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HomeMy WebLinkAbout8807.Recharge(1.18.23)(Full Report)M1 - Watershed Area M3 - Dwelling RoofsM2 - Watershed Area 1AS Runoff into Catch Basins - M1 1BS Direct Runoff into Swale - M1 2AS Runoff into Catch Basins - M2 2BS Direct Runoff into Swale - M2 3S Roof Runoff (per Dwelling) 1AP Grassed Swale Leaching - M1 1AR CB (2) CB's in Pavement 1BP (1) 28'x14' Leaching Facility - (2) 6'x6' Leach Pits, 14' O.C. with stone around 2AP Grassed Swale Leaching - M2 2AR CB (7) CB's in Pavement 2BP (1) 70'x28' Leaching Facility - Two Rows of (5) 6'x6' Leach Pits, 14' O.C. with stone around 3P (2) 15.5' x 4.33' x 2.5' Leaching Facilities (per Dwelling) - Each with (2) Cultec Recharger 330XLHD Units (Stoneless) Routing Diagram for 8807.Recharge(10.19.22) 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.Recharge(10.19.22) 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 1AS: Runoff into Catch Basins - M1 Runoff = 0.06 cfs @ 12.33 hrs, Volume= 0.012 af, Depth= 0.27" Routed to Pond 1AR : (2) CB's in Pavement 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 6,286 98 Paved parking, HSG A 15,144 39 >75% Grass cover, Good, HSG A 2,500 36 Woods, Fair, HSG A 23,930 54 Weighted Average 17,644 73.73% Pervious Area 6,286 26.27% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.2 50 0.0600 0.16 Sheet Flow, Grass: Dense n= 0.240 P2= 3.36" 0.5 50 0.0600 1.71 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 0.3 60 0.0300 3.52 Shallow Concentrated Flow, Paved Kv= 20.3 fps 6.0 160 Total Subcatchment 1AS: Runoff into Catch Basins - M1 Runoff Hydrograph Time (hours) 26242220181614121086420Flow (cfs)0.065 0.06 0.055 0.05 0.045 0.04 0.035 0.03 0.025 0.02 0.015 0.01 0.005 0 Type III 24-hr 2-year Rainfall=3.36" Runoff Area=23,930 sf Runoff Volume=0.012 af Runoff Depth=0.27" Flow Length=160' Tc=6.0 min CN=54 0.06 cfs Type III 24-hr 2-year Rainfall=3.36"8807.Recharge(10.19.22) 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 1AS: Runoff into Catch Basins - M1 Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 0.00 0.00 0.00 0.00 0.30 0.01 0.00 0.00 0.60 0.02 0.00 0.00 0.90 0.03 0.00 0.00 1.20 0.04 0.00 0.00 1.50 0.05 0.00 0.00 1.80 0.06 0.00 0.00 2.10 0.07 0.00 0.00 2.40 0.08 0.00 0.00 2.70 0.09 0.00 0.00 3.00 0.10 0.00 0.00 3.30 0.12 0.00 0.00 3.60 0.13 0.00 0.00 3.90 0.14 0.00 0.00 4.20 0.15 0.00 0.00 4.50 0.17 0.00 0.00 4.80 0.18 0.00 0.00 5.10 0.20 0.00 0.00 5.40 0.21 0.00 0.00 5.70 0.23 0.00 0.00 6.00 0.24 0.00 0.00 6.30 0.26 0.00 0.00 6.60 0.28 0.00 0.00 6.90 0.30 0.00 0.00 7.20 0.32 0.00 0.00 7.50 0.34 0.00 0.00 7.80 0.37 0.00 0.00 8.10 0.39 0.00 0.00 8.40 0.42 0.00 0.00 8.70 0.45 0.00 0.00 9.00 0.49 0.00 0.00 9.30 0.53 0.00 0.00 9.60 0.57 0.00 0.00 9.90 0.62 0.00 0.00 10.20 0.67 0.00 0.00 10.50 0.73 0.00 0.00 10.80 0.79 0.00 0.00 11.10 0.87 0.00 0.00 11.40 0.96 0.00 0.00 11.70 1.14 0.00 0.00 12.00 1.68 0.00 0.00 12.30 2.22 0.03 0.06 12.60 2.40 0.05 0.03 12.90 2.49 0.07 0.03 13.20 2.57 0.08 0.02 13.50 2.63 0.09 0.02 13.80 2.69 0.10 0.02 14.10 2.74 0.11 0.02 14.40 2.79 0.12 0.02 14.70 2.83 0.13 0.02 15.00 2.87 0.14 0.02 15.30 2.91 0.15 0.02 Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 15.60 2.94 0.16 0.01 15.90 2.97 0.16 0.01 16.20 2.99 0.17 0.01 16.50 3.02 0.18 0.01 16.80 3.04 0.18 0.01 17.10 3.06 0.19 0.01 17.40 3.08 0.19 0.01 17.70 3.10 0.20 0.01 18.00 3.12 0.20 0.01 18.30 3.13 0.21 0.01 18.60 3.15 0.21 0.01 18.90 3.16 0.21 0.01 19.20 3.18 0.22 0.01 19.50 3.19 0.22 0.01 19.80 3.21 0.23 0.01 20.10 3.22 0.23 0.01 20.40 3.23 0.23 0.01 20.70 3.25 0.24 0.01 21.00 3.26 0.24 0.01 21.30 3.27 0.24 0.01 21.60 3.28 0.25 0.01 21.90 3.29 0.25 0.01 22.20 3.30 0.25 0.01 22.50 3.31 0.26 0.01 22.80 3.32 0.26 0.01 23.10 3.33 0.26 0.01 23.40 3.34 0.26 0.01 23.70 3.35 0.27 0.00 24.00 3.36 0.27 0.00 24.30 3.36 0.27 0.00 24.60 3.36 0.27 0.00 24.90 3.36 0.27 0.00 25.20 3.36 0.27 0.00 25.50 3.36 0.27 0.00 25.80 3.36 0.27 0.00 26.10 3.36 0.27 0.00 26.40 3.36 0.27 0.00 26.70 3.36 0.27 0.00 27.00 3.36 0.27 0.00 27.30 3.36 0.27 0.00 27.60 3.36 0.27 0.00 27.90 3.36 0.27 0.00 Type III 24-hr 2-year Rainfall=3.36"8807.Recharge(10.19.22) 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 1BS: Direct Runoff into Swale - M1 Runoff = 0.00 cfs @ 23.83 hrs, Volume= 0.000 af, Depth= 0.00" Routed to Pond 1AP : Grassed Swale Leaching - M1 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 7,973 39 >75% Grass cover, Good, HSG A 7,973 100.00% 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 1BS: Direct Runoff into Swale - M1 Runoff Hydrograph Time (hours) 26242220181614121086420Flow (cfs)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=7,973 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.Recharge(10.19.22) 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 1BS: Direct Runoff into Swale - M1 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.Recharge(10.19.22) 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 2AS: Runoff into Catch Basins - M2 Runoff = 0.32 cfs @ 12.35 hrs, Volume= 0.064 af, Depth= 0.27" Routed to Pond 2AR : (7) CB's in Pavement 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 33,633 98 Paved parking, HSG A 48,641 39 >75% Grass cover, Good, HSG A 42,245 36 Woods, Fair, HSG A 124,519 54 Weighted Average 90,886 72.99% Pervious Area 33,633 27.01% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.5 50 0.0500 0.15 Sheet Flow, Grass: Dense n= 0.240 P2= 3.36" 1.5 90 0.0200 0.99 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 0.4 130 0.0600 4.97 Shallow Concentrated Flow, Paved Kv= 20.3 fps 7.4 270 Total Subcatchment 2AS: Runoff into Catch Basins - M2 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 2-year Rainfall=3.36" Runoff Area=124,519 sf Runoff Volume=0.064 af Runoff Depth=0.27" Flow Length=270' Tc=7.4 min CN=54 0.32 cfs Type III 24-hr 2-year Rainfall=3.36"8807.Recharge(10.19.22) 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 2AS: Runoff into Catch Basins - M2 Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 0.00 0.00 0.00 0.00 0.30 0.01 0.00 0.00 0.60 0.02 0.00 0.00 0.90 0.03 0.00 0.00 1.20 0.04 0.00 0.00 1.50 0.05 0.00 0.00 1.80 0.06 0.00 0.00 2.10 0.07 0.00 0.00 2.40 0.08 0.00 0.00 2.70 0.09 0.00 0.00 3.00 0.10 0.00 0.00 3.30 0.12 0.00 0.00 3.60 0.13 0.00 0.00 3.90 0.14 0.00 0.00 4.20 0.15 0.00 0.00 4.50 0.17 0.00 0.00 4.80 0.18 0.00 0.00 5.10 0.20 0.00 0.00 5.40 0.21 0.00 0.00 5.70 0.23 0.00 0.00 6.00 0.24 0.00 0.00 6.30 0.26 0.00 0.00 6.60 0.28 0.00 0.00 6.90 0.30 0.00 0.00 7.20 0.32 0.00 0.00 7.50 0.34 0.00 0.00 7.80 0.37 0.00 0.00 8.10 0.39 0.00 0.00 8.40 0.42 0.00 0.00 8.70 0.45 0.00 0.00 9.00 0.49 0.00 0.00 9.30 0.53 0.00 0.00 9.60 0.57 0.00 0.00 9.90 0.62 0.00 0.00 10.20 0.67 0.00 0.00 10.50 0.73 0.00 0.00 10.80 0.79 0.00 0.00 11.10 0.87 0.00 0.00 11.40 0.96 0.00 0.00 11.70 1.14 0.00 0.00 12.00 1.68 0.00 0.00 12.30 2.22 0.03 0.31 12.60 2.40 0.05 0.18 12.90 2.49 0.07 0.14 13.20 2.57 0.08 0.12 13.50 2.63 0.09 0.11 13.80 2.69 0.10 0.11 14.10 2.74 0.11 0.10 14.40 2.79 0.12 0.09 14.70 2.83 0.13 0.09 15.00 2.87 0.14 0.08 15.30 2.91 0.15 0.08 Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 15.60 2.94 0.16 0.07 15.90 2.97 0.16 0.07 16.20 2.99 0.17 0.06 16.50 3.02 0.18 0.06 16.80 3.04 0.18 0.06 17.10 3.06 0.19 0.05 17.40 3.08 0.19 0.05 17.70 3.10 0.20 0.05 18.00 3.12 0.20 0.04 18.30 3.13 0.21 0.04 18.60 3.15 0.21 0.04 18.90 3.16 0.21 0.04 19.20 3.18 0.22 0.04 19.50 3.19 0.22 0.04 19.80 3.21 0.23 0.04 20.10 3.22 0.23 0.04 20.40 3.23 0.23 0.03 20.70 3.25 0.24 0.03 21.00 3.26 0.24 0.03 21.30 3.27 0.24 0.03 21.60 3.28 0.25 0.03 21.90 3.29 0.25 0.03 22.20 3.30 0.25 0.03 22.50 3.31 0.26 0.03 22.80 3.32 0.26 0.03 23.10 3.33 0.26 0.03 23.40 3.34 0.26 0.03 23.70 3.35 0.27 0.03 24.00 3.36 0.27 0.02 24.30 3.36 0.27 0.00 24.60 3.36 0.27 0.00 24.90 3.36 0.27 0.00 25.20 3.36 0.27 0.00 25.50 3.36 0.27 0.00 25.80 3.36 0.27 0.00 26.10 3.36 0.27 0.00 26.40 3.36 0.27 0.00 26.70 3.36 0.27 0.00 27.00 3.36 0.27 0.00 27.30 3.36 0.27 0.00 27.60 3.36 0.27 0.00 27.90 3.36 0.27 0.00 Type III 24-hr 2-year Rainfall=3.36"8807.Recharge(10.19.22) 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 2BS: Direct Runoff into Swale - M2 Runoff = 0.00 cfs @ 17.07 hrs, Volume= 0.003 af, Depth= 0.02" Routed to Pond 2AP : Grassed Swale Leaching - M2 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 25,000 36 Woods, Fair, HSG A 24,058 39 >75% Grass cover, Good, HSG A 4,089 98 Paved parking, HSG A 53,147 42 Weighted Average 49,058 92.31% Pervious Area 4,089 7.69% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 3.5 50 0.1600 0.24 Sheet Flow, Grass: Dense n= 0.240 P2= 3.36" 2.8 330 0.0800 1.98 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 6.3 380 Total Subcatchment 2BS: Direct Runoff into Swale - M2 Runoff Hydrograph Time (hours) 26242220181614121086420Flow (cfs)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=53,147 sf Runoff Volume=0.003 af Runoff Depth=0.02" Flow Length=380' Tc=6.3 min CN=42 0.00 cfs Type III 24-hr 2-year Rainfall=3.36"8807.Recharge(10.19.22) 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 2BS: Direct Runoff into Swale - M2 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.Recharge(10.19.22) 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 3S: Roof Runoff (per Dwelling) Runoff = 0.10 cfs @ 12.08 hrs, Volume= 0.008 af, Depth= 3.13" Routed to Pond 3P : (2) 15.5' x 4.33' x 2.5' Leaching Facilities (per Dwelling) - Each with (2) Cultec Recharger 330XLHD Units (Stoneless) 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 1,288 98 Roofs, HSG A 1,288 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 0.1 20 0.4000 3.33 Sheet Flow, Smooth surfaces n= 0.011 P2= 3.25" 0.1 20 Total, Increased to minimum Tc = 6.0 min Subcatchment 3S: Roof Runoff (per Dwelling) 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 2-year Rainfall=3.36" Runoff Area=1,288 sf Runoff Volume=0.008 af Runoff Depth=3.13" Flow Length=20' Slope=0.4000 '/' Tc=6.0 min CN=98 0.10 cfs Type III 24-hr 2-year Rainfall=3.36"8807.Recharge(10.19.22) 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 3S: Roof Runoff (per Dwelling) 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 0.01 0.00 2.70 0.09 0.01 0.00 3.00 0.10 0.01 0.00 3.30 