyd. volume = 201,813 cuft Inflow hyds. = 8, 11, 12, 14, 19 Contrib. drain. area = 0.000 ac <no description> Q (cfs) Q (cfs) Hyd. No. 20 -- 10 Year 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. 20 Hyd No. 8 Hyd No. 11 Hyd No. 12 Hyd No. 14 Hyd No. 19

69 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 7.302 3 723 28,248 ------ ------ ------ DA-1A (Roof) 2 SCS Runoff 14.72 3 729 59,533 ------ ------ ------ DA-2 (Pervious) 3 SCS Runoff 9.312 3 723 37,250 ------ ------ ------ DA-2 (Impervious) 4 SCS Runoff 26.10 3 729 105,761 ------ ------ ------ DA-3 (Pervious) 5 SCS Runoff 10.39 3 723 41,548 ------ ------ ------ DA-3 (Impervious) 6 SCS Runoff 13.24 3 729 54,258 ------ ------ ------ DA-4 (Pervious) 7 SCS Runoff 8.237 3 723 32,952 ------ ------ ------ DA-4 (Impervious) 8 Combine 23.52 3 726 96,782 2, 3, ------ ------ DA-2 9 Combine 35.79 3 726 147,309 4, 5, ------ ------ DA-3 10 Combine 20.65 3 726 87,210 6, 7, ------ ------ DA-4 11 Reservoir 15.74 3 732 87,208 10 419.95 10,462 Basin #3 12 Reservoir 31.90 3 729 147,308 9 417.96 13,372 Basin #2 13 SCS Runoff 12.34 3 723 47,277 ------ ------ ------ DA-1B (Roof) 14 Reservoir 12.33 3 726 47,277 13 407.97 3,031 Basin #1B 15 SCS Runoff 0.182 3 723 638 ------ ------ ------ DA-1A (Courtyard Pervious) 16 SCS Runoff 0.215 3 723 860 ------ ------ ------ DA-1A (Courtyard Impervious) 17 Combine 0.397 3

DA-1A (Courtyard Pervious) 16 SCS Runoff 0.215 3 723 860 ------ ------ ------ DA-1A (Courtyard Impervious) 17 Combine 0.397 3 723 1,497 15, 16 ------ ------ <no description> 18 Combine 7.698 3 723 29,746 1, 17 ------ ------ <no description> 19 Reservoir 7.726 3 723 29,745 18 421.99 1,506 <no description> 20 Combine 86.61 3 726 408,320 8, 11, 12, ------ ------ <no description> 14, 19 Proposed Conditions - Green Roof.gpw Return Period: 100 Year Friday, 01 / 27 / 2023