ZB 22 13 2023 03 Drainage Statement

NOTES: Project: Proposed Popeyes & Fast Food Restaurant Computed By: DG 1) Design method used is Rational Method, unless otherwise noted. Job #: 1021-99-025 Checked By: MB 2) Refer to Weighted Runoff Coefficient table Location: West Orange, NJ Date: 3/30/2023 for calculation of incremental areas and C values Design Storm: 25 Year SUBCATCHMENT TIME OF PIPE SECTION INCREMENTAL CUMULATIVE I PEAK RUNOFF PIPING INPUT PIPING DATA AREA CONCENTRATION Tc to Tc in Final Q to Q cum. Pipe Pipe Dia. Length Man. Slope FROM TO Area (Acres) "C" A x C Ac A x C (acres) Inlet Pipe Tc (In/Hr) Inlet for Pipe Capacity Velocity (In) (Ft) "n" (ft/ft) (min) (min.) (min) (CFS) (CFS) (cfs) (fps) Inlet A-112 Inlet A-111 0.17 0.81 0.14 0.14 10.00 0.23 10.00 6.80 0.95 0.95 12 93.0 0.013 0.0214 5.21 6.64 Inlet A-111 Inlet A-110 0.11 0.89 0.10 0.24 10.00 0.13 10.23 6.80 0.68 1.63 12 55.0 0.013 0.0254 5.68 7.24 Inlet A-131 Inlet A-140 0.14 0.78 0.11

0.24 10.00 0.13 10.23 6.80 0.68 1.63 12 55.0 0.013 0.0254 5.68 7.24 Inlet A-131 Inlet A-140 0.14 0.78 0.11 0.11 10.00 0.22 10.00 6.80 0.75 0.75 12 60.0 0.013 0.0101 3.58 4.56 Inlet A-140 Manhole A-130 0.20 0.73 0.15 0.26 10.00 0.20 10.22 6.80 1.02 1.77 12 53.0 0.013 0.0099 3.54 4.51 Sonic Roof Manhole A-130 0.04 0.95 0.04 0.04 10.00 0.15 10.00 6.80 0.27 0.27 6 80.0 0.010 0.0550 1.71 8.71 Manhole A-130 Inlet A-120 0.00 0.00 0.00 0.30 10.00 0.33 10.42 6.80 0.00 2.04 12 91.0 0.013 0.0101 3.58 4.56 Inlet A-120 Inlet A-110 0.18 0.74 0.13 0.43 10.00 0.30 10.75 6.68 0.87 2.87 12 114.0 0.013 0.0201 5.05 6.43 Inlet A-110 Existing Inlet 0.11 0.94 0.10 0.77 10.00 0.09 11.05 6.56 0.66 5.05 15 39.0 0.013 0.0205 9.25 7.54