0.12 0.02 0.00 3.60 0.13 0.03 0.00 3.90 0.14 0.03 0.00 4.20 0.15 0.04 0.00 4.50 0.17 0.05 0.00 4.80 0.18 0.06 0.00 5.10 0.20 0.07 0.00 5.40 0.21 0.08 0.00 5.70 0.23 0.09 0.00 6.00 0.24 0.10 0.00 6.30 0.26 0.11 0.00 6.60 0.28 0.13 0.00 6.90 0.30 0.14 0.00 7.20 0.32 0.16 0.00 7.50 0.34 0.18 0.00 7.80 0.37 0.20 0.00 8.10 0.39 0.22 0.00 8.40 0.42 0.25 0.00 8.70 0.45 0.28 0.00 9.00 0.49 0.31 0.00 9.30 0.53 0.34 0.00 9.60 0.57 0.38 0.00 9.90 0.62 0.43 0.00 10.20 0.67 0.47 0.00 10.50 0.73 0.53 0.01 10.80 0.79 0.59 0.01 11.10 0.87 0.66 0.01 11.40 0.96 0.75 0.01 11.70 1.14 0.93 0.02 12.00 1.68 1.46 0.06 12.30 2.22 1.99 0.04 12.60 2.40 2.17 0.01 12.90 2.49 2.26 0.01 13.20 2.57 2.34 0.01 13.50 2.63 2.40 0.01 13.80 2.69 2.46 0.01 14.10 2.74 2.51 0.00 14.40 2.79 2.56 0.00 14.70 2.83 2.60 0.00 15.00 2.87 2.64 0.00 15.30 2.91 2.68 0.00 Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 15.60 2.94 2.71 0.00 15.90 2.97 2.74 0.00 16.20 2.99 2.76 0.00 16.50 3.02 2.79 0.00 16.80 3.04 2.81 0.00 17.10 3.06 2.83 0.00 17.40 3.08 2.85 0.00 17.70 3.10 2.87 0.00 18.00 3.12 2.89 0.00 18.30 3.13 2.90 0.00 18.60 3.15 2.92 0.00 18.90 3.16 2.93 0.00 19.20 3.18 2.95 0.00 19.50 3.19 2.96 0.00 19.80 3.21 2.97 0.00 20.10 3.22 2.99 0.00 20.40 3.23 3.00 0.00 20.70 3.25 3.01 0.00 21.00 3.26 3.02 0.00 21.30 3.27 3.04 0.00 21.60 3.28 3.05 0.00 21.90 3.29 3.06 0.00 22.20 3.30 3.07 0.00 22.50 3.31 3.08 0.00 22.80 3.32 3.09 0.00 23.10 3.33 3.10 0.00 23.40 3.34 3.11 0.00 23.70 3.35 3.12 0.00 24.00 3.36 3.13 0.00 24.30 3.36 3.13 0.00 24.60 3.36 3.13 0.00 24.90 3.36 3.13 0.00 25.20 3.36 3.13 0.00 25.50 3.36 3.13 0.00 25.80 3.36 3.13 0.00 26.10 3.36 3.13 0.00 26.40 3.36 3.13 0.00 26.70 3.36 3.13 0.00 27.00 3.36 3.13 0.00 27.30 3.36 3.13 0.00 27.60 3.36 3.13 0.00 27.90 3.36 3.13 0.00 Type III 24-hr 2-year Rainfall=3.36"8807.Recharge(10.19.22) 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 Pond 1AP: Grassed Swale Leaching - M1 Inflow Area = 0.732 ac, 19.70% Impervious, Inflow Depth = 0.20" for 2-year event Inflow = 0.06 cfs @ 12.33 hrs, Volume= 0.012 af Outflow = 0.02 cfs @ 13.76 hrs, Volume= 0.012 af, Atten= 67%, Lag= 86.0 min Discarded = 0.02 cfs @ 13.76 hrs, Volume= 0.012 af Secondary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routed to Pond 1BP : (1) 28'x14' Leaching Facility - (2) 6'x6' Leach Pits, 14' O.C. with stone around Routing by Dyn-Stor-Ind method, Time Span= 0.00-27.99 hrs, dt= 0.03 hrs Peak Elev= 48.72' @ 13.76 hrs Surf.Area= 358 sf Storage= 76 cf Plug-Flow detention time= 32.2 min calculated for 0.012 af (100% of inflow) Center-of-Mass det. time= 32.2 min ( 987.3 - 955.1 ) Volume Invert Avail.Storage Storage Description #1 48.50' 2,417 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) 48.50 319 92.0 0 0 319 50.00 624 111.0 695 695 662 50.50 738 117.0 340 1,035 784 52.00 1,118 136.0 1,382 2,417 1,212 Device Routing Invert Outlet Devices #1 Discarded 48.50'2.410 in/hr Exfiltration over Wetted area Phase-In= 0.01' #2 Secondary 50.00'24.0" x 24.0" Horiz. Orifice/Grate C= 0.600 Limited to weir flow at low heads Discarded OutFlow Max=0.02 cfs @ 13.76 hrs HW=48.72' (Free Discharge) 1=Exfiltration (Exfiltration Controls 0.02 cfs) Secondary OutFlow Max=0.00 cfs @ 0.00 hrs HW=48.50' TW=41.50' (Dynamic Tailwater) 2=Orifice/Grate ( Controls 0.00 cfs) Type III 24-hr 2-year Rainfall=3.36"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 13HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Pond 1AP: Grassed Swale Leaching - M1 Inflow Outflow Discarded Secondary Hydrograph Time (hours) 26242220181614121086420Flow (cfs)0.065 0.06 0.055 0.05 0.045 0.04 0.035 0.03 0.025 0.02 0.015 0.01 0.005 0 Inflow Area=0.732 ac Peak Elev=48.72' Storage=76 cf 0.06 cfs 0.02 cfs 0.02 cfs 0.00 cfs Pond 1AP: Grassed Swale Leaching - M1 Total Discarded Secondary Stage-Discharge Discharge (cfs) 26242220181614121086420Elevation (feet)52 51 50 49 Exfiltration Orifice/Grate Type III 24-hr 2-year Rainfall=3.36"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 14HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Pond 1AP: Grassed Swale Leaching - M1 Surface Wetted Storage Stage-Area-Storage Storage (cubic-feet) 2,0001,5001,0005000 Surface/Horizontal/Wetted Area (sq-ft) 1,2001,0008006004002000 Elevation (feet)52 51 50 49 Grassed Swale Type III 24-hr 2-year Rainfall=3.36"8807.Recharge(10.19.22) 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 Pond 1AP: Grassed Swale Leaching - M1 Time (hours) Inflow (cfs) Storage (cubic-feet) Elevation (feet) Outflow (cfs) Discarded (cfs) Secondary (cfs) 0.00 0.00 0 48.50 0.00 0.00 0.00 0.60 0.00 0 48.50 0.00 0.00 0.00 1.20 0.00 0 48.50 0.00 0.00 0.00 1.80 0.00 0 48.50 0.00 0.00 0.00 2.40 0.00 0 48.50 0.00 0.00 0.00 3.00 0.00 0 48.50 0.00 0.00 0.00 3.60 0.00 0 48.50 0.00 0.00 0.00 4.20 0.00 0 48.50 0.00 0.00 0.00 4.80 0.00 0 48.50 0.00 0.00 0.00 5.40 0.00 0 48.50 0.00 0.00 0.00 6.00 0.00 0 48.50 0.00 0.00 0.00 6.60 0.00 0 48.50 0.00 0.00 0.00 7.20 0.00 0 48.50 0.00 0.00 0.00 7.80 0.00 0 48.50 0.00 0.00 0.00 8.40 0.00 0 48.50 0.00 0.00 0.00 9.00 0.00 0 48.50 0.00 0.00 0.00 9.60 0.00 0 48.50 0.00 0.00 0.00 10.20 0.00 0 48.50 0.00 0.00 0.00 10.80 0.00 0 48.50 0.00 0.00 0.00 11.40 0.00 0 48.50 0.00 0.00 0.00 12.00 0.00 0 48.50 0.00 0.00 0.00 12.60 0.03 60 48.68 0.02 0.02 0.00 13.20 0.02 73 48.72 0.02 0.02 0.00 13.80 0.02 76 48.72 0.02 0.02 0.00 14.40 0.02 72 48.71 0.02 0.02 0.00 15.00 0.02 66 48.70 0.02 0.02 0.00 15.60 0.01 55 48.67 0.02 0.02 0.00 16.20 0.01 40 48.62 0.02 0.02 0.00 16.80 0.01 23 48.57 0.02 0.02 0.00 17.40 0.01 5 48.52 0.02 0.02 0.00 18.00 0.01 1 48.50 0.01 0.01 0.00 18.60 0.01 1 48.50 0.01 0.01 0.00 19.20 0.01 1 48.50 0.01 0.01 0.00 19.80 0.01 1 48.50 0.01 0.01 0.00 20.40 0.01 1 48.50 0.01 0.01 0.00 21.00 0.01 1 48.50 0.01 0.01 0.00 21.60 0.01 1 48.50 0.01 0.01 0.00 22.20 0.01 1 48.50 0.01 0.01 0.00 22.80 0.01 1 48.50 0.01 0.01 0.00 23.40 0.01 1 48.50 0.01 0.01 0.00 24.00 0.00 1 48.50 0.00 0.00 0.00 24.60 0.00 0 48.50 0.00 0.00 0.00 25.20 0.00 0 48.50 0.00 0.00 0.00 25.80 0.00 0 48.50 0.00 0.00 0.00 26.40 0.00 0 48.50 0.00 0.00 0.00 27.00 0.00 0 48.50 0.00 0.00 0.00 27.60 0.00 0 48.50 0.00 0.00 0.00 Type III 24-hr 2-year Rainfall=3.36"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 16HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Stage-Discharge for Pond 1AP: Grassed Swale Leaching - M1 Elevation (feet) Discharge (cfs) Discarded (cfs) Secondary (cfs) 48.50 0.00 0.00 0.00 48.55 0.02 0.02 0.00 48.60 0.02 0.02 0.00 48.65 0.02 0.02 0.00 48.70 0.02 0.02 0.00 48.75 0.02 0.02 0.00 48.80 0.02 0.02 0.00 48.85 0.02 0.02 0.00 48.90 0.02 0.02 0.00 48.95 0.02 0.02 0.00 49.00 0.02 0.02 0.00 49.05 0.02 0.02 0.00 49.10 0.03 0.03 0.00 49.15 0.03 0.03 0.00 49.20 0.03 0.03 0.00 49.25 0.03 0.03 0.00 49.30 0.03 0.03 0.00 49.35 0.03 0.03 0.00 49.40 0.03 0.03 0.00 49.45 0.03 0.03 0.00 49.50 0.03 0.03 0.00 49.55 0.03 0.03 0.00 49.60 0.03 0.03 0.00 49.65 0.03 0.03 0.00 49.70 0.03 0.03 0.00 49.75 0.03 0.03 0.00 49.80 0.03 0.03 0.00 49.85 0.03 0.03 0.00 49.90 0.04 0.04 0.00 49.95 0.04 0.04 0.00 50.00 0.04 0.04 0.00 50.05 0.33 0.04 0.29 50.10 0.87 0.04 0.83 50.15 1.56 0.04 1.52 50.20 2.38 0.04 2.34 50.25 3.31 0.04 3.27 50.30 4.34 0.04 4.30 50.35 5.46 0.04 5.42 50.40 6.66 0.04 6.62 50.45 7.94 0.04 7.90 50.50 9.29 0.04 9.25 50.55 10.71 0.04 10.67 50.60 12.20 0.05 12.16 50.65 13.76 0.05 13.71 50.70 15.37 0.05 15.32 50.75 16.73 0.05 16.68 50.80 17.27 0.05 17.23 50.85 17.81 0.05 17.76 50.90 18.32 0.05 18.27 50.95 18.82 0.05 18.77 51.00 19.31 0.05 19.26 51.05 19.79 0.05 19.74 Elevation (feet) Discharge (cfs) Discarded (cfs) Secondary (cfs) 51.10 20.25 0.05 20.20 51.15 20.71 0.05 20.65 51.20 21.15 0.05 21.10 51.25 21.59 0.06 21.53 51.30 22.02 0.06 21.96 51.35 22.43 0.06 22.38 51.40 22.85 0.06 22.79 51.45 23.25 0.06 23.19 51.50 23.65 0.06 23.59 51.55 24.04 0.06 23.98 51.60 24.42 0.06 24.36 51.65 24.80 0.06 24.74 51.70 25.17 0.06 25.11 51.75 25.54 0.06 25.48 51.80 25.90 0.06 25.84 51.85 26.26 0.07 26.20 51.90 26.61 0.07 26.55 51.95 26.96 0.07 26.89 52.00 27.31 0.07 27.24 Type III 24-hr 2-year Rainfall=3.36"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 17HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 1AP: Grassed Swale Leaching - M1 Elevation (feet) Surface (sq-ft) Wetted (sq-ft) Storage (cubic-feet) 48.50 319 319 0 48.60 336 340 33 48.70 354 361 67 48.80 372 382 104 48.90 390 404 142 49.00 409 426 182 49.10 429 448 224 49.20 449 471 267 49.30 469 494 313 49.40 490 517 361 49.50 511 540 411 49.60 533 564 463 49.70 555 588 518 49.80 577 612 574 49.90 601 637 633 50.00 624 662 695 50.10 646 686 758 50.20 668 710 824 50.30 691 735 892 50.40 714 759 962 50.50 738 784 1,035 50.60 761 811 1,110 50.70 784 838 1,187 50.80 808 865 1,266 50.90 832 892 1,348 51.00 856 920 1,433 51.10 881 948 1,520 51.20 906 976 1,609 51.30 931 1,004 1,701 51.40 957 1,033 1,795 51.50 983 1,062 1,892 51.60 1,009 1,091 1,992 51.70 1,036 1,121 2,094 51.80 1,063 1,151 2,199 51.90 1,090 1,181 2,306 52.00 1,118 1,212 2,417 Type III 24-hr 2-year Rainfall=3.36"8807.Recharge(10.19.22) 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 Pond 1AR: (2) CB's in Pavement Inflow Area = 0.549 ac, 26.27% Impervious, Inflow Depth = 0.27" for 2-year event Inflow = 0.06 cfs @ 12.33 hrs, Volume= 0.012 af Outflow = 0.06 cfs @ 12.33 hrs, Volume= 0.012 af, Atten= 0%, Lag= 0.0 min Primary = 0.06 cfs @ 12.33 hrs, Volume= 0.012 af Routed to Pond 1AP : Grassed Swale Leaching - M1 Routing by Dyn-Stor-Ind method, Time Span= 0.00-27.99 hrs, dt= 0.03 hrs Peak Elev= 51.40' @ 12.33 hrs Flood Elev= 53.80' Device Routing Invert Outlet Devices #1 Primary 51.30'12.0" Round Culvert X 2.00 L= 50.0' CPP, projecting, no headwall, Ke= 0.900 Inlet / Outlet Invert= 51.30' / 50.50' S= 0.0160 '/' Cc= 0.900 n= 0.020 Corrugated PE, corrugated interior, Flow Area= 0.79 sf Primary OutFlow Max=0.06 cfs @ 12.33 hrs HW=51.40' TW=48.59' (Dynamic Tailwater) 1=Culvert (Barrel Controls 0.06 cfs @ 1.21 fps) Pond 1AR: (2) CB's in Pavement Inflow Primary Hydrograph Time (hours) 26242220181614121086420Flow (cfs)0.065 0.06 0.055 0.05 0.045 0.04 0.035 0.03 0.025 0.02 0.015 0.01 0.005 0 Inflow Area=0.549 ac Peak Elev=51.40' 12.0" Round Culvert x 2.00 n=0.020 L=50.0' S=0.0160 '/' 0.06 cfs 0.06 cfs Type