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8807.Peak Discharge(1.18.23)(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(1.18.23) Prepared by J M O'Reilly & Associates Inc, Printed 1/20/2023 HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Subcat Reach Pond Link Type III 24-hr 2-year Rainfall=3.36"8807.Peak Discharge(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 2HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Summary for Subcatchment 1S: Post-Development Watershed - S1 Runoff = 0.05 cfs @ 12.41 hrs, Volume= 0.011 af, Depth= 0.24" Routed to Pond S1 : Grassed Swale Leaching - S1 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 5,997 98 Paved parking, HSG A 18,845 39 >75% Grass cover, Good, HSG A 24,842 53 Weighted Average 18,845 75.86% Pervious Area 5,997 24.14% 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)0.055 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=24,842 sf Runoff Volume=0.011 af Runoff Depth=0.24" Flow Length=160' Tc=9.5 min CN=53 0.05 cfs Type III 24-hr 2-year Rainfall=3.36"8807.Peak Discharge(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 3HydroCAD® 10.20-2g s/n 08678 © 2022 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 0.02 0.04 12.60 2.40 0.04 0.04 12.90 2.49 0.05 0.03 13.20 2.57 0.07 0.02 13.50 2.63 0.08 0.02 13.80 2.69 0.09 0.02 14.10 2.74 0.10 0.02 14.40 2.79 0.10 0.02 14.70 2.83 0.11 0.02 15.00 2.87 0.12 0.02 15.30 2.91 0.13 0.01 Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 15.60 2.94 0.14 0.01 15.90 2.97 0.14 0.01 16.20 2.99 0.15 0.01 16.50 3.02 0.15 0.01 16.80 3.04 0.16 0.01 17.10 3.06 0.16 0.01 17.40 3.08 0.17 0.01 17.70 3.10 0.17 0.01 18.00 3.12 0.18 0.01 18.30 3.13 0.18 0.01 18.60 3.15 0.18 0.01 18.90 3.16 0.19 0.01 19.20 3.18 0.19 0.01 19.50 3.19 0.20 0.01 19.80 3.21 0.20 0.01 20.10 3.22 0.20 0.01 20.40 3.23 0.21 0.01 20.70 3.25 0.21 0.01 21.00 3.26 0.21 0.01 21.30 3.27 0.22 0.01 21.60 3.28 0.22 0.01 21.90 3.29 0.22 0.01 22.20 3.30 0.22 0.01 22.50 3.31 0.23 0.01 22.80 3.32 0.23 0.01 23.10 3.33 0.23 0.01 23.40 3.34 0.24 0.01 23.70 3.35 0.24 0.00 24.00 3.36 0.24 0.00 24.30 3.36 0.24 0.00 24.60 3.36 0.24 0.00 24.90 3.36 0.24 0.00 25.20 3.36 0.24 0.00 25.50 3.36 0.24 0.00 25.80 3.36 0.24 0.00 26.10 3.36 0.24 0.00 26.40 3.36 0.24 0.00 26.70 3.36 0.24 0.00 27.00 3.36 0.24 0.00 27.30 3.36 0.24 0.00 27.60 3.36 0.24 0.00 27.90 3.36 0.24 0.00 Type III 24-hr 2-year Rainfall=3.36"8807.Peak Discharge(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 4HydroCAD® 10.20-2g s/n 08678 © 2022 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" Routed to Pond S2 : Grassed Swale Leaching - S2 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 5HydroCAD® 10.20-2g s/n 08678 © 2022 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 6HydroCAD® 10.20-2g s/n 08678 © 2022 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" Routed to Pond S3 : Grassed Swale Leaching - S3 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 7HydroCAD® 10.20-2g s/n 08678 © 2022 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 8HydroCAD® 10.20-2g s/n 08678 © 2022 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" Routed to Pond S4 : Grassed Swale Leaching - S4 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 9HydroCAD® 10.20-2g s/n 08678 © 2022 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 10HydroCAD® 10.20-2g s/n 08678 © 2022 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" Routed to Pond S5 : Grassed Swale Leaching - S5 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 1,359 98 Paved parking, HSG A 15,534 39 >75% Grass cover, Good, HSG A 4,500 36 Woods, Fair, HSG A 21,393 42 Weighted Average 20,034 93.65% Pervious Area 1,359 6.35% 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 0.001 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=21,393 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 11HydroCAD® 10.20-2g s/n 08678 © 2022 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 12HydroCAD® 10.20-2g s/n 08678 © 2022 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" Routed to Reach 1R : Post-Development Peak Discharge Rate 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 611 98 Paved parking, HSG A 30,000 39 >75% Grass cover, Good, HSG A 129,489 36 Woods, Fair, HSG A 160,100 37 Weighted Average 159,489 99.62% Pervious Area 611 0.38% 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=160,100 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 13HydroCAD® 10.20-2g s/n 08678 © 2022 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 14HydroCAD® 10.20-2g s/n 08678 © 2022 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" Routed to Reach 9R : Pre-Development Peak Discharge Rate 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 15HydroCAD® 10.20-2g s/n 08678 © 2022 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 16HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Summary for Reach 1R: Post-Development Peak Discharge Rate Inflow Area = 6.739 ac, 3.97% 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=6.739 ac 0.00 cfs 0.00 cfs Type III 24-hr 2-year Rainfall=3.36"8807.Peak Discharge(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 17HydroCAD® 10.20-2g s/n 08678 © 2022 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 18HydroCAD® 10.20-2g s/n 08678 © 2022 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 19HydroCAD® 10.20-2g s/n 08678 © 2022 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 20HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Summary for Pond S1: Grassed Swale Leaching - S1 Inflow Area = 0.570 ac, 24.14% Impervious, Inflow Depth = 0.24" for 2-year event Inflow = 0.05 cfs @ 12.41 hrs, Volume= 0.011 af Outflow = 0.04 cfs @ 12.53 hrs, Volume= 0.011 af, Atten= 14%, Lag= 7.2 min Discarded = 0.04 cfs @ 12.53 hrs, Volume= 0.011 af Primary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routed to Reach 1R : Post-Development Peak Discharge Rate Routing by Dyn-Stor-Ind method, Time Span= 0.00-27.99 hrs, dt= 0.03 hrs Peak Elev= 50.01' @ 12.53 hrs Surf.Area= 784 sf Storage= 11 cf Plug-Flow detention time= 3.1 min calculated for 0.011 af (100% of inflow) Center-of-Mass det. time= 3.1 min ( 968.6 - 965.6 ) 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 @ 12.53 hrs HW=50.01' (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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 21HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Pond S1: Grassed Swale Leaching - S1 Inflow Outflow Discarded Primary Hydrograph Time (hours) 26242220181614121086420Flow (cfs)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=0.570 ac Peak Elev=50.01' Storage=11 cf 0.05 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 22HydroCAD® 10.20-2g s/n 08678 © 2022 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 23HydroCAD® 10.20-2g s/n 08678 © 2022 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 10 50.01 0.04 0.04 0.00 13.20 0.02 4 50.00 0.02 0.02 0.00 13.80 0.02 3 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 2 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 1 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 24HydroCAD® 10.20-2g s/n 08678 © 2022 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 25HydroCAD® 10.20-2g s/n 08678 © 2022 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 50.05 795 819 39 50.10 812 860 80 50.15 828 901 121 50.20 845 943 162 50.25 862 985 205 50.30 879 1,027 249 50.35 896 1,071 293 50.40 914 1,114 338 50.45 931 1,159 384 50.50 949 1,203 431 50.55 967 1,248 479 50.60 985 1,294 528 50.65 1,003 1,340 578 50.70 1,022 1,387 628 50.75 1,040 1,434 680 50.80 1,059 1,482 732 50.85 1,078 1,531 786 50.90 1,097 1,579 840 50.95 1,116 1,629 895 51.00 1,136 1,678 952 51.05 1,155 1,729 1,009 51.10 1,175 1,780 1,067 51.15 1,195 1,831 1,126 51.20 1,215 1,883 1,187 51.25 1,235 1,935 1,248 51.30 1,256 1,988 1,310 51.35 1,276 2,041 1,373 51.40 1,297 2,095 1,438 51.45 1,318 2,150 1,503 51.50 1,339 2,204 1,570 51.55 1,360 2,260 1,637 51.60 1,382 2,316 1,706 51.65 1,403 2,372 1,775 51.70 1,425 2,429 1,846 51.75 1,447 2,487 1,918 51.80 1,469 2,545 1,991 51.85 1,491 2,603 2,065 51.90 1,514 2,662 2,140 51.95 1,536 2,722 2,216 52.00 1,559 2,781 2,293 Type III 24-hr 2-year Rainfall=3.36"8807.Peak Discharge(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 26HydroCAD® 10.20-2g s/n 08678 © 2022 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 Routed to Reach 1R : Post-Development Peak Discharge Rate 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 27HydroCAD® 10.20-2g s/n 08678 © 2022 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 28HydroCAD® 