Supporting Documentation · Sep 18, 2025
Drainage Report and Supplement 82625
bcd98012577ef8ed87fe6b7b9ec8a3a82b402972e6f63512bceb3552d68204a5Indexed text
51.45 0.00 0.00 51.50 0.00 0.00 51.55 0.00 0.00 51.60 0.00 0.00 51.65 0.00 0.00 51.70 0.00 0.00 51.75 0.00 0.00 51.80 0.00 0.00 51.85 0.00 0.00 51.90 0.00 0.00 51.95 0.00 0.00 Time Subcat E-2 Subcat P-2 (hours) (cfs) (cfs) 52.00 0.00 0.00 52.05 0.00 0.00 52.10 0.00 0.00 52.15 0.00 0.00 52.20 0.00 0.00 52.25 0.00 0.00 52.30 0.00 0.00 52.35 0.00 0.00 52.40 0.00 0.00 52.45 0.00 0.00 52.50 0.00 0.00 52.55 0.00 0.00 52.60 0.00 0.00 52.65 0.00 0.00 52.70 0.00 0.00 52.75 0.00 0.00 52.80 0.00 0.00 52.85 0.00 0.00 52.90 0.00 0.00 52.95 0.00 0.00 53.00 0.00 0.00 53.05 0.00 0.00 53.10 0.00 0.00 53.15 0.00 0.00 53.20 0.00 0.00 53.25 0.00 0.00 53.30 0.00 0.00 53.35 0.00 0.00 53.40 0.00 0.00 53.45 0.00 0.00 53.50 0.00 0.00 53.55 0.00 0.00 53.60 0.00 0.00 53.65 0.00 0.00 53.70 0.00 0.00 53.75 0.00 0.00 53.80 0.00 0.00 53.85 0.00 0.00 53.90 0.00 0.00 53.95 0.00 0.00 54.00 0.00 0.00 54.05 0.00 0.00 54.10 0.00 0.00 54.15 0.00 0.00 54.20 0.00 0.00 54.25 0.00 0.00 54.30 0.00 0.00 54.35 0.00 0.00 54.40 0.00 0.00 54.45 0.00 0.00 54.50 0.00 0.00 54.55 0.00 0.00
NOAA 24-hr D 10-Year-2050 Rainfall=6.37", P2=4.09" Printed 8/13/2025 Prepared by Stonefield Engineering & Design 2025-08-13_Stormwater Calculations HydroCAD® 10.20-5c s/n 10626 © 2023 HydroCAD Software Solutions LLC Primary Comparison (continued) Time Subcat E-2 Subcat P-2 (hours) (cfs) (cfs) 54.60 0.00 0.00 54.65 0.00 0.00 54.70 0.00 0.00 54.75 0.00 0.00 54.80 0.00 0.00 54.85 0.00 0.00 54.90 0.00 0.00 54.95 0.00 0.00 55.00 0.00 0.00 55.05 0.00 0.00 55.10 0.00 0.00 55.15 0.00 0.00 55.20 0.00 0.00 55.25 0.00 0.00 55.30 0.00 0.00 55.35 0.00 0.00 55.40 0.00 0.00 55.45 0.00 0.00 55.50 0.00 0.00 55.55 0.00 0.00 55.60 0.00 0.00 55.65 0.00 0.00 55.70 0.00 0.00 55.75 0.00 0.00 55.80 0.00 0.00 55.85 0.00 0.00 55.90 0.00 0.00 55.95 0.00 0.00 56.00 0.00 0.00 56.05 0.00 0.00 56.10 0.00 0.00 56.15 0.00 0.00 56.20 0.00 0.00 56.25 0.00 0.00 56.30 0.00 0.00 56.35 0.00 0.00 56.40 0.00 0.00 56.45 0.00 0.00 56.50 0.00 0.00 56.55 0.00 0.00 56.60 0.00 0.00 56.65 0.00 0.00 56.70 0.00 0.00 56.75 0.00 0.00 56.80 0.00 0.00 56.85 0.00 0.00 56.90 0.00 0.00 56.95 0.00 0.00 57.00 0.00 