III 24-hr 2-year Rainfall=3.36"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 19HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Pond 1AR: (2) CB's in Pavement Primary Stage-Discharge Discharge (cfs) 876543210Elevation (feet)53 52 Culvert Pond 1AR: (2) CB's in Pavement Storage Stage-Area-Storage Storage (acre-feet) 0Elevation (feet)53 52 Flood Elevation Type III 24-hr 2-year Rainfall=3.36"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 20HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Hydrograph for Pond 1AR: (2) CB's in Pavement Time (hours) Inflow (cfs) Elevation (feet) Primary (cfs) 0.00 0.00 51.30 0.00 0.30 0.00 51.30 0.00 0.60 0.00 51.30 0.00 0.90 0.00 51.30 0.00 1.20 0.00 51.30 0.00 1.50 0.00 51.30 0.00 1.80 0.00 51.30 0.00 2.10 0.00 51.30 0.00 2.40 0.00 51.30 0.00 2.70 0.00 51.30 0.00 3.00 0.00 51.30 0.00 3.30 0.00 51.30 0.00 3.60 0.00 51.30 0.00 3.90 0.00 51.30 0.00 4.20 0.00 51.30 0.00 4.50 0.00 51.30 0.00 4.80 0.00 51.30 0.00 5.10 0.00 51.30 0.00 5.40 0.00 51.30 0.00 5.70 0.00 51.30 0.00 6.00 0.00 51.30 0.00 6.30 0.00 51.30 0.00 6.60 0.00 51.30 0.00 6.90 0.00 51.30 0.00 7.20 0.00 51.30 0.00 7.50 0.00 51.30 0.00 7.80 0.00 51.30 0.00 8.10 0.00 51.30 0.00 8.40 0.00 51.30 0.00 8.70 0.00 51.30 0.00 9.00 0.00 51.30 0.00 9.30 0.00 51.30 0.00 9.60 0.00 51.30 0.00 9.90 0.00 51.30 0.00 10.20 0.00 51.30 0.00 10.50 0.00 51.30 0.00 10.80 0.00 51.30 0.00 11.10 0.00 51.30 0.00 11.40 0.00 51.30 0.00 11.70 0.00 51.30 0.00 12.00 0.00 51.30 0.00 12.30 0.06 51.40 0.06 12.60 0.03 51.37 0.03 12.90 0.03 51.37 0.03 13.20 0.02 51.36 0.02 13.50 0.02 51.36 0.02 13.80 0.02 51.36 0.02 14.10 0.02 51.35 0.02 14.40 0.02 51.35 0.02 14.70 0.02 51.35 0.02 15.00 0.02 51.35 0.02 15.30 0.02 51.35 0.02 Time (hours) Inflow (cfs) Elevation (feet) Primary (cfs) 15.60 0.01 51.35 0.01 15.90 0.01 51.35 0.01 16.20 0.01 51.34 0.01 16.50 0.01 51.34 0.01 16.80 0.01 51.34 0.01 17.10 0.01 51.34 0.01 17.40 0.01 51.34 0.01 17.70 0.01 51.34 0.01 18.00 0.01 51.34 0.01 18.30 0.01 51.34 0.01 18.60 0.01 51.34 0.01 18.90 0.01 51.34 0.01 19.20 0.01 51.34 0.01 19.50 0.01 51.34 0.01 19.80 0.01 51.33 0.01 20.10 0.01 51.33 0.01 20.40 0.01 51.33 0.01 20.70 0.01 51.33 0.01 21.00 0.01 51.33 0.01 21.30 0.01 51.33 0.01 21.60 0.01 51.33 0.01 21.90 0.01 51.33 0.01 22.20 0.01 51.33 0.01 22.50 0.01 51.33 0.01 22.80 0.01 51.33 0.01 23.10 0.01 51.33 0.01 23.40 0.01 51.33 0.01 23.70 0.00 51.33 0.00 24.00 0.00 51.33 0.00 24.30 0.00 51.30 0.00 24.60 0.00 51.30 0.00 24.90 0.00 51.30 0.00 25.20 0.00 51.30 0.00 25.50 0.00 51.30 0.00 25.80 0.00 51.30 0.00 26.10 0.00 51.30 0.00 26.40 0.00 51.30 0.00 26.70 0.00 51.30 0.00 27.00 0.00 51.30 0.00 27.30 0.00 51.30 0.00 27.60 0.00 51.30 0.00 27.90 0.00 51.30 0.00 Type III 24-hr 2-year Rainfall=3.36"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 21HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Stage-Discharge for Pond 1AR: (2) CB's in Pavement Elevation (feet) Primary (cfs) 51.30 0.00 51.32 0.00 51.34 0.01 51.36 0.02 51.38 0.04 51.40 0.07 51.42 0.10 51.44 0.13 51.46 0.17 51.48 0.22 51.50 0.27 51.52 0.32 51.54 0.38 51.56 0.44 51.58 0.51 51.60 0.58 51.62 0.66 51.64 0.74 51.66 0.82 51.68 0.91 51.70 1.00 51.72 1.09 51.74 1.19 51.76 1.29 51.78 1.39 51.80 1.49 51.82 1.60 51.84 1.71 51.86 1.82 51.88 1.93 51.90 2.05 51.92 2.17 51.94 2.28 51.96 2.40 51.98 2.52 52.00 2.64 52.02 2.76 52.04 2.88 52.06 3.00 52.08 3.12 52.10 3.24 52.12 3.36 52.14 3.47 52.16 3.58 52.18 3.69 52.20 3.80 52.22 3.90 52.24 3.99 52.26 4.08 52.28 4.16 52.30 4.22 52.32 4.31 Elevation (feet) Primary (cfs) 52.34 4.39 52.36 4.47 52.38 4.55 52.40 4.63 52.42 4.70 52.44 4.78 52.46 4.85 52.48 4.92 52.50 5.00 52.52 5.07 52.54 5.14 52.56 5.21 52.58 5.27 52.60 5.34 52.62 5.41 52.64 5.47 52.66 5.54 52.68 5.60 52.70 5.66 52.72 5.73 52.74 5.79 52.76 5.85 52.78 5.91 52.80 5.97 52.82 6.03 52.84 6.09 52.86 6.15 52.88 6.21 52.90 6.26 52.92 6.32 52.94 6.38 52.96 6.43 52.98 6.47 53.00 6.51 53.02 6.56 53.04 6.60 53.06 6.64 53.08 6.69 53.10 6.73 53.12 6.77 53.14 6.81 53.16 6.85 53.18 6.89 53.20 6.94 53.22 6.98 53.24 7.02 53.26 7.06 53.28 7.10 53.30 7.14 53.32 7.18 53.34 7.22 53.36 7.25 Elevation (feet) Primary (cfs) 53.38 7.29 53.40 7.33 53.42 7.37 53.44 7.41 53.46 7.45 53.48 7.49 53.50 7.52 53.52 7.56 53.54 7.60 53.56 7.63 53.58 7.67 53.60 7.71 53.62 7.75 53.64 7.78 53.66 7.82 53.68 7.85 53.70 7.89 53.72 7.93 53.74 7.96 53.76 8.00 53.78 8.03 53.80 8.07 Type III 24-hr 2-year Rainfall=3.36"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 22HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 1AR: (2) CB's in Pavement Elevation (feet) Storage (acre-feet) 51.30 0.000 51.32 0.000 51.34 0.000 51.36 0.000 51.38 0.000 51.40 0.000 51.42 0.000 51.44 0.000 51.46 0.000 51.48 0.000 51.50 0.000 51.52 0.000 51.54 0.000 51.56 0.000 51.58 0.000 51.60 0.000 51.62 0.000 51.64 0.000 51.66 0.000 51.68 0.000 51.70 0.000 51.72 0.000 51.74 0.000 51.76 0.000 51.78 0.000 51.80 0.000 51.82 0.000 51.84 0.000 51.86 0.000 51.88 0.000 51.90 0.000 51.92 0.000 51.94 0.000 51.96 0.000 51.98 0.000 52.00 0.000 52.02 0.000 52.04 0.000 52.06 0.000 52.08 0.000 52.10 0.000 52.12 0.000 52.14 0.000 52.16 0.000 52.18 0.000 52.20 0.000 52.22 0.000 52.24 0.000 52.26 0.000 52.28 0.000 52.30 0.000 52.32 0.000 Elevation (feet) Storage (acre-feet) 52.34 0.000 52.36 0.000 52.38 0.000 52.40 0.000 52.42 0.000 52.44 0.000 52.46 0.000 52.48 0.000 52.50 0.000 52.52 0.000 52.54 0.000 52.56 0.000 52.58 0.000 52.60 0.000 52.62 0.000 52.64 0.000 52.66 0.000 52.68 0.000 52.70 0.000 52.72 0.000 52.74 0.000 52.76 0.000 52.78 0.000 52.80 0.000 52.82 0.000 52.84 0.000 52.86 0.000 52.88 0.000 52.90 0.000 52.92 0.000 52.94 0.000 52.96 0.000 52.98 0.000 53.00 0.000 53.02 0.000 53.04 0.000 53.06 0.000 53.08 0.000 53.10 0.000 53.12 0.000 53.14 0.000 53.16 0.000 53.18 0.000 53.20 0.000 53.22 0.000 53.24 0.000 53.26 0.000 53.28 0.000 53.30 0.000 53.32 0.000 53.34 0.000 53.36 0.000 Elevation (feet) Storage (acre-feet) 53.38 0.000 53.40 0.000 53.42 0.000 53.44 0.000 53.46 0.000 53.48 0.000 53.50 0.000 53.52 0.000 53.54 0.000 53.56 0.000 53.58 0.000 53.60 0.000 53.62 0.000 53.64 0.000 53.66 0.000 53.68 0.000 53.70 0.000 53.72 0.000 53.74 0.000 53.76 0.000 53.78 0.000 53.80 0.000 Type III 24-hr 2-year Rainfall=3.36"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 23HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Summary for Pond 1BP: (1) 28'x14' Leaching Facility - (2) 6'x6' Leach Pits, 14' O.C. with stone around 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 Discarded = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-27.99 hrs, dt= 0.03 hrs Peak Elev= 41.50' @ 0.00 hrs Surf.Area= 392 sf Storage= 0 cf Plug-Flow detention time= (not calculated: initial storage exceeds outflow) Center-of-Mass det. time= (not calculated: no inflow) Volume Invert Avail.Storage Storage Description #1 41.50' 967 cf 14.00'W x 28.00'L x 6.50'H Prismatoid 2,548 cf Overall - 398 cf Embedded = 2,150 cf x 45.0% Voids #2 42.00' 339 cf 6.00'D x 6.00'H Vertical Cone/Cylinder x 2 Inside #1 398 cf Overall - 3.0" Wall Thickness = 339 cf 1,307 cf Total Available Storage Device Routing Invert Outlet Devices #1 Discarded 41.50'8.270 in/hr Exfiltration over Wetted area Phase-In= 0.01' Discarded OutFlow Max=0.00 cfs @ 0.00 hrs HW=41.50' (Free Discharge) 1=Exfiltration ( Controls 0.00 cfs) Pond 1BP: (1) 28'x14' Leaching Facility - (2) 6'x6' Leach Pits, 14' O.C. with stone around Inflow Discarded Hydrograph Time (hours) 26242220181614121086420Flow (cfs)1 0 Peak Elev=41.50' Storage=0 cf 0.00 cfs 0.00 cfs Type III 24-hr 2-year Rainfall=3.36"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 24HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Pond 1BP: (1) 28'x14' Leaching Facility - (2) 6'x6' Leach Pits, 14' O.C. with stone around Discarded Stage-Discharge Discharge (cfs) 0.170.160.150.140.130.120.110.10.090.080.070.060.050.040.030.020.010Elevation (feet)48 47 46 45 44 43 42 Exfiltration Pond 1BP: (1) 28'x14' Leaching Facility - (2) 6'x6' Leach Pits, 14' O.C. with stone around Wetted Storage Stage-Area-Storage Storage (cubic-feet) 1,2001,0008006004002000 Surface/Horizontal/Wetted Area (sq-ft) 900850800750700650600550500450400350300250200150100500 Elevation (feet)48 47 46 45 44 43 42 Prismatoid Vertical Cone/Cylinder Type III 24-hr 2-year Rainfall=3.36"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 25HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Hydrograph for Pond 1BP: (1) 28'x14' Leaching Facility - (2) 6'x6' Leach Pits, 14' O.C. with stone around Time (hours) Inflow (cfs) Elevation (feet) Discarded (cfs) 0.00 0.00 41.50 0.00 0.30 0.00 41.50 0.00 0.60 0.00 41.50 0.00 0.90 0.00 41.50 0.00 1.20 0.00 41.50 0.00 1.50 0.00 41.50 0.00 1.80 0.00 41.50 0.00 2.10 0.00 41.50 0.00 2.40 0.00 41.50 0.00 2.70 0.00 41.50 0.00 3.00 0.00 41.50 0.00 3.30 0.00 41.50 0.00 3.60 0.00 41.50 0.00 3.90 0.00 41.50 0.00 4.20 0.00 41.50 0.00 4.50 0.00 41.50 0.00 4.80 0.00 41.50 0.00 5.10 0.00 41.50 0.00 5.40 0.00 41.50 0.00 5.70 0.00 41.50 0.00 6.00 0.00 41.50 0.00 6.30 0.00 41.50 0.00 6.60 0.00 41.50 0.00 6.90 0.00 41.50 0.00 7.20 0.00 41.50 0.00 7.50 0.00 41.50 0.00 7.80 0.00 41.50 0.00 8.10 0.00 41.50 0.00 8.40 0.00 41.50 0.00 8.70 0.00 41.50 0.00 9.00 0.00 41.50 0.00 9.30 0.00 41.50 0.00 9.60 0.00 41.50 0.00 9.90 0.00 41.50 0.00 10.20 0.00 41.50 0.00 10.50 0.00 41.50 0.00 10.80 0.00 41.50 0.00 11.10 0.00 41.50 0.00 11.40 0.00 41.50 0.00 11.70 0.00 41.50 0.00 12.00 0.00 41.50 0.00 12.30 0.00 41.50 0.00 12.60 0.00 41.50 0.00 12.90 0.00 41.50 0.00 13.20 0.00 41.50 0.00 13.50 0.00 41.50 0.00 13.80 0.00 41.50 0.00 14.10 0.00 41.50 0.00 14.40 0.00 41.50 0.00 14.70 0.00 41.50 0.00 15.00 0.00 41.50 0.00 15.30 0.00 41.50 0.00 Time (hours) Inflow (cfs) Elevation (feet) Discarded (cfs) 15.60 0.00 41.50 0.00 15.90 0.00 41.50 0.00 16.20 0.00 41.50 0.00 16.50 0.00 41.50 0.00 16.80 0.00 41.50 0.00 17.10 0.00 41.50 0.00 17.40 0.00 41.50 0.00 17.70 0.00 41.50 0.00 18.00 0.00 41.50 0.00 18.30 0.00 41.50 0.00 18.60 0.00 41.50 0.00 18.90 0.00 41.50 0.00 19.20 0.00 41.50 0.00 19.50 0.00 41.50 0.00 19.80 0.00 41.50 0.00 20.10 0.00 41.50 0.00 20.40 0.00 41.50 0.00 20.70 0.00 41.50 0.00 21.00 0.00 41.50 0.00 21.30 0.00 41.50 0.00 21.60 0.00 41.50 0.00 21.90 0.00 41.50 