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8807.Peak Discharge(10.19.22)(Full Report)
Pre-DevelopmentPost-Development 1S Post-Development Watershed - S1 2S Post-Development Watershed - S2 3S Post-Development Watershed - S3 4S Post-Development Watershed - S4 5S Post-Development Watershed - S5 6S Post-Development Watershed - Non-Recharge Areas Only 9S Pre-Development Watershed - Entire Site 1R Post-Development Peak Discharge Rate 9R Pre-Development Peak Discharge Rate S1 Grassed Swale Leaching - S1 S2 Grassed Swale Leaching - S2 S3 Grassed Swale Leaching - S3 S4 Grassed Swale Leaching - S4 S5 Grassed Swale Leaching - S5 Routing Diagram for 8807.Peak Discharge(10.19.22) Prepared by J.M. O'Reilly & Associates, Inc., Printed 10/24/2022 HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Subcat Reach Pond Link Type III 24-hr 2-year Rainfall=3.36"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 2HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 1S: Post-Development Watershed - S1 Runoff = 0.06 cfs @ 12.38 hrs, Volume= 0.013 af, Depth= 0.27" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-27.99 hrs, dt= 0.03 hrs Type III 24-hr 2-year Rainfall=3.36" Area (sf) CN Description 5,977 98 Paved parking, HSG A 18,300 39 >75% Grass cover, Good, HSG A 24,277 54 Weighted Average 18,300 75.38% Pervious Area 5,977 24.62% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 8.0 50 0.0200 0.10 Sheet Flow, Grass: Dense n= 0.240 P2= 3.36" 1.5 110 0.0300 1.21 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 9.5 160 Total Subcatchment 1S: Post-Development Watershed - S1 Runoff Hydrograph Time (hours) 26242220181614121086420Flow (cfs)0.065 0.06 0.055 0.05 0.045 0.04 0.035 0.03 0.025 0.02 0.015 0.01 0.005 0 Type III 24-hr 2-year Rainfall=3.36" Runoff Area=24,277 sf Runoff Volume=0.013 af Runoff Depth=0.27" Flow Length=160' Tc=9.5 min CN=54 0.06 cfs Type III 24-hr 2-year Rainfall=3.36"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 3HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Hydrograph for Subcatchment 1S: Post-Development Watershed - S1 Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 0.00 0.00 0.00 0.00 0.30 0.01 0.00 0.00 0.60 0.02 0.00 0.00 0.90 0.03 0.00 0.00 1.20 0.04 0.00 0.00 1.50 0.05 0.00 0.00 1.80 0.06 0.00 0.00 2.10 0.07 0.00 0.00 2.40 0.08 0.00 0.00 2.70 0.09 0.00 0.00 3.00 0.10 0.00 0.00 3.30 0.12 0.00 0.00 3.60 0.13 0.00 0.00 3.90 0.14 0.00 0.00 4.20 0.15 0.00 0.00 4.50 0.17 0.00 0.00 4.80 0.18 0.00 0.00 5.10 0.20 0.00 0.00 5.40 0.21 0.00 0.00 5.70 0.23 0.00 0.00 6.00 0.24 0.00 0.00 6.30 0.26 0.00 0.00 6.60 0.28 0.00 0.00 6.90 0.30 0.00 0.00 7.20 0.32 0.00 0.00 7.50 0.34 0.00 0.00 7.80 0.37 0.00 0.00 8.10 0.39 0.00 0.00 8.40 0.42 0.00 0.00 8.70 0.45 0.00 0.00 9.00 0.49 0.00 0.00 9.30 0.53 0.00 0.00 9.60 0.57 0.00 0.00 9.90 0.62 0.00 0.00 10.20 0.67 0.00 0.00 10.50 0.73 0.00 0.00 10.80 0.79 0.00 0.00 11.10 0.87 0.00 0.00 11.40 0.96 0.00 0.00 11.70 1.14 0.00 0.00 12.00 1.68 0.00 0.00 12.30 2.22 0.03 0.06 12.60 2.40 0.05 0.04 12.90 2.49 0.07 0.03 13.20 2.57 0.08 0.02 13.50 2.63 0.09 0.02 13.80 2.69 0.10 0.02 14.10 2.74 0.11 0.02 14.40 2.79 0.12 0.02 14.70 2.83 0.13 0.02 15.00 2.87 0.14 0.02 15.30 2.91 0.15 0.02 Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 15.60 2.94 0.16 0.01 15.90 2.97 0.16 0.01 16.20 2.99 0.17 0.01 16.50 3.02 0.18 0.01 16.80 3.04 0.18 0.01 17.10 3.06 0.19 0.01 17.40 3.08 0.19 0.01 17.70 3.10 0.20 0.01 18.00 3.12 0.20 0.01 18.30 3.13 0.21 0.01 18.60 3.15 0.21 0.01 18.90 3.16 0.21 0.01 19.20 3.18 0.22 0.01 19.50 3.19 0.22 0.01 19.80 3.21 0.23 0.01 20.10 3.22 0.23 0.01 20.40 3.23 0.23 0.01 20.70 3.25 0.24 0.01 21.00 3.26 0.24 0.01 21.30 3.27 0.24 0.01 21.60 3.28 0.25 0.01 21.90 3.29 0.25 0.01 22.20 3.30 0.25 0.01 22.50 3.31 0.26 0.01 22.80 3.32 0.26 0.01 23.10 3.33 0.26 0.01 23.40 3.34 0.26 0.01 23.70 3.35 0.27 0.01 24.00 3.36 0.27 0.00 24.30 3.36 0.27 0.00 24.60 3.36 0.27 0.00 24.90 3.36 0.27 0.00 25.20 3.36 0.27 0.00 25.50 3.36 0.27 0.00 25.80 3.36 0.27 0.00 26.10 3.36 0.27 0.00 26.40 3.36 0.27 0.00 26.70 3.36 0.27 0.00 27.00 3.36 0.27 0.00 27.30 3.36 0.27 0.00 27.60 3.36 0.27 0.00 27.90 3.36 0.27 0.00 Type III 24-hr 2-year Rainfall=3.36"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 4HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 2S: Post-Development Watershed - S2 Runoff = 0.00 cfs @ 23.83 hrs, Volume= 0.000 af, Depth= 0.00" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-27.99 hrs, dt= 0.03 hrs Type III 24-hr 2-year Rainfall=3.36" Area (sf) CN Description 9,726 39 >75% Grass cover, Good, HSG A 9,726 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, (minimum) 5.0 0 Total, Increased to minimum Tc = 6.0 min Subcatchment 2S: Post-Development Watershed - S2 Runoff Hydrograph Time (hours) 26242220181614121086420Flow (cfs)0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 0 0 0 0 0 0 0 0 0 Type III 24-hr 2-year Rainfall=3.36" Runoff Area=9,726 sf Runoff Volume=0.000 af Runoff Depth=0.00" Tc=6.0 min CN=39 0.00 cfs Type III 24-hr 2-year Rainfall=3.36"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 5HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Hydrograph for Subcatchment 2S: Post-Development Watershed - S2 Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 0.00 0.00 0.00 0.00 0.30 0.01 0.00 0.00 0.60 0.02 0.00 0.00 0.90 0.03 0.00 0.00 1.20 0.04 0.00 0.00 1.50 0.05 0.00 0.00 1.80 0.06 0.00 0.00 2.10 0.07 0.00 0.00 2.40 0.08 0.00 0.00 2.70 0.09 0.00 0.00 3.00 0.10 0.00 0.00 3.30 0.12 0.00 0.00 3.60 0.13 0.00 0.00 3.90 0.14 0.00 0.00 4.20 0.15 0.00 0.00 4.50 0.17 0.00 0.00 4.80 0.18 0.00 0.00 5.10 0.20 0.00 0.00 5.40 0.21 0.00 0.00 5.70 0.23 0.00 0.00 6.00 0.24 0.00 0.00 6.30 0.26 0.00 0.00 6.60 0.28 0.00 0.00 6.90 0.30 0.00 0.00 7.20 0.32 0.00 0.00 7.50 0.34 0.00 0.00 7.80 0.37 0.00 0.00 8.10 0.39 0.00 0.00 8.40 0.42 0.00 0.00 8.70 0.45 0.00 0.00 9.00 0.49 0.00 0.00 9.30 0.53 0.00 0.00 9.60 0.57 0.00 0.00 9.90 0.62 0.00 0.00 10.20 0.67 0.00 0.00 10.50 0.73 0.00 0.00 10.80 0.79 0.00 0.00 11.10 0.87 0.00 0.00 11.40 0.96 0.00 0.00 11.70 1.14 0.00 0.00 12.00 1.68 0.00 0.00 12.30 2.22 0.00 0.00 12.60 2.40 0.00 0.00 12.90 2.49 0.00 0.00 13.20 2.57 0.00 0.00 13.50 2.63 0.00 0.00 13.80 2.69 0.00 0.00 14.10 2.74 0.00 0.00 14.40 2.79 0.00 0.00 14.70 2.83 0.00 0.00 15.00 2.87 0.00 0.00 15.30 2.91 0.00 0.00 Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 15.60 2.94 0.00 0.00 15.90 2.97 0.00 0.00 16.20 2.99 0.00 0.00 16.50 3.02 0.00 0.00 16.80 3.04 0.00 0.00 17.10 3.06 0.00 0.00 17.40 3.08 0.00 0.00 17.70 3.10 0.00 0.00 18.00 3.12 0.00 0.00 18.30 3.13 0.00 0.00 18.60 3.15 0.00 0.00 18.90 3.16 0.00 0.00 19.20 3.18 0.00 0.00 19.50 3.19 0.00 0.00 19.80 3.21 0.00 0.00 20.10 3.22 0.00 0.00 20.40 3.23 0.00 0.00 20.70 3.25 0.00 0.00 21.00 3.26 0.00 0.00 21.30 3.27 0.00 0.00 21.60 3.28 0.00 0.00 21.90 3.29 0.00 0.00 22.20 3.30 0.00 0.00 22.50 3.31 0.00 0.00 22.80 3.32 0.00 0.00 23.10 3.33 0.00 0.00 23.40 3.34 0.00 0.00 23.70 3.35 0.00 0.00 24.00 3.36 0.00 0.00 24.30 3.36 0.00 0.00 24.60 3.36 0.00 0.00 24.90 3.36 0.00 0.00 25.20 3.36 0.00 0.00 25.50 3.36 0.00 0.00 25.80 3.36 0.00 0.00 26.10 3.36 0.00 0.00 26.40 3.36 0.00 0.00 26.70 3.36 0.00 0.00 27.00 3.36 0.00 0.00 27.30 3.36 0.00 0.00 27.60 3.36 0.00 0.00 27.90 3.36 0.00 0.00 Type III 24-hr 2-year Rainfall=3.36"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 6HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 3S: Post-Development Watershed - S3 Runoff = 0.00 cfs @ 22.54 hrs, Volume= 0.001 af, Depth= 0.01" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-27.99 hrs, dt= 0.03 hrs Type III 24-hr 2-year Rainfall=3.36" Area (sf) CN Description 2,900 98 Paved parking, HSG A 46,737 39 >75% Grass cover, Good, HSG A 25,000 36 Woods, Fair, HSG A 74,637 40 Weighted Average 71,737 96.11% Pervious Area 2,900 3.89% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.1 50 0.0400 0.14 Sheet Flow, Grass: Dense n= 0.240 P2= 3.36" 3.6 300 0.0400 1.40 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 0.7 150 0.1000 3.61 45.08 Channel Flow, Area= 12.5 sf Perim= 5.0' r= 2.50' n= 0.240 Sheet flow over Dense Grass 10.4 500 Total Subcatchment 3S: Post-Development Watershed - S3 Runoff Hydrograph Time (hours) 26242220181614121086420Flow (cfs)0.003 0.002 0.002 0.002 0.002 0.002 0.001 0.001 0.001 0.001 0.001 0.000 0.000 0 Type III 24-hr 2-year Rainfall=3.36" Runoff Area=74,637 sf Runoff Volume=0.001 af Runoff Depth=0.01" Flow Length=500' Tc=10.4 min CN=40 0.00 cfs Type III 24-hr 2-year Rainfall=3.36"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 7HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Hydrograph for Subcatchment 3S: Post-Development Watershed - S3 Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 0.00 0.00 0.00 0.00 0.30 0.01 0.00 0.00 0.60 0.02 0.00 0.00 0.90 0.03 0.00 0.00 1.20 0.04 0.00 0.00 1.50 0.05 0.00 0.00 1.80 0.06 0.00 0.00 2.10 0.07 0.00 0.00 2.40 0.08 0.00 0.00 2.70 0.09 0.00 0.00 3.00 0.10 0.00 0.00 3.30 0.12 0.00 0.00 3.60 0.13 0.00 0.00 3.90 0.14 0.00 0.00 4.20 0.15 0.00 0.00 4.50 0.17 0.00 0.00 4.80 0.18 0.00 0.00 5.10 0.20 0.00 0.00 5.40 0.21 0.00 0.00 5.70 0.23 0.00 0.00 6.00 0.24 0.00 0.00 6.30 0.26 0.00 0.00 6.60 0.28 0.00 0.00 6.90 0.30 0.00 0.00 7.20 0.32 0.00 0.00 7.50 0.34 0.00 0.00 7.80 0.37 0.00 0.00 8.10 0.39 0.00 0.00 8.40 0.42 0.00 0.00 8.70 0.45 0.00 0.00 9.00 0.49 0.00 0.00 9.30 0.53 0.00 0.00 9.60 0.57 0.00 0.00 9.90 0.62 0.00 0.00 10.20 0.67 0.00 0.00 10.50 0.73 0.00 0.00 10.80 0.79 0.00 0.00 11.10 0.87 0.00 0.00 11.40 0.96 0.00 0.00 11.70 1.14 0.00 0.00 12.00 1.68 0.00 0.00 12.30 2.22 0.00 0.00 12.60 2.40 0.00 0.00 12.90 2.49 0.00 0.00 13.20 2.57 0.00 0.00 13.50 2.63 0.00 0.00 13.80 2.69 0.00 0.00 14.10 2.74 0.00 0.00 14.40 2.79 0.00 0.00 14.70 2.83 0.00 0.00 15.00 2.87 0.00 0.00 15.30 2.91 0.00 0.00 Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 15.60 2.94 0.00 0.00 15.90 2.97 0.00 0.00 16.20 2.99 0.00 0.00 16.50 3.02 0.00 0.00 16.80 3.04 0.00 0.00 17.10 3.06 0.00 0.00 17.40 3.08 0.00 0.00 17.70 3.10 0.00 0.00 18.00 3.12 0.00 0.00 18.30 3.13 0.00 0.00 18.60 3.15 0.00 0.00 18.90 3.16 0.00 0.00 19.20 3.18 0.00 0.00 19.50 3.19 0.00 0.00 19.80 3.21 0.00 0.00 20.10 3.22 0.00 0.00 20.40 3.23 0.00 0.00 20.70 3.25 0.00 0.00 21.00 3.26 0.00 0.00 21.30 3.27 0.00 0.00 21.60 3.28 0.01 0.00 21.90 3.29 0.01 0.00 22.20 3.30 0.01 0.00 22.50 3.31 0.01 0.00 22.80 3.32 0.01 0.00 23.10 3.33 0.01 0.00 23.40 3.34 0.01 0.00 23.70 3.35 0.01 0.00 24.00 3.36 0.01 0.00 24.30 3.36 0.01 0.00 24.60 3.36 0.01 0.00 24.90 3.36 0.01 0.00 25.20 3.36 0.01 0.00 25.50 3.36 0.01 0.00 25.80 3.36 0.01 0.00 26.10 3.36 0.01 0.00 26.40 3.36 0.01 0.00 26.70 3.36 0.01 0.00 27.00 3.36 0.01 0.00 27.30 3.36 0.01 0.00 27.60 3.36 0.01 0.00 27.90 3.36 0.01 0.00 Type III 24-hr 2-year Rainfall=3.36"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 8HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 4S: Post-Development Watershed - S4 Runoff = 0.01 cfs @ 12.30 hrs, Volume= 0.002 af, Depth= 0.30" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-27.99 hrs, dt= 0.03 hrs Type III 24-hr 2-year Rainfall=3.36" Area (sf) CN Description 791 98 Paved parking, HSG A 2,053 39 >75% Grass cover, Good, HSG A 2,844 55 Weighted Average 2,053 72.19% Pervious Area 791 27.81% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, (minimum) 5.0 0 Total, Increased to minimum Tc = 6.0 min Subcatchment 4S: Post-Development Watershed - S4 Runoff Hydrograph Time (hours) 26242220181614121086420Flow (cfs)0.009 0.009 0.008 0.008 0.007 0.007 0.006 0.006 0.005 0.005 0.004 0.004 0.003 0.003 0.002 0.002 0.001 0.001 0.000 0 Type III 24-hr 2-year Rainfall=3.36" Runoff Area=2,844 sf Runoff Volume=0.002 af Runoff Depth=0.30" Tc=6.0 min CN=55 0.01 cfs Type III 24-hr 2-year Rainfall=3.36"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 9HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Hydrograph for Subcatchment 4S: Post-Development Watershed - S4 Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 0.00 0.00 0.00 0.00 0.30 0.01 0.00 0.00 0.60 0.02 0.00 0.00 0.90 0.03 0.00 0.00 1.20 0.04 0.00 0.00 1.50 0.05 0.00 0.00 1.80 0.06 0.00 0.00 2.10 0.07 0.00 0.00 2.40 0.08 0.00 0.00 2.70 0.09 0.00 0.00 3.00 0.10 0.00 0.00 3.30 0.12 0.00 0.00 3.60 0.13 0.00 0.00 3.90 0.14 0.00 0.00 4.20 0.15 0.00 0.00 4.50 0.17 0.00 0.00 4.80 0.18 0.00 0.00 5.10 0.20 0.00 0.00 5.40 0.21 0.00 0.00 5.70 0.23 0.00 0.00 6.00 0.24 0.00 0.00 6.30 0.26 0.00 0.00 6.60 0.28 0.00 0.00 6.90 0.30 0.00 0.00 7.20 0.32 0.00 0.00 7.50 0.34 0.00 0.00 7.80 0.37 0.00 0.00 8.10 0.39 0.00 0.00 8.40 0.42 0.00 0.00 8.70 0.45 0.00 0.00 9.00 0.49 0.00 0.00 9.30 0.53 0.00 0.00 9.60 0.57 0.00 0.00 9.90 0.62 0.00 0.00 10.20 0.67 0.00 0.00 10.50 0.73 0.00 0.00 10.80 0.79 0.00 0.00 11.10 0.87 0.00 0.00 11.40 0.96 0.00 0.00 11.70 1.14 0.00 0.00 12.00 1.68 0.00 0.00 12.30 2.22 0.04 0.01 12.60 2.40 0.06 0.00 12.90 2.49 0.08 0.00 13.20 2.57 0.10 0.00 13.50 2.63 0.11 0.00 13.80 2.69 0.12 0.00 14.10 2.74 0.13 0.00 14.40 2.79 0.14 0.00 14.70 2.83 0.15 0.00 15.00 2.87 0.16 0.00 15.30 2.91 0.17 0.00 Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 15.60 2.94 0.18 0.00 15.90 2.97 0.19 0.00 16.20 2.99 0.19 0.00 16.50 3.02 0.20 0.00 16.80 3.04 0.21 0.00 17.10 3.06 0.21 0.00 17.40 3.08 0.22 0.00 17.70 3.10 0.22 0.00 18.00 3.12 0.23 0.00 18.30 3.13 0.23 0.00 18.60 3.15 0.24 0.00 18.90 3.16 0.24 0.00 19.20 3.18 0.24 0.00 19.50 3.19 0.25 0.00 19.80 3.21 0.25 0.00 20.10 3.22 0.26 0.00 20.40 3.23 0.26 0.00 20.70 3.25 0.26 0.00 21.00 3.26 0.27 0.00 21.30 3.27 0.27 0.00 21.60 3.28 0.28 0.00 21.90 3.29 0.28 0.00 22.20 3.30 0.28 0.00 22.50 3.31 0.29 0.00 22.80 3.32 0.29 0.00 23.10 3.33 0.29 0.00 23.40 3.34 0.29 0.00 23.70 3.35 0.30 0.00 24.00 3.36 0.30 0.00 24.30 3.36 0.30 0.00 24.60 3.36 0.30 0.00 24.90 3.36 0.30 0.00 25.20 3.36 0.30 0.00 25.50 3.36 0.30 0.00 25.80 3.36 0.30 0.00 26.10 3.36 0.30 0.00 26.40 3.36 0.30 0.00 26.70 3.36 0.30 0.00 27.00 3.36 0.30 0.00 27.30 3.36 0.30 0.00 27.60 3.36 0.30 0.00 27.90 3.36 0.30 0.00 Type III 24-hr 2-year Rainfall=3.36"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 10HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 5S: Post-Development Watershed - S5 Runoff = 0.00 cfs @ 17.07 hrs, Volume= 0.001 af, Depth= 0.02" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-27.99 hrs, dt= 0.03 hrs Type III 24-hr 2-year Rainfall=3.36" Area (sf) CN Description 1,355 98 Paved parking, HSG A 16,825 39 >75% Grass cover, Good, HSG A 4,500 36 Woods, Fair, HSG A 22,680 42 Weighted Average 21,325 94.03% Pervious Area 1,355 5.97% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, (minimum) 5.0 0 Total, Increased to minimum Tc = 6.0 min Subcatchment 5S: Post-Development Watershed - S5 Runoff Hydrograph Time (hours) 26242220181614121086420Flow (cfs)0.002 0.002 0.002 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.000 0.000 0.000 0.000 0 0 Type III 24-hr 2-year Rainfall=3.36" Runoff Area=22,680 sf Runoff Volume=0.001 af Runoff Depth=0.02" Tc=6.0 min CN=42 0.00 cfs Type III 24-hr 2-year Rainfall=3.36"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 11HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Hydrograph for Subcatchment 5S: Post-Development Watershed - S5 Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 0.00 0.00 0.00 0.00 0.30 0.01 0.00 0.00 0.60 0.02 0.00 0.00 0.90 0.03 0.00 0.00 1.20 0.04 0.00 0.00 1.50 0.05 0.00 0.00 1.80 0.06 0.00 0.00 2.10 0.07 0.00 0.00 2.40 0.08 0.00 0.00 2.70 0.09 0.00 0.00 3.00 0.10 0.00 0.00 3.30 0.12 0.00 0.00 3.60 0.13 0.00 0.00 3.90 0.14 0.00 0.00 4.20 0.15 0.00 0.00 4.50 0.17 0.00 0.00 4.80 0.18 0.00 0.00 5.10 0.20 0.00 0.00 5.40 0.21 0.00 0.00 5.70 0.23 0.00 0.00 6.00 0.24 0.00 0.00 6.30 0.26 0.00 0.00 6.60 0.28 0.00 0.00 6.90 0.30 0.00 0.00 7.20 0.32 0.00 0.00 7.50 0.34 0.00 0.00 7.80 0.37 0.00 0.00 8.10 0.39 0.00 0.00 8.40 0.42 0.00 0.00 8.70 0.45 0.00 0.00 9.00 0.49 0.00 0.00 9.30 0.53 0.00 0.00 9.60 0.57 0.00 0.00 9.90 0.62 0.00 0.00 10.20 0.67 0.00 0.00 10.50 0.73 0.00 0.00 10.80 0.79 0.00 0.00 11.10 0.87 0.00 0.00 11.40 0.96 0.00 0.00 11.70 1.14 0.00 0.00 12.00 1.68 0.00 0.00 12.30 2.22 0.00 0.00 12.60 2.40 0.00 0.00 12.90 2.49 0.00 0.00 13.20 2.57 0.00 0.00 13.50 2.63 0.00 0.00 13.80 2.69 0.00 0.00 14.10 2.74 0.00 0.00 14.40 2.79 0.00 0.00 14.70 2.83 0.00 0.00 15.00 2.87 0.00 0.00 15.30 2.91 0.00 0.00 Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 15.60 2.94 0.00 0.00 15.90 2.97 0.00 0.00 16.20 2.99 0.00 0.00 16.50 3.02 0.00 0.00 16.80 3.04 0.01 0.00 17.10 3.06 0.01 0.00 17.40 3.08 0.01 0.00 17.70 3.10 0.01 0.00 18.00 3.12 0.01 0.00 18.30 3.13 0.01 0.00 18.60 3.15 0.01 0.00 18.90 3.16 0.01 0.00 19.20 3.18 0.01 0.00 19.50 3.19 0.01 0.00 19.80 3.21 0.01 0.00 20.10 3.22 0.01 0.00 20.40 3.23 0.02 0.00 20.70 3.25 0.02 0.00 21.00 3.26 0.02 0.00 21.30 3.27 0.02 0.00 21.60 3.28 0.02 0.00 21.90 3.29 0.02 0.00 22.20 3.30 0.02 0.00 22.50 3.31 0.02 0.00 22.80 3.32 0.02 0.00 23.10 3.33 0.02 0.00 23.40 3.34 0.02 0.00 23.70 3.35 0.02 0.00 24.00 3.36 0.02 0.00 24.30 3.36 0.02 0.00 24.60 3.36 0.02 0.00 24.90 3.36 0.02 0.00 25.20 3.36 0.02 0.00 25.50 3.36 0.02 0.00 25.80 3.36 0.02 0.00 26.10 3.36 0.02 0.00 26.40 3.36 0.02 0.00 26.70 3.36 0.02 0.00 27.00 3.36 0.02 0.00 27.30 3.36 0.02 0.00 27.60 3.36 0.02 0.00 27.90 3.36 0.02 0.00 Type III 24-hr 2-year Rainfall=3.36"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 12HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 6S: Post-Development Watershed - Non-Recharge Areas Only Runoff = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af, Depth= 0.00" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-27.99 hrs, dt= 0.03 hrs Type III 24-hr 2-year Rainfall=3.36" Area (sf) CN Description 609 98 Paved parking, HSG A 30,000 39 >75% Grass cover, Good, HSG A 127,481 36 Woods, Fair, HSG A 158,090 37 Weighted Average 157,481 99.61% Pervious Area 609 0.39% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.3 50 0.1000 0.13 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 3.36" 6.3 500 0.0700 1.32 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 12.6 550 Total Subcatchment 6S: Post-Development Watershed - Non-Recharge Areas Only Runoff Hydrograph Time (hours) 26242220181614121086420Flow (cfs)1 0 Type III 24-hr 2-year Rainfall=3.36" Runoff Area=158,090 sf Runoff Volume=0.000 af Runoff Depth=0.00" Flow Length=550' Tc=12.6 min CN=37 0.00 cfs Type III 24-hr 2-year Rainfall=3.36"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 13HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Hydrograph for Subcatchment 6S: Post-Development Watershed - Non-Recharge Areas Only Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 0.00 0.00 0.00 0.00 0.30 0.01 0.00 0.00 0.60 0.02 0.00 0.00 0.90 0.03 0.00 0.00 1.20 0.04 0.00 0.00 1.50 0.05 0.00 0.00 1.80 0.06 0.00 0.00 2.10 0.07 0.00 0.00 2.40 0.08 0.00 0.00 2.70 0.09 0.00 0.00 3.00 0.10 0.00 0.00 3.30 0.12 0.00 0.00 3.60 0.13 0.00 0.00 3.90 0.14 0.00 0.00 4.20 0.15 0.00 0.00 4.50 0.17 0.00 0.00 4.80 0.18 0.00 0.00 5.10 0.20 0.00 0.00 5.40 0.21 0.00 0.00 5.70 0.23 0.00 0.00 6.00 0.24 0.00 0.00 6.30 0.26 0.00 0.00 6.60 0.28 0.00 0.00 6.90 0.30 0.00 0.00 7.20 0.32 0.00 0.00 7.50 0.34 0.00 0.00 7.80 0.37 0.00 0.00 8.10 0.39 0.00 0.00 8.40 0.42 0.00 0.00 8.70 0.45 0.00 0.00 9.00 0.49 0.00 0.00 9.30 0.53 0.00 0.00 9.60 0.57 0.00 0.00 9.90 0.62 0.00 0.00 10.20 0.67 0.00 0.00 10.50 0.73 0.00 0.00 10.80 0.79 0.00 0.00 11.10 0.87 0.00 0.00 11.40 0.96 0.00 0.00 11.70 1.14 0.00 0.00 12.00 1.68 0.00 0.00 12.30 2.22 0.00 0.00 12.60 2.40 0.00 0.00 12.90 2.49 0.00 0.00 13.20 2.57 0.00 0.00 13.50 2.63 0.00 0.00 13.80 2.69 0.00 0.00 14.10 2.74 0.00 0.00 14.40 2.79 0.00 0.00 14.70 2.83 0.00 0.00 15.00 2.87 0.00 0.00 15.30 2.91 0.00 0.00 Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 15.60 2.94 0.00 0.00 15.90 2.97 0.00 0.00 16.20 2.99 0.00 0.00 16.50 3.02 0.00 0.00 16.80 3.04 0.00 0.00 17.10 3.06 0.00 0.00 17.40 3.08 0.00 0.00 17.70 3.10 0.00 0.00 18.00 3.12 0.00 0.00 18.30 3.13 0.00 0.00 18.60 3.15 0.00 0.00 18.90 3.16 0.00 0.00 19.20 3.18 0.00 0.00 19.50 3.19 0.00 0.00 19.80 3.21 0.00 0.00 20.10 3.22 0.00 0.00 20.40 3.23 0.00 0.00 20.70 3.25 0.00 0.00 21.00 3.26 0.00 0.00 21.30 3.27 0.00 0.00 21.60 3.28 0.00 0.00 21.90 3.29 0.00 0.00 22.20 3.30 0.00 0.00 22.50 3.31 0.00 0.00 22.80 3.32 0.00 0.00 23.10 3.33 0.00 0.00 23.40 3.34 0.00 0.00 23.70 3.35 0.00 0.00 24.00 3.36 0.00 0.00 24.30 3.36 0.00 0.00 24.60 3.36 0.00 0.00 24.90 3.36 0.00 0.00 25.20 3.36 0.00 0.00 25.50 3.36 0.00 0.00 25.80 3.36 0.00 0.00 26.10 3.36 0.00 0.00 26.40 3.36 0.00 0.00 26.70 3.36 0.00 0.00 27.00 3.36 0.00 0.00 27.30 3.36 0.00 0.00 27.60 3.36 0.00 0.00 27.90 3.36 0.00 0.00 Type III 24-hr 2-year Rainfall=3.36"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 14HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 9S: Pre-Development Watershed - Entire Site Runoff = 0.00 cfs @ 24.02 hrs, Volume= 0.001 af, Depth= 0.00" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-27.99 hrs, dt= 0.03 hrs Type III 24-hr 2-year Rainfall=3.36" Area (sf) CN Description 401,143 36 Woods, Fair, HSG A 120,000 43 Woods/grass comb., Fair, HSG A 521,143 38 Weighted Average 521,143 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 50 0.0780 0.12 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 3.36" 6.2 520 0.0780 1.40 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 13.2 570 Total Subcatchment 9S: Pre-Development Watershed - Entire Site Runoff Hydrograph Time (hours) 26242220181614121086420Flow (cfs)0.004 0.004 0.004 0.004 0.003 0.003 0.003 0.003 0.003 0.002 0.002 0.002 0.002 0.002 0.001 0.001 0.001 0.001 0.001 0.000 0.000 0 Type III 24-hr 2-year Rainfall=3.36" Runoff Area=521,143 sf Runoff Volume=0.001 af Runoff Depth=0.00" Flow Length=570' Slope=0.0780 '/' Tc=13.2 min CN=38 0.00 cfs Type III 24-hr 2-year Rainfall=3.36"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 15HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Hydrograph for Subcatchment 9S: Pre-Development Watershed - Entire Site Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 0.00 0.00 0.00 0.00 0.30 0.01 0.00 0.00 0.60 0.02 0.00 0.00 0.90 0.03 0.00 0.00 1.20 0.04 0.00 0.00 1.50 0.05 0.00 0.00 1.80 0.06 0.00 0.00 2.10 0.07 0.00 0.00 2.40 0.08 0.00 0.00 2.70 0.09 0.00 0.00 3.00 0.10 0.00 0.00 3.30 0.12 0.00 0.00 3.60 0.13 0.00 0.00 3.90 0.14 0.00 0.00 4.20 0.15 0.00 0.00 4.50 0.17 0.00 0.00 4.80 0.18 0.00 0.00 5.10 0.20 0.00 0.00 5.40 0.21 0.00 0.00 5.70 0.23 0.00 0.00 6.00 0.24 0.00 0.00 6.30 0.26 0.00 0.00 6.60 0.28 0.00 0.00 6.90 0.30 0.00 0.00 7.20 0.32 0.00 0.00 7.50 0.34 0.00 0.00 7.80 0.37 0.00 0.00 8.10 0.39 0.00 0.00 8.40 0.42 0.00 0.00 8.70 0.45 0.00 0.00 9.00 0.49 0.00 0.00 9.30 0.53 0.00 0.00 9.60 0.57 0.00 0.00 9.90 0.62 0.00 0.00 10.20 0.67 0.00 0.00 10.50 0.73 0.00 0.00 10.80 0.79 0.00 0.00 11.10 0.87 0.00 0.00 11.40 0.96 0.00 0.00 11.70 1.14 0.00 0.00 12.00 1.68 0.00 0.00 12.30 2.22 0.00 0.00 12.60 2.40 0.00 0.00 12.90 2.49 0.00 0.00 13.20 2.57 0.00 0.00 13.50 2.63 0.00 0.00 13.80 2.69 0.00 0.00 14.10 2.74 0.00 0.00 14.40 2.79 0.00 0.00 14.70 2.83 0.00 0.00 15.00 2.87 0.00 0.00 15.30 2.91 0.00 0.00 Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 15.60 2.94 0.00 0.00 15.90 2.97 0.00 0.00 16.20 2.99 0.00 0.00 16.50 3.02 0.00 0.00 16.80 3.04 0.00 0.00 17.10 3.06 0.00 0.00 17.40 3.08 0.00 0.00 17.70 3.10 0.00 0.00 18.00 3.12 0.00 0.00 18.30 3.13 0.00 0.00 18.60 3.15 0.00 0.00 18.90 3.16 0.00 0.00 19.20 3.18 0.00 0.00 19.50 3.19 0.00 0.00 19.80 3.21 0.00 0.00 20.10 3.22 0.00 0.00 20.40 3.23 0.00 0.00 20.70 3.25 0.00 0.00 21.00 3.26 0.00 0.00 21.30 3.27 0.00 0.00 21.60 3.28 0.00 0.00 21.90 3.29 0.00 0.00 22.20 3.30 0.00 0.00 22.50 3.31 0.00 0.00 22.80 3.32 0.00 0.00 23.10 3.33 0.00 0.00 23.40 3.34 0.00 0.00 23.70 3.35 0.00 0.00 24.00 3.36 0.00 0.00 24.30 3.36 0.00 0.00 24.60 3.36 0.00 0.00 24.90 3.36 0.00 0.00 25.20 3.36 0.00 0.00 25.50 3.36 0.00 0.00 25.80 3.36 0.00 0.00 26.10 3.36 0.00 0.00 26.40 3.36 0.00 0.00 26.70 3.36 0.00 0.00 27.00 3.36 0.00 0.00 27.30 3.36 0.00 0.00 27.60 3.36 0.00 0.00 27.90 3.36 0.00 0.00 Type III 24-hr 2-year Rainfall=3.36"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 16HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Summary for Reach 1R: Post-Development Peak Discharge Rate Inflow Area = 6.709 ac, 3.98% Impervious, Inflow Depth = 0.00" for 2-year event Inflow = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Outflow = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-27.99 hrs, dt= 0.03 hrs Reach 1R: Post-Development Peak Discharge Rate Inflow Outflow Hydrograph Time (hours) 26242220181614121086420Flow (cfs)1 0 Inflow Area=6.709 ac 0.00 cfs 0.00 cfs Type III 24-hr 2-year Rainfall=3.36"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 17HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Hydrograph for Reach 1R: Post-Development Peak Discharge Rate Time (hours) Inflow (cfs) Elevation (feet) Outflow (cfs) 0.00 0.00 0.00 0.30 0.00 0.00 0.60 0.00 0.00 0.90 0.00 0.00 1.20 0.00 0.00 1.50 0.00 0.00 1.80 0.00 0.00 2.10 0.00 0.00 2.40 0.00 0.00 2.70 0.00 0.00 3.00 0.00 0.00 3.30 0.00 0.00 3.60 0.00 0.00 3.90 0.00 0.00 4.20 0.00 0.00 4.50 0.00 0.00 4.80 0.00 0.00 5.10 0.00 0.00 5.40 0.00 0.00 5.70 0.00 0.00 6.00 0.00 0.00 6.30 0.00 0.00 6.60 0.00 0.00 6.90 0.00 0.00 7.20 0.00 0.00 7.50 0.00 0.00 7.80 0.00 0.00 8.10 0.00 0.00 8.40 0.00 0.00 8.70 0.00 0.00 9.00 0.00 0.00 9.30 0.00 0.00 9.60 0.00 0.00 9.90 0.00 0.00 10.20 0.00 0.00 10.50 0.00 0.00 10.80 0.00 0.00 11.10 0.00 0.00 11.40 0.00 0.00 11.70 0.00 0.00 12.00 0.00 0.00 12.30 0.00 0.00 12.60 0.00 0.00 12.90 0.00 0.00 13.20 0.00 0.00 13.50 0.00 0.00 13.80 0.00 0.00 14.10 0.00 0.00 14.40 0.00 0.00 14.70 0.00 0.00 15.00 0.00 0.00 15.30 0.00 0.00 Time (hours) Inflow (cfs) Elevation (feet) Outflow (cfs) 15.60 0.00 0.00 15.90 0.00 0.00 16.20 0.00 0.00 16.50 0.00 0.00 16.80 0.00 0.00 17.10 0.00 0.00 17.40 0.00 0.00 17.70 0.00 0.00 18.00 0.00 0.00 18.30 0.00 0.00 18.60 0.00 0.00 18.90 0.00 0.00 19.20 0.00 0.00 19.50 0.00 0.00 19.80 0.00 0.00 20.10 0.00 0.00 20.40 0.00 0.00 20.70 0.00 0.00 21.00 0.00 0.00 21.30 0.00 0.00 21.60 0.00 0.00 21.90 0.00 0.00 22.20 0.00 0.00 22.50 0.00 0.00 22.80 0.00 0.00 23.10 0.00 0.00 23.40 0.00 0.00 23.70 0.00 0.00 24.00 0.00 0.00 24.30 0.00 0.00 24.60 0.00 0.00 24.90 0.00 0.00 25.20 0.00 0.00 25.50 0.00 0.00 25.80 0.00 0.00 26.10 0.00 0.00 26.40 0.00 0.00 26.70 0.00 0.00 27.00 0.00 0.00 27.30 0.00 0.00 27.60 0.00 0.00 27.90 0.00 0.00 Type III 24-hr 2-year Rainfall=3.36"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 18HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Summary for Reach 9R: Pre-Development Peak Discharge Rate Inflow Area = 11.964 ac, 0.00% Impervious, Inflow Depth = 0.00" for 2-year event Inflow = 0.00 cfs @ 24.02 hrs, Volume= 0.001 af Outflow = 0.00 cfs @ 24.02 hrs, Volume= 0.001 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-27.99 hrs, dt= 0.03 hrs Reach 9R: Pre-Development Peak Discharge Rate Inflow Outflow Hydrograph Time (hours) 26242220181614121086420Flow (cfs)0.004 0.004 0.004 0.004 0.003 0.003 0.003 0.003 0.003 0.002 0.002 0.002 0.002 0.002 0.001 0.001 0.001 0.001 0.001 0.000 0.000 0 Inflow Area=11.964 ac 0.00 cfs 0.00 cfs Type III 24-hr 2-year Rainfall=3.36"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 19HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Hydrograph for Reach 9R: Pre-Development Peak Discharge Rate Time (hours) Inflow (cfs) Elevation (feet) Outflow (cfs) 0.00 0.00 0.00 0.30 0.00 0.00 0.60 0.00 0.00 0.90 0.00 0.00 1.20 0.00 0.00 1.50 0.00 0.00 1.80 0.00 0.00 2.10 0.00 0.00 2.40 0.00 0.00 2.70 0.00 0.00 3.00 0.00 0.00 3.30 0.00 0.00 3.60 0.00 0.00 3.90 0.00 0.00 4.20 0.00 0.00 4.50 0.00 0.00 4.80 0.00 0.00 5.10 0.00 0.00 5.40 0.00 0.00 5.70 0.00 0.00 6.00 0.00 0.00 6.30 0.00 0.00 6.60 0.00 0.00 6.90 0.00 0.00 7.20 0.00 0.00 7.50 0.00 0.00 7.80 0.00 0.00 8.10 0.00 0.00 8.40 0.00 0.00 8.70 0.00 0.00 9.00 0.00 0.00 9.30 0.00 0.00 9.60 0.00 0.00 9.90 0.00 0.00 10.20 0.00 0.00 10.50 0.00 0.00 10.80 0.00 0.00 11.10 0.00 0.00 11.40 0.00 0.00 11.70 0.00 0.00 12.00 0.00 0.00 12.30 0.00 0.00 12.60 0.00 0.00 12.90 0.00 0.00 13.20 0.00 0.00 13.50 0.00 0.00 13.80 0.00 0.00 14.10 0.00 0.00 14.40 0.00 0.00 14.70 0.00 0.00 15.00 0.00 0.00 15.30 0.00 0.00 Time (hours) Inflow (cfs) Elevation (feet) Outflow (cfs) 15.60 0.00 0.00 15.90 0.00 0.00 16.20 0.00 0.00 16.50 0.00 0.00 16.80 0.00 0.00 17.10 0.00 0.00 17.40 0.00 0.00 17.70 0.00 0.00 18.00 0.00 0.00 18.30 0.00 0.00 18.60 0.00 0.00 18.90 0.00 0.00 19.20 0.00 0.00 19.50 0.00 0.00 19.80 0.00 0.00 20.10 0.00 0.00 20.40 0.00 0.00 20.70 0.00 0.00 21.00 0.00 0.00 21.30 0.00 0.00 21.60 0.00 0.00 21.90 0.00 0.00 22.20 0.00 0.00 22.50 0.00 0.00 22.80 0.00 0.00 23.10 0.00 0.00 23.40 0.00 0.00 23.70 0.00 0.00 24.00 0.00 0.00 24.30 0.00 0.00 24.60 0.00 0.00 24.90 0.00 0.00 25.20 0.00 0.00 25.50 0.00 0.00 25.80 0.00 0.00 26.10 0.00 0.00 26.40 0.00 0.00 26.70 0.00 0.00 27.00 0.00 0.00 27.30 0.00 0.00 27.60 0.00 0.00 27.90 0.00 0.00 Type III 24-hr 2-year Rainfall=3.36"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 20HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Summary for Pond S1: Grassed Swale Leaching - S1 Inflow Area = 0.557 ac, 24.62% Impervious, Inflow Depth = 0.27" for 2-year event Inflow = 0.06 cfs @ 12.38 hrs, Volume= 0.013 af Outflow = 0.04 cfs @ 12.57 hrs, Volume= 0.013 af, Atten= 27%, Lag= 11.1 min Discarded = 0.04 cfs @ 12.57 hrs, Volume= 0.013 af Primary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-27.99 hrs, dt= 0.03 hrs Peak Elev= 50.03' @ 12.57 hrs Surf.Area= 788 sf Storage= 21 cf Plug-Flow detention time= 3.5 min calculated for 0.013 af (100% of inflow) Center-of-Mass det. time= 3.5 min ( 960.4 - 956.9 ) Volume Invert Avail.Storage Storage Description #1 50.00' 2,293 cf Grassed Swale (Irregular) Listed below (Recalc) Elevation Surf.Area Perim. Inc.Store Cum.Store Wet.Area (feet) (sq-ft) (feet) (cubic-feet) (cubic-feet) (sq-ft) 50.00 779 139.0 0 0 779 52.00 1,559 210.0 2,293 2,293 2,781 Device Routing Invert Outlet Devices #1 Discarded 50.00'2.410 in/hr Exfiltration over Wetted area Phase-In= 0.01' #2 Primary 51.90'10.0' long (Profile 6) Broad-Crested Rectangular Weir Head (feet) 0.49 0.98 1.48 Coef. (English) 3.12 3.41 3.59 Discarded OutFlow Max=0.04 cfs @ 12.57 hrs HW=50.03' (Free Discharge) 1=Exfiltration (Exfiltration Controls 0.04 cfs) Primary OutFlow Max=0.00 cfs @ 0.00 hrs HW=50.00' TW=0.00' (Dynamic Tailwater) 2=Broad-Crested Rectangular Weir ( Controls 0.00 cfs) Type III 24-hr 2-year Rainfall=3.36"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 21HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Pond S1: Grassed Swale Leaching - S1 Inflow Outflow Discarded Primary Hydrograph Time (hours) 26242220181614121086420Flow (cfs)0.065 0.06 0.055 0.05 0.045 0.04 0.035 0.03 0.025 0.02 0.015 0.01 0.005 0 Inflow Area=0.557 ac Peak Elev=50.03' Storage=21 cf 0.06 cfs 0.04 cfs 0.04 cfs 0.00 cfs Pond S1: Grassed Swale Leaching - S1 Total Discarded Primary Stage-Discharge Discharge (cfs) 10Elevation (feet)52 51 50 Exfiltration Broad-Crested Rectangular Weir Type III 24-hr 2-year Rainfall=3.36"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 22HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Pond S1: Grassed Swale Leaching - S1 Surface Wetted Storage Stage-Area-Storage Storage (cubic-feet) 2,2002,0001,8001,6001,4001,2001,0008006004002000 Surface/Horizontal/Wetted Area (sq-ft) 2,5002,0001,5001,0005000 Elevation (feet)52 51 50 Grassed Swale Type III 24-hr 2-year Rainfall=3.36"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 23HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Hydrograph for Pond S1: Grassed Swale Leaching - S1 Time (hours) Inflow (cfs) Storage (cubic-feet) Elevation (feet) Outflow (cfs) Discarded (cfs) Primary (cfs) 0.00 0.00 0 50.00 0.00 0.00 0.00 0.60 0.00 0 50.00 0.00 0.00 0.00 1.20 0.00 0 50.00 0.00 0.00 0.00 1.80 0.00 0 50.00 0.00 0.00 0.00 2.40 0.00 0 50.00 0.00 0.00 0.00 3.00 0.00 0 50.00 0.00 0.00 0.00 3.60 0.00 0 50.00 0.00 0.00 0.00 4.20 0.00 0 50.00 0.00 0.00 0.00 4.80 0.00 0 50.00 0.00 0.00 0.00 5.40 0.00 0 50.00 0.00 0.00 0.00 6.00 0.00 0 50.00 0.00 0.00 0.00 6.60 0.00 0 50.00 0.00 0.00 0.00 7.20 0.00 0 50.00 0.00 0.00 0.00 7.80 0.00 0 50.00 0.00 0.00 0.00 8.40 0.00 0 50.00 0.00 0.00 0.00 9.00 0.00 0 50.00 0.00 0.00 0.00 9.60 0.00 0 50.00 0.00 0.00 0.00 10.20 0.00 0 50.00 0.00 0.00 0.00 10.80 0.00 0 50.00 0.00 0.00 0.00 11.40 0.00 0 50.00 0.00 0.00 0.00 12.00 0.00 0 50.00 0.00 0.00 0.00 12.60 0.04 21 50.03 0.04 0.04 0.00 13.20 0.02 4 50.01 0.02 0.02 0.00 13.80 0.02 4 50.00 0.02 0.02 0.00 14.40 0.02 3 50.00 0.02 0.02 0.00 15.00 0.02 3 50.00 0.02 0.02 0.00 15.60 0.01 3 50.00 0.01 0.01 0.00 16.20 0.01 2 50.00 0.01 0.01 0.00 16.80 0.01 2 50.00 0.01 0.01 0.00 17.40 0.01 2 50.00 0.01 0.01 0.00 18.00 0.01 2 50.00 0.01 0.01 0.00 18.60 0.01 1 50.00 0.01 0.01 0.00 19.20 0.01 1 50.00 0.01 0.01 0.00 19.80 0.01 1 50.00 0.01 0.01 0.00 20.40 0.01 1 50.00 0.01 0.01 0.00 21.00 0.01 1 50.00 0.01 0.01 0.00 21.60 0.01 1 50.00 0.01 0.01 0.00 22.20 0.01 1 50.00 0.01 0.01 0.00 22.80 0.01 1 50.00 0.01 0.01 0.00 23.40 0.01 1 50.00 0.01 0.01 0.00 24.00 0.00 1 50.00 0.00 0.00 0.00 24.60 0.00 0 50.00 0.00 0.00 0.00 25.20 0.00 0 50.00 0.00 0.00 0.00 25.80 0.00 0 50.00 0.00 0.00 0.00 26.40 0.00 0 50.00 0.00 0.00 0.00 27.00 0.00 0 50.00 0.00 0.00 0.00 27.60 0.00 0 50.00 0.00 0.00 0.00 Type III 24-hr 2-year Rainfall=3.36"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 24HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Stage-Discharge for Pond S1: Grassed Swale Leaching - S1 Elevation (feet) Discharge (cfs) Discarded (cfs) Primary (cfs) 50.00 0.00 0.00 0.00 50.02 0.04 0.04 0.00 50.04 0.05 0.05 0.00 50.06 0.05 0.05 0.00 50.08 0.05 0.05 0.00 50.10 0.05 0.05 0.00 50.12 0.05 0.05 0.00 50.14 0.05 0.05 0.00 50.16 0.05 0.05 0.00 50.18 0.05 0.05 0.00 50.20 0.05 0.05 0.00 50.22 0.05 0.05 0.00 50.24 0.05 0.05 0.00 50.26 0.06 0.06 0.00 50.28 0.06 0.06 0.00 50.30 0.06 0.06 0.00 50.32 0.06 0.06 0.00 50.34 0.06 0.06 0.00 50.36 0.06 0.06 0.00 50.38 0.06 0.06 0.00 50.40 0.06 0.06 0.00 50.42 0.06 0.06 0.00 50.44 0.06 0.06 0.00 50.46 0.07 0.07 0.00 50.48 0.07 0.07 0.00 50.50 0.07 0.07 0.00 50.52 0.07 0.07 0.00 50.54 0.07 0.07 0.00 50.56 0.07 0.07 0.00 50.58 0.07 0.07 0.00 50.60 0.07 0.07 0.00 50.62 0.07 0.07 0.00 50.64 0.07 0.07 0.00 50.66 0.08 0.08 0.00 50.68 0.08 0.08 0.00 50.70 0.08 0.08 0.00 50.72 0.08 0.08 0.00 50.74 0.08 0.08 0.00 50.76 0.08 0.08 0.00 50.78 0.08 0.08 0.00 50.80 0.08 0.08 0.00 50.82 0.08 0.08 0.00 50.84 0.08 0.08 0.00 50.86 0.09 0.09 0.00 50.88 0.09 0.09 0.00 50.90 0.09 0.09 0.00 50.92 0.09 0.09 0.00 50.94 0.09 0.09 0.00 50.96 0.09 0.09 0.00 50.98 0.09 0.09 0.00 51.00 0.09 0.09 0.00 51.02 0.09 0.09 0.00 Elevation (feet) Discharge (cfs) Discarded (cfs) Primary (cfs) 51.04 0.10 0.10 0.00 51.06 0.10 0.10 0.00 51.08 0.10 0.10 0.00 51.10 0.10 0.10 0.00 51.12 0.10 0.10 0.00 51.14 0.10 0.10 0.00 51.16 0.10 0.10 0.00 51.18 0.10 0.10 0.00 51.20 0.11 0.11 0.00 51.22 0.11 0.11 0.00 51.24 0.11 0.11 0.00 51.26 0.11 0.11 0.00 51.28 0.11 0.11 0.00 51.30 0.11 0.11 0.00 51.32 0.11 0.11 0.00 51.34 0.11 0.11 0.00 51.36 0.11 0.11 0.00 51.38 0.12 0.12 0.00 51.40 0.12 0.12 0.00 51.42 0.12 0.12 0.00 51.44 0.12 0.12 0.00 51.46 0.12 0.12 0.00 51.48 0.12 0.12 0.00 51.50 0.12 0.12 0.00 51.52 0.12 0.12 0.00 51.54 0.13 0.13 0.00 51.56 0.13 0.13 0.00 51.58 0.13 0.13 0.00 51.60 0.13 0.13 0.00 51.62 0.13 0.13 0.00 51.64 0.13 0.13 0.00 51.66 0.13 0.13 0.00 51.68 0.13 0.13 0.00 51.70 0.14 0.14 0.00 51.72 0.14 0.14 0.00 51.74 0.14 0.14 0.00 51.76 0.14 0.14 0.00 51.78 0.14 0.14 0.00 51.80 0.14 0.14 0.00 51.82 0.14 0.14 0.00 51.84 0.14 0.14 0.00 51.86 0.15 0.15 0.00 51.88 0.15 0.15 0.00 51.90 0.15 0.15 0.00 51.92 0.24 0.15 0.09 51.94 0.40 0.15 0.25 51.96 0.61 0.15 0.46 51.98 0.86 0.15 0.71 52.00 1.14 0.16 0.99 Type III 24-hr 2-year Rainfall=3.36"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 25HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond S1: Grassed Swale Leaching - S1 Elevation (feet) Surface (sq-ft) Wetted (sq-ft) Storage (cubic-feet) 50.00 779 779 0 50.02 785 795 16 50.04 792 811 31 50.06 799 827 47 50.08 805 843 63 50.10 812 860 80 50.12 818 876 96 50.14 825 893 112 50.16 832 909 129 50.18 838 926 146 50.20 845 943 162 50.22 852 959 179 50.24 858 976 196 50.26 865 993 214 50.28 872 1,010 231 50.30 879 1,027 249 50.32 886 1,045 266 50.34 893 1,062 284 50.36 900 1,079 302 50.38 907 1,097 320 50.40 914 1,114 338 50.42 921 1,132 356 50.44 928 1,150 375 50.46 935 1,167 394 50.48 942 1,185 412 50.50 949 1,203 431 50.52 956 1,221 450 50.54 963 1,239 470 50.56 970 1,258 489 50.58 978 1,276 508 50.60 985 1,294 528 50.62 992 1,313 548 50.64 999 1,331 568 50.66 1,007 1,350 588 50.68 1,014 1,368 608 50.70 1,022 1,387 628 50.72 1,029 1,406 649 50.74 1,036 1,425 669 50.76 1,044 1,444 690 50.78 1,051 1,463 711 50.80 1,059 1,482 732 50.82 1,066 1,501 754 50.84 1,074 1,521 775 50.86 1,082 1,540 796 50.88 1,089 1,560 818 50.90 1,097 1,579 840 50.92 1,105 1,599 862 50.94 1,112 1,619 884 50.96 1,120 1,639 907 50.98 1,128 1,658 929 51.00 1,136 1,678 952 51.02 1,143 1,698 974 Elevation (feet) Surface (sq-ft) Wetted (sq-ft) Storage (cubic-feet) 51.04 1,151 1,719 997 51.06 1,159 1,739 1,021 51.08 1,167 1,759 1,044 51.10 1,175 1,780 1,067 51.12 1,183 1,800 1,091 51.14 1,191 1,821 1,114 51.16 1,199 1,841 1,138 51.18 1,207 1,862 1,162 51.20 1,215 1,883 1,187 51.22 1,223 1,904 1,211 51.24 1,231 1,925 1,236 51.26 1,239 1,946 1,260 51.28 1,247 1,967 1,285 51.30 1,256 1,988 1,310 51.32 1,264 2,009 1,335 51.34 1,272 2,031 1,361 51.36 1,280 2,052 1,386 51.38 1,289 2,074 1,412 51.40 1,297 2,095 1,438 51.42 1,305 2,117 1,464 51.44 1,314 2,139 1,490 51.46 1,322 2,161 1,516 51.48 1,330 2,182 1,543 51.50 1,339 2,204 1,570 51.52 1,347 2,227 1,596 51.54 1,356 2,249 1,623 51.56 1,364 2,271 1,651 51.58 1,373 2,293 1,678 51.60 1,382 2,316 1,706 51.62 1,390 2,338 1,733 51.64 1,399 2,361 1,761 51.66 1,407 2,384 1,789 51.68 1,416 2,406 1,818 51.70 1,425 2,429 1,846 51.72 1,434 2,452 1,874 51.74 1,442 2,475 1,903 51.76 1,451 2,498 1,932 51.78 1,460 2,521 1,961 51.80 1,469 2,545 1,991 51.82 1,478 2,568 2,020 51.84 1,487 2,591 2,050 51.86 1,496 2,615 2,080 51.88 1,505 2,638 2,110 51.90 1,514 2,662 2,140 51.92 1,523 2,686 2,170 51.94 1,532 2,710 2,201 51.96 1,541 2,733 2,231 51.98 1,550 2,757 2,262 52.00 1,559 2,781 2,293 Type III 24-hr 2-year Rainfall=3.36"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 26HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Summary for Pond S2: Grassed Swale Leaching - S2 Inflow Area = 0.223 ac, 0.00% Impervious, Inflow Depth = 0.00" for 2-year event Inflow = 0.00 cfs @ 23.83 hrs, Volume= 0.000 af Outflow = 0.00 cfs @ 23.89 hrs, Volume= 0.000 af, Atten= 0%, Lag= 3.9 min Discarded = 0.00 cfs @ 23.89 hrs, Volume= 0.000 af Primary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-27.99 hrs, dt= 0.03 hrs Peak Elev= 38.00' @ 23.89 hrs Surf.Area= 638 sf Storage= 0 cf Plug-Flow detention time= 3.0 min calculated for 0.000 af (100% of inflow) Center-of-Mass det. time= 3.0 min ( 1,313.9 - 1,310.9 ) Volume Invert Avail.Storage Storage Description #1 38.00' 856 cf Grassed Swale (Irregular) Listed below (Recalc) Elevation Surf.Area Perim. Inc.Store Cum.Store Wet.Area (feet) (sq-ft) (feet) (cubic-feet) (cubic-feet) (sq-ft) 38.00 638 222.0 0 0 638 39.00 1,095 235.0 856 856 1,163 Device Routing Invert Outlet Devices #1 Discarded 38.00'2.410 in/hr Exfiltration over Wetted area Phase-In= 0.01' #2 Primary 38.90'10.0' long (Profile 6) Broad-Crested Rectangular Weir Head (feet) 0.49 0.98 1.48 Coef. (English) 3.12 3.41 3.59 Discarded OutFlow Max=0.00 cfs @ 23.89 hrs HW=38.00' (Free Discharge) 1=Exfiltration (Exfiltration Controls 0.00 cfs) Primary OutFlow Max=0.00 cfs @ 0.00 hrs HW=38.00' TW=0.00' (Dynamic Tailwater) 2=Broad-Crested Rectangular Weir ( Controls 0.00 cfs) Type III 24-hr 2-year Rainfall=3.36"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 27HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Pond S2: Grassed Swale Leaching - S2 Inflow Outflow Discarded Primary Hydrograph Time (hours) 26242220181614121086420Flow (cfs)0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0.000 0 0 0 0 0 0 0 0 0 0 Inflow Area=0.223 ac Peak Elev=38.00' Storage=0 cf 0.00 cfs 0.00 cfs 0.00 cfs 0.00 cfs Pond S2: Grassed Swale Leaching - S2 Total Discarded Primary Stage-Discharge Discharge (cfs) 10Elevation (feet)39 38 Exfiltration Broad-Crested Rectangular Weir Type III 24-hr 2-year Rainfall=3.36"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 28HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Pond S2: Grassed Swale Leaching - S2 Surface Wetted Storage Stage-Area-Storage Storage (cubic-feet) 8007006005004003002001000 Surface/Horizontal/Wetted Area (sq-ft) 1,0008006004002000 Elevation (feet)39 38 Grassed Swale Type III 24-hr 2-year Rainfall=3.36"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 29HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Hydrograph for Pond S2: Grassed Swale Leaching - S2 Time (hours) Inflow (cfs) Storage (cubic-feet) Elevation (feet) Outflow (cfs) Discarded (cfs) Primary (cfs) 0.00 0.00 0 38.00 0.00 0.00 0.00 0.60 0.00 0 38.00 0.00 0.00 0.00 1.20 0.00 0 38.00 0.00 0.00 0.00 1.80 0.00 0 38.00 0.00 0.00 0.00 2.40 0.00 0 38.00 0.00 0.00 0.00 3.00 0.00 0 38.00 0.00 0.00 0.00 3.60 0.00 0 38.00 0.00 0.00 0.00 4.20 0.00 0 38.00 0.00 0.00 0.00 4.80 0.00 0 38.00 0.00 0.00 0.00 5.40 0.00 0 38.00 0.00 0.00 0.00 6.00 0.00 0 38.00 0.00 0.00 0.00 6.60 0.00 0 38.00 0.00 0.00 0.00 7.20 0.00 0 38.00 0.00 0.00 0.00 7.80 0.00 0 38.00 0.00 0.00 0.00 8.40 0.00 0 38.00 0.00 0.00 0.00 9.00 0.00 0 38.00 0.00 0.00 0.00 9.60 0.00 0 38.00 0.00 0.00 0.00 10.20 0.00 0 38.00 0.00 0.00 0.00 10.80 0.00 0 38.00 0.00 0.00 0.00 11.40 0.00 0 38.00 0.00 0.00 0.00 12.00 0.00 0 38.00 0.00 0.00 0.00 12.60 0.00 0 38.00 0.00 0.00 0.00 13.20 0.00 0 38.00 0.00 0.00 0.00 13.80 0.00 0 38.00 0.00 0.00 0.00 14.40 0.00 0 38.00 0.00 0.00 0.00 15.00 0.00 0 38.00 0.00 0.00 0.00 15.60 0.00 0 38.00 0.00 0.00 0.00 16.20 0.00 0 38.00 0.00 0.00 0.00 16.80 0.00 0 38.00 0.00 0.00 0.00 17.40 0.00 0 38.00 0.00 0.00 0.00 18.00 0.00 0 38.00 0.00 0.00 0.00 18.60 0.00 0 38.00 0.00 0.00 0.00 19.20 0.00 0 38.00 0.00 0.00 0.00 19.80 0.00 0 38.00 0.00 0.00 0.00 20.40 0.00 0 38.00 0.00 0.00 0.00 21.00 0.00 0 38.00 0.00 0.00 0.00 21.60 0.00 0 38.00 0.00 0.00 0.00 22.20 0.00 0 38.00 0.00 0.00 0.00 22.80 0.00 0 38.00 0.00 0.00 0.00 23.40 0.00 0 38.00 0.00 0.00 0.00 24.00 0.00 0 38.00 0.00 0.00 0.00 24.60 0.00 0 38.00 0.00 0.00 0.00 25.20 0.00 0 38.00 0.00 0.00 0.00 25.80 0.00 0 38.00 0.00 0.00 0.00 26.40 0.00 0 38.00 0.00 0.00 0.00 27.00 0.00 0 38.00 0.00 0.00 0.00 27.60 0.00 0 38.00 0.00 0.00 0.00 Type III 24-hr 2-year Rainfall=3.36"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 30HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Stage-Discharge for Pond S2: Grassed Swale Leaching - S2 Elevation (feet) Discharge (cfs) Discarded (cfs) Primary (cfs) 38.00 0.00 0.00 0.00 38.01 0.04 0.04 0.00 38.02 0.04 0.04 0.00 38.03 0.04 0.04 0.00 38.04 0.04 0.04 0.00 38.05 0.04 0.04 0.00 38.06 0.04 0.04 0.00 38.07 0.04 0.04 0.00 38.08 0.04 0.04 0.00 38.09 0.04 0.04 0.00 38.10 0.04 0.04 0.00 38.11 0.04 0.04 0.00 38.12 0.04 0.04 0.00 38.13 0.04 0.04 0.00 38.14 0.04 0.04 0.00 38.15 0.04 0.04 0.00 38.16 0.04 0.04 0.00 38.17 0.04 0.04 0.00 38.18 0.04 0.04 0.00 38.19 0.04 0.04 0.00 38.20 0.04 0.04 0.00 38.21 0.04 0.04 0.00 38.22 0.04 0.04 0.00 38.23 0.04 0.04 0.00 38.24 0.04 0.04 0.00 38.25 0.04 0.04 0.00 38.26 0.04 0.04 0.00 38.27 0.04 0.04 0.00 38.28 0.04 0.04 0.00 38.29 0.04 0.04 0.00 38.30 0.04 0.04 0.00 38.31 0.04 0.04 0.00 38.32 0.04 0.04 0.00 38.33 0.05 0.05 0.00 38.34 0.05 0.05 0.00 38.35 0.05 0.05 0.00 38.36 0.05 0.05 0.00 38.37 0.05 0.05 0.00 38.38 0.05 0.05 0.00 38.39 0.05 0.05 0.00 38.40 0.05 0.05 0.00 38.41 0.05 0.05 0.00 38.42 0.05 0.05 0.00 38.43 0.05 0.05 0.00 38.44 0.05 0.05 0.00 38.45 0.05 0.05 0.00 38.46 0.05 0.05 0.00 38.47 0.05 0.05 0.00 38.48 0.05 0.05 0.00 38.49 0.05 0.05 0.00 38.50 0.05 0.05 0.00 38.51 0.05 0.05 0.00 Elevation (feet) Discharge (cfs) Discarded (cfs) Primary (cfs) 38.52 0.05 0.05 0.00 38.53 0.05 0.05 0.00 38.54 0.05 0.05 0.00 38.55 0.05 0.05 0.00 38.56 0.05 0.05 0.00 38.57 0.05 0.05 0.00 38.58 0.05 0.05 0.00 38.59 0.05 0.05 0.00 38.60 0.05 0.05 0.00 38.61 0.05 0.05 0.00 38.62 0.05 0.05 0.00 38.63 0.05 0.05 0.00 38.64 0.05 0.05 0.00 38.65 0.05 0.05 0.00 38.66 0.05 0.05 0.00 38.67 0.06 0.06 0.00 38.68 0.06 0.06 0.00 38.69 0.06 0.06 0.00 38.70 0.06 0.06 0.00 38.71 0.06 0.06 0.00 38.72 0.06 0.06 0.00 38.73 0.06 0.06 0.00 38.74 0.06 0.06 0.00 38.75 0.06 0.06 0.00 38.76 0.06 0.06 0.00 38.77 0.06 0.06 0.00 38.78 0.06 0.06 0.00 38.79 0.06 0.06 0.00 38.80 0.06 0.06 0.00 38.81 0.06 0.06 0.00 38.82 0.06 0.06 0.00 38.83 0.06 0.06 0.00 38.84 0.06 0.06 0.00 38.85 0.06 0.06 0.00 38.86 0.06 0.06 0.00 38.87 0.06 0.06 0.00 38.88 0.06 0.06 0.00 38.89 0.06 0.06 0.00 38.90 0.06 0.06 0.00 38.91 0.09 0.06 0.03 38.92 0.15 0.06 0.09 38.93 0.22 0.06 0.16 38.94 0.31 0.06 0.25 38.95 0.41 0.06 0.35 38.96 0.52 0.06 0.46 38.97 0.64 0.06 0.58 38.98 0.77 0.06 0.71 38.99 0.91 0.06 0.84 39.00 1.05 0.06 0.99 Type III 24-hr 2-year Rainfall=3.36"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 31HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond S2: Grassed Swale Leaching - S2 Elevation (feet) Surface (sq-ft) Wetted (sq-ft) Storage (cubic-feet) 38.00 638 638 0 38.01 642 643 6 38.02 646 648 13 38.03 650 653 19 38.04 654 658 26 38.05 658 664 32 38.06 662 669 39 38.07 666 674 46 38.08 670 679 52 38.09 674 684 59 38.10 678 689 66 38.11 682 694 73 38.12 686 699 79 38.13 690 705 86 38.14 695 710 93 38.15 699 715 100 38.16 703 720 107 38.17 707 725 114 38.18 711 730 121 38.19 715 735 129 38.20 720 741 136 38.21 724 746 143 38.22 728 751 150 38.23 732 756 157 38.24 736 761 165 38.25 741 766 172 38.26 745 772 180 38.27 749 777 187 38.28 754 782 195 38.29 758 787 202 38.30 762 792 210 38.31 767 798 217 38.32 771 803 225 38.33 775 808 233 38.34 780 813 241 38.35 784 818 248 38.36 788 824 256 38.37 793 829 264 38.38 797 834 272 38.39 802 839 280 38.40 806 844 288 38.41 811 850 296 38.42 815 855 304 38.43 819 860 313 38.44 824 865 321 38.45 828 871 329 38.46 833 876 337 38.47 838 881 346 38.48 842 886 354 38.49 847 892 363 38.50 851 897 371 38.51 856 902 380 Elevation (feet) Surface (sq-ft) Wetted (sq-ft) Storage (cubic-feet) 38.52 860 907 388 38.53 865 913 397 38.54 870 918 405 38.55 874 923 414 38.56 879 928 423 38.57 883 934 432 38.58 888 939 441 38.59 893 944 449 38.60 897 949 458 38.61 902 955 467 38.62 907 960 476 38.63 912 965 486 38.64 916 971 495 38.65 921 976 504 38.66 926 981 513 38.67 931 987 522 38.68 935 992 532 38.69 940 997 541 38.70 945 1,002 551 38.71 950 1,008 560 38.72 955 1,013 570 38.73 960 1,018 579 38.74 964 1,024 589 38.75 969 1,029 598 38.76 974 1,034 608 38.77 979 1,040 618 38.78 984 1,045 628 38.79 989 1,050 638 38.80 994 1,056 647 38.81 999 1,061 657 38.82 1,004 1,066 667 38.83 1,009 1,072 678 38.84 1,014 1,077 688 38.85 1,019 1,082 698 38.86 1,024 1,088 708 38.87 1,029 1,093 718 38.88 1,034 1,099 729 38.89 1,039 1,104 739 38.90 1,044 1,109 749 38.91 1,049 1,115 760 38.92 1,054 1,120 770 38.93 1,059 1,125 781 38.94 1,064 1,131 792 38.95 1,069 1,136 802 38.96 1,074 1,142 813 38.97 1,080 1,147 824 38.98 1,085 1,152 834 38.99 1,090 1,158 845 39.00 1,095 1,163 856 Type III 24-hr 2-year Rainfall=3.36"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 32HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Summary for Pond S3: Grassed Swale Leaching - S3 Inflow Area = 1.713 ac, 3.89% Impervious, Inflow Depth = 0.01" for 2-year event Inflow = 0.00 cfs @ 22.54 hrs, Volume= 0.001 af Outflow = 0.00 cfs @ 22.57 hrs, Volume= 0.001 af, Atten= 0%, Lag= 1.7 min Discarded = 0.00 cfs @ 22.57 hrs, Volume= 0.001 af Primary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-27.99 hrs, dt= 0.03 hrs Peak Elev= 28.00' @ 22.57 hrs Surf.Area= 2,004 sf Storage= 0 cf Plug-Flow detention time= 3.0 min calculated for 0.001 af (100% of inflow) Center-of-Mass det. time= 3.0 min ( 1,258.5 - 1,255.5 ) Volume Invert Avail.Storage Storage Description #1 28.00' 5,894 cf Grassed Swale (Irregular) Listed below (Recalc) Elevation Surf.Area Perim. Inc.Store Cum.Store Wet.Area (feet) (sq-ft) (feet) (cubic-feet) (cubic-feet) (sq-ft) 28.00 2,004 189.0 0 0 2,004 30.00 4,004 312.0 5,894 5,894 6,933 Device Routing Invert Outlet Devices #1 Discarded 28.00'2.410 in/hr Exfiltration over Wetted area Phase-In= 0.01' #2 Primary 29.90'10.0' long (Profile 6) Broad-Crested Rectangular Weir Head (feet) 0.49 0.98 1.48 Coef. (English) 3.12 3.41 3.59 Discarded OutFlow Max=0.00 cfs @ 22.57 hrs HW=28.00' (Free Discharge) 1=Exfiltration (Exfiltration Controls 0.00 cfs) Primary OutFlow Max=0.00 cfs @ 0.00 hrs HW=28.00' TW=0.00' (Dynamic Tailwater) 2=Broad-Crested Rectangular Weir ( Controls 0.00 cfs) Type III 24-hr 2-year Rainfall=3.36"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 33HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Pond S3: Grassed Swale Leaching - S3 Inflow Outflow Discarded Primary Hydrograph Time (hours) 26242220181614121086420Flow (cfs)0.003 0.002 0.002 0.002 0.002 0.002 0.001 0.001 0.001 0.001 0.001 0.000 0.000 0 Inflow Area=1.713 ac Peak Elev=28.00' Storage=0 cf 0.00 cfs 0.00 cfs 0.00 cfs 0.00 cfs Pond S3: Grassed Swale Leaching - S3 Total Discarded Primary Stage-Discharge Discharge (cfs) 10Elevation (feet)30 29 28 Exfiltration Broad-Crested Rectangular Weir Type III 24-hr 2-year Rainfall=3.36"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 34HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Pond S3: Grassed Swale Leaching - S3 Surface Wetted Storage Stage-Area-Storage Storage (cubic-feet) 5,5005,0004,5004,0003,5003,0002,5002,0001,5001,0005000 Surface/Horizontal/Wetted Area (sq-ft) 6,0005,0004,0003,0002,0001,0000 Elevation (feet)30 29 28 Grassed Swale Type III 24-hr 2-year Rainfall=3.36"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 35HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Hydrograph for Pond S3: Grassed Swale Leaching - S3 Time (hours) Inflow (cfs) Storage (cubic-feet) Elevation (feet) Outflow (cfs) Discarded (cfs) Primary (cfs) 0.00 0.00 0 28.00 0.00 0.00 0.00 0.60 0.00 0 28.00 0.00 0.00 0.00 1.20 0.00 0 28.00 0.00 0.00 0.00 1.80 0.00 0 28.00 0.00 0.00 0.00 2.40 0.00 0 28.00 0.00 0.00 0.00 3.00 0.00 0 28.00 0.00 0.00 0.00 3.60 0.00 0 28.00 0.00 0.00 0.00 4.20 0.00 0 28.00 0.00 0.00 0.00 4.80 0.00 0 28.00 0.00 0.00 0.00 5.40 0.00 0 28.00 0.00 0.00 0.00 6.00 0.00 0 28.00 0.00 0.00 0.00 6.60 0.00 0 28.00 0.00 0.00 0.00 7.20 0.00 0 28.00 0.00 0.00 0.00 7.80 0.00 0 28.00 0.00 0.00 0.00 8.40 0.00 0 28.00 0.00 0.00 0.00 9.00 0.00 0 28.00 0.00 0.00 0.00 9.60 0.00 0 28.00 0.00 0.00 0.00 10.20 0.00 0 28.00 0.00 0.00 0.00 10.80 0.00 0 28.00 0.00 0.00 0.00 11.40 0.00 0 28.00 0.00 0.00 0.00 12.00 0.00 0 28.00 0.00 0.00 0.00 12.60 0.00 0 28.00 0.00 0.00 0.00 13.20 0.00 0 28.00 0.00 0.00 0.00 13.80 0.00 0 28.00 0.00 0.00 0.00 14.40 0.00 0 28.00 0.00 0.00 0.00 15.00 0.00 0 28.00 0.00 0.00 0.00 15.60 0.00 0 28.00 0.00 0.00 0.00 16.20 0.00 0 28.00 0.00 0.00 0.00 16.80 0.00 0 28.00 0.00 0.00 0.00 17.40 0.00 0 28.00 0.00 0.00 0.00 18.00 0.00 0 28.00 0.00 0.00 0.00 18.60 0.00 0 28.00 0.00 0.00 0.00 19.20 0.00 0 28.00 0.00 0.00 0.00 19.80 0.00 0 28.00 0.00 0.00 0.00 20.40 0.00 0 28.00 0.00 0.00 0.00 21.00 0.00 0 28.00 0.00 0.00 0.00 21.60 0.00 0 28.00 0.00 0.00 0.00 22.20 0.00 0 28.00 0.00 0.00 0.00 22.80 0.00 0 28.00 0.00 0.00 0.00 23.40 0.00 0 28.00 0.00 0.00 0.00 24.00 0.00 0 28.00 0.00 0.00 0.00 24.60 0.00 0 28.00 0.00 0.00 0.00 25.20 0.00 0 28.00 0.00 0.00 0.00 25.80 0.00 0 28.00 0.00 0.00 0.00 26.40 0.00 0 28.00 0.00 0.00 0.00 27.00 0.00 0 28.00 0.00 0.00 0.00 27.60 0.00 0 28.00 0.00 0.00 0.00 Type III 24-hr 2-year Rainfall=3.36"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 36HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Stage-Discharge for Pond S3: Grassed Swale Leaching - S3 Elevation (feet) Discharge (cfs) Discarded (cfs) Primary (cfs) 28.00 0.00 0.00 0.00 28.02 0.11 0.11 0.00 28.04 0.12 0.12 0.00 28.06 0.12 0.12 0.00 28.08 0.12 0.12 0.00 28.10 0.12 0.12 0.00 28.12 0.12 0.12 0.00 28.14 0.13 0.13 0.00 28.16 0.13 0.13 0.00 28.18 0.13 0.13 0.00 28.20 0.13 0.13 0.00 28.22 0.14 0.14 0.00 28.24 0.14 0.14 0.00 28.26 0.14 0.14 0.00 28.28 0.14 0.14 0.00 28.30 0.14 0.14 0.00 28.32 0.15 0.15 0.00 28.34 0.15 0.15 0.00 28.36 0.15 0.15 0.00 28.38 0.15 0.15 0.00 28.40 0.16 0.16 0.00 28.42 0.16 0.16 0.00 28.44 0.16 0.16 0.00 28.46 0.16 0.16 0.00 28.48 0.17 0.17 0.00 28.50 0.17 0.17 0.00 28.52 0.17 0.17 0.00 28.54 0.17 0.17 0.00 28.56 0.18 0.18 0.00 28.58 0.18 0.18 0.00 28.60 0.18 0.18 0.00 28.62 0.18 0.18 0.00 28.64 0.19 0.19 0.00 28.66 0.19 0.19 0.00 28.68 0.19 0.19 0.00 28.70 0.19 0.19 0.00 28.72 0.20 0.20 0.00 28.74 0.20 0.20 0.00 28.76 0.20 0.20 0.00 28.78 0.20 0.20 0.00 28.80 0.21 0.21 0.00 28.82 0.21 0.21 0.00 28.84 0.21 0.21 0.00 28.86 0.21 0.21 0.00 28.88 0.22 0.22 0.00 28.90 0.22 0.22 0.00 28.92 0.22 0.22 0.00 28.94 0.22 0.22 0.00 28.96 0.23 0.23 0.00 28.98 0.23 0.23 0.00 29.00 0.23 0.23 0.00 29.02 0.24 0.24 0.00 Elevation (feet) Discharge (cfs) Discarded (cfs) Primary (cfs) 29.04 0.24 0.24 0.00 29.06 0.24 0.24 0.00 29.08 0.24 0.24 0.00 29.10 0.25 0.25 0.00 29.12 0.25 0.25 0.00 29.14 0.25 0.25 0.00 29.16 0.25 0.25 0.00 29.18 0.26 0.26 0.00 29.20 0.26 0.26 0.00 29.22 0.26 0.26 0.00 29.24 0.27 0.27 0.00 29.26 0.27 0.27 0.00 29.28 0.27 0.27 0.00 29.30 0.28 0.28 0.00 29.32 0.28 0.28 0.00 29.34 0.28 0.28 0.00 29.36 0.28 0.28 0.00 29.38 0.29 0.29 0.00 29.40 0.29 0.29 0.00 29.42 0.29 0.29 0.00 29.44 0.30 0.30 0.00 29.46 0.30 0.30 0.00 29.48 0.30 0.30 0.00 29.50 0.31 0.31 0.00 29.52 0.31 0.31 0.00 29.54 0.31 0.31 0.00 29.56 0.31 0.31 0.00 29.58 0.32 0.32 0.00 29.60 0.32 0.32 0.00 29.62 0.32 0.32 0.00 29.64 0.33 0.33 0.00 29.66 0.33 0.33 0.00 29.68 0.33 0.33 0.00 29.70 0.34 0.34 0.00 29.72 0.34 0.34 0.00 29.74 0.34 0.34 0.00 29.76 0.35 0.35 0.00 29.78 0.35 0.35 0.00 29.80 0.35 0.35 0.00 29.82 0.36 0.36 0.00 29.84 0.36 0.36 0.00 29.86 0.36 0.36 0.00 29.88 0.37 0.37 0.00 29.90 0.37 0.37 0.00 29.92 0.46 0.37 0.09 29.94 0.63 0.38 0.25 29.96 0.84 0.38 0.46 29.98 1.09 0.38 0.71 30.00 1.37 0.39 0.99 Type III 24-hr 2-year Rainfall=3.36"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 37HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond S3: Grassed Swale Leaching - S3 Elevation (feet) Surface (sq-ft) Wetted (sq-ft) Storage (cubic-feet) 28.00 2,004 2,004 0 28.02 2,021 2,041 40 28.04 2,037 2,079 81 28.06 2,054 2,117 122 28.08 2,071 2,155 163 28.10 2,088 2,193 205 28.12 2,105 2,232 246 28.14 2,122 2,270 289 28.16 2,139 2,309 331 28.18 2,156 2,349 374 28.20 2,173 2,388 418 28.22 2,190 2,428 461 28.24 2,208 2,468 505 28.26 2,225 2,508 550 28.28 2,243 2,548 594 28.30 2,260 2,589 639 28.32 2,278 2,630 685 28.34 2,296 2,671 730 28.36 2,313 2,713 776 28.38 2,331 2,754 823 28.40 2,349 2,796 870 28.42 2,367 2,838 917 28.44 2,385 2,881 964 28.46 2,403 2,923 1,012 28.48 2,421 2,966 1,061 28.50 2,440 3,009 1,109 28.52 2,458 3,053 1,158 28.54 2,476 3,096 1,207 28.56 2,495 3,140 1,257 28.58 2,513 3,184 1,307 28.60 2,532 3,229 1,358 28.62 2,551 3,273 1,409 28.64 2,569 3,318 1,460 28.66 2,588 3,363 1,511 28.68 2,607 3,408 1,563 28.70 2,626 3,454 1,616 28.72 2,645 3,500 1,668 28.74 2,664 3,546 1,721 28.76 2,683 3,592 1,775 28.78 2,702 3,639 1,829 28.80 2,722 3,685 1,883 28.82 2,741 3,732 1,938 28.84 2,761 3,780 1,993 28.86 2,780 3,827 2,048 28.88 2,800 3,875 2,104 28.90 2,819 3,923 2,160 28.92 2,839 3,971 2,217 28.94 2,859 4,019 2,274 28.96 2,878 4,068 2,331 28.98 2,898 4,117 2,389 29.00 2,918 4,166 2,447 29.02 2,938 4,216 2,505 Elevation (feet) Surface (sq-ft) Wetted (sq-ft) Storage (cubic-feet) 29.04 2,958 4,265 2,564 29.06 2,979 4,315 2,624 29.08 2,999 4,365 2,684 29.10 3,019 4,416 2,744 29.12 3,040 4,466 2,804 29.14 3,060 4,517 2,865 29.16 3,081 4,568 2,927 29.18 3,101 4,620 2,989 29.20 3,122 4,671 3,051 29.22 3,142 4,723 3,113 29.24 3,163 4,775 3,176 29.26 3,184 4,827 3,240 29.28 3,205 4,880 3,304 29.30 3,226 4,933 3,368 29.32 3,247 4,986 3,433 29.34 3,268 5,039 3,498 29.36 3,289 5,093 3,564 29.38 3,311 5,146 3,630 29.40 3,332 5,200 3,696 29.42 3,353 5,255 3,763 29.44 3,375 5,309 3,830 29.46 3,396 5,364 3,898 29.48 3,418 5,419 3,966 29.50 3,440 5,474 4,035 29.52 3,461 5,530 4,104 29.54 3,483 5,585 4,173 29.56 3,505 5,641 4,243 29.58 3,527 5,697 4,313 29.60 3,549 5,754 4,384 29.62 3,571 5,811 4,455 29.64 3,593 5,867 4,527 29.66 3,616 5,925 4,599 29.68 3,638 5,982 4,672 29.70 3,660 6,040 4,745 29.72 3,683 6,098 4,818 29.74 3,705 6,156 4,892 29.76 3,728 6,214 4,966 29.78 3,750 6,273 5,041 29.80 3,773 6,331 5,116 29.82 3,796 6,391 5,192 29.84 3,819 6,450 5,268 29.86 3,842 6,509 5,345 29.88 3,865 6,569 5,422 29.90 3,888 6,629 5,499 29.92 3,911 6,690 5,577 29.94 3,934 6,750 5,656 29.96 3,957 6,811 5,735 29.98 3,981 6,872 5,814 30.00 4,004 6,933 5,894 Type III 24-hr 2-year Rainfall=3.36"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 38HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Summary for Pond S4: Grassed Swale Leaching - S4 Inflow Area = 0.065 ac, 27.81% Impervious, Inflow Depth = 0.30" for 2-year event Inflow = 0.01 cfs @ 12.30 hrs, Volume= 0.002 af Outflow = 0.01 cfs @ 12.35 hrs, Volume= 0.002 af, Atten= 2%, Lag= 3.0 min Discarded = 0.01 cfs @ 12.35 hrs, Volume= 0.002 af Primary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-27.99 hrs, dt= 0.03 hrs Peak Elev= 56.01' @ 12.35 hrs Surf.Area= 249 sf Storage= 2 cf Plug-Flow detention time= 3.0 min calculated for 0.002 af (100% of inflow) Center-of-Mass det. time= 3.0 min ( 948.6 - 945.6 ) Volume Invert Avail.Storage Storage Description #1 56.00' 342 cf Grassed Swale (Irregular) Listed below (Recalc) Elevation Surf.Area Perim. Inc.Store Cum.Store Wet.Area (feet) (sq-ft) (feet) (cubic-feet) (cubic-feet) (sq-ft) 56.00 248 92.0 0 0 248 57.00 446 105.0 342 342 474 Device Routing Invert Outlet Devices #1 Discarded 56.00'2.410 in/hr Exfiltration over Wetted area Phase-In= 0.01' #2 Primary 56.90'10.0' long (Profile 6) Broad-Crested Rectangular Weir Head (feet) 0.49 0.98 1.48 Coef. (English) 3.12 3.41 3.59 Discarded OutFlow Max=0.01 cfs @ 12.35 hrs HW=56.01' (Free Discharge) 1=Exfiltration (Exfiltration Controls 0.01 cfs) Primary OutFlow Max=0.00 cfs @ 0.00 hrs HW=56.00' TW=0.00' (Dynamic Tailwater) 2=Broad-Crested Rectangular Weir ( Controls 0.00 cfs) Type III 24-hr 2-year Rainfall=3.36"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 39HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Pond S4: Grassed Swale Leaching - S4 Inflow Outflow Discarded Primary Hydrograph Time (hours) 26242220181614121086420Flow (cfs)0.009 0.009 0.008 0.008 0.007 0.007 0.006 0.006 0.005 0.005 0.004 0.004 0.003 0.003 0.002 0.002 0.001 0.001 0.000 0 Inflow Area=0.065 ac Peak Elev=56.01' Storage=2 cf 0.01 cfs 0.01 cfs 0.01 cfs 0.00 cfs Pond S4: Grassed Swale Leaching - S4 Total Discarded Primary Stage-Discharge Discharge (cfs) 10Elevation (feet)57 56 Exfiltration Broad-Crested Rectangular Weir Type III 24-hr 2-year Rainfall=3.36"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 40HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Pond S4: Grassed Swale Leaching - S4 Surface Wetted Storage Stage-Area-Storage Storage (cubic-feet) 300250200150100500 Surface/Horizontal/Wetted Area (sq-ft) 450400350300250200150100500 Elevation (feet)57 56 Grassed Swale Type III 24-hr 2-year Rainfall=3.36"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 41HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Hydrograph for Pond S4: Grassed Swale Leaching - S4 Time (hours) Inflow (cfs) Storage (cubic-feet) Elevation (feet) Outflow (cfs) Discarded (cfs) Primary (cfs) 0.00 0.00 0 56.00 0.00 0.00 0.00 0.60 0.00 0 56.00 0.00 0.00 0.00 1.20 0.00 0 56.00 0.00 0.00 0.00 1.80 0.00 0 56.00 0.00 0.00 0.00 2.40 0.00 0 56.00 0.00 0.00 0.00 3.00 0.00 0 56.00 0.00 0.00 0.00 3.60 0.00 0 56.00 0.00 0.00 0.00 4.20 0.00 0 56.00 0.00 0.00 0.00 4.80 0.00 0 56.00 0.00 0.00 0.00 5.40 0.00 0 56.00 0.00 0.00 0.00 6.00 0.00 0 56.00 0.00 0.00 0.00 6.60 0.00 0 56.00 0.00 0.00 0.00 7.20 0.00 0 56.00 0.00 0.00 0.00 7.80 0.00 0 56.00 0.00 0.00 0.00 8.40 0.00 0 56.00 0.00 0.00 0.00 9.00 0.00 0 56.00 0.00 0.00 0.00 9.60 0.00 0 56.00 0.00 0.00 0.00 10.20 0.00 0 56.00 0.00 0.00 0.00 10.80 0.00 0 56.00 0.00 0.00 0.00 11.40 0.00 0 56.00 0.00 0.00 0.00 12.00 0.00 0 56.00 0.00 0.00 0.00 12.60 0.00 1 56.00 0.01 0.01 0.00 13.20 0.00 1 56.00 0.00 0.00 0.00 13.80 0.00 0 56.00 0.00 0.00 0.00 14.40 0.00 0 56.00 0.00 0.00 0.00 15.00 0.00 0 56.00 0.00 0.00 0.00 15.60 0.00 0 56.00 0.00 0.00 0.00 16.20 0.00 0 56.00 0.00 0.00 0.00 16.80 0.00 0 56.00 0.00 0.00 0.00 17.40 0.00 0 56.00 0.00 0.00 0.00 18.00 0.00 0 56.00 0.00 0.00 0.00 18.60 0.00 0 56.00 0.00 0.00 0.00 19.20 0.00 0 56.00 0.00 0.00 0.00 19.80 0.00 0 56.00 0.00 0.00 0.00 20.40 0.00 0 56.00 0.00 0.00 0.00 21.00 0.00 0 56.00 0.00 0.00 0.00 21.60 0.00 0 56.00 0.00 0.00 0.00 22.20 0.00 0 56.00 0.00 0.00 0.00 22.80 0.00 0 56.00 0.00 0.00 0.00 23.40 0.00 0 56.00 0.00 0.00 0.00 24.00 0.00 0 56.00 0.00 0.00 0.00 24.60 0.00 0 56.00 0.00 0.00 0.00 25.20 0.00 0 56.00 0.00 0.00 0.00 25.80 0.00 0 56.00 0.00 0.00 0.00 26.40 0.00 0 56.00 0.00 0.00 0.00 27.00 0.00 0 56.00 0.00 0.00 0.00 27.60 0.00 0 56.00 0.00 0.00 0.00 Type III 24-hr 2-year Rainfall=3.36"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 42HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Stage-Discharge for Pond S4: Grassed Swale Leaching - S4 Elevation (feet) Discharge (cfs) Discarded (cfs) Primary (cfs) 56.00 0.00 0.00 0.00 56.01 0.01 0.01 0.00 56.02 0.01 0.01 0.00 56.03 0.01 0.01 0.00 56.04 0.01 0.01 0.00 56.05 0.01 0.01 0.00 56.06 0.01 0.01 0.00 56.07 0.01 0.01 0.00 56.08 0.01 0.01 0.00 56.09 0.01 0.01 0.00 56.10 0.02 0.02 0.00 56.11 0.02 0.02 0.00 56.12 0.02 0.02 0.00 56.13 0.02 0.02 0.00 56.14 0.02 0.02 0.00 56.15 0.02 0.02 0.00 56.16 0.02 0.02 0.00 56.17 0.02 0.02 0.00 56.18 0.02 0.02 0.00 56.19 0.02 0.02 0.00 56.20 0.02 0.02 0.00 56.21 0.02 0.02 0.00 56.22 0.02 0.02 0.00 56.23 0.02 0.02 0.00 56.24 0.02 0.02 0.00 56.25 0.02 0.02 0.00 56.26 0.02 0.02 0.00 56.27 0.02 0.02 0.00 56.28 0.02 0.02 0.00 56.29 0.02 0.02 0.00 56.30 0.02 0.02 0.00 56.31 0.02 0.02 0.00 56.32 0.02 0.02 0.00 56.33 0.02 0.02 0.00 56.34 0.02 0.02 0.00 56.35 0.02 0.02 0.00 56.36 0.02 0.02 0.00 56.37 0.02 0.02 0.00 56.38 0.02 0.02 0.00 56.39 0.02 0.02 0.00 56.40 0.02 0.02 0.00 56.41 0.02 0.02 0.00 56.42 0.02 0.02 0.00 56.43 0.02 0.02 0.00 56.44 0.02 0.02 0.00 56.45 0.02 0.02 0.00 56.46 0.02 0.02 0.00 56.47 0.02 0.02 0.00 56.48 0.02 0.02 0.00 56.49 0.02 0.02 0.00 56.50 0.02 0.02 0.00 56.51 0.02 0.02 0.00 Elevation (feet) Discharge (cfs) Discarded (cfs) Primary (cfs) 56.52 0.02 0.02 0.00 56.53 0.02 0.02 0.00 56.54 0.02 0.02 0.00 56.55 0.02 0.02 0.00 56.56 0.02 0.02 0.00 56.57 0.02 0.02 0.00 56.58 0.02 0.02 0.00 56.59 0.02 0.02 0.00 56.60 0.02 0.02 0.00 56.61 0.02 0.02 0.00 56.62 0.02 0.02 0.00 56.63 0.02 0.02 0.00 56.64 0.02 0.02 0.00 56.65 0.02 0.02 0.00 56.66 0.02 0.02 0.00 56.67 0.02 0.02 0.00 56.68 0.02 0.02 0.00 56.69 0.02 0.02 0.00 56.70 0.02 0.02 0.00 56.71 0.02 0.02 0.00 56.72 0.02 0.02 0.00 56.73 0.02 0.02 0.00 56.74 0.02 0.02 0.00 56.75 0.02 0.02 0.00 56.76 0.02 0.02 0.00 56.77 0.02 0.02 0.00 56.78 0.02 0.02 0.00 56.79 0.02 0.02 0.00 56.80 0.02 0.02 0.00 56.81 0.02 0.02 0.00 56.82 0.02 0.02 0.00 56.83 0.02 0.02 0.00 56.84 0.02 0.02 0.00 56.85 0.02 0.02 0.00 56.86 0.02 0.02 0.00 56.87 0.02 0.02 0.00 56.88 0.02 0.02 0.00 56.89 0.02 0.02 0.00 56.90 0.03 0.03 0.00 56.91 0.06 0.03 0.03 56.92 0.11 0.03 0.09 56.93 0.19 0.03 0.16 56.94 0.28 0.03 0.25 56.95 0.37 0.03 0.35 56.96 0.48 0.03 0.46 56.97 0.60 0.03 0.58 56.98 0.73 0.03 0.71 56.99 0.87 0.03 0.84 57.00 1.01 0.03 0.99 Type III 24-hr 2-year Rainfall=3.36"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 43HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond S4: Grassed Swale Leaching - S4 Elevation (feet) Surface (sq-ft) Wetted (sq-ft) Storage (cubic-feet) 56.00 248 248 0 56.01 250 250 2 56.02 251 252 5 56.03 253 254 8 56.04 255 256 10 56.05 257 259 13 56.06 258 261 15 56.07 260 263 18 56.08 262 265 20 56.09 263 267 23 56.10 265 269 26 56.11 267 271 28 56.12 269 274 31 56.13 270 276 34 56.14 272 278 36 56.15 274 280 39 56.16 276 282 42 56.17 278 284 45 56.18 279 287 47 56.19 281 289 50 56.20 283 291 53 56.21 285 293 56 56.22 287 295 59 56.23 288 297 62 56.24 290 300 65 56.25 292 302 67 56.26 294 304 70 56.27 296 306 73 56.28 298 308 76 56.29 299 311 79 56.30 301 313 82 56.31 303 315 85 56.32 305 317 88 56.33 307 319 91 56.34 309 322 94 56.35 311 324 98 56.36 313 326 101 56.37 315 328 104 56.38 316 330 107 56.39 318 333 110 56.40 320 335 113 56.41 322 337 117 56.42 324 339 120 56.43 326 342 123 56.44 328 344 126 56.45 330 346 130 56.46 332 348 133 56.47 334 351 136 56.48 336 353 140 56.49 338 355 143 56.50 340 357 146 56.51 342 360 150 Elevation (feet) Surface (sq-ft) Wetted (sq-ft) Storage (cubic-feet) 56.52 344 362 153 56.53 346 364 157 56.54 348 367 160 56.55 350 369 164 56.56 352 371 167 56.57 354 373 171 56.58 356 376 174 56.59 358 378 178 56.60 360 380 181 56.61 362 383 185 56.62 364 385 189 56.63 366 387 192 56.64 368 389 196 56.65 370 392 200 56.66 372 394 203 56.67 374 396 207 56.68 376 399 211 56.69 378 401 215 56.70 381 403 218 56.71 383 406 222 56.72 385 408 226 56.73 387 410 230 56.74 389 413 234 56.75 391 415 238 56.76 393 417 242 56.77 395 420 245 56.78 397 422 249 56.79 400 424 253 56.80 402 427 257 56.81 404 429 261 56.82 406 431 266 56.83 408 434 270 56.84 410 436 274 56.85 413 438 278 56.86 415 441 282 56.87 417 443 286 56.88 419 446 290 56.89 421 448 294 56.90 424 450 299 56.91 426 453 303 56.92 428 455 307 56.93 430 458 312 56.94 432 460 316 56.95 435 462 320 56.96 437 465 325 56.97 439 467 329 56.98 441 470 333 56.99 444 472 338 57.00 446 474 342 Type III 24-hr 2-year Rainfall=3.36"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 44HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Summary for Pond S5: Grassed Swale Leaching - S5 Inflow Area = 0.521 ac, 5.97% Impervious, Inflow Depth = 0.02" for 2-year event Inflow = 0.00 cfs @ 17.07 hrs, Volume= 0.001 af Outflow = 0.00 cfs @ 17.11 hrs, Volume= 0.001 af, Atten= 0%, Lag= 2.4 min Discarded = 0.00 cfs @ 17.11 hrs, Volume= 0.001 af Primary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-27.99 hrs, dt= 0.03 hrs Peak Elev= 48.00' @ 17.11 hrs Surf.Area= 721 sf Storage= 0 cf Plug-Flow detention time= 3.0 min calculated for 0.001 af (100% of inflow) Center-of-Mass det. time= 3.0 min ( 1,166.0 - 1,163.0 ) Volume Invert Avail.Storage Storage Description #1 48.00' 849 cf Grassed Swale (Irregular) Listed below (Recalc) Elevation Surf.Area Perim. Inc.Store Cum.Store Wet.Area (feet) (sq-ft) (feet) (cubic-feet) (cubic-feet) (sq-ft) 48.00 721 125.0 0 0 721 49.00 983 137.0 849 849 1,003 Device Routing Invert Outlet Devices #1 Discarded 48.00'2.410 in/hr Exfiltration over Wetted area Phase-In= 0.01' #2 Primary 48.90'10.0' long (Profile 6) Broad-Crested Rectangular Weir Head (feet) 0.49 0.98 1.48 Coef. (English) 3.12 3.41 3.59 Discarded OutFlow Max=0.00 cfs @ 17.11 hrs HW=48.00' (Free Discharge) 1=Exfiltration (Exfiltration Controls 0.00 cfs) Primary OutFlow Max=0.00 cfs @ 0.00 hrs HW=48.00' TW=0.00' (Dynamic Tailwater) 2=Broad-Crested Rectangular Weir ( Controls 0.00 cfs) Type III 24-hr 2-year Rainfall=3.36"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 45HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Pond S5: Grassed Swale Leaching - S5 Inflow Outflow Discarded Primary Hydrograph Time (hours) 26242220181614121086420Flow (cfs)0.002 0.002 0.002 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.001 0.000 0.000 0.000 0.000 0 0 Inflow Area=0.521 ac Peak Elev=48.00' Storage=0 cf 0.00 cfs 0.00 cfs 0.00 cfs 0.00 cfs Pond S5: Grassed Swale Leaching - S5 Total Discarded Primary Stage-Discharge Discharge (cfs) 10Elevation (feet)49 48 Exfiltration Broad-Crested Rectangular Weir Type III 24-hr 2-year Rainfall=3.36"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 46HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Pond S5: Grassed Swale Leaching - S5 Surface Wetted Storage Stage-Area-Storage Storage (cubic-feet) 8007006005004003002001000 Surface/Horizontal/Wetted Area (sq-ft) 1,0009008007006005004003002001000 Elevation (feet)49 48 Grassed Swale Type III 24-hr 2-year Rainfall=3.36"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 47HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Hydrograph for Pond S5: Grassed Swale Leaching - S5 Time (hours) Inflow (cfs) Storage (cubic-feet) Elevation (feet) Outflow (cfs) Discarded (cfs) Primary (cfs) 0.00 0.00 0 48.00 0.00 0.00 0.00 0.60 0.00 0 48.00 0.00 0.00 0.00 1.20 0.00 0 48.00 0.00 0.00 0.00 1.80 0.00 0 48.00 0.00 0.00 0.00 2.40 0.00 0 48.00 0.00 0.00 0.00 3.00 0.00 0 48.00 0.00 0.00 0.00 3.60 0.00 0 48.00 0.00 0.00 0.00 4.20 0.00 0 48.00 0.00 0.00 0.00 4.80 0.00 0 48.00 0.00 0.00 0.00 5.40 0.00 0 48.00 0.00 0.00 0.00 6.00 0.00 0 48.00 0.00 0.00 0.00 6.60 0.00 0 48.00 0.00 0.00 0.00 7.20 0.00 0 48.00 0.00 0.00 0.00 7.80 0.00 0 48.00 0.00 0.00 0.00 8.40 0.00 0 48.00 0.00 0.00 0.00 9.00 0.00 0 48.00 0.00 0.00 0.00 9.60 0.00 0 48.00 0.00 0.00 0.00 10.20 0.00 0 48.00 0.00 0.00 0.00 10.80 0.00 0 48.00 0.00 0.00 0.00 11.40 0.00 0 48.00 0.00 0.00 0.00 12.00 0.00 0 48.00 0.00 0.00 0.00 12.60 0.00 0 48.00 0.00 0.00 0.00 13.20 0.00 0 48.00 0.00 0.00 0.00 13.80 0.00 0 48.00 0.00 0.00 0.00 14.40 0.00 0 48.00 0.00 0.00 0.00 15.00 0.00 0 48.00 0.00 0.00 0.00 15.60 0.00 0 48.00 0.00 0.00 0.00 16.20 0.00 0 48.00 0.00 0.00 0.00 16.80 0.00 0 48.00 0.00 0.00 0.00 17.40 0.00 0 48.00 0.00 0.00 0.00 18.00 0.00 0 48.00 0.00 0.00 0.00 18.60 0.00 0 48.00 0.00 0.00 0.00 19.20 0.00 0 48.00 0.00 0.00 0.00 19.80 0.00 0 48.00 0.00 0.00 0.00 20.40 0.00 0 48.00 0.00 0.00 0.00 21.00 0.00 0 48.00 0.00 0.00 0.00 21.60 0.00 0 48.00 0.00 0.00 0.00 22.20 0.00 0 48.00 0.00 0.00 0.00 22.80 0.00 0 48.00 0.00 0.00 0.00 23.40 0.00 0 48.00 0.00 0.00 0.00 24.00 0.00 0 48.00 0.00 0.00 0.00 24.60 0.00 0 48.00 0.00 0.00 0.00 25.20 0.00 0 48.00 0.00 0.00 0.00 25.80 0.00 0 48.00 0.00 0.00 0.00 26.40 0.00 0 48.00 0.00 0.00 0.00 27.00 0.00 0 48.00 0.00 0.00 0.00 27.60 0.00 0 48.00 0.00 0.00 0.00 Type III 24-hr 2-year Rainfall=3.36"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 48HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Stage-Discharge for Pond S5: Grassed Swale Leaching - S5 Elevation (feet) Discharge (cfs) Discarded (cfs) Primary (cfs) 48.00 0.00 0.00 0.00 48.01 0.04 0.04 0.00 48.02 0.04 0.04 0.00 48.03 0.04 0.04 0.00 48.04 0.04 0.04 0.00 48.05 0.04 0.04 0.00 48.06 0.04 0.04 0.00 48.07 0.04 0.04 0.00 48.08 0.04 0.04 0.00 48.09 0.04 0.04 0.00 48.10 0.04 0.04 0.00 48.11 0.04 0.04 0.00 48.12 0.04 0.04 0.00 48.13 0.04 0.04 0.00 48.14 0.04 0.04 0.00 48.15 0.04 0.04 0.00 48.16 0.04 0.04 0.00 48.17 0.04 0.04 0.00 48.18 0.04 0.04 0.00 48.19 0.04 0.04 0.00 48.20 0.04 0.04 0.00 48.21 0.04 0.04 0.00 48.22 0.04 0.04 0.00 48.23 0.04 0.04 0.00 48.24 0.04 0.04 0.00 48.25 0.04 0.04 0.00 48.26 0.04 0.04 0.00 48.27 0.04 0.04 0.00 48.28 0.04 0.04 0.00 48.29 0.04 0.04 0.00 48.30 0.04 0.04 0.00 48.31 0.04 0.04 0.00 48.32 0.05 0.05 0.00 48.33 0.05 0.05 0.00 48.34 0.05 0.05 0.00 48.35 0.05 0.05 0.00 48.36 0.05 0.05 0.00 48.37 0.05 0.05 0.00 48.38 0.05 0.05 0.00 48.39 0.05 0.05 0.00 48.40 0.05 0.05 0.00 48.41 0.05 0.05 0.00 48.42 0.05 0.05 0.00 48.43 0.05 0.05 0.00 48.44 0.05 0.05 0.00 48.45 0.05 0.05 0.00 48.46 0.05 0.05 0.00 48.47 0.05 0.05 0.00 48.48 0.05 0.05 0.00 48.49 0.05 0.05 0.00 48.50 0.05 0.05 0.00 48.51 0.05 0.05 0.00 Elevation (feet) Discharge (cfs) Discarded (cfs) Primary (cfs) 48.52 0.05 0.05 0.00 48.53 0.05 0.05 0.00 48.54 0.05 0.05 0.00 48.55 0.05 0.05 0.00 48.56 0.05 0.05 0.00 48.57 0.05 0.05 0.00 48.58 0.05 0.05 0.00 48.59 0.05 0.05 0.00 48.60 0.05 0.05 0.00 48.61 0.05 0.05 0.00 48.62 0.05 0.05 0.00 48.63 0.05 0.05 0.00 48.64 0.05 0.05 0.00 48.65 0.05 0.05 0.00 48.66 0.05 0.05 0.00 48.67 0.05 0.05 0.00 48.68 0.05 0.05 0.00 48.69 0.05 0.05 0.00 48.70 0.05 0.05 0.00 48.71 0.05 0.05 0.00 48.72 0.05 0.05 0.00 48.73 0.05 0.05 0.00 48.74 0.05 0.05 0.00 48.75 0.05 0.05 0.00 48.76 0.05 0.05 0.00 48.77 0.05 0.05 0.00 48.78 0.05 0.05 0.00 48.79 0.05 0.05 0.00 48.80 0.05 0.05 0.00 48.81 0.05 0.05 0.00 48.82 0.05 0.05 0.00 48.83 0.05 0.05 0.00 48.84 0.05 0.05 0.00 48.85 0.05 0.05 0.00 48.86 0.05 0.05 0.00 48.87 0.05 0.05 0.00 48.88 0.05 0.05 0.00 48.89 0.05 0.05 0.00 48.90 0.05 0.05 0.00 48.91 0.09 0.05 0.03 48.92 0.14 0.05 0.09 48.93 0.22 0.05 0.16 48.94 0.30 0.05 0.25 48.95 0.40 0.06 0.35 48.96 0.51 0.06 0.46 48.97 0.63 0.06 0.58 48.98 0.76 0.06 0.71 48.99 0.90 0.06 0.84 49.00 1.04 0.06 0.99 Type III 24-hr 2-year Rainfall=3.36"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 49HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond S5: Grassed Swale Leaching - S5 Elevation (feet) Surface (sq-ft) Wetted (sq-ft) Storage (cubic-feet) 48.00 721 721 0 48.01 723 724 7 48.02 726 726 14 48.03 728 729 22 48.04 731 732 29 48.05 733 735 36 48.06 736 737 44 48.07 738 740 51 48.08 740 743 58 48.09 743 745 66 48.10 745 748 73 48.11 748 751 81 48.12 750 754 88 48.13 753 756 96 48.14 755 759 103 48.15 758 762 111 48.16 760 764 118 48.17 763 767 126 48.18 765 770 134 48.19 768 773 141 48.20 770 775 149 48.21 773 778 157 48.22 775 781 165 48.23 778 784 172 48.24 780 786 180 48.25 783 789 188 48.26 785 792 196 48.27 788 795 204 48.28 790 797 212 48.29 793 800 219 48.30 795 803 227 48.31 798 806 235 48.32 800 809 243 48.33 803 811 251 48.34 806 814 259 48.35 808 817 267 48.36 811 820 276 48.37 813 822 284 48.38 816 825 292 48.39 818 828 300 48.40 821 831 308 48.41 824 834 316 48.42 826 836 325 48.43 829 839 333 48.44 831 842 341 48.45 834 845 350 48.46 836 848 358 48.47 839 851 366 48.48 842 853 375 48.49 844 856 383 48.50 847 859 392 48.51 850 862 400 Elevation (feet) Surface (sq-ft) Wetted (sq-ft) Storage (cubic-feet) 48.52 852 865 409 48.53 855 867 417 48.54 857 870 426 48.55 860 873 434 48.56 863 876 443 48.57 865 879 451 48.58 868 882 460 48.59 871 884 469 48.60 873 887 478 48.61 876 890 486 48.62 879 893 495 48.63 881 896 504 48.64 884 899 513 48.65 887 902 522 48.66 889 904 530 48.67 