0.00 57.05 0.00 0.00 57.10 0.00 0.00 57.15 0.00 0.00 Time Subcat E-2 Subcat P-2 (hours) (cfs) (cfs) 57.20 0.00 0.00 57.25 0.00 0.00 57.30 0.00 0.00 57.35 0.00 0.00 57.40 0.00 0.00 57.45 0.00 0.00 57.50 0.00 0.00 57.55 0.00 0.00 57.60 0.00 0.00 57.65 0.00 0.00 57.70 0.00 0.00 57.75 0.00 0.00 57.80 0.00 0.00 57.85 0.00 0.00 57.90 0.00 0.00 57.95 0.00 0.00 58.00 0.00 0.00 58.05 0.00 0.00 58.10 0.00 0.00 58.15 0.00 0.00 58.20 0.00 0.00 58.25 0.00 0.00 58.30 0.00 0.00 58.35 0.00 0.00 58.40 0.00 0.00 58.45 0.00 0.00 58.50 0.00 0.00 58.55 0.00 0.00 58.60 0.00 0.00 58.65 0.00 0.00 58.70 0.00 0.00 58.75 0.00 0.00 58.80 0.00 0.00 58.85 0.00 0.00 58.90 0.00 0.00 58.95 0.00 0.00 59.00 0.00 0.00 59.05 0.00 0.00 59.10 0.00 0.00 59.15 0.00 0.00 59.20 0.00 0.00 59.25 0.00 0.00 59.30 0.00 0.00 59.35 0.00 0.00 59.40 0.00 0.00 59.45 0.00 0.00 59.50 0.00 0.00 59.55 0.00 0.00 59.60 0.00 0.00 59.65 0.00 0.00 59.70 0.00 0.00 59.75 0.00 0.00 Time Subcat E-2 Subcat
59.25 0.00 0.00 59.30 0.00 0.00 59.35 0.00 0.00 59.40 0.00 0.00 59.45 0.00 0.00 59.50 0.00 0.00 59.55 0.00 0.00 59.60 0.00 0.00 59.65 0.00 0.00 59.70 0.00 0.00 59.75 0.00 0.00 Time Subcat E-2 Subcat P-2 (hours) (cfs) (cfs) 59.80 0.00 0.00 59.85 0.00 0.00 59.90 0.00 0.00 59.95 0.00 0.00 60.00 0.00 0.00 60.05 0.00 0.00 60.10 0.00 0.00 60.15 0.00 0.00 60.20 0.00 0.00 60.25 0.00 0.00 60.30 0.00 0.00 60.35 0.00 0.00 60.40 0.00 0.00 60.45 0.00 0.00 60.50 0.00 0.00 60.55 0.00 0.00 60.60 0.00 0.00 60.65 0.00 0.00 60.70 0.00 0.00 60.75 0.00 0.00 60.80 0.00 0.00 60.85 0.00 0.00 60.90 0.00 0.00 60.95 0.00 0.00 61.00 0.00 0.00 61.05 0.00 0.00 61.10 0.00 0.00 61.15 0.00 0.00 61.20 0.00 0.00 61.25 0.00 0.00 61.30 0.00 0.00 61.35 0.00 0.00 61.40 0.00 0.00 61.45 0.00 0.00 61.50 0.00 0.00 61.55 0.00 0.00 61.60 0.00 0.00 61.65 0.00 0.00 61.70 0.00 0.00 61.75 0.00 0.00 61.80 0.00 0.00 61.85 0.00 0.00 61.90 0.00 0.00 61.95 0.00 0.00 62.00 0.00 0.00 62.05 0.00 0.00 62.10 0.00 0.00 62.15 0.00 0.00 62.20 0.00 0.00 62.25 0.00 0.00 62.30 0.00 0.00 62.35 0.00 0.00