10.20-2g s/n 08678 © 2022 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 29HydroCAD® 10.20-2g s/n 08678 © 2022 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 30HydroCAD® 10.20-2g s/n 08678 © 2022 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 31HydroCAD® 10.20-2g s/n 08678 © 2022 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 38.02 646 648 13 38.04 654 658 26 38.06 662 669 39 38.08 670 679 52 38.10 678 689 66 38.12 686 699 79 38.14 695 710 93 38.16 703 720 107 38.18 711 730 121 38.20 720 741 136 38.22 728 751 150 38.24 736 761 165 38.26 745 772 180 38.28 754 782 195 38.30 762 792 210 38.32 771 803 225 38.34 780 813 241 38.36 788 824 256 38.38 797 834 272 38.40 806 844 288 38.42 815 855 304 38.44 824 865 321 38.46 833 876 337 38.48 842 886 354 38.50 851 897 371 38.52 860 907 388 38.54 870 918 405 38.56 879 928 423 38.58 888 939 441 38.60 897 949 458 38.62 907 960 476 38.64 916 971 495 38.66 926 981 513 38.68 935 992 532 38.70 945 1,002 551 38.72 955 1,013 570 38.74 964 1,024 589 38.76 974 1,034 608 38.78 984 1,045 628 38.80 994 1,056 647 38.82 1,004 1,066 667 38.84 1,014 1,077 688 38.86 1,024 1,088 708 38.88 1,034 1,099 729 38.90 1,044 1,109 749 38.92 1,054 1,120 770 38.94 1,064 1,131 792 38.96 1,074 1,142 813 38.98 1,085 1,152 834 39.00 1,095 1,163 856 Type III 24-hr 2-year Rainfall=3.36"8807.Peak Discharge(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 32HydroCAD® 10.20-2g s/n 08678 © 2022 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 Routed to Reach 1R : Post-Development Peak Discharge Rate 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 33HydroCAD® 10.20-2g s/n 08678 © 2022 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 34HydroCAD® 10.20-2g s/n 08678 © 2022 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 35HydroCAD® 10.20-2g s/n 08678 © 2022 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 36HydroCAD® 10.20-2g s/n 08678 © 2022 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 37HydroCAD® 10.20-2g s/n 08678 © 2022 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 28.05 2,046 2,098 101 28.10 2,088 2,193 205 28.15 2,130 2,290 310 28.20 2,173 2,388 418 28.25 2,217 2,488 527 28.30 2,260 2,589 639 28.35 2,305 2,692 753 28.40 2,349 2,796 870 28.45 2,394 2,902 988 28.50 2,440 3,009 1,109 28.55 2,486 3,118 1,232 28.60 2,532 3,229 1,358 28.65 2,579 3,341 1,485 28.70 2,626 3,454 1,616 28.75 2,674 3,569 1,748 28.80 2,722 3,685 1,883 28.85 2,770 3,803 2,020 28.90 2,819 3,923 2,160 28.95 2,869 4,044 2,302 29.00 2,918 4,166 2,447 29.05 2,969 4,290 2,594 29.10 3,019 4,416 2,744 29.15 3,070 4,543 2,896 29.20 3,122 4,671 3,051 29.25 3,174 4,801 3,208 29.30 3,226 4,933 3,368 29.35 3,279 5,066 3,531 29.40 3,332 5,200 3,696 29.45 3,386 5,336 3,864 29.50 3,440 5,474 4,035 29.55 3,494 5,613 4,208 29.60 3,549 5,754 4,384 29.65 3,605 5,896 4,563 29.70 3,660 6,040 4,745 29.75 3,717 6,185 4,929 29.80 3,773 6,331 5,116 29.85 3,830 6,480 5,306 29.90 3,888 6,629 5,499 29.95 3,946 6,781 5,695 30.00 4,004 6,933 5,894 Type III 24-hr 2-year Rainfall=3.36"8807.Peak Discharge(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 38HydroCAD® 10.20-2g s/n 08678 © 2022 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 Routed to Reach 1R : Post-Development Peak Discharge Rate 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 39HydroCAD® 10.20-2g s/n 08678 © 2022 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 40HydroCAD® 10.20-2g s/n 08678 © 2022 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 41HydroCAD® 10.20-2g s/n 08678 © 2022 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 42HydroCAD® 10.20-2g s/n 08678 © 2022 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 43HydroCAD® 10.20-2g s/n 08678 © 2022 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 56.02 251 252 5 56.04 255 256 10 56.06 258 261 15 56.08 262 265 20 56.10 265 269 26 56.12 269 274 31 56.14 272 278 36 56.16 276 282 42 56.18 279 287 47 56.20 283 291 53 56.22 287 295 59 56.24 290 300 65 56.26 294 304 70 56.28 298 308 76 56.30 301 313 82 56.32 305 317 88 56.34 309 322 94 56.36 313 326 101 56.38 316 330 107 56.40 320 335 113 56.42 324 339 120 56.44 328 344 126 56.46 332 348 133 56.48 336 353 140 56.50 340 357 146 56.52 344 362 153 56.54 348 367 160 56.56 352 371 167 56.58 356 376 174 56.60 360 380 181 56.62 364 385 189 56.64 368 389 196 56.66 372 394 203 56.68 376 399 211 56.70 381 403 218 56.72 385 408 226 56.74 389 413 234 56.76 393 417 242 56.78 397 422 249 56.80 402 427 257 56.82 406 431 266 56.84 410 436 274 56.86 415 441 282 56.88 419 446 290 56.90 424 450 299 56.92 428 455 307 56.94 432 460 316 56.96 437 465 325 56.98 441 470 333 57.00 446 474 342 Type III 24-hr 2-year Rainfall=3.36"8807.Peak Discharge(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 44HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Summary for Pond S5: Grassed Swale Leaching - S5 Inflow Area = 0.491 ac, 6.35% 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 Routed to Reach 1R : Post-Development Peak Discharge Rate 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 45HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Pond S5: Grassed Swale Leaching - S5 Inflow Outflow Discarded Primary Hydrograph Time (hours) 26242220181614121086420Flow (cfs)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=0.491 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 46HydroCAD® 10.20-2g s/n 08678 © 2022 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 47HydroCAD® 10.20-2g s/n 08678 © 2022 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 48HydroCAD® 10.20-2g s/n 08678 © 2022 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 49HydroCAD® 10.20-2g s/n 08678 © 2022 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 48.02 726 726 14 48.04 731 732 29 48.06 736 737 44 48.08 740 743 58 48.10 745 748 73 48.12 750 754 88 48.14 755 759 103 48.16 760 764 118 48.18 765 770 134 48.20 770 775 149 48.22 775 781 165 48.24 780 786 180 48.26 785 792 196 48.28 790 797 212 48.30 795 803 227 48.32 800 809 243 48.34 806 814 259 48.36 811 820 276 48.38 816 825 292 48.40 821 831 308 48.42 826 836 325 48.44 831 842 341 48.46 836 848 358 48.48 842 853 375 48.50 847 859 392 48.52 852 865 409 48.54 857 870 426 48.56 863 876 443 48.58 868 882 460 48.60 873 887 478 48.62 879 893 495 48.64 884 899 513 48.66 889 904 530 48.68 895 910 548 48.70 900 916 566 48.72 906 922 584 48.74 911 927 602 48.76 916 933 621 48.78 922 939 639 48.80 927 945 658 48.82 933 951 676 48.84 938 956 695 48.86 944 962 714 48.88 949 968 733 48.90 955 974 752 48.92 961 980 771 48.94 966 986 790 48.96 972 992 810 48.98 977 998 829 49.00 983 1,003 849 Type III 24-hr 10-year Rainfall=4.88"8807.Peak Discharge(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 50HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Summary for Subcatchment 1S: Post-Development Watershed - S1 Runoff = 0.34 cfs @ 12.17 hrs, Volume= 0.038 af, Depth= 0.81" Routed to Pond S1 : Grassed Swale Leaching - S1 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 5,997 98 Paved parking, HSG A 18,845 39 >75% Grass cover, Good, HSG A 24,842 53 Weighted Average 18,845 75.86% Pervious Area 5,997 24.14% 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)0.36 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=24,842 sf Runoff Volume=0.038 af Runoff Depth=0.81" Flow Length=160' Tc=9.5 min CN=53 0.34 cfs Type III 24-hr 10-year Rainfall=4.88"8807.Peak Discharge(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 51HydroCAD® 10.20-2g s/n 08678 © 2022 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 0.05 0.06 12.30 3.22 0.20 0.27 12.60 3.48 0.28 0.13 12.90 3.62 0.32 0.08 13.20 3.73 0.35 0.07 13.50 3.82 0.38 0.06 13.80 3.91 0.41 0.06 14.10 3.98 0.44 0.05 14.40 4.05 0.46 0.05 14.70 4.11 0.49 0.04 15.00 4.17 0.51 0.04 15.30 4.22 0.53 0.04 Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 15.60 4.27 0.55 0.04 15.90 4.31 0.56 0.03 16.20 4.35 0.58 0.03 16.50 4.38 0.59 0.03 16.80 4.42 0.61 0.03 17.10 4.45 0.62 0.02 17.40 4.48 0.63 0.02 17.70 4.50 0.64 0.02 18.00 4.53 0.65 0.02 18.30 4.55 0.66 0.02 18.60 4.57 0.67 0.02 18.90 4.60 0.68 0.02 19.20 4.62 0.69 0.02 19.50 4.64 0.70 0.02 19.80 4.66 0.71 0.02 20.10 4.68 0.72 0.02 20.40 4.70 0.72 0.02 20.70 4.71 0.73 0.02 21.00 4.73 0.74 0.01 21.30 4.75 0.75 0.01 21.60 4.76 0.75 0.01 21.90 4.78 0.76 0.01 22.20 4.80 0.77 0.01 22.50 4.81 0.78 0.01 22.80 4.83 0.78 0.01 23.10 4.84 0.79 0.01 23.40 4.85 0.79 0.01 23.70 4.87 0.80 0.01 24.00 4.88 0.81 0.01 24.30 4.88 0.81 0.00 24.60 4.88 0.81 0.00 24.90 4.88 0.81 0.00 25.20 4.88 0.81 0.00 25.50 4.88 0.81 0.00 25.80 4.88 0.81 0.00 26.10 4.88 