0.00 22.20 0.00 41.50 0.00 22.50 0.00 41.50 0.00 22.80 0.00 41.50 0.00 23.10 0.00 41.50 0.00 23.40 0.00 41.50 0.00 23.70 0.00 41.50 0.00 24.00 0.00 41.50 0.00 24.30 0.00 41.50 0.00 24.60 0.00 41.50 0.00 24.90 0.00 41.50 0.00 25.20 0.00 41.50 0.00 25.50 0.00 41.50 0.00 25.80 0.00 41.50 0.00 26.10 0.00 41.50 0.00 26.40 0.00 41.50 0.00 26.70 0.00 41.50 0.00 27.00 0.00 41.50 0.00 27.30 0.00 41.50 0.00 27.60 0.00 41.50 0.00 27.90 0.00 41.50 0.00 Type III 24-hr 2-year Rainfall=3.36"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 26HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Stage-Discharge for Pond 1BP: (1) 28'x14' Leaching Facility - (2) 6'x6' Leach Pits, 14' O.C. with stone around Elevation (feet) Discarded (cfs) 41.50 0.00 41.55 0.08 41.60 0.08 41.65 0.08 41.70 0.08 41.75 0.08 41.80 0.08 41.85 0.08 41.90 0.08 41.95 0.08 42.00 0.08 42.05 0.08 42.10 0.08 42.15 0.09 42.20 0.09 42.25 0.09 42.30 0.09 42.35 0.09 42.40 0.09 42.45 0.09 42.50 0.09 42.55 0.09 42.60 0.09 42.65 0.09 42.70 0.09 42.75 0.10 42.80 0.10 42.85 0.10 42.90 0.10 42.95 0.10 43.00 0.10 43.05 0.10 43.10 0.10 43.15 0.10 43.20 0.10 43.25 0.10 43.30 0.10 43.35 0.10 43.40 0.11 43.45 0.11 43.50 0.11 43.55 0.11 43.60 0.11 43.65 0.11 43.70 0.11 43.75 0.11 43.80 0.11 43.85 0.11 43.90 0.11 43.95 0.11 44.00 0.12 44.05 0.12 Elevation (feet) Discarded (cfs) 44.10 0.12 44.15 0.12 44.20 0.12 44.25 0.12 44.30 0.12 44.35 0.12 44.40 0.12 44.45 0.12 44.50 0.12 44.55 0.12 44.60 0.12 44.65 0.13 44.70 0.13 44.75 0.13 44.80 0.13 44.85 0.13 44.90 0.13 44.95 0.13 45.00 0.13 45.05 0.13 45.10 0.13 45.15 0.13 45.20 0.13 45.25 0.14 45.30 0.14 45.35 0.14 45.40 0.14 45.45 0.14 45.50 0.14 45.55 0.14 45.60 0.14 45.65 0.14 45.70 0.14 45.75 0.14 45.80 0.14 45.85 0.14 45.90 0.15 45.95 0.15 46.00 0.15 46.05 0.15 46.10 0.15 46.15 0.15 46.20 0.15 46.25 0.15 46.30 0.15 46.35 0.15 46.40 0.15 46.45 0.15 46.50 0.16 46.55 0.16 46.60 0.16 46.65 0.16 Elevation (feet) Discarded (cfs) 46.70 0.16 46.75 0.16 46.80 0.16 46.85 0.16 46.90 0.16 46.95 0.16 47.00 0.16 47.05 0.16 47.10 0.17 47.15 0.17 47.20 0.17 47.25 0.17 47.30 0.17 47.35 0.17 47.40 0.17 47.45 0.17 47.50 0.17 47.55 0.17 47.60 0.17 47.65 0.17 47.70 0.17 47.75 0.18 47.80 0.18 47.85 0.18 47.90 0.18 47.95 0.18 48.00 0.18 Type III 24-hr 2-year Rainfall=3.36"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 27HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 1BP: (1) 28'x14' Leaching Facility - (2) 6'x6' Leach Pits, 14' O.C. with stone around Elevation (feet) Wetted (sq-ft) Storage (cubic-feet) 41.50 392 0 41.60 400 18 41.70 409 35 41.80 417 53 41.90 426 71 42.00 434 88 42.10 442 109 42.20 451 129 42.30 459 149 42.40 468 169 42.50 476 190 42.60 484 210 42.70 493 230 42.80 501 251 42.90 510 271 43.00 518 291 43.10 526 312 43.20 535 332 43.30 543 352 43.40 552 373 43.50 560 393 43.60 568 413 43.70 577 433 43.80 585 454 43.90 594 474 44.00 602 494 44.10 610 515 44.20 619 535 44.30 627 555 44.40 636 576 44.50 644 596 44.60 652 616 44.70 661 637 44.80 669 657 44.90 678 677 45.00 686 697 45.10 694 718 45.20 703 738 45.30 711 758 45.40 720 779 45.50 728 799 45.60 736 819 45.70 745 840 45.80 753 860 45.90 762 880 46.00 770 901 46.10 778 921 46.20 787 941 46.30 795 961 46.40 804 982 46.50 812 1,002 46.60 820 1,022 Elevation (feet) Wetted (sq-ft) Storage (cubic-feet) 46.70 829 1,043 46.80 837 1,063 46.90 846 1,083 47.00 854 1,104 47.10 862 1,124 47.20 871 1,144 47.30 879 1,165 47.40 888 1,185 47.50 896 1,205 47.60 904 1,225 47.70 913 1,246 47.80 921 1,266 47.90 930 1,286 48.00 938 1,307 Type III 24-hr 2-year Rainfall=3.36"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 28HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Summary for Pond 2AP: Grassed Swale Leaching - M2 Inflow Area = 4.079 ac, 21.23% Impervious, Inflow Depth = 0.20" for 2-year event Inflow = 0.32 cfs @ 12.35 hrs, Volume= 0.067 af Outflow = 0.16 cfs @ 12.67 hrs, Volume= 0.067 af, Atten= 49%, Lag= 19.1 min Discarded = 0.16 cfs @ 12.67 hrs, Volume= 0.067 af Secondary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routed to Pond 2BP : (1) 70'x28' Leaching Facility - Two Rows of (5) 6'x6' Leach Pits, 14' O.C. with stone around Routing by Dyn-Stor-Ind method, Time Span= 0.00-27.99 hrs, dt= 0.03 hrs Peak Elev= 33.07' @ 12.67 hrs Surf.Area= 2,921 sf Storage= 203 cf Plug-Flow detention time= 6.7 min calculated for 0.067 af (100% of inflow) Center-of-Mass det. time= 6.7 min ( 969.5 - 962.8 ) Volume Invert Avail.Storage Storage Description #1 33.00' 6,696 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) 33.00 2,890 222.0 0 0 2,890 35.00 3,828 247.0 6,696 6,696 3,934 Device Routing Invert Outlet Devices #1 Discarded 33.00'2.410 in/hr Exfiltration over Wetted area Phase-In= 0.01' #2 Secondary 34.50'24.0" x 24.0" Horiz. Orifice/Grate C= 0.600 Limited to weir flow at low heads Discarded OutFlow Max=0.16 cfs @ 12.67 hrs HW=33.07' (Free Discharge) 1=Exfiltration (Exfiltration Controls 0.16 cfs) Secondary OutFlow Max=0.00 cfs @ 0.00 hrs HW=33.00' TW=26.00' (Dynamic Tailwater) 2=Orifice/Grate ( Controls 0.00 cfs) Type III 24-hr 2-year Rainfall=3.36"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 29HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Pond 2AP: Grassed Swale Leaching - M2 Inflow Outflow Discarded Secondary 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=4.079 ac Peak Elev=33.07' Storage=203 cf 0.32 cfs 0.16 cfs 0.16 cfs 0.00 cfs Pond 2AP: Grassed Swale Leaching - M2 Total Discarded Secondary Stage-Discharge Discharge (cfs) 9876543210Elevation (feet)35 34 33 Exfiltration Orifice/Grate Type III 24-hr 2-year Rainfall=3.36"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 30HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Pond 2AP: Grassed Swale Leaching - M2 Surface Wetted Storage Stage-Area-Storage Storage (cubic-feet) 6,0005,0004,0003,0002,0001,0000 Surface/Horizontal/Wetted Area (sq-ft) 3,5003,0002,5002,0001,5001,0005000 Elevation (feet)35 34 33 Grassed Swale Type III 24-hr 2-year Rainfall=3.36"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 31HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Hydrograph for Pond 2AP: Grassed Swale Leaching - M2 Time (hours) Inflow (cfs) Storage (cubic-feet) Elevation (feet) Outflow (cfs) Discarded (cfs) Secondary (cfs) 0.00 0.00 0 33.00 0.00 0.00 0.00 0.60 0.00 0 33.00 0.00 0.00 0.00 1.20 0.00 0 33.00 0.00 0.00 0.00 1.80 0.00 0 33.00 0.00 0.00 0.00 2.40 0.00 0 33.00 0.00 0.00 0.00 3.00 0.00 0 33.00 0.00 0.00 0.00 3.60 0.00 0 33.00 0.00 0.00 0.00 4.20 0.00 0 33.00 0.00 0.00 0.00 4.80 0.00 0 33.00 0.00 0.00 0.00 5.40 0.00 0 33.00 0.00 0.00 0.00 6.00 0.00 0 33.00 0.00 0.00 0.00 6.60 0.00 0 33.00 0.00 0.00 0.00 7.20 0.00 0 33.00 0.00 0.00 0.00 7.80 0.00 0 33.00 0.00 0.00 0.00 8.40 0.00 0 33.00 0.00 0.00 0.00 9.00 0.00 0 33.00 0.00 0.00 0.00 9.60 0.00 0 33.00 0.00 0.00 0.00 10.20 0.00 0 33.00 0.00 0.00 0.00 10.80 0.00 0 33.00 0.00 0.00 0.00 11.40 0.00 0 33.00 0.00 0.00 0.00 12.00 0.00 0 33.00 0.00 0.00 0.00 12.60 0.18 201 33.07 0.16 0.16 0.00 13.20 0.12 154 33.05 0.16 0.16 0.00 13.80 0.11 46 33.02 0.16 0.16 0.00 14.40 0.09 17 33.01 0.09 0.09 0.00 15.00 0.09 16 33.01 0.09 0.09 0.00 15.60 0.08 14 33.00 0.08 0.08 0.00 16.20 0.06 12 33.00 0.06 0.06 0.00 16.80 0.06 11 33.00 0.06 0.06 0.00 17.40 0.05 9 33.00 0.05 0.05 0.00 18.00 0.05 8 33.00 0.05 0.05 0.00 18.60 0.04 8 33.00 0.04 0.04 0.00 19.20 0.04 7 33.00 0.04 0.04 0.00 19.80 0.04 7 33.00 0.04 0.04 0.00 20.40 0.04 7 33.00 0.04 0.04 0.00 21.00 0.04 7 33.00 0.04 0.04 0.00 21.60 0.03 6 33.00 0.03 0.03 0.00 22.20 0.03 6 33.00 0.03 0.03 0.00 22.80 0.03 6 33.00 0.03 0.03 0.00 23.40 0.03 5 33.00 0.03 0.03 0.00 24.00 0.03 5 33.00 0.03 0.03 0.00 24.60 0.00 0 33.00 0.00 0.00 0.00 25.20 0.00 0 33.00 0.00 0.00 0.00 25.80 0.00 0 33.00 0.00 0.00 0.00 26.40 0.00 0 33.00 0.00 0.00 0.00 27.00 0.00 0 33.00 0.00 0.00 0.00 27.60 0.00 0 33.00 0.00 0.00 0.00 Type III 24-hr 2-year Rainfall=3.36"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 32HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Stage-Discharge for Pond 2AP: Grassed Swale Leaching - M2 Elevation (feet) Discharge (cfs) Discarded (cfs) Secondary (cfs) 33.00 0.00 0.00 0.00 33.02 0.16 0.16 0.00 33.04 0.16 0.16 0.00 33.06 0.16 0.16 0.00 33.08 0.16 0.16 0.00 33.10 0.16 0.16 0.00 33.12 0.16 0.16 0.00 33.14 0.17 0.17 0.00 33.16 0.17 0.17 0.00 33.18 0.17 0.17 0.00 33.20 0.17 0.17 0.00 33.22 0.17 0.17 0.00 33.24 0.17 0.17 0.00 33.26 0.17 0.17 0.00 33.28 0.17 0.17 0.00 33.30 0.17 0.17 0.00 33.32 0.17 0.17 0.00 33.34 0.17 0.17 0.00 33.36 0.17 0.17 0.00 33.38 0.17 0.17 0.00 33.40 0.17 0.17 0.00 33.42 0.17 0.17 0.00 33.44 0.17 0.17 0.00 33.46 0.17 0.17 0.00 33.48 0.17 0.17 0.00 33.50 0.18 0.18 0.00 33.52 0.18 0.18 0.00 33.54 0.18 0.18 0.00 33.56 0.18 0.18 0.00 33.58 0.18 0.18 0.00 33.60 0.18 0.18 0.00 33.62 0.18 0.18 0.00 33.64 0.18 0.18 0.00 33.66 0.18 0.18 0.00 33.68 0.18 0.18 0.00 33.70 0.18 0.18 0.00 33.72 0.18 0.18 0.00 33.74 0.18 0.18 0.00 33.76 0.18 0.18 0.00 33.78 0.18 0.18 0.00 33.80 0.18 0.18 0.00 33.82 0.18 0.18 0.00 33.84 0.18 0.18 0.00 33.86 0.19 0.19 0.00 33.88 0.19 0.19 0.00 33.90 0.19 0.19 0.00 33.92 0.19 0.19 0.00 33.94 0.19 0.19 0.00 33.96 0.19 0.19 0.00 33.98 0.19 0.19 0.00 34.00 0.19 0.19 0.00 34.02 0.19 0.19 0.00 Elevation (feet) Discharge (cfs) Discarded (cfs) Secondary (cfs) 34.04 0.19 0.19 0.00 34.06 0.19 0.19 0.00 34.08 0.19 0.19 0.00 34.10 0.19 0.19 0.00 34.12 0.19 0.19 0.00 34.14 0.19 0.19 0.00 34.16 0.19 0.19 0.00 34.18 0.19 0.19 0.00 34.20 0.20 0.20 0.00 34.22 0.20 0.20 0.00 34.24 0.20 0.20 0.00 34.26 0.20 0.20 0.00 34.28 0.20 0.20 0.00 34.30 0.20 0.20 0.00 34.32 0.20 0.20 0.00 34.34 0.20 0.20 0.00 34.36 0.20 0.20 0.00 34.38 0.20 0.20 0.00 34.40 0.20 0.20 0.00 34.42 0.20 0.20 0.00 34.44 0.20 0.20 0.00 34.46 0.20 0.20 0.00 34.48 0.20 0.20 0.00 34.50 0.20 0.20 0.00 34.52 0.28 0.20 0.07 34.54 0.41 0.21 0.21 34.56 0.59 0.21 0.38 34.58 0.80 0.21 0.59 34.60 1.03 0.21 0.83 34.62 1.30 0.21 1.09 34.64 1.58 0.21 1.37 34.66 1.88 0.21 1.67 34.68 2.21 0.21 2.00 34.70 2.55 0.21 2.34 34.72 2.91 0.21 2.70 34.74 3.29 0.21 3.08 34.76 3.68 0.21 3.47 34.78 4.09 0.21 3.88 34.80 4.51 0.21 4.30 34.82 4.95 0.21 4.74 34.84 5.40 0.21 5.19 34.86 5.87 0.22 5.65 34.88 6.34 0.22 6.13 34.90 6.83 0.22 6.62 34.92 