NOAA 24-hr D 10-Year-2050 Rainfall=6.37", P2=4.09" Printed 8/13/2025 Prepared by Stonefield Engineering & Design 2025-08-13_Stormwater Calculations HydroCAD® 10.20-5c s/n 10626 © 2023 HydroCAD Software Solutions LLC Primary Comparison (continued) Time Subcat E-2 Subcat P-2 (hours) (cfs) (cfs) 62.40 0.00 0.00 62.45 0.00 0.00 62.50 0.00 0.00 62.55 0.00 0.00 62.60 0.00 0.00 62.65 0.00 0.00 62.70 0.00 0.00 62.75 0.00 0.00 62.80 0.00 0.00 62.85 0.00 0.00 62.90 0.00 0.00 62.95 0.00 0.00 63.00 0.00 0.00 63.05 0.00 0.00 63.10 0.00 0.00 63.15 0.00 0.00 63.20 0.00 0.00 63.25 0.00 0.00 63.30 0.00 0.00 63.35 0.00 0.00 63.40 0.00 0.00 63.45 0.00 0.00 63.50 0.00 0.00 63.55 0.00 0.00 63.60 0.00 0.00 63.65 0.00 0.00 63.70 0.00 0.00 63.75 0.00 0.00 63.80 0.00 0.00 63.85 0.00 0.00 63.90 0.00 0.00 63.95 0.00 0.00 64.00 0.00 0.00 64.05 0.00 0.00 64.10 0.00 0.00 64.15 0.00 0.00 64.20 0.00 0.00 64.25 0.00 0.00 64.30 0.00 0.00 64.35 0.00 0.00 64.40 0.00 0.00 64.45 0.00 0.00 64.50 0.00 0.00 64.55 0.00 0.00 64.60 0.00 0.00 64.65 0.00 0.00 64.70 0.00 0.00 64.75 0.00 0.00 64.80 0.00 0.00 64.85 0.00 0.00 64.90 0.00 0.00 64.95 0.00 0.00 Time Subcat E-2 Subcat P-2 (hours) (cfs) (cfs) 65.00 0.00 0.00 65.05 0.00 0.00 65.10 0.00 0.00 65.15 0.00 0.00 65.20 0.00 0.00 65.25 0.00 0.00 65.30 0.00 0.00 65.35 0.00 0.00 65.40 0.00 0.00 65.45 0.00 0.00 65.50 0.00 0.00 65.55 0.00 0.00 65.60 0.00 0.00 65.65 0.00 0.00 65.70 0.00 0.00 65.75 0.00 0.00 65.80 0.00 0.00 65.85 0.00 0.00 65.90 0.00 0.00 65.95 0.00 0.00 66.00 0.00 0.00 66.05 0.00 0.00 66.10 0.00 0.00 66.15 0.00 0.00 66.20 0.00 0.00 66.25 0.00 0.00 66.30 0.00 0.00 66.35 0.00 0.00 66.40 0.00 0.00 66.45 0.00 0.00 66.50 0.00 0.00 66.55 0.00 0.00 66.60 0.00 0.00 66.65 0.00 0.00 66.70 0.00 0.00 66.75 0.00 0.00 66.80 0.00 0.00 66.85 0.00 0.00 66.90 0.00 0.00 66.95 0.00 0.00 67.00 0.00 0.00 67.05 0.00 0.00 67.10 0.00 0.00 67.15 0.00 0.00 67.20 0.00 0.00 67.25 0.00 0.00 67.30 0.00 0.00 67.35 0.00 0.00 67.40 0.00 0.00 67.45 0.00 0.00 67.50 0.00 0.00 67.55 0.00 0.00 Time Subcat E-2 Subcat
67.05 0.00 0.00 67.10 0.00 0.00 67.15 0.00 0.00 67.20 0.00 0.00 67.25 0.00 0.00 67.30 0.00 0.00 67.35 0.00 0.00 67.40 0.00 0.00 67.45 0.00 0.00 67.50 0.00 0.00 67.55 0.00 0.00 Time Subcat E-2 Subcat P-2 (hours) (cfs) (cfs) 67.60 0.00 0.00 67.65 0.00 0.00 67.70 0.00 0.00 67.75 0.00 0.00 67.80 0.00 0.00 67.85 0.00 0.00 67.90 0.00 0.00 67.95 0.00 0.00 68.00 0.00 0.00 68.05 0.00 0.00 68.10 0.00 0.00 68.15 0.00 0.00 68.20 0.00 0.00 68.25 0.00 0.00 68.30 0.00 0.00 68.35 0.00 0.00 68.40 0.00 0.00 68.45 0.00 0.00 68.50 0.00 0.00 68.55 