892 907 539 48.68 895 910 548 48.69 897 913 557 48.70 900 916 566 48.71 903 919 575 48.72 906 922 584 48.73 908 925 593 48.74 911 927 602 48.75 914 930 612 48.76 916 933 621 48.77 919 936 630 48.78 922 939 639 48.79 925 942 648 48.80 927 945 658 48.81 930 948 667 48.82 933 951 676 48.83 936 954 686 48.84 938 956 695 48.85 941 959 704 48.86 944 962 714 48.87 947 965 723 48.88 949 968 733 48.89 952 971 742 48.90 955 974 752 48.91 958 977 761 48.92 961 980 771 48.93 963 983 781 48.94 966 986 790 48.95 969 989 800 48.96 972 992 810 48.97 975 995 819 48.98 977 998 829 48.99 980 1,000 839 49.00 983 1,003 849 Type III 24-hr 10-year Rainfall=4.88"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 50HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 1S: Post-Development Watershed - S1 Runoff = 0.37 cfs @ 12.16 hrs, Volume= 0.040 af, Depth= 0.86" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-27.99 hrs, dt= 0.03 hrs Type III 24-hr 10-year Rainfall=4.88" Area (sf) CN Description 5,977 98 Paved parking, HSG A 18,300 39 >75% Grass cover, Good, HSG A 24,277 54 Weighted Average 18,300 75.38% Pervious Area 5,977 24.62% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 8.0 50 0.0200 0.10 Sheet Flow, Grass: Dense n= 0.240 P2= 3.36" 1.5 110 0.0300 1.21 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 9.5 160 Total Subcatchment 1S: Post-Development Watershed - S1 Runoff Hydrograph Time (hours) 26242220181614121086420Flow (cfs)0.4 0.38 0.36 0.34 0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 Type III 24-hr 10-year Rainfall=4.88" Runoff Area=24,277 sf Runoff Volume=0.040 af Runoff Depth=0.86" Flow Length=160' Tc=9.5 min CN=54 0.37 cfs Type III 24-hr 10-year Rainfall=4.88"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 51HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Hydrograph for Subcatchment 1S: Post-Development Watershed - S1 Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 0.00 0.00 0.00 0.00 0.30 0.01 0.00 0.00 0.60 0.03 0.00 0.00 0.90 0.04 0.00 0.00 1.20 0.06 0.00 0.00 1.50 0.07 0.00 0.00 1.80 0.09 0.00 0.00 2.10 0.10 0.00 0.00 2.40 0.12 0.00 0.00 2.70 0.13 0.00 0.00 3.00 0.15 0.00 0.00 3.30 0.17 0.00 0.00 3.60 0.19 0.00 0.00 3.90 0.20 0.00 0.00 4.20 0.22 0.00 0.00 4.50 0.24 0.00 0.00 4.80 0.26 0.00 0.00 5.10 0.28 0.00 0.00 5.40 0.31 0.00 0.00 5.70 0.33 0.00 0.00 6.00 0.35 0.00 0.00 6.30 0.38 0.00 0.00 6.60 0.40 0.00 0.00 6.90 0.43 0.00 0.00 7.20 0.46 0.00 0.00 7.50 0.50 0.00 0.00 7.80 0.53 0.00 0.00 8.10 0.57 0.00 0.00 8.40 0.61 0.00 0.00 8.70 0.66 0.00 0.00 9.00 0.71 0.00 0.00 9.30 0.77 0.00 0.00 9.60 0.83 0.00 0.00 9.90 0.90 0.00 0.00 10.20 0.97 0.00 0.00 10.50 1.06 0.00 0.00 10.80 1.15 0.00 0.00 11.10 1.26 0.00 0.00 11.40 1.40 0.00 0.00 11.70 1.66 0.00 0.00 12.00 2.44 0.06 0.08 12.30 3.22 0.23 0.29 12.60 3.48 0.31 0.14 12.90 3.62 0.35 0.09 13.20 3.73 0.39 0.07 13.50 3.82 0.42 0.06 13.80 3.91 0.45 0.06 14.10 3.98 0.48 0.05 14.40 4.05 0.51 0.05 14.70 4.11 0.53 0.05 15.00 4.17 0.55 0.04 15.30 4.22 0.57 0.04 Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 15.60 4.27 0.59 0.04 15.90 4.31 0.61 0.03 16.20 4.35 0.63 0.03 16.50 4.38 0.64 0.03 16.80 4.42 0.66 0.03 17.10 4.45 0.67 0.02 17.40 4.48 0.68 0.02 17.70 4.50 0.69 0.02 18.00 4.53 0.70 0.02 18.30 4.55 0.71 0.02 18.60 4.57 0.72 0.02 18.90 4.60 0.73 0.02 19.20 4.62 0.74 0.02 19.50 4.64 0.75 0.02 19.80 4.66 0.76 0.02 20.10 4.68 0.77 0.02 20.40 4.70 0.78 0.02 20.70 4.71 0.79 0.02 21.00 4.73 0.79 0.02 21.30 4.75 0.80 0.01 21.60 4.76 0.81 0.01 21.90 4.78 0.82 0.01 22.20 4.80 0.82 0.01 22.50 4.81 0.83 0.01 22.80 4.83 0.84 0.01 23.10 4.84 0.84 0.01 23.40 4.85 0.85 0.01 23.70 4.87 0.86 0.01 24.00 4.88 0.86 0.01 24.30 4.88 0.86 0.00 24.60 4.88 0.86 0.00 24.90 4.88 0.86 0.00 25.20 4.88 0.86 0.00 25.50 4.88 0.86 0.00 25.80 4.88 0.86 0.00 26.10 4.88 0.86 0.00 26.40 4.88 0.86 0.00 26.70 4.88 0.86 0.00 27.00 4.88 0.86 0.00 27.30 4.88 0.86 0.00 27.60 4.88 0.86 0.00 27.90 4.88 0.86 0.00 Type III 24-hr 10-year Rainfall=4.88"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 52HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 2S: Post-Development Watershed - S2 Runoff = 0.01 cfs @ 12.50 hrs, Volume= 0.003 af, Depth= 0.18" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-27.99 hrs, dt= 0.03 hrs Type III 24-hr 10-year Rainfall=4.88" Area (sf) CN Description 9,726 39 >75% Grass cover, Good, HSG A 9,726 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, (minimum) 5.0 0 Total, Increased to minimum Tc = 6.0 min Subcatchment 2S: Post-Development Watershed - S2 Runoff Hydrograph Time (hours) 26242220181614121086420Flow (cfs)0.007 0.006 0.005 0.005 0.004 0.004 0.003 0.003 0.002 0.002 0.001 0.001 0.000 0 Type III 24-hr 10-year Rainfall=4.88" Runoff Area=9,726 sf Runoff Volume=0.003 af Runoff Depth=0.18" Tc=6.0 min CN=39 0.01 cfs Type III 24-hr 10-year Rainfall=4.88"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 53HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Hydrograph for Subcatchment 2S: Post-Development Watershed - S2 Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 0.00 0.00 0.00 0.00 0.30 0.01 0.00 0.00 0.60 0.03 0.00 0.00 0.90 0.04 0.00 0.00 1.20 0.06 0.00 0.00 1.50 0.07 0.00 0.00 1.80 0.09 0.00 0.00 2.10 0.10 0.00 0.00 2.40 0.12 0.00 0.00 2.70 0.13 0.00 0.00 3.00 0.15 0.00 0.00 3.30 0.17 0.00 0.00 3.60 0.19 0.00 0.00 3.90 0.20 0.00 0.00 4.20 0.22 0.00 0.00 4.50 0.24 0.00 0.00 4.80 0.26 0.00 0.00 5.10 0.28 0.00 0.00 5.40 0.31 0.00 0.00 5.70 0.33 0.00 0.00 6.00 0.35 0.00 0.00 6.30 0.38 0.00 0.00 6.60 0.40 0.00 0.00 6.90 0.43 0.00 0.00 7.20 0.46 0.00 0.00 7.50 0.50 0.00 0.00 7.80 0.53 0.00 0.00 8.10 0.57 0.00 0.00 8.40 0.61 0.00 0.00 8.70 0.66 0.00 0.00 9.00 0.71 0.00 0.00 9.30 0.77 0.00 0.00 9.60 0.83 0.00 0.00 9.90 0.90 0.00 0.00 10.20 0.97 0.00 0.00 10.50 1.06 0.00 0.00 10.80 1.15 0.00 0.00 11.10 1.26 0.00 0.00 11.40 1.40 0.00 0.00 11.70 1.66 0.00 0.00 12.00 2.44 0.00 0.00 12.30 3.22 0.00 0.00 12.60 3.48 0.01 0.01 12.90 3.62 0.02 0.01 13.20 3.73 0.02 0.01 13.50 3.82 0.03 0.01 13.80 3.91 0.04 0.01 14.10 3.98 0.04 0.01 14.40 4.05 0.05 0.01 14.70 4.11 0.06 0.01 15.00 4.17 0.06 0.01 15.30 4.22 0.07 0.00 Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 15.60 4.27 0.08 0.00 15.90 4.31 0.08 0.00 16.20 4.35 0.09 0.00 16.50 4.38 0.09 0.00 16.80 4.42 0.10 0.00 17.10 4.45 0.10 0.00 17.40 4.48 0.11 0.00 17.70 4.50 0.11 0.00 18.00 4.53 0.12 0.00 18.30 4.55 0.12 0.00 18.60 4.57 0.12 0.00 18.90 4.60 0.13 0.00 19.20 4.62 0.13 0.00 19.50 4.64 0.13 0.00 19.80 4.66 0.14 0.00 20.10 4.68 0.14 0.00 20.40 4.70 0.14 0.00 20.70 4.71 0.15 0.00 21.00 4.73 0.15 0.00 21.30 4.75 0.15 0.00 21.60 4.76 0.15 0.00 21.90 4.78 0.16 0.00 22.20 4.80 0.16 0.00 22.50 4.81 0.16 0.00 22.80 4.83 0.17 0.00 23.10 4.84 0.17 0.00 23.40 4.85 0.17 0.00 23.70 4.87 0.17 0.00 24.00 4.88 0.18 0.00 24.30 4.88 0.18 0.00 24.60 4.88 0.18 0.00 24.90 4.88 0.18 0.00 25.20 4.88 0.18 0.00 25.50 4.88 0.18 0.00 25.80 4.88 0.18 0.00 26.10 4.88 0.18 0.00 26.40 4.88 0.18 0.00 26.70 4.88 0.18 0.00 27.00 4.88 0.18 0.00 27.30 4.88 0.18 0.00 27.60 4.88 0.18 0.00 27.90 4.88 0.18 0.00 Type III 24-hr 10-year Rainfall=4.88"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 54HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 3S: Post-Development Watershed - S3 Runoff = 0.07 cfs @ 12.53 hrs, Volume= 0.030 af, Depth= 0.21" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-27.99 hrs, dt= 0.03 hrs Type III 24-hr 10-year Rainfall=4.88" Area (sf) CN Description 2,900 98 Paved parking, HSG A 46,737 39 >75% Grass cover, Good, HSG A 25,000 36 Woods, Fair, HSG A 74,637 40 Weighted Average 71,737 96.11% Pervious Area 2,900 3.89% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.1 50 0.0400 0.14 Sheet Flow, Grass: Dense n= 0.240 P2= 3.36" 3.6 300 0.0400 1.40 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 0.7 150 0.1000 3.61 45.08 Channel Flow, Area= 12.5 sf Perim= 5.0' r= 2.50' n= 0.240 Sheet flow over Dense Grass 10.4 500 Total Subcatchment 3S: Post-Development Watershed - S3 Runoff Hydrograph Time (hours) 26242220181614121086420Flow (cfs)0.075 0.07 0.065 0.06 0.055 0.05 0.045 0.04 0.035 0.03 0.025 0.02 0.015 0.01 0.005 0 Type III 24-hr 10-year Rainfall=4.88" Runoff Area=74,637 sf Runoff Volume=0.030 af Runoff Depth=0.21" Flow Length=500' Tc=10.4 min CN=40 0.07 cfs Type III 24-hr 10-year Rainfall=4.88"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 55HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Hydrograph for Subcatchment 3S: Post-Development Watershed - S3 Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 0.00 0.00 0.00 0.00 0.30 0.01 0.00 0.00 0.60 0.03 0.00 0.00 0.90 0.04 0.00 0.00 1.20 0.06 0.00 0.00 1.50 0.07 0.00 0.00 1.80 0.09 0.00 0.00 2.10 0.10 0.00 0.00 2.40 0.12 0.00 0.00 2.70 0.13 0.00 0.00 3.00 0.15 0.00 0.00 3.30 0.17 0.00 0.00 3.60 0.19 0.00 0.00 3.90 0.20 0.00 0.00 4.20 0.22 0.00 0.00 4.50 0.24 0.00 0.00 4.80 0.26 0.00 0.00 5.10 0.28 0.00 0.00 5.40 0.31 0.00 0.00 5.70 0.33 0.00 0.00 6.00 0.35 0.00 0.00 6.30 0.38 0.00 0.00 6.60 0.40 0.00 0.00 6.90 0.43 0.00 0.00 7.20 0.46 0.00 0.00 7.50 0.50 0.00 0.00 7.80 0.53 0.00 0.00 8.10 0.57 0.00 0.00 8.40 0.61 0.00 0.00 8.70 0.66 0.00 0.00 9.00 0.71 0.00 0.00 9.30 0.77 0.00 0.00 9.60 0.83 0.00 0.00 9.90 0.90 0.00 0.00 10.20 0.97 0.00 0.00 10.50 1.06 0.00 0.00 10.80 1.15 0.00 0.00 11.10 1.26 0.00 0.00 11.40 1.40 0.00 0.00 11.70 1.66 0.00 0.00 12.00 2.44 0.00 0.00 12.30 3.22 0.00 0.01 12.60 3.48 0.01 0.07 12.90 3.62 0.02 0.06 13.20 3.73 0.03 0.05 13.50 3.82 0.04 0.05 13.80 3.91 0.05 0.05 14.10 3.98 0.06 0.05 14.40 4.05 0.07 0.05 14.70 4.11 0.08 0.05 15.00 4.17 0.08 0.05 15.30 4.22 0.09 0.04 Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 15.60 4.27 0.10 0.04 15.90 4.31 0.11 0.04 16.20 4.35 0.11 0.03 16.50 4.38 0.12 0.03 16.80 4.42 0.12 0.03 17.10 4.45 0.13 0.03 17.40 4.48 0.13 0.03 17.70 4.50 0.14 0.03 18.00 4.53 0.14 0.02 18.30 4.55 0.15 0.02 18.60 4.57 0.15 0.02 18.90 4.60 0.15 0.02 19.20 4.62 0.16 0.02 19.50 4.64 0.16 0.02 19.80 4.66 0.16 0.02 20.10 4.68 0.17 0.02 20.40 4.70 0.17 0.02 20.70 4.71 0.18 0.02 21.00 4.73 0.18 0.02 21.30 4.75 0.18 0.02 21.60 4.76 0.19 0.02 21.90 4.78 0.19 0.02 22.20 4.80 0.19 0.02 22.50 4.81 0.20 0.02 22.80 4.83 0.20 0.02 23.10 4.84 0.20 0.02 23.40 4.85 0.20 0.02 23.70 4.87 0.21 0.02 24.00 4.88 0.21 0.02 24.30 4.88 0.21 0.00 24.60 4.88 0.21 0.00 24.90 4.88 0.21 0.00 25.20 4.88 0.21 0.00 25.50 4.88 0.21 0.00 25.80 4.88 0.21 0.00 26.10 4.88 0.21 0.00 26.40 4.88 0.21 0.00 26.70 4.88 0.21 0.00 27.00 4.88 0.21 0.00 27.30 4.88 0.21 0.00 27.60 4.88 0.21 0.00 27.90 4.88 0.21 0.00 Type III 24-hr 10-year Rainfall=4.88"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 56HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 4S: Post-Development Watershed - S4 Runoff = 0.05 cfs @ 12.11 hrs, Volume= 0.005 af, Depth= 0.92" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-27.99 hrs, dt= 0.03 hrs Type III 24-hr 10-year Rainfall=4.88" Area (sf) CN Description 791 98 Paved parking, HSG A 2,053 39 >75% Grass cover, Good, HSG A 2,844 55 Weighted Average 2,053 72.19% Pervious Area 791 27.81% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, (minimum) 5.0 0 Total, Increased to minimum Tc = 6.0 min Subcatchment 4S: Post-Development Watershed - S4 Runoff Hydrograph Time (hours) 26242220181614121086420Flow (cfs)0.06 0.055 0.05 0.045 0.04 0.035 0.03 0.025 0.02 0.015 0.01 0.005 0 Type III 24-hr 10-year Rainfall=4.88" Runoff Area=2,844 sf Runoff Volume=0.005 af Runoff Depth=0.92" Tc=6.0 min CN=55 0.05 cfs Type III 24-hr 10-year Rainfall=4.88"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 57HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Hydrograph for Subcatchment 4S: Post-Development Watershed - S4 Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 0.00 0.00 0.00 0.00 0.30 0.01 0.00 0.00 0.60 0.03 0.00 0.00 0.90 0.04 0.00 0.00 1.20 0.06 0.00 0.00 1.50 0.07 0.00 0.00 1.80 0.09 0.00 0.00 2.10 0.10 0.00 0.00 2.40 0.12 0.00 0.00 2.70 0.13 0.00 0.00 3.00 0.15 0.00 0.00 3.30 0.17 0.00 0.00 3.60 0.19 0.00 0.00 3.90 0.20 0.00 0.00 4.20 0.22 0.00 0.00 4.50 0.24 0.00 0.00 4.80 0.26 0.00 0.00 5.10 0.28 0.00 0.00 5.40 0.31 0.00 0.00 5.70 0.33 0.00 0.00 6.00 0.35 0.00 0.00 6.30 0.38 0.00 0.00 6.60 0.40 0.00 0.00 6.90 0.43 0.00 0.00 7.20 0.46 0.00 0.00 7.50 0.50 0.00 0.00 7.80 0.53 0.00 0.00 8.10 0.57 0.00 0.00 8.40 0.61 0.00 0.00 8.70 0.66 0.00 0.00 9.00 0.71 0.00 0.00 9.30 0.77 0.00 0.00 9.60 0.83 0.00 0.00 9.90 0.90 0.00 0.00 10.20 0.97 0.00 0.00 10.50 1.06 0.00 0.00 10.80 1.15 0.00 0.00 11.10 1.26 0.00 0.00 11.40 1.40 0.00 0.00 11.70 1.66 0.00 0.00 12.00 2.44 0.07 0.02 12.30 3.22 0.26 0.03 12.60 3.48 0.34 0.01 12.90 3.62 0.39 0.01 13.20 3.73 0.43 0.01 13.50 3.82 0.46 0.01 13.80 3.91 0.49 0.01 14.10 3.98 0.52 0.01 14.40 4.05 0.55 0.01 14.70 4.11 0.57 0.01 15.00 4.17 0.60 0.01 15.30 4.22 0.62 0.00 Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 15.60 4.27 0.64 0.00 15.90 4.31 0.66 0.00 16.20 4.35 0.68 0.00 16.50 4.38 0.69 0.00 16.80 4.42 0.71 0.00 17.10 4.45 0.72 0.00 17.40 4.48 0.73 0.00 17.70 4.50 0.74 0.00 18.00 4.53 0.76 0.00 18.30 4.55 0.77 0.00 18.60 4.57 0.78 0.00 18.90 4.60 0.79 0.00 19.20 4.62 0.80 0.00 19.50 4.64 0.81 0.00 19.80 4.66 0.81 0.00 20.10 4.68 0.82 0.00 20.40 4.70 0.83 0.00 20.70 4.71 0.84 0.00 21.00 4.73 0.85 0.00 21.30 4.75 0.86 0.00 21.60 4.76 0.87 0.00 21.90 4.78 0.87 0.00 22.20 4.80 0.88 0.00 22.50 4.81 0.89 0.00 22.80 4.83 0.89 0.00 23.10 4.84 0.90 0.00 23.40 4.85 0.91 0.00 23.70 4.87 0.91 0.00 24.00 4.88 0.92 0.00 24.30 4.88 0.92 0.00 24.60 4.88 0.92 0.00 24.90 4.88 0.92 0.00 25.20 4.88 0.92 0.00 25.50 4.88 0.92 0.00 25.80 4.88 0.92 0.00 26.10 4.88 0.92 0.00 26.40 4.88 0.92 0.00 26.70 4.88 0.92 0.00 27.00 4.88 0.92 0.00 27.30 4.88 0.92 0.00 27.60 4.88 0.92 0.00 27.90 4.88 0.92 0.00 Type III 24-hr 10-year Rainfall=4.88"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 58HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 5S: Post-Development Watershed - S5 Runoff = 0.05 cfs @ 12.40 hrs, Volume= 0.012 af, Depth= 0.28" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-27.99 hrs, dt= 0.03 hrs Type III 24-hr 10-year Rainfall=4.88" Area (sf) CN Description 1,355 98 Paved parking, HSG A 16,825 39 >75% Grass cover, Good, HSG A 4,500 36 Woods, Fair, HSG A 22,680 42 Weighted Average 21,325 94.03% Pervious Area 1,355 5.97% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, (minimum) 5.0 0 Total, Increased to minimum Tc = 6.0 min Subcatchment 5S: Post-Development Watershed - S5 Runoff Hydrograph Time (hours) 26242220181614121086420Flow (cfs)0.052 0.05 0.048 0.046 0.044 0.042 0.04 0.038 0.036 0.034 0.032 0.03 0.028 0.026 0.024 0.022 0.02 0.018 0.016 0.014 0.012 0.01 0.008 0.006 0.004 0.002 0 Type III 24-hr 10-year Rainfall=4.88" Runoff Area=22,680 sf Runoff Volume=0.012 af Runoff Depth=0.28" Tc=6.0 min CN=42 0.05 cfs Type III 24-hr 10-year Rainfall=4.88"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 59HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Hydrograph for Subcatchment 5S: Post-Development Watershed - S5 Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 0.00 0.00 0.00 0.00 0.30 0.01 0.00 0.00 0.60 0.03 0.00 0.00 0.90 0.04 0.00 0.00 1.20 0.06 0.00 0.00 1.50 0.07 0.00 0.00 1.80 0.09 0.00 0.00 2.10 0.10 0.00 0.00 2.40 0.12 0.00 0.00 2.70 0.13 0.00 0.00 3.00 0.15 0.00 0.00 3.30 0.17 0.00 0.00 3.60 0.19 0.00 0.00 3.90 0.20 0.00 0.00 4.20 0.22 0.00 0.00 4.50 0.24 0.00 0.00 4.80 0.26 0.00 0.00 5.10 0.28 0.00 0.00 5.40 0.31 0.00 0.00 5.70 0.33 0.00 0.00 6.00 0.35 0.00 0.00 6.30 0.38 0.00 0.00 6.60 0.40 0.00 0.00 6.90 0.43 0.00 0.00 7.20 0.46 0.00 0.00 7.50 0.50 0.00 0.00 7.80 0.53 0.00 0.00 8.10 0.57 0.00 0.00 8.40 0.61 0.00 0.00 8.70 0.66 0.00 0.00 9.00 0.71 0.00 0.00 9.30 0.77 0.00 0.00 9.60 0.83 0.00 0.00 9.90 0.90 0.00 0.00 10.20 0.97 0.00 0.00 10.50 1.06 0.00 0.00 10.80 1.15 0.00 0.00 11.10 1.26 0.00 0.00 11.40 1.40 0.00 0.00 11.70 1.66 0.00 0.00 12.00 2.44 0.00 0.00 12.30 3.22 0.01 0.04 12.60 3.48 0.04 0.03 12.90 3.62 0.05 0.03 13.20 3.73 0.06 0.02 13.50 3.82 0.08 0.02 13.80 3.91 0.09 0.02 14.10 3.98 0.10 0.02 14.40 4.05 0.11 0.02 14.70 4.11 0.12 0.02 15.00 4.17 0.13 0.02 15.30 4.22 0.14 0.02 Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 15.60 4.27 0.15 0.02 15.90 4.31 0.16 0.01 16.20 4.35 0.16 0.01 16.50 4.38 0.17 0.01 16.80 4.42 0.18 0.01 17.10 4.45 0.18 0.01 17.40 4.48 0.19 0.01 17.70 4.50 0.20 0.01 18.00 4.53 0.20 0.01 18.30 4.55 0.21 0.01 18.60 4.57 0.21 0.01 18.90 4.60 0.22 0.01 19.20 4.62 0.22 0.01 19.50 4.64 0.22 0.01 19.80 4.66 0.23 0.01 20.10 4.68 0.23 0.01 20.40 4.70 0.24 0.01 20.70 4.71 0.24 0.01 21.00 4.73 0.25 0.01 21.30 4.75 0.25 0.01 21.60 4.76 0.25 0.01 21.90 4.78 0.26 0.01 22.20 4.80 0.26 0.01 22.50 4.81 0.26 0.01 22.80 4.83 0.27 0.01 23.10 4.84 0.27 0.01 23.40 4.85 0.28 0.01 23.70 4.87 0.28 0.01 24.00 4.88 0.28 0.01 24.30 4.88 0.28 0.00 24.60 4.88 0.28 0.00 24.90 4.88 0.28 0.00 25.20 4.88 0.28 0.00 25.50 4.88 0.28 0.00 25.80 4.88 0.28 0.00 26.10 4.88 0.28 0.00 26.40 4.88 0.28 0.00 26.70 4.88 0.28 0.00 27.00 4.88 0.28 0.00 27.30 4.88 0.28 0.00 27.60 4.88 0.28 0.00 27.90 4.88 0.28 0.00 Type III 24-hr 10-year Rainfall=4.88"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 60HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 6S: Post-Development Watershed - Non-Recharge Areas Only Runoff = 0.06 cfs @ 14.83 hrs, Volume= 0.036 af, Depth= 0.12" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-27.99 hrs, dt= 0.03 hrs Type III 24-hr 10-year Rainfall=4.88" Area (sf) CN Description 609 98 Paved parking, HSG A 30,000 39 >75% Grass cover, Good, HSG A 127,481 36 Woods, Fair, HSG A 158,090 37 Weighted Average 157,481 99.61% Pervious Area 609 0.39% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.3 50 0.1000 0.13 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 3.36" 6.3 500 0.0700 1.32 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 12.6 550 Total Subcatchment 6S: Post-Development Watershed - Non-Recharge Areas Only Runoff Hydrograph Time (hours) 26242220181614121086420Flow (cfs)0.06 0.055 0.05 0.045 0.04 0.035 0.03 0.025 0.02 0.015 0.01 0.005 0 Type III 24-hr 10-year Rainfall=4.88" Runoff Area=158,090 sf Runoff Volume=0.036 af Runoff Depth=0.12" Flow Length=550' Tc=12.6 min CN=37 0.06 cfs Type III 24-hr 10-year Rainfall=4.88"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 61HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Hydrograph for Subcatchment 6S: Post-Development Watershed - Non-Recharge Areas Only Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 0.00 0.00 0.00 0.00 0.30 0.01 0.00 0.00 0.60 0.03 0.00 0.00 0.90 0.04 0.00 0.00 1.20 0.06 0.00 0.00 1.50 0.07 0.00 0.00 1.80 0.09 0.00 0.00 2.10 0.10 0.00 0.00 2.40 0.12 0.00 0.00 2.70 0.13 0.00 0.00 3.00 0.15 0.00 0.00 3.30 0.17 0.00 0.00 3.60 0.19 0.00 0.00 3.90 0.20 0.00 0.00 4.20 0.22 0.00 0.00 4.50 0.24 0.00 0.00 4.80 0.26 0.00 0.00 5.10 0.28 0.00 0.00 5.40 0.31 0.00 0.00 5.70 0.33 0.00 0.00 6.00 0.35 0.00 0.00 6.30 0.38 0.00 0.00 6.60 0.40 0.00 0.00 6.90 0.43 0.00 0.00 7.20 0.46 0.00 0.00 7.50 0.50 0.00 0.00 7.80 0.53 0.00 0.00 8.10 0.57 0.00 0.00 8.40 0.61 0.00 0.00 8.70 0.66 0.00 0.00 9.00 0.71 0.00 0.00 9.30 0.77 0.00 0.00 9.60 0.83 0.00 0.00 9.90 0.90 0.00 0.00 10.20 0.97 0.00 0.00 10.50 1.06 0.00 0.00 10.80 1.15 0.00 0.00 11.10 1.26 0.00 0.00 11.40 1.40 0.00 0.00 11.70 1.66 0.00 0.00 12.00 2.44 0.00 0.00 12.30 3.22 0.00 0.00 12.60 3.48 0.00 0.00 12.90 3.62 0.00 0.03 13.20 3.73 0.01 0.04 13.50 3.82 0.01 0.05 13.80 3.91 0.01 0.05 14.10 3.98 0.02 0.05 14.40 4.05 0.02 0.06 14.70 4.11 0.03 0.06 15.00 4.17 0.03 0.06 15.30 4.22 0.04 0.06 Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 15.60 4.27 0.04 0.05 15.90 4.31 0.05 0.05 16.20 4.35 0.05 0.05 16.50 4.38 0.05 0.05 16.80 4.42 0.06 0.04 17.10 4.45 0.06 0.04 17.40 4.48 0.06 0.04 17.70 4.50 0.07 0.04 18.00 4.53 0.07 0.04 18.30 4.55 0.07 0.03 18.60 4.57 0.08 0.03 18.90 4.60 0.08 0.03 19.20 4.62 0.08 0.03 19.50 4.64 0.08 0.03 19.80 4.66 0.09 0.03 20.10 4.68 0.09 0.03 20.40 4.70 0.09 0.03 20.70 4.71 0.09 0.03 21.00 4.73 0.10 0.03 21.30 4.75 0.10 0.03 21.60 4.76 0.10 0.03 21.90 4.78 0.10 0.03 22.20 4.80 0.11 0.03 22.50 4.81 0.11 0.03 22.80 4.83 0.11 0.03 23.10 4.84 0.11 0.03 23.40 4.85 0.11 0.03 23.70 4.87 0.12 0.02 24.00 4.88 0.12 0.02 24.30 4.88 0.12 0.00 24.60 4.88 0.12 0.00 24.90 4.88 0.12 0.00 25.20 4.88 0.12 0.00 25.50 4.88 0.12 0.00 25.80 4.88 0.12 0.00 26.10 4.88 0.12 0.00 26.40 4.88 0.12 0.00 26.70 4.88 0.12 0.00 27.00 4.88 0.12 0.00 27.30 4.88 0.12 0.00 27.60 4.88 0.12 0.00 27.90 4.88 0.12 0.00 Type III 24-hr 10-year Rainfall=4.88"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 62HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 9S: Pre-Development Watershed - Entire Site Runoff = 0.24 cfs @ 13.89 hrs, Volume= 0.145 af, Depth= 0.15" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-27.99 hrs, dt= 0.03 hrs Type III 24-hr 10-year Rainfall=4.88" Area (sf) CN Description 401,143 36 Woods, Fair, HSG A 120,000 43 Woods/grass comb., Fair, HSG A 521,143 38 Weighted Average 521,143 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 50 0.0780 0.12 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 3.36" 6.2 520 0.0780 1.40 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 13.2 570 Total Subcatchment 9S: Pre-Development Watershed - Entire Site Runoff Hydrograph Time (hours) 26242220181614121086420Flow (cfs)0.26 0.25 0.24 0.23 0.22 0.21 0.2 0.19 0.18 0.17 0.16 0.15 0.14 0.13 0.12 0.11 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0 Type III 24-hr 10-year Rainfall=4.88" Runoff Area=521,143 sf Runoff Volume=0.145 af Runoff Depth=0.15" Flow Length=570' Slope=0.0780 '/' Tc=13.2 min CN=38 0.24 cfs Type III 24-hr 10-year Rainfall=4.88"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 63HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Hydrograph for Subcatchment 9S: Pre-Development Watershed - Entire Site Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 0.00 0.00 0.00 0.00 0.30 0.01 0.00 0.00 0.60 0.03 0.00 0.00 0.90 0.04 0.00 0.00 1.20 0.06 0.00 0.00 1.50 0.07 0.00 0.00 1.80 0.09 0.00 0.00 2.10 0.10 0.00 0.00 2.40 0.12 0.00 0.00 2.70 0.13 0.00 0.00 3.00 0.15 0.00 0.00 3.30 0.17 0.00 0.00 3.60 0.19 0.00 0.00 3.90 0.20 0.00 0.00 4.20 0.22 0.00 0.00 4.50 0.24 0.00 0.00 4.80 0.26 0.00 0.00 5.10 0.28 0.00 0.00 5.40 0.31 0.00 0.00 5.70 0.33 0.00 0.00 6.00 0.35 0.00 0.00 6.30 0.38 0.00 0.00 6.60 0.40 0.00 0.00 6.90 0.43 0.00 0.00 7.20 0.46 0.00 0.00 7.50 0.50 0.00 0.00 7.80 0.53 0.00 0.00 8.10 0.57 0.00 0.00 8.40 0.61 0.00 0.00 8.70 0.66 0.00 0.00 9.00 0.71 0.00 0.00 9.30 0.77 0.00 0.00 9.60 0.83 0.00 0.00 9.90 0.90 0.00 0.00 10.20 0.97 0.00 0.00 10.50 1.06 0.00 0.00 10.80 1.15 0.00 0.00 11.10 1.26 0.00 0.00 11.40 1.40 0.00 0.00 11.70 1.66 0.00 0.00 12.00 2.44 0.00 0.00 12.30 3.22 0.00 0.00 12.60 3.48 0.00 0.10 12.90 3.62 0.01 0.19 13.20 3.73 0.01 0.21 13.50 3.82 0.02 0.23 13.80 3.91 0.02 0.24 14.10 3.98 0.03 0.23 14.40 4.05 0.04 0.23 14.70 4.11 0.04 0.23 15.00 4.17 0.05 0.23 15.30 4.22 0.05 0.22 Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 15.60 4.27 0.06 0.21 15.90 4.31 0.06 0.20 16.20 4.35 0.07 0.18 16.50 4.38 0.07 0.18 16.80 4.42 0.08 0.17 17.10 4.45 0.08 0.16 17.40 4.48 0.08 0.16 17.70 4.50 0.09 0.15 18.00 4.53 0.09 0.14 18.30 4.55 0.09 0.13 18.60 4.57 0.10 0.13 18.90 4.60 0.10 0.13 19.20 4.62 0.10 0.12 19.50 4.64 0.11 0.12 19.80 4.66 0.11 0.12 20.10 4.68 0.11 0.12 20.40 4.70 0.12 0.12 20.70 4.71 0.12 0.11 21.00 4.73 0.12 0.11 21.30 4.75 0.12 0.11 21.60 4.76 0.13 0.11 21.90 4.78 0.13 0.11 22.20 4.80 0.13 0.10 22.50 4.81 0.13 0.10 22.80 4.83 0.14 0.10 23.10 4.84 0.14 0.10 23.40 4.85 0.14 0.09 23.70 4.87 0.14 0.09 24.00 4.88 0.15 0.09 24.30 4.88 0.15 0.01 24.60 4.88 0.15 0.00 24.90 4.88 0.15 0.00 25.20 4.88 0.15 0.00 25.50 4.88 0.15 0.00 25.80 4.88 0.15 0.00 26.10 4.88 0.15 0.00 26.40 4.88 0.15 0.00 26.70 4.88 0.15 0.00 27.00 4.88 0.15 0.00 27.30 4.88 0.15 0.00 27.60 4.88 0.15 0.00 27.90 4.88 0.15 0.00 Type III 24-hr 10-year Rainfall=4.88"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 64HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Summary for Reach 1R: Post-Development Peak Discharge Rate Inflow Area = 6.709 ac, 3.98% Impervious, Inflow Depth = 0.06" for 10-year event Inflow = 0.06 cfs @ 14.83 hrs, Volume= 0.036 af Outflow = 0.06 cfs @ 14.83 hrs, Volume= 0.036 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-27.99 hrs, dt= 0.03 hrs Reach 1R: Post-Development Peak Discharge Rate Inflow Outflow Hydrograph Time (hours) 26242220181614121086420Flow (cfs)0.06 0.055 0.05 0.045 0.04 0.035 0.03 0.025 0.02 0.015 0.01 0.005 0 Inflow Area=6.709 ac 0.06 cfs 0.06 cfs Type III 24-hr 10-year Rainfall=4.88"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 65HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Hydrograph for Reach 1R: Post-Development Peak Discharge Rate Time (hours) Inflow (cfs) Elevation (feet) Outflow (cfs) 0.00 0.00 0.00 0.30 0.00 0.00 0.60 0.00 0.00 0.90 0.00 0.00 1.20 0.00 0.00 1.50 0.00 0.00 1.80 0.00 0.00 2.10 0.00 0.00 2.40 0.00 0.00 2.70 0.00 0.00 3.00 0.00 0.00 3.30 0.00 0.00 3.60 0.00 0.00 3.90 0.00 0.00 4.20 0.00 0.00 4.50 0.00 0.00 4.80 0.00 0.00 5.10 0.00 0.00 5.40 0.00 0.00 5.70 0.00 0.00 6.00 0.00 0.00 6.30 0.00 0.00 6.60 0.00 0.00 6.90 0.00 0.00 7.20 0.00 0.00 7.50 0.00 0.00 7.80 0.00 0.00 8.10 0.00 0.00 8.40 0.00 0.00 8.70 0.00 0.00 9.00 0.00 0.00 9.30 0.00 0.00 9.60 0.00 0.00 9.90 0.00 0.00 10.20 0.00 0.00 10.50 0.00 0.00 10.80 0.00 0.00 11.10 0.00 0.00 11.40 0.00 0.00 11.70 0.00 0.00 12.00 0.00 0.00 12.30 0.00 0.00 12.60 0.00 0.00 12.90 0.03 0.03 13.20 0.04 0.04 13.50 0.05 0.05 13.80 0.05 0.05 14.10 0.05 0.05 14.40 0.06 0.06 14.70 0.06 0.06 15.00 0.06 0.06 15.30 0.06 0.06 Time (hours) Inflow (cfs) Elevation (feet) Outflow (cfs) 15.60 0.05 0.05 15.90 0.05 0.05 16.20 0.05 0.05 16.50 0.05 0.05 16.80 0.04 0.04 17.10 0.04 0.04 17.40 0.04 0.04 17.70 0.04 0.04 18.00 0.04 0.04 18.30 0.03 0.03 18.60 0.03 0.03 18.90 0.03 0.03 19.20 0.03 0.03 19.50 0.03 0.03 19.80 0.03 0.03 20.10 0.03 0.03 20.40 0.03 0.03 20.70 0.03 0.03 21.00 0.03 0.03 21.30 0.03 0.03 21.60 0.03 0.03 21.90 0.03 0.03 22.20 0.03 0.03 22.50 0.03 0.03 22.80 0.03 0.03 23.10 0.03 0.03 23.40 0.03 0.03 23.70 0.02 0.02 24.00 0.02 0.02 24.30 0.00 0.00 24.60 0.00 0.00 24.90 0.00 0.00 25.20 0.00 0.00 25.50 0.00 0.00 25.80 0.00 0.00 26.10 0.00 0.00 26.40 0.00 0.00 26.70 0.00 0.00 27.00 0.00 0.00 27.30 0.00 0.00 27.60 0.00 0.00 27.90 0.00 0.00 Type III 24-hr 10-year Rainfall=4.88"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 66HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Summary for Reach 9R: Pre-Development Peak Discharge Rate Inflow Area = 11.964 ac, 0.00% Impervious, Inflow Depth = 0.15" for 10-year event Inflow = 0.24 cfs @ 13.89 hrs, Volume= 0.145 af Outflow = 0.24 cfs @ 13.89 hrs, Volume= 0.145 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-27.99 hrs, dt= 0.03 hrs Reach 9R: Pre-Development Peak Discharge Rate Inflow Outflow Hydrograph Time (hours) 26242220181614121086420Flow (cfs)0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 Inflow Area=11.964 ac 0.24 cfs 0.24 cfs Type III 24-hr 10-year Rainfall=4.88"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 67HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Hydrograph for Reach 9R: Pre-Development Peak Discharge Rate Time (hours) Inflow (cfs) Elevation (feet) Outflow (cfs) 0.00 0.00 0.00 0.30 0.00 0.00 0.60 0.00 0.00 0.90 0.00 0.00 1.20 0.00 0.00 1.50 0.00 0.00 1.80 0.00 0.00 2.10 0.00 0.00 2.40 0.00 0.00 2.70 0.00 0.00 3.00 0.00 0.00 3.30 0.00 0.00 3.60 0.00 0.00 3.90 0.00 0.00 4.20 0.00 0.00 4.50 0.00 0.00 4.80 0.00 0.00 5.10 0.00 0.00 5.40 0.00 0.00 5.70 0.00 0.00 6.00 0.00 0.00 6.30 0.00 0.00 6.60 0.00 0.00 6.90 0.00 0.00 7.20 0.00 0.00 7.50 0.00 0.00 7.80 0.00 0.00 8.10 0.00 0.00 8.40 0.00 0.00 8.70 0.00 0.00 9.00 0.00 0.00 9.30 0.00 0.00 9.60 0.00 0.00 9.90 0.00 0.00 10.20 0.00 0.00 10.50 0.00 0.00 10.80 0.00 0.00 11.10 0.00 0.00 11.40 0.00 0.00 11.70 0.00 0.00 12.00 0.00 0.00 12.30 0.00 0.00 12.60 0.10 0.10 12.90 0.19 0.19 13.20 0.21 0.21 13.50 0.23 0.23 13.80 0.24 0.24 14.10 0.23 0.23 14.40 0.23 0.23 14.70 0.23 0.23 15.00 0.23 0.23 15.30 0.22 0.22 Time (hours) Inflow (cfs) Elevation (feet) Outflow (cfs) 15.60 0.21 0.21 15.90 0.20 0.20 16.20 0.18 0.18 16.50 0.18 0.18 16.80 0.17 0.17 17.10 0.16 0.16 17.40 0.16 0.16 17.70 0.15 0.15 18.00 0.14 0.14 18.30 0.13 0.13 18.60 0.13 0.13 18.90 0.13 0.13 19.20 0.12 0.12 19.50 0.12 0.12 19.80 0.12 0.12 20.10 0.12 0.12 20.40 0.12 0.12 20.70 0.11 0.11 21.00 0.11 0.11 21.30 0.11 0.11 21.60 0.11 0.11 21.90 0.11 0.11 22.20 0.10 0.10 22.50 0.10 0.10 22.80 0.10 0.10 23.10 0.10 0.10 23.40 0.09 0.09 23.70 0.09 0.09 24.00 0.09 0.09 24.30 0.01 0.01 24.60 0.00 0.00 24.90 0.00 0.00 25.20 0.00 0.00 25.50 0.00 0.00 25.80 0.00 0.00 26.10 0.00 0.00 26.40 0.00 0.00 26.70 0.00 0.00 27.00 0.00 0.00 27.30 0.00 0.00 27.60 0.00 0.00 27.90 0.00 0.00 Type III 24-hr 10-year Rainfall=4.88"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 68HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Summary for Pond S1: Grassed Swale Leaching - S1 Inflow Area = 0.557 ac, 24.62% Impervious, Inflow Depth = 0.86" for 10-year event Inflow = 0.37 cfs @ 12.16 hrs, Volume= 0.040 af Outflow = 0.07 cfs @ 13.15 hrs, Volume= 0.040 af, Atten= 81%, Lag= 59.3 min Discarded = 0.07 cfs @ 13.15 hrs, Volume= 0.040 af Primary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-27.99 hrs, dt= 0.03 hrs Peak Elev= 50.54' @ 13.15 hrs Surf.Area= 964 sf Storage= 472 cf Plug-Flow detention time= 67.6 min calculated for 0.040 af (100% of inflow) Center-of-Mass det. time= 67.6 min ( 969.9 - 902.3 ) Volume Invert Avail.Storage Storage Description #1 50.00' 2,293 cf Grassed Swale (Irregular) Listed below (Recalc) Elevation Surf.Area Perim. Inc.Store Cum.Store Wet.Area (feet) (sq-ft) (feet) (cubic-feet) (cubic-feet) (sq-ft) 50.00 779 139.0 0 0 779 52.00 1,559 210.0 2,293 2,293 2,781 Device Routing Invert Outlet Devices #1 Discarded 50.00'2.410 in/hr Exfiltration over Wetted area Phase-In= 0.01' #2 Primary 51.90'10.0' long (Profile 6) Broad-Crested Rectangular Weir Head (feet) 0.49 0.98 1.48 Coef. (English) 3.12 3.41 3.59 Discarded OutFlow Max=0.07 cfs @ 13.15 hrs HW=50.54' (Free Discharge) 1=Exfiltration (Exfiltration Controls 0.07 cfs) Primary OutFlow Max=0.00 cfs @ 0.00 hrs HW=50.00' TW=0.00' (Dynamic Tailwater) 2=Broad-Crested Rectangular Weir ( Controls 0.00 cfs) Type III 24-hr 10-year Rainfall=4.88"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 69HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Pond S1: Grassed Swale Leaching - S1 Inflow Outflow Discarded Primary Hydrograph Time (hours) 26242220181614121086420Flow (cfs)0.4 0.38 0.36 0.34 0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 Inflow Area=0.557 ac Peak Elev=50.54' Storage=472 cf 0.37 cfs 0.07 cfs 0.07 cfs 0.00 cfs Pond S1: Grassed Swale Leaching - S1 Total Discarded Primary Stage-Discharge Discharge (cfs) 10Elevation (feet)52 51 50 Exfiltration Broad-Crested Rectangular Weir Type III 24-hr 10-year Rainfall=4.88"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 70HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Pond S1: Grassed Swale Leaching - S1 Surface Wetted Storage Stage-Area-Storage Storage (cubic-feet) 2,2002,0001,8001,6001,4001,2001,0008006004002000 Surface/Horizontal/Wetted Area (sq-ft) 2,5002,0001,5001,0005000 Elevation (feet)52 51 50 Grassed Swale Type III 24-hr 10-year Rainfall=4.88"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 71HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Hydrograph for Pond S1: Grassed Swale Leaching - S1 Time (hours) Inflow (cfs) Storage (cubic-feet) Elevation (feet) Outflow (cfs) Discarded (cfs) Primary (cfs) 0.00 0.00 0 50.00 0.00 0.00 0.00 0.60 0.00 0 50.00 0.00 0.00 0.00 1.20 0.00 0 50.00 0.00 0.00 0.00 1.80 0.00 0 50.00 0.00 0.00 0.00 2.40 0.00 0 50.00 0.00 0.00 0.00 3.00 0.00 0 50.00 0.00 0.00 0.00 3.60 0.00 0 50.00 0.00 0.00 0.00 4.20 0.00 0 50.00 0.00 0.00 0.00 4.80 0.00 0 50.00 0.00 0.00 0.00 5.40 0.00 0 50.00 0.00 0.00 0.00 6.00 0.00 0 50.00 0.00 0.00 0.00 6.60 0.00 0 50.00 0.00 0.00 0.00 7.20 0.00 0 50.00 0.00 0.00 0.00 7.80 0.00 0 50.00 0.00 0.00 0.00 8.40 0.00 0 50.00 0.00 0.00 0.00 9.00 0.00 0 50.00 0.00 0.00 0.00 9.60 0.00 0 50.00 0.00 0.00 0.00 10.20 0.00 0 50.00 0.00 0.00 0.00 10.80 0.00 0 50.00 0.00 0.00 0.00 11.40 0.00 0 50.00 0.00 0.00 0.00 12.00 0.08 8 50.01 0.04 0.04 0.00 12.60 0.14 429 50.50 0.07 0.07 0.00 13.20 0.07 472 50.54 0.07 0.07 0.00 13.80 0.06 458 50.53 0.07 0.07 0.00 14.40 0.05 424 50.49 0.07 0.07 0.00 15.00 0.04 380 50.45 0.06 0.06 0.00 15.60 0.04 329 50.39 0.06 0.06 0.00 16.20 0.03 269 50.32 0.06 0.06 0.00 16.80 0.03 207 50.25 0.06 0.06 0.00 17.40 0.02 145 50.18 0.05 0.05 0.00 18.00 0.02 84 50.11 0.05 0.05 0.00 18.60 0.02 25 50.03 0.04 0.04 0.00 19.20 0.02 3 50.00 0.02 0.02 0.00 19.80 0.02 3 50.00 0.02 0.02 0.00 20.40 0.02 3 50.00 0.02 0.02 0.00 21.00 0.02 3 50.00 0.02 0.02 0.00 21.60 0.01 3 50.00 0.01 0.01 0.00 22.20 0.01 2 50.00 0.01 0.01 0.00 22.80 0.01 2 50.00 0.01 0.01 0.00 23.40 0.01 2 50.00 0.01 0.01 0.00 24.00 0.01 2 50.00 0.01 0.01 0.00 24.60 0.00 0 50.00 0.00 0.00 0.00 25.20 0.00 0 50.00 0.00 0.00 0.00 25.80 0.00 0 50.00 0.00 0.00 0.00 26.40 0.00 0 50.00 0.00 0.00 0.00 27.00 0.00 0 50.00 0.00 0.00 0.00 27.60 0.00 0 50.00 0.00 0.00 0.00 Type III 24-hr 10-year Rainfall=4.88"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 72HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Stage-Discharge for Pond S1: Grassed Swale Leaching - S1 Elevation (feet) Discharge (cfs) Discarded (cfs) Primary (cfs) 50.00 0.00 0.00 0.00 50.02 0.04 0.04 0.00 50.04 0.05 0.05 0.00 50.06 0.05 0.05 0.00 50.08 0.05 0.05 0.00 50.10 0.05 0.05 0.00 50.12 0.05 0.05 0.00 50.14 0.05 0.05 0.00 50.16 0.05 0.05 0.00 50.18 0.05 0.05 0.00 50.20 0.05 0.05 0.00 50.22 0.05 0.05 0.00 50.24 0.05 0.05 0.00 50.26 0.06 0.06 0.00 50.28 0.06 0.06 0.00 50.30 0.06 0.06 0.00 50.32 0.06 0.06 0.00 50.34 0.06 0.06 0.00 50.36 0.06 0.06 0.00 50.38 0.06 0.06 0.00 50.40 0.06 0.06 0.00 50.42 0.06 0.06 0.00 50.44 0.06 0.06 0.00 50.46 0.07 0.07 0.00 50.48 0.07 0.07 0.00 50.50 0.07 0.07 0.00 50.52 0.07 0.07 0.00 50.54 0.07 0.07 0.00 50.56 0.07 0.07 0.00 50.58 0.07 0.07 0.00 50.60 0.07 0.07 0.00 50.62 0.07 0.07 0.00 50.64 0.07 0.07 0.00 50.66 0.08 0.08 0.00 50.68 0.08 0.08 0.00 50.70 0.08 0.08 0.00 50.72 0.08 0.08 0.00 50.74 0.08 0.08 0.00 50.76 0.08 0.08 0.00 50.78 0.08 0.08 0.00 50.80 0.08 0.08 0.00 50.82 0.08 0.08 0.00 50.84 0.08 0.08 0.00 50.86 0.09 0.09 0.00 50.88 0.09 0.09 0.00 50.90 0.09 0.09 0.00 50.92 0.09 0.09 0.00 50.94 0.09 0.09 0.00 50.96 0.09 0.09 0.00 50.98 0.09 0.09 0.00 51.00 0.09 0.09 0.00 51.02 0.09 0.09 0.00 Elevation (feet) Discharge (cfs) Discarded (cfs) Primary (cfs) 51.04 0.10 0.10 0.00 51.06 0.10 0.10 0.00 51.08 0.10 0.10 0.00 51.10 0.10 0.10 0.00 51.12 0.10 0.10 0.00 51.14 0.10 0.10 0.00 51.16 0.10 0.10 0.00 51.18 0.10 0.10 0.00 51.20 0.11 0.11 0.00 51.22 0.11 0.11 0.00 51.24 0.11 0.11 0.00 51.26 0.11 0.11 0.00 51.28 0.11 0.11 0.00 51.30 0.11 0.11 0.00 51.32 0.11 0.11 0.00 51.34 0.11 0.11 0.00 51.36 0.11 0.11 0.00 51.38 0.12 0.12 0.00 51.40 0.12 0.12 0.00 51.42 0.12 0.12 0.00 51.44 0.12 0.12 0.00 51.46 0.12 0.12 0.00 51.48 0.12 0.12 0.00 51.50 0.12 0.12 0.00 51.52 0.12 0.12 0.00 51.54 0.13 0.13 0.00 51.56 0.13 0.13 0.00 51.58 0.13 0.13 0.00 51.60 0.13 0.13 0.00 51.62 0.13 0.13 0.00 51.64 0.13 0.13 0.00 51.66 0.13 0.13 0.00 51.68 0.13 0.13 0.00 51.70 0.14 0.14 0.00 51.72 0.14 0.14 0.00 51.74 0.14 0.14 0.00 51.76 0.14 0.14 0.00 51.78 0.14 0.14 0.00 51.80 0.14 0.14 0.00 51.82 0.14 0.14 0.00 51.84 0.14 0.14 0.00 51.86 0.15 0.15 0.00 51.88 0.15 0.15 0.00 51.90 0.15 0.15 0.00 51.92 0.24 0.15 0.09 51.94 0.40 0.15 0.25 51.96 0.61 0.15 0.46 51.98 0.86 0.15 0.71 52.00 1.14 0.16 0.99 Type III 24-hr 10-year Rainfall=4.88"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 73HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond S1: Grassed Swale Leaching - S1 Elevation (feet) Surface (sq-ft) Wetted (sq-ft) Storage (cubic-feet) 50.00 779 779 0 50.02 785 795 16 50.04 792 811 31 50.06 799 827 47 50.08 805 843 63 50.10 812 860 80 50.12 818 876 96 50.14 825 893 112 50.16 832 909 129 50.18 838 926 146 50.20 845 943 162 50.22 852 959 179 50.24 858 976 196 50.26 865 993 214 50.28 872 1,010 231 50.30 879 1,027 249 50.32 886 1,045 266 50.34 893 1,062 284 50.36 900 1,079 302 50.38 907 1,097 320 50.40 914 1,114 338 50.42 921 1,132 356 50.44 928 1,150 375 50.46 935 1,167 394 50.48 942 1,185 412 50.50 949 1,203 431 50.52 956 1,221 450 50.54 963 1,239 470 50.56 970 1,258 489 50.58 978 1,276 508 50.60 985 1,294 528 50.62 992 1,313 548 50.64 999 1,331 568 50.66 1,007 1,350 588 50.68 1,014 1,368 608 50.70 1,022 1,387 628 50.72 1,029 1,406 649 50.74 1,036 1,425 669 50.76 1,044 1,444 690 50.78 1,051 1,463 711 50.80 1,059 1,482 732 50.82 1,066 1,501 754 50.84 1,074 1,521 775 50.86 1,082 1,540 796 50.88 1,089 1,560 818 50.90 1,097 1,579 840 50.92 1,105 1,599 862 50.94 1,112 1,619 884 50.96 1,120 1,639 907 50.98 1,128 1,658 929 51.00 1,136 1,678 952 51.02 1,143 1,698 974 Elevation (feet) Surface (sq-ft) Wetted (sq-ft) Storage (cubic-feet) 51.04 1,151 1,719 997 51.06 1,159 