0.81 0.00 26.40 4.88 0.81 0.00 26.70 4.88 0.81 0.00 27.00 4.88 0.81 0.00 27.30 4.88 0.81 0.00 27.60 4.88 0.81 0.00 27.90 4.88 0.81 0.00 Type III 24-hr 10-year Rainfall=4.88"8807.Peak Discharge(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 52HydroCAD® 10.20-2g s/n 08678 © 2022 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" Routed to Pond S2 : Grassed Swale Leaching - S2 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 53HydroCAD® 10.20-2g s/n 08678 © 2022 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 54HydroCAD® 10.20-2g s/n 08678 © 2022 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" Routed to Pond S3 : Grassed Swale Leaching - S3 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 55HydroCAD® 10.20-2g s/n 08678 © 2022 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 56HydroCAD® 10.20-2g s/n 08678 © 2022 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" Routed to Pond S4 : Grassed Swale Leaching - S4 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 57HydroCAD® 10.20-2g s/n 08678 © 2022 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 58HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Summary for Subcatchment 5S: Post-Development Watershed - S5 Runoff = 0.04 cfs @ 12.40 hrs, Volume= 0.012 af, Depth= 0.28" Routed to Pond S5 : Grassed Swale Leaching - S5 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 1,359 98 Paved parking, HSG A 15,534 39 >75% Grass cover, Good, HSG A 4,500 36 Woods, Fair, HSG A 21,393 42 Weighted Average 20,034 93.65% Pervious Area 1,359 6.35% 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)0.048 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=21,393 sf Runoff Volume=0.012 af Runoff Depth=0.28" Tc=6.0 min CN=42 0.04 cfs Type III 24-hr 10-year Rainfall=4.88"8807.Peak Discharge(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 59HydroCAD® 10.20-2g s/n 08678 © 2022 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 0.02 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 0.01 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 60HydroCAD® 10.20-2g s/n 08678 © 2022 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" Routed to Reach 1R : Post-Development Peak Discharge Rate 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 611 98 Paved parking, HSG A 30,000 39 >75% Grass cover, Good, HSG A 129,489 36 Woods, Fair, HSG A 160,100 37 Weighted Average 159,489 99.62% Pervious Area 611 0.38% 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=160,100 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 61HydroCAD® 10.20-2g s/n 08678 © 2022 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 62HydroCAD® 10.20-2g s/n 08678 © 2022 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" Routed to Reach 9R : Pre-Development Peak Discharge Rate 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 63HydroCAD® 10.20-2g s/n 08678 © 2022 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 64HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Summary for Reach 1R: Post-Development Peak Discharge Rate Inflow Area = 6.739 ac, 3.97% 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=6.739 ac 0.06 cfs 0.06 cfs Type III 24-hr 10-year Rainfall=4.88"8807.Peak Discharge(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 65HydroCAD® 10.20-2g s/n 08678 © 2022 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 66HydroCAD® 10.20-2g s/n 08678 © 2022 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 67HydroCAD® 10.20-2g s/n 08678 © 2022 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 68HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Summary for Pond S1: Grassed Swale Leaching - S1 Inflow Area = 0.570 ac, 24.14% Impervious, Inflow Depth = 0.81" for 10-year event Inflow = 0.34 cfs @ 12.17 hrs, Volume= 0.038 af Outflow = 0.07 cfs @ 13.15 hrs, Volume= 0.038 af, Atten= 80%, Lag= 58.9 min Discarded = 0.07 cfs @ 13.15 hrs, Volume= 0.038 af Primary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routed to Reach 1R : Post-Development Peak Discharge Rate Routing by Dyn-Stor-Ind method, Time Span= 0.00-27.99 hrs, dt= 0.03 hrs Peak Elev= 50.50' @ 13.15 hrs Surf.Area= 948 sf Storage= 430 cf Plug-Flow detention time= 62.6 min calculated for 0.038 af (100% of inflow) Center-of-Mass det. time= 62.6 min ( 969.2 - 906.7 ) 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=0.07 cfs @ 13.15 hrs HW=50.50' (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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 69HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Pond S1: Grassed Swale Leaching - S1 Inflow Outflow Discarded Primary Hydrograph Time (hours) 26242220181614121086420Flow (cfs)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=0.570 ac Peak Elev=50.50' Storage=430 cf 0.34 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 70HydroCAD® 10.20-2g s/n 08678 © 2022 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 71HydroCAD® 10.20-2g s/n 08678 © 2022 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 0.06 6 50.01 0.03 0.03 0.00 12.60 0.13 389 50.45 0.06 0.06 0.00 13.20 0.07 430 50.50 0.07 0.07 0.00 13.80 0.06 416 50.48 0.07 0.07 0.00 14.40 0.05 384 50.45 0.06 0.06 0.00 15.00 0.04 342 50.40 0.06 0.06 0.00 15.60 0.04 293 50.35 0.06 0.06 0.00 16.20 0.03 236 50.29 0.06 0.06 0.00 16.80 0.03 176 50.22 0.05 0.05 0.00 17.40 0.02 117 50.15 0.05 0.05 0.00 18.00 0.02 58 50.07 0.05 0.05 0.00 18.60 0.02 4 50.01 0.02 0.02 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 0.01 3 50.00 0.01 0.01 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 72HydroCAD® 10.20-2g s/n 08678 © 2022 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 73HydroCAD® 10.20-2g s/n 08678 © 2022 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 50.05 795 819 39 50.10 812 860 80 50.15 828 901 121 50.20 845 943 162 50.25 862 985 205 50.30 879 1,027 249 50.35 896 1,071 293 50.40 914 1,114 338 50.45 931 1,159 384 50.50 949 1,203 431 50.55 967 1,248 479 50.60 985 1,294 528 50.65 1,003 1,340 578 50.70 1,022 1,387 628 50.75 1,040 1,434 680 50.80 1,059 1,482 732 50.85 1,078 1,531 786 50.90 1,097 1,579 840 50.95 1,116 1,629 895 51.00 1,136 1,678 952 51.05 1,155 1,729 1,009 51.10 1,175 1,780 1,067 51.15 1,195 1,831 1,126 51.20 1,215 1,883 1,187 51.25 1,235 1,935 1,248 51.30 1,256 1,988 1,310 51.35 1,276 2,041 1,373 51.40 1,297 2,095 1,438 51.45 1,318 2,150 1,503 51.50 1,339 2,204 1,570 51.55 1,360 2,260 1,637 51.60 1,382 2,316 1,706 51.65 1,403 2,372 1,775 51.70 1,425 2,429 1,846 51.75 1,447 2,487 1,918 51.80 1,469 2,545 1,991 51.85 1,491 2,603 2,065 51.90 1,514 2,662 2,140 51.95 1,536 2,722 2,216 52.00 1,559 2,781 2,293 Type III 24-hr 10-year Rainfall=4.88"8807.Peak Discharge(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 74HydroCAD® 10.20-2g s/n 08678 © 2022 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 Routed to Reach 1R : Post-Development Peak Discharge Rate 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 75HydroCAD® 10.20-2g s/n 08678 © 2022 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 76HydroCAD® 10.20-2g s/n 08678 © 2022 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 77HydroCAD® 10.20-2g s/n 08678 © 2022 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 78HydroCAD® 10.20-2g s/n 08678 © 2022 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 79HydroCAD® 10.20-2g s/n 08678 © 2022 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 38.02 646 648 13 38.04 654 658 26 38.06 662 669 39 38.08 670 679 52 38.10 678 689 66 38.12 686 699 79 38.14 695 710 93 38.16 703 720 107 38.18 711 730 121 38.20 720 741 136 38.22 728 751 150 38.24 736 761 165 38.26 745 772 180 38.28 754 782 195 38.30 762 792 210 38.32 771 803 225 38.34 780 813 241 38.36 788 824 256 38.38 797 834 272 38.40 806 844 288 38.42 815 855 304 38.44 824 865 321 38.46 833 876 337 38.48 842 886 354 38.50 851 897 371 38.52 860 907 388 38.54 870 918 405 38.56 879 928 423 38.58 888 939 441 38.60 897 949 458 38.62 907 960 476 38.64 916 971 495 38.66 926 981 513 38.68 935 992 532 38.70 945 1,002 551 38.72 955 1,013 570 38.74 964 1,024 589 38.76 974 1,034 608 38.78 984 1,045 628 38.80 994 1,056 647 38.82 1,004 1,066 667 38.84 1,014 1,077 688 38.86 1,024 1,088 708 38.88 1,034 1,099 729 38.90 1,044 1,109 749 38.92 1,054 1,120 770 38.94 1,064 1,131 792 38.96 1,074 1,142 813 38.98 1,085 1,152 834 39.00 1,095 1,163 856 Type III 24-hr 10-year Rainfall=4.88"8807.Peak Discharge(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 80HydroCAD® 10.20-2g s/n 08678 © 2022 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 Routed to Reach 1R : Post-Development Peak Discharge Rate 