0.00 0.00 68.60 0.00 0.00 68.65 0.00 0.00 68.70 0.00 0.00 68.75 0.00 0.00 68.80 0.00 0.00 68.85 0.00 0.00 68.90 0.00 0.00 68.95 0.00 0.00 69.00 0.00 0.00 69.05 0.00 0.00 69.10 0.00 0.00 69.15 0.00 0.00 69.20 0.00 0.00 69.25 0.00 0.00 69.30 0.00 0.00 69.35 0.00 0.00 69.40 0.00 0.00 69.45 0.00 0.00 69.50 0.00 0.00 69.55 0.00 0.00 69.60 0.00 0.00 69.65 0.00 0.00 69.70 0.00 0.00 69.75 0.00 0.00 69.80 0.00 0.00 69.85 0.00 0.00 69.90 0.00 0.00 69.95 0.00 0.00 70.00 0.00 0.00 70.05 0.00 0.00 70.10 0.00 0.00 70.15 0.00 0.00
NOAA 24-hr D 10-Year-2050 Rainfall=6.37", P2=4.09" Printed 8/13/2025 Prepared by Stonefield Engineering & Design 2025-08-13_Stormwater Calculations HydroCAD® 10.20-5c s/n 10626 © 2023 HydroCAD Software Solutions LLC Primary Comparison (continued) Time Subcat E-2 Subcat P-2 (hours) (cfs) (cfs) 70.20 0.00 0.00 70.25 0.00 0.00 70.30 0.00 0.00 70.35 0.00 0.00 70.40 0.00 0.00 70.45 0.00 0.00 70.50 0.00 0.00 70.55 0.00 0.00 70.60 0.00 0.00 70.65 0.00 0.00 70.70 0.00 0.00 70.75 0.00 0.00 70.80 0.00 0.00 70.85 0.00 0.00 70.90 0.00 0.00 70.95 0.00 0.00 71.00 0.00 0.00 71.05 0.00 0.00 71.10 0.00 0.00 71.15 0.00 0.00 71.20 0.00 0.00 71.25 0.00 0.00 71.30 0.00 0.00 71.35 0.00 0.00 71.40 0.00 0.00 71.45 0.00 0.00 71.50 0.00 0.00 71.55 0.00 0.00 71.60 0.00 0.00 71.65 0.00 0.00 71.70 0.00 0.00 71.75 0.00 0.00 71.80 0.00 0.00 71.85 0.00 0.00 71.90 0.00 0.00 71.95 0.00 0.00 72.00 0.00 0.00
2025-08-13_Stormwater Calculations NOAA 24-hr D 100-Year-2050 Rainfall=11.52", P2=4.09" Prepared by Stonefield Engineering & Design Printed 8/13/2025 HydroCAD® 10.20-5c s/n 10626 © 2023 HydroCAD Software Solutions LLC Primary Comparison 40 36.07 cfs 38 36.01 cfs 36 34 32 30 28 Primary (cfs) 26 24 22 20 18 16 14 12 10 8 6 4 2 0 0 2 4 6 8 10 12 14 16 18 20 22 24 26 28 30 32 34 36 38 40 42 44 46 48 50 52 54 56 58 60 62 64 66 68 70 72 Time (hours) Subcat E-2 Subcat P-2
2025-08-13_Stormwater Calculations NOAA 24-hr D 100-Year-2050 Rainfall=11.52", P2=4.09" Printed 8/13/2025 Prepared by Stonefield Engineering & Design HydroCAD® 10.20-5c s/n 10626 © 2023 HydroCAD Software Solutions LLC Primary Comparison Time Subcat E-2 Subcat P-2 (hours) (cfs) (cfs) 0.00 0.00 0.00 0.05 0.00 0.00 0.10 0.00 0.00 0.15 0.00 0.00 0.20 0.00 0.00 0.25 0.00 0.00 0.30 0.00 0.00 0.35 0.00 0.00 