1,739 1,021 51.08 1,167 1,759 1,044 51.10 1,175 1,780 1,067 51.12 1,183 1,800 1,091 51.14 1,191 1,821 1,114 51.16 1,199 1,841 1,138 51.18 1,207 1,862 1,162 51.20 1,215 1,883 1,187 51.22 1,223 1,904 1,211 51.24 1,231 1,925 1,236 51.26 1,239 1,946 1,260 51.28 1,247 1,967 1,285 51.30 1,256 1,988 1,310 51.32 1,264 2,009 1,335 51.34 1,272 2,031 1,361 51.36 1,280 2,052 1,386 51.38 1,289 2,074 1,412 51.40 1,297 2,095 1,438 51.42 1,305 2,117 1,464 51.44 1,314 2,139 1,490 51.46 1,322 2,161 1,516 51.48 1,330 2,182 1,543 51.50 1,339 2,204 1,570 51.52 1,347 2,227 1,596 51.54 1,356 2,249 1,623 51.56 1,364 2,271 1,651 51.58 1,373 2,293 1,678 51.60 1,382 2,316 1,706 51.62 1,390 2,338 1,733 51.64 1,399 2,361 1,761 51.66 1,407 2,384 1,789 51.68 1,416 2,406 1,818 51.70 1,425 2,429 1,846 51.72 1,434 2,452 1,874 51.74 1,442 2,475 1,903 51.76 1,451 2,498 1,932 51.78 1,460 2,521 1,961 51.80 1,469 2,545 1,991 51.82 1,478 2,568 2,020 51.84 1,487 2,591 2,050 51.86 1,496 2,615 2,080 51.88 1,505 2,638 2,110 51.90 1,514 2,662 2,140 51.92 1,523 2,686 2,170 51.94 1,532 2,710 2,201 51.96 1,541 2,733 2,231 51.98 1,550 2,757 2,262 52.00 1,559 2,781 2,293 Type III 24-hr 10-year Rainfall=4.88"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 74HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Summary for Pond S2: Grassed Swale Leaching - S2 Inflow Area = 0.223 ac, 0.00% Impervious, Inflow Depth = 0.18" for 10-year event Inflow = 0.01 cfs @ 12.50 hrs, Volume= 0.003 af Outflow = 0.01 cfs @ 13.66 hrs, Volume= 0.003 af, Atten= 4%, Lag= 69.3 min Discarded = 0.01 cfs @ 13.66 hrs, Volume= 0.003 af Primary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-27.99 hrs, dt= 0.03 hrs Peak Elev= 38.00' @ 13.66 hrs Surf.Area= 639 sf Storage= 1 cf Plug-Flow detention time= 3.0 min calculated for 0.003 af (100% of inflow) Center-of-Mass det. time= 3.0 min ( 1,022.2 - 1,019.2 ) Volume Invert Avail.Storage Storage Description #1 38.00' 856 cf Grassed Swale (Irregular) Listed below (Recalc) Elevation Surf.Area Perim. Inc.Store Cum.Store Wet.Area (feet) (sq-ft) (feet) (cubic-feet) (cubic-feet) (sq-ft) 38.00 638 222.0 0 0 638 39.00 1,095 235.0 856 856 1,163 Device Routing Invert Outlet Devices #1 Discarded 38.00'2.410 in/hr Exfiltration over Wetted area Phase-In= 0.01' #2 Primary 38.90'10.0' long (Profile 6) Broad-Crested Rectangular Weir Head (feet) 0.49 0.98 1.48 Coef. (English) 3.12 3.41 3.59 Discarded OutFlow Max=0.01 cfs @ 13.66 hrs HW=38.00' (Free Discharge) 1=Exfiltration (Exfiltration Controls 0.01 cfs) Primary OutFlow Max=0.00 cfs @ 0.00 hrs HW=38.00' TW=0.00' (Dynamic Tailwater) 2=Broad-Crested Rectangular Weir ( Controls 0.00 cfs) Type III 24-hr 10-year Rainfall=4.88"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 75HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Pond S2: Grassed Swale Leaching - S2 Inflow Outflow Discarded Primary Hydrograph Time (hours) 26242220181614121086420Flow (cfs)0.007 0.006 0.005 0.005 0.004 0.004 0.003 0.003 0.002 0.002 0.001 0.001 0.000 0 Inflow Area=0.223 ac Peak Elev=38.00' Storage=1 cf 0.01 cfs 0.01 cfs 0.01 cfs 0.00 cfs Pond S2: Grassed Swale Leaching - S2 Total Discarded Primary Stage-Discharge Discharge (cfs) 10Elevation (feet)39 38 Exfiltration Broad-Crested Rectangular Weir Type III 24-hr 10-year Rainfall=4.88"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 76HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Pond S2: Grassed Swale Leaching - S2 Surface Wetted Storage Stage-Area-Storage Storage (cubic-feet) 8007006005004003002001000 Surface/Horizontal/Wetted Area (sq-ft) 1,0008006004002000 Elevation (feet)39 38 Grassed Swale Type III 24-hr 10-year Rainfall=4.88"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 77HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Hydrograph for Pond S2: Grassed Swale Leaching - S2 Time (hours) Inflow (cfs) Storage (cubic-feet) Elevation (feet) Outflow (cfs) Discarded (cfs) Primary (cfs) 0.00 0.00 0 38.00 0.00 0.00 0.00 0.60 0.00 0 38.00 0.00 0.00 0.00 1.20 0.00 0 38.00 0.00 0.00 0.00 1.80 0.00 0 38.00 0.00 0.00 0.00 2.40 0.00 0 38.00 0.00 0.00 0.00 3.00 0.00 0 38.00 0.00 0.00 0.00 3.60 0.00 0 38.00 0.00 0.00 0.00 4.20 0.00 0 38.00 0.00 0.00 0.00 4.80 0.00 0 38.00 0.00 0.00 0.00 5.40 0.00 0 38.00 0.00 0.00 0.00 6.00 0.00 0 38.00 0.00 0.00 0.00 6.60 0.00 0 38.00 0.00 0.00 0.00 7.20 0.00 0 38.00 0.00 0.00 0.00 7.80 0.00 0 38.00 0.00 0.00 0.00 8.40 0.00 0 38.00 0.00 0.00 0.00 9.00 0.00 0 38.00 0.00 0.00 0.00 9.60 0.00 0 38.00 0.00 0.00 0.00 10.20 0.00 0 38.00 0.00 0.00 0.00 10.80 0.00 0 38.00 0.00 0.00 0.00 11.40 0.00 0 38.00 0.00 0.00 0.00 12.00 0.00 0 38.00 0.00 0.00 0.00 12.60 0.01 1 38.00 0.01 0.01 0.00 13.20 0.01 1 38.00 0.01 0.01 0.00 13.80 0.01 1 38.00 0.01 0.01 0.00 14.40 0.01 1 38.00 0.01 0.01 0.00 15.00 0.01 1 38.00 0.01 0.01 0.00 15.60 0.00 1 38.00 0.00 0.00 0.00 16.20 0.00 1 38.00 0.00 0.00 0.00 16.80 0.00 1 38.00 0.00 0.00 0.00 17.40 0.00 1 38.00 0.00 0.00 0.00 18.00 0.00 1 38.00 0.00 0.00 0.00 18.60 0.00 0 38.00 0.00 0.00 0.00 19.20 0.00 0 38.00 0.00 0.00 0.00 19.80 0.00 0 38.00 0.00 0.00 0.00 20.40 0.00 0 38.00 0.00 0.00 0.00 21.00 0.00 0 38.00 0.00 0.00 0.00 21.60 0.00 0 38.00 0.00 0.00 0.00 22.20 0.00 0 38.00 0.00 0.00 0.00 22.80 0.00 0 38.00 0.00 0.00 0.00 23.40 0.00 0 38.00 0.00 0.00 0.00 24.00 0.00 0 38.00 0.00 0.00 0.00 24.60 0.00 0 38.00 0.00 0.00 0.00 25.20 0.00 0 38.00 0.00 0.00 0.00 25.80 0.00 0 38.00 0.00 0.00 0.00 26.40 0.00 0 38.00 0.00 0.00 0.00 27.00 0.00 0 38.00 0.00 0.00 0.00 27.60 0.00 0 38.00 0.00 0.00 0.00 Type III 24-hr 10-year Rainfall=4.88"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 78HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Stage-Discharge for Pond S2: Grassed Swale Leaching - S2 Elevation (feet) Discharge (cfs) Discarded (cfs) Primary (cfs) 38.00 0.00 0.00 0.00 38.01 0.04 0.04 0.00 38.02 0.04 0.04 0.00 38.03 0.04 0.04 0.00 38.04 0.04 0.04 0.00 38.05 0.04 0.04 0.00 38.06 0.04 0.04 0.00 38.07 0.04 0.04 0.00 38.08 0.04 0.04 0.00 38.09 0.04 0.04 0.00 38.10 0.04 0.04 0.00 38.11 0.04 0.04 0.00 38.12 0.04 0.04 0.00 38.13 0.04 0.04 0.00 38.14 0.04 0.04 0.00 38.15 0.04 0.04 0.00 38.16 0.04 0.04 0.00 38.17 0.04 0.04 0.00 38.18 0.04 0.04 0.00 38.19 0.04 0.04 0.00 38.20 0.04 0.04 0.00 38.21 0.04 0.04 0.00 38.22 0.04 0.04 0.00 38.23 0.04 0.04 0.00 38.24 0.04 0.04 0.00 38.25 0.04 0.04 0.00 38.26 0.04 0.04 0.00 38.27 0.04 0.04 0.00 38.28 0.04 0.04 0.00 38.29 0.04 0.04 0.00 38.30 0.04 0.04 0.00 38.31 0.04 0.04 0.00 38.32 0.04 0.04 0.00 38.33 0.05 0.05 0.00 38.34 0.05 0.05 0.00 38.35 0.05 0.05 0.00 38.36 0.05 0.05 0.00 38.37 0.05 0.05 0.00 38.38 0.05 0.05 0.00 38.39 0.05 0.05 0.00 38.40 0.05 0.05 0.00 38.41 0.05 0.05 0.00 38.42 0.05 0.05 0.00 38.43 0.05 0.05 0.00 38.44 0.05 0.05 0.00 38.45 0.05 0.05 0.00 38.46 0.05 0.05 0.00 38.47 0.05 0.05 0.00 38.48 0.05 0.05 0.00 38.49 0.05 0.05 0.00 38.50 0.05 0.05 0.00 38.51 0.05 0.05 0.00 Elevation (feet) Discharge (cfs) Discarded (cfs) Primary (cfs) 38.52 0.05 0.05 0.00 38.53 0.05 0.05 0.00 38.54 0.05 0.05 0.00 38.55 0.05 0.05 0.00 38.56 0.05 0.05 0.00 38.57 0.05 0.05 0.00 38.58 0.05 0.05 0.00 38.59 0.05 0.05 0.00 38.60 0.05 0.05 0.00 38.61 0.05 0.05 0.00 38.62 0.05 0.05 0.00 38.63 0.05 0.05 0.00 38.64 0.05 0.05 0.00 38.65 0.05 0.05 0.00 38.66 0.05 0.05 0.00 38.67 0.06 0.06 0.00 38.68 0.06 0.06 0.00 38.69 0.06 0.06 0.00 38.70 0.06 0.06 0.00 38.71 0.06 0.06 0.00 38.72 0.06 0.06 0.00 38.73 0.06 0.06 0.00 38.74 0.06 0.06 0.00 38.75 0.06 0.06 0.00 38.76 0.06 0.06 0.00 38.77 0.06 0.06 0.00 38.78 0.06 0.06 0.00 38.79 0.06 0.06 0.00 38.80 0.06 0.06 0.00 38.81 0.06 0.06 0.00 38.82 0.06 0.06 0.00 38.83 0.06 0.06 0.00 38.84 0.06 0.06 0.00 38.85 0.06 0.06 0.00 38.86 0.06 0.06 0.00 38.87 0.06 0.06 0.00 38.88 0.06 0.06 0.00 38.89 0.06 0.06 0.00 38.90 0.06 0.06 0.00 38.91 0.09 0.06 0.03 38.92 0.15 0.06 0.09 38.93 0.22 0.06 0.16 38.94 0.31 0.06 0.25 38.95 0.41 0.06 0.35 38.96 0.52 0.06 0.46 38.97 0.64 0.06 0.58 38.98 0.77 0.06 0.71 38.99 0.91 0.06 0.84 39.00 1.05 0.06 0.99 Type III 24-hr 10-year Rainfall=4.88"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 79HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond S2: Grassed Swale Leaching - S2 Elevation (feet) Surface (sq-ft) Wetted (sq-ft) Storage (cubic-feet) 38.00 638 638 0 38.01 642 643 6 38.02 646 648 13 38.03 650 653 19 38.04 654 658 26 38.05 658 664 32 38.06 662 669 39 38.07 666 674 46 38.08 670 679 52 38.09 674 684 59 38.10 678 689 66 38.11 682 694 73 38.12 686 699 79 38.13 690 705 86 38.14 695 710 93 38.15 699 715 100 38.16 703 720 107 38.17 707 725 114 38.18 711 730 121 38.19 715 735 129 38.20 720 741 136 38.21 724 746 143 38.22 728 751 150 38.23 732 756 157 38.24 736 761 165 38.25 741 766 172 38.26 745 772 180 38.27 749 777 187 38.28 754 782 195 38.29 758 787 202 38.30 762 792 210 38.31 767 798 217 38.32 771 803 225 38.33 775 808 233 38.34 780 813 241 38.35 784 818 248 38.36 788 824 256 38.37 793 829 264 38.38 797 834 272 38.39 802 839 280 38.40 806 844 288 38.41 811 850 296 38.42 815 855 304 38.43 819 860 313 38.44 824 865 321 38.45 828 871 329 38.46 833 876 337 38.47 838 881 346 38.48 842 886 354 38.49 847 892 363 38.50 851 897 371 38.51 856 902 380 Elevation (feet) Surface (sq-ft) Wetted (sq-ft) Storage (cubic-feet) 38.52 860 907 388 38.53 865 913 397 38.54 870 918 405 38.55 874 923 414 38.56 879 928 423 38.57 883 934 432 38.58 888 939 441 38.59 893 944 449 38.60 897 949 458 38.61 902 955 467 38.62 907 960 476 38.63 912 965 486 38.64 916 971 495 38.65 921 976 504 38.66 926 981 513 38.67 931 987 522 38.68 935 992 532 38.69 940 997 541 38.70 945 1,002 551 38.71 950 1,008 560 38.72 955 1,013 570 38.73 960 1,018 579 38.74 964 1,024 589 38.75 969 1,029 598 38.76 974 1,034 608 38.77 979 1,040 618 38.78 984 1,045 628 38.79 989 1,050 638 38.80 994 1,056 647 38.81 999 1,061 657 38.82 1,004 1,066 667 38.83 1,009 1,072 678 38.84 1,014 1,077 688 38.85 1,019 1,082 698 38.86 1,024 1,088 708 38.87 1,029 1,093 718 38.88 1,034 1,099 729 38.89 1,039 1,104 739 38.90 1,044 1,109 749 38.91 1,049 1,115 760 38.92 1,054 1,120 770 38.93 1,059 1,125 781 38.94 1,064 1,131 792 38.95 1,069 1,136 802 38.96 1,074 1,142 813 38.97 1,080 1,147 824 38.98 1,085 1,152 834 38.99 1,090 1,158 845 39.00 1,095 1,163 856 Type III 24-hr 10-year Rainfall=4.88"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 80HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Summary for Pond S3: Grassed Swale Leaching - S3 Inflow Area = 1.713 ac, 3.89% Impervious, Inflow Depth = 0.21" for 10-year event Inflow = 0.07 cfs @ 12.53 hrs, Volume= 0.030 af Outflow = 0.07 cfs @ 12.58 hrs, Volume= 0.030 af, Atten= 4%, Lag= 3.3 min Discarded = 0.07 cfs @ 12.58 hrs, Volume= 0.030 af Primary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-27.99 hrs, dt= 0.03 hrs Peak Elev= 28.01' @ 12.58 hrs Surf.Area= 2,009 sf Storage= 12 cf Plug-Flow detention time= 3.0 min calculated for 0.030 af (100% of inflow) Center-of-Mass det. time= 3.0 min ( 1,011.4 - 1,008.4 ) Volume Invert Avail.Storage Storage Description #1 28.00' 5,894 cf Grassed Swale (Irregular) Listed below (Recalc) Elevation Surf.Area Perim. Inc.Store Cum.Store Wet.Area (feet) (sq-ft) (feet) (cubic-feet) (cubic-feet) (sq-ft) 28.00 2,004 189.0 0 0 2,004 30.00 4,004 312.0 5,894 5,894 6,933 Device Routing Invert Outlet Devices #1 Discarded 28.00'2.410 in/hr Exfiltration over Wetted area Phase-In= 0.01' #2 Primary 29.90'10.0' long (Profile 6) Broad-Crested Rectangular Weir Head (feet) 0.49 0.98 1.48 Coef. (English) 3.12 3.41 3.59 Discarded OutFlow Max=0.07 cfs @ 12.58 hrs HW=28.01' (Free Discharge) 1=Exfiltration (Exfiltration Controls 0.07 cfs) Primary OutFlow Max=0.00 cfs @ 0.00 hrs HW=28.00' TW=0.00' (Dynamic Tailwater) 2=Broad-Crested Rectangular Weir ( Controls 0.00 cfs) Type III 24-hr 10-year Rainfall=4.88"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 81HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Pond S3: Grassed Swale Leaching - S3 Inflow Outflow Discarded Primary Hydrograph Time (hours) 26242220181614121086420Flow (cfs)0.075 0.07 0.065 0.06 0.055 0.05 0.045 0.04 0.035 0.03 0.025 0.02 0.015 0.01 0.005 0 Inflow Area=1.713 ac Peak Elev=28.01' Storage=12 cf 0.07 cfs 0.07 cfs 0.07 cfs 0.00 cfs Pond S3: Grassed Swale Leaching - S3 Total Discarded Primary Stage-Discharge Discharge (cfs) 10Elevation (feet)30 29 28 Exfiltration Broad-Crested Rectangular Weir Type III 24-hr 10-year Rainfall=4.88"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 82HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Pond S3: Grassed Swale Leaching - S3 Surface Wetted Storage Stage-Area-Storage Storage (cubic-feet) 5,5005,0004,5004,0003,5003,0002,5002,0001,5001,0005000 Surface/Horizontal/Wetted Area (sq-ft) 6,0005,0004,0003,0002,0001,0000 Elevation (feet)30 29 28 Grassed Swale Type III 24-hr 10-year Rainfall=4.88"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 83HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Hydrograph for Pond S3: Grassed Swale Leaching - S3 Time (hours) Inflow (cfs) Storage (cubic-feet) Elevation (feet) Outflow (cfs) Discarded (cfs) Primary (cfs) 0.00 0.00 0 28.00 0.00 0.00 0.00 0.60 0.00 0 28.00 0.00 0.00 0.00 1.20 0.00 0 28.00 0.00 0.00 0.00 1.80 0.00 0 28.00 0.00 0.00 0.00 2.40 0.00 0 28.00 0.00 0.00 0.00 3.00 0.00 0 28.00 0.00 0.00 0.00 3.60 0.00 0 28.00 0.00 0.00 0.00 4.20 0.00 0 28.00 0.00 0.00 0.00 4.80 0.00 0 28.00 0.00 0.00 0.00 5.40 0.00 0 28.00 0.00 0.00 0.00 6.00 0.00 0 28.00 0.00 0.00 0.00 6.60 0.00 0 28.00 0.00 0.00 0.00 7.20 0.00 0 28.00 0.00 0.00 0.00 7.80 0.00 0 28.00 0.00 0.00 0.00 8.40 0.00 0 28.00 0.00 0.00 0.00 9.00 0.00 0 28.00 0.00 0.00 0.00 9.60 0.00 0 28.00 0.00 0.00 0.00 10.20 0.00 0 28.00 0.00 0.00 0.00 10.80 0.00 0 28.00 0.00 0.00 0.00 11.40 0.00 0 28.00 0.00 0.00 0.00 12.00 0.00 0 28.00 0.00 0.00 0.00 12.60 0.07 12 28.01 0.07 0.07 0.00 13.20 0.05 9 28.00 0.05 0.05 0.00 13.80 0.05 9 28.00 0.05 0.05 0.00 14.40 0.05 9 28.00 0.05 0.05 0.00 15.00 0.05 8 28.00 0.05 0.05 0.00 15.60 0.04 7 28.00 0.04 0.04 0.00 16.20 0.03 6 28.00 0.03 0.03 0.00 16.80 0.03 6 28.00 0.03 0.03 0.00 17.40 0.03 5 28.00 0.03 0.03 0.00 18.00 0.02 4 28.00 0.03 0.03 0.00 18.60 0.02 4 28.00 0.02 0.02 0.00 19.20 0.02 4 28.00 0.02 0.02 0.00 19.80 0.02 4 28.00 0.02 0.02 0.00 20.40 0.02 4 28.00 0.02 0.02 0.00 21.00 0.02 4 28.00 0.02 0.02 0.00 21.60 0.02 3 28.00 0.02 0.02 0.00 22.20 0.02 3 28.00 0.02 0.02 0.00 22.80 0.02 3 28.00 0.02 0.02 0.00 23.40 0.02 3 28.00 0.02 0.02 0.00 24.00 0.02 3 28.00 0.02 0.02 0.00 24.60 0.00 0 28.00 0.00 0.00 0.00 25.20 0.00 0 28.00 0.00 0.00 0.00 25.80 0.00 0 28.00 0.00 0.00 0.00 26.40 0.00 0 28.00 0.00 0.00 0.00 27.00 0.00 0 28.00 0.00 0.00 0.00 27.60 0.00 0 28.00 0.00 0.00 0.00 Type III 24-hr 10-year Rainfall=4.88"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 84HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Stage-Discharge for Pond S3: Grassed Swale Leaching - S3 Elevation (feet) Discharge (cfs) Discarded (cfs) Primary (cfs) 28.00 0.00 0.00 0.00 28.02 0.11 0.11 0.00 28.04 0.12 0.12 0.00 28.06 0.12 0.12 0.00 28.08 0.12 0.12 0.00 28.10 0.12 0.12 0.00 28.12 0.12 0.12 0.00 28.14 0.13 0.13 0.00 28.16 0.13 0.13 0.00 28.18 0.13 0.13 0.00 28.20 0.13 0.13 0.00 28.22 0.14 0.14 0.00 28.24 0.14 0.14 0.00 28.26 0.14 0.14 0.00 28.28 0.14 0.14 0.00 28.30 0.14 0.14 0.00 28.32 0.15 0.15 0.00 28.34 0.15 0.15 0.00 28.36 0.15 0.15 0.00 28.38 0.15 0.15 0.00 28.40 0.16 0.16 0.00 28.42 0.16 0.16 0.00 28.44 0.16 0.16 0.00 28.46 0.16 0.16 0.00 28.48 0.17 0.17 0.00 28.50 0.17 0.17 0.00 28.52 0.17 0.17 0.00 28.54 0.17 0.17 0.00 28.56 0.18 0.18 0.00 28.58 0.18 0.18 0.00 28.60 0.18 0.18 0.00 28.62 0.18 0.18 0.00 28.64 0.19 0.19 0.00 28.66 0.19 0.19 0.00 28.68 0.19 0.19 0.00 28.70 0.19 0.19 0.00 28.72 0.20 0.20 0.00 28.74 0.20 0.20 0.00 28.76 0.20 0.20 0.00 28.78 0.20 0.20 0.00 28.80 0.21 0.21 0.00 28.82 0.21 0.21 0.00 28.84 0.21 0.21 0.00 28.86 0.21 0.21 0.00 28.88 0.22 0.22 0.00 28.90 0.22 0.22 0.00 28.92 0.22 0.22 0.00 28.94 0.22 0.22 0.00 28.96 0.23 0.23 0.00 28.98 0.23 0.23 0.00 29.00 0.23 0.23 0.00 29.02 0.24 0.24 0.00 Elevation (feet) Discharge (cfs) Discarded (cfs) Primary (cfs) 29.04 0.24 0.24 0.00 29.06 0.24 0.24 0.00 29.08 0.24 0.24 0.00 29.10 0.25 0.25 0.00 29.12 0.25 0.25 0.00 29.14 0.25 0.25 0.00 29.16 0.25 0.25 0.00 29.18 0.26 0.26 0.00 29.20 0.26 0.26 0.00 29.22 0.26 0.26 0.00 29.24 0.27 0.27 0.00 29.26 0.27 0.27 0.00 29.28 0.27 0.27 0.00 29.30 0.28 0.28 0.00 29.32 0.28 0.28 0.00 29.34 0.28 0.28 0.00 29.36 0.28 0.28 0.00 29.38 0.29 0.29 0.00 29.40 0.29 0.29 0.00 29.42 0.29 0.29 0.00 29.44 0.30 0.30 0.00 29.46 0.30 0.30 0.00 29.48 0.30 0.30 0.00 29.50 0.31 0.31 0.00 29.52 0.31 0.31 0.00 29.54 0.31 0.31 0.00 29.56 0.31 0.31 0.00 29.58 0.32 0.32 0.00 29.60 0.32 0.32 0.00 29.62 0.32 0.32 0.00 29.64 0.33 0.33 0.00 29.66 0.33 0.33 0.00 29.68 0.33 0.33 0.00 29.70 0.34 0.34 0.00 29.72 0.34 0.34 0.00 29.74 0.34 0.34 0.00 29.76 0.35 0.35 0.00 29.78 0.35 0.35 0.00 29.80 0.35 0.35 0.00 29.82 0.36 0.36 0.00 29.84 0.36 0.36 0.00 29.86 0.36 0.36 0.00 29.88 0.37 0.37 0.00 29.90 0.37 0.37 0.00 29.92 0.46 0.37 0.09 29.94 0.63 0.38 0.25 29.96 0.84 0.38 0.46 29.98 1.09 0.38 0.71 30.00 1.37 0.39 0.99 Type III 24-hr 10-year Rainfall=4.88"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 85HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond S3: Grassed Swale Leaching - S3 Elevation (feet) Surface (sq-ft) Wetted (sq-ft) Storage (cubic-feet) 28.00 2,004 2,004 0 28.02 2,021 2,041 40 28.04 2,037 2,079 81 28.06 2,054 2,117 122 28.08 2,071 2,155 163 28.10 2,088 2,193 205 28.12 2,105 2,232 246 28.14 2,122 2,270 289 28.16 2,139 2,309 331 28.18 2,156 2,349 374 28.20 2,173 2,388 418 28.22 2,190 2,428 461 28.24 2,208 2,468 505 28.26 2,225 2,508 550 28.28 2,243 2,548 594 28.30 2,260 2,589 639 28.32 2,278 2,630 685 28.34 2,296 2,671 730 28.36 2,313 2,713 776 28.38 2,331 2,754 823 28.40 2,349 2,796 870 28.42 2,367 2,838 917 28.44 2,385 2,881 964 28.46 2,403 2,923 1,012 28.48 2,421 2,966 1,061 28.50 2,440 3,009 1,109 28.52 2,458 3,053 1,158 28.54 2,476 3,096 1,207 28.56 2,495 3,140 1,257 28.58 2,513 3,184 1,307 28.60 2,532 3,229 1,358 28.62 2,551 3,273 1,409 28.64 2,569 3,318 1,460 28.66 2,588 3,363 1,511 28.68 2,607 3,408 1,563 28.70 2,626 3,454 1,616 28.72 2,645 3,500 1,668 28.74 2,664 3,546 1,721 28.76 2,683 3,592 1,775 28.78 2,702 3,639 1,829 28.80 2,722 3,685 1,883 28.82 2,741 3,732 1,938 28.84 2,761 3,780 1,993 28.86 2,780 3,827 2,048 28.88 2,800 3,875 2,104 28.90 2,819 3,923 2,160 28.92 2,839 3,971 2,217 28.94 2,859 4,019 2,274 28.96 2,878 4,068 2,331 28.98 2,898 4,117 2,389 29.00 2,918 4,166 2,447 29.02 2,938 4,216 2,505 Elevation (feet) Surface (sq-ft) Wetted (sq-ft) Storage (cubic-feet) 29.04 2,958 4,265 2,564 29.06 2,979 4,315 2,624 29.08 2,999 4,365 2,684 29.10 3,019 4,416 2,744 29.12 3,040 4,466 2,804 29.14 3,060 4,517 2,865 29.16 3,081 4,568 2,927 29.18 3,101 4,620 2,989 29.20 3,122 4,671 3,051 29.22 3,142 4,723 3,113 29.24 3,163 4,775 3,176 29.26 3,184 4,827 3,240 29.28 3,205 4,880 3,304 29.30 3,226 4,933 3,368 29.32 3,247 4,986 3,433 29.34 3,268 5,039 3,498 29.36 3,289 5,093 3,564 29.38 3,311 5,146 3,630 29.40 3,332 5,200 3,696 29.42 3,353 5,255 3,763 29.44 3,375 5,309 3,830 29.46 3,396 5,364 3,898 29.48 3,418 5,419 3,966 29.50 3,440 5,474 4,035 29.52 3,461 5,530 4,104 29.54 3,483 5,585 4,173 29.56 3,505 5,641 4,243 29.58 3,527 5,697 4,313 29.60 3,549 5,754 4,384 29.62 3,571 5,811 4,455 29.64 3,593 5,867 4,527 29.66 3,616 5,925 4,599 29.68 3,638 5,982 4,672 29.70 3,660 6,040 4,745 29.72 3,683 6,098 4,818 29.74 3,705 6,156 4,892 29.76 3,728 6,214 4,966 29.78 3,750 6,273 5,041 29.80 3,773 6,331 5,116 29.82 3,796 6,391 5,192 29.84 3,819 6,450 5,268 29.86 3,842 6,509 5,345 29.88 3,865 6,569 5,422 29.90 3,888 6,629 5,499 29.92 3,911 6,690 5,577 29.94 3,934 6,750 5,656 29.96 3,957 6,811 5,735 29.98 3,981 6,872 5,814 30.00 4,004 6,933 5,894 Type III 24-hr 10-year Rainfall=4.88"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 86HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Summary for Pond S4: Grassed Swale Leaching - S4 Inflow Area = 0.065 ac, 27.81% Impervious, Inflow Depth = 0.92" for 10-year event Inflow = 0.05 cfs @ 12.11 hrs, Volume= 0.005 af Outflow = 0.02 cfs @ 12.56 hrs, Volume= 0.005 af, Atten= 71%, Lag= 27.0 min Discarded = 0.02 cfs @ 12.56 hrs, Volume= 0.005 af Primary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-27.99 hrs, dt= 0.03 hrs Peak Elev= 56.16' @ 12.56 hrs Surf.Area= 275 sf Storage= 41 cf Plug-Flow detention time= 16.2 min calculated for 0.005 af (100% of inflow) Center-of-Mass det. time= 16.1 min ( 911.2 - 895.0 ) Volume Invert Avail.Storage Storage Description #1 56.00' 342 cf Grassed Swale (Irregular) Listed below (Recalc) Elevation Surf.Area Perim. Inc.Store Cum.Store Wet.Area (feet) (sq-ft) (feet) (cubic-feet) (cubic-feet) (sq-ft) 56.00 248 92.0 0 0 248 57.00 446 105.0 342 342 474 Device Routing Invert Outlet Devices #1 Discarded 56.00'2.410 in/hr Exfiltration over Wetted area Phase-In= 0.01' #2 Primary 56.90'10.0' long (Profile 6) Broad-Crested Rectangular Weir Head (feet) 0.49 0.98 1.48 Coef. (English) 3.12 3.41 3.59 Discarded OutFlow Max=0.02 cfs @ 12.56 hrs HW=56.16' (Free Discharge) 1=Exfiltration (Exfiltration Controls 0.02 cfs) Primary OutFlow Max=0.00 cfs @ 0.00 hrs HW=56.00' TW=0.00' (Dynamic Tailwater) 2=Broad-Crested Rectangular Weir ( Controls 0.00 cfs) Type III 24-hr 10-year Rainfall=4.88"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 87HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Pond S4: Grassed Swale Leaching - S4 Inflow Outflow Discarded Primary Hydrograph Time (hours) 26242220181614121086420Flow (cfs)0.06 0.055 0.05 0.045 0.04 0.035 0.03 0.025 0.02 0.015 0.01 0.005 0 Inflow Area=0.065 ac Peak Elev=56.16' Storage=41 cf 0.05 cfs 0.02 cfs 0.02 cfs 0.00 cfs Pond S4: Grassed Swale Leaching - S4 Total Discarded Primary Stage-Discharge Discharge (cfs) 10Elevation (feet)57 56 Exfiltration Broad-Crested Rectangular Weir Type III 24-hr 10-year Rainfall=4.88"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 88HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Pond S4: Grassed Swale Leaching - S4 Surface Wetted Storage Stage-Area-Storage Storage (cubic-feet) 300250200150100500 Surface/Horizontal/Wetted Area (sq-ft) 450400350300250200150100500 Elevation (feet)57 56 Grassed Swale Type III 24-hr 10-year Rainfall=4.88"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 89HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Hydrograph for Pond S4: Grassed Swale Leaching - S4 Time (hours) Inflow (cfs) Storage (cubic-feet) Elevation (feet) Outflow (cfs) Discarded (cfs) Primary (cfs) 0.00 0.00 0 56.00 0.00 0.00 0.00 0.60 0.00 0 56.00 0.00 0.00 0.00 1.20 0.00 0 56.00 0.00 0.00 0.00 1.80 0.00 0 56.00 0.00 0.00 0.00 2.40 0.00 0 56.00 0.00 0.00 0.00 3.00 0.00 0 56.00 0.00 0.00 0.00 3.60 0.00 0 56.00 0.00 0.00 0.00 4.20 0.00 0 56.00 0.00 0.00 0.00 4.80 0.00 0 56.00 0.00 0.00 0.00 5.40 0.00 0 56.00 0.00 0.00 0.00 6.00 0.00 0 56.00 0.00 0.00 0.00 6.60 0.00 0 56.00 0.00 0.00 0.00 7.20 0.00 0 56.00 0.00 0.00 0.00 7.80 0.00 0 56.00 0.00 0.00 0.00 8.40 0.00 0 56.00 0.00 0.00 0.00 9.00 0.00 0 56.00 0.00 0.00 0.00 9.60 0.00 0 56.00 0.00 0.00 0.00 10.20 0.00 0 56.00 0.00 0.00 0.00 10.80 0.00 0 56.00 0.00 0.00 0.00 11.40 0.00 0 56.00 0.00 0.00 0.00 12.00 0.02 2 56.01 0.01 0.01 0.00 12.60 0.01 40 56.15 0.02 0.02 0.00 13.20 0.01 29 56.11 0.02 0.02 0.00 13.80 0.01 13 56.05 0.01 0.01 0.00 14.40 0.01 1 56.00 0.01 0.01 0.00 15.00 0.01 1 56.00 0.01 0.01 0.00 15.60 0.00 1 56.00 0.00 0.00 0.00 16.20 0.00 1 56.00 0.00 0.00 0.00 16.80 0.00 1 56.00 0.00 0.00 0.00 17.40 0.00 1 56.00 0.00 0.00 0.00 18.00 0.00 0 56.00 0.00 0.00 0.00 18.60 0.00 0 56.00 0.00 0.00 0.00 19.20 0.00 0 56.00 0.00 0.00 0.00 19.80 0.00 0 56.00 0.00 0.00 0.00 20.40 0.00 0 56.00 0.00 0.00 0.00 21.00 0.00 0 56.00 0.00 0.00 0.00 21.60 0.00 0 56.00 0.00 0.00 0.00 22.20 0.00 0 56.00 0.00 0.00 0.00 22.80 0.00 0 56.00 0.00 0.00 0.00 23.40 0.00 0 56.00 0.00 0.00 0.00 24.00 0.00 0 56.00 0.00 0.00 0.00 24.60 0.00 0 56.00 0.00 0.00 0.00 25.20 0.00 0 56.00 0.00 0.00 0.00 25.80 0.00 0 56.00 0.00 0.00 0.00 26.40 0.00 0 56.00 0.00 0.00 0.00 27.00 0.00 0 56.00 0.00 0.00 0.00 27.60 0.00 0 56.00 0.00 0.00 0.00 Type III 24-hr 10-year Rainfall=4.88"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 90HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Stage-Discharge for Pond S4: Grassed Swale Leaching - S4 Elevation (feet) Discharge (cfs) Discarded (cfs) Primary (cfs) 56.00 0.00 0.00 0.00 56.01 0.01 0.01 0.00 56.02 0.01 0.01 0.00 56.03 0.01 0.01 0.00 56.04 0.01 0.01 0.00 56.05 0.01 0.01 0.00 56.06 0.01 0.01 0.00 56.07 0.01 0.01 0.00 56.08 0.01 0.01 0.00 56.09 0.01 0.01 0.00 56.10 0.02 0.02 0.00 56.11 0.02 0.02 0.00 56.12 0.02 0.02 0.00 56.13 0.02 0.02 0.00 56.14 0.02 0.02 0.00 56.15 0.02 0.02 0.00 56.16 0.02 0.02 0.00 56.17 0.02 0.02 0.00 56.18 0.02 0.02 0.00 56.19 0.02 0.02 0.00 56.20 0.02 0.02 0.00 56.21 0.02 0.02 0.00 56.22 0.02 0.02 0.00 56.23 0.02 0.02 0.00 56.24 0.02 0.02 0.00 56.25 0.02 0.02 0.00 56.26 0.02 0.02 0.00 56.27 0.02 0.02 0.00 56.28 0.02 0.02 0.00 56.29 0.02 0.02 0.00 56.30 0.02 0.02 0.00 56.31 0.02 0.02 0.00 56.32 0.02 0.02 0.00 56.33 0.02 0.02 0.00 56.34 0.02 0.02 0.00 56.35 0.02 0.02 0.00 56.36 0.02 0.02 0.00 56.37 0.02 0.02 0.00 56.38 0.02 0.02 0.00 56.39 0.02 0.02 0.00 56.40 0.02 0.02 0.00 56.41 0.02 0.02 0.00 56.42 0.02 0.02 0.00 56.43 0.02 0.02 0.00 56.44 0.02 0.02 0.00 56.45 0.02 0.02 0.00 56.46 0.02 0.02 0.00 56.47 0.02 0.02 0.00 56.48 0.02 0.02 0.00 56.49 0.02 0.02 0.00 56.50 0.02 0.02 0.00 56.51 0.02 0.02 0.00 Elevation (feet) Discharge (cfs) Discarded (cfs) Primary (cfs) 56.52 0.02 0.02 0.00 56.53 0.02 0.02 0.00 56.54 0.02 0.02 0.00 56.55 0.02 0.02 0.00 56.56 0.02 0.02 0.00 56.57 0.02 0.02 0.00 56.58 0.02 0.02 0.00 56.59 0.02 0.02 0.00 56.60 0.02 0.02 0.00 56.61 0.02 0.02 0.00 56.62 0.02 0.02 0.00 56.63 0.02 0.02 0.00 56.64 0.02 0.02 0.00 56.65 0.02 0.02 0.00 56.66 0.02 0.02 0.00 56.67 0.02 0.02 0.00 56.68 0.02 0.02 0.00 56.69 0.02 0.02 0.00 56.70 0.02 0.02 0.00 56.71 0.02 0.02 0.00 56.72 0.02 0.02 0.00 56.73 0.02 0.02 0.00 56.74 0.02 0.02 0.00 56.75 0.02 0.02 0.00 56.76 0.02 0.02 0.00 56.77 0.02 0.02 0.00 56.78 0.02 0.02 0.00 56.79 0.02 0.02 0.00 56.80 0.02 0.02 0.00 56.81 0.02 0.02 0.00 56.82 0.02 0.02 0.00 56.83 0.02 0.02 0.00 56.84 0.02 0.02 0.00 56.85 0.02 0.02 0.00 56.86 0.02 0.02 0.00 56.87 0.02 0.02 0.00 56.88 0.02 0.02 0.00 56.89 0.02 0.02 0.00 56.90 0.03 0.03 0.00 56.91 0.06 0.03 0.03 56.92 0.11 0.03 0.09 56.93 0.19 0.03 0.16 56.94 0.28 0.03 0.25 56.95 0.37 0.03 0.35 56.96 0.48 0.03 0.46 56.97 0.60 0.03 0.58 56.98 0.73 0.03 0.71 56.99 0.87 0.03 0.84 57.00 1.01 0.03 0.99 Type III 24-hr 10-year Rainfall=4.88"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 91HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond S4: Grassed Swale Leaching - S4 Elevation (feet) Surface (sq-ft) Wetted (sq-ft) Storage (cubic-feet) 56.00 248 248 0 56.01 250 250 2 56.02 251 252 5 56.03 253 254 8 56.04 255 256 10 56.05 257 259 13 56.06 258 261 15 56.07 260 263 18 56.08 262 265 20 56.09 263 267 23 56.10 265 269 26 56.11 267 271 28 56.12 269 274 31 56.13 270 276 34 56.14 272 278 36 56.15 274 280 39 56.16 276 282 42 56.17 278 284 45 56.18 279 287 47 56.19 281 289 50 56.20 283 291 53 56.21 285 293 56 56.22 287 295 59 56.23 288 297 62 56.24 290 300 65 56.25 292 302 67 56.26 294 304 70 56.27 296 306 73 56.28 298 308 76 56.29 299 311 79 56.30 301 313 82 56.31 303 315 85 56.32 305 317 88 56.33 307 319 91 56.34 309 322 94 56.35 311 324 98 56.36 313 326 101 56.37 315 328 104 56.38 316 330 107 56.39 318 333 110 56.40 320 335 113 56.41 322 337 117 56.42 324 339 120 56.43 326 342 123 56.44 328 344 126 56.45 330 346 130 56.46 332 348 133 56.47 334 351 136 56.48 336 353 140 56.49 338 355 143 56.50 340 357 146 56.51 342 360 150 Elevation (feet) Surface (sq-ft) Wetted (sq-ft) Storage (cubic-feet) 56.52 344 362 153 56.53 346 364 157 56.54 348 367 160 56.55 350 369 164 56.56 352 371 167 56.57 354 373 171 56.58 356 376 174 56.59 358 378 178 56.60 360 380 181 56.61 362 383 185 56.62 364 385 189 56.63 366 387 192 56.64 368 389 196 56.65 370 392 200 56.66 372 394 203 56.67 374 396 207 56.68 376 399 211 56.69 378 401 215 56.70 381 403 218 56.71 383 406 222 56.72 385 408 226 56.73 387 410 230 56.74 389 413 234 56.75 391 415 238 56.76 393 417 242 56.77 395 420 245 56.78 397 422 249 56.79 400 424 253 56.80 402 427 257 56.81 404 429 261 56.82 406 431 266 56.83 408 434 270 56.84 410 436 274 56.85 413 438 278 56.86 415 441 282 56.87 417 443 286 56.88 419 446 290 56.89 421 448 294 56.90 424 450 299 56.91 426 453 303 56.92 428 455 307 56.93 430 458 312 56.94 432 460 316 56.95 435 462 320 56.96 437 465 325 56.97 439 467 329 56.98 441 470 333 56.99 444 472 338 57.00 446 474 342 Type III 24-hr 10-year Rainfall=4.88"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 92HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Summary for Pond S5: Grassed Swale Leaching - S5 Inflow Area = 0.521 ac, 5.97% Impervious, Inflow Depth = 0.28" for 10-year event Inflow = 0.05 cfs @ 12.40 hrs, Volume= 0.012 af Outflow = 0.04 cfs @ 12.50 hrs, Volume= 0.012 af, Atten= 13%, Lag= 6.1 min Discarded = 0.04 cfs @ 12.50 hrs, Volume= 0.012 af Primary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-27.99 hrs, dt= 0.03 hrs Peak Elev= 48.01' @ 12.50 hrs Surf.Area= 724 sf Storage= 9 cf Plug-Flow detention time= 3.0 min calculated for 0.012 af (100% of inflow) Center-of-Mass det. time= 3.0 min ( 982.5 - 979.5 ) Volume Invert Avail.Storage Storage Description #1 48.00' 849 cf Grassed Swale (Irregular) Listed below (Recalc) Elevation Surf.Area Perim. Inc.Store Cum.Store Wet.Area (feet) (sq-ft) (feet) (cubic-feet) (cubic-feet) (sq-ft) 48.00 721 125.0 0 0 721 49.00 983 137.0 849 849 1,003 Device Routing Invert Outlet Devices #1 Discarded 48.00'2.410 in/hr Exfiltration over Wetted area Phase-In= 0.01' #2 Primary 48.90'10.0' long (Profile 6) Broad-Crested Rectangular Weir Head (feet) 0.49 0.98 1.48 Coef. (English) 3.12 3.41 3.59 Discarded OutFlow Max=0.04 cfs @ 12.50 hrs HW=48.01' (Free Discharge) 1=Exfiltration (Exfiltration Controls 0.04 cfs) Primary OutFlow Max=0.00 cfs @ 0.00 hrs HW=48.00' TW=0.00' (Dynamic Tailwater) 2=Broad-Crested Rectangular Weir ( Controls 0.00 cfs) Type III 24-hr 10-year Rainfall=4.88"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 93HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Pond S5: Grassed Swale Leaching - S5 Inflow Outflow Discarded Primary Hydrograph Time (hours) 26242220181614121086420Flow (cfs)0.05 0.045 0.04 0.035 0.03 0.025 0.02 0.015 0.01 0.005 0 Inflow Area=0.521 ac Peak Elev=48.01' Storage=9 cf 0.05 cfs 0.04 cfs 0.04 cfs 0.00 cfs Pond S5: Grassed Swale Leaching - S5 Total Discarded Primary Stage-Discharge Discharge (cfs) 10Elevation (feet)49 48 Exfiltration Broad-Crested Rectangular Weir Type III 24-hr 10-year Rainfall=4.88"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 94HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Pond S5: Grassed Swale Leaching - S5 Surface Wetted Storage Stage-Area-Storage Storage (cubic-feet) 8007006005004003002001000 Surface/Horizontal/Wetted Area (sq-ft) 1,0009008007006005004003002001000 Elevation (feet)49 48 Grassed Swale Type III 24-hr 10-year Rainfall=4.88"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 95HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Hydrograph for Pond S5: Grassed Swale Leaching - S5 Time (hours) Inflow (cfs) Storage (cubic-feet) Elevation (feet) Outflow (cfs) Discarded (cfs) Primary (cfs) 0.00 0.00 0 48.00 0.00 0.00 0.00 0.60 0.00 0 48.00 0.00 0.00 0.00 1.20 0.00 0 48.00 0.00 0.00 0.00 1.80 0.00 0 48.00 0.00 0.00 0.00 2.40 0.00 0 48.00 0.00 0.00 0.00 3.00 0.00 0 48.00 0.00 0.00 0.00 3.60 0.00 0 48.00 0.00 0.00 0.00 4.20 0.00 0 48.00 0.00 0.00 0.00 4.80 0.00 0 48.00 0.00 0.00 0.00 5.40 0.00 0 48.00 0.00 0.00 0.00 6.00 0.00 0 48.00 0.00 0.00 0.00 6.60 0.00 0 48.00 0.00 0.00 0.00 7.20 0.00 0 48.00 0.00 0.00 0.00 7.80 0.00 0 48.00 0.00 0.00 0.00 8.40 0.00 0 48.00 0.00 0.00 0.00 9.00 0.00 0 48.00 0.00 0.00 0.00 9.60 0.00 0 48.00 0.00 0.00 0.00 10.20 0.00 0 48.00 0.00 0.00 0.00 10.80 0.00 0 48.00 0.00 0.00 0.00 11.40 0.00 0 48.00 0.00 0.00 0.00 12.00 0.00 0 48.00 0.00 0.00 0.00 12.60 0.03 7 48.01 0.04 0.04 0.00 13.20 0.02 4 48.01 0.02 0.02 0.00 13.80 0.02 4 48.01 0.02 0.02 0.00 14.40 0.02 3 48.00 0.02 0.02 0.00 15.00 0.02 3 48.00 0.02 0.02 0.00 15.60 0.02 3 48.00 0.02 0.02 0.00 16.20 0.01 2 48.00 0.01 0.01 0.00 16.80 0.01 2 48.00 0.01 0.01 0.00 17.40 0.01 2 48.00 0.01 0.01 0.00 18.00 0.01 2 48.00 0.01 0.01 0.00 18.60 0.01 2 48.00 0.01 0.01 0.00 19.20 0.01 1 48.00 0.01 0.01 0.00 19.80 0.01 1 48.00 0.01 0.01 0.00 20.40 0.01 1 48.00 0.01 0.01 0.00 21.00 0.01 1 48.00 0.01 0.01 0.00 21.60 0.01 1 48.00 0.01 0.01 0.00 22.20 0.01 1 48.00 0.01 0.01 0.00 22.80 0.01 1 48.00 0.01 0.01 0.00 23.40 0.01 1 48.00 0.01 0.01 0.00 24.00 0.01 1 48.00 0.01 0.01 0.00 24.60 0.00 0 48.00 0.00 0.00 0.00 25.20 0.00 0 48.00 0.00 0.00 0.00 25.80 0.00 0 48.00 0.00 0.00 0.00 26.40 0.00 0 48.00 0.00 0.00 0.00 27.00 0.00 0 48.00 0.00 0.00 0.00 27.60 0.00 0 48.00 0.00 0.00 0.00 Type III 24-hr 10-year Rainfall=4.88"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 96HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Stage-Discharge for Pond S5: Grassed Swale Leaching - S5 Elevation (feet) Discharge (cfs) Discarded (cfs) Primary (cfs) 48.00 0.00 0.00 0.00 48.01 0.04 0.04 0.00 48.02 0.04 0.04 0.00 48.03 0.04 0.04 0.00 48.04 0.04 0.04 0.00 48.05 0.04 0.04 0.00 48.06 0.04 0.04 0.00 48.07 0.04 0.04 0.00 48.08 0.04 0.04 0.00 48.09 0.04 0.04 0.00 48.10 0.04 0.04 0.00 48.11 0.04 0.04 0.00 48.12 0.04 0.04 0.00 48.13 0.04 0.04 0.00 48.14 0.04 0.04 0.00 48.15 0.04 0.04 0.00 48.16 0.04 0.04 0.00 48.17 0.04 0.04 0.00 48.18 0.04 0.04 0.00 48.19 0.04 0.04 0.00 48.20 0.04 0.04 0.00 48.21 0.04 0.04 0.00 48.22 0.04 0.04 0.00 48.23 0.04 0.04 0.00 48.24 0.04 0.04 0.00 48.25 0.04 0.04 0.00 48.26 0.04 0.04 0.00 48.27 0.04 0.04 0.00 48.28 0.04 0.04 0.00 48.29 0.04 0.04 0.00 48.30 0.04 0.04 0.00 48.31 0.04 0.04 0.00 48.32 0.05 0.05 0.00 48.33 0.05 0.05 0.00 48.34 0.05 0.05 0.00 48.35 0.05 0.05 0.00 48.36 0.05 0.05 0.00 48.37 0.05 0.05 0.00 48.38 0.05 0.05 0.00 48.39 0.05 0.05 0.00 48.40 0.05 0.05 0.00 48.41 0.05 0.05 0.00 48.42 0.05 0.05 0.00 48.43 0.05 0.05 0.00 48.44 0.05 0.05 0.00 48.45 0.05 0.05 0.00 48.46 0.05 0.05 0.00 48.47 0.05 0.05 0.00 48.48 0.05 0.05 0.00 48.49 0.05 0.05 0.00 48.50 0.05 0.05 0.00 48.51 0.05 0.05 0.00 Elevation (feet) Discharge (cfs) Discarded (cfs) Primary (cfs) 48.52 0.05 0.05 0.00 48.53 0.05 0.05 0.00 48.54 0.05 0.05 0.00 48.55 0.05 0.05 0.00 48.56 0.05 0.05 0.00 48.57 0.05 0.05 0.00 48.58 0.05 0.05 0.00 48.59 0.05 0.05 0.00 48.60 0.05 0.05 0.00 48.61 0.05 0.05 0.00 48.62 0.05 0.05 0.00 48.63 0.05 0.05 0.00 48.64 0.05 0.05 0.00 48.65 0.05 0.05 0.00 48.66 0.05 0.05 0.00 48.67 0.05 0.05 0.00 48.68 0.05 0.05 0.00 48.69 0.05 0.05 0.00 48.70 0.05 0.05 0.00 48.71 0.05 0.05 0.00 48.72 0.05 0.05 0.00 48.73 0.05 0.05 0.00 48.74 0.05 0.05 0.00 48.75 0.05 0.05 0.00 48.76 0.05 0.05 0.00 48.77 0.05 0.05 0.00 48.78 0.05 0.05 0.00 48.79 0.05 0.05 0.00 48.80 0.05 0.05 0.00 48.81 0.05 0.05 0.00 48.82 0.05 0.05 0.00 48.83 0.05 0.05 0.00 48.84 0.05 0.05 0.00 48.85 0.05 0.05 0.00 48.86 0.05 0.05 0.00 48.87 0.05 0.05 0.00 48.88 0.05 0.05 0.00 48.89 0.05 0.05 0.00 48.90 0.05 0.05 0.00 48.91 0.09 0.05 0.03 48.92 0.14 0.05 0.09 48.93 0.22 0.05 0.16 48.94 0.30 0.05 0.25 48.95 0.40 0.06 0.35 48.96 0.51 0.06 0.46 48.97 0.63 0.06 0.58 48.98 0.76 0.06 0.71 48.99 0.90 0.06 0.84 49.00 1.04 0.06 0.99 Type III 24-hr 10-year Rainfall=4.88"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 97HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond S5: Grassed Swale Leaching - S5 Elevation (feet) Surface (sq-ft) Wetted (sq-ft) Storage (cubic-feet) 48.00 721 721 0 48.01 723 724 7 48.02 726 726 14 48.03 728 729 22 48.04 731 732 29 48.05 733 735 36 48.06 736 737 44 48.07 738 740 51 48.08 740 743 58 48.09 743 745 66 48.10 745 748 73 48.11 748 751 81 48.12 750 754 88 48.13 753 756 96 48.14 755 759 103 48.15 758 762 111 48.16 760 764 118 48.17 763 767 126 48.18 765 770 134 48.19 768 773 141 48.20 770 775 149 48.21 773 778 157 48.22 775 781 165 48.23 778 784 172 48.24 780 786 180 48.25 783 789 188 48.26 785 792 196 48.27 788 795 204 48.28 790 797 212 48.29 793 800 219 48.30 795 803 227 48.31 798 806 235 48.32 800 809 243 48.33 803 811 251 48.34 806 814 259 48.35 808 817 267 48.36 811 820 276 48.37 813 822 284 48.38 816 825 292 48.39 818 828 300 48.40 821 831 308 48.41 824 834 316 48.42 826 836 325 48.43 829 839 333 48.44 831 842 341 48.45 834 845 350 48.46 836 848 358 48.47 839 851 366 48.48 842 853 375 48.49 844 856 383 48.50 847 859 392 48.51 850 862 400 Elevation (feet) Surface (sq-ft) Wetted (sq-ft) Storage (cubic-feet) 48.52 852 865 409 48.53 855 867 417 48.54 857 870 426 48.55 860 873 434 48.56 863 876 443 48.57 865 879 451 48.58 868 882 460 48.59 871 884 469 48.60 873 887 478 48.61 876 890 486 48.62 879 893 495 48.63 881 896 504 48.64 884 899 513 48.65 887 902 522 48.66 889 904 530 48.67 892 907 539 48.68 895 910 548 48.69 897 913 557 48.70 900 916 566 48.71 903 919 575 48.72 906 922 584 48.73 