7.34 0.22 7.12 34.94 7.85 0.22 7.64 34.96 8.38 0.22 8.16 34.98 8.92 0.22 8.70 35.00 9.47 0.22 9.25 Type III 24-hr 2-year Rainfall=3.36"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 33HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 2AP: Grassed Swale Leaching - M2 Elevation (feet) Surface (sq-ft) Wetted (sq-ft) Storage (cubic-feet) 33.00 2,890 2,890 0 33.05 2,912 2,915 145 33.10 2,934 2,940 291 33.15 2,956 2,964 438 33.20 2,978 2,989 587 33.25 3,000 3,014 736 33.30 3,022 3,040 887 33.35 3,045 3,065 1,038 33.40 3,067 3,090 1,191 33.45 3,090 3,115 1,345 33.50 3,112 3,141 1,500 33.55 3,135 3,166 1,656 33.60 3,158 3,192 1,814 33.65 3,180 3,217 1,972 33.70 3,203 3,243 2,132 33.75 3,226 3,269 2,292 33.80 3,249 3,294 2,454 33.85 3,273 3,320 2,617 33.90 3,296 3,346 2,782 33.95 3,319 3,372 2,947 34.00 3,343 3,398 3,114 34.05 3,366 3,424 3,281 34.10 3,390 3,451 3,450 34.15 3,413 3,477 3,620 34.20 3,437 3,503 3,791 34.25 3,461 3,530 3,964 34.30 3,485 3,556 4,138 34.35 3,509 3,583 4,312 34.40 3,533 3,609 4,488 34.45 3,557 3,636 4,666 34.50 3,581 3,663 4,844 34.55 3,605 3,690 5,024 34.60 3,630 3,717 5,205 34.65 3,654 3,744 5,387 34.70 3,679 3,771 5,570 34.75 3,704 3,798 5,755 34.80 3,728 3,825 5,940 34.85 3,753 3,852 6,127 34.90 3,778 3,879 6,316 34.95 3,803 3,907 6,505 35.00 3,828 3,934 6,696 Type III 24-hr 2-year Rainfall=3.36"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 34HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Summary for Pond 2AR: (7) CB's in Pavement Inflow Area = 2.859 ac, 27.01% Impervious, Inflow Depth = 0.27" for 2-year event Inflow = 0.32 cfs @ 12.35 hrs, Volume= 0.064 af Outflow = 0.32 cfs @ 12.35 hrs, Volume= 0.064 af, Atten= 0%, Lag= 0.0 min Primary = 0.32 cfs @ 12.35 hrs, Volume= 0.064 af Routed to Pond 2AP : Grassed Swale Leaching - M2 Routing by Dyn-Stor-Ind method, Time Span= 0.00-27.99 hrs, dt= 0.03 hrs Peak Elev= 35.82' @ 12.35 hrs Flood Elev= 38.20' Device Routing Invert Outlet Devices #1 Primary 35.70'12.0" Round Culvert X 7.00 L= 50.0' CPP, projecting, no headwall, Ke= 0.900 Inlet / Outlet Invert= 35.70' / 35.00' S= 0.0140 '/' Cc= 0.900 n= 0.020 Corrugated PE, corrugated interior, Flow Area= 0.79 sf Primary OutFlow Max=0.32 cfs @ 12.35 hrs HW=35.82' TW=33.04' (Dynamic Tailwater) 1=Culvert (Barrel Controls 0.32 cfs @ 1.29 fps) Pond 2AR: (7) CB's in Pavement Inflow 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=2.859 ac Peak Elev=35.82' 12.0" Round Culvert x 7.00 n=0.020 L=50.0' S=0.0140 '/' 0.32 cfs 0.32 cfs Type III 24-hr 2-year Rainfall=3.36"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 35HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Pond 2AR: (7) CB's in Pavement Primary Stage-Discharge Discharge (cfs) 26242220181614121086420Elevation (feet)38 37 36 Culvert Pond 2AR: (7) CB's in Pavement Storage Stage-Area-Storage Storage (acre-feet) 0Elevation (feet)38 37 36 Flood Elevation Type III 24-hr 2-year Rainfall=3.36"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 36HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Hydrograph for Pond 2AR: (7) CB's in Pavement Time (hours) Inflow (cfs) Elevation (feet) Primary (cfs) 0.00 0.00 35.70 0.00 0.30 0.00 35.70 0.00 0.60 0.00 35.70 0.00 0.90 0.00 35.70 0.00 1.20 0.00 35.70 0.00 1.50 0.00 35.70 0.00 1.80 0.00 35.70 0.00 2.10 0.00 35.70 0.00 2.40 0.00 35.70 0.00 2.70 0.00 35.70 0.00 3.00 0.00 35.70 0.00 3.30 0.00 35.70 0.00 3.60 0.00 35.70 0.00 3.90 0.00 35.70 0.00 4.20 0.00 35.70 0.00 4.50 0.00 35.70 0.00 4.80 0.00 35.70 0.00 5.10 0.00 35.70 0.00 5.40 0.00 35.70 0.00 5.70 0.00 35.70 0.00 6.00 0.00 35.70 0.00 6.30 0.00 35.70 0.00 6.60 0.00 35.70 0.00 6.90 0.00 35.70 0.00 7.20 0.00 35.70 0.00 7.50 0.00 35.70 0.00 7.80 0.00 35.70 0.00 8.10 0.00 35.70 0.00 8.40 0.00 35.70 0.00 8.70 0.00 35.70 0.00 9.00 0.00 35.70 0.00 9.30 0.00 35.70 0.00 9.60 0.00 35.70 0.00 9.90 0.00 35.70 0.00 10.20 0.00 35.70 0.00 10.50 0.00 35.70 0.00 10.80 0.00 35.70 0.00 11.10 0.00 35.70 0.00 11.40 0.00 35.70 0.00 11.70 0.00 35.70 0.00 12.00 0.00 35.70 0.00 12.30 0.31 35.82 0.31 12.60 0.18 35.79 0.18 12.90 0.14 35.78 0.14 13.20 0.12 35.78 0.12 13.50 0.11 35.77 0.11 13.80 0.11 35.77 0.11 14.10 0.10 35.77 0.10 14.40 0.09 35.77 0.09 14.70 0.09 35.77 0.09 15.00 0.08 35.76 0.08 15.30 0.08 35.76 0.08 Time (hours) Inflow (cfs) Elevation (feet) Primary (cfs) 15.60 0.07 35.76 0.07 15.90 0.07 35.76 0.07 16.20 0.06 35.75 0.06 16.50 0.06 35.75 0.06 16.80 0.06 35.75 0.06 17.10 0.05 35.75 0.05 17.40 0.05 35.75 0.05 17.70 0.05 35.75 0.05 18.00 0.04 35.75 0.04 18.30 0.04 35.75 0.04 18.60 0.04 35.75 0.04 18.90 0.04 35.74 0.04 19.20 0.04 35.74 0.04 19.50 0.04 35.74 0.04 19.80 0.04 35.74 0.04 20.10 0.04 35.74 0.04 20.40 0.03 35.74 0.03 20.70 0.03 35.74 0.03 21.00 0.03 35.74 0.03 21.30 0.03 35.74 0.03 21.60 0.03 35.74 0.03 21.90 0.03 35.74 0.03 22.20 0.03 35.74 0.03 22.50 0.03 35.74 0.03 22.80 0.03 35.74 0.03 23.10 0.03 35.74 0.03 23.40 0.03 35.74 0.03 23.70 0.03 35.74 0.03 24.00 0.02 35.74 0.02 24.30 0.00 35.70 0.00 24.60 0.00 35.70 0.00 24.90 0.00 35.70 0.00 25.20 0.00 35.70 0.00 25.50 0.00 35.70 0.00 25.80 0.00 35.70 0.00 26.10 0.00 35.70 0.00 26.40 0.00 35.70 0.00 26.70 0.00 35.70 0.00 27.00 0.00 35.70 0.00 27.30 0.00 35.70 0.00 27.60 0.00 35.70 0.00 27.90 0.00 35.70 0.00 Type III 24-hr 2-year Rainfall=3.36"8807.Recharge(10.19.22) 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-Discharge for Pond 2AR: (7) CB's in Pavement Elevation (feet) Primary (cfs) 35.70 0.00 35.72 0.01 35.74 0.03 35.76 0.07 35.78 0.13 35.80 0.22 35.82 0.32 35.84 0.44 35.86 0.57 35.88 0.73 35.90 0.90 35.92 1.10 35.94 1.30 35.96 1.53 35.98 1.77 36.00 2.02 36.02 2.29 36.04 2.58 36.06 2.87 36.08 3.18 36.10 3.49 36.12 3.82 36.14 4.15 36.16 4.50 36.18 4.86 36.20 5.22 36.22 5.60 36.24 5.98 36.26 6.37 36.28 6.77 36.30 7.17 36.32 7.58 36.34 7.99 36.36 8.41 36.38 8.82 36.40 9.24 36.42 9.67 36.44 10.09 36.46 10.51 36.48 10.92 36.50 11.34 36.52 11.74 36.54 12.15 36.56 12.54 36.58 12.92 36.60 13.29 36.62 13.64 36.64 13.98 36.66 14.28 36.68 14.56 36.70 14.78 36.72 15.07 Elevation (feet) Primary (cfs) 36.74 15.36 36.76 15.64 36.78 15.92 36.80 16.19 36.82 16.46 36.84 16.72 36.86 16.98 36.88 17.23 36.90 17.49 36.92 17.73 36.94 17.98 36.96 18.22 36.98 18.46 37.00 18.69 37.02 18.92 37.04 18.99 37.06 19.17 37.08 19.35 37.10 19.53 37.12 19.70 37.14 19.88 37.16 20.05 37.18 20.22 37.20 20.39 37.22 20.56 37.24 20.73 37.26 20.90 37.28 21.06 37.30 21.23 37.32 21.39 37.34 21.55 37.36 21.71 37.38 21.87 37.40 22.03 37.42 22.19 37.44 22.34 37.46 22.50 37.48 22.65 37.50 22.80 37.52 22.95 37.54 23.10 37.56 23.25 37.58 23.40 37.60 23.55 37.62 23.70 37.64 23.84 37.66 23.99 37.68 24.13 37.70 24.27 37.72 24.42 37.74 24.56 37.76 24.70 Elevation (feet) Primary (cfs) 37.78 24.84 37.80 24.98 37.82 25.12 37.84 25.25 37.86 25.39 37.88 25.53 37.90 25.66 37.92 25.80 37.94 25.93 37.96 26.06 37.98 26.20 38.00 26.33 38.02 26.46 38.04 26.59 38.06 26.72 38.08 26.85 38.10 26.98 38.12 27.11 38.14 27.24 38.16 27.36 38.18 27.49 38.20 27.61 Type III 24-hr 2-year Rainfall=3.36"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 38HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 2AR: (7) CB's in Pavement Elevation (feet) Storage (acre-feet) 35.70 0.000 35.72 0.000 35.74 0.000 35.76 0.000 35.78 0.000 35.80 0.000 35.82 0.000 35.84 0.000 35.86 0.000 35.88 0.000 35.90 0.000 35.92 0.000 35.94 0.000 35.96 0.000 35.98 0.000 36.00 0.000 36.02 0.000 36.04 0.000 36.06 0.000 36.08 0.000 36.10 0.000 36.12 0.000 36.14 0.000 36.16 0.000 36.18 0.000 36.20 0.000 36.22 0.000 36.24 0.000 36.26 0.000 36.28 0.000 36.30 0.000 36.32 0.000 36.34 0.000 36.36 0.000 36.38 0.000 36.40 0.000 36.42 0.000 36.44 0.000 36.46 0.000 36.48 0.000 36.50 0.000 36.52 0.000 36.54 0.000 36.56 0.000 36.58 0.000 36.60 0.000 36.62 0.000 36.64 0.000 36.66 0.000 36.68 0.000 36.70 0.000 36.72 0.000 Elevation (feet) Storage (acre-feet) 36.74 0.000 36.76 0.000 36.78 0.000 36.80 0.000 36.82 0.000 36.84 0.000 36.86 0.000 36.88 0.000 36.90 0.000 36.92 0.000 36.94 0.000 36.96 0.000 36.98 0.000 37.00 0.000 37.02 0.000 37.04 0.000 37.06 0.000 37.08 0.000 37.10 0.000 37.12 0.000 37.14 0.000 37.16 0.000 37.18 0.000 37.20 0.000 37.22 0.000 37.24 0.000 37.26 0.000 37.28 0.000 37.30 0.000 37.32 0.000 37.34 0.000 37.36 0.000 37.38 0.000 37.40 0.000 37.42 0.000 37.44 0.000 37.46 0.000 37.48 0.000 37.50 0.000 37.52 0.000 37.54 0.000 37.56 0.000 37.58 0.000 37.60 0.000 37.62 0.000 37.64 0.000 37.66 0.000 37.68 0.000 37.70 0.000 37.72 0.000 37.74 0.000 37.76 0.000 Elevation (feet) Storage (acre-feet) 37.78 0.000 37.80 0.000 37.82 0.000 37.84 0.000 37.86 0.000 37.88 0.000 37.90 0.000 37.92 0.000 37.94 0.000 37.96 0.000 37.98 0.000 38.00 0.000 38.02 0.000 38.04 0.000 38.06 0.000 38.08 0.000 38.10 0.000 38.12 0.000 38.14 0.000 38.16 0.000 38.18 0.000 38.20 0.000 Type III 24-hr 2-year Rainfall=3.36"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 39HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Summary for Pond 2BP: (1) 70'x28' Leaching Facility - Two Rows of (5) 6'x6' Leach Pits, 14' O.C. with stone around 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 Discarded = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-27.99 hrs, dt= 0.03 hrs Peak Elev= 26.00' @ 0.00 hrs Surf.Area= 1,960 sf Storage= 0 cf Plug-Flow detention time= (not calculated: initial storage exceeds outflow) Center-of-Mass det. time= (not calculated: no inflow) Volume Invert Avail.Storage Storage Description #1 26.00' 4,837 cf 28.00'W x 70.00'L x 6.50'H Prismatoid 12,740 cf Overall - 1,991 cf Embedded = 10,749 cf x 45.0% Voids #2 26.50' 1,696 cf 6.00'D x 6.00'H Vertical Cone/Cylinder x 10 Inside #1 1,991 cf Overall - 3.0" Wall Thickness = 1,696 cf 6,534 cf Total Available Storage Device Routing Invert Outlet Devices #1 Discarded 26.00'8.270 in/hr Exfiltration over Wetted area Phase-In= 0.01' Discarded OutFlow Max=0.00 cfs @ 0.00 hrs HW=26.00' (Free Discharge) 1=Exfiltration ( Controls 0.00 cfs) Pond 2BP: (1) 70'x28' Leaching Facility - Two Rows of (5) 6'x6' Leach Pits, 14' O.C. with stone around Inflow Discarded Hydrograph Time (hours) 26242220181614121086420Flow (cfs)1 0 Peak Elev=26.00' Storage=0 cf 0.00 cfs 0.00 cfs Type III 24-hr 2-year Rainfall=3.36"8807.Recharge(10.19.22) 