0.40 0.00 0.00 0.45 0.01 0.01 0.50 0.02 0.02 0.55 0.02 0.02 0.60 0.03 0.03 0.65 0.03 0.03 0.70 0.04 0.04 0.75 0.04 0.04 0.80 0.04 0.04 0.85 0.05 0.05 0.90 0.05 0.05 0.95 0.05 0.05 1.00 0.06 0.06 1.05 0.06 0.06 1.10 0.06 0.06 1.15 0.07 0.06 1.20 0.07 0.07 1.25 0.07 0.07 1.30 0.07 0.07 1.35 0.07 0.07 1.40 0.08 0.08 1.45 0.08 0.08 1.50 0.08 0.08 1.55 0.08 0.08 1.60 0.08 0.08 1.65 0.09 0.08 1.70 0.09 0.09 1.75 0.09 0.09 1.80 0.09 0.09 1.85 0.09 0.09 1.90 0.09 0.09 1.95 0.09 0.09 2.00 0.10 0.09 2.05 0.10 0.10 2.10 0.10 0.10 2.15 0.10 0.10 2.20 0.10 0.10 2.25 0.10 0.10 2.30 0.10 0.10 2.35 0.11 0.10 2.40 0.11 0.10 2.45 0.11 0.11 2.50 0.11 0.11 2.55 0.11 0.11 Time Subcat E-2 Subcat P-2 (hours) (cfs) (cfs) 2.60 0.11 0.11 2.65 0.11 0.11 2.70 0.11 0.11 2.75 0.11 0.11 2.80 0.11 0.11 2.85 0.12 0.11 2.90 0.12 0.11 2.95 0.12 0.12 3.00 0.12 0.12 3.05 0.12 0.12 3.10 0.12 0.12 3.15 0.12 0.12 3.20 0.12 0.12 3.25 0.12 0.12 3.30 0.12 0.12 3.35 0.12 0.12 3.40 0.12 0.12 3.45 0.13 0.12 3.50 0.13 0.13 3.55 0.13 0.13 3.60 0.13 0.13 3.65 0.13 0.13 3.70 0.13 0.13 3.75 0.13 0.13 3.80 0.13 0.13 3.85 0.13 0.13 3.90 0.13 0.13 3.95 0.13 0.13 4.00 0.13 0.13 4.05 0.14 0.14 4.10 0.14 0.14 4.15 0.14 0.14 4.20 0.15 0.15 4.25 0.15 0.15 4.30 0.15 0.15 4.35 0.16 0.16 4.40 0.16 0.16 4.45 0.16 0.16 4.50 0.17 0.16 4.55 0.17 0.17 4.60 0.17 0.17 4.65 0.18 0.18 4.70 0.18 0.18 4.75 0.18 0.18 4.80 0.19 0.19 4.85 0.19 0.19 4.90 0.19 0.19 4.95 0.20 0.20 5.00 0.20 0.20 5.05 0.20 0.20 5.10 0.21 0.21 5.15 0.21 0.21 Time Subcat E-2 Subcat
0 0.17 0.17 4.65 0.18 0.18 4.70 0.18 0.18 4.75 0.18 0.18 4.80 0.19 0.19 4.85 0.19 0.19 4.90 0.19 0.19 4.95 0.20 0.20 5.00 0.20 0.20 5.05 0.20 0.20 5.10 0.21 0.21 5.15 0.21 0.21 Time Subcat E-2 Subcat P-2 (hours) (cfs) (cfs) 5.20 0.21 0.21 5.25 0.22 0.22 5.30 0.22 0.22 5.35 0.22 0.22 5.40 0.23 0.22 5.45 0.23 0.23 5.50 0.23 0.23 5.55 0.24 0.24 5.60 0.24 0.24 5.65 0.24 0.24 5.70 0.25 0.25 5.75 0.25 0.25 5.80 0.25 0.25 5.85 0.26 0.26 5.90 0.26 0.26 5.95 0.26 0.26 6.00 0.27 0.27 6.05 0.28 0.27 6.10 0.28 0.28 6.15 0.29 0.28 6.20 0.29 0.29 6.25 0.30 0.30 6.30 0.30 0.30 6.35 0.31 0.31 6.40 0.32 0.31 6.45 0.32 0.32 6.50 0.33 0.33 6.55 0.34 0.34 6.60 0.34 0.34 6.65 0.35 0.35 6.70 0.36 0.35 6.75 0.37 0.36 6.80 0.37 0.37 6.85 0.38 0.38 6.90 0.38 0.38 6.95 0.39 0.39 7.00 0.40 0.40 7.05 0.41 0.41 7.10 0.41 0.41 7.15 0.42 0.42 7.20 0.43 0.43 7.25 0.44 0.44 7.30 0.44 0.44 7.35 0.45 0.45 7.40 0.46 0.46 7.45 0.47 0.47 7.50 0.47 0.47 7.55 0.48 0.48 7.60 0.49 0.49 7.65 0.50 0.50 7.70 0.51 0.50 7.75 0.52 0.51