908 925 593 48.74 911 927 602 48.75 914 930 612 48.76 916 933 621 48.77 919 936 630 48.78 922 939 639 48.79 925 942 648 48.80 927 945 658 48.81 930 948 667 48.82 933 951 676 48.83 936 954 686 48.84 938 956 695 48.85 941 959 704 48.86 944 962 714 48.87 947 965 723 48.88 949 968 733 48.89 952 971 742 48.90 955 974 752 48.91 958 977 761 48.92 961 980 771 48.93 963 983 781 48.94 966 986 790 48.95 969 989 800 48.96 972 992 810 48.97 975 995 819 48.98 977 998 829 48.99 980 1,000 839 49.00 983 1,003 849 Type III 24-hr 25-year Rainfall=5.84"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 98HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 1S: Post-Development Watershed - S1 Runoff = 0.67 cfs @ 12.15 hrs, Volume= 0.063 af, Depth= 1.35" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-27.99 hrs, dt= 0.03 hrs Type III 24-hr 25-year Rainfall=5.84" Area (sf) CN Description 5,977 98 Paved parking, HSG A 18,300 39 >75% Grass cover, Good, HSG A 24,277 54 Weighted Average 18,300 75.38% Pervious Area 5,977 24.62% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 8.0 50 0.0200 0.10 Sheet Flow, Grass: Dense n= 0.240 P2= 3.36" 1.5 110 0.0300 1.21 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 9.5 160 Total Subcatchment 1S: Post-Development Watershed - S1 Runoff Hydrograph Time (hours) 26242220181614121086420Flow (cfs)0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 Type III 24-hr 25-year Rainfall=5.84" Runoff Area=24,277 sf Runoff Volume=0.063 af Runoff Depth=1.35" Flow Length=160' Tc=9.5 min CN=54 0.67 cfs Type III 24-hr 25-year Rainfall=5.84"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 99HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Hydrograph for Subcatchment 1S: Post-Development Watershed - S1 Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 0.00 0.00 0.00 0.00 0.30 0.02 0.00 0.00 0.60 0.04 0.00 0.00 0.90 0.05 0.00 0.00 1.20 0.07 0.00 0.00 1.50 0.09 0.00 0.00 1.80 0.11 0.00 0.00 2.10 0.12 0.00 0.00 2.40 0.14 0.00 0.00 2.70 0.16 0.00 0.00 3.00 0.18 0.00 0.00 3.30 0.20 0.00 0.00 3.60 0.22 0.00 0.00 3.90 0.24 0.00 0.00 4.20 0.27 0.00 0.00 4.50 0.29 0.00 0.00 4.80 0.31 0.00 0.00 5.10 0.34 0.00 0.00 5.40 0.37 0.00 0.00 5.70 0.39 0.00 0.00 6.00 0.42 0.00 0.00 6.30 0.45 0.00 0.00 6.60 0.48 0.00 0.00 6.90 0.52 0.00 0.00 7.20 0.55 0.00 0.00 7.50 0.59 0.00 0.00 7.80 0.64 0.00 0.00 8.10 0.68 0.00 0.00 8.40 0.73 0.00 0.00 8.70 0.79 0.00 0.00 9.00 0.85 0.00 0.00 9.30 0.92 0.00 0.00 9.60 0.99 0.00 0.00 9.90 1.08 0.00 0.00 10.20 1.16 0.00 0.00 10.50 1.26 0.00 0.00 10.80 1.38 0.00 0.00 11.10 1.51 0.00 0.00 11.40 1.67 0.00 0.00 11.70 1.98 0.01 0.01 12.00 2.92 0.15 0.22 12.30 3.86 0.43 0.48 12.60 4.17 0.55 0.21 12.90 4.33 0.62 0.13 13.20 4.46 0.67 0.10 13.50 4.58 0.72 0.09 13.80 4.68 0.77 0.08 14.10 4.76 0.81 0.07 14.40 4.85 0.85 0.07 14.70 4.92 0.88 0.07 15.00 4.99 0.91 0.06 15.30 5.05 0.94 0.06 Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 15.60 5.11 0.97 0.05 15.90 5.16 1.00 0.05 16.20 5.20 1.02 0.04 16.50 5.25 1.04 0.04 16.80 5.29 1.06 0.04 17.10 5.32 1.08 0.04 17.40 5.36 1.10 0.03 17.70 5.39 1.11 0.03 18.00 5.42 1.13 0.03 18.30 5.45 1.14 0.03 18.60 5.47 1.16 0.03 18.90 5.50 1.17 0.03 19.20 5.53 1.18 0.02 19.50 5.55 1.20 0.02 19.80 5.57 1.21 0.02 20.10 5.60 1.22 0.02 20.40 5.62 1.23 0.02 20.70 5.64 1.24 0.02 21.00 5.66 1.26 0.02 21.30 5.68 1.27 0.02 21.60 5.70 1.28 0.02 21.90 5.72 1.29 0.02 22.20 5.74 1.30 0.02 22.50 5.76 1.31 0.02 22.80 5.78 1.32 0.02 23.10 5.79 1.33 0.02 23.40 5.81 1.34 0.02 23.70 5.82 1.34 0.02 24.00 5.84 1.35 0.02 24.30 5.84 1.35 0.00 24.60 5.84 1.35 0.00 24.90 5.84 1.35 0.00 25.20 5.84 1.35 0.00 25.50 5.84 1.35 0.00 25.80 5.84 1.35 0.00 26.10 5.84 1.35 0.00 26.40 5.84 1.35 0.00 26.70 5.84 1.35 0.00 27.00 5.84 1.35 0.00 27.30 5.84 1.35 0.00 27.60 5.84 1.35 0.00 27.90 5.84 1.35 0.00 Type III 24-hr 25-year Rainfall=5.84"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 100HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 2S: Post-Development Watershed - S2 Runoff = 0.03 cfs @ 12.36 hrs, Volume= 0.007 af, Depth= 0.40" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-27.99 hrs, dt= 0.03 hrs Type III 24-hr 25-year Rainfall=5.84" Area (sf) CN Description 9,726 39 >75% Grass cover, Good, HSG A 9,726 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, (minimum) 5.0 0 Total, Increased to minimum Tc = 6.0 min Subcatchment 2S: Post-Development Watershed - S2 Runoff Hydrograph Time (hours) 26242220181614121086420Flow (cfs)0.036 0.034 0.032 0.03 0.028 0.026 0.024 0.022 0.02 0.018 0.016 0.014 0.012 0.01 0.008 0.006 0.004 0.002 0 Type III 24-hr 25-year Rainfall=5.84" Runoff Area=9,726 sf Runoff Volume=0.007 af Runoff Depth=0.40" Tc=6.0 min CN=39 0.03 cfs Type III 24-hr 25-year Rainfall=5.84"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 101HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Hydrograph for Subcatchment 2S: Post-Development Watershed - S2 Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 0.00 0.00 0.00 0.00 0.30 0.02 0.00 0.00 0.60 0.04 0.00 0.00 0.90 0.05 0.00 0.00 1.20 0.07 0.00 0.00 1.50 0.09 0.00 0.00 1.80 0.11 0.00 0.00 2.10 0.12 0.00 0.00 2.40 0.14 0.00 0.00 2.70 0.16 0.00 0.00 3.00 0.18 0.00 0.00 3.30 0.20 0.00 0.00 3.60 0.22 0.00 0.00 3.90 0.24 0.00 0.00 4.20 0.27 0.00 0.00 4.50 0.29 0.00 0.00 4.80 0.31 0.00 0.00 5.10 0.34 0.00 0.00 5.40 0.37 0.00 0.00 5.70 0.39 0.00 0.00 6.00 0.42 0.00 0.00 6.30 0.45 0.00 0.00 6.60 0.48 0.00 0.00 6.90 0.52 0.00 0.00 7.20 0.55 0.00 0.00 7.50 0.59 0.00 0.00 7.80 0.64 0.00 0.00 8.10 0.68 0.00 0.00 8.40 0.73 0.00 0.00 8.70 0.79 0.00 0.00 9.00 0.85 0.00 0.00 9.30 0.92 0.00 0.00 9.60 0.99 0.00 0.00 9.90 1.08 0.00 0.00 10.20 1.16 0.00 0.00 10.50 1.26 0.00 0.00 10.80 1.38 0.00 0.00 11.10 1.51 0.00 0.00 11.40 1.67 0.00 0.00 11.70 1.98 0.00 0.00 12.00 2.92 0.00 0.00 12.30 3.86 0.03 0.03 12.60 4.17 0.06 0.02 12.90 4.33 0.09 0.02 13.20 4.46 0.10 0.01 13.50 4.58 0.12 0.01 13.80 4.68 0.14 0.01 14.10 4.76 0.15 0.01 14.40 4.85 0.17 0.01 14.70 4.92 0.18 0.01 15.00 4.99 0.20 0.01 15.30 5.05 0.21 0.01 Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 15.60 5.11 0.22 0.01 15.90 5.16 0.23 0.01 16.20 5.20 0.24 0.01 16.50 5.25 0.25 0.01 16.80 5.29 0.26 0.01 17.10 5.32 0.27 0.01 17.40 5.36 0.28 0.01 17.70 5.39 0.29 0.01 18.00 5.42 0.29 0.01 18.30 5.45 0.30 0.00 18.60 5.47 0.31 0.00 18.90 5.50 0.31 0.00 19.20 5.53 0.32 0.00 19.50 5.55 0.32 0.00 19.80 5.57 0.33 0.00 20.10 5.60 0.34 0.00 20.40 5.62 0.34 0.00 20.70 5.64 0.35 0.00 21.00 5.66 0.35 0.00 21.30 5.68 0.36 0.00 21.60 5.70 0.36 0.00 21.90 5.72 0.37 0.00 22.20 5.74 0.37 0.00 22.50 5.76 0.38 0.00 22.80 5.78 0.38 0.00 23.10 5.79 0.39 0.00 23.40 5.81 0.39 0.00 23.70 5.82 0.40 0.00 24.00 5.84 0.40 0.00 24.30 5.84 0.40 0.00 24.60 5.84 0.40 0.00 24.90 5.84 0.40 0.00 25.20 5.84 0.40 0.00 25.50 5.84 0.40 0.00 25.80 5.84 0.40 0.00 26.10 5.84 0.40 0.00 26.40 5.84 0.40 0.00 26.70 5.84 0.40 0.00 27.00 5.84 0.40 0.00 27.30 5.84 0.40 0.00 27.60 5.84 0.40 0.00 27.90 5.84 0.40 0.00 Type III 24-hr 25-year Rainfall=5.84"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 102HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 3S: Post-Development Watershed - S3 Runoff = 0.30 cfs @ 12.40 hrs, Volume= 0.065 af, Depth= 0.45" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-27.99 hrs, dt= 0.03 hrs Type III 24-hr 25-year Rainfall=5.84" Area (sf) CN Description 2,900 98 Paved parking, HSG A 46,737 39 >75% Grass cover, Good, HSG A 25,000 36 Woods, Fair, HSG A 74,637 40 Weighted Average 71,737 96.11% Pervious Area 2,900 3.89% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.1 50 0.0400 0.14 Sheet Flow, Grass: Dense n= 0.240 P2= 3.36" 3.6 300 0.0400 1.40 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 0.7 150 0.1000 3.61 45.08 Channel Flow, Area= 12.5 sf Perim= 5.0' r= 2.50' n= 0.240 Sheet flow over Dense Grass 10.4 500 Total Subcatchment 3S: Post-Development Watershed - S3 Runoff Hydrograph Time (hours) 26242220181614121086420Flow (cfs)0.34 0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 Type III 24-hr 25-year Rainfall=5.84" Runoff Area=74,637 sf Runoff Volume=0.065 af Runoff Depth=0.45" Flow Length=500' Tc=10.4 min CN=40 0.30 cfs Type III 24-hr 25-year Rainfall=5.84"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 103HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Hydrograph for Subcatchment 3S: Post-Development Watershed - S3 Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 0.00 0.00 0.00 0.00 0.30 0.02 0.00 0.00 0.60 0.04 0.00 0.00 0.90 0.05 0.00 0.00 1.20 0.07 0.00 0.00 1.50 0.09 0.00 0.00 1.80 0.11 0.00 0.00 2.10 0.12 0.00 0.00 2.40 0.14 0.00 0.00 2.70 0.16 0.00 0.00 3.00 0.18 0.00 0.00 3.30 0.20 0.00 0.00 3.60 0.22 0.00 0.00 3.90 0.24 0.00 0.00 4.20 0.27 0.00 0.00 4.50 0.29 0.00 0.00 4.80 0.31 0.00 0.00 5.10 0.34 0.00 0.00 5.40 0.37 0.00 0.00 5.70 0.39 0.00 0.00 6.00 0.42 0.00 0.00 6.30 0.45 0.00 0.00 6.60 0.48 0.00 0.00 6.90 0.52 0.00 0.00 7.20 0.55 0.00 0.00 7.50 0.59 0.00 0.00 7.80 0.64 0.00 0.00 8.10 0.68 0.00 0.00 8.40 0.73 0.00 0.00 8.70 0.79 0.00 0.00 9.00 0.85 0.00 0.00 9.30 0.92 0.00 0.00 9.60 0.99 0.00 0.00 9.90 1.08 0.00 0.00 10.20 1.16 0.00 0.00 10.50 1.26 0.00 0.00 10.80 1.38 0.00 0.00 11.10 1.51 0.00 0.00 11.40 1.67 0.00 0.00 11.70 1.98 0.00 0.00 12.00 2.92 0.00 0.00 12.30 3.86 0.05 0.27 12.60 4.17 0.08 0.22 12.90 4.33 0.11 0.14 13.20 4.46 0.13 0.12 13.50 4.58 0.15 0.11 13.80 4.68 0.17 0.11 14.10 4.76 0.19 0.10 14.40 4.85 0.20 0.09 14.70 4.92 0.22 0.09 15.00 4.99 0.23 0.09 15.30 5.05 0.25 0.08 Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 15.60 5.11 0.26 0.07 15.90 5.16 0.27 0.07 16.20 5.20 0.28 0.06 16.50 5.25 0.29 0.06 16.80 5.29 0.30 0.06 17.10 5.32 0.31 0.05 17.40 5.36 0.32 0.05 17.70 5.39 0.33 0.05 18.00 5.42 0.34 0.04 18.30 5.45 0.34 0.04 18.60 5.47 0.35 0.04 18.90 5.50 0.36 0.04 19.20 5.53 0.36 0.04 19.50 5.55 0.37 0.04 19.80 5.57 0.38 0.04 20.10 5.60 0.38 0.04 20.40 5.62 0.39 0.04 20.70 5.64 0.40 0.03 21.00 5.66 0.40 0.03 21.30 5.68 0.41 0.03 21.60 5.70 0.41 0.03 21.90 5.72 0.42 0.03 22.20 5.74 0.42 0.03 22.50 5.76 0.43 0.03 22.80 5.78 0.43 0.03 23.10 5.79 0.44 0.03 23.40 5.81 0.44 0.03 23.70 5.82 0.45 0.03 24.00 5.84 0.45 0.03 24.30 5.84 0.45 0.00 24.60 5.84 0.45 0.00 24.90 5.84 0.45 0.00 25.20 5.84 0.45 0.00 25.50 5.84 0.45 0.00 25.80 5.84 0.45 0.00 26.10 5.84 0.45 0.00 26.40 5.84 0.45 0.00 26.70 5.84 0.45 0.00 27.00 5.84 0.45 0.00 27.30 5.84 0.45 0.00 27.60 5.84 0.45 0.00 27.90 5.84 0.45 0.00 Type III 24-hr 25-year Rainfall=5.84"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 104HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 4S: Post-Development Watershed - S4 Runoff = 0.10 cfs @ 12.10 hrs, Volume= 0.008 af, Depth= 1.43" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-27.99 hrs, dt= 0.03 hrs Type III 24-hr 25-year Rainfall=5.84" Area (sf) CN Description 791 98 Paved parking, HSG A 2,053 39 >75% Grass cover, Good, HSG A 2,844 55 Weighted Average 2,053 72.19% Pervious Area 791 27.81% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, (minimum) 5.0 0 Total, Increased to minimum Tc = 6.0 min Subcatchment 4S: Post-Development Watershed - S4 Runoff Hydrograph Time (hours) 26242220181614121086420Flow (cfs)0.105 0.1 0.095 0.09 0.085 0.08 0.075 0.07 0.065 0.06 0.055 0.05 0.045 0.04 0.035 0.03 0.025 0.02 0.015 0.01 0.005 0 Type III 24-hr 25-year Rainfall=5.84" Runoff Area=2,844 sf Runoff Volume=0.008 af Runoff Depth=1.43" Tc=6.0 min CN=55 0.10 cfs Type III 24-hr 25-year Rainfall=5.84"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 105HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Hydrograph for Subcatchment 4S: Post-Development Watershed - S4 Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 0.00 0.00 0.00 0.00 0.30 0.02 0.00 0.00 0.60 0.04 0.00 0.00 0.90 0.05 0.00 0.00 1.20 0.07 0.00 0.00 1.50 0.09 0.00 0.00 1.80 0.11 0.00 0.00 2.10 0.12 0.00 0.00 2.40 0.14 0.00 0.00 2.70 0.16 0.00 0.00 3.00 0.18 0.00 0.00 3.30 0.20 0.00 0.00 3.60 0.22 0.00 0.00 3.90 0.24 0.00 0.00 4.20 0.27 0.00 0.00 4.50 0.29 0.00 0.00 4.80 0.31 0.00 0.00 5.10 0.34 0.00 0.00 5.40 0.37 0.00 0.00 5.70 0.39 0.00 0.00 6.00 0.42 0.00 0.00 6.30 0.45 0.00 0.00 6.60 0.48 0.00 0.00 6.90 0.52 0.00 0.00 7.20 0.55 0.00 0.00 7.50 0.59 0.00 0.00 7.80 0.64 0.00 0.00 8.10 0.68 0.00 0.00 8.40 0.73 0.00 0.00 8.70 0.79 0.00 0.00 9.00 0.85 0.00 0.00 9.30 0.92 0.00 0.00 9.60 0.99 0.00 0.00 9.90 1.08 0.00 0.00 10.20 1.16 0.00 0.00 10.50 1.26 0.00 0.00 10.80 1.38 0.00 0.00 11.10 1.51 0.00 0.00 11.40 1.67 0.00 0.00 11.70 1.98 0.01 0.00 12.00 2.92 0.17 0.04 12.30 3.86 0.47 0.05 12.60 4.17 0.60 0.02 12.90 4.33 0.67 0.01 13.20 4.46 0.73 0.01 13.50 4.58 0.78 0.01 13.80 4.68 0.82 0.01 14.10 4.76 0.87 0.01 14.40 4.85 0.90 0.01 14.70 4.92 0.94 0.01 15.00 4.99 0.97 0.01 15.30 5.05 1.01 0.01 Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 15.60 5.11 1.03 0.01 15.90 5.16 1.06 0.01 16.20 5.20 1.08 0.01 16.50 5.25 1.11 0.00 16.80 5.29 1.13 0.00 17.10 5.32 1.15 0.00 17.40 5.36 1.16 0.00 17.70 5.39 1.18 0.00 18.00 5.42 1.20 0.00 18.30 5.45 1.21 0.00 18.60 5.47 1.23 0.00 18.90 5.50 1.24 0.00 19.20 5.53 1.25 0.00 19.50 5.55 1.27 0.00 19.80 5.57 1.28 0.00 20.10 5.60 1.29 0.00 20.40 5.62 1.30 0.00 20.70 5.64 1.32 0.00 21.00 5.66 1.33 0.00 21.30 5.68 1.34 0.00 21.60 5.70 1.35 0.00 21.90 5.72 1.36 0.00 22.20 5.74 1.37 0.00 22.50 5.76 1.38 0.00 22.80 5.78 1.39 0.00 23.10 5.79 1.40 0.00 23.40 5.81 1.41 0.00 23.70 5.82 1.42 0.00 24.00 5.84 1.43 0.00 24.30 5.84 1.43 0.00 24.60 5.84 1.43 0.00 24.90 5.84 1.43 0.00 25.20 5.84 1.43 0.00 25.50 5.84 1.43 0.00 25.80 5.84 1.43 0.00 26.10 5.84 1.43 0.00 26.40 5.84 1.43 0.00 26.70 5.84 1.43 0.00 27.00 5.84 1.43 0.00 27.30 5.84 1.43 0.00 27.60 5.84 1.43 0.00 27.90 5.84 1.43 0.00 Type III 24-hr 25-year Rainfall=5.84"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 106HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 5S: Post-Development Watershed - S5 Runoff = 0.14 cfs @ 12.28 hrs, Volume= 0.024 af, Depth= 0.56" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-27.99 hrs, dt= 0.03 hrs Type III 24-hr 25-year Rainfall=5.84" Area (sf) CN Description 1,355 98 Paved parking, HSG A 16,825 39 >75% Grass cover, Good, HSG A 4,500 36 Woods, Fair, HSG A 22,680 42 Weighted Average 21,325 94.03% Pervious Area 1,355 5.97% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, (minimum) 5.0 0 Total, Increased to minimum Tc = 6.0 min Subcatchment 5S: Post-Development Watershed - S5 Runoff Hydrograph Time (hours) 26242220181614121086420Flow (cfs)0.15 0.14 0.13 0.12 0.11 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0 Type III 24-hr 25-year Rainfall=5.84" Runoff Area=22,680 sf Runoff Volume=0.024 af Runoff Depth=0.56" Tc=6.0 min CN=42 0.14 cfs Type III 24-hr 25-year Rainfall=5.84"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 107HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Hydrograph for Subcatchment 5S: Post-Development Watershed - S5 Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 0.00 0.00 0.00 0.00 0.30 0.02 0.00 0.00 0.60 0.04 0.00 0.00 0.90 0.05 0.00 0.00 1.20 0.07 0.00 0.00 1.50 0.09 0.00 0.00 1.80 0.11 0.00 0.00 2.10 0.12 0.00 0.00 2.40 0.14 0.00 0.00 2.70 0.16 0.00 0.00 3.00 0.18 0.00 0.00 3.30 0.20 0.00 0.00 3.60 0.22 0.00 0.00 3.90 0.24 0.00 0.00 4.20 0.27 0.00 0.00 4.50 0.29 0.00 0.00 4.80 0.31 0.00 0.00 5.10 0.34 0.00 0.00 5.40 0.37 0.00 0.00 5.70 0.39 0.00 0.00 6.00 0.42 0.00 0.00 6.30 0.45 0.00 0.00 6.60 0.48 0.00 0.00 6.90 0.52 0.00 0.00 7.20 0.55 0.00 0.00 7.50 0.59 0.00 0.00 7.80 0.64 0.00 0.00 8.10 0.68 0.00 0.00 8.40 0.73 0.00 0.00 8.70 0.79 0.00 0.00 9.00 0.85 0.00 0.00 9.30 0.92 0.00 0.00 9.60 0.99 0.00 0.00 9.90 1.08 0.00 0.00 10.20 1.16 0.00 0.00 10.50 1.26 0.00 0.00 10.80 1.38 0.00 0.00 11.10 1.51 0.00 0.00 11.40 1.67 0.00 0.00 11.70 1.98 0.00 0.00 12.00 2.92 0.00 0.00 12.30 3.86 0.08 0.14 12.60 4.17 0.13 0.07 12.90 4.33 0.16 0.05 13.20 4.46 0.19 0.04 13.50 4.58 0.21 0.04 13.80 4.68 0.23 0.04 14.10 4.76 0.25 0.04 14.40 4.85 0.27 0.03 14.70 4.92 0.29 0.03 15.00 4.99 0.31 0.03 15.30 5.05 0.33 0.03 Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 15.60 5.11 0.34 0.03 15.90 5.16 0.35 0.02 16.20 5.20 0.37 0.02 16.50 5.25 0.38 0.02 16.80 5.29 0.39 0.02 17.10 5.32 0.40 0.02 17.40 5.36 0.41 0.02 17.70 5.39 0.42 0.02 18.00 5.42 0.43 0.01 18.30 5.45 0.44 0.01 18.60 5.47 0.45 0.01 18.90 5.50 0.45 0.01 19.20 5.53 0.46 0.01 19.50 5.55 0.47 0.01 19.80 5.57 0.48 0.01 20.10 5.60 0.48 0.01 20.40 5.62 0.49 0.01 20.70 5.64 0.50 0.01 21.00 5.66 0.50 0.01 21.30 5.68 0.51 0.01 21.60 5.70 0.52 0.01 21.90 5.72 0.52 0.01 22.20 5.74 0.53 0.01 22.50 5.76 0.53 0.01 22.80 5.78 0.54 0.01 23.10 5.79 0.55 0.01 23.40 5.81 0.55 0.01 23.70 5.82 0.56 0.01 24.00 5.84 0.56 0.01 24.30 5.84 0.56 0.00 24.60 5.84 0.56 0.00 24.90 5.84 0.56 0.00 25.20 5.84 0.56 0.00 25.50 5.84 0.56 0.00 25.80 5.84 0.56 0.00 26.10 5.84 0.56 0.00 26.40 5.84 0.56 0.00 26.70 5.84 0.56 0.00 27.00 5.84 0.56 0.00 27.30 5.84 0.56 0.00 27.60 5.84 0.56 0.00 27.90 5.84 0.56 0.00 Type III 24-hr 25-year Rainfall=5.84"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 108HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 6S: Post-Development Watershed - Non-Recharge Areas Only Runoff = 0.28 cfs @ 12.52 hrs, Volume= 0.092 af, Depth= 0.30" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-27.99 hrs, dt= 0.03 hrs Type III 24-hr 25-year Rainfall=5.84" Area (sf) CN Description 609 98 Paved parking, HSG A 30,000 39 >75% Grass cover, Good, HSG A 127,481 36 Woods, Fair, HSG A 158,090 37 Weighted Average 157,481 99.61% Pervious Area 609 0.39% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.3 50 0.1000 0.13 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 3.36" 6.3 500 0.0700 1.32 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 12.6 550 Total Subcatchment 6S: Post-Development Watershed - Non-Recharge Areas Only Runoff Hydrograph Time (hours) 26242220181614121086420Flow (cfs)0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 Type III 24-hr 25-year Rainfall=5.84" Runoff Area=158,090 sf Runoff Volume=0.092 af Runoff Depth=0.30" Flow Length=550' Tc=12.6 min CN=37 0.28 cfs Type III 24-hr 25-year Rainfall=5.84"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 109HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Hydrograph for Subcatchment 6S: Post-Development Watershed - Non-Recharge Areas Only Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 0.00 0.00 0.00 0.00 0.30 0.02 0.00 0.00 0.60 0.04 0.00 0.00 0.90 0.05 0.00 0.00 1.20 0.07 0.00 0.00 1.50 0.09 0.00 0.00 1.80 0.11 0.00 0.00 2.10 0.12 0.00 0.00 2.40 0.14 0.00 0.00 2.70 0.16 0.00 0.00 3.00 0.18 0.00 0.00 3.30 0.20 0.00 0.00 3.60 0.22 0.00 0.00 3.90 0.24 0.00 0.00 4.20 0.27 0.00 0.00 4.50 0.29 0.00 0.00 4.80 0.31 0.00 0.00 5.10 0.34 0.00 0.00 5.40 0.37 0.00 0.00 5.70 0.39 0.00 0.00 6.00 0.42 0.00 0.00 6.30 0.45 0.00 0.00 6.60 0.48 0.00 0.00 6.90 0.52 0.00 0.00 7.20 0.55 0.00 0.00 7.50 0.59 0.00 0.00 7.80 0.64 0.00 0.00 8.10 0.68 0.00 0.00 8.40 0.73 0.00 0.00 8.70 0.79 0.00 0.00 9.00 0.85 0.00 0.00 9.30 0.92 0.00 0.00 9.60 0.99 0.00 0.00 9.90 1.08 0.00 0.00 10.20 1.16 0.00 0.00 10.50 1.26 0.00 0.00 10.80 1.38 0.00 0.00 11.10 1.51 0.00 0.00 11.40 1.67 0.00 0.00 11.70 1.98 0.00 0.00 12.00 2.92 0.00 0.00 12.30 3.86 0.01 0.10 12.60 4.17 0.03 0.26 12.90 4.33 0.05 0.19 13.20 4.46 0.06 0.17 13.50 4.58 0.08 0.16 13.80 4.68 0.09 0.16 14.10 4.76 0.10 0.15 14.40 4.85 0.11 0.14 14.70 4.92 0.12 0.14 15.00 4.99 0.13 0.13 15.30 5.05 0.15 0.13 Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 15.60 5.11 0.15 0.12 15.90 5.16 0.16 0.11 16.20 5.20 0.17 0.10 16.50 5.25 0.18 0.10 16.80 5.29 0.19 0.09 17.10 5.32 0.19 0.09 17.40 5.36 0.20 0.08 17.70 5.39 0.21 0.08 18.00 5.42 0.21 0.07 18.30 5.45 0.22 0.07 18.60 5.47 0.22 0.07 18.90 5.50 0.23 0.07 19.20 5.53 0.23 0.06 19.50 5.55 0.24 0.06 19.80 5.57 0.24 0.06 20.10 5.60 0.25 0.06 20.40 5.62 0.25 0.06 20.70 5.64 0.26 0.06 21.00 5.66 0.26 0.06 21.30 5.68 0.27 0.06 21.60 5.70 0.27 0.05 21.90 5.72 0.28 0.05 22.20 5.74 0.28 0.05 22.50 5.76 0.29 0.05 22.80 5.78 0.29 0.05 23.10 5.79 0.29 0.05 23.40 5.81 0.30 0.05 23.70 5.82 0.30 0.05 24.00 5.84 0.30 0.04 24.30 5.84 0.30 0.01 24.60 5.84 0.30 0.00 24.90 5.84 0.30 0.00 25.20 5.84 0.30 0.00 25.50 5.84 0.30 0.00 25.80 5.84 0.30 0.00 26.10 5.84 0.30 0.00 26.40 5.84 0.30 0.00 26.70 5.84 0.30 0.00 27.00 5.84 0.30 0.00 27.30 5.84 0.30 0.00 27.60 5.84 0.30 0.00 27.90 5.84 0.30 0.00 Type III 24-hr 25-year Rainfall=5.84"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 110HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 9S: Pre-Development Watershed - Entire Site Runoff = 1.27 cfs @ 12.50 hrs, Volume= 0.350 af, Depth= 0.35" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-27.99 hrs, dt= 0.03 hrs Type III 24-hr 25-year Rainfall=5.84" Area (sf) CN Description 401,143 36 Woods, Fair, HSG A 120,000 43 Woods/grass comb., Fair, HSG A 521,143 38 Weighted Average 521,143 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 50 0.0780 0.12 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 3.36" 6.2 520 0.0780 1.40 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 13.2 570 Total Subcatchment 9S: Pre-Development Watershed - Entire Site Runoff Hydrograph Time (hours) 26242220181614121086420Flow (cfs)1 0 Type III 24-hr 25-year Rainfall=5.84" Runoff Area=521,143 sf Runoff Volume=0.350 af Runoff Depth=0.35" Flow Length=570' Slope=0.0780 '/' Tc=13.2 min CN=38 1.27 cfs Type III 24-hr 25-year Rainfall=5.84"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 111HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Hydrograph for Subcatchment 9S: Pre-Development Watershed - Entire Site Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 0.00 0.00 0.00 0.00 0.30 0.02 0.00 0.00 0.60 0.04 0.00 0.00 0.90 0.05 0.00 0.00 1.20 0.07 0.00 0.00 1.50 0.09 0.00 0.00 1.80 0.11 0.00 0.00 2.10 0.12 0.00 0.00 2.40 0.14 0.00 0.00 2.70 0.16 0.00 0.00 3.00 0.18 0.00 0.00 3.30 0.20 0.00 0.00 3.60 0.22 0.00 0.00 3.90 0.24 0.00 0.00 4.20 0.27 0.00 0.00 4.50 0.29 0.00 0.00 4.80 0.31 0.00 0.00 5.10 0.34 0.00 0.00 5.40 0.37 0.00 0.00 5.70 0.39 0.00 0.00 6.00 0.42 0.00 0.00 6.30 0.45 0.00 0.00 6.60 0.48 0.00 0.00 6.90 0.52 0.00 0.00 7.20 0.55 0.00 0.00 7.50 0.59 0.00 0.00 7.80 0.64 0.00 0.00 8.10 0.68 0.00 0.00 8.40 0.73 0.00 0.00 8.70 0.79 0.00 0.00 9.00 0.85 0.00 0.00 9.30 0.92 0.00 0.00 9.60 0.99 0.00 0.00 9.90 1.08 0.00 0.00 10.20 1.16 0.00 0.00 10.50 1.26 0.00 0.00 10.80 1.38 0.00 0.00 11.10 1.51 0.00 0.00 11.40 1.67 0.00 0.00 11.70 1.98 0.00 0.00 12.00 2.92 0.00 0.00 12.30 3.86 0.02 0.65 12.60 4.17 0.05 1.13 12.90 4.33 0.07 0.78 13.20 4.46 0.08 0.66 13.50 4.58 0.10 0.63 13.80 4.68 0.11 0.61 14.10 4.76 0.13 0.57 14.40 4.85 0.14 0.54 14.70 4.92 0.15 0.52 15.00 4.99 0.17 0.50 15.30 5.05 0.18 0.47 Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 15.60 5.11 0.19 0.44 15.90 5.16 0.20 0.40 16.20 5.20 0.21 0.37 16.50 5.25 0.21 0.35 16.80 5.29 0.22 0.33 17.10 5.32 0.23 0.32 17.40 5.36 0.24 0.30 17.70 5.39 0.25 0.28 18.00 5.42 0.25 0.26 18.30 5.45 0.26 0.25 18.60 5.47 0.26 0.24 18.90 5.50 0.27 0.24 19.20 5.53 0.28 0.23 19.50 5.55 0.28 0.23 19.80 5.57 0.29 0.22 20.10 5.60 0.29 0.22 20.40 5.62 0.30 0.21 20.70 5.64 0.30 0.21 21.00 5.66 0.31 0.20 21.30 5.68 0.31 0.20 21.60 5.70 0.32 0.19 21.90 5.72 0.32 0.19 22.20 5.74 0.33 0.19 22.50 5.76 0.33 0.18 22.80 5.78 0.34 0.18 23.10 5.79 0.34 0.17 23.40 5.81 0.34 0.17 23.70 5.82 0.35 0.16 24.00 5.84 0.35 0.16 24.30 5.84 0.35 0.02 24.60 5.84 0.35 0.00 24.90 5.84 0.35 0.00 25.20 5.84 0.35 0.00 25.50 5.84 0.35 0.00 25.80 5.84 0.35 0.00 26.10 5.84 0.35 0.00 26.40 5.84 0.35 0.00 26.70 5.84 0.35 0.00 27.00 5.84 0.35 0.00 27.30 5.84 0.35 0.00 27.60 5.84 0.35 0.00 27.90 5.84 0.35 0.00 Type III 24-hr 25-year Rainfall=5.84"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 112HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Summary for Reach 1R: Post-Development Peak Discharge Rate Inflow Area = 6.709 ac, 3.98% Impervious, Inflow Depth = 0.16" for 25-year event Inflow = 0.28 cfs @ 12.52 hrs, Volume= 0.092 af Outflow = 0.28 cfs @ 12.52 hrs, Volume= 0.092 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-27.99 hrs, dt= 0.03 hrs Reach 1R: Post-Development Peak Discharge Rate Inflow Outflow Hydrograph Time (hours) 26242220181614121086420Flow (cfs)0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 Inflow Area=6.709 ac 0.28 cfs 0.28 cfs Type III 24-hr 25-year Rainfall=5.84"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 113HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Hydrograph for Reach 1R: Post-Development Peak Discharge Rate Time (hours) Inflow (cfs) Elevation (feet) Outflow (cfs) 0.00 0.00 0.00 0.30 0.00 0.00 0.60 0.00 0.00 0.90 0.00 0.00 1.20 0.00 0.00 1.50 0.00 0.00 1.80 0.00 0.00 2.10 0.00 0.00 2.40 0.00 0.00 2.70 0.00 0.00 3.00 0.00 0.00 3.30 0.00 0.00 3.60 0.00 0.00 3.90 0.00 0.00 4.20 0.00 0.00 4.50 0.00 0.00 4.80 0.00 0.00 5.10 0.00 0.00 5.40 0.00 0.00 5.70 0.00 0.00 6.00 0.00 0.00 6.30 0.00 0.00 6.60 0.00 0.00 6.90 0.00 0.00 7.20 0.00 0.00 7.50 0.00 0.00 7.80 0.00 0.00 8.10 0.00 0.00 8.40 0.00 0.00 8.70 0.00 0.00 9.00 0.00 0.00 9.30 0.00 0.00 9.60 0.00 0.00 9.90 0.00 0.00 10.20 0.00 0.00 10.50 0.00 0.00 10.80 0.00 0.00 11.10 0.00 0.00 11.40 0.00 0.00 11.70 0.00 0.00 12.00 0.00 0.00 12.30 0.10 0.10 12.60 0.26 0.26 12.90 0.19 0.19 13.20 0.17 0.17 13.50 0.16 0.16 13.80 0.16 0.16 14.10 0.15 0.15 14.40 0.14 0.14 14.70 0.14 0.14 15.00 0.13 0.13 15.30 0.13 0.13 Time (hours) Inflow (cfs) Elevation (feet) Outflow (cfs) 15.60 0.12 0.12 15.90 0.11 0.11 16.20 0.10 0.10 16.50 0.10 0.10 16.80 0.09 0.09 17.10 0.09 0.09 17.40 0.08 0.08 17.70 0.08 0.08 18.00 0.07 0.07 18.30 0.07 0.07 18.60 0.07 0.07 18.90 0.07 0.07 19.20 0.06 0.06 19.50 0.06 0.06 19.80 0.06 0.06 20.10 0.06 0.06 20.40 0.06 0.06 20.70 0.06 0.06 21.00 0.06 0.06 21.30 0.06 0.06 21.60 0.05 0.05 21.90 0.05 0.05 22.20 0.05 0.05 22.50 0.05 0.05 22.80 0.05 0.05 23.10 0.05 0.05 23.40 0.05 0.05 23.70 0.05 0.05 24.00 0.04 0.04 24.30 0.01 0.01 24.60 0.00 0.00 24.90 0.00 0.00 25.20 0.00 0.00 25.50 0.00 0.00 25.80 0.00 0.00 26.10 0.00 0.00 26.40 0.00 0.00 26.70 0.00 0.00 27.00 0.00 0.00 27.30 0.00 0.00 27.60 0.00 0.00 27.90 0.00 0.00 Type III 24-hr 25-year Rainfall=5.84"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 114HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Summary for Reach 9R: Pre-Development Peak Discharge Rate Inflow Area = 11.964 ac, 0.00% Impervious, Inflow Depth = 0.35" for 25-year event Inflow = 1.27 cfs @ 12.50 hrs, Volume= 0.350 af Outflow = 1.27 cfs @ 12.50 hrs, Volume= 0.350 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-27.99 hrs, dt= 0.03 hrs Reach 9R: Pre-Development Peak Discharge Rate Inflow Outflow Hydrograph Time (hours) 26242220181614121086420Flow (cfs)1 0 Inflow Area=11.964 ac 1.27 cfs 1.27 cfs Type III 24-hr 25-year Rainfall=5.84"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 115HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Hydrograph for Reach 9R: Pre-Development Peak Discharge Rate Time (hours) Inflow (cfs) Elevation (feet) Outflow (cfs) 0.00 0.00 0.00 0.30 0.00 0.00 0.60 0.00 0.00 0.90 0.00 0.00 1.20 0.00 0.00 1.50 0.00 0.00 1.80 0.00 0.00 2.10 0.00 0.00 2.40 0.00 0.00 2.70 0.00 0.00 3.00 0.00 0.00 3.30 0.00 0.00 3.60 0.00 0.00 3.90 0.00 0.00 4.20 0.00 0.00 4.50 0.00 0.00 4.80 0.00 0.00 5.10 0.00 0.00 5.40 0.00 0.00 5.70 0.00 0.00 6.00 0.00 0.00 6.30 0.00 0.00 6.60 0.00 0.00 6.90 0.00 0.00 7.20 0.00 0.00 7.50 0.00 0.00 7.80 0.00 0.00 8.10 0.00 0.00 8.40 0.00 0.00 8.70 0.00 0.00 9.00 0.00 0.00 9.30 0.00 0.00 9.60 0.00 0.00 9.90 0.00 0.00 10.20 0.00 0.00 10.50 0.00 0.00 10.80 0.00 0.00 11.10 0.00 0.00 11.40 0.00 0.00 11.70 0.00 0.00 12.00 0.00 0.00 12.30 0.65 0.65 12.60 1.13 1.13 12.90 0.78 0.78 13.20 0.66 0.66 13.50 0.63 0.63 13.80 0.61 0.61 14.10 0.57 0.57 14.40 0.54 0.54 14.70 0.52 0.52 15.00 0.50 0.50 15.30 0.47 0.47 Time (hours) Inflow (cfs) Elevation (feet) Outflow (cfs) 15.60 0.44 0.44 15.90 0.40 0.40 16.20 0.37 0.37 16.50 0.35 0.35 16.80 0.33 0.33 17.10 0.32 0.32 17.40 0.30 0.30 17.70 0.28 0.28 18.00 0.26 0.26 18.30 0.25 0.25 18.60 0.24 0.24 18.90 0.24 0.24 19.20 0.23 0.23 19.50 0.23 0.23 19.80 0.22 0.22 20.10 0.22 0.22 20.40 0.21 0.21 20.70 0.21 0.21 21.00 0.20 0.20 21.30 0.20 0.20 21.60 0.19 0.19 21.90 0.19 0.19 22.20 0.19 0.19 22.50 0.18 0.18 22.80 0.18 0.18 23.10 0.17 0.17 23.40 0.17 0.17 23.70 0.16 0.16 24.00 0.16 0.16 24.30 0.02 0.02 24.60 0.00 0.00 24.90 0.00 0.00 25.20 0.00 0.00 25.50 0.00 0.00 25.80 0.00 0.00 26.10 0.00 0.00 26.40 0.00 0.00 26.70 0.00 0.00 27.00 0.00 0.00 27.30 0.00 0.00 27.60 0.00 0.00 27.90 0.00 0.00 Type III 24-hr 25-year Rainfall=5.84"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 116HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Summary for Pond S1: Grassed Swale Leaching - S1 Inflow Area = 0.557 ac, 24.62% Impervious, Inflow Depth = 1.35" for 25-year event Inflow = 0.67 cfs @ 12.15 hrs, Volume= 0.063 af Outflow = 0.09 cfs @ 13.49 hrs, Volume= 0.063 af, Atten= 86%, Lag= 79.9 min Discarded = 0.09 cfs @ 13.49 hrs, Volume= 0.063 af Primary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-27.99 hrs, dt= 0.03 hrs Peak Elev= 50.98' @ 13.49 hrs Surf.Area= 1,128 sf Storage= 930 cf Plug-Flow detention time= 114.6 min calculated for 0.063 af (100% of inflow) Center-of-Mass det. time= 114.4 min ( 1,000.1 - 885.7 ) Volume Invert Avail.Storage Storage Description #1 50.00' 2,293 cf Grassed Swale (Irregular) Listed below (Recalc) Elevation Surf.Area Perim. Inc.Store Cum.Store Wet.Area (feet) (sq-ft) (feet) (cubic-feet) (cubic-feet) (sq-ft) 50.00 779 139.0 0 0 779 52.00 1,559 210.0 2,293 2,293 2,781 Device Routing Invert Outlet Devices #1 Discarded 50.00'2.410 in/hr Exfiltration over Wetted area Phase-In= 0.01' #2 Primary 51.90'10.0' long (Profile 6) Broad-Crested Rectangular Weir Head (feet) 0.49 0.98 1.48 Coef. (English) 3.12 3.41 3.59 Discarded OutFlow Max=0.09 cfs @ 13.49 hrs HW=50.98' (Free Discharge) 1=Exfiltration (Exfiltration Controls 0.09 cfs) Primary OutFlow Max=0.00 cfs @ 0.00 hrs HW=50.00' TW=0.00' (Dynamic Tailwater) 2=Broad-Crested Rectangular Weir ( Controls 0.00 cfs) Type III 24-hr 25-year Rainfall=5.84"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 117HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Pond S1: Grassed Swale Leaching - S1 Inflow Outflow Discarded Primary Hydrograph Time (hours) 26242220181614121086420Flow (cfs)0.7 0.65 0.6 0.55 0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 Inflow Area=0.557 ac Peak Elev=50.98' Storage=930 cf 0.67 cfs 0.09 cfs 0.09 cfs 0.00 cfs Pond S1: Grassed Swale Leaching - S1 Total Discarded Primary Stage-Discharge Discharge (cfs) 10Elevation (feet)52 51 50 Exfiltration Broad-Crested Rectangular Weir Type III 24-hr 25-year Rainfall=5.84"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 118HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Pond S1: Grassed Swale Leaching - S1 Surface Wetted Storage Stage-Area-Storage Storage (cubic-feet) 2,2002,0001,8001,6001,4001,2001,0008006004002000 Surface/Horizontal/Wetted Area (sq-ft) 2,5002,0001,5001,0005000 Elevation (feet)52 51 50 Grassed Swale Type III 24-hr 25-year Rainfall=5.84"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 119HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Hydrograph for Pond S1: Grassed Swale Leaching - S1 Time (hours) Inflow (cfs) Storage (cubic-feet) Elevation (feet) Outflow (cfs) Discarded (cfs) Primary (cfs) 0.00 0.00 0 50.00 0.00 0.00 0.00 0.60 0.00 0 50.00 0.00 0.00 0.00 1.20 0.00 0 50.00 0.00 0.00 0.00 1.80 0.00 0 50.00 0.00 0.00 0.00 2.40 0.00 0 50.00 0.00 0.00 0.00 3.00 0.00 0 50.00 0.00 0.00 0.00 3.60 0.00 0 50.00 0.00 0.00 0.00 4.20 0.00 0 50.00 0.00 0.00 0.00 4.80 0.00 0 50.00 0.00 0.00 0.00 5.40 0.00 0 50.00 0.00 0.00 0.00 6.00 0.00 0 50.00 0.00 0.00 0.00 6.60 0.00 0 50.00 0.00 0.00 0.00 7.20 0.00 0 50.00 0.00 0.00 0.00 7.80 0.00 0 50.00 0.00 0.00 0.00 8.40 0.00 0 50.00 0.00 0.00 0.00 9.00 0.00 0 50.00 0.00 0.00 0.00 9.60 0.00 0 50.00 0.00 0.00 0.00 10.20 0.00 0 50.00 0.00 0.00 0.00 10.80 0.00 0 50.00 0.00 0.00 0.00 11.40 0.00 0 50.00 0.00 0.00 0.00 12.00 0.22 53 50.07 0.05 0.05 0.00 12.60 0.21 834 50.89 0.09 0.09 0.00 13.20 0.10 926 50.98 0.09 0.09 0.00 13.80 0.08 925 50.98 0.09 0.09 0.00 14.40 0.07 891 50.95 0.09 0.09 0.00 15.00 0.06 840 50.90 0.09 0.09 0.00 15.60 0.05 775 50.84 0.08 0.08 0.00 16.20 0.04 696 50.77 0.08 0.08 0.00 16.80 0.04 612 50.68 0.08 0.08 0.00 17.40 0.03 528 50.60 0.07 0.07 0.00 18.00 0.03 443 50.51 0.07 0.07 0.00 18.60 0.03 359 50.42 0.06 0.06 0.00 19.20 0.02 282 50.34 0.06 0.06 0.00 19.80 0.02 210 50.26 0.06 0.06 0.00 20.40 0.02 144 50.18 0.05 0.05 0.00 21.00 0.02 83 50.10 0.05 0.05 0.00 21.60 0.02 27 50.03 0.04 0.04 0.00 22.20 0.02 3 50.00 0.02 0.02 0.00 22.80 0.02 3 50.00 0.02 0.02 0.00 23.40 0.02 3 50.00 0.02 0.02 0.00 24.00 0.02 3 50.00 0.02 0.02 0.00 24.60 0.00 0 50.00 0.00 0.00 0.00 25.20 0.00 0 50.00 0.00 0.00 0.00 25.80 0.00 0 50.00 0.00 0.00 0.00 26.40 0.00 0 50.00 0.00 0.00 0.00 27.00 0.00 0 50.00 0.00 0.00 0.00 27.60 0.00 0 50.00 0.00 0.00 0.00 Type III 24-hr 25-year Rainfall=5.84"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 120HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Stage-Discharge for Pond S1: Grassed Swale Leaching - S1 Elevation (feet) Discharge (cfs) Discarded (cfs) Primary (cfs) 50.00 0.00 0.00 0.00 50.02 0.04 0.04 0.00 50.04 0.05 0.05 0.00 50.06 0.05 0.05 0.00 50.08 0.05 0.05 0.00 50.10 0.05 0.05 0.00 50.12 0.05 0.05 0.00 50.14 0.05 0.05 0.00 50.16 0.05 0.05 0.00 50.18 0.05 0.05 0.00 50.20 0.05 0.05 0.00 50.22 0.05 0.05 0.00 50.24 0.05 0.05 0.00 50.26 0.06 0.06 0.00 50.28 0.06 0.06 0.00 50.30 0.06 0.06 0.00 50.32 0.06 0.06 0.00 50.34 0.06 0.06 0.00 50.36 0.06 0.06 0.00 50.38 0.06 0.06 0.00 50.40 0.06 0.06 0.00 50.42 0.06 0.06 0.00 50.44 0.06 0.06 0.00 50.46 0.07 0.07 0.00 50.48 0.07 0.07 0.00 50.50 0.07 0.07 0.00 50.52 0.07 0.07 0.00 50.54 0.07 0.07 0.00 50.56 0.07 0.07 0.00 50.58 0.07 0.07 0.00 50.60 0.07 0.07 0.00 50.62 0.07 0.07 0.00 50.64 0.07 0.07 0.00 50.66 0.08 0.08 0.00 50.68 0.08 0.08 0.00 50.70 0.08 0.08 0.00 50.72 0.08 0.08 0.00 50.74 0.08 0.08 0.00 50.76 0.08 0.08 0.00 50.78 0.08 0.08 0.00 50.80 0.08 0.08 0.00 50.82 0.08 0.08 0.00 50.84 0.08 0.08 0.00 50.86 0.09 0.09 0.00 50.88 0.09 0.09 0.00 50.90 0.09 0.09 0.00 50.92 0.09 0.09 0.00 50.94 0.09 0.09 0.00 50.96 0.09 0.09 0.00 50.98 0.09 0.09 0.00 51.00 0.09 0.09 0.00 51.02 0.09 0.09 0.00 Elevation (feet) Discharge (cfs) Discarded (cfs) Primary (cfs) 51.04 0.10 0.10 0.00 51.06 0.10 0.10 0.00 51.08 0.10 0.10 0.00 51.10 0.10 0.10 0.00 51.12 0.10 0.10 0.00 51.14 0.10 0.10 0.00 51.16 0.10 0.10 0.00 51.18 0.10 0.10 0.00 51.20 0.11 0.11 0.00 51.22 0.11 0.11 0.00 51.24 0.11 0.11 0.00 51.26 0.11 0.11 0.00 51.28 0.11 0.11 0.00 51.30 0.11 0.11 0.00 51.32 0.11 0.11 0.00 51.34 0.11 0.11 0.00 51.36 0.11 0.11 0.00 51.38 0.12 0.12 0.00 51.40 0.12 0.12 0.00 51.42 0.12 0.12 0.00 51.44 0.12 0.12 0.00 51.46 0.12 0.12 0.00 51.48 0.12 0.12 0.00 51.50 0.12 0.12 0.00 51.52 0.12 0.12 0.00 51.54 0.13 0.13 0.00 51.56 0.13 0.13 0.00 51.58 0.13 0.13 0.00 51.60 0.13 0.13 0.00 51.62 0.13 0.13 0.00 51.64 0.13 0.13 0.00 51.66 0.13 0.13 0.00 51.68 0.13 0.13 0.00 51.70 0.14 0.14 0.00 51.72 0.14 0.14 0.00 51.74 0.14 0.14 0.00 51.76 0.14 0.14 0.00 51.78 0.14 0.14 0.00 51.80 0.14 0.14 0.00 51.82 0.14 0.14 0.00 51.84 0.14 0.14 0.00 51.86 0.15 0.15 0.00 51.88 0.15 0.15 0.00 51.90 0.15 0.15 0.00 51.92 0.24 0.15 0.09 51.94 0.40 0.15 0.25 51.96 0.61 0.15 0.46 51.98 0.86 0.15 0.71 52.00 1.14 0.16 0.99 Type III 24-hr 25-year Rainfall=5.84"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 121HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond S1: Grassed Swale Leaching - S1 Elevation (feet) Surface (sq-ft) Wetted (sq-ft) Storage (cubic-feet) 50.00 779 779 0 50.02 785 795 16 50.04 792 811 31 50.06 799 827 47 50.08 805 843 63 50.10 812 860 80 50.12 818 876 96 50.14 825 893 112 50.16 832 909 129 50.18 838 926 146 50.20 845 943 162 50.22 852 959 179 50.24 858 976 196 50.26 865 993 214 50.28 872 1,010 231 50.30 879 1,027 249 50.32 886 1,045 266 50.34 893 1,062 284 50.36 900 1,079 302 50.38 907 1,097 320 50.40 914 1,114 338 50.42 921 1,132 356 50.44 928 1,150 375 50.46 935 1,167 394 50.48 942 1,185 412 50.50 949 1,203 431 50.52 956 1,221 450 50.54 963 1,239 470 50.56 970 1,258 489 50.58 978 1,276 508 50.60 985 1,294 528 50.62 992 1,313 548 50.64 999 1,331 568 50.66 1,007 1,350 588 50.68 1,014 1,368 608 50.70 1,022 1,387 628 50.72 1,029 1,406 649 50.74 1,036 1,425 669 50.76 1,044 1,444 690 50.78 1,051 1,463 711 50.80 1,059 1,482 732 50.82 1,066 1,501 754 50.84 1,074 1,521 775 50.86 1,082 1,540 796 50.88 1,089 1,560 818 50.90 1,097 1,579 840 50.92 1,105 1,599 862 50.94 1,112 1,619 884 50.96 1,120 1,639 907 50.98 1,128 1,658 929 51.00 1,136 1,678 952 51.02 1,143 1,698 974 Elevation (feet) Surface (sq-ft) Wetted (sq-ft) Storage (cubic-feet) 51.04 1,151 1,719 997 51.06 1,159 1,739 1,021 51.08 1,167 1,759 1,044 51.10 1,175 1,780 1,067 51.12 1,183 1,800 1,091 51.14 1,191 1,821 1,114 51.16 1,199 1,841 1,138 51.18 1,207 1,862 1,162 51.20 1,215 1,883 1,187 51.22 1,223 1,904 1,211 51.24 1,231 1,925 1,236 51.26 1,239 1,946 1,260 51.28 1,247 1,967 1,285 51.30 1,256 1,988 1,310 51.32 1,264 2,009 