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 81HydroCAD® 10.20-2g s/n 08678 © 2022 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 82HydroCAD® 10.20-2g s/n 08678 © 2022 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 83HydroCAD® 10.20-2g s/n 08678 © 2022 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 84HydroCAD® 10.20-2g s/n 08678 © 2022 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 85HydroCAD® 10.20-2g s/n 08678 © 2022 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 28.05 2,046 2,098 101 28.10 2,088 2,193 205 28.15 2,130 2,290 310 28.20 2,173 2,388 418 28.25 2,217 2,488 527 28.30 2,260 2,589 639 28.35 2,305 2,692 753 28.40 2,349 2,796 870 28.45 2,394 2,902 988 28.50 2,440 3,009 1,109 28.55 2,486 3,118 1,232 28.60 2,532 3,229 1,358 28.65 2,579 3,341 1,485 28.70 2,626 3,454 1,616 28.75 2,674 3,569 1,748 28.80 2,722 3,685 1,883 28.85 2,770 3,803 2,020 28.90 2,819 3,923 2,160 28.95 2,869 4,044 2,302 29.00 2,918 4,166 2,447 29.05 2,969 4,290 2,594 29.10 3,019 4,416 2,744 29.15 3,070 4,543 2,896 29.20 3,122 4,671 3,051 29.25 3,174 4,801 3,208 29.30 3,226 4,933 3,368 29.35 3,279 5,066 3,531 29.40 3,332 5,200 3,696 29.45 3,386 5,336 3,864 29.50 3,440 5,474 4,035 29.55 3,494 5,613 4,208 29.60 3,549 5,754 4,384 29.65 3,605 5,896 4,563 29.70 3,660 6,040 4,745 29.75 3,717 6,185 4,929 29.80 3,773 6,331 5,116 29.85 3,830 6,480 5,306 29.90 3,888 6,629 5,499 29.95 3,946 6,781 5,695 30.00 4,004 6,933 5,894 Type III 24-hr 10-year Rainfall=4.88"8807.Peak Discharge(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 86HydroCAD® 10.20-2g s/n 08678 © 2022 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 Routed to Reach 1R : Post-Development Peak Discharge Rate 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 87HydroCAD® 10.20-2g s/n 08678 © 2022 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 88HydroCAD® 10.20-2g s/n 08678 © 2022 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 89HydroCAD® 10.20-2g s/n 08678 © 2022 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 90HydroCAD® 10.20-2g s/n 08678 © 2022 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 91HydroCAD® 10.20-2g s/n 08678 © 2022 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 56.02 251 252 5 56.04 255 256 10 56.06 258 261 15 56.08 262 265 20 56.10 265 269 26 56.12 269 274 31 56.14 272 278 36 56.16 276 282 42 56.18 279 287 47 56.20 283 291 53 56.22 287 295 59 56.24 290 300 65 56.26 294 304 70 56.28 298 308 76 56.30 301 313 82 56.32 305 317 88 56.34 309 322 94 56.36 313 326 101 56.38 316 330 107 56.40 320 335 113 56.42 324 339 120 56.44 328 344 126 56.46 332 348 133 56.48 336 353 140 56.50 340 357 146 56.52 344 362 153 56.54 348 367 160 56.56 352 371 167 56.58 356 376 174 56.60 360 380 181 56.62 364 385 189 56.64 368 389 196 56.66 372 394 203 56.68 376 399 211 56.70 381 403 218 56.72 385 408 226 56.74 389 413 234 56.76 393 417 242 56.78 397 422 249 56.80 402 427 257 56.82 406 431 266 56.84 410 436 274 56.86 415 441 282 56.88 419 446 290 56.90 424 450 299 56.92 428 455 307 56.94 432 460 316 56.96 437 465 325 56.98 441 470 333 57.00 446 474 342 Type III 24-hr 10-year Rainfall=4.88"8807.Peak Discharge(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 92HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Summary for Pond S5: Grassed Swale Leaching - S5 Inflow Area = 0.491 ac, 6.35% Impervious, Inflow Depth = 0.28" for 10-year event Inflow = 0.04 cfs @ 12.40 hrs, Volume= 0.012 af Outflow = 0.04 cfs @ 12.47 hrs, Volume= 0.012 af, Atten= 8%, Lag= 4.7 min Discarded = 0.04 cfs @ 12.47 hrs, Volume= 0.012 af Primary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routed to Reach 1R : Post-Development Peak Discharge Rate Routing by Dyn-Stor-Ind method, Time Span= 0.00-27.99 hrs, dt= 0.03 hrs Peak Elev= 48.01' @ 12.47 hrs Surf.Area= 724 sf Storage= 8 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 @ 12.47 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 93HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Pond S5: Grassed Swale Leaching - S5 Inflow Outflow Discarded Primary Hydrograph Time (hours) 26242220181614121086420Flow (cfs)0.045 0.04 0.035 0.03 0.025 0.02 0.015 0.01 0.005 0 Inflow Area=0.491 ac Peak Elev=48.01' Storage=8 cf 0.04 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 94HydroCAD® 10.20-2g s/n 08678 © 2022 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 95HydroCAD® 10.20-2g s/n 08678 © 2022 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 6 48.01 0.03 0.03 0.00 13.20 0.02 4 48.01 0.02 0.02 0.00 13.80 0.02 4 48.00 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 0.01 3 48.00 0.01 0.01 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 1 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 96HydroCAD® 10.20-2g s/n 08678 © 2022 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 97HydroCAD® 10.20-2g s/n 08678 © 2022 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 48.02 726 726 14 48.04 731 732 29 48.06 736 737 44 48.08 740 743 58 48.10 745 748 73 48.12 750 754 88 48.14 755 759 103 48.16 760 764 118 48.18 765 770 134 48.20 770 775 149 48.22 775 781 165 48.24 780 786 180 48.26 785 792 196 48.28 790 797 212 48.30 795 803 227 48.32 800 809 243 48.34 806 814 259 48.36 811 820 276 48.38 816 825 292 48.40 821 831 308 48.42 826 836 325 48.44 831 842 341 48.46 836 848 358 48.48 842 853 375 48.50 847 859 392 48.52 852 865 409 48.54 857 870 426 48.56 863 876 443 48.58 868 882 460 48.60 873 887 478 48.62 879 893 495 48.64 884 899 513 48.66 889 904 530 48.68 895 910 548 48.70 900 916 566 48.72 906 922 584 48.74 911 927 602 48.76 916 933 621 48.78 922 939 639 48.80 927 945 658 48.82 933 951 676 48.84 938 956 695 48.86 944 962 714 48.88 949 968 733 48.90 955 974 752 48.92 961 980 771 48.94 966 986 790 48.96 972 992 810 48.98 977 998 829 49.00 983 1,003 849 Type III 24-hr 25-year Rainfall=5.84"8807.Peak Discharge(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 98HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Summary for Subcatchment 1S: Post-Development Watershed - S1 Runoff = 0.63 cfs @ 12.16 hrs, Volume= 0.061 af, Depth= 1.28" Routed to Pond S1 : Grassed Swale Leaching - S1 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 5,997 98 Paved parking, HSG A 18,845 39 >75% Grass cover, Good, HSG A 24,842 53 Weighted Average 18,845 75.86% Pervious Area 5,997 24.14% 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=24,842 sf Runoff Volume=0.061 af Runoff Depth=1.28" Flow Length=160' Tc=9.5 min CN=53 0.63 cfs Type III 24-hr 25-year Rainfall=5.84"8807.Peak Discharge(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 99HydroCAD® 10.20-2g s/n 08678 © 2022 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 0.00 0.01 12.00 2.92 0.13 0.19 12.30 3.86 0.40 0.46 12.60 4.17 0.51 0.20 12.90 4.33 0.57 0.13 13.20 4.46 0.63 0.10 13.50 4.58 0.67 0.09 13.80 4.68 0.72 0.08 14.10 4.76 0.75 0.07 14.40 4.85 0.79 0.07 14.70 4.92 0.82 0.06 15.00 4.99 0.86 0.06 15.30 5.05 0.88 0.06 Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 15.60 5.11 0.91 0.05 15.90 5.16 0.94 0.05 16.20 5.20 0.96 0.04 16.50 5.25 0.98 0.04 16.80 5.29 1.00 0.04 17.10 5.32 1.01 0.03 17.40 5.36 1.03 0.03 17.70 5.39 1.05 0.03 18.00 5.42 1.06 0.03 18.30 5.45 1.08 0.03 18.60 5.47 1.09 0.03 18.90 5.50 1.10 0.03 19.20 5.53 1.12 0.02 19.50 5.55 1.13 0.02 19.80 5.57 1.14 0.02 20.10 5.60 1.15 0.02 20.40 5.62 1.16 0.02 20.70 5.64 1.17 0.02 21.00 5.66 1.19 0.02 21.30 5.68 1.20 0.02 21.60 5.70 1.21 0.02 21.90 5.72 1.22 0.02 22.20 5.74 1.23 0.02 22.50 5.76 1.24 0.02 22.80 5.78 1.24 0.02 23.10 5.79 1.25 0.02 23.40 5.81 1.26 0.02 23.70 5.82 1.27 0.02 24.00 5.84 1.28 0.02 24.30 5.84 1.28 0.00 24.60 5.84 1.28 0.00 24.90 5.84 1.28 0.00 25.20 5.84 1.28 0.00 25.50 5.84 1.28 0.00 25.80 5.84 1.28 0.00 26.10 5.84 1.28 0.00 26.40 5.84 1.28 0.00 26.70 5.84 1.28 0.00 27.00 5.84 1.28 0.00 27.30 5.84 1.28 0.00 27.60 5.84 1.28 0.00 27.90 5.84 1.28 0.00 Type III 24-hr 25-year Rainfall=5.84"8807.Peak Discharge(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 100HydroCAD® 10.20-2g s/n 08678 © 2022 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" Routed to Pond S2 : Grassed Swale Leaching - S2 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 101HydroCAD® 10.20-2g s/n 08678 © 2022 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 102HydroCAD® 10.20-2g s/n 08678 © 2022 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" Routed to Pond S3 : Grassed Swale Leaching - S3 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 103HydroCAD® 10.20-2g s/n 08678 © 2022 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 104HydroCAD® 10.20-2g s/n 08678 © 2022 