2025-08-13_Stormwater Calculations NOAA 24-hr D 100-Year-2050 Rainfall=11.52", P2=4.09" Printed 8/13/2025 Prepared by Stonefield Engineering & Design HydroCAD® 10.20-5c s/n 10626 © 2023 HydroCAD Software Solutions LLC Primary Comparison (continued) Time Subcat E-2 Subcat P-2 (hours) (cfs) (cfs) 7.80 0.52 0.52 7.85 0.53 0.53 7.90 0.54 0.53 7.95 0.55 0.55 8.00 0.56 0.55 8.05 0.57 0.56 8.10 0.57 0.57 8.15 0.58 0.58 8.20 0.59 0.59 8.25 0.60 0.60 8.30 0.60 0.60 8.35 0.62 0.61 8.40 0.63 0.62 8.45 0.63 0.63 8.50 0.64 0.64 8.55 0.65 0.65 8.60 0.66 0.66 8.65 0.67 0.67 8.70 0.68 0.67 8.75 0.69 0.68 8.80 0.69 0.69 8.85 0.70 0.70 8.90 0.71 0.71 8.95 0.72 0.72 9.00 0.73 0.73 9.05 0.76 0.76 9.10 0.78 0.77 9.15 0.81 0.80 9.20 0.82 0.82 9.25 0.85 0.85 9.30 0.87 0.87 9.35 0.90 0.90 9.40 0.92 0.91 9.45 0.95 0.95 9.50 0.97 0.96 9.55 1.00 1.00 9.60 1.02 1.02 9.65 1.05 1.05 9.70 1.07 1.06 9.75 1.11 1.10 9.80 1.12 1.12 9.85 1.16 1.15 9.90 1.18 1.17 9.95 1.21 1.21 10.00 1.23 1.23 10.05 1.27 1.26 10.10 1.29 1.28 10.15 1.32 1.32 10.20 1.34 1.34 10.25 1.38 1.38 10.30 1.40 1.39 10.35 1.44 1.43 Time Subcat E-2 Subcat P-2 (hours) (cfs) (cfs) 10.40 1.45 1.45 10.45 1.49 1.49 10.50 1.51 1.51 10.55 1.64 1.63 10.60 1.69 1.68 10.65 1.82 1.81 10.70 1.87 1.87 10.75 2.00 1.99 10.80 2.06 2.05 10.85 2.19 2.18 10.90 2.25 2.24 10.95 2.38 2.38 11.00 2.44 2.43 11.05 2.67 2.66 11.10 2.77 2.76 11.15 3.01 3.00 11.20 3.11 3.10 11.25 3.35 3.34 11.30 3.46 3.45 11.35 3.70 3.69 11.40 3.81 3.80 11.45 4.06 4.05 11.50 4.17 4.16 11.55 5.23 5.22 11.60 5.68 5.66 11.65 5.96 5.95 11.70 6.08 6.07 11.75 7.74 7.72 11.80 8.44 8.42 11.85 10.89 10.87 11.90 11.92 11.90 11.95 18.29 18.26 12.00 21.00 20.96 12.05 31.55 31.50 12.10 36.05 35.99 12.15 19.88 19.85 12.20 13.31 13.30 12.25 10.35 10.34 12.30 9.37 9.36 12.35 7.55 7.54 12.40 6.86 6.85 12.45 6.58 6.57 12.50 6.49 6.49 12.55 5.32 5.31 12.60 4.86 4.86 12.65 4.58 4.57 12.70 4.48 4.48 12.75 4.22 4.21 12.80 4.12 4.12 12.85 3.86 3.85 12.90 3.76 3.75 12.95 3.50 3.49 Time Subcat E-2 Subcat
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