V4 11 Stormwater Report Rev 3 1 26 2023

95 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 = 55.19 cfs Storm frequency = 100 yrs Time to peak = 12.10 hrs Time interval = 3 min Hyd. volume = 232,179 cuft Inflow hyds. = 8, 17 Contrib. drain. area = 0.000 ac Combined - SS Southern Driveway Q (cfs) Q (cfs) Hyd. No. 18 -- 100 Year 60.00 60.00 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. 18 Hyd No. 8 Hyd No. 17

96 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 = 96.75 cfs Storm frequency = 100 yrs Time to peak = 12.10 hrs Time interval = 3 min Hyd. volume = 401,465 cuft Inflow hyds. = 5, 11, 14, 15, 18 Contrib. drain. area = 4.030 ac Total Offsite Q (cfs) Q (cfs) Hyd. No. 19 -- 100 Year 100.00 100.00 90.00 90.00 80.00 80.00 70.00 70.00 60.00 60.00 50.00 50.00 40.00 40.00 30.00 30.00 20.00 20.00 10.00 10.00 0.00

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

97 Hydraflow Rainfall Report Hydraflow Hydrographs Extension for Autodesk® Civil 3D® by Autodesk, Inc. v2023 Wednesday, 11 / 2 / 2022 Return Intensity-Duration-Frequency Equation Coefficients (FHA) Period (Yrs) B D E (N/A) 1 0.0000 0.0000 0.0000 -------- 2 69.8703 13.1000 0.8658 -------- 3 0.0000 0.0000 0.0000 -------- 5 79.2597 14.6000 0.8369 -------- 10 88.2351 15.5000 0.8279 -------- 25 102.6072 16.5000 0.8217 -------- 50 114.8193 17.2000 0.8199 -------- 100 127.1596 17.8000 0.8186 -------- File name: SampleFHA.idf Intensity = B / (Tc + D)^E Return Intensity Values (in/hr) Period (Yrs) 5 min 10 15 20 25 30 35 40 45 50 55 60 1 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 2 5.69 4.61 3.89 3.38 2.99 2.69 2.44 2.24 2.07 1.93 1.81 1.70 3 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 5 6.57 5.43 4.65 4.08 3.65 3.30 3.02 2.79 2.59 2.42 2.27 2.15 10 7.24 6.04 5.21 4.59 4.12 3.74 3.43 3.17 2.95 2.77 2.60 2.46 25 8.25 6.95 6.03

10 7.24 6.04 5.21 4.59 4.12 3.74 3.43 3.17 2.95 2.77 2.60 2.46 25 8.25 6.95 6.03 5.34 4.80 4.38 4.02 3.73 3.48 3.26 3.07 2.91 50 9.04 7.65 6.66 5.92 5.34 4.87 4.49 4.16 3.88 3.65 3.44 3.25 100 9.83 8.36 7.30 6.50 5.87 5.36 4.94 4.59 4.29 4.03 3.80 3.60 Tc = time in minutes. Values may exceed 60. \Petry Engineering Cad Projects\2019\19 0265 Daughters of Israel - West Orange\Civil\Current\Stormwater\Rainfall.pcp Rainfall Precipitation Table (in) Storm Distribution 1-yr 2-yr 3-yr 5-yr 10-yr 25-yr 50-yr 100-yr SCS 24-hour 0.00 3.44 0.00 0.00 0.00 0.00 0.00 0.00 SCS 6-Hr 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Huff-1st 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Huff-2nd 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Huff-3rd 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Huff-4th 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Huff-Indy 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Custom 0.00 3.44 0.00 0.00 5.22 6.44 0.00 8.66