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" Routed to Pond S4 : Grassed Swale Leaching - S4 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 105HydroCAD® 10.20-2g s/n 08678 © 2022 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 106HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Summary for Subcatchment 5S: Post-Development Watershed - S5 Runoff = 0.13 cfs @ 12.28 hrs, Volume= 0.023 af, Depth= 0.56" Routed to Pond S5 : Grassed Swale Leaching - S5 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 1,359 98 Paved parking, HSG A 15,534 39 >75% Grass cover, Good, HSG A 4,500 36 Woods, Fair, HSG A 21,393 42 Weighted Average 20,034 93.65% Pervious Area 1,359 6.35% 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)0.14 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=21,393 sf Runoff Volume=0.023 af Runoff Depth=0.56" Tc=6.0 min CN=42 0.13 cfs Type III 24-hr 25-year Rainfall=5.84"8807.Peak Discharge(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 107HydroCAD® 10.20-2g s/n 08678 © 2022 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 0.13 12.60 4.17 0.13 0.06 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 0.03 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 0.02 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 108HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Summary for Subcatchment 6S: Post-Development Watershed - Non-Recharge Areas Only Runoff = 0.29 cfs @ 12.52 hrs, Volume= 0.093 af, Depth= 0.30" Routed to Reach 1R : Post-Development Peak Discharge Rate 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 611 98 Paved parking, HSG A 30,000 39 >75% Grass cover, Good, HSG A 129,489 36 Woods, Fair, HSG A 160,100 37 Weighted Average 159,489 99.62% Pervious Area 611 0.38% 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)0.32 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=160,100 sf Runoff Volume=0.093 af Runoff Depth=0.30" Flow Length=550' Tc=12.6 min CN=37 0.29 cfs Type III 24-hr 25-year Rainfall=5.84"8807.Peak Discharge(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 109HydroCAD® 10.20-2g s/n 08678 © 2022 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 0.20 13.20 4.46 0.06 0.17 13.50 4.58 0.08 0.17 13.80 4.68 0.09 0.16 14.10 4.76 0.10 0.15 14.40 4.85 0.11 0.15 14.70 4.92 0.12 0.14 15.00 4.99 0.13 0.14 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 0.07 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 110HydroCAD® 10.20-2g s/n 08678 © 2022 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" Routed to Reach 9R : Pre-Development Peak Discharge Rate 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 111HydroCAD® 10.20-2g s/n 08678 © 2022 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 112HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Summary for Reach 1R: Post-Development Peak Discharge Rate Inflow Area = 6.739 ac, 3.97% Impervious, Inflow Depth = 0.17" for 25-year event Inflow = 0.29 cfs @ 12.52 hrs, Volume= 0.093 af Outflow = 0.29 cfs @ 12.52 hrs, Volume= 0.093 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)0.32 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=6.739 ac 0.29 cfs 0.29 cfs Type III 24-hr 25-year Rainfall=5.84"8807.Peak Discharge(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 113HydroCAD® 10.20-2g s/n 08678 © 2022 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 0.20 0.20 13.20 0.17 0.17 13.50 0.17 0.17 13.80 0.16 0.16 14.10 0.15 0.15 14.40 0.15 0.15 14.70 0.14 0.14 15.00 0.14 0.14 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 0.07 0.07 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 114HydroCAD® 10.20-2g s/n 08678 © 2022 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 115HydroCAD® 10.20-2g s/n 08678 © 2022 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 116HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Summary for Pond S1: Grassed Swale Leaching - S1 Inflow Area = 0.570 ac, 24.14% Impervious, Inflow Depth = 1.28" for 25-year event Inflow = 0.63 cfs @ 12.16 hrs, Volume= 0.061 af Outflow = 0.09 cfs @ 13.51 hrs, Volume= 0.061 af, Atten= 86%, Lag= 81.6 min Discarded = 0.09 cfs @ 13.51 hrs, Volume= 0.061 af Primary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routed to Reach 1R : Post-Development Peak Discharge Rate Routing by Dyn-Stor-Ind method, Time Span= 0.00-27.99 hrs, dt= 0.03 hrs Peak Elev= 50.93' @ 13.51 hrs Surf.Area= 1,110 sf Storage= 878 cf Plug-Flow detention time= 110.6 min calculated for 0.061 af (100% of inflow) Center-of-Mass det. time= 110.4 min ( 999.6 - 889.1 ) 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 @ 13.51 hrs HW=50.93' (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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 117HydroCAD® 10.20-2g s/n 08678 © 2022 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=0.570 ac Peak Elev=50.93' Storage=878 cf 0.63 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 118HydroCAD® 10.20-2g s/n 08678 © 2022 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 119HydroCAD® 10.20-2g s/n 08678 © 2022 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 0.19 41 50.05 0.05 0.05 0.00 12.60 0.20 783 50.85 0.09 0.09 0.00 13.20 0.10 873 50.93 0.09 0.09 0.00 13.80 0.08 874 50.93 0.09 0.09 0.00 14.40 0.07 843 50.90 0.09 0.09 0.00 15.00 0.06 794 50.86 0.09 0.09 0.00 15.60 0.05 732 50.80 0.08 0.08 0.00 16.20 0.04 657 50.73 0.08 0.08 0.00 16.80 0.04 576 50.65 0.07 0.07 0.00 17.40 0.03 494 50.57 0.07 0.07 0.00 18.00 0.03 412 50.48 0.07 0.07 0.00 18.60 0.03 331 50.39 0.06 0.06 0.00 19.20 0.02 257 50.31 0.06 0.06 0.00 19.80 0.02 187 50.23 0.05 0.05 0.00 20.40 0.02 123 50.15 0.05 0.05 0.00 21.00 0.02 64 50.08 0.05 0.05 0.00 21.60 0.02 10 50.01 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 120HydroCAD® 10.20-2g s/n 08678 © 2022 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 121HydroCAD® 10.20-2g s/n 08678 © 2022 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 50.05 795 819 39 50.10 812 860 80 50.15 828 901 121 50.20 845 943 162 50.25 862 985 205 50.30 879 1,027 249 50.35 896 1,071 293 50.40 914 1,114 338 50.45 931 1,159 384 50.50 949 1,203 431 50.55 967 1,248 479 50.60 985 1,294 528 50.65 1,003 1,340 578 50.70 1,022 1,387 628 50.75 1,040 1,434 680 50.80 1,059 1,482 732 50.85 1,078 1,531 786 50.90 1,097 1,579 840 50.95 1,116 1,629 895 51.00 1,136 1,678 952 51.05 1,155 1,729 1,009 51.10 1,175 1,780 1,067 51.15 1,195 1,831 1,126 51.20 1,215 1,883 1,187 51.25 1,235 1,935 1,248 51.30 1,256 1,988 1,310 51.35 1,276 2,041 1,373 51.40 1,297 2,095 1,438 51.45 1,318 2,150 1,503 51.50 1,339 2,204 1,570 51.55 1,360 2,260 1,637 51.60 1,382 2,316 1,706 51.65 1,403 2,372 1,775 51.70 1,425 2,429 1,846 51.75 1,447 2,487 1,918 51.80 1,469 2,545 1,991 51.85 1,491 2,603 2,065 51.90 1,514 2,662 2,140 51.95 1,536 2,722 2,216 52.00 1,559 2,781 2,293 Type III 24-hr 25-year Rainfall=5.84"8807.Peak Discharge(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 122HydroCAD® 10.20-2g s/n 08678 © 2022 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 Routed to Reach 1R : Post-Development Peak Discharge Rate 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 123HydroCAD® 10.20-2g s/n 08678 © 2022 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 124HydroCAD® 10.20-2g s/n 08678 © 2022 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 125HydroCAD® 10.20-2g s/n 08678 © 2022 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 126HydroCAD® 10.20-2g s/n 08678 © 2022 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 127HydroCAD® 10.20-2g s/n 08678 © 2022 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 38.02 646 648 13 38.04 654 658 26 38.06 662 669 39 38.08 670 679 52 38.10 678 689 66 38.12 686 699 79 38.14 695 710 93 38.16 703 720 107 38.18 711 730 121 38.20 720 741 136 38.22 728 751 150 38.24 736 761 165 38.26 745 772 180 38.28 754 782 195 38.30 762 792 210 38.32 771 803 225 38.34 780 813 241 38.36 788 824 256 38.38 797 834 272 38.40 806 844 288 38.42 815 855 304 38.44 824 865 321 38.46 833 876 337 38.48 842 886 354 38.50 851 897 371 38.52 860 907 388 38.54 870 918 405 38.56 879 928 423 38.58 888 939 441 38.60 897 949 458 38.62 907 960 476 38.64 916 971 495 38.66 926 981 513 38.68 935 992 532 38.70 945 1,002 551 38.72 955 1,013 570 38.74 964 1,024 589 38.76 974 1,034 608 38.78 984 1,045 628 38.80 994 1,056 647 38.82 1,004 1,066 667 38.84 1,014 1,077 688 38.86 1,024 1,088 708 38.88 1,034 1,099 729 38.90 1,044 1,109 749 38.92 1,054 1,120 770 38.94 1,064 1,131 792 38.96 1,074 1,142 813 38.98 1,085 1,152 834 39.00 1,095 1,163 856 Type III 24-hr 25-year Rainfall=5.84"8807.Peak