V4 11 Stormwater Report Rev 3 1 26 2023

STORM SEWER COMPUTATIONS Project: Daughters of Israel RATIONAL METHOD - (Q=CIA) Date: 01/26/23 25 YR. STORM By: JAF PIPE SEGMENT Pipe Travel Time(min) Pipe/Box Length (FT.) Capacity (FULL) (cfs) Velocity (Design) (fps) I-Rainfall Int. (in./hr) Qp-Peak Runoff (cfs) Pipe/Box Size (IN.) AxC-Incremental

Pipe/Box Size (IN.) AxC-Incremental Cumulative (cfs) Qp-Peak Runoff C-Runoff Coef. A-Incremental Tc (MIN.) Slope (%) FROM TO Type "B" #6-4 Type "B" #6-3 0.64 0.75 0.48 6.0 5.60 2.69 2.69 2.0% 15" HDPE 10.83 8.82 0.00 Type "B" #6-3 Type "B" #6-2 0.34 0.75 0.26 6.0 5.60 1.43 4.12 2.0% 15" HDPE 10.83 8.82 0.00 Type "B" #6-2 Type "B" #6-1 5.37 0.75 4.03 6.0 5.60 22.55 26.67 2.0% 24" HDPE 34.75 11.06 0.00 Type "B" #7-2 Type "B" #7-1 0.18 0.99 0.18 6.0 5.60 1.00 1.00 1.0% 15" HDPE 7.65 6.24 0.00 Type "B" #7-1 Type "E" #6-1 0.03 0.99 0.03 6.0 5.60 0.17 1.16

0.00 Type "B" #7-1 Type "E" #6-1 0.03 0.99 0.03 6.0 5.60 0.17 1.16 1.0% 15" HDPE 7.65 6.24 0.00 Type "E" #6-1 Basin #2 0.15 0.99 0.15 6.0 5.60 0.83 28.67 2.0% 24" HDPE 34.75 11.06 0.00 2'x2' #10-3 Type "E" #10-2 0.07 0.99 0.07 6.0 5.60 0.39 0.39 1.0% 12" PVC 4.22 5.38 0.00 Phase 1 Roof Leaders Type "E" #10-2 1.03 0.99 1.02 6.0 5.60 5.71 5.71 1.0% 10" PVC 7.8* 4.76 0.00 Type "E" #10-2 Subsurface Basin #1A 0 0.99 0.00 6.0 5.60 0.00 6.10 1.0% 15" HDPE 7.65 6.24 0.00 Subsurface Basin #1A MH #5-6 5.88 3.5% 24" HDPE 45.97 14.63 0.00 Basin #2 MH #5-6 21.66 2.0% 24" HDPE 34.75 11.06 0.00 MH #5-6 Type "B" #5-5 27.54 3.5% 24" HDPE

27.54 3.5% 24" HDPE 45.97 14.63 0.00 Type "B" #5-5A Type "B" #5-5 0.04 0.99 0.04 6.0 5.60 0.22 0.22 2.0% 15" HDPE 10.83 8.82 0.00 Type "B" #5-5 Type "B" #5-4 0.05 0.99 0.05 6.0 5.60 0.28 28.04 3.5% 24" HDPE 45.97 14.63 0.00 Type "B" #5-4A Type "B" #5-4 0.3 0.99 0.30 6.0 5.60 1.66 1.66 2.0% 15" HDPE 10.83 8.82 0.00 Type "B" #5-4 Type "B" #5-2 0.03 0.99 0.03 6.0 5.60 0.17 29.87 3.5% 24" HDPE 45.97 14.63 0.00 Type "B" #5-2A Type "B" #5-2 0.37 0.99 0.37 6.0 5.60 2.05 2.05 2.0% 15" HDPE 10.83 8.82 0.00 Type "B" #5-2 Type "B" #5-1 0.06 0.99 0.06 6.0 5.60 0.33 32.25 3.5% 24" HDPE 45.97 14.63 0.00