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 2BP: (1) 70'x28' Leaching Facility - Two Rows of (5) 6'x6' Leach Pits, 14' O.C. with stone around Discarded Stage-Discharge Discharge (cfs) 0.60.550.50.450.40.350.30.250.20.150.10.050Elevation (feet)32 31 30 29 28 27 26 Exfiltration Pond 2BP: (1) 70'x28' Leaching Facility - Two Rows of (5) 6'x6' Leach Pits, 14' O.C. with stone around Wetted Storage Stage-Area-Storage Storage (cubic-feet) 6,0005,0004,0003,0002,0001,0000 Surface/Horizontal/Wetted Area (sq-ft) 3,2003,0002,8002,6002,4002,2002,0001,8001,6001,4001,2001,0008006004002000 Elevation (feet)32 31 30 29 28 27 26 Prismatoid Vertical Cone/Cylinder Type III 24-hr 2-year Rainfall=3.36"8807.Recharge(10.19.22) 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 2BP: (1) 70'x28' Leaching Facility - Two Rows of (5) 6'x6' Leach Pits, 14' O.C. with stone around Time (hours) Inflow (cfs) Elevation (feet) Discarded (cfs) 0.00 0.00 26.00 0.00 0.30 0.00 26.00 0.00 0.60 0.00 26.00 0.00 0.90 0.00 26.00 0.00 1.20 0.00 26.00 0.00 1.50 0.00 26.00 0.00 1.80 0.00 26.00 0.00 2.10 0.00 26.00 0.00 2.40 0.00 26.00 0.00 2.70 0.00 26.00 0.00 3.00 0.00 26.00 0.00 3.30 0.00 26.00 0.00 3.60 0.00 26.00 0.00 3.90 0.00 26.00 0.00 4.20 0.00 26.00 0.00 4.50 0.00 26.00 0.00 4.80 0.00 26.00 0.00 5.10 0.00 26.00 0.00 5.40 0.00 26.00 0.00 5.70 0.00 26.00 0.00 6.00 0.00 26.00 0.00 6.30 0.00 26.00 0.00 6.60 0.00 26.00 0.00 6.90 0.00 26.00 0.00 7.20 0.00 26.00 0.00 7.50 0.00 26.00 0.00 7.80 0.00 26.00 0.00 8.10 0.00 26.00 0.00 8.40 0.00 26.00 0.00 8.70 0.00 26.00 0.00 9.00 0.00 26.00 0.00 9.30 0.00 26.00 0.00 9.60 0.00 26.00 0.00 9.90 0.00 26.00 0.00 10.20 0.00 26.00 0.00 10.50 0.00 26.00 0.00 10.80 0.00 26.00 0.00 11.10 0.00 26.00 0.00 11.40 0.00 26.00 0.00 11.70 0.00 26.00 0.00 12.00 0.00 26.00 0.00 12.30 0.00 26.00 0.00 12.60 0.00 26.00 0.00 12.90 0.00 26.00 0.00 13.20 0.00 26.00 0.00 13.50 0.00 26.00 0.00 13.80 0.00 26.00 0.00 14.10 0.00 26.00 0.00 14.40 0.00 26.00 0.00 14.70 0.00 26.00 0.00 15.00 0.00 26.00 0.00 15.30 0.00 26.00 0.00 Time (hours) Inflow (cfs) Elevation (feet) Discarded (cfs) 15.60 0.00 26.00 0.00 15.90 0.00 26.00 0.00 16.20 0.00 26.00 0.00 16.50 0.00 26.00 0.00 16.80 0.00 26.00 0.00 17.10 0.00 26.00 0.00 17.40 0.00 26.00 0.00 17.70 0.00 26.00 0.00 18.00 0.00 26.00 0.00 18.30 0.00 26.00 0.00 18.60 0.00 26.00 0.00 18.90 0.00 26.00 0.00 19.20 0.00 26.00 0.00 19.50 0.00 26.00 0.00 19.80 0.00 26.00 0.00 20.10 0.00 26.00 0.00 20.40 0.00 26.00 0.00 20.70 0.00 26.00 0.00 21.00 0.00 26.00 0.00 21.30 0.00 26.00 0.00 21.60 0.00 26.00 0.00 21.90 0.00 26.00 0.00 22.20 0.00 26.00 0.00 22.50 0.00 26.00 0.00 22.80 0.00 26.00 0.00 23.10 0.00 26.00 0.00 23.40 0.00 26.00 0.00 23.70 0.00 26.00 0.00 24.00 0.00 26.00 0.00 24.30 0.00 26.00 0.00 24.60 0.00 26.00 0.00 24.90 0.00 26.00 0.00 25.20 0.00 26.00 0.00 25.50 0.00 26.00 0.00 25.80 0.00 26.00 0.00 26.10 0.00 26.00 0.00 26.40 0.00 26.00 0.00 26.70 0.00 26.00 0.00 27.00 0.00 26.00 0.00 27.30 0.00 26.00 0.00 27.60 0.00 26.00 0.00 27.90 0.00 26.00 0.00 Type III 24-hr 2-year Rainfall=3.36"8807.Recharge(10.19.22) 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 2BP: (1) 70'x28' Leaching Facility - Two Rows of (5) 6'x6' Leach Pits, 14' O.C. with stone around Elevation (feet) Discarded (cfs) 26.00 0.00 26.05 0.38 26.10 0.38 26.15 0.38 26.20 0.38 26.25 0.38 26.30 0.39 26.35 0.39 26.40 0.39 26.45 0.39 26.50 0.39 26.55 0.40 26.60 0.40 26.65 0.40 26.70 0.40 26.75 0.40 26.80 0.41 26.85 0.41 26.90 0.41 26.95 0.41 27.00 0.41 27.05 0.41 27.10 0.42 27.15 0.42 27.20 0.42 27.25 0.42 27.30 0.42 27.35 0.43 27.40 0.43 27.45 0.43 27.50 0.43 27.55 0.43 27.60 0.44 27.65 0.44 27.70 0.44 27.75 0.44 27.80 0.44 27.85 0.44 27.90 0.45 27.95 0.45 28.00 0.45 28.05 0.45 28.10 0.45 28.15 0.46 28.20 0.46 28.25 0.46 28.30 0.46 28.35 0.46 28.40 0.47 28.45 0.47 28.50 0.47 28.55 0.47 Elevation (feet) Discarded (cfs) 28.60 0.47 28.65 0.47 28.70 0.48 28.75 0.48 28.80 0.48 28.85 0.48 28.90 0.48 28.95 0.49 29.00 0.49 29.05 0.49 29.10 0.49 29.15 0.49 29.20 0.50 29.25 0.50 29.30 0.50 29.35 0.50 29.40 0.50 29.45 0.50 29.50 0.51 29.55 0.51 29.60 0.51 29.65 0.51 29.70 0.51 29.75 0.52 29.80 0.52 29.85 0.52 29.90 0.52 29.95 0.52 30.00 0.53 30.05 0.53 30.10 0.53 30.15 0.53 30.20 0.53 30.25 0.53 30.30 0.54 30.35 0.54 30.40 0.54 30.45 0.54 30.50 0.54 30.55 0.55 30.60 0.55 30.65 0.55 30.70 0.55 30.75 0.55 30.80 0.56 30.85 0.56 30.90 0.56 30.95 0.56 31.00 0.56 31.05 0.56 31.10 0.57 31.15 0.57 Elevation (feet) Discarded (cfs) 31.20 0.57 31.25 0.57 31.30 0.57 31.35 0.58 31.40 0.58 31.45 0.58 31.50 0.58 31.55 0.58 31.60 0.59 31.65 0.59 31.70 0.59 31.75 0.59 31.80 0.59 31.85 0.59 31.90 0.60 31.95 0.60 32.00 0.60 32.05 0.60 32.10 0.60 32.15 0.61 32.20 0.61 32.25 0.61 32.30 0.61 32.35 0.61 32.40 0.62 32.45 0.62 32.50 0.62 Type III 24-hr 2-year Rainfall=3.36"8807.Recharge(10.19.22) 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 2BP: (1) 70'x28' Leaching Facility - Two Rows of (5) 6'x6' Leach Pits, 14' O.C. with stone around Elevation (feet) Wetted (sq-ft) Storage (cubic-feet) 26.00 1,960 0 26.10 1,980 88 26.20 1,999 176 26.30 2,019 265 26.40 2,038 353 26.50 2,058 441 26.60 2,078 543 26.70 2,097 644 26.80 2,117 746 26.90 2,136 847 27.00 2,156 949 27.10 2,176 1,050 27.20 2,195 1,152 27.30 2,215 1,253 27.40 2,234 1,355 27.50 2,254 1,456 27.60 2,274 1,558 27.70 2,293 1,660 27.80 2,313 1,761 27.90 2,332 1,863 28.00 2,352 1,964 28.10 2,372 2,066 28.20 2,391 2,167 28.30 2,411 2,269 28.40 2,430 2,370 28.50 2,450 2,472 28.60 2,470 2,573 28.70 2,489 2,675 28.80 2,509 2,776 28.90 2,528 2,878 29.00 2,548 2,980 29.10 2,568 3,081 29.20 2,587 3,183 29.30 2,607 3,284 29.40 2,626 3,386 29.50 2,646 3,487 29.60 2,666 3,589 29.70 2,685 3,690 29.80 2,705 3,792 29.90 2,724 3,893 30.00 2,744 3,995 30.10 2,764 4,097 30.20 2,783 4,198 30.30 2,803 4,300 30.40 2,822 4,401 30.50 2,842 4,503 30.60 2,862 4,604 30.70 2,881 4,706 30.80 2,901 4,807 30.90 2,920 4,909 31.00 2,940 5,010 31.10 2,960 5,112 Elevation (feet) Wetted (sq-ft) Storage (cubic-feet) 31.20 2,979 5,213 31.30 2,999 5,315 31.40 3,018 5,417 31.50 3,038 5,518 31.60 3,058 5,620 31.70 3,077 5,721 31.80 3,097 5,823 31.90 3,116 5,924 32.00 3,136 6,026 32.10 3,156 6,127 32.20 3,175 6,229 32.30 3,195 6,330 32.40 3,214 6,432 32.50 3,234 6,534 Type III 24-hr 2-year Rainfall=3.36"8807.Recharge(10.19.22) 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 3P: (2) 15.5' x 4.33' x 2.5' Leaching Facilities (per Dwelling) - Each with (2) Cultec Recharger 330XLHD Units (Stoneless) Inflow Area = 0.030 ac,100.00% Impervious, Inflow Depth = 3.13" for 2-year event Inflow = 0.10 cfs @ 12.08 hrs, Volume= 0.008 af Outflow = 0.03 cfs @ 12.42 hrs, Volume= 0.008 af, Atten= 72%, Lag= 20.3 min Discarded = 0.03 cfs @ 12.42 hrs, Volume= 0.008 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-27.99 hrs, dt= 0.03 hrs Peak Elev= 50.50' @ 12.42 hrs Surf.Area= 120 sf Storage= 61 cf Plug-Flow detention time= 10.9 min calculated for 0.008 af (100% of inflow) Center-of-Mass det. time= 10.9 min ( 766.3 - 755.4 ) Volume Invert Avail.Storage Storage Description #1 50.00' 231 cf Cultec R-330XLHD x 4 Effective Size= 47.8"W x 30.0"H => 7.45 sf x 7.00'L = 52.2 cf Overall Size= 52.0"W x 30.5"H x 8.50'L with 1.50' Overlap Row Length Adjustment= +1.50' x 7.45 sf x 2 rows Device Routing Invert Outlet Devices #1 Discarded 50.00'8.270 in/hr Exfiltration over Wetted area Phase-In= 0.01' Discarded OutFlow Max=0.03 cfs @ 12.42 hrs HW=50.50' (Free Discharge) 1=Exfiltration (Exfiltration Controls 0.03 cfs) Pond 3P: (2) 15.5' x 4.33' x 2.5' Leaching Facilities (per Dwelling) - Each with (2) Cultec Recharger 330XLHD Units (Stoneless) Inflow Discarded 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=0.030 ac Peak Elev=50.50' Storage=61 cf 0.10 cfs 0.03 cfs Type III 24-hr 2-year Rainfall=3.36"8807.Recharge(10.19.22) 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 3P: (2) 15.5' x 4.33' x 2.5' Leaching Facilities (per Dwelling) - Each with (2) Cultec Recharger 330XLHD Units (Stoneless) Discarded Stage-Discharge Discharge (cfs) 0.040.0350.030.0250.020.0150.010.0050Elevation (feet)52 51 50 Exfiltration Pond 3P: (2) 15.5' x 4.33' x 2.5' Leaching Facilities (per Dwelling) - Each with (2) Cultec Recharger 330XLHD Units (Stoneless) Wetted Storage Stage-Area-Storage Storage (cubic-feet) 220200180160140120100806040200 Surface/Horizontal/Wetted Area (sq-ft) 220200180160140120100806040200 Elevation (feet)52 51 50 Cultec R-330XLHD Type III 24-hr 2-year Rainfall=3.36"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 46HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Hydrograph for Pond 3P: (2) 15.5' x 4.33' x 2.5' Leaching Facilities (per Dwelling) - Each with (2) Cultec Recharger 330XLHD Units (Stoneless) Time (hours) Inflow (cfs) Storage (cubic-feet) Elevation (feet) Discarded (cfs) 0.00 0.00 0 50.00 0.00 0.60 0.00 0 50.00 0.00 1.20 0.00 0 50.00 0.00 1.80 0.00 0 50.00 0.00 2.40 0.00 0 50.00 0.00 3.00 0.00 0 50.00 0.00 3.60 0.00 0 50.00 0.00 4.20 0.00 0 50.00 0.00 4.80 0.00 0 50.00 0.00 5.40 0.00 0 50.00 0.00 6.00 0.00 0 50.00 0.00 6.60 0.00 0 50.00 0.00 7.20 0.00 0 50.00 0.00 7.80 0.00 0 50.00 0.00 8.40 0.00 0 50.00 0.00 9.00 0.00 0 50.00 0.00 9.60 0.00 0 50.00 0.00 10.20 0.00 0 50.00 0.00 10.80 0.01 0 50.00 0.01 11.40 0.01 1 50.00 0.01 12.00 0.06 13 50.11 0.02 12.60 0.01 56 50.46 0.03 13.20 0.01 21 50.17 0.02 13.80 0.01 0 50.00 0.01 14.40 0.00 0 50.00 0.00 15.00 0.00 0 50.00 0.00 15.60 0.00 0 50.00 0.00 16.20 0.00 0 50.00 0.00 16.80 0.00 0 50.00 0.00 17.40 0.00 0 50.00 0.00 18.00 0.00 0 50.00 0.00 18.60 0.00 0 50.00 0.00 19.20 0.00 0 50.00 0.00 19.80 0.00 0 50.00 0.00 20.40 0.00 0 50.00 0.00 21.00 0.00 0 50.00 0.00 21.60 0.00 0 50.00 0.00 22.20 0.00 0 50.00 0.00 22.80 0.00 0 50.00 0.00 23.40 0.00 0 50.00 0.00 24.00 0.00 0 50.00 0.00 24.60 0.00 0 50.00 0.00 25.20 0.00 0 50.00 0.00 25.80 0.00 0 50.00 0.00 26.40 0.00 0 50.00 0.00 27.00 0.00 0 50.00 0.00 27.60 0.00 0 50.00 0.00 Type III 24-hr 2-year Rainfall=3.36"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 47HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Stage-Discharge for Pond 3P: (2) 15.5' x 4.33' x 2.5' Leaching Facilities (per Dwelling) - Each with (2) Cultec Recharger 330XLHD Units (Stoneless) Elevation (feet) Discarded (cfs) 50.00 0.00 50.02 0.02 50.04 0.02 50.06 0.02 50.08 0.02 50.10 0.02 50.12 0.02 50.14 0.02 50.16 0.02 50.18 0.02 50.20 0.02 50.22 0.02 50.24 0.03 50.26 0.03 50.28 0.03 50.30 0.03 50.32 0.03 50.34 0.03 50.36 0.03 50.38 0.03 50.40 0.03 50.42 0.03 50.44 0.03 50.46 0.03 50.48 0.03 50.50 0.03 50.52 0.03 50.54 0.03 50.56 0.03 50.58 0.03 50.60 0.03 50.62 0.03 50.64 0.03 50.66 0.03 50.68 0.03 50.70 0.03 50.72 0.03 50.74 0.03 50.76 0.03 50.78 0.03 50.80 0.03 50.82 0.03 50.84 0.03 50.86 0.03 50.88 0.03 50.90 0.03 50.92 0.03 50.94 0.03 50.96 0.03 50.98 0.03 51.00 0.03 51.02 0.03 Elevation (feet) Discarded (cfs) 51.04 0.03 51.06 0.03 51.08 0.03 51.10 0.03 51.12 0.03 51.14 0.03 51.16 0.03 51.18 0.03 51.20 0.03 51.22 0.03 51.24 0.03 51.26 0.03 51.28 0.03 51.30 0.03 51.32 0.03 51.34 0.03 51.36 0.03 51.38 0.03 51.40 0.03 51.42 0.03 51.44 0.03 51.46 0.03 51.48 0.03 51.50 0.03 51.52 0.03 51.54 0.03 51.56 0.03 51.58 0.03 51.60 0.03 51.62 0.03 51.64 0.03 51.66 0.03 51.68 0.03 51.70 0.03 51.72 0.03 51.74 0.03 51.76 0.04 51.78 0.04 51.80 0.04 51.82 0.04 51.84 0.04 51.86 0.04 51.88 0.04 51.90 0.04 51.92 0.04 51.94 0.04 51.96 0.04 51.98 0.04 52.00 0.04 52.02 0.04 52.04 0.04 52.06 0.04 Elevation (feet) Discarded (cfs) 52.08 0.04 52.10 0.04 52.12 0.04 52.14 0.04 52.16 0.04 52.18 0.04 52.20 0.04 52.22 0.04 52.24 0.04 52.26 0.04 52.28 0.04 52.30 0.04 52.32 0.04 52.34 0.04 52.36 0.04 52.38 0.04 52.40 0.04 52.42 0.04 52.44 0.04 52.46 0.04 52.48 0.04 52.50 0.04 Type III 24-hr 2-year Rainfall=3.36"8807.Recharge(10.19.22) 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-Area-Storage for Pond 3P: (2) 15.5' x 4.33' x 2.5' Leaching Facilities (per Dwelling) - Each with (2) Cultec Recharger 330XLHD Units (Stoneless) Elevation (feet) Wetted (sq-ft) Storage (cubic-feet) 50.00 124 0 50.05 125 6 50.10 127 12 50.15 128 18 50.20 130 24 50.25 131 30 50.30 133 37 50.35 134 43 50.40 136 49 50.45 138 55 50.50 139 61 50.55 141 66 50.60 142 72 50.65 144 78 50.70 146 84 50.75 148 90 50.80 149 95 50.85 151 101 50.90 152 107 50.95 154 112 51.00 155 118 51.05 157 123 51.10 158 129 51.15 160 134 51.20 162 140 51.25 163 145 51.30 165 151 51.35 167 156 51.40 169 161 51.45 171 166 51.50 173 171 51.55 175 175 51.60 177 180 51.65 179 185 51.70 181 189 51.75 183 193 51.80 185 197 51.85 187 201 51.90 189 205 51.95 192 209 52.00 194 212 52.05 197 216 52.10 200 219 52.15 203 222 52.20 207 224 52.25 211 226 52.30 215 228 52.35 219 229 52.40 223 230 52.45 227 231 52.50 232 231 Type III 24-hr 10-year Rainfall=4.88"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 49HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Summary for Subcatchment 1AS: Runoff into Catch Basins - M1 Runoff = 0.42 cfs @ 12.11 hrs, Volume= 0.039 af, Depth= 0.86" Routed to Pond 1AR : (2) CB's in Pavement 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 6,286 98 Paved parking, HSG A 15,144 39 >75% Grass cover, Good, HSG A 2,500 36 Woods, Fair, HSG A 23,930 54 Weighted Average 17,644 73.73% Pervious Area 6,286 26.27% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.2 50 0.0600 0.16 Sheet Flow, Grass: Dense n= 0.240 P2= 3.36" 0.5 50 0.0600 1.71 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 0.3 60 0.0300 3.52 Shallow Concentrated Flow, Paved Kv= 20.3 fps 6.0 160 Total Subcatchment 1AS: Runoff into Catch Basins - M1 Runoff Hydrograph Time (hours) 26242220181614121086420Flow (cfs)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 10-year Rainfall=4.88" Runoff Area=23,930 sf Runoff Volume=0.039 af Runoff Depth=0.86" Flow Length=160' Tc=6.0 min CN=54 0.42 cfs Type III 24-hr 10-year Rainfall=4.88"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 50HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Hydrograph for Subcatchment 1AS: Runoff into Catch Basins - M1 Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 0.00 0.00 0.00 0.00 0.30 0.01 0.00 0.00 0.60 0.03 0.00 0.00 0.90 0.04 0.00 0.00 1.20 0.06 0.00 0.00 1.50 0.07 0.00 0.00 1.80 0.09 0.00 0.00 2.10 0.10 0.00 0.00 2.40 0.12 0.00 0.00 2.70 0.13 0.00 0.00 3.00 0.15 0.00 0.00 3.30 0.17 0.00 0.00 3.60 0.19 0.00 0.00 3.90 0.20 0.00 0.00 4.20 0.22 0.00 0.00 4.50 0.24 0.00 0.00 4.80 0.26 0.00 0.00 5.10 0.28 0.00 0.00 5.40 0.31 0.00 0.00 5.70 0.33 0.00 0.00 6.00 0.35 0.00 0.00 6.30 0.38 0.00 0.00 6.60 0.40 0.00 0.00 6.90 0.43 0.00 0.00 7.20 0.46 0.00 0.00 7.50 0.50 0.00 0.00 7.80 0.53 0.00 0.00 8.10 0.57 0.00 0.00 8.40 0.61 0.00 0.00 8.70 0.66 0.00 0.00 9.00 0.71 0.00 0.00 9.30 0.77 0.00 0.00 9.60 0.83 0.00 0.00 9.90 0.90 0.00 0.00 10.20 0.97 0.00 0.00 10.50 1.06 0.00 0.00 10.80 1.15 0.00 0.00 11.10 1.26 0.00 0.00 11.40 1.40 0.00 0.00 11.70 1.66 0.00 0.00 12.00 2.44 0.06 0.14 12.30 3.22 0.23 0.26 12.60 3.48 0.31 0.11 12.90 3.62 0.35 0.08 13.20 3.73 0.39 0.07 13.50 3.82 0.42 0.06 13.80 3.91 0.45 0.06 14.10 3.98 0.48 0.05 14.40 4.05 0.51 0.05 14.70 4.11 0.53 0.04 15.00 4.17 0.55 0.04 15.30 4.22 0.57 0.04 Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 15.60 4.27 0.59 0.03 15.90 4.31 0.61 0.03 16.20 4.35 0.63 0.03 16.50 4.38 0.64 0.03 16.80 4.42 0.66 0.03 17.10 4.45 0.67 0.02 17.40 4.48 0.68 0.02 17.70 4.50 0.69 0.02 18.00 4.53 0.70 0.02 18.30 4.55 0.71 0.02 18.60 4.57 0.72 0.02 18.90 4.60 0.73 0.02 19.20 4.62 0.74 0.02 19.50 4.64 0.75 0.02 19.80 4.66 0.76 0.02 20.10 4.68 0.77 0.02 20.40 4.70 0.78 0.02 20.70 4.71 0.79 0.02 21.00 4.73 0.79 0.01 21.30 4.75 0.80 0.01 21.60 4.76 0.81 0.01 21.90 4.78 0.82 0.01 22.20 4.80 0.82 0.01 22.50 4.81 0.83 0.01 22.80 4.83 0.84 0.01 23.10 4.84 0.84 0.01 23.40 4.85 0.85 0.01 23.70 4.87 0.86 0.01 24.00 4.88 0.86 0.01 24.30 4.88 0.86 0.00 24.60 4.88 0.86 0.00 24.90 4.88 0.86 0.00 25.20 4.88 0.86 0.00 25.50 4.88 0.86 0.00 25.80 4.88 0.86 0.00 26.10 4.88 0.86 0.00 26.40 4.88 0.86 0.00 26.70 4.88 0.86 0.00 27.00 4.88 0.86 0.00 27.30 4.88 0.86 0.00 27.60 4.88 0.86 0.00 27.90 4.88 0.86 0.00 Type III 24-hr 10-year Rainfall=4.88"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 51HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Summary for Subcatchment 1BS: Direct Runoff into Swale - M1 Runoff = 0.00 cfs @ 12.50 hrs, Volume= 0.003 af, Depth= 0.18" Routed to Pond 1AP : Grassed Swale Leaching - M1 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 7,973 39 >75% Grass cover, Good, HSG A 7,973 100.00% 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 1BS: Direct Runoff into Swale - M1 Runoff Hydrograph Time (hours) 26242220181614121086420Flow (cfs)0.005 0.005 0.004 0.004 0.003 0.003 0.002 0.002 0.001 0.001 0 Type III 24-hr 10-year Rainfall=4.88" Runoff Area=7,973 sf Runoff Volume=0.003 af Runoff Depth=0.18" Tc=6.0 min CN=39 0.00 cfs Type III 24-hr 10-year Rainfall=4.88"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 52HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Hydrograph for Subcatchment 1BS: Direct Runoff into Swale - M1 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 0.00 12.90 3.62 0.02 0.00 13.20 3.73 0.02 0.00 13.50 3.82 0.03 0.00 13.80 3.91 0.04 0.00 14.10 3.98 0.04 0.00 14.40 4.05 0.05 0.00 14.70 4.11 0.06 0.00 15.00 4.17 0.06 0.00 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.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 53HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Summary for Subcatchment 2AS: Runoff into Catch Basins - M2 Runoff = 2.06 cfs @ 12.13 hrs, Volume= 0.206 af, Depth= 0.86" Routed to Pond 2AR : (7) CB's in Pavement 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 33,633 98 Paved parking, HSG A 48,641 39 >75% Grass cover, Good, HSG A 42,245 36 Woods, Fair, HSG A 124,519 54 Weighted Average 90,886 72.99% Pervious Area 33,633 27.01% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.5 50 0.0500 0.15 Sheet Flow, Grass: Dense n= 0.240 P2= 3.36" 1.5 90 0.0200 0.99 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 0.4 130 0.0600 4.97 Shallow Concentrated Flow, Paved Kv= 20.3 fps 7.4 270 Total Subcatchment 2AS: Runoff into Catch Basins - M2 Runoff Hydrograph Time (hours) 26242220181614121086420Flow (cfs)2 1 0 Type III 24-hr 10-year Rainfall=4.88" Runoff Area=124,519 sf Runoff Volume=0.206 af Runoff Depth=0.86" Flow Length=270' Tc=7.4 min CN=54 2.06 cfs Type III 24-hr 10-year Rainfall=4.88"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 54HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Hydrograph for Subcatchment 2AS: Runoff into Catch Basins - M2 Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 0.00 0.00 0.00 0.00 0.30 0.01 0.00 0.00 0.60 0.03 0.00 0.00 0.90 0.04 0.00 0.00 1.20 0.06 0.00 0.00 1.50 0.07 0.00 0.00 1.80 0.09 0.00 0.00 2.10 0.10 0.00 0.00 2.40 0.12 0.00 0.00 2.70 0.13 0.00 0.00 3.00 0.15 0.00 0.00 3.30 0.17 0.00 0.00 3.60 0.19 0.00 0.00 3.90 0.20 0.00 0.00 4.20 0.22 0.00 0.00 4.50 0.24 0.00 0.00 4.80 0.26 0.00 0.00 5.10 0.28 0.00 0.00 5.40 0.31 0.00 0.00 5.70 0.33 0.00 0.00 6.00 0.35 0.00 0.00 6.30 0.38 0.00 0.00 6.60 0.40 0.00 0.00 6.90 0.43 0.00 0.00 7.20 0.46 0.00 0.00 7.50 0.50 0.00 0.00 7.80 0.53 0.00 0.00 8.10 0.57 0.00 0.00 8.40 0.61 0.00 0.00 8.70 0.66 0.00 0.00 9.00 0.71 0.00 0.00 9.30 0.77 0.00 0.00 9.60 0.83 0.00 0.00 9.90 0.90 0.00 0.00 10.20 0.97 0.00 0.00 10.50 1.06 0.00 0.00 10.80 1.15 0.00 0.00 11.10 1.26 0.00 0.00 11.40 1.40 0.00 0.00 11.70 1.66 0.00 0.00 12.00 2.44 0.06 0.58 12.30 3.22 0.23 1.42 12.60 3.48 0.31 0.61 12.90 3.62 0.35 0.43 13.20 3.73 0.39 0.34 13.50 3.82 0.42 0.32 13.80 3.91 0.45 0.29 14.10 3.98 0.48 0.26 14.40 4.05 0.51 0.25 14.70 4.11 0.53 0.23 15.00 4.17 0.55 0.22 15.30 4.22 0.57 0.20 Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 15.60 4.27 0.59 0.18 15.90 4.31 0.61 0.17 16.20 4.35 0.63 0.15 16.50 4.38 0.64 0.14 16.80 4.42 0.66 0.13 17.10 4.45 0.67 0.13 17.40 4.48 0.68 0.12 17.70 4.50 0.69 0.11 18.00 4.53 0.70 0.10 18.30 4.55 0.71 0.10 18.60 4.57 0.72 0.09 18.90 4.60 0.73 0.09 19.20 4.62 0.74 0.09 19.50 4.64 0.75 0.09 19.80 4.66 0.76 0.08 20.10 4.68 0.77 0.08 20.40 4.70 0.78 0.08 20.70 4.71 0.79 0.08 21.00 4.73 0.79 0.08 21.30 4.75 0.80 0.07 21.60 4.76 0.81 0.07 21.90 4.78 0.82 0.07 22.20 4.80 0.82 0.07 22.50 4.81 0.83 0.07 22.80 4.83 0.84 0.07 23.10 4.84 0.84 0.06 23.40 4.85 0.85 0.06 23.70 4.87 0.86 0.06 24.00 4.88 0.86 0.06 24.30 4.88 0.86 0.00 24.60 4.88 0.86 0.00 24.90 4.88 0.86 0.00 25.20 4.88 0.86 0.00 25.50 