Discharge(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 128HydroCAD® 10.20-2g s/n 08678 © 2022 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 Routed to Reach 1R : Post-Development Peak Discharge Rate 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 129HydroCAD® 10.20-2g s/n 08678 © 2022 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 130HydroCAD® 10.20-2g s/n 08678 © 2022 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 131HydroCAD® 10.20-2g s/n 08678 © 2022 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 132HydroCAD® 10.20-2g s/n 08678 © 2022 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 133HydroCAD® 10.20-2g s/n 08678 © 2022 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 28.05 2,046 2,098 101 28.10 2,088 2,193 205 28.15 2,130 2,290 310 28.20 2,173 2,388 418 28.25 2,217 2,488 527 28.30 2,260 2,589 639 28.35 2,305 2,692 753 28.40 2,349 2,796 870 28.45 2,394 2,902 988 28.50 2,440 3,009 1,109 28.55 2,486 3,118 1,232 28.60 2,532 3,229 1,358 28.65 2,579 3,341 1,485 28.70 2,626 3,454 1,616 28.75 2,674 3,569 1,748 28.80 2,722 3,685 1,883 28.85 2,770 3,803 2,020 28.90 2,819 3,923 2,160 28.95 2,869 4,044 2,302 29.00 2,918 4,166 2,447 29.05 2,969 4,290 2,594 29.10 3,019 4,416 2,744 29.15 3,070 4,543 2,896 29.20 3,122 4,671 3,051 29.25 3,174 4,801 3,208 29.30 3,226 4,933 3,368 29.35 3,279 5,066 3,531 29.40 3,332 5,200 3,696 29.45 3,386 5,336 3,864 29.50 3,440 5,474 4,035 29.55 3,494 5,613 4,208 29.60 3,549 5,754 4,384 29.65 3,605 5,896 4,563 29.70 3,660 6,040 4,745 29.75 3,717 6,185 4,929 29.80 3,773 6,331 5,116 29.85 3,830 6,480 5,306 29.90 3,888 6,629 5,499 29.95 3,946 6,781 5,695 30.00 4,004 6,933 5,894 Type III 24-hr 25-year Rainfall=5.84"8807.Peak Discharge(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 134HydroCAD® 10.20-2g s/n 08678 © 2022 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 Routed to Reach 1R : Post-Development Peak Discharge Rate 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 135HydroCAD® 10.20-2g s/n 08678 © 2022 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 136HydroCAD® 10.20-2g s/n 08678 © 2022 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 137HydroCAD® 10.20-2g s/n 08678 © 2022 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 138HydroCAD® 10.20-2g s/n 08678 © 2022 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 139HydroCAD® 10.20-2g s/n 08678 © 2022 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 56.02 251 252 5 56.04 255 256 10 56.06 258 261 15 56.08 262 265 20 56.10 265 269 26 56.12 269 274 31 56.14 272 278 36 56.16 276 282 42 56.18 279 287 47 56.20 283 291 53 56.22 287 295 59 56.24 290 300 65 56.26 294 304 70 56.28 298 308 76 56.30 301 313 82 56.32 305 317 88 56.34 309 322 94 56.36 313 326 101 56.38 316 330 107 56.40 320 335 113 56.42 324 339 120 56.44 328 344 126 56.46 332 348 133 56.48 336 353 140 56.50 340 357 146 56.52 344 362 153 56.54 348 367 160 56.56 352 371 167 56.58 356 376 174 56.60 360 380 181 56.62 364 385 189 56.64 368 389 196 56.66 372 394 203 56.68 376 399 211 56.70 381 403 218 56.72 385 408 226 56.74 389 413 234 56.76 393 417 242 56.78 397 422 249 56.80 402 427 257 56.82 406 431 266 56.84 410 436 274 56.86 415 441 282 56.88 419 446 290 56.90 424 450 299 56.92 428 455 307 56.94 432 460 316 56.96 437 465 325 56.98 441 470 333 57.00 446 474 342 Type III 24-hr 25-year Rainfall=5.84"8807.Peak Discharge(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 140HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Summary for Pond S5: Grassed Swale Leaching - S5 Inflow Area = 0.491 ac, 6.35% Impervious, Inflow Depth = 0.56" for 25-year event Inflow = 0.13 cfs @ 12.28 hrs, Volume= 0.023 af Outflow = 0.04 cfs @ 13.07 hrs, Volume= 0.023 af, Atten= 67%, Lag= 47.4 min Discarded = 0.04 cfs @ 13.07 hrs, Volume= 0.023 af Primary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routed to Reach 1R : Post-Development Peak Discharge Rate Routing by Dyn-Stor-Ind method, Time Span= 0.00-27.99 hrs, dt= 0.03 hrs Peak Elev= 48.20' @ 13.07 hrs Surf.Area= 769 sf Storage= 146 cf Plug-Flow detention time= 26.4 min calculated for 0.023 af (100% of inflow) Center-of-Mass det. time= 26.4 min ( 966.6 - 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 @ 13.07 hrs HW=48.20' (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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 141HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Pond S5: Grassed Swale Leaching - S5 Inflow Outflow Discarded Primary Hydrograph Time (hours) 26242220181614121086420Flow (cfs)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=0.491 ac Peak Elev=48.20' Storage=146 cf 0.13 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 142HydroCAD® 10.20-2g s/n 08678 © 2022 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 143HydroCAD® 10.20-2g s/n 08678 © 2022 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 0.06 132 48.18 0.04 0.04 0.00 13.20 0.04 146 48.20 0.04 0.04 0.00 13.80 0.04 138 48.18 0.04 0.04 0.00 14.40 0.03 118 48.16 0.04 0.04 0.00 15.00 0.03 92 48.12 0.04 0.04 0.00 15.60 0.02 59 48.08 0.04 0.04 0.00 16.20 0.02 19 48.03 0.04 0.04 0.00 16.80 0.02 3 48.00 0.02 0.02 0.00 17.40 0.02 3 48.00 0.02 0.02 0.00 18.00 0.01 3 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 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 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 25-year Rainfall=5.84"8807.Peak Discharge(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 144HydroCAD® 10.20-2g s/n 08678 © 2022 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 145HydroCAD® 10.20-2g s/n 08678 © 2022 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 48.02 726 726 14 48.04 731 732 29 48.06 736 737 44 48.08 740 743 58 48.10 745 748 73 48.12 750 754 88 48.14 755 759 103 48.16 760 764 118 48.18 765 770 134 48.20 770 775 149 48.22 775 781 165 48.24 780 786 180 48.26 785 792 196 48.28 790 797 212 48.30 795 803 227 48.32 800 809 243 48.34 806 814 259 48.36 811 820 276 48.38 816 825 292 48.40 821 831 308 48.42 826 836 325 48.44 831 842 341 48.46 836 848 358 48.48 842 853 375 48.50 847 859 392 48.52 852 865 409 48.54 857 870 426 48.56 863 876 443 48.58 868 882 460 48.60 873 887 478 48.62 879 893 495 48.64 884 899 513 48.66 889 904 530 48.68 895 910 548 48.70 900 916 566 48.72 906 922 584 48.74 911 927 602 48.76 916 933 621 48.78 922 939 639 48.80 927 945 658 48.82 933 951 676 48.84 938 956 695 48.86 944 962 714 48.88 949 968 733 48.90 955 974 752 48.92 961 980 771 48.94 966 986 790 48.96 972 992 810 48.98 977 998 829 49.00 983 1,003 849 Type III 24-hr 100-year Rainfall=7.31"8807.Peak Discharge(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 146HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Summary for Subcatchment 1S: Post-Development Watershed - S1 Runoff = 1.16 cfs @ 12.15 hrs, Volume= 0.101 af, Depth= 2.13" Routed to Pond S1 : Grassed Swale Leaching - S1 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 5,997 98 Paved parking, HSG A 18,845 39 >75% Grass cover, Good, HSG A 24,842 53 Weighted Average 18,845 75.86% Pervious Area 5,997 24.14% 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=24,842 sf Runoff Volume=0.101 af Runoff Depth=2.13" Flow Length=160' Tc=9.5 min CN=53 1.16 cfs Type III 24-hr 100-year Rainfall=7.31"8807.Peak Discharge(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 147HydroCAD® 10.20-2g s/n 08678 © 2022 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 0.00 11.40 2.09 0.01 0.02 11.70 2.48 0.05 0.08 12.00 3.65 0.33 0.44 12.30 4.83 0.78 0.78 12.60 5.22 0.96 0.32 12.90 5.43 1.07 0.20 13.20 5.59 1.15 0.15 13.50 5.73 1.22 0.14 13.80 5.85 1.29 0.13 14.10 5.96 1.34 0.11 14.40 6.06 1.40 0.11 14.70 6.16 1.45 0.10 15.00 6.24 1.50 0.09 15.30 6.32 1.54 0.08 Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 15.60 6.39 1.58 0.08 15.90 6.46 1.62 0.07 16.20 6.51 1.65 0.06 16.50 6.57 1.68 0.06 16.80 6.62 1.71 0.06 17.10 6.66 1.74 0.05 17.40 6.71 1.76 0.05 17.70 6.75 1.79 0.05 18.00 6.78 1.81 0.04 18.30 6.82 1.83 0.04 18.60 6.85 1.85 0.04 18.90 6.88 1.87 0.04 19.20 6.92 1.89 0.04 19.50 6.95 1.91 0.04 19.80 6.98 1.92 0.03 20.10 7.01 1.94 0.03 20.40 7.03 1.96 0.03 20.70 7.06 1.97 0.03 21.00 7.09 1.99 0.03 21.30 7.11 2.01 0.03 21.60 7.14 2.02 0.03 21.90 7.16 2.04 0.03 22.20 7.18 2.05 0.03 22.50 7.21 2.06 0.03 22.80 7.23 2.08 0.03 23.10 7.25 2.09 0.03 23.40 7.27 2.10 0.02 23.70 7.29 2.12 0.02 24.00 7.31 2.13 0.02 24.30 7.31 2.13 0.00 24.60 7.31 2.13 0.00 24.90 7.31 2.13 0.00 25.20 7.31 2.13 0.00 25.50 7.31 2.13 0.00 25.80 7.31 2.13 0.00 26.10 7.31 2.13 0.00 26.40 7.31 2.13 0.00 26.70 7.31 2.13 0.00 27.00 7.31 2.13 0.00 27.30 7.31 2.13 0.00 27.60 7.31 2.13 