1,335 51.34 1,272 2,031 1,361 51.36 1,280 2,052 1,386 51.38 1,289 2,074 1,412 51.40 1,297 2,095 1,438 51.42 1,305 2,117 1,464 51.44 1,314 2,139 1,490 51.46 1,322 2,161 1,516 51.48 1,330 2,182 1,543 51.50 1,339 2,204 1,570 51.52 1,347 2,227 1,596 51.54 1,356 2,249 1,623 51.56 1,364 2,271 1,651 51.58 1,373 2,293 1,678 51.60 1,382 2,316 1,706 51.62 1,390 2,338 1,733 51.64 1,399 2,361 1,761 51.66 1,407 2,384 1,789 51.68 1,416 2,406 1,818 51.70 1,425 2,429 1,846 51.72 1,434 2,452 1,874 51.74 1,442 2,475 1,903 51.76 1,451 2,498 1,932 51.78 1,460 2,521 1,961 51.80 1,469 2,545 1,991 51.82 1,478 2,568 2,020 51.84 1,487 2,591 2,050 51.86 1,496 2,615 2,080 51.88 1,505 2,638 2,110 51.90 1,514 2,662 2,140 51.92 1,523 2,686 2,170 51.94 1,532 2,710 2,201 51.96 1,541 2,733 2,231 51.98 1,550 2,757 2,262 52.00 1,559 2,781 2,293 Type III 24-hr 25-year Rainfall=5.84"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 122HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Summary for Pond S2: Grassed Swale Leaching - S2 Inflow Area = 0.223 ac, 0.00% Impervious, Inflow Depth = 0.40" for 25-year event Inflow = 0.03 cfs @ 12.36 hrs, Volume= 0.007 af Outflow = 0.03 cfs @ 12.41 hrs, Volume= 0.007 af, Atten= 3%, Lag= 3.1 min Discarded = 0.03 cfs @ 12.41 hrs, Volume= 0.007 af Primary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-27.99 hrs, dt= 0.03 hrs Peak Elev= 38.01' @ 12.41 hrs Surf.Area= 642 sf Storage= 6 cf Plug-Flow detention time= 3.0 min calculated for 0.007 af (100% of inflow) Center-of-Mass det. time= 3.0 min ( 968.7 - 965.7 ) Volume Invert Avail.Storage Storage Description #1 38.00' 856 cf Grassed Swale (Irregular) Listed below (Recalc) Elevation Surf.Area Perim. Inc.Store Cum.Store Wet.Area (feet) (sq-ft) (feet) (cubic-feet) (cubic-feet) (sq-ft) 38.00 638 222.0 0 0 638 39.00 1,095 235.0 856 856 1,163 Device Routing Invert Outlet Devices #1 Discarded 38.00'2.410 in/hr Exfiltration over Wetted area Phase-In= 0.01' #2 Primary 38.90'10.0' long (Profile 6) Broad-Crested Rectangular Weir Head (feet) 0.49 0.98 1.48 Coef. (English) 3.12 3.41 3.59 Discarded OutFlow Max=0.03 cfs @ 12.41 hrs HW=38.01' (Free Discharge) 1=Exfiltration (Exfiltration Controls 0.03 cfs) Primary OutFlow Max=0.00 cfs @ 0.00 hrs HW=38.00' TW=0.00' (Dynamic Tailwater) 2=Broad-Crested Rectangular Weir ( Controls 0.00 cfs) Type III 24-hr 25-year Rainfall=5.84"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 123HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Pond S2: Grassed Swale Leaching - S2 Inflow Outflow Discarded Primary Hydrograph Time (hours) 26242220181614121086420Flow (cfs)0.036 0.034 0.032 0.03 0.028 0.026 0.024 0.022 0.02 0.018 0.016 0.014 0.012 0.01 0.008 0.006 0.004 0.002 0 Inflow Area=0.223 ac Peak Elev=38.01' Storage=6 cf 0.03 cfs 0.03 cfs 0.03 cfs 0.00 cfs Pond S2: Grassed Swale Leaching - S2 Total Discarded Primary Stage-Discharge Discharge (cfs) 10Elevation (feet)39 38 Exfiltration Broad-Crested Rectangular Weir Type III 24-hr 25-year Rainfall=5.84"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 124HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Pond S2: Grassed Swale Leaching - S2 Surface Wetted Storage Stage-Area-Storage Storage (cubic-feet) 8007006005004003002001000 Surface/Horizontal/Wetted Area (sq-ft) 1,0008006004002000 Elevation (feet)39 38 Grassed Swale Type III 24-hr 25-year Rainfall=5.84"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 125HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Hydrograph for Pond S2: Grassed Swale Leaching - S2 Time (hours) Inflow (cfs) Storage (cubic-feet) Elevation (feet) Outflow (cfs) Discarded (cfs) Primary (cfs) 0.00 0.00 0 38.00 0.00 0.00 0.00 0.60 0.00 0 38.00 0.00 0.00 0.00 1.20 0.00 0 38.00 0.00 0.00 0.00 1.80 0.00 0 38.00 0.00 0.00 0.00 2.40 0.00 0 38.00 0.00 0.00 0.00 3.00 0.00 0 38.00 0.00 0.00 0.00 3.60 0.00 0 38.00 0.00 0.00 0.00 4.20 0.00 0 38.00 0.00 0.00 0.00 4.80 0.00 0 38.00 0.00 0.00 0.00 5.40 0.00 0 38.00 0.00 0.00 0.00 6.00 0.00 0 38.00 0.00 0.00 0.00 6.60 0.00 0 38.00 0.00 0.00 0.00 7.20 0.00 0 38.00 0.00 0.00 0.00 7.80 0.00 0 38.00 0.00 0.00 0.00 8.40 0.00 0 38.00 0.00 0.00 0.00 9.00 0.00 0 38.00 0.00 0.00 0.00 9.60 0.00 0 38.00 0.00 0.00 0.00 10.20 0.00 0 38.00 0.00 0.00 0.00 10.80 0.00 0 38.00 0.00 0.00 0.00 11.40 0.00 0 38.00 0.00 0.00 0.00 12.00 0.00 0 38.00 0.00 0.00 0.00 12.60 0.02 4 38.01 0.02 0.02 0.00 13.20 0.01 2 38.00 0.01 0.01 0.00 13.80 0.01 2 38.00 0.01 0.01 0.00 14.40 0.01 2 38.00 0.01 0.01 0.00 15.00 0.01 2 38.00 0.01 0.01 0.00 15.60 0.01 2 38.00 0.01 0.01 0.00 16.20 0.01 1 38.00 0.01 0.01 0.00 16.80 0.01 1 38.00 0.01 0.01 0.00 17.40 0.01 1 38.00 0.01 0.01 0.00 18.00 0.01 1 38.00 0.01 0.01 0.00 18.60 0.00 1 38.00 0.00 0.00 0.00 19.20 0.00 1 38.00 0.00 0.00 0.00 19.80 0.00 1 38.00 0.00 0.00 0.00 20.40 0.00 1 38.00 0.00 0.00 0.00 21.00 0.00 1 38.00 0.00 0.00 0.00 21.60 0.00 1 38.00 0.00 0.00 0.00 22.20 0.00 1 38.00 0.00 0.00 0.00 22.80 0.00 1 38.00 0.00 0.00 0.00 23.40 0.00 1 38.00 0.00 0.00 0.00 24.00 0.00 1 38.00 0.00 0.00 0.00 24.60 0.00 0 38.00 0.00 0.00 0.00 25.20 0.00 0 38.00 0.00 0.00 0.00 25.80 0.00 0 38.00 0.00 0.00 0.00 26.40 0.00 0 38.00 0.00 0.00 0.00 27.00 0.00 0 38.00 0.00 0.00 0.00 27.60 0.00 0 38.00 0.00 0.00 0.00 Type III 24-hr 25-year Rainfall=5.84"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 126HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Stage-Discharge for Pond S2: Grassed Swale Leaching - S2 Elevation (feet) Discharge (cfs) Discarded (cfs) Primary (cfs) 38.00 0.00 0.00 0.00 38.01 0.04 0.04 0.00 38.02 0.04 0.04 0.00 38.03 0.04 0.04 0.00 38.04 0.04 0.04 0.00 38.05 0.04 0.04 0.00 38.06 0.04 0.04 0.00 38.07 0.04 0.04 0.00 38.08 0.04 0.04 0.00 38.09 0.04 0.04 0.00 38.10 0.04 0.04 0.00 38.11 0.04 0.04 0.00 38.12 0.04 0.04 0.00 38.13 0.04 0.04 0.00 38.14 0.04 0.04 0.00 38.15 0.04 0.04 0.00 38.16 0.04 0.04 0.00 38.17 0.04 0.04 0.00 38.18 0.04 0.04 0.00 38.19 0.04 0.04 0.00 38.20 0.04 0.04 0.00 38.21 0.04 0.04 0.00 38.22 0.04 0.04 0.00 38.23 0.04 0.04 0.00 38.24 0.04 0.04 0.00 38.25 0.04 0.04 0.00 38.26 0.04 0.04 0.00 38.27 0.04 0.04 0.00 38.28 0.04 0.04 0.00 38.29 0.04 0.04 0.00 38.30 0.04 0.04 0.00 38.31 0.04 0.04 0.00 38.32 0.04 0.04 0.00 38.33 0.05 0.05 0.00 38.34 0.05 0.05 0.00 38.35 0.05 0.05 0.00 38.36 0.05 0.05 0.00 38.37 0.05 0.05 0.00 38.38 0.05 0.05 0.00 38.39 0.05 0.05 0.00 38.40 0.05 0.05 0.00 38.41 0.05 0.05 0.00 38.42 0.05 0.05 0.00 38.43 0.05 0.05 0.00 38.44 0.05 0.05 0.00 38.45 0.05 0.05 0.00 38.46 0.05 0.05 0.00 38.47 0.05 0.05 0.00 38.48 0.05 0.05 0.00 38.49 0.05 0.05 0.00 38.50 0.05 0.05 0.00 38.51 0.05 0.05 0.00 Elevation (feet) Discharge (cfs) Discarded (cfs) Primary (cfs) 38.52 0.05 0.05 0.00 38.53 0.05 0.05 0.00 38.54 0.05 0.05 0.00 38.55 0.05 0.05 0.00 38.56 0.05 0.05 0.00 38.57 0.05 0.05 0.00 38.58 0.05 0.05 0.00 38.59 0.05 0.05 0.00 38.60 0.05 0.05 0.00 38.61 0.05 0.05 0.00 38.62 0.05 0.05 0.00 38.63 0.05 0.05 0.00 38.64 0.05 0.05 0.00 38.65 0.05 0.05 0.00 38.66 0.05 0.05 0.00 38.67 0.06 0.06 0.00 38.68 0.06 0.06 0.00 38.69 0.06 0.06 0.00 38.70 0.06 0.06 0.00 38.71 0.06 0.06 0.00 38.72 0.06 0.06 0.00 38.73 0.06 0.06 0.00 38.74 0.06 0.06 0.00 38.75 0.06 0.06 0.00 38.76 0.06 0.06 0.00 38.77 0.06 0.06 0.00 38.78 0.06 0.06 0.00 38.79 0.06 0.06 0.00 38.80 0.06 0.06 0.00 38.81 0.06 0.06 0.00 38.82 0.06 0.06 0.00 38.83 0.06 0.06 0.00 38.84 0.06 0.06 0.00 38.85 0.06 0.06 0.00 38.86 0.06 0.06 0.00 38.87 0.06 0.06 0.00 38.88 0.06 0.06 0.00 38.89 0.06 0.06 0.00 38.90 0.06 0.06 0.00 38.91 0.09 0.06 0.03 38.92 0.15 0.06 0.09 38.93 0.22 0.06 0.16 38.94 0.31 0.06 0.25 38.95 0.41 0.06 0.35 38.96 0.52 0.06 0.46 38.97 0.64 0.06 0.58 38.98 0.77 0.06 0.71 38.99 0.91 0.06 0.84 39.00 1.05 0.06 0.99 Type III 24-hr 25-year Rainfall=5.84"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 127HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond S2: Grassed Swale Leaching - S2 Elevation (feet) Surface (sq-ft) Wetted (sq-ft) Storage (cubic-feet) 38.00 638 638 0 38.01 642 643 6 38.02 646 648 13 38.03 650 653 19 38.04 654 658 26 38.05 658 664 32 38.06 662 669 39 38.07 666 674 46 38.08 670 679 52 38.09 674 684 59 38.10 678 689 66 38.11 682 694 73 38.12 686 699 79 38.13 690 705 86 38.14 695 710 93 38.15 699 715 100 38.16 703 720 107 38.17 707 725 114 38.18 711 730 121 38.19 715 735 129 38.20 720 741 136 38.21 724 746 143 38.22 728 751 150 38.23 732 756 157 38.24 736 761 165 38.25 741 766 172 38.26 745 772 180 38.27 749 777 187 38.28 754 782 195 38.29 758 787 202 38.30 762 792 210 38.31 767 798 217 38.32 771 803 225 38.33 775 808 233 38.34 780 813 241 38.35 784 818 248 38.36 788 824 256 38.37 793 829 264 38.38 797 834 272 38.39 802 839 280 38.40 806 844 288 38.41 811 850 296 38.42 815 855 304 38.43 819 860 313 38.44 824 865 321 38.45 828 871 329 38.46 833 876 337 38.47 838 881 346 38.48 842 886 354 38.49 847 892 363 38.50 851 897 371 38.51 856 902 380 Elevation (feet) Surface (sq-ft) Wetted (sq-ft) Storage (cubic-feet) 38.52 860 907 388 38.53 865 913 397 38.54 870 918 405 38.55 874 923 414 38.56 879 928 423 38.57 883 934 432 38.58 888 939 441 38.59 893 944 449 38.60 897 949 458 38.61 902 955 467 38.62 907 960 476 38.63 912 965 486 38.64 916 971 495 38.65 921 976 504 38.66 926 981 513 38.67 931 987 522 38.68 935 992 532 38.69 940 997 541 38.70 945 1,002 551 38.71 950 1,008 560 38.72 955 1,013 570 38.73 960 1,018 579 38.74 964 1,024 589 38.75 969 1,029 598 38.76 974 1,034 608 38.77 979 1,040 618 38.78 984 1,045 628 38.79 989 1,050 638 38.80 994 1,056 647 38.81 999 1,061 657 38.82 1,004 1,066 667 38.83 1,009 1,072 678 38.84 1,014 1,077 688 38.85 1,019 1,082 698 38.86 1,024 1,088 708 38.87 1,029 1,093 718 38.88 1,034 1,099 729 38.89 1,039 1,104 739 38.90 1,044 1,109 749 38.91 1,049 1,115 760 38.92 1,054 1,120 770 38.93 1,059 1,125 781 38.94 1,064 1,131 792 38.95 1,069 1,136 802 38.96 1,074 1,142 813 38.97 1,080 1,147 824 38.98 1,085 1,152 834 38.99 1,090 1,158 845 39.00 1,095 1,163 856 Type III 24-hr 25-year Rainfall=5.84"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 128HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Summary for Pond S3: Grassed Swale Leaching - S3 Inflow Area = 1.713 ac, 3.89% Impervious, Inflow Depth = 0.45" for 25-year event Inflow = 0.30 cfs @ 12.40 hrs, Volume= 0.065 af Outflow = 0.13 cfs @ 13.10 hrs, Volume= 0.065 af, Atten= 59%, Lag= 41.5 min Discarded = 0.13 cfs @ 13.10 hrs, Volume= 0.065 af Primary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-27.99 hrs, dt= 0.03 hrs Peak Elev= 28.14' @ 13.10 hrs Surf.Area= 2,119 sf Storage= 283 cf Plug-Flow detention time= 16.1 min calculated for 0.065 af (100% of inflow) Center-of-Mass det. time= 16.0 min ( 976.5 - 960.4 ) Volume Invert Avail.Storage Storage Description #1 28.00' 5,894 cf Grassed Swale (Irregular) Listed below (Recalc) Elevation Surf.Area Perim. Inc.Store Cum.Store Wet.Area (feet) (sq-ft) (feet) (cubic-feet) (cubic-feet) (sq-ft) 28.00 2,004 189.0 0 0 2,004 30.00 4,004 312.0 5,894 5,894 6,933 Device Routing Invert Outlet Devices #1 Discarded 28.00'2.410 in/hr Exfiltration over Wetted area Phase-In= 0.01' #2 Primary 29.90'10.0' long (Profile 6) Broad-Crested Rectangular Weir Head (feet) 0.49 0.98 1.48 Coef. (English) 3.12 3.41 3.59 Discarded OutFlow Max=0.13 cfs @ 13.10 hrs HW=28.14' (Free Discharge) 1=Exfiltration (Exfiltration Controls 0.13 cfs) Primary OutFlow Max=0.00 cfs @ 0.00 hrs HW=28.00' TW=0.00' (Dynamic Tailwater) 2=Broad-Crested Rectangular Weir ( Controls 0.00 cfs) Type III 24-hr 25-year Rainfall=5.84"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 129HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Pond S3: Grassed Swale Leaching - S3 Inflow Outflow Discarded Primary Hydrograph Time (hours) 26242220181614121086420Flow (cfs)0.34 0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 Inflow Area=1.713 ac Peak Elev=28.14' Storage=283 cf 0.30 cfs 0.13 cfs 0.13 cfs 0.00 cfs Pond S3: Grassed Swale Leaching - S3 Total Discarded Primary Stage-Discharge Discharge (cfs) 10Elevation (feet)30 29 28 Exfiltration Broad-Crested Rectangular Weir Type III 24-hr 25-year Rainfall=5.84"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 130HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Pond S3: Grassed Swale Leaching - S3 Surface Wetted Storage Stage-Area-Storage Storage (cubic-feet) 5,5005,0004,5004,0003,5003,0002,5002,0001,5001,0005000 Surface/Horizontal/Wetted Area (sq-ft) 6,0005,0004,0003,0002,0001,0000 Elevation (feet)30 29 28 Grassed Swale Type III 24-hr 25-year Rainfall=5.84"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 131HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Hydrograph for Pond S3: Grassed Swale Leaching - S3 Time (hours) Inflow (cfs) Storage (cubic-feet) Elevation (feet) Outflow (cfs) Discarded (cfs) Primary (cfs) 0.00 0.00 0 28.00 0.00 0.00 0.00 0.60 0.00 0 28.00 0.00 0.00 0.00 1.20 0.00 0 28.00 0.00 0.00 0.00 1.80 0.00 0 28.00 0.00 0.00 0.00 2.40 0.00 0 28.00 0.00 0.00 0.00 3.00 0.00 0 28.00 0.00 0.00 0.00 3.60 0.00 0 28.00 0.00 0.00 0.00 4.20 0.00 0 28.00 0.00 0.00 0.00 4.80 0.00 0 28.00 0.00 0.00 0.00 5.40 0.00 0 28.00 0.00 0.00 0.00 6.00 0.00 0 28.00 0.00 0.00 0.00 6.60 0.00 0 28.00 0.00 0.00 0.00 7.20 0.00 0 28.00 0.00 0.00 0.00 7.80 0.00 0 28.00 0.00 0.00 0.00 8.40 0.00 0 28.00 0.00 0.00 0.00 9.00 0.00 0 28.00 0.00 0.00 0.00 9.60 0.00 0 28.00 0.00 0.00 0.00 10.20 0.00 0 28.00 0.00 0.00 0.00 10.80 0.00 0 28.00 0.00 0.00 0.00 11.40 0.00 0 28.00 0.00 0.00 0.00 12.00 0.00 0 28.00 0.00 0.00 0.00 12.60 0.22 231 28.11 0.12 0.12 0.00 13.20 0.12 281 28.14 0.13 0.13 0.00 13.80 0.11 257 28.12 0.13 0.13 0.00 14.40 0.09 206 28.10 0.12 0.12 0.00 15.00 0.09 141 28.07 0.12 0.12 0.00 15.60 0.07 62 28.03 0.12 0.12 0.00 16.20 0.06 11 28.01 0.06 0.06 0.00 16.80 0.06 10 28.01 0.06 0.06 0.00 17.40 0.05 9 28.00 0.05 0.05 0.00 18.00 0.04 8 28.00 0.04 0.04 0.00 18.60 0.04 7 28.00 0.04 0.04 0.00 19.20 0.04 7 28.00 0.04 0.04 0.00 19.80 0.04 7 28.00 0.04 0.04 0.00 20.40 0.04 6 28.00 0.04 0.04 0.00 21.00 0.03 6 28.00 0.03 0.03 0.00 21.60 0.03 6 28.00 0.03 0.03 0.00 22.20 0.03 6 28.00 0.03 0.03 0.00 22.80 0.03 5 28.00 0.03 0.03 0.00 23.40 0.03 5 28.00 0.03 0.03 0.00 24.00 0.03 5 28.00 0.03 0.03 0.00 24.60 0.00 0 28.00 0.00 0.00 0.00 25.20 0.00 0 28.00 0.00 0.00 0.00 25.80 0.00 0 28.00 0.00 0.00 0.00 26.40 0.00 0 28.00 0.00 0.00 0.00 27.00 0.00 0 28.00 0.00 0.00 0.00 27.60 0.00 0 28.00 0.00 0.00 0.00 Type III 24-hr 25-year Rainfall=5.84"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 132HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Stage-Discharge for Pond S3: Grassed Swale Leaching - S3 Elevation (feet) Discharge (cfs) Discarded (cfs) Primary (cfs) 28.00 0.00 0.00 0.00 28.02 0.11 0.11 0.00 28.04 0.12 0.12 0.00 28.06 0.12 0.12 0.00 28.08 0.12 0.12 0.00 28.10 0.12 0.12 0.00 28.12 0.12 0.12 0.00 28.14 0.13 0.13 0.00 28.16 0.13 0.13 0.00 28.18 0.13 0.13 0.00 28.20 0.13 0.13 0.00 28.22 0.14 0.14 0.00 28.24 0.14 0.14 0.00 28.26 0.14 0.14 0.00 28.28 0.14 0.14 0.00 28.30 0.14 0.14 0.00 28.32 0.15 0.15 0.00 28.34 0.15 0.15 0.00 28.36 0.15 0.15 0.00 28.38 0.15 0.15 0.00 28.40 0.16 0.16 0.00 28.42 0.16 0.16 0.00 28.44 0.16 0.16 0.00 28.46 0.16 0.16 0.00 28.48 0.17 0.17 0.00 28.50 0.17 0.17 0.00 28.52 0.17 0.17 0.00 28.54 0.17 0.17 0.00 28.56 0.18 0.18 0.00 28.58 0.18 0.18 0.00 28.60 0.18 0.18 0.00 28.62 0.18 0.18 0.00 28.64 0.19 0.19 0.00 28.66 0.19 0.19 0.00 28.68 0.19 0.19 0.00 28.70 0.19 0.19 0.00 28.72 0.20 0.20 0.00 28.74 0.20 0.20 0.00 28.76 0.20 0.20 0.00 28.78 0.20 0.20 0.00 28.80 0.21 0.21 0.00 28.82 0.21 0.21 0.00 28.84 0.21 0.21 0.00 28.86 0.21 0.21 0.00 28.88 0.22 0.22 0.00 28.90 0.22 0.22 0.00 28.92 0.22 0.22 0.00 28.94 0.22 0.22 0.00 28.96 0.23 0.23 0.00 28.98 0.23 0.23 0.00 29.00 0.23 0.23 0.00 29.02 0.24 0.24 0.00 Elevation (feet) Discharge (cfs) Discarded (cfs) Primary (cfs) 29.04 0.24 0.24 0.00 29.06 0.24 0.24 0.00 29.08 0.24 0.24 0.00 29.10 0.25 0.25 0.00 29.12 0.25 0.25 0.00 29.14 0.25 0.25 0.00 29.16 0.25 0.25 0.00 29.18 0.26 0.26 0.00 29.20 0.26 0.26 0.00 29.22 0.26 0.26 0.00 29.24 0.27 0.27 0.00 29.26 0.27 0.27 0.00 29.28 0.27 0.27 0.00 29.30 0.28 0.28 0.00 29.32 0.28 0.28 0.00 29.34 0.28 0.28 0.00 29.36 0.28 0.28 0.00 29.38 0.29 0.29 0.00 29.40 0.29 0.29 0.00 29.42 0.29 0.29 0.00 29.44 0.30 0.30 0.00 29.46 0.30 0.30 0.00 29.48 0.30 0.30 0.00 29.50 0.31 0.31 0.00 29.52 0.31 0.31 0.00 29.54 0.31 0.31 0.00 29.56 0.31 0.31 0.00 29.58 0.32 0.32 0.00 29.60 0.32 0.32 0.00 29.62 0.32 0.32 0.00 29.64 0.33 0.33 0.00 29.66 0.33 0.33 0.00 29.68 0.33 0.33 0.00 29.70 0.34 0.34 0.00 29.72 0.34 0.34 0.00 29.74 0.34 0.34 0.00 29.76 0.35 0.35 0.00 29.78 0.35 0.35 0.00 29.80 0.35 0.35 0.00 29.82 0.36 0.36 0.00 29.84 0.36 0.36 0.00 29.86 0.36 0.36 0.00 29.88 0.37 0.37 0.00 29.90 0.37 0.37 0.00 29.92 0.46 0.37 0.09 29.94 0.63 0.38 0.25 29.96 0.84 0.38 0.46 29.98 1.09 0.38 0.71 30.00 1.37 0.39 0.99 Type III 24-hr 25-year Rainfall=5.84"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 133HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond S3: Grassed Swale Leaching - S3 Elevation (feet) Surface (sq-ft) Wetted (sq-ft) Storage (cubic-feet) 28.00 2,004 2,004 0 28.02 2,021 2,041 40 28.04 2,037 2,079 81 28.06 2,054 2,117 122 28.08 2,071 2,155 163 28.10 2,088 2,193 205 28.12 2,105 2,232 246 28.14 2,122 2,270 289 28.16 2,139 2,309 331 28.18 2,156 2,349 374 28.20 2,173 2,388 418 28.22 2,190 2,428 461 28.24 2,208 2,468 505 28.26 2,225 2,508 550 28.28 2,243 2,548 594 28.30 2,260 2,589 639 28.32 2,278 2,630 685 28.34 2,296 2,671 730 28.36 2,313 2,713 776 28.38 2,331 2,754 823 28.40 2,349 2,796 870 28.42 2,367 2,838 917 28.44 2,385 2,881 964 28.46 2,403 2,923 1,012 28.48 2,421 2,966 1,061 28.50 2,440 3,009 1,109 28.52 2,458 3,053 1,158 28.54 2,476 3,096 1,207 28.56 2,495 3,140 1,257 28.58 2,513 3,184 1,307 28.60 2,532 3,229 1,358 28.62 2,551 3,273 1,409 28.64 2,569 3,318 1,460 28.66 2,588 3,363 1,511 28.68 2,607 3,408 1,563 28.70 2,626 3,454 1,616 28.72 2,645 3,500 1,668 28.74 2,664 3,546 1,721 28.76 2,683 3,592 1,775 28.78 2,702 3,639 1,829 28.80 2,722 3,685 1,883 28.82 2,741 3,732 1,938 28.84 2,761 3,780 1,993 28.86 2,780 3,827 2,048 28.88 2,800 3,875 2,104 28.90 2,819 3,923 2,160 28.92 2,839 3,971 2,217 28.94 2,859 4,019 2,274 28.96 2,878 4,068 2,331 28.98 2,898 4,117 2,389 29.00 2,918 4,166 2,447 29.02 2,938 4,216 2,505 Elevation (feet) Surface (sq-ft) Wetted (sq-ft) Storage (cubic-feet) 29.04 2,958 4,265 2,564 29.06 2,979 4,315 2,624 29.08 2,999 4,365 2,684 29.10 3,019 4,416 2,744 29.12 3,040 4,466 2,804 29.14 3,060 4,517 2,865 29.16 3,081 4,568 2,927 29.18 3,101 4,620 2,989 29.20 3,122 4,671 3,051 29.22 3,142 4,723 3,113 29.24 3,163 4,775 3,176 29.26 3,184 4,827 3,240 29.28 3,205 4,880 3,304 29.30 3,226 4,933 3,368 29.32 3,247 4,986 3,433 29.34 3,268 5,039 3,498 29.36 3,289 5,093 3,564 29.38 3,311 5,146 3,630 29.40 3,332 5,200 3,696 29.42 3,353 5,255 3,763 29.44 3,375 5,309 3,830 29.46 3,396 5,364 3,898 29.48 3,418 5,419 3,966 29.50 3,440 5,474 4,035 29.52 3,461 5,530 4,104 29.54 3,483 5,585 4,173 29.56 3,505 5,641 4,243 29.58 3,527 5,697 4,313 29.60 3,549 5,754 4,384 29.62 3,571 5,811 4,455 29.64 3,593 5,867 4,527 29.66 3,616 5,925 4,599 29.68 3,638 5,982 4,672 29.70 3,660 6,040 4,745 29.72 3,683 6,098 4,818 29.74 3,705 6,156 4,892 29.76 3,728 6,214 4,966 29.78 3,750 6,273 5,041 29.80 3,773 6,331 5,116 29.82 3,796 6,391 5,192 29.84 3,819 6,450 5,268 29.86 3,842 6,509 5,345 29.88 3,865 6,569 5,422 29.90 3,888 6,629 5,499 29.92 3,911 6,690 5,577 29.94 3,934 6,750 5,656 29.96 3,957 6,811 5,735 29.98 3,981 6,872 5,814 30.00 4,004 6,933 5,894 Type III 24-hr 25-year Rainfall=5.84"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 134HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Summary for Pond S4: Grassed Swale Leaching - S4 Inflow Area = 0.065 ac, 27.81% Impervious, Inflow Depth = 1.43" for 25-year event Inflow = 0.10 cfs @ 12.10 hrs, Volume= 0.008 af Outflow = 0.02 cfs @ 12.70 hrs, Volume= 0.008 af, Atten= 81%, Lag= 35.6 min Discarded = 0.02 cfs @ 12.70 hrs, Volume= 0.008 af Primary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-27.99 hrs, dt= 0.03 hrs Peak Elev= 56.32' @ 12.70 hrs Surf.Area= 305 sf Storage= 89 cf Plug-Flow detention time= 39.9 min calculated for 0.008 af (100% of inflow) Center-of-Mass det. time= 39.9 min ( 919.1 - 879.2 ) Volume Invert Avail.Storage Storage Description #1 56.00' 342 cf Grassed Swale (Irregular) Listed below (Recalc) Elevation Surf.Area Perim. Inc.Store Cum.Store Wet.Area (feet) (sq-ft) (feet) (cubic-feet) (cubic-feet) (sq-ft) 56.00 248 92.0 0 0 248 57.00 446 105.0 342 342 474 Device Routing Invert Outlet Devices #1 Discarded 56.00'2.410 in/hr Exfiltration over Wetted area Phase-In= 0.01' #2 Primary 56.90'10.0' long (Profile 6) Broad-Crested Rectangular Weir Head (feet) 0.49 0.98 1.48 Coef. (English) 3.12 3.41 3.59 Discarded OutFlow Max=0.02 cfs @ 12.70 hrs HW=56.32' (Free Discharge) 1=Exfiltration (Exfiltration Controls 0.02 cfs) Primary OutFlow Max=0.00 cfs @ 0.00 hrs HW=56.00' TW=0.00' (Dynamic Tailwater) 2=Broad-Crested Rectangular Weir ( Controls 0.00 cfs) Type III 24-hr 25-year Rainfall=5.84"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 135HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Pond S4: Grassed Swale Leaching - S4 Inflow Outflow Discarded Primary Hydrograph Time (hours) 26242220181614121086420Flow (cfs)0.105 0.1 0.095 0.09 0.085 0.08 0.075 0.07 0.065 0.06 0.055 0.05 0.045 0.04 0.035 0.03 0.025 0.02 0.015 0.01 0.005 0 Inflow Area=0.065 ac Peak Elev=56.32' Storage=89 cf 0.10 cfs 0.02 cfs 0.02 cfs 0.00 cfs Pond S4: Grassed Swale Leaching - S4 Total Discarded Primary Stage-Discharge Discharge (cfs) 10Elevation (feet)57 56 Exfiltration Broad-Crested Rectangular Weir Type III 24-hr 25-year Rainfall=5.84"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 136HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Pond S4: Grassed Swale Leaching - S4 Surface Wetted Storage Stage-Area-Storage Storage (cubic-feet) 300250200150100500 Surface/Horizontal/Wetted Area (sq-ft) 450400350300250200150100500 Elevation (feet)57 56 Grassed Swale Type III 24-hr 25-year Rainfall=5.84"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 137HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Hydrograph for Pond S4: Grassed Swale Leaching - S4 Time (hours) Inflow (cfs) Storage (cubic-feet) Elevation (feet) Outflow (cfs) Discarded (cfs) Primary (cfs) 0.00 0.00 0 56.00 0.00 0.00 0.00 0.60 0.00 0 56.00 0.00 0.00 0.00 1.20 0.00 0 56.00 0.00 0.00 0.00 1.80 0.00 0 56.00 0.00 0.00 0.00 2.40 0.00 0 56.00 0.00 0.00 0.00 3.00 0.00 0 56.00 0.00 0.00 0.00 3.60 0.00 0 56.00 0.00 0.00 0.00 4.20 0.00 0 56.00 0.00 0.00 0.00 4.80 0.00 0 56.00 0.00 0.00 0.00 5.40 0.00 0 56.00 0.00 0.00 0.00 6.00 0.00 0 56.00 0.00 0.00 0.00 6.60 0.00 0 56.00 0.00 0.00 0.00 7.20 0.00 0 56.00 0.00 0.00 0.00 7.80 0.00 0 56.00 0.00 0.00 0.00 8.40 0.00 0 56.00 0.00 0.00 0.00 9.00 0.00 0 56.00 0.00 0.00 0.00 9.60 0.00 0 56.00 0.00 0.00 0.00 10.20 0.00 0 56.00 0.00 0.00 0.00 10.80 0.00 0 56.00 0.00 0.00 0.00 11.40 0.00 0 56.00 0.00 0.00 0.00 12.00 0.04 8 56.03 0.01 0.01 0.00 12.60 0.02 88 56.32 0.02 0.02 0.00 13.20 0.01 83 56.30 0.02 0.02 0.00 13.80 0.01 70 56.26 0.02 0.02 0.00 14.40 0.01 53 56.20 0.02 0.02 0.00 15.00 0.01 36 56.14 0.02 0.02 0.00 15.60 0.01 18 56.07 0.01 0.01 0.00 16.20 0.01 1 56.00 0.01 0.01 0.00 16.80 0.00 1 56.00 0.00 0.00 0.00 17.40 0.00 1 56.00 0.00 0.00 0.00 18.00 0.00 1 56.00 0.00 0.00 0.00 18.60 0.00 1 56.00 0.00 0.00 0.00 19.20 0.00 1 56.00 0.00 0.00 0.00 19.80 0.00 1 56.00 0.00 0.00 0.00 20.40 0.00 0 56.00 0.00 0.00 0.00 21.00 0.00 0 56.00 0.00 0.00 0.00 21.60 0.00 0 56.00 0.00 0.00 0.00 22.20 0.00 0 56.00 0.00 0.00 0.00 22.80 0.00 0 56.00 0.00 0.00 0.00 23.40 0.00 0 56.00 0.00 0.00 0.00 24.00 0.00 0 56.00 0.00 0.00 0.00 24.60 0.00 0 56.00 0.00 0.00 0.00 25.20 0.00 0 56.00 0.00 0.00 0.00 25.80 0.00 0 56.00 0.00 0.00 0.00 26.40 0.00 0 56.00 0.00 0.00 0.00 27.00 0.00 0 56.00 0.00 0.00 0.00 27.60 0.00 0 56.00 0.00 0.00 0.00 Type III 24-hr 25-year Rainfall=5.84"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 138HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Stage-Discharge for Pond S4: Grassed Swale Leaching - S4 Elevation (feet) Discharge (cfs) Discarded (cfs) Primary (cfs) 56.00 0.00 0.00 0.00 56.01 0.01 0.01 0.00 56.02 0.01 0.01 0.00 56.03 0.01 0.01 0.00 56.04 0.01 0.01 0.00 56.05 0.01 0.01 0.00 56.06 0.01 0.01 0.00 56.07 0.01 0.01 0.00 56.08 0.01 0.01 0.00 56.09 0.01 0.01 0.00 56.10 0.02 0.02 0.00 56.11 0.02 0.02 0.00 56.12 0.02 0.02 0.00 56.13 0.02 0.02 0.00 56.14 0.02 0.02 0.00 56.15 0.02 0.02 0.00 56.16 0.02 0.02 0.00 56.17 0.02 0.02 0.00 56.18 0.02 0.02 0.00 56.19 0.02 0.02 0.00 56.20 0.02 0.02 0.00 56.21 0.02 0.02 0.00 56.22 0.02 0.02 0.00 56.23 0.02 0.02 0.00 56.24 0.02 0.02 0.00 56.25 0.02 0.02 0.00 56.26 0.02 0.02 0.00 56.27 0.02 0.02 0.00 56.28 0.02 0.02 0.00 56.29 0.02 0.02 0.00 56.30 0.02 0.02 0.00 56.31 0.02 0.02 0.00 56.32 0.02 0.02 0.00 56.33 0.02 0.02 0.00 56.34 0.02 0.02 0.00 56.35 0.02 0.02 0.00 56.36 0.02 0.02 0.00 56.37 0.02 0.02 0.00 56.38 0.02 0.02 0.00 56.39 0.02 0.02 0.00 56.40 0.02 0.02 0.00 56.41 0.02 0.02 0.00 56.42 0.02 0.02 0.00 56.43 0.02 0.02 0.00 56.44 0.02 0.02 0.00 56.45 0.02 0.02 0.00 56.46 0.02 0.02 0.00 56.47 0.02 0.02 0.00 56.48 0.02 0.02 0.00 56.49 0.02 0.02 0.00 56.50 0.02 0.02 0.00 56.51 0.02 0.02 0.00 Elevation (feet) Discharge (cfs) Discarded (cfs) Primary (cfs) 56.52 0.02 0.02 0.00 56.53 0.02 0.02 0.00 56.54 0.02 0.02 0.00 56.55 0.02 0.02 0.00 56.56 0.02 0.02 0.00 56.57 0.02 0.02 0.00 56.58 0.02 0.02 0.00 56.59 0.02 0.02 0.00 56.60 0.02 0.02 0.00 56.61 0.02 0.02 0.00 56.62 0.02 0.02 0.00 56.63 0.02 0.02 0.00 56.64 0.02 0.02 0.00 56.65 0.02 0.02 0.00 56.66 0.02 0.02 0.00 56.67 0.02 0.02 0.00 56.68 0.02 0.02 0.00 56.69 0.02 0.02 0.00 56.70 0.02 0.02 0.00 56.71 0.02 0.02 0.00 56.72 0.02 0.02 0.00 56.73 0.02 0.02 0.00 56.74 0.02 0.02 0.00 56.75 0.02 0.02 0.00 56.76 0.02 0.02 0.00 56.77 0.02 0.02 0.00 56.78 0.02 0.02 0.00 56.79 0.02 0.02 0.00 56.80 0.02 0.02 0.00 56.81 0.02 0.02 0.00 56.82 0.02 0.02 0.00 56.83 0.02 0.02 0.00 56.84 0.02 0.02 0.00 56.85 0.02 0.02 0.00 56.86 0.02 0.02 0.00 56.87 0.02 0.02 0.00 56.88 0.02 0.02 0.00 56.89 0.02 0.02 0.00 56.90 0.03 0.03 0.00 56.91 0.06 0.03 0.03 56.92 0.11 0.03 0.09 56.93 0.19 0.03 0.16 56.94 0.28 0.03 0.25 56.95 0.37 0.03 0.35 56.96 0.48 0.03 0.46 56.97 0.60 0.03 0.58 56.98 0.73 0.03 0.71 56.99 0.87 0.03 0.84 57.00 1.01 0.03 0.99 Type III 24-hr 25-year Rainfall=5.84"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 139HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond S4: Grassed Swale Leaching - S4 Elevation (feet) Surface (sq-ft) Wetted (sq-ft) Storage (cubic-feet) 56.00 248 248 0 56.01 250 250 2 56.02 251 252 5 56.03 253 254 8 56.04 255 256 10 56.05 257 259 13 56.06 258 261 15 56.07 260 263 18 56.08 262 265 20 56.09 263 267 23 56.10 265 269 26 56.11 267 271 28 56.12 269 274 31 56.13 270 276 34 56.14 272 278 36 56.15 274 280 39 56.16 276 282 42 56.17 278 284 45 56.18 279 287 47 56.19 281 289 50 56.20 283 291 53 56.21 285 293 56 56.22 287 295 59 56.23 288 297 62 56.24 290 300 65 56.25 292 302 67 56.26 294 304 70 56.27 296 306 73 56.28 298 308 76 56.29 299 311 79 56.30 301 313 82 56.31 303 315 85 56.32 305 317 88 56.33 307 319 91 56.34 309 322 94 56.35 311 324 98 56.36 313 326 101 56.37 315 328 104 56.38 316 330 107 56.39 318 333 110 56.40 320 335 113 56.41 322 337 117 56.42 324 339 120 56.43 326 342 123 56.44 328 344 126 56.45 330 346 130 56.46 332 348 133 56.47 334 351 136 56.48 336 353 140 56.49 338 355 143 56.50 340 357 146 56.51 342 360 150 Elevation (feet) Surface (sq-ft) Wetted (sq-ft) Storage (cubic-feet) 56.52 344 362 153 56.53 346 364 157 56.54 348 367 160 56.55 350 369 164 56.56 352 371 167 56.57 354 373 171 56.58 356 376 174 56.59 358 378 178 56.60 360 380 181 56.61 362 383 185 56.62 364 385 189 56.63 366 387 192 56.64 368 389 196 56.65 370 392 200 56.66 372 394 203 56.67 374 396 207 56.68 376 399 211 56.69 378 401 215 56.70 381 403 218 56.71 383 406 222 56.72 385 408 226 56.73 387 410 230 56.74 389 413 234 56.75 391 415 238 56.76 393 417 242 56.77 395 420 245 56.78 397 422 249 56.79 400 424 253 56.80 402 427 257 56.81 404 429 261 56.82 406 431 266 56.83 408 434 270 56.84 410 436 274 56.85 413 438 278 56.86 415 441 282 56.87 417 443 286 56.88 419 446 290 56.89 421 448 294 56.90 424 450 299 56.91 426 453 303 56.92 428 455 307 56.93 430 458 312 56.94 432 460 316 56.95 435 462 320 56.96 437 465 325 56.97 439 467 329 56.98 441 470 333 56.99 444 472 338 57.00 446 474 342 Type III 24-hr 25-year Rainfall=5.84"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 140HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Summary for Pond S5: Grassed Swale Leaching - S5 Inflow Area = 0.521 ac, 5.97% Impervious, Inflow Depth = 0.56" for 25-year event Inflow = 0.14 cfs @ 12.28 hrs, Volume= 0.024 af Outflow = 0.04 cfs @ 13.26 hrs, Volume= 0.024 af, Atten= 68%, Lag= 58.7 min Discarded = 0.04 cfs @ 13.26 hrs, Volume= 0.024 af Primary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-27.99 hrs, dt= 0.03 hrs Peak Elev= 48.22' @ 13.26 hrs Surf.Area= 775 sf Storage= 164 cf Plug-Flow detention time= 30.9 min calculated for 0.024 af (100% of inflow) Center-of-Mass det. time= 30.9 min ( 971.2 - 940.3 ) Volume Invert Avail.Storage Storage Description #1 48.00' 849 cf Grassed Swale (Irregular) Listed below (Recalc) Elevation Surf.Area Perim. Inc.Store Cum.Store Wet.Area (feet) (sq-ft) (feet) (cubic-feet) (cubic-feet) (sq-ft) 48.00 721 125.0 0 0 721 49.00 983 137.0 849 849 1,003 Device Routing Invert Outlet Devices #1 Discarded 48.00'2.410 in/hr Exfiltration over Wetted area Phase-In= 0.01' #2 Primary 48.90'10.0' long (Profile 6) Broad-Crested Rectangular Weir Head (feet) 0.49 0.98 1.48 Coef. (English) 3.12 3.41 3.59 Discarded OutFlow Max=0.04 cfs @ 13.26 hrs HW=48.22' (Free Discharge) 1=Exfiltration (Exfiltration Controls 0.04 cfs) Primary OutFlow Max=0.00 cfs @ 0.00 hrs HW=48.00' TW=0.00' (Dynamic Tailwater) 2=Broad-Crested Rectangular Weir ( Controls 0.00 cfs) Type III 24-hr 25-year Rainfall=5.84"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 141HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Pond S5: Grassed Swale Leaching - S5 Inflow Outflow Discarded Primary Hydrograph Time (hours) 26242220181614121086420Flow (cfs)0.15 0.14 0.13 0.12 0.11 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0 Inflow Area=0.521 ac Peak Elev=48.22' Storage=164 cf 0.14 cfs 0.04 cfs 0.04 cfs 0.00 cfs Pond S5: Grassed Swale Leaching - S5 Total Discarded Primary Stage-Discharge Discharge (cfs) 10Elevation (feet)49 48 Exfiltration Broad-Crested Rectangular Weir Type III 24-hr 25-year Rainfall=5.84"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 142HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Pond S5: Grassed Swale Leaching - S5 Surface Wetted Storage Stage-Area-Storage Storage (cubic-feet) 8007006005004003002001000 Surface/Horizontal/Wetted Area (sq-ft) 1,0009008007006005004003002001000 Elevation (feet)49 48 Grassed Swale Type III 24-hr 25-year Rainfall=5.84"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 143HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Hydrograph for Pond S5: Grassed Swale Leaching - S5 Time (hours) Inflow (cfs) Storage (cubic-feet) Elevation (feet) Outflow (cfs) Discarded (cfs) Primary (cfs) 0.00 0.00 0 48.00 0.00 0.00 0.00 0.60 0.00 0 48.00 0.00 0.00 0.00 1.20 0.00 0 48.00 0.00 0.00 0.00 1.80 0.00 0 48.00 0.00 0.00 0.00 2.40 0.00 0 48.00 0.00 0.00 0.00 3.00 0.00 0 48.00 0.00 0.00 0.00 3.60 0.00 0 48.00 0.00 0.00 0.00 4.20 0.00 0 48.00 0.00 0.00 0.00 4.80 0.00 0 48.00 0.00 0.00 0.00 5.40 0.00 0 48.00 0.00 0.00 0.00 6.00 0.00 0 48.00 0.00 0.00 0.00 6.60 0.00 0 48.00 0.00 0.00 0.00 7.20 0.00 0 48.00 0.00 0.00 0.00 7.80 0.00 0 48.00 0.00 0.00 0.00 8.40 0.00 0 48.00 0.00 0.00 0.00 9.00 0.00 0 48.00 0.00 0.00 0.00 9.60 0.00 0 48.00 0.00 0.00 0.00 10.20 0.00 0 48.00 0.00 0.00 0.00 10.80 0.00 0 48.00 0.00 0.00 0.00 11.40 0.00 0 48.00 0.00 0.00 0.00 12.00 0.00 0 48.00 0.00 0.00 0.00 12.60 0.07 144 48.19 0.04 0.04 0.00 13.20 0.04 164 48.22 0.04 0.04 0.00 13.80 0.04 160 48.21 0.04 0.04 0.00 14.40 0.03 143 48.19 0.04 0.04 0.00 15.00 0.03 120 48.16 0.04 0.04 0.00 15.60 0.03 90 48.12 0.04 0.04 0.00 16.20 0.02 51 48.07 0.04 0.04 0.00 16.80 0.02 7 48.01 0.04 0.04 0.00 17.40 0.02 3 48.00 0.02 0.02 0.00 18.00 0.01 3 48.00 0.02 0.02 0.00 18.60 0.01 3 48.00 0.01 0.01 0.00 19.20 0.01 2 48.00 0.01 0.01 0.00 19.80 0.01 2 48.00 0.01 0.01 0.00 20.40 0.01 2 48.00 0.01 0.01 0.00 21.00 0.01 2 48.00 0.01 0.01 0.00 21.60 0.01 2 48.00 0.01 0.01 0.00 22.20 0.01 2 48.00 0.01 0.01 0.00 22.80 0.01 2 48.00 0.01 0.01 0.00 23.40 0.01 2 48.00 0.01 0.01 0.00 24.00 0.01 2 48.00 0.01 0.01 0.00 24.60 0.00 0 48.00 0.00 0.00 0.00 25.20 0.00 0 48.00 0.00 0.00 0.00 25.80 0.00 0 48.00 0.00 0.00 0.00 26.40 0.00 0 48.00 0.00 0.00 0.00 27.00 0.00 0 48.00 0.00 0.00 0.00 27.60 0.00 0 48.00 0.00 0.00 0.00 Type III 24-hr 25-year Rainfall=5.84"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 144HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Stage-Discharge for Pond S5: Grassed Swale Leaching - S5 Elevation (feet) Discharge (cfs) Discarded (cfs) Primary (cfs) 48.00 0.00 0.00 0.00 48.01 0.04 0.04 0.00 48.02 0.04 0.04 0.00 48.03 0.04 0.04 0.00 48.04 0.04 0.04 0.00 48.05 0.04 0.04 0.00 48.06 0.04 0.04 0.00 48.07 0.04 0.04 0.00 48.08 0.04 0.04 0.00 48.09 0.04 0.04 0.00 48.10 0.04 0.04 0.00 48.11 0.04 0.04 0.00 48.12 0.04 0.04 0.00 48.13 0.04 0.04 0.00 48.14 0.04 0.04 0.00 48.15 0.04 0.04 0.00 48.16 0.04 0.04 0.00 48.17 0.04 0.04 0.00 48.18 0.04 0.04 0.00 48.19 0.04 0.04 0.00 48.20 0.04 0.04 0.00 48.21 0.04 0.04 0.00 48.22 0.04 0.04 0.00 48.23 0.04 0.04 0.00 48.24 0.04 0.04 0.00 48.25 0.04 0.04 0.00 48.26 0.04 0.04 0.00 48.27 0.04 0.04 0.00 48.28 0.04 0.04 0.00 48.29 0.04 0.04 0.00 48.30 0.04 0.04 0.00 48.31 0.04 0.04 0.00 48.32 0.05 0.05 0.00 48.33 0.05 0.05 0.00 48.34 0.05 0.05 0.00 48.35 0.05 0.05 0.00 48.36 0.05 0.05 0.00 48.37 0.05 0.05 0.00 48.38 0.05 0.05 0.00 48.39 0.05 0.05 0.00 48.40 0.05 0.05 0.00 48.41 0.05 0.05 0.00 48.42 0.05 0.05 0.00 48.43 0.05 0.05 0.00 48.44 0.05 0.05 0.00 48.45 0.05 0.05 0.00 48.46 0.05 0.05 0.00 48.47 0.05 0.05 0.00 48.48 0.05 0.05 0.00 48.49 0.05 0.05 0.00 48.50 0.05 0.05 0.00 48.51 0.05 0.05 0.00 Elevation (feet) Discharge (cfs) Discarded (cfs) Primary (cfs) 48.52 0.05 0.05 0.00 48.53 0.05 0.05 0.00 48.54 0.05 0.05 0.00 48.55 0.05 0.05 0.00 48.56 0.05 0.05 0.00 48.57 0.05 0.05 0.00 48.58 0.05 0.05 0.00 48.59 0.05 0.05 0.00 48.60 0.05 0.05 0.00 48.61 0.05 0.05 0.00 48.62 0.05 0.05 0.00 48.63 0.05 0.05 0.00 48.64 0.05 0.05 0.00 48.65 0.05 0.05 0.00 48.66 0.05 0.05 0.00 48.67 0.05 0.05 0.00 48.68 0.05 0.05 0.00 48.69 0.05 0.05 0.00 48.70 0.05 0.05 0.00 48.71 0.05 0.05 0.00 48.72 0.05 0.05 0.00 48.73 0.05 0.05 0.00 48.74 0.05 0.05 0.00 48.75 0.05 0.05 0.00 48.76 0.05 0.05 0.00 48.77 0.05 0.05 0.00 48.78 0.05 0.05 0.00 48.79 0.05 0.05 0.00 48.80 0.05 0.05 0.00 48.81 0.05 0.05 0.00 48.82 0.05 0.05 0.00 48.83 0.05 0.05 0.00 48.84 0.05 0.05 0.00 48.85 0.05 0.05 0.00 48.86 0.05 0.05 0.00 48.87 0.05 0.05 0.00 48.88 0.05 0.05 0.00 48.89 0.05 0.05 0.00 48.90 0.05 0.05 0.00 48.91 0.09 0.05 0.03 48.92 0.14 0.05 0.09 48.93 0.22 0.05 0.16 48.94 0.30 0.05 0.25 48.95 0.40 0.06 0.35 48.96 0.51 0.06 0.46 48.97 0.63 0.06 0.58 48.98 0.76 0.06 0.71 48.99 0.90 0.06 0.84 49.00 1.04 0.06 0.99 Type III 24-hr 25-year Rainfall=5.84"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 145HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond S5: Grassed Swale Leaching - S5 Elevation (feet) Surface (sq-ft) Wetted (sq-ft) Storage (cubic-feet) 48.00 721 721 0 48.01 723 724 7 48.02 726 726 14 48.03 728 729 22 48.04 731 732 29 48.05 733 735 36 48.06 736 737 44 48.07 738 740 51 48.08 740 743 58 48.09 743 745 66 48.10 745 748 73 48.11 748 751 81 48.12 750 754 88 48.13 753 756 96 48.14 755 759 103 48.15 758 762 111 48.16 760 764 118 48.17 763 767 126 48.18 765 770 134 48.19 768 773 141 48.20 770 775 149 48.21 773 778 157 48.22 775 781 165 48.23 778 784 172 48.24 780 786 180 48.25 783 789 188 48.26 785 792 196 48.27 788 795 204 48.28 790 797 212 48.29 793 800 219 48.30 795 803 227 48.31 798 806 235 48.32 800 809 243 48.33 803 811 251 48.34 806 814 259 48.35 808 817 267 48.36 811 820 276 48.37 813 822 284 48.38 816 825 292 48.39 818 828 300 48.40 821 831 308 48.41 824 834 316 48.42 826 836 325 48.43 829 839 333 48.44 831 842 341 48.45 834 845 350 48.46 836 848 358 48.47 839 851 366 48.48 842 853 375 48.49 844 856 383 48.50 847 859 392 48.51 850 862 400 Elevation (feet) Surface (sq-ft) Wetted (sq-ft) Storage (cubic-feet) 48.52 852 865 409 48.53 855 867 417 48.54 857 870 426 48.55 860 873 434 48.56 863 876 443 48.57 865 879 451 48.58 868 882 460 48.59 871 884 469 48.60 873 887 478 48.61 876 890 486 48.62 879 893 495 48.63 881 896 504 48.64 884 899 513 48.65 887 902 522 48.66 889 904 530 48.67 892 907 539 48.68 895 910 548 48.69 897 913 557 48.70 900 916 566 48.71 903 919 575 48.72 906 922 584 48.73 908 925 593 48.74 911 927 602 48.75 914 930 612 48.76 916 933 621 48.77 919 936 630 48.78 922 939 639 48.79 925 942 648 48.80 927 945 658 48.81 930 948 667 48.82 933 951 676 48.83 936 954 