PROPOSED CONDITIONS HYDROGRAPHS

Hydraflow Table of Contents Proposed Conditions - Green Roof.gpw Hydraflow Hydrographs Extension for Autodesk® Civil 3D® by Autodesk, Inc. v2023 Friday, 01 / 27 / 2023 Watershed Model Schematic...................................................................................... 1 Hydrograph Return Period Recap............................................................................. 2 2 - Year Summary Report......................................................................................................................... 3 Hydrograph Reports................................................................................................................... 4 Hydrograph No. 1, SCS Runoff, DA-1A (Roof)......................................................................... 4 Precipitation Report............................................................................................................. 5 Hydrograph No. 2, SCS Runoff, DA-2 (Pervious).................................................................... 6 Precipitation Report............................................................................................................. 7 Hydrograph No. 3, SCS Runoff, DA-2 (Impervious)................................................................. 8 Precipitation Report............................................................................................................. 9 Hydrograph No. 4, SCS Runoff, DA-3 (Pervious).................................................................. 10 Precipitation Report........................................................................................................... 11 Hydrograph No. 5, SCS Runoff, DA-3 (Impervious)............................................................... 12 Precipitation Report........................................................................................................... 13 Hydrograph No. 6, SCS Runoff, DA-4 (Pervious).................................................................. 14 Precipitation

.............................................. 13 Hydrograph No. 6, SCS Runoff, DA-4 (Pervious).................................................................. 14 Precipitation Report........................................................................................................... 15 Hydrograph No. 7, SCS Runoff, DA-4 (Impervious)............................................................... 16 Precipitation Report........................................................................................................... 17 Hydrograph No. 8, Combine, DA-2........................................................................................ 18 Hydrograph No. 9, Combine, DA-3........................................................................................ 19 Hydrograph No. 10, Combine, DA-4...................................................................................... 20 Hydrograph No. 11, Reservoir, Basin #3................................................................................ 21 Pond Report - Basin #3..................................................................................................... 22 Hydrograph No. 12, Reservoir, Basin #2................................................................................ 23 Pond Report - Basin #2..................................................................................................... 24 Hydrograph No. 13, SCS Runoff, DA-1B (Roof).................................................................... 25 Precipitation Report........................................................................................................... 26 Hydrograph No. 14, Reservoir, Basin #1B............................................................................. 27 Pond Report - Basin #1B................................................................................................... 28 Hydrograph No. 15, SCS Runoff, DA-1A (Courtyard Pervious)............................................. 29 Precipitation Report........................................................................................................... 30 Hydrograph No. 16, SCS Runoff, DA-1A (Courtyard

Precipitation Report........................................................................................................... 30 Hydrograph No. 16, SCS Runoff, DA-1A (Courtyard Impervious).......................................... 31 Precipitation Report........................................................................................................... 32 Hydrograph No. 17, Combine, <no description>.................................................................... 33 Hydrograph No. 18, Combine, <no description>.................................................................... 34 Hydrograph No. 19, Reservoir, <no description>................................................................... 35 Pond Report - Basin #1A................................................................................................... 36 Hydrograph No. 20, Combine, <no description>.................................................................... 37 10 - Year Summary Report....................................................................................................................... 38 Hydrograph Reports................................................................................................................. 39 Hydrograph No. 1, SCS Runoff, DA-1A (Roof)....................................................................... 39 Precipitation Report........................................................................................................... 40 Hydrograph No. 2, SCS Runoff, DA-2 (Pervious).................................................................. 41

Contents continued... Proposed Conditions - Green Roof.gpw Precipitation Report........................................................................................................... 42 Hydrograph No. 3, SCS Runoff, DA-2 (Impervious)............................................................... 43 Precipitation Report........................................................................................................... 44 Hydrograph No. 4, SCS Runoff, DA-3 (Pervious).................................................................. 45 Precipitation Report........................................................................................................... 46 Hydrograph No. 5, SCS Runoff, DA-3 (Impervious)............................................................... 47 Precipitation Report........................................................................................................... 48 Hydrograph No. 6, SCS Runoff, DA-4 (Pervious).................................................................. 49 Precipitation Report........................................................................................................... 50 Hydrograph No. 7, SCS Runoff, DA-4 (Impervious)............................................................... 51 Precipitation Report........................................................................................................... 52 Hydrograph No. 8, Combine, DA-2........................................................................................ 53 Hydrograph No. 9, Combine, DA-3........................................................................................ 54 Hydrograph No. 10, Combine, DA-4...................................................................................... 55 Hydrograph No. 11, Reservoir, Basin #3................................................................................ 56 Hydrograph No. 12, Reservoir, Basin #2................................................................................ 57 Hydrograph No. 13, SCS Runoff, DA-1B (Roof).................................................................... 58 Precipitation