0.00 27.90 7.31 2.13 0.00 Type III 24-hr 100-year Rainfall=7.31"8807.Peak Discharge(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 148HydroCAD® 10.20-2g s/n 08678 © 2022 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" Routed to Pond S2 : Grassed Swale Leaching - S2 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 149HydroCAD® 10.20-2g s/n 08678 © 2022 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 150HydroCAD® 10.20-2g s/n 08678 © 2022 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" Routed to Pond S3 : Grassed Swale Leaching - S3 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 151HydroCAD® 10.20-2g s/n 08678 © 2022 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 152HydroCAD® 10.20-2g s/n 08678 © 2022 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" Routed to Pond S4 : Grassed Swale Leaching - S4 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 153HydroCAD® 10.20-2g s/n 08678 © 2022 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 154HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Summary for Subcatchment 5S: Post-Development Watershed - S5 Runoff = 0.44 cfs @ 12.12 hrs, Volume= 0.046 af, Depth= 1.13" Routed to Pond S5 : Grassed Swale Leaching - S5 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 1,359 98 Paved parking, HSG A 15,534 39 >75% Grass cover, Good, HSG A 4,500 36 Woods, Fair, HSG A 21,393 42 Weighted Average 20,034 93.65% Pervious Area 1,359 6.35% 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)0.48 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=21,393 sf Runoff Volume=0.046 af Runoff Depth=1.13" Tc=6.0 min CN=42 0.44 cfs Type III 24-hr 100-year Rainfall=7.31"8807.Peak Discharge(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 155HydroCAD® 10.20-2g s/n 08678 © 2022 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 0.12 12.30 4.83 0.27 0.30 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 0.07 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 0.05 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 0.04 15.90 6.46 0.78 0.04 16.20 6.51 0.80 0.04 16.50 6.57 0.82 0.03 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 0.02 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 0.01 23.40 7.27 1.11 0.01 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 156HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Summary for Subcatchment 6S: Post-Development Watershed - Non-Recharge Areas Only Runoff = 1.22 cfs @ 12.38 hrs, Volume= 0.223 af, Depth= 0.73" Routed to Reach 1R : Post-Development Peak Discharge Rate 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 611 98 Paved parking, HSG A 30,000 39 >75% Grass cover, Good, HSG A 129,489 36 Woods, Fair, HSG A 160,100 37 Weighted Average 159,489 99.62% Pervious Area 611 0.38% 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=160,100 sf Runoff Volume=0.223 af Runoff Depth=0.73" Flow Length=550' Tc=12.6 min CN=37 1.22 cfs Type III 24-hr 100-year Rainfall=7.31"8807.Peak Discharge(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 157HydroCAD® 10.20-2g s/n 08678 © 2022 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 1.18 12.60 5.22 0.17 0.87 12.90 5.43 0.21 0.52 13.20 5.59 0.25 0.42 13.50 5.73 0.28 0.39 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 0.30 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 0.13 19.20 6.92 0.60 0.12 19.50 6.95 0.61 0.12 19.80 6.98 0.62 0.12 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 0.11 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 0.10 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 0.09 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 158HydroCAD® 10.20-2g s/n 08678 © 2022 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" Routed to Reach 9R : Pre-Development Peak Discharge Rate 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 159HydroCAD® 10.20-2g s/n 08678 © 2022 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 160HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Summary for Reach 1R: Post-Development Peak Discharge Rate Inflow Area = 6.739 ac, 3.97% Impervious, Inflow Depth = 0.40" for 100-year event Inflow = 1.22 cfs @ 12.38 hrs, Volume= 0.223 af Outflow = 1.22 cfs @ 12.38 hrs, Volume= 0.223 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=6.739 ac 1.22 cfs 1.22 cfs Type III 24-hr 100-year Rainfall=7.31"8807.Peak Discharge(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 161HydroCAD® 10.20-2g s/n 08678 © 2022 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 1.18 1.18 12.60 0.87 0.87 12.90 0.52 0.52 13.20 0.42 0.42 13.50 0.39 0.39 13.80 0.36 0.36 14.10 0.33 0.33 14.40 0.31 0.31 14.70 0.30 0.30 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 0.13 0.13 19.20 0.12 0.12 19.50 0.12 0.12 19.80 0.12 0.12 20.10 0.11 0.11 20.40 0.11 0.11 20.70 0.11 0.11 21.00 0.11 0.11 21.30 0.10 0.10 21.60 0.10 0.10 21.90 0.10 0.10 22.20 0.10 0.10 22.50 0.09 0.09 22.80 0.09 0.09 23.10 0.09 0.09 23.40 0.09 0.09 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 162HydroCAD® 10.20-2g s/n 08678 © 2022 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 163HydroCAD® 10.20-2g s/n 08678 © 2022 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 164HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Summary for Pond S1: Grassed Swale Leaching - S1 Inflow Area = 0.570 ac, 24.14% Impervious, Inflow Depth = 2.13" for 100-year event Inflow = 1.16 cfs @ 12.15 hrs, Volume= 0.101 af Outflow = 0.13 cfs @ 13.71 hrs, Volume= 0.101 af, Atten= 89%, Lag= 93.8 min Discarded = 0.13 cfs @ 13.71 hrs, Volume= 0.101 af Primary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routed to Reach 1R : Post-Development Peak Discharge Rate Routing by Dyn-Stor-Ind method, Time Span= 0.00-27.99 hrs, dt= 0.03 hrs Peak Elev= 51.63' @ 13.71 hrs Surf.Area= 1,393 sf Storage= 1,743 cf Plug-Flow detention time= 167.7 min calculated for 0.101 af (100% of inflow) Center-of-Mass det. time= 167.6 min ( 1,039.5 - 871.9 ) 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=0.13 cfs @ 13.71 hrs HW=51.63' (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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 165HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Pond S1: Grassed Swale Leaching - S1 Inflow Outflow Discarded Primary Hydrograph Time (hours) 26242220181614121086420Flow (cfs)1 0 Inflow Area=0.570 ac Peak Elev=51.63' Storage=1,743 cf 1.16 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 166HydroCAD® 10.20-2g s/n 08678 © 2022 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 167HydroCAD® 10.20-2g s/n 08678 © 2022 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 0.02 3 50.00 0.02 0.02 0.00 12.00 0.44 185 50.23 0.05 0.05 0.00 12.60 0.32 1,553 51.49 0.12 0.12 0.00 13.20 0.15 1,722 51.61 0.13 0.13 0.00 13.80 0.13 1,743 51.63 0.13 0.13 0.00 14.40 0.11 1,708 51.60 0.13 0.13 0.00 15.00 0.09 1,644 51.56 0.13 0.13 0.00 15.60 0.08 1,557 51.49 0.12 0.12 0.00 16.20 0.06 1,447 51.41 0.12 0.12 0.00 16.80 0.06 1,327 51.31 0.11 0.11 0.00 17.40 0.05 1,204 51.21 0.11 0.11 0.00 18.00 0.04 1,080 51.11 0.10 0.10 0.00 18.60 0.04 956 51.00 0.09 0.09 0.00 19.20 0.04 840 50.90 0.09 0.09 0.00 19.80 0.03 732 50.80 0.08 0.08 0.00 20.40 0.03 630 50.70 0.08 0.08 0.00 21.00 0.03 537 50.61 0.07 0.07 0.00 21.60 0.03 449 50.52 0.07 0.07 0.00 22.20 0.03 368 50.43 0.06 0.06 0.00 22.80 0.03 293 50.35 0.06 0.06 0.00 23.40 0.02 222 50.27 0.06 0.06 0.00 24.00 0.02 156 50.19 0.05 0.05 0.00 24.60 0.00 61 50.08 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 168HydroCAD® 10.20-2g s/n 08678 © 2022 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 169HydroCAD® 10.20-2g s/n 08678 © 2022 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 50.05 795 819 39 50.10 812 860 80 50.15 828 901 121 50.20 845 943 162 50.25 862 985 205 50.30 879 1,027 249 50.35 896 1,071 293 50.40 914 1,114 338 50.45 931 1,159 384 50.50 949 1,203 431 50.55 967 1,248 479 50.60 985 1,294 528 50.65 1,003 1,340 578 50.70 1,022 1,387 628 50.75 1,040 1,434 680 50.80 1,059 1,482 732 50.85 1,078 1,531 786 50.90 1,097 1,579 840 50.95 1,116 1,629 895 51.00 1,136 1,678 952 51.05 1,155 1,729 1,009 51.10 1,175 1,780 1,067 51.15 1,195 1,831 1,126 51.20 1,215 1,883 1,187 51.25 1,235 1,935 1,248 51.30 1,256 1,988 1,310 51.35 1,276 2,041 1,373 51.40 1,297 2,095 1,438 51.45 1,318 2,150 1,503 51.50 1,339 2,204 1,570 51.55 1,360 2,260 1,637 51.60 1,382 2,316 1,706 51.65 1,403 2,372 1,775 51.70 1,425 2,429 1,846 51.75 1,447 2,487 1,918 51.80 1,469 2,545 1,991 51.85 1,491 2,603 2,065 51.90 1,514 2,662 2,140 51.95 1,536 2,722 2,216 52.00 1,559 2,781 2,293 Type III 24-hr 100-year Rainfall=7.31"8807.Peak