686 48.84 938 956 695 48.85 941 959 704 48.86 944 962 714 48.87 947 965 723 48.88 949 968 733 48.89 952 971 742 48.90 955 974 752 48.91 958 977 761 48.92 961 980 771 48.93 963 983 781 48.94 966 986 790 48.95 969 989 800 48.96 972 992 810 48.97 975 995 819 48.98 977 998 829 48.99 980 1,000 839 49.00 983 1,003 849 Type III 24-hr 100-year Rainfall=7.31"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 146HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 1S: Post-Development Watershed - S1 Runoff = 1.20 cfs @ 12.15 hrs, Volume= 0.103 af, Depth= 2.23" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-27.99 hrs, dt= 0.03 hrs Type III 24-hr 100-year Rainfall=7.31" Area (sf) CN Description 5,977 98 Paved parking, HSG A 18,300 39 >75% Grass cover, Good, HSG A 24,277 54 Weighted Average 18,300 75.38% Pervious Area 5,977 24.62% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 8.0 50 0.0200 0.10 Sheet Flow, Grass: Dense n= 0.240 P2= 3.36" 1.5 110 0.0300 1.21 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 9.5 160 Total Subcatchment 1S: Post-Development Watershed - S1 Runoff Hydrograph Time (hours) 26242220181614121086420Flow (cfs)1 0 Type III 24-hr 100-year Rainfall=7.31" Runoff Area=24,277 sf Runoff Volume=0.103 af Runoff Depth=2.23" Flow Length=160' Tc=9.5 min CN=54 1.20 cfs Type III 24-hr 100-year Rainfall=7.31"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 147HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Hydrograph for Subcatchment 1S: Post-Development Watershed - S1 Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 0.00 0.00 0.00 0.00 0.30 0.02 0.00 0.00 0.60 0.04 0.00 0.00 0.90 0.07 0.00 0.00 1.20 0.09 0.00 0.00 1.50 0.11 0.00 0.00 1.80 0.13 0.00 0.00 2.10 0.15 0.00 0.00 2.40 0.18 0.00 0.00 2.70 0.20 0.00 0.00 3.00 0.22 0.00 0.00 3.30 0.25 0.00 0.00 3.60 0.28 0.00 0.00 3.90 0.30 0.00 0.00 4.20 0.33 0.00 0.00 4.50 0.36 0.00 0.00 4.80 0.39 0.00 0.00 5.10 0.43 0.00 0.00 5.40 0.46 0.00 0.00 5.70 0.49 0.00 0.00 6.00 0.53 0.00 0.00 6.30 0.56 0.00 0.00 6.60 0.60 0.00 0.00 6.90 0.65 0.00 0.00 7.20 0.69 0.00 0.00 7.50 0.74 0.00 0.00 7.80 0.80 0.00 0.00 8.10 0.85 0.00 0.00 8.40 0.92 0.00 0.00 8.70 0.99 0.00 0.00 9.00 1.07 0.00 0.00 9.30 1.15 0.00 0.00 9.60 1.25 0.00 0.00 9.90 1.35 0.00 0.00 10.20 1.46 0.00 0.00 10.50 1.58 0.00 0.00 10.80 1.72 0.00 0.00 11.10 1.88 0.00 0.01 11.40 2.09 0.02 0.03 11.70 2.48 0.06 0.09 12.00 3.65 0.36 0.47 12.30 4.83 0.84 0.79 12.60 5.22 1.03 0.33 12.90 5.43 1.13 0.20 13.20 5.59 1.22 0.16 13.50 5.73 1.29 0.14 13.80 5.85 1.36 0.13 14.10 5.96 1.42 0.11 14.40 6.06 1.48 0.11 14.70 6.16 1.53 0.10 15.00 6.24 1.58 0.09 15.30 6.32 1.62 0.08 Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 15.60 6.39 1.67 0.08 15.90 6.46 1.70 0.07 16.20 6.51 1.74 0.06 16.50 6.57 1.77 0.06 16.80 6.62 1.80 0.06 17.10 6.66 1.83 0.05 17.40 6.71 1.85 0.05 17.70 6.75 1.88 0.05 18.00 6.78 1.90 0.04 18.30 6.82 1.92 0.04 18.60 6.85 1.94 0.04 18.90 6.88 1.96 0.04 19.20 6.92 1.98 0.04 19.50 6.95 2.00 0.04 19.80 6.98 2.02 0.03 20.10 7.01 2.03 0.03 20.40 7.03 2.05 0.03 20.70 7.06 2.07 0.03 21.00 7.09 2.08 0.03 21.30 7.11 2.10 0.03 21.60 7.14 2.12 0.03 21.90 7.16 2.13 0.03 22.20 7.18 2.15 0.03 22.50 7.21 2.16 0.03 22.80 7.23 2.17 0.03 23.10 7.25 2.19 0.03 23.40 7.27 2.20 0.02 23.70 7.29 2.21 0.02 24.00 7.31 2.23 0.02 24.30 7.31 2.23 0.00 24.60 7.31 2.23 0.00 24.90 7.31 2.23 0.00 25.20 7.31 2.23 0.00 25.50 7.31 2.23 0.00 25.80 7.31 2.23 0.00 26.10 7.31 2.23 0.00 26.40 7.31 2.23 0.00 26.70 7.31 2.23 0.00 27.00 7.31 2.23 0.00 27.30 7.31 2.23 0.00 27.60 7.31 2.23 0.00 27.90 7.31 2.23 0.00 Type III 24-hr 100-year Rainfall=7.31"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 148HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 2S: Post-Development Watershed - S2 Runoff = 0.12 cfs @ 12.13 hrs, Volume= 0.016 af, Depth= 0.88" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-27.99 hrs, dt= 0.03 hrs Type III 24-hr 100-year Rainfall=7.31" Area (sf) CN Description 9,726 39 >75% Grass cover, Good, HSG A 9,726 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, (minimum) 5.0 0 Total, Increased to minimum Tc = 6.0 min Subcatchment 2S: Post-Development Watershed - S2 Runoff Hydrograph Time (hours) 26242220181614121086420Flow (cfs)0.13 0.12 0.11 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0 Type III 24-hr 100-year Rainfall=7.31" Runoff Area=9,726 sf Runoff Volume=0.016 af Runoff Depth=0.88" Tc=6.0 min CN=39 0.12 cfs Type III 24-hr 100-year Rainfall=7.31"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 149HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Hydrograph for Subcatchment 2S: Post-Development Watershed - S2 Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 0.00 0.00 0.00 0.00 0.30 0.02 0.00 0.00 0.60 0.04 0.00 0.00 0.90 0.07 0.00 0.00 1.20 0.09 0.00 0.00 1.50 0.11 0.00 0.00 1.80 0.13 0.00 0.00 2.10 0.15 0.00 0.00 2.40 0.18 0.00 0.00 2.70 0.20 0.00 0.00 3.00 0.22 0.00 0.00 3.30 0.25 0.00 0.00 3.60 0.28 0.00 0.00 3.90 0.30 0.00 0.00 4.20 0.33 0.00 0.00 4.50 0.36 0.00 0.00 4.80 0.39 0.00 0.00 5.10 0.43 0.00 0.00 5.40 0.46 0.00 0.00 5.70 0.49 0.00 0.00 6.00 0.53 0.00 0.00 6.30 0.56 0.00 0.00 6.60 0.60 0.00 0.00 6.90 0.65 0.00 0.00 7.20 0.69 0.00 0.00 7.50 0.74 0.00 0.00 7.80 0.80 0.00 0.00 8.10 0.85 0.00 0.00 8.40 0.92 0.00 0.00 8.70 0.99 0.00 0.00 9.00 1.07 0.00 0.00 9.30 1.15 0.00 0.00 9.60 1.25 0.00 0.00 9.90 1.35 0.00 0.00 10.20 1.46 0.00 0.00 10.50 1.58 0.00 0.00 10.80 1.72 0.00 0.00 11.10 1.88 0.00 0.00 11.40 2.09 0.00 0.00 11.70 2.48 0.00 0.00 12.00 3.65 0.02 0.01 12.30 4.83 0.17 0.10 12.60 5.22 0.25 0.05 12.90 5.43 0.29 0.04 13.20 5.59 0.33 0.03 13.50 5.73 0.37 0.03 13.80 5.85 0.40 0.03 14.10 5.96 0.44 0.02 14.40 6.06 0.46 0.02 14.70 6.16 0.49 0.02 15.00 6.24 0.52 0.02 15.30 6.32 0.54 0.02 Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 15.60 6.39 0.56 0.02 15.90 6.46 0.58 0.01 16.20 6.51 0.60 0.01 16.50 6.57 0.62 0.01 16.80 6.62 0.64 0.01 17.10 6.66 0.65 0.01 17.40 6.71 0.67 0.01 17.70 6.75 0.68 0.01 18.00 6.78 0.69 0.01 18.30 6.82 0.70 0.01 18.60 6.85 0.72 0.01 18.90 6.88 0.73 0.01 19.20 6.92 0.74 0.01 19.50 6.95 0.75 0.01 19.80 6.98 0.76 0.01 20.10 7.01 0.77 0.01 20.40 7.03 0.78 0.01 20.70 7.06 0.79 0.01 21.00 7.09 0.80 0.01 21.30 7.11 0.81 0.01 21.60 7.14 0.82 0.01 21.90 7.16 0.83 0.01 22.20 7.18 0.84 0.01 22.50 7.21 0.84 0.01 22.80 7.23 0.85 0.01 23.10 7.25 0.86 0.01 23.40 7.27 0.87 0.01 23.70 7.29 0.88 0.01 24.00 7.31 0.88 0.01 24.30 7.31 0.88 0.00 24.60 7.31 0.88 0.00 24.90 7.31 0.88 0.00 25.20 7.31 0.88 0.00 25.50 7.31 0.88 0.00 25.80 7.31 0.88 0.00 26.10 7.31 0.88 0.00 26.40 7.31 0.88 0.00 26.70 7.31 0.88 0.00 27.00 7.31 0.88 0.00 27.30 7.31 0.88 0.00 27.60 7.31 0.88 0.00 27.90 7.31 0.88 0.00 Type III 24-hr 100-year Rainfall=7.31"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 150HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 3S: Post-Development Watershed - S3 Runoff = 0.98 cfs @ 12.21 hrs, Volume= 0.137 af, Depth= 0.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-27.99 hrs, dt= 0.03 hrs Type III 24-hr 100-year Rainfall=7.31" Area (sf) CN Description 2,900 98 Paved parking, HSG A 46,737 39 >75% Grass cover, Good, HSG A 25,000 36 Woods, Fair, HSG A 74,637 40 Weighted Average 71,737 96.11% Pervious Area 2,900 3.89% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.1 50 0.0400 0.14 Sheet Flow, Grass: Dense n= 0.240 P2= 3.36" 3.6 300 0.0400 1.40 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 0.7 150 0.1000 3.61 45.08 Channel Flow, Area= 12.5 sf Perim= 5.0' r= 2.50' n= 0.240 Sheet flow over Dense Grass 10.4 500 Total Subcatchment 3S: Post-Development Watershed - S3 Runoff Hydrograph Time (hours) 26242220181614121086420Flow (cfs)1 0 Type III 24-hr 100-year Rainfall=7.31" Runoff Area=74,637 sf Runoff Volume=0.137 af Runoff Depth=0.96" Flow Length=500' Tc=10.4 min CN=40 0.98 cfs Type III 24-hr 100-year Rainfall=7.31"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 151HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Hydrograph for Subcatchment 3S: Post-Development Watershed - S3 Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 0.00 0.00 0.00 0.00 0.30 0.02 0.00 0.00 0.60 0.04 0.00 0.00 0.90 0.07 0.00 0.00 1.20 0.09 0.00 0.00 1.50 0.11 0.00 0.00 1.80 0.13 0.00 0.00 2.10 0.15 0.00 0.00 2.40 0.18 0.00 0.00 2.70 0.20 0.00 0.00 3.00 0.22 0.00 0.00 3.30 0.25 0.00 0.00 3.60 0.28 0.00 0.00 3.90 0.30 0.00 0.00 4.20 0.33 0.00 0.00 4.50 0.36 0.00 0.00 4.80 0.39 0.00 0.00 5.10 0.43 0.00 0.00 5.40 0.46 0.00 0.00 5.70 0.49 0.00 0.00 6.00 0.53 0.00 0.00 6.30 0.56 0.00 0.00 6.60 0.60 0.00 0.00 6.90 0.65 0.00 0.00 7.20 0.69 0.00 0.00 7.50 0.74 0.00 0.00 7.80 0.80 0.00 0.00 8.10 0.85 0.00 0.00 8.40 0.92 0.00 0.00 8.70 0.99 0.00 0.00 9.00 1.07 0.00 0.00 9.30 1.15 0.00 0.00 9.60 1.25 0.00 0.00 9.90 1.35 0.00 0.00 10.20 1.46 0.00 0.00 10.50 1.58 0.00 0.00 10.80 1.72 0.00 0.00 11.10 1.88 0.00 0.00 11.40 2.09 0.00 0.00 11.70 2.48 0.00 0.00 12.00 3.65 0.03 0.04 12.30 4.83 0.20 0.92 12.60 5.22 0.29 0.49 12.90 5.43 0.34 0.31 13.20 5.59 0.38 0.25 13.50 5.73 0.42 0.23 13.80 5.85 0.46 0.21 14.10 5.96 0.49 0.19 14.40 6.06 0.52 0.18 14.70 6.16 0.55 0.17 15.00 6.24 0.58 0.16 15.30 6.32 0.60 0.15 Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 15.60 6.39 0.63 0.14 15.90 6.46 0.65 0.12 16.20 6.51 0.67 0.11 16.50 6.57 0.69 0.11 16.80 6.62 0.70 0.10 17.10 6.66 0.72 0.09 17.40 6.71 0.73 0.09 17.70 6.75 0.75 0.08 18.00 6.78 0.76 0.08 18.30 6.82 0.77 0.07 18.60 6.85 0.79 0.07 18.90 6.88 0.80 0.07 19.20 6.92 0.81 0.07 19.50 6.95 0.82 0.07 19.80 6.98 0.83 0.06 20.10 7.01 0.84 0.06 20.40 7.03 0.85 0.06 20.70 7.06 0.86 0.06 21.00 7.09 0.87 0.06 21.30 7.11 0.88 0.06 21.60 7.14 0.89 0.06 21.90 7.16 0.90 0.05 22.20 7.18 0.91 0.05 22.50 7.21 0.92 0.05 22.80 7.23 0.93 0.05 23.10 7.25 0.94 0.05 23.40 7.27 0.95 0.05 23.70 7.29 0.95 0.04 24.00 7.31 0.96 0.04 24.30 7.31 0.96 0.00 24.60 7.31 0.96 0.00 24.90 7.31 0.96 0.00 25.20 7.31 0.96 0.00 25.50 7.31 0.96 0.00 25.80 7.31 0.96 0.00 26.10 7.31 0.96 0.00 26.40 7.31 0.96 0.00 26.70 7.31 0.96 0.00 27.00 7.31 0.96 0.00 27.30 7.31 0.96 0.00 27.60 7.31 0.96 0.00 27.90 7.31 0.96 0.00 Type III 24-hr 100-year Rainfall=7.31"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 152HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 4S: Post-Development Watershed - S4 Runoff = 0.17 cfs @ 12.10 hrs, Volume= 0.013 af, Depth= 2.32" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-27.99 hrs, dt= 0.03 hrs Type III 24-hr 100-year Rainfall=7.31" Area (sf) CN Description 791 98 Paved parking, HSG A 2,053 39 >75% Grass cover, Good, HSG A 2,844 55 Weighted Average 2,053 72.19% Pervious Area 791 27.81% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, (minimum) 5.0 0 Total, Increased to minimum Tc = 6.0 min Subcatchment 4S: Post-Development Watershed - S4 Runoff Hydrograph Time (hours) 26242220181614121086420Flow (cfs)0.18 0.17 0.16 0.15 0.14 0.13 0.12 0.11 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0 Type III 24-hr 100-year Rainfall=7.31" Runoff Area=2,844 sf Runoff Volume=0.013 af Runoff Depth=2.32" Tc=6.0 min CN=55 0.17 cfs Type III 24-hr 100-year Rainfall=7.31"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 153HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Hydrograph for Subcatchment 4S: Post-Development Watershed - S4 Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 0.00 0.00 0.00 0.00 0.30 0.02 0.00 0.00 0.60 0.04 0.00 0.00 0.90 0.07 0.00 0.00 1.20 0.09 0.00 0.00 1.50 0.11 0.00 0.00 1.80 0.13 0.00 0.00 2.10 0.15 0.00 0.00 2.40 0.18 0.00 0.00 2.70 0.20 0.00 0.00 3.00 0.22 0.00 0.00 3.30 0.25 0.00 0.00 3.60 0.28 0.00 0.00 3.90 0.30 0.00 0.00 4.20 0.33 0.00 0.00 4.50 0.36 0.00 0.00 4.80 0.39 0.00 0.00 5.10 0.43 0.00 0.00 5.40 0.46 0.00 0.00 5.70 0.49 0.00 0.00 6.00 0.53 0.00 0.00 6.30 0.56 0.00 0.00 6.60 0.60 0.00 0.00 6.90 0.65 0.00 0.00 7.20 0.69 0.00 0.00 7.50 0.74 0.00 0.00 7.80 0.80 0.00 0.00 8.10 0.85 0.00 0.00 8.40 0.92 0.00 0.00 8.70 0.99 0.00 0.00 9.00 1.07 0.00 0.00 9.30 1.15 0.00 0.00 9.60 1.25 0.00 0.00 9.90 1.35 0.00 0.00 10.20 1.46 0.00 0.00 10.50 1.58 0.00 0.00 10.80 1.72 0.00 0.00 11.10 1.88 0.01 0.00 11.40 2.09 0.02 0.00 11.70 2.48 0.08 0.02 12.00 3.65 0.40 0.09 12.30 4.83 0.90 0.08 12.60 5.22 1.09 0.03 12.90 5.43 1.20 0.02 13.20 5.59 1.29 0.02 13.50 5.73 1.36 0.02 13.80 5.85 1.43 0.02 14.10 5.96 1.50 0.01 14.40 6.06 1.56 0.01 14.70 6.16 1.61 0.01 15.00 6.24 1.66 0.01 15.30 6.32 1.71 0.01 Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 15.60 6.39 1.75 0.01 15.90 6.46 1.79 0.01 16.20 6.51 1.82 0.01 16.50 6.57 1.85 0.01 16.80 6.62 1.88 0.01 17.10 6.66 1.91 0.01 17.40 6.71 1.94 0.01 17.70 6.75 1.96 0.01 18.00 6.78 1.99 0.00 18.30 6.82 2.01 0.00 18.60 6.85 2.03 0.00 18.90 6.88 2.05 0.00 19.20 6.92 2.07 0.00 19.50 6.95 2.09 0.00 19.80 6.98 2.11 0.00 20.10 7.01 2.13 0.00 20.40 7.03 2.14 0.00 20.70 7.06 2.16 0.00 21.00 7.09 2.18 0.00 21.30 7.11 2.20 0.00 21.60 7.14 2.21 0.00 21.90 7.16 2.23 0.00 22.20 7.18 2.24 0.00 22.50 7.21 2.26 0.00 22.80 7.23 2.27 0.00 23.10 7.25 2.28 0.00 23.40 7.27 2.30 0.00 23.70 7.29 2.31 0.00 24.00 7.31 2.32 0.00 24.30 7.31 2.32 0.00 24.60 7.31 2.32 0.00 24.90 7.31 2.32 0.00 25.20 7.31 2.32 0.00 25.50 7.31 2.32 0.00 25.80 7.31 2.32 0.00 26.10 7.31 2.32 0.00 26.40 7.31 2.32 0.00 26.70 7.31 2.32 0.00 27.00 7.31 2.32 0.00 27.30 7.31 2.32 0.00 27.60 7.31 2.32 0.00 27.90 7.31 2.32 0.00 Type III 24-hr 100-year Rainfall=7.31"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 154HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 5S: Post-Development Watershed - S5 Runoff = 0.47 cfs @ 12.12 hrs, Volume= 0.049 af, Depth= 1.13" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-27.99 hrs, dt= 0.03 hrs Type III 24-hr 100-year Rainfall=7.31" Area (sf) CN Description 1,355 98 Paved parking, HSG A 16,825 39 >75% Grass cover, Good, HSG A 4,500 36 Woods, Fair, HSG A 22,680 42 Weighted Average 21,325 94.03% Pervious Area 1,355 5.97% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, (minimum) 5.0 0 Total, Increased to minimum Tc = 6.0 min Subcatchment 5S: Post-Development Watershed - S5 Runoff Hydrograph Time (hours) 26242220181614121086420Flow (cfs)0.52 0.5 0.48 0.46 0.44 0.42 0.4 0.38 0.36 0.34 0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 Type III 24-hr 100-year Rainfall=7.31" Runoff Area=22,680 sf Runoff Volume=0.049 af Runoff Depth=1.13" Tc=6.0 min CN=42 0.47 cfs Type III 24-hr 100-year Rainfall=7.31"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 155HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Hydrograph for Subcatchment 5S: Post-Development Watershed - S5 Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 0.00 0.00 0.00 0.00 0.30 0.02 0.00 0.00 0.60 0.04 0.00 0.00 0.90 0.07 0.00 0.00 1.20 0.09 0.00 0.00 1.50 0.11 0.00 0.00 1.80 0.13 0.00 0.00 2.10 0.15 0.00 0.00 2.40 0.18 0.00 0.00 2.70 0.20 0.00 0.00 3.00 0.22 0.00 0.00 3.30 0.25 0.00 0.00 3.60 0.28 0.00 0.00 3.90 0.30 0.00 0.00 4.20 0.33 0.00 0.00 4.50 0.36 0.00 0.00 4.80 0.39 0.00 0.00 5.10 0.43 0.00 0.00 5.40 0.46 0.00 0.00 5.70 0.49 0.00 0.00 6.00 0.53 0.00 0.00 6.30 0.56 0.00 0.00 6.60 0.60 0.00 0.00 6.90 0.65 0.00 0.00 7.20 0.69 0.00 0.00 7.50 0.74 0.00 0.00 7.80 0.80 0.00 0.00 8.10 0.85 0.00 0.00 8.40 0.92 0.00 0.00 8.70 0.99 0.00 0.00 9.00 1.07 0.00 0.00 9.30 1.15 0.00 0.00 9.60 1.25 0.00 0.00 9.90 1.35 0.00 0.00 10.20 1.46 0.00 0.00 10.50 1.58 0.00 0.00 10.80 1.72 0.00 0.00 11.10 1.88 0.00 0.00 11.40 2.09 0.00 0.00 11.70 2.48 0.00 0.00 12.00 3.65 0.05 0.13 12.30 4.83 0.27 0.32 12.60 5.22 0.37 0.13 12.90 5.43 0.43 0.10 13.20 5.59 0.48 0.08 13.50 5.73 0.52 0.08 13.80 5.85 0.57 0.07 14.10 5.96 0.60 0.06 14.40 6.06 0.64 0.06 14.70 6.16 0.67 0.06 15.00 6.24 0.70 0.05 15.30 6.32 0.73 0.05 Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 15.60 6.39 0.76 0.05 15.90 6.46 0.78 0.04 16.20 6.51 0.80 0.04 16.50 6.57 0.82 0.04 16.80 6.62 0.84 0.03 17.10 6.66 0.86 0.03 17.40 6.71 0.88 0.03 17.70 6.75 0.89 0.03 18.00 6.78 0.91 0.03 18.30 6.82 0.92 0.02 18.60 6.85 0.93 0.02 18.90 6.88 0.95 0.02 19.20 6.92 0.96 0.02 19.50 6.95 0.97 0.02 19.80 6.98 0.99 0.02 20.10 7.01 1.00 0.02 20.40 7.03 1.01 0.02 20.70 7.06 1.02 0.02 21.00 7.09 1.03 0.02 21.30 7.11 1.04 0.02 21.60 7.14 1.05 0.02 21.90 7.16 1.06 0.02 22.20 7.18 1.07 0.02 22.50 7.21 1.08 0.02 22.80 7.23 1.09 0.02 23.10 7.25 1.10 0.02 23.40 7.27 1.11 0.02 23.70 7.29 1.12 0.01 24.00 7.31 1.13 0.01 24.30 7.31 1.13 0.00 24.60 7.31 1.13 0.00 24.90 7.31 1.13 0.00 25.20 7.31 1.13 0.00 25.50 7.31 1.13 0.00 25.80 7.31 1.13 0.00 26.10 7.31 1.13 0.00 26.40 7.31 1.13 0.00 26.70 7.31 1.13 0.00 27.00 7.31 1.13 0.00 27.30 7.31 1.13 0.00 27.60 7.31 1.13 0.00 27.90 7.31 1.13 0.00 Type III 24-hr 100-year Rainfall=7.31"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 156HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 6S: Post-Development Watershed - Non-Recharge Areas Only Runoff = 1.21 cfs @ 12.38 hrs, Volume= 0.220 af, Depth= 0.73" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-27.99 hrs, dt= 0.03 hrs Type III 24-hr 100-year Rainfall=7.31" Area (sf) CN Description 609 98 Paved parking, HSG A 30,000 39 >75% Grass cover, Good, HSG A 127,481 36 Woods, Fair, HSG A 158,090 37 Weighted Average 157,481 99.61% Pervious Area 609 0.39% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.3 50 0.1000 0.13 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 3.36" 6.3 500 0.0700 1.32 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 12.6 550 Total Subcatchment 6S: Post-Development Watershed - Non-Recharge Areas Only Runoff Hydrograph Time (hours) 26242220181614121086420Flow (cfs)1 0 Type III 24-hr 100-year Rainfall=7.31" Runoff Area=158,090 sf Runoff Volume=0.220 af Runoff Depth=0.73" Flow Length=550' Tc=12.6 min CN=37 1.21 cfs Type III 24-hr 100-year Rainfall=7.31"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 157HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Hydrograph for Subcatchment 6S: Post-Development Watershed - Non-Recharge Areas Only Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 0.00 0.00 0.00 0.00 0.30 0.02 0.00 0.00 0.60 0.04 0.00 0.00 0.90 0.07 0.00 0.00 1.20 0.09 0.00 0.00 1.50 0.11 0.00 0.00 1.80 0.13 0.00 0.00 2.10 0.15 0.00 0.00 2.40 0.18 0.00 0.00 2.70 0.20 0.00 0.00 3.00 0.22 0.00 0.00 3.30 0.25 0.00 0.00 3.60 0.28 0.00 0.00 3.90 0.30 0.00 0.00 4.20 0.33 0.00 0.00 4.50 0.36 0.00 0.00 4.80 0.39 0.00 0.00 5.10 0.43 0.00 0.00 5.40 0.46 0.00 0.00 5.70 0.49 0.00 0.00 6.00 0.53 0.00 0.00 6.30 0.56 0.00 0.00 6.60 0.60 0.00 0.00 6.90 0.65 0.00 0.00 7.20 0.69 0.00 0.00 7.50 0.74 0.00 0.00 7.80 0.80 0.00 0.00 8.10 0.85 0.00 0.00 8.40 0.92 0.00 0.00 8.70 0.99 0.00 0.00 9.00 1.07 0.00 0.00 9.30 1.15 0.00 0.00 9.60 1.25 0.00 0.00 9.90 1.35 0.00 0.00 10.20 1.46 0.00 0.00 10.50 1.58 0.00 0.00 10.80 1.72 0.00 0.00 11.10 1.88 0.00 0.00 11.40 2.09 0.00 0.00 11.70 2.48 0.00 0.00 12.00 3.65 0.00 0.00 12.30 4.83 0.11 1.16 12.60 5.22 0.17 0.86 12.90 5.43 0.21 0.52 13.20 5.59 0.25 0.41 13.50 5.73 0.28 0.38 13.80 5.85 0.31 0.36 14.10 5.96 0.33 0.33 14.40 6.06 0.36 0.31 14.70 6.16 0.38 0.29 15.00 6.24 0.41 0.28 15.30 6.32 0.43 0.26 Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 15.60 6.39 0.45 0.24 15.90 6.46 0.46 0.22 16.20 6.51 0.48 0.20 16.50 6.57 0.50 0.19 16.80 6.62 0.51 0.18 17.10 6.66 0.52 0.17 17.40 6.71 0.54 0.16 17.70 6.75 0.55 0.15 18.00 6.78 0.56 0.14 18.30 6.82 0.57 0.13 18.60 6.85 0.58 0.13 18.90 6.88 0.59 0.12 19.20 6.92 0.60 0.12 19.50 6.95 0.61 0.12 19.80 6.98 0.62 0.11 20.10 7.01 0.63 0.11 20.40 7.03 0.64 0.11 20.70 7.06 0.65 0.11 21.00 7.09 0.65 0.10 21.30 7.11 0.66 0.10 21.60 7.14 0.67 0.10 21.90 7.16 0.68 0.10 22.20 7.18 0.69 0.09 22.50 7.21 0.69 0.09 22.80 7.23 0.70 0.09 23.10 7.25 0.71 0.09 23.40 7.27 0.72 0.08 23.70 7.29 0.72 0.08 24.00 7.31 0.73 0.08 24.30 7.31 0.73 0.01 24.60 7.31 0.73 0.00 24.90 7.31 0.73 0.00 25.20 7.31 0.73 0.00 25.50 7.31 0.73 0.00 25.80 7.31 0.73 0.00 26.10 7.31 0.73 0.00 26.40 7.31 0.73 0.00 26.70 7.31 0.73 0.00 27.00 7.31 0.73 0.00 27.30 7.31 0.73 0.00 27.60 7.31 0.73 0.00 27.90 7.31 0.73 0.00 Type III 24-hr 100-year Rainfall=7.31"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 158HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment 9S: Pre-Development Watershed - Entire Site Runoff = 4.67 cfs @ 12.36 hrs, Volume= 0.802 af, Depth= 0.80" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-27.99 hrs, dt= 0.03 hrs Type III 24-hr 100-year Rainfall=7.31" Area (sf) CN Description 401,143 36 Woods, Fair, HSG A 120,000 43 Woods/grass comb., Fair, HSG A 521,143 38 Weighted Average 521,143 100.00% Pervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 7.0 50 0.0780 0.12 Sheet Flow, Woods: Light underbrush n= 0.400 P2= 3.36" 6.2 520 0.0780 1.40 Shallow Concentrated Flow, Woodland Kv= 5.0 fps 13.2 570 Total Subcatchment 9S: Pre-Development Watershed - Entire Site Runoff Hydrograph Time (hours) 26242220181614121086420Flow (cfs)5 4 3 2 1 0 Type III 24-hr 100-year Rainfall=7.31" Runoff Area=521,143 sf Runoff Volume=0.802 af Runoff Depth=0.80" Flow Length=570' Slope=0.0780 '/' Tc=13.2 min CN=38 4.67 cfs Type III 24-hr 100-year Rainfall=7.31"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 159HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Hydrograph for Subcatchment 9S: Pre-Development Watershed - Entire Site Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 0.00 0.00 0.00 0.00 0.30 0.02 0.00 0.00 0.60 0.04 0.00 0.00 0.90 0.07 0.00 0.00 1.20 0.09 0.00 0.00 1.50 0.11 0.00 0.00 1.80 0.13 0.00 0.00 2.10 0.15 0.00 0.00 2.40 0.18 0.00 0.00 2.70 0.20 0.00 0.00 3.00 0.22 0.00 0.00 3.30 0.25 0.00 0.00 3.60 0.28 0.00 0.00 3.90 0.30 0.00 0.00 4.20 0.33 0.00 0.00 4.50 0.36 0.00 0.00 4.80 0.39 0.00 0.00 5.10 0.43 0.00 0.00 5.40 0.46 0.00 0.00 5.70 0.49 0.00 0.00 6.00 0.53 0.00 0.00 6.30 0.56 0.00 0.00 6.60 0.60 0.00 0.00 6.90 0.65 0.00 0.00 7.20 0.69 0.00 0.00 7.50 0.74 0.00 0.00 7.80 0.80 0.00 0.00 8.10 0.85 0.00 0.00 8.40 0.92 0.00 0.00 8.70 0.99 0.00 0.00 9.00 1.07 0.00 0.00 9.30 1.15 0.00 0.00 9.60 1.25 0.00 0.00 9.90 1.35 0.00 0.00 10.20 1.46 0.00 0.00 10.50 1.58 0.00 0.00 10.80 1.72 0.00 0.00 11.10 1.88 0.00 0.00 11.40 2.09 0.00 0.00 11.70 2.48 0.00 0.00 12.00 3.65 0.01 0.01 12.30 4.83 0.14 4.60 12.60 5.22 0.21 3.26 12.90 5.43 0.25 1.89 13.20 5.59 0.29 1.50 13.50 5.73 0.32 1.38 13.80 5.85 0.35 1.29 14.10 5.96 0.38 1.17 14.40 6.06 0.41 1.10 14.70 6.16 0.44 1.05 15.00 6.24 0.46 0.99 15.30 6.32 0.48 0.92 Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 15.60 6.39 0.50 0.85 15.90 6.46 0.52 0.77 16.20 6.51 0.54 0.70 16.50 6.57 0.56 0.66 16.80 6.62 0.57 0.63 17.10 6.66 0.59 0.59 17.40 6.71 0.60 0.56 17.70 6.75 0.61 0.52 18.00 6.78 0.62 0.48 18.30 6.82 0.64 0.45 18.60 6.85 0.65 0.44 18.90 6.88 0.66 0.43 19.20 6.92 0.67 0.42 19.50 6.95 0.68 0.41 19.80 6.98 0.69 0.40 20.10 7.01 0.70 0.39 20.40 7.03 0.71 0.38 20.70 7.06 0.72 0.37 21.00 7.09 0.73 0.37 21.30 7.11 0.73 0.36 21.60 7.14 0.74 0.35 21.90 7.16 0.75 0.34 22.20 7.18 0.76 0.33 22.50 7.21 0.77 0.32 22.80 7.23 0.78 0.31 23.10 7.25 0.78 0.30 23.40 7.27 0.79 0.29 23.70 7.29 0.80 0.28 24.00 7.31 0.80 0.27 24.30 7.31 0.80 0.04 24.60 7.31 0.80 0.00 24.90 7.31 0.80 0.00 25.20 7.31 0.80 0.00 25.50 7.31 0.80 0.00 25.80 7.31 0.80 0.00 26.10 7.31 0.80 0.00 26.40 7.31 0.80 0.00 26.70 7.31 0.80 0.00 27.00 7.31 0.80 0.00 27.30 7.31 0.80 0.00 27.60 7.31 0.80 0.00 27.90 7.31 0.80 0.00 Type III 24-hr 100-year Rainfall=7.31"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 160HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Summary for Reach 1R: Post-Development Peak Discharge Rate Inflow Area = 6.709 ac, 3.98% Impervious, Inflow Depth = 0.39" for 100-year event Inflow = 1.21 cfs @ 12.38 hrs, Volume= 0.220 af Outflow = 1.21 cfs @ 12.38 hrs, Volume= 0.220 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-27.99 hrs, dt= 0.03 hrs Reach 1R: Post-Development Peak Discharge Rate Inflow Outflow Hydrograph Time (hours) 26242220181614121086420Flow (cfs)1 0 Inflow Area=6.709 ac 1.21 cfs 1.21 cfs Type III 24-hr 100-year Rainfall=7.31"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 161HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Hydrograph for Reach 1R: Post-Development Peak Discharge Rate Time (hours) Inflow (cfs) Elevation (feet) Outflow (cfs) 0.00 0.00 0.00 0.30 0.00 0.00 0.60 0.00 0.00 0.90 0.00 0.00 1.20 0.00 0.00 1.50 0.00 0.00 1.80 0.00 0.00 2.10 0.00 0.00 2.40 0.00 0.00 2.70 0.00 0.00 3.00 0.00 0.00 3.30 0.00 0.00 3.60 0.00 0.00 3.90 0.00 0.00 4.20 0.00 0.00 4.50 0.00 0.00 4.80 0.00 0.00 5.10 0.00 0.00 5.40 0.00 0.00 5.70 0.00 0.00 6.00 0.00 0.00 6.30 0.00 0.00 6.60 0.00 0.00 6.90 0.00 0.00 7.20 0.00 0.00 7.50 0.00 0.00 7.80 0.00 0.00 8.10 0.00 0.00 8.40 0.00 0.00 8.70 0.00 0.00 9.00 0.00 0.00 9.30 0.00 0.00 9.60 0.00 0.00 9.90 0.00 0.00 10.20 0.00 0.00 10.50 0.00 0.00 10.80 0.00 0.00 11.10 0.00 0.00 11.40 0.00 0.00 11.70 0.00 0.00 12.00 0.00 0.00 12.30 1.16 1.16 12.60 0.86 0.86 12.90 0.52 0.52 13.20 0.41 0.41 13.50 0.38 0.38 13.80 0.36 0.36 14.10 0.33 0.33 14.40 0.31 0.31 14.70 0.29 0.29 15.00 0.28 0.28 15.30 0.26 0.26 Time (hours) Inflow (cfs) Elevation (feet) Outflow (cfs) 15.60 0.24 0.24 15.90 0.22 0.22 16.20 0.20 0.20 16.50 0.19 0.19 16.80 0.18 0.18 17.10 0.17 0.17 17.40 0.16 0.16 17.70 0.15 0.15 18.00 0.14 0.14 18.30 0.13 0.13 18.60 0.13 0.13 18.90 0.12 0.12 19.20 0.12 0.12 19.50 0.12 0.12 19.80 0.11 0.11 20.10 0.11 0.11 20.40 0.11 0.11 20.70 0.11 0.11 21.00 0.10 0.10 21.30 0.10 0.10 21.60 0.10 0.10 21.90 0.10 0.10 22.20 0.09 0.09 22.50 0.09 0.09 22.80 0.09 0.09 23.10 0.09 0.09 23.40 0.08 0.08 23.70 0.08 0.08 24.00 0.08 0.08 24.30 0.01 0.01 24.60 0.00 0.00 24.90 0.00 0.00 25.20 0.00 0.00 25.50 0.00 0.00 25.80 0.00 0.00 26.10 0.00 0.00 26.40 0.00 0.00 26.70 0.00 0.00 27.00 0.00 0.00 27.30 0.00 0.00 27.60 0.00 0.00 27.90 0.00 0.00 Type III 24-hr 100-year Rainfall=7.31"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 162HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Summary for Reach 9R: Pre-Development Peak Discharge Rate Inflow Area = 11.964 ac, 0.00% Impervious, Inflow Depth = 0.80" for 100-year event Inflow = 4.67 cfs @ 12.36 hrs, Volume= 0.802 af Outflow = 4.67 cfs @ 12.36 hrs, Volume= 0.802 af, Atten= 0%, Lag= 0.0 min Routing by Dyn-Stor-Ind method, Time Span= 0.00-27.99 hrs, dt= 0.03 hrs Reach 9R: Pre-Development Peak Discharge Rate Inflow Outflow Hydrograph Time (hours) 26242220181614121086420Flow (cfs)5 4 3 2 1 0 Inflow Area=11.964 ac 4.67 cfs 4.67 cfs Type III 24-hr 100-year Rainfall=7.31"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 163HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Hydrograph for Reach 9R: Pre-Development Peak Discharge Rate Time (hours) Inflow (cfs) Elevation (feet) Outflow (cfs) 0.00 0.00 0.00 0.30 0.00 0.00 0.60 0.00 0.00 0.90 0.00 0.00 1.20 0.00 0.00 1.50 0.00 0.00 1.80 0.00 0.00 2.10 0.00 0.00 2.40 0.00 0.00 2.70 0.00 0.00 3.00 0.00 0.00 3.30 0.00 0.00 3.60 0.00 0.00 3.90 0.00 0.00 4.20 0.00 0.00 4.50 0.00 0.00 4.80 0.00 0.00 5.10 0.00 0.00 5.40 0.00 0.00 5.70 0.00 0.00 6.00 0.00 0.00 6.30 0.00 0.00 6.60 0.00 0.00 6.90 0.00 0.00 7.20 0.00 0.00 7.50 0.00 0.00 7.80 0.00 0.00 8.10 0.00 0.00 8.40 0.00 0.00 8.70 0.00 0.00 9.00 0.00 0.00 9.30 0.00 0.00 9.60 0.00 0.00 9.90 0.00 0.00 10.20 0.00 0.00 10.50 0.00 0.00 10.80 0.00 0.00 11.10 0.00 0.00 11.40 0.00 0.00 11.70 0.00 0.00 12.00 0.01 0.01 12.30 4.60 4.60 12.60 3.26 3.26 12.90 1.89 1.89 13.20 1.50 1.50 13.50 1.38 1.38 13.80 1.29 1.29 14.10 1.17 1.17 14.40 1.10 1.10 14.70 1.05 1.05 15.00 0.99 0.99 15.30 0.92 0.92 Time (hours) Inflow (cfs) Elevation (feet) Outflow (cfs) 15.60 0.85 0.85 15.90 0.77 0.77 16.20 0.70 0.70 16.50 0.66 0.66 16.80 0.63 0.63 17.10 0.59 0.59 17.40 0.56 0.56 17.70 0.52 0.52 18.00 0.48 0.48 18.30 0.45 0.45 18.60 0.44 0.44 18.90 0.43 0.43 19.20 0.42 0.42 19.50 0.41 0.41 19.80 0.40 0.40 20.10 0.39 0.39 20.40 0.38 0.38 20.70 0.37 0.37 21.00 0.37 0.37 21.30 0.36 0.36 21.60 0.35 0.35 21.90 0.34 0.34 22.20 0.33 0.33 22.50 0.32 0.32 22.80 0.31 0.31 23.10 0.30 0.30 23.40 0.29 0.29 23.70 0.28 0.28 24.00 0.27 0.27 24.30 0.04 0.04 24.60 0.00 0.00 24.90 0.00 0.00 25.20 0.00 0.00 25.50 0.00 0.00 25.80 0.00 0.00 26.10 0.00 0.00 26.40 0.00 0.00 26.70 0.00 0.00 27.00 0.00 0.00 27.30 0.00 0.00 27.60 0.00 0.00 27.90 0.00 0.00 Type III 24-hr 100-year Rainfall=7.31"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 164HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Summary for Pond S1: Grassed Swale Leaching - S1 Inflow Area = 0.557 ac, 24.62% Impervious, Inflow Depth = 2.23" for 100-year event Inflow = 1.20 cfs @ 12.15 hrs, Volume= 0.103 af Outflow = 0.13 cfs @ 13.68 hrs, Volume= 0.103 af, Atten= 89%, Lag= 92.0 min Discarded = 0.13 cfs @ 13.68 hrs, Volume= 0.103 af Primary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-27.99 hrs, dt= 0.03 hrs Peak Elev= 51.67' @ 13.68 hrs Surf.Area= 1,411 sf Storage= 1,802 cf Plug-Flow detention time= 169.9 min calculated for 0.103 af (100% of inflow) Center-of-Mass det. time= 169.7 min ( 1,038.9 - 869.2 ) Volume Invert Avail.Storage Storage Description #1 50.00' 2,293 cf Grassed Swale (Irregular) Listed below (Recalc) Elevation Surf.Area Perim. Inc.Store Cum.Store Wet.Area (feet) (sq-ft) (feet) (cubic-feet) (cubic-feet) (sq-ft) 50.00 779 139.0 0 0 779 52.00 1,559 210.0 2,293 2,293 2,781 Device Routing Invert Outlet Devices #1 Discarded 50.00'2.410 in/hr Exfiltration over Wetted area Phase-In= 0.01' #2 Primary 51.90'10.0' long (Profile 6) Broad-Crested Rectangular Weir Head (feet) 0.49 0.98 1.48 Coef. (English) 3.12 3.41 3.59 Discarded OutFlow Max=0.13 cfs @ 13.68 hrs HW=51.67' (Free Discharge) 1=Exfiltration (Exfiltration Controls 0.13 cfs) Primary OutFlow Max=0.00 cfs @ 0.00 hrs HW=50.00' TW=0.00' (Dynamic Tailwater) 2=Broad-Crested Rectangular Weir ( Controls 0.00 cfs) Type III 24-hr 100-year Rainfall=7.31"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 165HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Pond S1: Grassed Swale Leaching - S1 Inflow Outflow Discarded Primary Hydrograph Time (hours) 26242220181614121086420Flow (cfs)1 0 Inflow Area=0.557 ac Peak Elev=51.67' Storage=1,802 cf 1.20 cfs 0.13 cfs 0.13 cfs 0.00 cfs Pond S1: Grassed Swale Leaching - S1 Total Discarded Primary Stage-Discharge Discharge (cfs) 10Elevation (feet)52 51 50 Exfiltration Broad-Crested Rectangular Weir Type III 24-hr 100-year Rainfall=7.31"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 166HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Pond S1: Grassed Swale Leaching - S1 Surface Wetted Storage Stage-Area-Storage Storage (cubic-feet) 2,2002,0001,8001,6001,4001,2001,0008006004002000 Surface/Horizontal/Wetted Area (sq-ft) 2,5002,0001,5001,0005000 Elevation (feet)52 51 50 Grassed Swale Type III 24-hr 100-year Rainfall=7.31"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 167HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Hydrograph for Pond S1: Grassed Swale Leaching - S1 Time (hours) Inflow (cfs) Storage (cubic-feet) Elevation (feet) Outflow (cfs) Discarded (cfs) Primary (cfs) 0.00 0.00 0 50.00 0.00 0.00 0.00 0.60 0.00 0 50.00 0.00 0.00 0.00 1.20 0.00 0 50.00 0.00 0.00 0.00 1.80 0.00 0 50.00 0.00 0.00 0.00 2.40 0.00 0 50.00 0.00 0.00 0.00 3.00 0.00 0 50.00 0.00 0.00 0.00 3.60 0.00 0 50.00 0.00 0.00 0.00 4.20 0.00 0 50.00 0.00 0.00 0.00 4.80 0.00 0 50.00 0.00 0.00 0.00 5.40 0.00 0 50.00 0.00 0.00 0.00 6.00 0.00 0 50.00 0.00 0.00 0.00 6.60 0.00 0 50.00 0.00 0.00 0.00 7.20 0.00 0 50.00 0.00 0.00 0.00 7.80 0.00 0 50.00 0.00 0.00 0.00 8.40 0.00 0 50.00 0.00 0.00 0.00 9.00 0.00 0 50.00 0.00 0.00 0.00 9.60 0.00 0 50.00 0.00 0.00 0.00 10.20 0.00 0 50.00 0.00 0.00 0.00 10.80 0.00 0 50.00 0.00 0.00 0.00 11.40 0.03 4 50.00 0.02 0.02 0.00 12.00 0.47 207 50.25 0.06 0.06 0.00 12.60 0.33 1,614 51.53 0.13 0.13 0.00 13.20 0.16 1,783 51.66 0.13 0.13 0.00 13.80 0.13 1,801 51.67 0.13 0.13 0.00 14.40 0.11 1,762 51.64 0.13 0.13 0.00 15.00 0.09 1,695 51.59 0.13 0.13 0.00 15.60 0.08 1,604 51.53 0.12 0.12 0.00 16.20 0.06 1,491 51.44 0.12 0.12 0.00 16.80 0.06 1,367 51.34 0.11 0.11 0.00 17.40 0.05 1,241 51.24 0.11 0.11 0.00 18.00 0.04 1,113 51.14 0.10 0.10 0.00 18.60 0.04 986 51.03 0.10 0.10 0.00 19.20 0.04 867 50.92 0.09 0.09 0.00 19.80 0.03 756 50.82 0.08 0.08 0.00 20.40 0.03 653 50.72 0.08 0.08 0.00 21.00 0.03 557 50.63 0.07 0.07 0.00 21.60 0.03 467 50.54 0.07 0.07 0.00 22.20 0.03 385 50.45 0.06 0.06 0.00 22.80 0.03 307 50.37 0.06 0.06 0.00 23.40 0.02 235 50.28 0.06 0.06 0.00 24.00 0.02 168 50.21 0.05 0.05 0.00 24.60 0.00 71 50.09 0.05 0.05 0.00 25.20 0.00 0 50.00 0.00 0.00 0.00 25.80 0.00 0 50.00 0.00 0.00 0.00 26.40 0.00 0 50.00 0.00 0.00 0.00 27.00 0.00 0 50.00 0.00 0.00 0.00 27.60 0.00 0 50.00 0.00 0.00 0.00 Type III 24-hr 100-year Rainfall=7.31"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 168HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Stage-Discharge for Pond S1: Grassed Swale Leaching - S1 Elevation (feet) Discharge (cfs) Discarded (cfs) Primary (cfs) 50.00 0.00 0.00 0.00 50.02 0.04 0.04 0.00 50.04 0.05 0.05 0.00 50.06 0.05 0.05 0.00 50.08 0.05 0.05 0.00 50.10 0.05 0.05 0.00 50.12 0.05 0.05 0.00 50.14 0.05 0.05 0.00 50.16 0.05 0.05 0.00 50.18 0.05 0.05 0.00 50.20 0.05 0.05 0.00 50.22 0.05 0.05 0.00 50.24 0.05 0.05 0.00 50.26 0.06 0.06 0.00 50.28 0.06 0.06 0.00 50.30 0.06 0.06 0.00 50.32 0.06 0.06 0.00 50.34 0.06 0.06 0.00 50.36 0.06 0.06 0.00 50.38 0.06 0.06 0.00 50.40 0.06 0.06 0.00 50.42 0.06 0.06 0.00 50.44 0.06 0.06 0.00 50.46 0.07 0.07 0.00 50.48 0.07 0.07 0.00 50.50 0.07 0.07 0.00 50.52 0.07 0.07 0.00 50.54 0.07 0.07 0.00 50.56 0.07 0.07 0.00 50.58 0.07 0.07 0.00 50.60 0.07 0.07 0.00 50.62 0.07 0.07 0.00 50.64 0.07 0.07 0.00 50.66 0.08 0.08 0.00 50.68 0.08 0.08 0.00 50.70 0.08 0.08 0.00 50.72 0.08 0.08 0.00 50.74 0.08 0.08 0.00 50.76 0.08 0.08 0.00 50.78 0.08 0.08 0.00 50.80 0.08 0.08 0.00 50.82 0.08 0.08 0.00 50.84 0.08 0.08 0.00 50.86 0.09 0.09 0.00 50.88 0.09 0.09 0.00 50.90 0.09 0.09 0.00 50.92 0.09 0.09 0.00 50.94 0.09 0.09 0.00 50.96 0.09 0.09 0.00 50.98 0.09 0.09 0.00 51.00 0.09 0.09 0.00 51.02 0.09 0.09 0.00 Elevation (feet) Discharge (cfs) Discarded (cfs) Primary (cfs) 51.04 0.10 0.10 0.00 51.06 0.10 0.10 0.00 51.08 0.10 0.10 0.00 51.10 0.10 0.10 0.00 51.12 0.10 0.10 0.00 51.14 0.10 0.10 0.00 51.16 0.10 0.10 0.00 51.18 0.10 0.10 0.00 51.20 0.11 0.11 0.00 51.22 0.11 0.11 0.00 51.24 0.11 0.11 0.00 51.26 0.11 0.11 0.00 51.28 0.11 0.11 0.00 51.30 0.11 0.11 0.00 51.32 0.11 0.11 0.00 51.34 0.11 0.11 0.00 51.36 0.11 0.11 0.00 51.38 0.12 0.12 0.00 51.40 0.12 0.12 0.00 51.42 0.12 0.12 0.00 51.44 0.12 0.12 0.00 51.46 0.12 0.12 0.00 51.48 0.12 0.12 0.00 51.50 0.12 0.12 0.00 51.52 0.12 0.12 0.00 51.54 0.13 0.13 0.00 51.56 0.13 0.13 0.00 51.58 0.13 0.13 0.00 51.60 0.13 0.13 0.00 51.62 0.13 0.13 0.00 51.64 0.13 0.13 0.00 51.66 0.13 0.13 0.00 51.68 0.13 0.13 0.00 51.70 0.14 0.14 0.00 51.72 0.14 0.14 0.00 51.74 0.14 0.14 0.00 51.76 0.14 0.14 0.00 51.78 0.14 0.14 0.00 51.80 0.14 0.14 0.00 51.82 0.14 0.14 0.00 51.84 0.14 0.14 0.00 51.86 0.15 0.15 0.00 51.88 0.15 0.15 0.00 51.90 0.15 0.15 0.00 51.92 0.24 0.15 0.09 51.94 0.40 0.15 0.25 51.96 0.61 0.15 0.46 51.98 0.86 0.15 0.71 52.00 1.14 0.16 0.99 Type III 24-hr 100-year Rainfall=7.31"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 169HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond S1: Grassed Swale Leaching - S1 Elevation (feet) Surface (sq-ft) Wetted (sq-ft) Storage (cubic-feet) 50.00 779 779 0 50.02 785 795 16 50.04 792 811 31 50.06 799 827 47 50.08 805 843 63 50.10 812 860 80 50.12 818 876 96 50.14 825 893 112 50.16 832 909 129 50.18 838 926 146 50.20 845 943 162 50.22 852 959 179 50.24 858 976 196 50.26 865 993 214 50.28 872 1,010 231 50.30 879 1,027 249 50.32 886 1,045 266 50.34 893 1,062 284 50.36 900 1,079 302 50.38 907 1,097 320 50.40 914 1,114 338 50.42 921 1,132 356 50.44 928 1,150 375 50.46 935 1,167 394 50.48 942 1,185 412 50.50 949 1,203 431 50.52 956 1,221 450 50.54 963 1,239 470 50.56 970 1,258 489 50.58 978 1,276 508 50.60 985 1,294 528 50.62 992 1,313 548 50.64 999 1,331 568 50.66 1,007 1,350 588 50.68 1,014 1,368 608 50.70 1,022 1,387 628 50.72 1,029 1,406 649 50.74 1,036 1,425 669 50.76 1,044 1,444 690 50.78 1,051 1,463 711 50.80 1,059 1,482 732 50.82 1,066 1,501 754 50.84 1,074 1,521 775 50.86 1,082 1,540 796 50.88 1,089 1,560 818 50.90 1,097 1,579 840 50.92 1,105 1,599 862 50.94 1,112 1,619 884 50.96 1,120 1,639 907 50.98 1,128 1,658 929 51.00 1,136 1,678 952 51.02 1,143 1,698 974 Elevation (feet) Surface (sq-ft) Wetted (sq-ft) Storage (cubic-feet) 51.04 1,151 1,719 997 51.06 1,159 1,739 1,021 51.08 1,167 1,759 1,044 51.10 1,175 1,780 1,067 51.12 1,183 1,800 1,091 51.14 1,191 1,821 1,114 51.16 1,199 1,841 1,138 51.18 1,207 1,862 1,162 51.20 1,215 1,883 1,187 51.22 1,223 1,904 1,211 51.24 1,231 1,925 1,236 51.26 1,239 1,946 1,260 51.28 1,247 1,967 1,285 51.30 1,256 1,988 1,310 51.32 1,264 2,009 1,335 51.34 1,272 2,031 1,361 51.36 1,280 2,052 1,386 51.38 1,289 2,074 1,412 51.40 1,297 2,095 1,438 51.42 1,305 2,117 1,464 51.44 1,314 2,139 1,490 51.46 1,322 2,161 1,516 51.48 1,330 2,182 1,543 51.50 1,339 2,204 1,570 51.52 1,347 2,227 1,596 51.54 1,356 2,249 1,623 51.56 1,364 2,271 1,651 51.58 1,373 2,293 1,678 51.60 1,382 2,316 1,706 51.62 1,390 2,338 1,733 51.64 1,399 2,361 1,761 51.66 1,407 2,384 1,789 51.68 1,416 2,406 1,818 51.70 1,425 2,429 1,846 51.72 1,434 2,452 1,874 51.74 1,442 2,475 1,903 51.76 1,451 2,498 1,932 51.78 1,460 2,521 1,961 51.80 1,469 2,545 1,991 51.82 1,478 2,568 2,020 51.84 1,487 2,591 2,050 51.86 1,496 2,615 2,080 51.88 1,505 2,638 2,110 51.90 1,514 2,662 2,140 51.92 1,523 2,686 2,170 51.94 1,532 2,710 2,201 51.96 1,541 2,733 2,231 51.98 1,550 2,757 2,262 52.00 1,559 2,781 2,293 Type III 24-hr 100-year Rainfall=7.31"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 170HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Summary for Pond S2: Grassed Swale Leaching - S2 Inflow Area = 0.223 ac, 0.00% Impervious, Inflow Depth = 0.88" for 100-year event Inflow = 0.12 cfs @ 12.13 hrs, Volume= 0.016 af Outflow = 0.04 cfs @ 12.70 hrs, Volume= 0.016 af, Atten= 68%, Lag= 33.9 min Discarded = 0.04 cfs @ 12.70 hrs, Volume= 0.016 af Primary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-27.99 hrs, dt= 0.03 hrs Peak Elev= 38.16' @ 12.70 hrs Surf.Area= 703 sf Storage= 108 cf Plug-Flow detention time= 17.7 min calculated for 0.016 af (100% of inflow) Center-of-Mass det. time= 17.7 min ( 941.8 - 924.2 ) Volume Invert Avail.Storage Storage Description #1 38.00' 856 cf Grassed Swale (Irregular) Listed below (Recalc) Elevation Surf.Area Perim. Inc.Store Cum.Store Wet.Area (feet) (sq-ft) (feet) (cubic-feet) (cubic-feet) (sq-ft) 38.00 638 222.0 0 0 638 39.00 1,095 235.0 856 856 1,163 Device Routing Invert Outlet Devices #1 Discarded 38.00'2.410 in/hr Exfiltration over Wetted area Phase-In= 0.01' #2 Primary 38.90'10.0' long (Profile 6) Broad-Crested Rectangular Weir Head (feet) 0.49 0.98 1.48 Coef. (English) 3.12 3.41 3.59 Discarded OutFlow Max=0.04 cfs @ 12.70 hrs HW=38.16' (Free Discharge) 1=Exfiltration (Exfiltration Controls 0.04 cfs) Primary OutFlow Max=0.00 cfs @ 0.00 hrs HW=38.00' TW=0.00' (Dynamic Tailwater) 2=Broad-Crested Rectangular Weir ( Controls 0.00 cfs) Type III 24-hr 100-year Rainfall=7.31"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 171HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Pond S2: Grassed Swale Leaching - S2 Inflow Outflow Discarded Primary Hydrograph Time (hours) 26242220181614121086420Flow (cfs)0.13 0.12 0.11 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0 Inflow Area=0.223 ac Peak Elev=38.16' Storage=108 cf 0.12 cfs 0.04 cfs 0.04 cfs 0.00 cfs Pond S2: Grassed Swale Leaching - S2 Total Discarded Primary Stage-Discharge Discharge (cfs) 10Elevation (feet)39 38 Exfiltration Broad-Crested Rectangular Weir Type III 24-hr 100-year Rainfall=7.31"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 172HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Pond S2: Grassed Swale Leaching - S2 Surface Wetted Storage Stage-Area-Storage Storage (cubic-feet) 8007006005004003002001000 Surface/Horizontal/Wetted Area (sq-ft) 1,0008006004002000 Elevation (feet)39 38 Grassed Swale Type III 24-hr 100-year Rainfall=7.31"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 173HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Hydrograph for Pond S2: Grassed Swale Leaching - S2 Time (hours) Inflow (cfs) Storage (cubic-feet) Elevation (feet) Outflow (cfs) Discarded (cfs) Primary (cfs) 0.00 0.00 0 38.00 0.00 0.00 0.00 0.60 0.00 0 38.00 0.00 0.00 0.00 1.20 0.00 0 38.00 0.00 0.00 0.00 1.80 0.00 0 38.00 0.00 0.00 0.00 2.40 0.00 0 38.00 0.00 0.00 0.00 3.00 0.00 0 38.00 0.00 0.00 0.00 3.60 0.00 0 38.00 0.00 0.00 0.00 4.20 0.00 0 38.00 0.00 0.00 0.00 4.80 0.00 0 38.00 0.00 0.00 0.00 5.40 0.00 0 38.00 0.00 0.00 0.00 6.00 0.00 0 38.00 0.00 0.00 0.00 6.60 0.00 0 38.00 0.00 0.00 0.00 7.20 0.00 0 38.00 0.00 0.00 0.00 7.80 0.00 0 38.00 0.00 0.00 0.00 8.40 0.00 0 38.00 0.00 0.00 0.00 9.00 0.00 0 38.00 0.00 0.00 0.00 9.60 0.00 0 38.00 0.00 0.00 0.00 10.20 0.00 0 38.00 0.00 0.00 0.00 10.80 0.00 0 38.00 0.00 0.00 0.00 11.40 0.00 0 38.00 0.00 0.00 0.00 12.00 0.01 1 38.00 0.00 0.00 0.00 12.60 0.05 107 38.16 0.04 0.04 0.00 13.20 0.03 97 38.14 0.04 0.04 0.00 13.80 0.03 70 38.11 0.04 0.04 0.00 14.40 0.02 38 38.06 0.04 0.04 0.00 15.00 0.02 5 38.01 0.03 0.03 0.00 15.60 0.02 3 38.00 0.02 0.02 0.00 16.20 0.01 2 38.00 0.01 0.01 0.00 16.80 0.01 2 38.00 0.01 0.01 0.00 17.40 0.01 2 38.00 0.01 0.01 0.00 18.00 0.01 2 38.00 0.01 0.01 0.00 18.60 0.01 2 38.00 0.01 0.01 0.00 19.20 0.01 1 38.00 0.01 0.01 0.00 19.80 0.01 1 38.00 0.01 0.01 0.00 20.40 0.01 1 38.00 0.01 0.01 0.00 21.00 0.01 1 38.00 0.01 0.01 0.00 21.60 0.01 1 38.00 0.01 0.01 0.00 22.20 0.01 1 38.00 0.01 0.01 0.00 22.80 0.01 1 38.00 0.01 0.01 0.00 23.40 0.01 1 38.00 0.01 0.01 0.00 24.00 0.01 1 38.00 0.01 0.01 0.00 24.60 0.00 0 38.00 0.00 0.00 0.00 25.20 0.00 0 38.00 0.00 0.00 0.00 25.80 0.00 0 38.00 0.00 0.00 0.00 26.40 0.00 0 38.00 0.00 0.00 0.00 27.00 0.00 0 38.00 0.00 0.00 0.00 27.60 0.00 0 38.00 0.00 0.00 0.00 Type III 24-hr 100-year Rainfall=7.31"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 174HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Stage-Discharge for Pond S2: Grassed Swale Leaching - S2 Elevation (feet) Discharge (cfs) Discarded (cfs) Primary (cfs) 38.00 0.00 0.00 0.00 38.01 0.04 0.04 0.00 38.02 0.04 0.04 0.00 38.03 0.04 0.04 0.00 38.04 0.04 0.04 0.00 38.05 0.04 0.04 0.00 38.06 0.04 0.04 0.00 38.07 0.04 0.04 0.00 38.08 0.04 0.04 0.00 38.09 0.04 0.04 0.00 38.10 0.04 0.04 0.00 38.11 0.04 0.04 0.00 38.12 0.04 0.04 0.00 38.13 0.04 0.04 0.00 38.14 0.04 0.04 0.00 38.15 0.04 0.04 0.00 38.16 0.04 0.04 0.00 38.17 0.04 0.04 0.00 38.18 0.04 0.04 0.00 38.19 0.04 0.04 0.00 38.20 0.04 0.04 0.00 38.21 0.04 0.04 0.00 38.22 0.04 0.04 0.00 38.23 0.04 0.04 0.00 38.24 0.04 0.04 0.00 38.25 0.04 0.04 0.00 38.26 0.04 0.04 0.00 38.27 0.04 0.04 0.00 38.28 0.04 0.04 0.00 38.29 0.04 0.04 0.00 38.30 0.04 0.04 0.00 38.31 0.04 0.04 0.00 38.32 0.04 0.04 0.00 38.33 0.05 0.05 0.00 38.34 0.05 0.05 0.00 38.35 0.05 0.05 0.00 38.36 0.05 0.05 0.00 38.37 0.05 0.05 0.00 38.38 0.05 0.05 0.00 38.39 0.05 0.05 0.00 38.40 0.05 0.05 0.00 38.41 0.05 0.05 0.00 38.42 0.05 0.05 0.00 38.43 0.05 0.05 0.00 38.44 0.05 0.05 0.00 38.45 0.05 0.05 0.00 38.46 0.05 0.05 0.00 38.47 0.05 0.05 0.00 38.48 0.05 0.05 0.00 38.49 0.05 0.05 0.00 38.50 0.05 0.05 0.00 38.51 0.05 0.05 0.00 Elevation (feet) Discharge (cfs) Discarded (cfs) Primary (cfs) 38.52 0.05 0.05 0.00 38.53 0.05 0.05 0.00 38.54 0.05 0.05 0.00 38.55 0.05 0.05 0.00 38.56 0.05 0.05 0.00 38.57 0.05 0.05 0.00 38.58 0.05 0.05 0.00 38.59 0.05 0.05 0.00 38.60 0.05 0.05 0.00 38.61 0.05 0.05 0.00 38.62 0.05 0.05 0.00 38.63 0.05 0.05 0.00 38.64 0.05 0.05 0.00 38.65 0.05 0.05 0.00 38.66 0.05 0.05 0.00 38.67 0.06 0.06 0.00 38.68 0.06 0.06 0.00 38.69 0.06 0.06 0.00 38.70 0.06 0.06 0.00 38.71 0.06 0.06 0.00 38.72 0.06 0.06 0.00 38.73 0.06 0.06 0.00 38.74 0.06 0.06 0.00 38.75 0.06 0.06 0.00 38.76 0.06 0.06 0.00 38.77 0.06 0.06 0.00 38.78 0.06 0.06 0.00 38.79 0.06 0.06 0.00 38.80 0.06 0.06 0.00 38.81 0.06 0.06 0.00 38.82 0.06 0.06 0.00 38.83 0.06 0.06 0.00 38.84 0.06 0.06 0.00 38.85 0.06 0.06 0.00 38.86 0.06 0.06 0.00 38.87 0.06 0.06 0.00 38.88 0.06 0.06 0.00 38.89 0.06 0.06 0.00 38.90 0.06 0.06 0.00 38.91 0.09 0.06 0.03 38.92 0.15 0.06 0.09 38.93 0.22 0.06 0.16 38.94 0.31 0.06 0.25 38.95 0.41 0.06 0.35 38.96 0.52 0.06 0.46 38.97 0.64 0.06 0.58 38.98 0.77 0.06 0.71 38.99 0.91 0.06 0.84 39.00 1.05 0.06 0.99 Type III 24-hr 100-year Rainfall=7.31"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 175HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond S2: Grassed Swale Leaching - S2 Elevation (feet) Surface (sq-ft) Wetted (sq-ft) Storage (cubic-feet) 38.00 638 638 0 38.01 642 643 6 38.02 646 648 13 38.03 650 653 19 38.04 654 658 26 38.05 658 664 32 38.06 662 669 39 38.07 666 674 46 38.08 670 679 52 38.09 674 684 59 38.10 678 689 66 38.11 682 694 73 38.12 686 699 79 38.13 690 705 86 38.14 695 710 93 38.15 699 715 100 38.16 703 720 107 38.17 707 725 114 38.18 711 730 121 38.19 715 735 129 38.20 720 741 136 38.21 724 746 143 38.22 728 751 150 38.23 732 756 157 38.24 736 761 165 38.25 741 766 172 38.26 745 772 180 38.27 749 777 187 38.28 754 782 195 38.29 758 787 202 38.30 762 792 210 38.31 767 798 217 38.32 771 803 225 38.33 775 808 233 38.34 780 813 241 38.35 784 818 248 38.36 788 824 256 38.37 793 829 264 38.38 797 834 272 38.39 802 839 280 38.40 806 844 288 38.41 811 850 296 38.42 815 855 304 38.43 819 860 313 38.44 824 865 321 38.45 828 871 329 38.46 833 876 337 38.47 838 881 346 38.48 842 886 354 38.49 847 892 363 38.50 851 897 371 38.51 856 902 380 Elevation (feet) Surface (sq-ft) Wetted (sq-ft) Storage (cubic-feet) 38.52 860 907 388 38.53 865 913 397 38.54 870 918 405 38.55 874 923 414 38.56 879 928 423 38.57 883 934 432 38.58 888 939 441 38.59 893 944 449 38.60 897 949 458 38.61 902 955 467 38.62 907 960 476 38.63 912 965 486 38.64 916 971 495 38.65 921 976 504 38.66 926 981 513 38.67 931 987 522 38.68 935 992 532 38.69 940 997 541 38.70 945 1,002 551 38.71 950 1,008 560 38.72 955 1,013 570 38.73 960 1,018 579 38.74 964 1,024 589 38.75 969 1,029 598 38.76 974 1,034 608 38.77 979 1,040 618 38.78 984 1,045 628 38.79 989 1,050 638 38.80 994 1,056 647 38.81 999 1,061 657 38.82 1,004 1,066 667 38.83 1,009 1,072 678 38.84 1,014 1,077 688 38.85 1,019 1,082 698 38.86 1,024 1,088 708 38.87 1,029 1,093 718 38.88 1,034 1,099 729 38.89 1,039 1,104 739 38.90 1,044 1,109 749 38.91 1,049 1,115 760 38.92 1,054 1,120 770 38.93 1,059 1,125 781 38.94 1,064 1,131 792 38.95 1,069 1,136 802 38.96 1,074 1,142 813 38.97 1,080 1,147 824 38.98 1,085 1,152 834 38.99 1,090 1,158 845 39.00 1,095 1,163 856 Type III 24-hr 100-year Rainfall=7.31"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 176HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Summary for Pond S3: Grassed Swale Leaching - S3 Inflow Area = 1.713 ac, 3.89% Impervious, Inflow Depth = 0.96" for 100-year event Inflow = 0.98 cfs @ 12.21 hrs, Volume= 0.137 af Outflow = 0.19 cfs @ 14.06 hrs, Volume= 0.137 af, Atten= 80%, Lag= 110.9 min Discarded = 0.19 cfs @ 14.06 hrs, Volume= 0.137 af Primary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-27.99 hrs, dt= 0.03 hrs Peak Elev= 28.70' @ 14.06 hrs Surf.Area= 2,628 sf Storage= 1,621 cf Plug-Flow detention time= 93.7 min calculated for 0.137 af (100% of inflow) Center-of-Mass det. time= 93.6 min ( 1,016.0 - 922.4 ) Volume Invert Avail.Storage Storage Description #1 28.00' 5,894 cf Grassed Swale (Irregular) Listed below (Recalc) Elevation Surf.Area Perim. Inc.Store Cum.Store Wet.Area (feet) (sq-ft) (feet) (cubic-feet) (cubic-feet) (sq-ft) 28.00 2,004 189.0 0 0 2,004 30.00 4,004 312.0 5,894 5,894 6,933 Device Routing Invert Outlet Devices #1 Discarded 28.00'2.410 in/hr Exfiltration over Wetted area Phase-In= 0.01' #2 Primary 29.90'10.0' long (Profile 6) Broad-Crested Rectangular Weir Head (feet) 0.49 0.98 1.48 Coef. (English) 3.12 3.41 3.59 Discarded OutFlow Max=0.19 cfs @ 14.06 hrs HW=28.70' (Free Discharge) 1=Exfiltration (Exfiltration Controls 0.19 cfs) Primary OutFlow Max=0.00 cfs @ 0.00 hrs HW=28.00' TW=0.00' (Dynamic Tailwater) 2=Broad-Crested Rectangular Weir ( Controls 0.00 cfs) Type III 24-hr 100-year Rainfall=7.31"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 177HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Pond S3: Grassed Swale Leaching - S3 Inflow Outflow Discarded Primary Hydrograph Time (hours) 26242220181614121086420Flow (cfs)1 0 Inflow Area=1.713 ac Peak Elev=28.70' Storage=1,621 cf 0.98 cfs 0.19 cfs 0.19 cfs 0.00 cfs Pond S3: Grassed Swale Leaching - S3 Total Discarded Primary Stage-Discharge Discharge (cfs) 10Elevation (feet)30 29 28 Exfiltration Broad-Crested Rectangular Weir Type III 24-hr 100-year Rainfall=7.31"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 178HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Pond S3: Grassed Swale Leaching - S3 Surface Wetted Storage Stage-Area-Storage Storage (cubic-feet) 5,5005,0004,5004,0003,5003,0002,5002,0001,5001,0005000 Surface/Horizontal/Wetted Area (sq-ft) 6,0005,0004,0003,0002,0001,0000 Elevation (feet)30 29 28 Grassed Swale Type III 24-hr 100-year Rainfall=7.31"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 179HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Hydrograph for Pond S3: Grassed Swale Leaching - S3 Time (hours) Inflow (cfs) Storage (cubic-feet) Elevation (feet) Outflow (cfs) Discarded (cfs) Primary (cfs) 0.00 0.00 0 28.00 0.00 0.00 0.00 0.60 0.00 0 28.00 0.00 0.00 0.00 1.20 0.00 0 28.00 0.00 0.00 0.00 1.80 0.00 0 28.00 0.00 0.00 0.00 2.40 0.00 0 28.00 0.00 0.00 0.00 3.00 0.00 0 28.00 0.00 0.00 0.00 3.60 0.00 0 28.00 0.00 0.00 0.00 4.20 0.00 0 28.00 0.00 0.00 0.00 4.80 0.00 0 28.00 0.00 0.00 0.00 5.40 0.00 0 28.00 0.00 0.00 0.00 6.00 0.00 0 28.00 0.00 0.00 0.00 6.60 0.00 0 28.00 0.00 0.00 0.00 7.20 0.00 0 28.00 0.00 0.00 0.00 7.80 0.00 0 28.00 0.00 0.00 0.00 8.40 0.00 0 28.00 0.00 0.00 0.00 9.00 0.00 0 28.00 0.00 0.00 0.00 9.60 0.00 0 28.00 0.00 0.00 0.00 10.20 0.00 0 28.00 0.00 0.00 0.00 10.80 0.00 0 28.00 0.00 0.00 0.00 11.40 0.00 0 28.00 0.00 0.00 0.00 12.00 0.04 2 28.00 0.01 0.01 0.00 12.60 0.49 1,239 28.55 0.17 0.17 0.00 13.20 0.25 1,534 28.67 0.19 0.19 0.00 13.80 0.21 1,613 28.70 0.19 0.19 0.00 14.40 0.18 1,612 28.70 0.19 0.19 0.00 15.00 0.16 1,564 28.68 0.19 0.19 0.00 15.60 0.14 1,477 28.65 0.19 0.19 0.00 16.20 0.11 1,349 28.60 0.18 0.18 0.00 16.80 0.10 1,197 28.54 0.17 0.17 0.00 17.40 0.09 1,039 28.47 0.16 0.16 0.00 18.00 0.08 871 28.40 0.16 0.16 0.00 18.60 0.07 701 28.33 0.15 0.15 0.00 19.20 0.07 540 28.26 0.14 0.14 0.00 19.80 0.06 390 28.19 0.13 0.13 0.00 20.40 0.06 247 28.12 0.12 0.12 0.00 21.00 0.06 114 28.06 0.12 0.12 0.00 21.60 0.06 10 28.01 0.06 0.06 0.00 22.20 0.05 9 28.00 0.05 0.05 0.00 22.80 0.05 9 28.00 0.05 0.05 0.00 23.40 0.05 8 28.00 0.05 0.05 0.00 24.00 0.04 8 28.00 0.04 0.04 0.00 24.60 0.00 0 28.00 0.00 0.00 0.00 25.20 0.00 0 28.00 0.00 0.00 0.00 25.80 0.00 0 28.00 0.00 0.00 0.00 26.40 0.00 0 28.00 0.00 0.00 0.00 27.00 0.00 0 28.00 0.00 0.00 0.00 27.60 0.00 0 28.00 0.00 0.00 0.00 Type III 24-hr 100-year Rainfall=7.31"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 180HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Stage-Discharge for Pond S3: Grassed Swale Leaching - S3 Elevation (feet) Discharge (cfs) Discarded (cfs) Primary (cfs) 28.00 0.00 0.00 0.00 28.02 0.11 0.11 0.00 28.04 0.12 0.12 0.00 28.06 0.12 0.12 0.00 28.08 0.12 0.12 0.00 28.10 0.12 0.12 0.00 28.12 0.12 0.12 0.00 28.14 0.13 0.13 0.00 28.16 0.13 0.13 0.00 28.18 0.13 0.13 0.00 28.20 0.13 0.13 0.00 28.22 0.14 0.14 0.00 28.24 0.14 0.14 0.00 28.26 0.14 0.14 0.00 28.28 0.14 0.14 0.00 28.30 0.14 0.14 0.00 28.32 0.15 0.15 0.00 28.34 0.15 0.15 0.00 28.36 0.15 0.15 0.00 28.38 0.15 0.15 0.00 28.40 0.16 0.16 0.00 28.42 0.16 0.16 0.00 28.44 0.16 0.16 0.00 28.46 0.16 0.16 0.00 28.48 0.17 0.17 0.00 28.50 0.17 0.17 0.00 28.52 0.17 0.17 0.00 28.54 0.17 0.17 0.00 28.56 0.18 0.18 0.00 28.58 0.18 0.18 0.00 28.60 0.18 0.18 0.00 28.62 0.18 0.18 0.00 28.64 0.19 0.19 0.00 28.66 0.19 0.19 0.00 28.68 0.19 0.19 0.00 28.70 0.19 0.19 0.00 28.72 0.20 0.20 0.00 28.74 0.20 0.20 0.00 28.76 0.20 0.20 0.00 28.78 0.20 0.20 0.00 28.80 0.21 0.21 0.00 28.82 0.21 0.21 0.00 28.84 0.21 0.21 0.00 28.86 0.21 0.21 0.00 28.88 0.22 0.22 0.00 28.90 0.22 0.22 0.00 28.92 0.22 0.22 0.00 28.94 0.22 0.22 0.00 28.96 0.23 0.23 0.00 28.98 0.23 0.23 0.00 29.00 0.23 0.23 0.00 29.02 0.24 0.24 0.00 Elevation (feet) Discharge (cfs) Discarded (cfs) Primary (cfs) 29.04 0.24 0.24 0.00 29.06 0.24 0.24 0.00 29.08 0.24 0.24 0.00 29.10 0.25 0.25 0.00 29.12 0.25 0.25 0.00 29.14 0.25 0.25 0.00 29.16 0.25 0.25 0.00 29.18 0.26 0.26 0.00 29.20 0.26 0.26 0.00 29.22 0.26 0.26 0.00 29.24 0.27 0.27 0.00 29.26 0.27 0.27 0.00 29.28 0.27 0.27 0.00 29.30 0.28 0.28 0.00 29.32 0.28 0.28 0.00 29.34 0.28 0.28 0.00 29.36 0.28 0.28 0.00 29.38 0.29 0.29 0.00 29.40 0.29 0.29 0.00 29.42 0.29 0.29 0.00 29.44 0.30 0.30 0.00 29.46 0.30 0.30 0.00 29.48 0.30 0.30 0.00 29.50 0.31 0.31 0.00 29.52 0.31 0.31 0.00 29.54 0.31 0.31 0.00 29.56 0.31 0.31 0.00 29.58 0.32 0.32 0.00 29.60 0.32 0.32 0.00 29.62 0.32 0.32 0.00 29.64 0.33 0.33 0.00 29.66 0.33 0.33 0.00 29.68 0.33 0.33 0.00 29.70 0.34 0.34 0.00 29.72 0.34 0.34 0.00 29.74 0.34 0.34 0.00 29.76 0.35 0.35 0.00 29.78 0.35 0.35 0.00 29.80 0.35 0.35 0.00 29.82 0.36 0.36 0.00 29.84 0.36 0.36 0.00 29.86 0.36 0.36 0.00 29.88 0.37 0.37 0.00 29.90 0.37 0.37 0.00 29.92 0.46 0.37 0.09 29.94 0.63 0.38 0.25 29.96 0.84 0.38 0.46 29.98 1.09 0.38 0.71 30.00 1.37 0.39 0.99 Type III 24-hr 100-year Rainfall=7.31"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 181HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond S3: Grassed Swale Leaching - S3 Elevation (feet) Surface (sq-ft) Wetted (sq-ft) Storage (cubic-feet) 28.00 2,004 2,004 0 28.02 2,021 2,041 40 28.04 2,037 2,079 81 28.06 2,054 2,117 122 28.08 2,071 2,155 163 28.10 2,088 2,193 205 28.12 2,105 2,232 246 28.14 2,122 2,270 289 28.16 2,139 2,309 331 28.18 2,156 2,349 374 28.20 2,173 2,388 418 28.22 2,190 2,428 461 28.24 2,208 2,468 505 28.26 2,225 2,508 550 28.28 2,243 2,548 594 28.30 2,260 2,589 639 28.32 2,278 2,630 685 28.34 2,296 2,671 730 28.36 2,313 2,713 776 28.38 2,331 2,754 823 28.40 2,349 2,796 870 28.42 2,367 2,838 917 28.44 2,385 2,881 964 28.46 2,403 2,923 1,012 28.48 2,421 2,966 1,061 28.50 2,440 3,009 1,109 28.52 2,458 3,053 1,158 28.54 2,476 3,096 1,207 28.56 2,495 3,140 1,257 28.58 2,513 3,184 1,307 28.60 2,532 3,229 1,358 28.62 2,551 3,273 1,409 28.64 2,569 3,318 1,460 28.66 2,588 3,363 1,511 28.68 2,607 3,408 1,563 28.70 2,626 3,454 1,616 28.72 2,645 3,500 1,668 28.74 2,664 3,546 1,721 28.76 2,683 3,592 1,775 28.78 2,702 3,639 1,829 28.80 2,722 3,685 1,883 28.82 2,741 3,732 1,938 28.84 2,761 3,780 1,993 28.86 2,780 3,827 2,048 28.88 2,800 3,875 2,104 28.90 2,819 3,923 2,160 28.92 2,839 3,971 2,217 28.94 2,859 4,019 2,274 28.96 2,878 4,068 2,331 28.98 2,898 4,117 2,389 29.00 2,918 4,166 2,447 29.02 2,938 4,216 2,505 Elevation (feet) Surface (sq-ft) Wetted (sq-ft) Storage (cubic-feet) 29.04 2,958 4,265 2,564 29.06 2,979 4,315 2,624 29.08 2,999 4,365 2,684 29.10 3,019 4,416 2,744 29.12 3,040 4,466 2,804 29.14 3,060 4,517 2,865 29.16 3,081 4,568 2,927 29.18 3,101 4,620 2,989 29.20 3,122 4,671 3,051 29.22 3,142 4,723 3,113 29.24 3,163 4,775 3,176 29.26 3,184 4,827 3,240 29.28 3,205 4,880 3,304 29.30 3,226 4,933 3,368 29.32 3,247 4,986 3,433 29.34 3,268 5,039 3,498 29.36 3,289 5,093 3,564 29.38 3,311 5,146 3,630 29.40 3,332 5,200 3,696 29.42 3,353 5,255 3,763 29.44 3,375 5,309 3,830 29.46 3,396 5,364 3,898 29.48 3,418 5,419 3,966 29.50 3,440 5,474 4,035 29.52 3,461 5,530 4,104 29.54 3,483 5,585 4,173 29.56 3,505 5,641 4,243 29.58 3,527 5,697 4,313 29.60 3,549 5,754 4,384 29.62 3,571 5,811 4,455 29.64 3,593 5,867 4,527 29.66 3,616 5,925 4,599 29.68 3,638 5,982 4,672 29.70 3,660 6,040 4,745 29.72 3,683 6,098 4,818 29.74 3,705 6,156 4,892 29.76 3,728 6,214 4,966 29.78 3,750 6,273 5,041 29.80 3,773 6,331 5,116 29.82 3,796 6,391 5,192 29.84 3,819 6,450 5,268 29.86 3,842 6,509 5,345 29.88 3,865 6,569 5,422 29.90 3,888 6,629 5,499 29.92 3,911 6,690 5,577 29.94 3,934 6,750 5,656 29.96 3,957 6,811 5,735 29.98 3,981 6,872 5,814 30.00 4,004 6,933 5,894 Type III 24-hr 100-year Rainfall=7.31"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 182HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Summary for Pond S4: Grassed Swale Leaching - S4 Inflow Area = 0.065 ac, 27.81% Impervious, Inflow Depth = 2.32" for 100-year event Inflow = 0.17 cfs @ 12.10 hrs, Volume= 0.013 af Outflow = 0.02 cfs @ 12.98 hrs, Volume= 0.013 af, Atten= 87%, Lag= 52.8 min Discarded = 0.02 cfs @ 12.98 hrs, Volume= 0.013 af Primary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-27.99 hrs, dt= 0.03 hrs Peak Elev= 56.62' @ 12.98 hrs Surf.Area= 363 sf Storage= 187 cf Plug-Flow detention time= 84.4 min calculated for 0.013 af (100% of inflow) Center-of-Mass det. time= 84.3 min ( 947.6 - 863.3 ) Volume Invert Avail.Storage Storage Description #1 56.00' 342 cf Grassed Swale (Irregular) Listed below (Recalc) Elevation Surf.Area Perim. Inc.Store Cum.Store Wet.Area (feet) (sq-ft) (feet) (cubic-feet) (cubic-feet) (sq-ft) 56.00 248 92.0 0 0 248 57.00 446 105.0 342 342 474 Device Routing Invert Outlet Devices #1 Discarded 56.00'2.410 in/hr Exfiltration over Wetted area Phase-In= 0.01' #2 Primary 56.90'10.0' long (Profile 6) Broad-Crested Rectangular Weir Head (feet) 0.49 0.98 1.48 Coef. (English) 3.12 3.41 3.59 Discarded OutFlow Max=0.02 cfs @ 12.98 hrs HW=56.62' (Free Discharge) 1=Exfiltration (Exfiltration Controls 0.02 cfs) Primary OutFlow Max=0.00 cfs @ 0.00 hrs HW=56.00' TW=0.00' (Dynamic Tailwater) 2=Broad-Crested Rectangular Weir ( Controls 0.00 cfs) Type III 24-hr 100-year Rainfall=7.31"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 183HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Pond S4: Grassed Swale Leaching - S4 Inflow Outflow Discarded Primary Hydrograph Time (hours) 26242220181614121086420Flow (cfs)0.18 0.17 0.16 0.15 0.14 0.13 0.12 0.11 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0 Inflow Area=0.065 ac Peak Elev=56.62' Storage=187 cf 0.17 cfs 0.02 cfs 0.02 cfs 0.00 cfs Pond S4: Grassed Swale Leaching - S4 Total Discarded Primary Stage-Discharge Discharge (cfs) 10Elevation (feet)57 56 Exfiltration Broad-Crested Rectangular Weir Type III 24-hr 100-year Rainfall=7.31"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 184HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Pond S4: Grassed Swale Leaching - S4 Surface Wetted Storage Stage-Area-Storage Storage (cubic-feet) 300250200150100500 Surface/Horizontal/Wetted Area (sq-ft) 450400350300250200150100500 Elevation (feet)57 56 Grassed Swale Type III 24-hr 100-year Rainfall=7.31"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 185HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Hydrograph for Pond S4: Grassed Swale Leaching - S4 Time (hours) Inflow (cfs) Storage (cubic-feet) Elevation (feet) Outflow (cfs) Discarded (cfs) Primary (cfs) 0.00 0.00 0 56.00 0.00 0.00 0.00 0.60 0.00 0 56.00 0.00 0.00 0.00 1.20 0.00 0 56.00 0.00 0.00 0.00 1.80 0.00 0 56.00 0.00 0.00 0.00 2.40 0.00 0 56.00 0.00 0.00 0.00 3.00 0.00 0 56.00 0.00 0.00 0.00 3.60 0.00 0 56.00 0.00 0.00 0.00 4.20 0.00 0 56.00 0.00 0.00 0.00 4.80 0.00 0 56.00 0.00 0.00 0.00 5.40 0.00 0 56.00 0.00 0.00 0.00 6.00 0.00 0 56.00 0.00 0.00 0.00 6.60 0.00 0 56.00 0.00 0.00 0.00 7.20 0.00 0 56.00 0.00 0.00 0.00 7.80 0.00 0 56.00 0.00 0.00 0.00 8.40 0.00 0 56.00 0.00 0.00 0.00 9.00 0.00 0 56.00 0.00 0.00 0.00 9.60 0.00 0 56.00 0.00 0.00 0.00 10.20 0.00 0 56.00 0.00 0.00 0.00 10.80 0.00 0 56.00 0.00 0.00 0.00 11.40 0.00 1 56.00 0.00 0.00 0.00 12.00 0.09 28 56.11 0.02 0.02 0.00 12.60 0.03 181 56.60 0.02 0.02 0.00 13.20 0.02 185 56.61 0.02 0.02 0.00 13.80 0.02 176 56.58 0.02 0.02 0.00 14.40 0.01 161 56.54 0.02 0.02 0.00 15.00 0.01 143 56.49 0.02 0.02 0.00 15.60 0.01 122 56.43 0.02 0.02 0.00 16.20 0.01 100 56.36 0.02 0.02 0.00 16.80 0.01 77 56.28 0.02 0.02 0.00 17.40 0.01 54 56.20 0.02 0.02 0.00 18.00 0.00 31 56.12 0.02 0.02 0.00 18.60 0.00 10 56.04 0.01 0.01 0.00 19.20 0.00 1 56.00 0.00 0.00 0.00 19.80 0.00 1 56.00 0.00 0.00 0.00 20.40 0.00 1 56.00 0.00 0.00 0.00 21.00 0.00 1 56.00 0.00 0.00 0.00 21.60 0.00 1 56.00 0.00 0.00 0.00 22.20 0.00 1 56.00 0.00 0.00 0.00 22.80 0.00 1 56.00 0.00 0.00 0.00 23.40 0.00 1 56.00 0.00 0.00 0.00 24.00 0.00 0 56.00 0.00 0.00 0.00 24.60 0.00 0 56.00 0.00 0.00 0.00 25.20 0.00 0 56.00 0.00 0.00 0.00 25.80 0.00 0 56.00 0.00 0.00 0.00 26.40 0.00 0 56.00 0.00 0.00 0.00 27.00 0.00 0 56.00 0.00 0.00 0.00 27.60 0.00 0 56.00 0.00 0.00 0.00 Type III 24-hr 100-year Rainfall=7.31"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 186HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Stage-Discharge for Pond S4: Grassed Swale Leaching - S4 Elevation (feet) Discharge (cfs) Discarded (cfs) Primary (cfs) 56.00 0.00 0.00 0.00 56.01 0.01 0.01 0.00 56.02 0.01 0.01 0.00 56.03 0.01 0.01 0.00 56.04 0.01 0.01 0.00 56.05 0.01 0.01 0.00 56.06 0.01 0.01 0.00 56.07 0.01 0.01 0.00 56.08 0.01 0.01 0.00 56.09 0.01 0.01 0.00 56.10 0.02 0.02 0.00 56.11 0.02 0.02 0.00 56.12 0.02 0.02 0.00 56.13 0.02 0.02 0.00 56.14 0.02 0.02 0.00 56.15 0.02 0.02 0.00 56.16 0.02 0.02 0.00 56.17 0.02 0.02 0.00 56.18 0.02 0.02 0.00 56.19 0.02 0.02 0.00 56.20 0.02 0.02 0.00 56.21 0.02 0.02 0.00 56.22 0.02 0.02 0.00 56.23 0.02 0.02 0.00 56.24 0.02 0.02 0.00 56.25 0.02 0.02 0.00 56.26 0.02 0.02 0.00 56.27 0.02 0.02 0.00 56.28 0.02 0.02 0.00 56.29 0.02 0.02 0.00 56.30 0.02 0.02 0.00 56.31 0.02 0.02 0.00 56.32 0.02 0.02 0.00 56.33 0.02 0.02 0.00 56.34 0.02 0.02 0.00 56.35 0.02 0.02 0.00 56.36 0.02 0.02 0.00 56.37 0.02 0.02 0.00 56.38 0.02 0.02 0.00 56.39 0.02 0.02 0.00 56.40 0.02 0.02 0.00 56.41 0.02 0.02 0.00 56.42 0.02 0.02 0.00 56.43 0.02 0.02 0.00 56.44 0.02 0.02 0.00 56.45 0.02 0.02 0.00 56.46 0.02 0.02 0.00 56.47 0.02 0.02 0.00 56.48 0.02 0.02 0.00 56.49 0.02 0.02 0.00 56.50 0.02 0.02 0.00 56.51 0.02 0.02 0.00 Elevation (feet) Discharge (cfs) Discarded (cfs) Primary (cfs) 56.52 0.02 0.02 0.00 56.53 0.02 0.02 0.00 56.54 0.02 0.02 0.00 56.55 0.02 0.02 0.00 56.56 0.02 0.02 0.00 56.57 0.02 0.02 0.00 56.58 0.02 0.02 0.00 56.59 0.02 0.02 0.00 56.60 0.02 0.02 0.00 56.61 0.02 0.02 0.00 56.62 0.02 0.02 0.00 56.63 0.02 0.02 0.00 56.64 0.02 0.02 0.00 56.65 0.02 0.02 0.00 56.66 0.02 0.02 0.00 56.67 0.02 0.02 0.00 56.68 0.02 0.02 0.00 56.69 0.02 0.02 0.00 56.70 0.02 0.02 0.00 56.71 0.02 0.02 0.00 56.72 0.02 0.02 0.00 56.73 0.02 0.02 0.00 56.74 0.02 0.02 0.00 56.75 0.02 0.02 0.00 56.76 0.02 0.02 0.00 56.77 0.02 0.02 0.00 56.78 0.02 0.02 0.00 56.79 0.02 0.02 0.00 56.80 0.02 0.02 0.00 56.81 0.02 0.02 0.00 56.82 0.02 0.02 0.00 56.83 0.02 0.02 0.00 56.84 0.02 0.02 0.00 56.85 0.02 0.02 0.00 56.86 0.02 0.02 0.00 56.87 0.02 0.02 0.00 56.88 0.02 0.02 0.00 56.89 0.02 0.02 0.00 56.90 0.03 0.03 0.00 56.91 0.06 0.03 0.03 56.92 0.11 0.03 0.09 56.93 0.19 0.03 0.16 56.94 0.28 0.03 0.25 56.95 0.37 0.03 0.35 56.96 0.48 0.03 0.46 56.97 0.60 0.03 0.58 56.98 0.73 0.03 0.71 56.99 0.87 0.03 0.84 57.00 1.01 0.03 0.99 Type III 24-hr 100-year Rainfall=7.31"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 187HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond S4: Grassed Swale Leaching - S4 Elevation (feet) Surface (sq-ft) Wetted (sq-ft) Storage (cubic-feet) 56.00 248 248 0 56.01 250 250 2 56.02 251 252 5 56.03 253 254 8 56.04 255 256 10 56.05 257 259 13 56.06 258 261 15 56.07 260 263 18 56.08 262 265 20 56.09 263 267 23 56.10 265 269 26 56.11 267 271 28 56.12 269 274 31 56.13 270 276 34 56.14 272 278 36 56.15 274 280 39 56.16 276 282 42 56.17 278 284 45 56.18 279 287 47 56.19 281 289 50 56.20 283 291 53 56.21 285 293 56 56.22 287 295 59 56.23 288 297 62 56.24 290 300 65 56.25 292 302 67 56.26 294 304 70 56.27 296 306 73 56.28 298 308 76 56.29 299 311 79 56.30 301 313 82 56.31 303 315 85 56.32 305 317 88 56.33 307 319 91 56.34 309 322 94 56.35 311 324 98 56.36 313 326 101 56.37 315 328 104 56.38 316 330 107 56.39 318 333 110 56.40 320 335 113 56.41 322 337 117 56.42 324 339 120 56.43 326 342 123 56.44 328 344 126 56.45 330 346 130 56.46 332 348 133 56.47 334 351 136 56.48 336 353 140 56.49 338 355 143 56.50 340 357 146 56.51 342 360 150 Elevation (feet) Surface (sq-ft) Wetted (sq-ft) Storage (cubic-feet) 56.52 344 362 153 56.53 346 364 157 56.54 348 367 160 56.55 350 369 164 56.56 352 371 167 56.57 354 373 171 56.58 356 376 174 56.59 358 378 178 56.60 360 380 181 56.61 362 383 185 56.62 364 385 189 56.63 366 387 192 56.64 368 389 196 56.65 370 392 200 56.66 372 394 203 56.67 374 396 207 56.68 376 399 211 56.69 378 401 215 56.70 381 403 218 56.71 383 406 222 56.72 385 408 226 56.73 387 410 230 56.74 389 413 234 56.75 391 415 238 56.76 393 417 242 56.77 395 420 245 56.78 397 422 249 56.79 400 424 253 56.80 402 427 257 56.81 404 429 261 56.82 406 431 266 56.83 408 434 270 56.84 410 436 274 56.85 413 438 278 56.86 415 441 282 56.87 417 443 286 56.88 419 446 290 56.89 421 448 294 56.90 424 450 299 56.91 426 453 303 56.92 428 455 307 56.93 430 458 312 56.94 432 460 316 56.95 435 462 320 56.96 437 465 325 56.97 439 467 329 56.98 441 470 333 56.99 444 472 338 57.00 446 474 342 Type III 24-hr 100-year Rainfall=7.31"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 188HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Summary for Pond S5: Grassed Swale Leaching - S5 Inflow Area = 0.521 ac, 5.97% Impervious, Inflow Depth = 1.13" for 100-year event Inflow = 0.47 cfs @ 12.12 hrs, Volume= 0.049 af Outflow = 0.05 cfs @ 14.94 hrs, Volume= 0.049 af, Atten= 88%, Lag= 169.1 min Discarded = 0.05 cfs @ 14.94 hrs, Volume= 0.049 af Primary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-27.99 hrs, dt= 0.03 hrs Peak Elev= 48.89' @ 14.94 hrs Surf.Area= 951 sf Storage= 740 cf Plug-Flow detention time= 156.5 min calculated for 0.049 af (100% of inflow) Center-of-Mass det. time= 156.4 min ( 1,064.2 - 907.9 ) Volume Invert Avail.Storage Storage Description #1 48.00' 849 cf Grassed Swale (Irregular) Listed below (Recalc) Elevation Surf.Area Perim. Inc.Store Cum.Store Wet.Area (feet) (sq-ft) (feet) (cubic-feet) (cubic-feet) (sq-ft) 48.00 721 125.0 0 0 721 49.00 983 137.0 849 849 1,003 Device Routing Invert Outlet Devices #1 Discarded 48.00'2.410 in/hr Exfiltration over Wetted area Phase-In= 0.01' #2 Primary 48.90'10.0' long (Profile 6) Broad-Crested Rectangular Weir Head (feet) 0.49 0.98 1.48 Coef. (English) 3.12 3.41 3.59 Discarded OutFlow Max=0.05 cfs @ 14.94 hrs HW=48.89' (Free Discharge) 1=Exfiltration (Exfiltration Controls 0.05 cfs) Primary OutFlow Max=0.00 cfs @ 0.00 hrs HW=48.00' TW=0.00' (Dynamic Tailwater) 2=Broad-Crested Rectangular Weir ( Controls 0.00 cfs) Type III 24-hr 100-year Rainfall=7.31"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 189HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Pond S5: Grassed Swale Leaching - S5 Inflow Outflow Discarded Primary Hydrograph Time (hours) 26242220181614121086420Flow (cfs)0.5 0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 Inflow Area=0.521 ac Peak Elev=48.89' Storage=740 cf 0.47 cfs 0.05 cfs 0.05 cfs 0.00 cfs Pond S5: Grassed Swale Leaching - S5 Total Discarded Primary Stage-Discharge Discharge (cfs) 10Elevation (feet)49 48 Exfiltration Broad-Crested Rectangular Weir Type III 24-hr 100-year Rainfall=7.31"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 190HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Pond S5: Grassed Swale Leaching - S5 Surface Wetted Storage Stage-Area-Storage Storage (cubic-feet) 8007006005004003002001000 Surface/Horizontal/Wetted Area (sq-ft) 1,0009008007006005004003002001000 Elevation (feet)49 48 Grassed Swale Type III 24-hr 100-year Rainfall=7.31"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 191HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Hydrograph for Pond S5: Grassed Swale Leaching - S5 Time (hours) Inflow (cfs) Storage (cubic-feet) Elevation (feet) Outflow (cfs) Discarded (cfs) Primary (cfs) 0.00 0.00 0 48.00 0.00 0.00 0.00 0.60 0.00 0 48.00 0.00 0.00 0.00 1.20 0.00 0 48.00 0.00 0.00 0.00 1.80 0.00 0 48.00 0.00 0.00 0.00 2.40 0.00 0 48.00 0.00 0.00 0.00 3.00 0.00 0 48.00 0.00 0.00 0.00 3.60 0.00 0 48.00 0.00 0.00 0.00 4.20 0.00 0 48.00 0.00 0.00 0.00 4.80 0.00 0 48.00 0.00 0.00 0.00 5.40 0.00 0 48.00 0.00 0.00 0.00 6.00 0.00 0 48.00 0.00 0.00 0.00 6.60 0.00 0 48.00 0.00 0.00 0.00 7.20 0.00 0 48.00 0.00 0.00 0.00 7.80 0.00 0 48.00 0.00 0.00 0.00 8.40 0.00 0 48.00 0.00 0.00 0.00 9.00 0.00 0 48.00 0.00 0.00 0.00 9.60 0.00 0 48.00 0.00 0.00 0.00 10.20 0.00 0 48.00 0.00 0.00 0.00 10.80 0.00 0 48.00 0.00 0.00 0.00 11.40 0.00 0 48.00 0.00 0.00 0.00 12.00 0.13 12 48.02 0.04 0.04 0.00 12.60 0.13 549 48.68 0.05 0.05 0.00 13.20 0.08 658 48.80 0.05 0.05 0.00 13.80 0.07 710 48.86 0.05 0.05 0.00 14.40 0.06 733 48.88 0.05 0.05 0.00 15.00 0.05 740 48.89 0.05 0.05 0.00 15.60 0.05 729 48.88 0.05 0.05 0.00 16.20 0.04 701 48.85 0.05 0.05 0.00 16.80 0.03 663 48.81 0.05 0.05 0.00 17.40 0.03 618 48.76 0.05 0.05 0.00 18.00 0.03 565 48.70 0.05 0.05 0.00 18.60 0.02 508 48.64 0.05 0.05 0.00 19.20 0.02 451 48.57 0.05 0.05 0.00 19.80 0.02 394 48.50 0.05 0.05 0.00 20.40 0.02 336 48.43 0.05 0.05 0.00 21.00 0.02 279 48.36 0.05 0.05 0.00 21.60 0.02 222 48.29 0.04 0.04 0.00 22.20 0.02 165 48.22 0.04 0.04 0.00 22.80 0.02 108 48.15 0.04 0.04 0.00 23.40 0.02 52 48.07 0.04 0.04 0.00 24.00 0.01 3 48.00 0.02 0.02 0.00 24.60 0.00 0 48.00 0.00 0.00 0.00 25.20 0.00 0 48.00 0.00 0.00 0.00 25.80 0.00 0 48.00 0.00 0.00 0.00 26.40 0.00 0 48.00 0.00 0.00 0.00 27.00 0.00 0 48.00 0.00 0.00 0.00 27.60 0.00 0 48.00 0.00 0.00 0.00 Type III 24-hr 100-year Rainfall=7.31"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 192HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Stage-Discharge for Pond S5: Grassed Swale Leaching - S5 Elevation (feet) Discharge (cfs) Discarded (cfs) Primary (cfs) 48.00 0.00 0.00 0.00 48.01 0.04 0.04 0.00 48.02 0.04 0.04 0.00 48.03 0.04 0.04 0.00 48.04 0.04 0.04 0.00 48.05 0.04 0.04 0.00 48.06 0.04 0.04 0.00 48.07 0.04 0.04 0.00 48.08 0.04 0.04 0.00 48.09 0.04 0.04 0.00 48.10 0.04 0.04 0.00 48.11 0.04 0.04 0.00 48.12 0.04 0.04 0.00 48.13 0.04 0.04 0.00 48.14 0.04 0.04 0.00 48.15 0.04 0.04 0.00 48.16 0.04 0.04 0.00 48.17 0.04 0.04 0.00 48.18 0.04 0.04 0.00 48.19 0.04 0.04 0.00 48.20 0.04 0.04 0.00 48.21 0.04 0.04 0.00 48.22 0.04 0.04 0.00 48.23 0.04 0.04 0.00 48.24 0.04 0.04 0.00 48.25 0.04 0.04 0.00 48.26 0.04 0.04 0.00 48.27 0.04 0.04 0.00 48.28 0.04 0.04 0.00 48.29 0.04 0.04 0.00 48.30 0.04 0.04 0.00 48.31 0.04 0.04 0.00 48.32 0.05 0.05 0.00 48.33 0.05 0.05 0.00 48.34 0.05 0.05 0.00 48.35 0.05 0.05 0.00 48.36 0.05 0.05 0.00 48.37 0.05 0.05 0.00 48.38 0.05 0.05 0.00 48.39 0.05 0.05 0.00 48.40 0.05 0.05 0.00 48.41 0.05 0.05 0.00 48.42 0.05 0.05 0.00 48.43 0.05 0.05 0.00 48.44 0.05 0.05 0.00 48.45 0.05 0.05 0.00 48.46 0.05 0.05 0.00 48.47 0.05 0.05 0.00 48.48 0.05 0.05 0.00 48.49 0.05 0.05 0.00 48.50 0.05 0.05 0.00 48.51 0.05 0.05 0.00 Elevation (feet) Discharge (cfs) Discarded (cfs) Primary (cfs) 48.52 0.05 0.05 0.00 48.53 0.05 0.05 0.00 48.54 0.05 0.05 0.00 48.55 0.05 0.05 0.00 48.56 0.05 0.05 0.00 48.57 0.05 0.05 0.00 48.58 0.05 0.05 0.00 48.59 0.05 0.05 0.00 48.60 0.05 0.05 0.00 48.61 0.05 0.05 0.00 48.62 0.05 0.05 0.00 48.63 0.05 0.05 0.00 48.64 0.05 0.05 0.00 48.65 0.05 0.05 0.00 48.66 0.05 0.05 0.00 48.67 0.05 0.05 0.00 48.68 0.05 0.05 0.00 48.69 0.05 0.05 0.00 48.70 0.05 0.05 0.00 48.71 0.05 0.05 0.00 48.72 0.05 0.05 0.00 48.73 0.05 0.05 0.00 48.74 0.05 0.05 0.00 48.75 0.05 0.05 0.00 48.76 0.05 0.05 0.00 48.77 0.05 0.05 0.00 48.78 0.05 0.05 0.00 48.79 0.05 0.05 0.00 48.80 0.05 0.05 0.00 48.81 0.05 0.05 0.00 48.82 0.05 0.05 0.00 48.83 0.05 0.05 0.00 48.84 0.05 0.05 0.00 48.85 0.05 0.05 0.00 48.86 0.05 0.05 0.00 48.87 0.05 0.05 0.00 48.88 0.05 0.05 0.00 48.89 0.05 0.05 0.00 48.90 0.05 0.05 0.00 48.91 0.09 0.05 0.03 48.92 0.14 0.05 0.09 48.93 0.22 0.05 0.16 48.94 0.30 0.05 0.25 48.95 0.40 0.06 0.35 48.96 0.51 0.06 0.46 48.97 0.63 0.06 0.58 48.98 0.76 0.06 0.71 48.99 0.90 0.06 0.84 49.00 1.04 0.06 0.99 Type III 24-hr 100-year Rainfall=7.31"8807.Peak Discharge(10.19.22) Printed 10/24/2022Prepared by J.M. O'Reilly & Associates, Inc. Page 193HydroCAD® 10.00-22 s/n 08678 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond S5: Grassed Swale Leaching - S5 Elevation (feet) Surface (sq-ft) Wetted (sq-ft) Storage (cubic-feet) 48.00 721 721 0 48.01 723 724 7 48.02 726 726 14 48.03 728 729 22 48.04 731 732 29 48.05 733 735 36 48.06 736 737 44 48.07 738 740 51 48.08 740 743 58 48.09 743 745 66 48.10 745 748 73 48.11 748 751 81 48.12 750 754 88 48.13 753 756 96 48.14 755 759 103 48.15 758 762 111 48.16 760 764 118 48.17 763 767 126 48.18 765 770 134 48.19 768 773 141 48.20 770 775 149 48.21 773 778 157 48.22 775 781 165 48.23 778 784 172 48.24 780 786 180 48.25 783 789 188 48.26 785 792 196 48.27 788 795 204 48.28 790 797 212 48.29 793 800 219 48.30 795 803 227 48.31 798 806 235 48.32 800 809 243 48.33 803 811 251 48.34 806 814 259 48.35 808 817 267 48.36 811 820 276 48.37 813 822 284 48.38 816 825 292 48.39 818 828 300 48.40 821 831 308 48.41 824 834 316 48.42 826 836 325 48.43 829 839 333 48.44 831 842 341 48.45 834 845 350 48.46 836 848 358 48.47 839 851 366 48.48 842 853 375 48.49 844 856 383 48.50 847 859 392 48.51 850 862 400 Elevation (feet) Surface (sq-ft) Wetted (sq-ft) Storage (cubic-feet) 48.52 852 865 409 48.53 855 867 417 48.54 857 870 426 48.55 860 873 434 48.56 863 876 443 48.57 865 879 451 48.58 868 882 460 48.59 871 884 469 48.60 873 887 478 48.61 876 890 486 48.62 879 893 495 48.63 881 896 504 48.64 884 899 513 48.65 887 902 522 48.66 889 904 530 48.67 892 907 539 48.68 895 910 548 48.69 897 913 557 48.70 900 916 566 48.71 903 919 575 48.72 906 922 584 48.73 908 925 593 48.74 911 927 602 48.75 914 930 612 48.76 916 933 621 48.77 919 936 630 48.78 922 939 639 48.79 925 942 648 48.80 927 945 658 48.81 930 948 667 48.82 933 951 676 48.83 936 954 686 48.84 938 956 695 48.85 941 959 704 48.86 944 962 714 48.87 947 965 723 48.88 949 968 733 48.89 952 971 742 48.90 955 974 752 48.91 958 977 761 48.92 961 980 771 48.93 963 983 781 48.94 966 986 790 48.95 969 989 800 48.96 972 992 810 48.97 975 995 819 48.98 977 998 829 48.99 980 1,000 839 49.00 983 1,003 849