Discharge(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 170HydroCAD® 10.20-2g s/n 08678 © 2022 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 Routed to Reach 1R : Post-Development Peak Discharge Rate 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 171HydroCAD® 10.20-2g s/n 08678 © 2022 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 172HydroCAD® 10.20-2g s/n 08678 © 2022 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 173HydroCAD® 10.20-2g s/n 08678 © 2022 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 174HydroCAD® 10.20-2g s/n 08678 © 2022 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 175HydroCAD® 10.20-2g s/n 08678 © 2022 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 38.02 646 648 13 38.04 654 658 26 38.06 662 669 39 38.08 670 679 52 38.10 678 689 66 38.12 686 699 79 38.14 695 710 93 38.16 703 720 107 38.18 711 730 121 38.20 720 741 136 38.22 728 751 150 38.24 736 761 165 38.26 745 772 180 38.28 754 782 195 38.30 762 792 210 38.32 771 803 225 38.34 780 813 241 38.36 788 824 256 38.38 797 834 272 38.40 806 844 288 38.42 815 855 304 38.44 824 865 321 38.46 833 876 337 38.48 842 886 354 38.50 851 897 371 38.52 860 907 388 38.54 870 918 405 38.56 879 928 423 38.58 888 939 441 38.60 897 949 458 38.62 907 960 476 38.64 916 971 495 38.66 926 981 513 38.68 935 992 532 38.70 945 1,002 551 38.72 955 1,013 570 38.74 964 1,024 589 38.76 974 1,034 608 38.78 984 1,045 628 38.80 994 1,056 647 38.82 1,004 1,066 667 38.84 1,014 1,077 688 38.86 1,024 1,088 708 38.88 1,034 1,099 729 38.90 1,044 1,109 749 38.92 1,054 1,120 770 38.94 1,064 1,131 792 38.96 1,074 1,142 813 38.98 1,085 1,152 834 39.00 1,095 1,163 856 Type III 24-hr 100-year Rainfall=7.31"8807.Peak Discharge(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 176HydroCAD® 10.20-2g s/n 08678 © 2022 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 Routed to Reach 1R : Post-Development Peak Discharge Rate 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 177HydroCAD® 10.20-2g s/n 08678 © 2022 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 178HydroCAD® 10.20-2g s/n 08678 © 2022 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 179HydroCAD® 10.20-2g s/n 08678 © 2022 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 180HydroCAD® 10.20-2g s/n 08678 © 2022 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 181HydroCAD® 10.20-2g s/n 08678 © 2022 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 28.05 2,046 2,098 101 28.10 2,088 2,193 205 28.15 2,130 2,290 310 28.20 2,173 2,388 418 28.25 2,217 2,488 527 28.30 2,260 2,589 639 28.35 2,305 2,692 753 28.40 2,349 2,796 870 28.45 2,394 2,902 988 28.50 2,440 3,009 1,109 28.55 2,486 3,118 1,232 28.60 2,532 3,229 1,358 28.65 2,579 3,341 1,485 28.70 2,626 3,454 1,616 28.75 2,674 3,569 1,748 28.80 2,722 3,685 1,883 28.85 2,770 3,803 2,020 28.90 2,819 3,923 2,160 28.95 2,869 4,044 2,302 29.00 2,918 4,166 2,447 29.05 2,969 4,290 2,594 29.10 3,019 4,416 2,744 29.15 3,070 4,543 2,896 29.20 3,122 4,671 3,051 29.25 3,174 4,801 3,208 29.30 3,226 4,933 3,368 29.35 3,279 5,066 3,531 29.40 3,332 5,200 3,696 29.45 3,386 5,336 3,864 29.50 3,440 5,474 4,035 29.55 3,494 5,613 4,208 29.60 3,549 5,754 4,384 29.65 3,605 5,896 4,563 29.70 3,660 6,040 4,745 29.75 3,717 6,185 4,929 29.80 3,773 6,331 5,116 29.85 3,830 6,480 5,306 29.90 3,888 6,629 5,499 29.95 3,946 6,781 5,695 30.00 4,004 6,933 5,894 Type III 24-hr 100-year Rainfall=7.31"8807.Peak Discharge(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 182HydroCAD® 10.20-2g s/n 08678 © 2022 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 Routed to Reach 1R : Post-Development Peak Discharge Rate 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 183HydroCAD® 10.20-2g s/n 08678 © 2022 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 184HydroCAD® 10.20-2g s/n 08678 © 2022 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 185HydroCAD® 10.20-2g s/n 08678 © 2022 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 186HydroCAD® 10.20-2g s/n 08678 © 2022 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 187HydroCAD® 10.20-2g s/n 08678 © 2022 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 56.02 251 252 5 56.04 255 256 10 56.06 258 261 15 56.08 262 265 20 56.10 265 269 26 56.12 269 274 31 56.14 272 278 36 56.16 276 282 42 56.18 279 287 47 56.20 283 291 53 56.22 287 295 59 56.24 290 300 65 56.26 294 304 70 56.28 298 308 76 56.30 301 313 82 56.32 305 317 88 56.34 309 322 94 56.36 313 326 101 56.38 316 330 107 56.40 320 335 113 56.42 324 339 120 56.44 328 344 126 56.46 332 348 133 56.48 336 353 140 56.50 340 357 146 56.52 344 362 153 56.54 348 367 160 56.56 352 371 167 56.58 356 376 174 56.60 360 380 181 56.62 364 385 189 56.64 368 389 196 56.66 372 394 203 56.68 376 399 211 56.70 381 403 218 56.72 385 408 226 56.74 389 413 234 56.76 393 417 242 56.78 397 422 249 56.80 402 427 257 56.82 406 431 266 56.84 410 436 274 56.86 415 441 282 56.88 419 446 290 56.90 424 450 299 56.92 428 455 307 56.94 432 460 316 56.96 437 465 325 56.98 441 470 333 57.00 446 474 342 Type III 24-hr 100-year Rainfall=7.31"8807.Peak Discharge(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 188HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Summary for Pond S5: Grassed Swale Leaching - S5 Inflow Area = 0.491 ac, 6.35% Impervious, Inflow Depth = 1.13" for 100-year event Inflow = 0.44 cfs @ 12.12 hrs, Volume= 0.046 af Outflow = 0.05 cfs @ 14.77 hrs, Volume= 0.046 af, Atten= 88%, Lag= 158.9 min Discarded = 0.05 cfs @ 14.77 hrs, Volume= 0.046 af Primary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routed to Reach 1R : Post-Development Peak Discharge Rate Routing by Dyn-Stor-Ind method, Time Span= 0.00-27.99 hrs, dt= 0.03 hrs Peak Elev= 48.82' @ 14.77 hrs Surf.Area= 933 sf Storage= 676 cf Plug-Flow detention time= 143.3 min calculated for 0.046 af (100% of inflow) Center-of-Mass det. time= 143.1 min ( 1,051.0 - 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 @ 14.77 hrs HW=48.82' (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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 189HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Pond S5: Grassed Swale Leaching - S5 Inflow Outflow Discarded Primary Hydrograph Time (hours) 26242220181614121086420Flow (cfs)0.45 0.4 0.35 0.3 0.25 0.2 0.15 0.1 0.05 0 Inflow Area=0.491 ac Peak Elev=48.82' Storage=676 cf 0.44 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 190HydroCAD® 10.20-2g s/n 08678 © 2022 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 191HydroCAD® 10.20-2g s/n 08678 © 2022 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 0.12 11 48.02 0.04 0.04 0.00 12.60 0.13 513 48.64 0.05 0.05 0.00 13.20 0.08 611 48.75 0.05 0.05 0.00 13.80 0.07 655 48.80 0.05 0.05 0.00 14.40 0.06 673 48.82 0.05 0.05 0.00 15.00 0.05 675 48.82 0.05 0.05 0.00 15.60 0.04 661 48.80 0.05 0.05 0.00 16.20 0.04 630 48.77 0.05 0.05 0.00 16.80 0.03 590 48.73 0.05 0.05 0.00 17.40 0.03 544 48.68 0.05 0.05 0.00 18.00 0.02 491 48.62 0.05 0.05 0.00 18.60 0.02 434 48.55 0.05 0.05 0.00 19.20 0.02 377 48.48 0.05 0.05 0.00 19.80 0.02 320 48.41 0.05 0.05 0.00 20.40 0.02 263 48.34 0.05 0.05 0.00 21.00 0.02 206 48.27 0.04 0.04 0.00 21.60 0.02 150 48.20 0.04 0.04 0.00 22.20 0.02 94 48.13 0.04 0.04 0.00 22.80 0.02 38 48.05 0.04 0.04 0.00 23.40 0.01 3 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 100-year Rainfall=7.31"8807.Peak Discharge(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 192HydroCAD® 10.20-2g s/n 08678 © 2022 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(1.18.23) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 193HydroCAD® 10.20-2g s/n 08678 © 2022 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 48.02 726 726 14 48.04 731 732 29 48.06 736 737 44 48.08 740 743 58 48.10 745 748 73 48.12 750 754 88 48.14 755 759 103 48.16 760 764 118 48.18 765 770 134 48.20 770 775 149 48.22 775 781 165 48.24 780 786 180 48.26 785 792 196 48.28 790 797 212 48.30 795 803 227 48.32 800 809 243 48.34 806 814 259 48.36 811 820 276 48.38 816 825 292 48.40 821 831 308 48.42 826 836 325 48.44 831 842 341 48.46 836 848 358 48.48 842 853 375 48.50 847 859 392 48.52 852 865 409 48.54 857 870 426 48.56 863 876 443 48.58 868 882 460 48.60 873 887 478 48.62 879 893 495 48.64 884 899 513 48.66 889 904 530 48.68 895 910 548 48.70 900 916 566 48.72 906 922 584 48.74 911 927 602 48.76 916 933 621 48.78 922 939 639 48.80 927 945 658 48.82 933 951 676 48.84 938 956 695 48.86 944 962 714 48.88 949 968 733 48.90 955 974 752 48.92 961 980 771 48.94 966 986 790 48.96 972 992 810 48.98 977 998 829 49.00 983 1,003 849