4.88 0.86 0.00 25.80 4.88 0.86 0.00 26.10 4.88 0.86 0.00 26.40 4.88 0.86 0.00 26.70 4.88 0.86 0.00 27.00 4.88 0.86 0.00 27.30 4.88 0.86 0.00 27.60 4.88 0.86 0.00 27.90 4.88 0.86 0.00 Type III 24-hr 10-year Rainfall=4.88"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 55HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Summary for Subcatchment 2BS: Direct Runoff into Swale - M2 Runoff = 0.11 cfs @ 12.40 hrs, Volume= 0.029 af, Depth= 0.28" Routed to Pond 2AP : Grassed Swale Leaching - M2 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 25,000 36 Woods, Fair, HSG A 24,058 39 >75% Grass cover, Good, HSG A 4,089 98 Paved parking, HSG A 53,147 42 Weighted Average 49,058 92.31% Pervious Area 4,089 7.69% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 3.5 50 0.1600 0.24 Sheet Flow, Grass: Dense n= 0.240 P2= 3.36" 2.8 330 0.0800 1.98 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 6.3 380 Total Subcatchment 2BS: Direct Runoff into Swale - M2 Runoff Hydrograph Time (hours) 26242220181614121086420Flow (cfs)0.12 0.115 0.11 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 10-year Rainfall=4.88" Runoff Area=53,147 sf Runoff Volume=0.029 af Runoff Depth=0.28" Flow Length=380' Tc=6.3 min CN=42 0.11 cfs Type III 24-hr 10-year Rainfall=4.88"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 56HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Hydrograph for Subcatchment 2BS: Direct Runoff into Swale - M2 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 0.09 12.60 3.48 0.04 0.07 12.90 3.62 0.05 0.06 13.20 3.73 0.06 0.05 13.50 3.82 0.08 0.05 13.80 3.91 0.09 0.05 14.10 3.98 0.10 0.05 14.40 4.05 0.11 0.04 14.70 4.11 0.12 0.04 15.00 4.17 0.13 0.04 15.30 4.22 0.14 0.04 Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 15.60 4.27 0.15 0.04 15.90 4.31 0.16 0.03 16.20 4.35 0.16 0.03 16.50 4.38 0.17 0.03 16.80 4.42 0.18 0.03 17.10 4.45 0.18 0.03 17.40 4.48 0.19 0.02 17.70 4.50 0.20 0.02 18.00 4.53 0.20 0.02 18.30 4.55 0.21 0.02 18.60 4.57 0.21 0.02 18.90 4.60 0.22 0.02 19.20 4.62 0.22 0.02 19.50 4.64 0.22 0.02 19.80 4.66 0.23 0.02 20.10 4.68 0.23 0.02 20.40 4.70 0.24 0.02 20.70 4.71 0.24 0.02 21.00 4.73 0.25 0.02 21.30 4.75 0.25 0.02 21.60 4.76 0.25 0.02 21.90 4.78 0.26 0.02 22.20 4.80 0.26 0.02 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.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 57HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Summary for Subcatchment 3S: Roof Runoff (per Dwelling) Runoff = 0.14 cfs @ 12.08 hrs, Volume= 0.011 af, Depth= 4.64" Routed to Pond 3P : (2) 15.5' x 4.33' x 2.5' Leaching Facilities (per Dwelling) - Each with (2) Cultec Recharger 330XLHD Units (Stoneless) 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 1,288 98 Roofs, HSG A 1,288 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 0.1 20 0.4000 3.33 Sheet Flow, Smooth surfaces n= 0.011 P2= 3.25" 0.1 20 Total, Increased to minimum Tc = 6.0 min Subcatchment 3S: Roof Runoff (per Dwelling) Runoff Hydrograph Time (hours) 26242220181614121086420Flow (cfs)0.15 0.14 0.13 0.12 0.11 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0 Type III 24-hr 10-year Rainfall=4.88" Runoff Area=1,288 sf Runoff Volume=0.011 af Runoff Depth=4.64" Flow Length=20' Slope=0.4000 '/' Tc=6.0 min CN=98 0.14 cfs Type III 24-hr 10-year Rainfall=4.88"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 58HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Hydrograph for Subcatchment 3S: Roof Runoff (per Dwelling) 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 0.01 0.00 2.10 0.10 0.01 0.00 2.40 0.12 0.02 0.00 2.70 0.13 0.03 0.00 3.00 0.15 0.04 0.00 3.30 0.17 0.05 0.00 3.60 0.19 0.06 0.00 3.90 0.20 0.07 0.00 4.20 0.22 0.09 0.00 4.50 0.24 0.10 0.00 4.80 0.26 0.12 0.00 5.10 0.28 0.13 0.00 5.40 0.31 0.15 0.00 5.70 0.33 0.17 0.00 6.00 0.35 0.19 0.00 6.30 0.38 0.21 0.00 6.60 0.40 0.23 0.00 6.90 0.43 0.26 0.00 7.20 0.46 0.28 0.00 7.50 0.50 0.31 0.00 7.80 0.53 0.35 0.00 8.10 0.57 0.38 0.00 8.40 0.61 0.42 0.00 8.70 0.66 0.46 0.00 9.00 0.71 0.51 0.01 9.30 0.77 0.57 0.01 9.60 0.83 0.63 0.01 9.90 0.90 0.69 0.01 10.20 0.97 0.76 0.01 10.50 1.06 0.85 0.01 10.80 1.15 0.94 0.01 11.10 1.26 1.04 0.01 11.40 1.40 1.18 0.01 11.70 1.66 1.43 0.03 12.00 2.44 2.21 0.09 12.30 3.22 2.99 0.06 12.60 3.48 3.25 0.02 12.90 3.62 3.39 0.01 13.20 3.73 3.49 0.01 13.50 3.82 3.59 0.01 13.80 3.91 3.67 0.01 14.10 3.98 3.75 0.01 14.40 4.05 3.81 0.01 14.70 4.11 3.88 0.01 15.00 4.17 3.93 0.01 15.30 4.22 3.99 0.01 Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 15.60 4.27 4.03 0.00 15.90 4.31 4.08 0.00 16.20 4.35 4.11 0.00 16.50 4.38 4.15 0.00 16.80 4.42 4.18 0.00 17.10 4.45 4.21 0.00 17.40 4.48 4.24 0.00 17.70 4.50 4.27 0.00 18.00 4.53 4.29 0.00 18.30 4.55 4.32 0.00 18.60 4.57 4.34 0.00 18.90 4.60 4.36 0.00 19.20 4.62 4.38 0.00 19.50 4.64 4.40 0.00 19.80 4.66 4.42 0.00 20.10 4.68 4.44 0.00 20.40 4.70 4.46 0.00 20.70 4.71 4.48 0.00 21.00 4.73 4.49 0.00 21.30 4.75 4.51 0.00 21.60 4.76 4.53 0.00 21.90 4.78 4.54 0.00 22.20 4.80 4.56 0.00 22.50 4.81 4.58 0.00 22.80 4.83 4.59 0.00 23.10 4.84 4.60 0.00 23.40 4.85 4.62 0.00 23.70 4.87 4.63 0.00 24.00 4.88 4.64 0.00 24.30 4.88 4.64 0.00 24.60 4.88 4.64 0.00 24.90 4.88 4.64 0.00 25.20 4.88 4.64 0.00 25.50 4.88 4.64 0.00 25.80 4.88 4.64 0.00 26.10 4.88 4.64 0.00 26.40 4.88 4.64 0.00 26.70 4.88 4.64 0.00 27.00 4.88 4.64 0.00 27.30 4.88 4.64 0.00 27.60 4.88 4.64 0.00 27.90 4.88 4.64 0.00 Type III 24-hr 10-year Rainfall=4.88"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 59HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Summary for Pond 1AP: Grassed Swale Leaching - M1 Inflow Area = 0.732 ac, 19.70% Impervious, Inflow Depth = 0.69" for 10-year event Inflow = 0.42 cfs @ 12.11 hrs, Volume= 0.042 af Outflow = 0.05 cfs @ 14.06 hrs, Volume= 0.042 af, Atten= 87%, Lag= 117.1 min Discarded = 0.04 cfs @ 14.06 hrs, Volume= 0.041 af Secondary = 0.02 cfs @ 14.06 hrs, Volume= 0.002 af Routed to Pond 1BP : (1) 28'x14' Leaching Facility - (2) 6'x6' Leach Pits, 14' O.C. with stone around Routing by Dyn-Stor-Ind method, Time Span= 0.00-27.99 hrs, dt= 0.03 hrs Peak Elev= 50.01' @ 14.06 hrs Surf.Area= 626 sf Storage= 699 cf Plug-Flow detention time= 234.6 min calculated for 0.042 af (100% of inflow) Center-of-Mass det. time= 234.6 min ( 1,141.4 - 906.8 ) Volume Invert Avail.Storage Storage Description #1 48.50' 2,417 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) 48.50 319 92.0 0 0 319 50.00 624 111.0 695 695 662 50.50 738 117.0 340 1,035 784 52.00 1,118 136.0 1,382 2,417 1,212 Device Routing Invert Outlet Devices #1 Discarded 48.50'2.410 in/hr Exfiltration over Wetted area Phase-In= 0.01' #2 Secondary 50.00'24.0" x 24.0" Horiz. Orifice/Grate C= 0.600 Limited to weir flow at low heads Discarded OutFlow Max=0.04 cfs @ 14.06 hrs HW=50.01' (Free Discharge) 1=Exfiltration (Exfiltration Controls 0.04 cfs) Secondary OutFlow Max=0.02 cfs @ 14.06 hrs HW=50.01' TW=41.50' (Dynamic Tailwater) 2=Orifice/Grate (Weir Controls 0.02 cfs @ 0.29 fps) Type III 24-hr 10-year Rainfall=4.88"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 60HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Pond 1AP: Grassed Swale Leaching - M1 Inflow Outflow Discarded Secondary Hydrograph Time (hours) 26242220181614121086420Flow (cfs)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 Inflow Area=0.732 ac Peak Elev=50.01' Storage=699 cf 0.42 cfs 0.05 cfs 0.04 cfs 0.02 cfs Pond 1AP: Grassed Swale Leaching - M1 Total Discarded Secondary Stage-Discharge Discharge (cfs) 26242220181614121086420Elevation (feet)52 51 50 49 Exfiltration Orifice/Grate Type III 24-hr 10-year Rainfall=4.88"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 61HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Pond 1AP: Grassed Swale Leaching - M1 Surface Wetted Storage Stage-Area-Storage Storage (cubic-feet) 2,0001,5001,0005000 Surface/Horizontal/Wetted Area (sq-ft) 1,2001,0008006004002000 Elevation (feet)52 51 50 49 Grassed Swale Type III 24-hr 10-year Rainfall=4.88"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 62HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Hydrograph for Pond 1AP: Grassed Swale Leaching - M1 Time (hours) Inflow (cfs) Storage (cubic-feet) Elevation (feet) Outflow (cfs) Discarded (cfs) Secondary (cfs) 0.00 0.00 0 48.50 0.00 0.00 0.00 0.60 0.00 0 48.50 0.00 0.00 0.00 1.20 0.00 0 48.50 0.00 0.00 0.00 1.80 0.00 0 48.50 0.00 0.00 0.00 2.40 0.00 0 48.50 0.00 0.00 0.00 3.00 0.00 0 48.50 0.00 0.00 0.00 3.60 0.00 0 48.50 0.00 0.00 0.00 4.20 0.00 0 48.50 0.00 0.00 0.00 4.80 0.00 0 48.50 0.00 0.00 0.00 5.40 0.00 0 48.50 0.00 0.00 0.00 6.00 0.00 0 48.50 0.00 0.00 0.00 6.60 0.00 0 48.50 0.00 0.00 0.00 7.20 0.00 0 48.50 0.00 0.00 0.00 7.80 0.00 0 48.50 0.00 0.00 0.00 8.40 0.00 0 48.50 0.00 0.00 0.00 9.00 0.00 0 48.50 0.00 0.00 0.00 9.60 0.00 0 48.50 0.00 0.00 0.00 10.20 0.00 0 48.50 0.00 0.00 0.00 10.80 0.00 0 48.50 0.00 0.00 0.00 11.40 0.00 0 48.50 0.00 0.00 0.00 12.00 0.14 24 48.57 0.02 0.02 0.00 12.60 0.11 514 49.69 0.03 0.03 0.00 13.20 0.07 625 49.89 0.04 0.04 0.00 13.80 0.06 688 49.99 0.04 0.04 0.00 14.40 0.05 699 50.01 0.05 0.04 0.01 15.00 0.05 698 50.00 0.05 0.04 0.01 15.60 0.04 696 50.00 0.04 0.04 0.00 16.20 0.03 690 49.99 0.04 0.04 0.00 16.80 0.03 677 49.97 0.04 0.04 0.00 17.40 0.03 657 49.94 0.04 0.04 0.00 18.00 0.02 630 49.89 0.04 0.04 0.00 18.60 0.02 599 49.84 0.03 0.03 0.00 19.20 0.02 568 49.79 0.03 0.03 0.00 19.80 0.02 536 49.73 0.03 0.03 0.00 20.40 0.02 504 49.67 0.03 0.03 0.00 21.00 0.02 471 49.61 0.03 0.03 0.00 21.60 0.02 439 49.55 0.03 0.03 0.00 22.20 0.02 406 49.49 0.03 0.03 0.00 22.80 0.01 374 49.43 0.03 0.03 0.00 23.40 0.01 341 49.36 0.03 0.03 0.00 24.00 0.01 309 49.29 0.03 0.03 0.00 24.60 0.00 255 49.17 0.03 0.03 0.00 25.20 0.00 201 49.05 0.02 0.02 0.00 25.80 0.00 150 48.92 0.02 0.02 0.00 26.40 0.00 103 48.80 0.02 0.02 0.00 27.00 0.00 58 48.67 0.02 0.02 0.00 27.60 0.00 17 48.55 0.02 0.02 0.00 Type III 24-hr 10-year Rainfall=4.88"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 63HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Stage-Discharge for Pond 1AP: Grassed Swale Leaching - M1 Elevation (feet) Discharge (cfs) Discarded (cfs) Secondary (cfs) 48.50 0.00 0.00 0.00 48.55 0.02 0.02 0.00 48.60 0.02 0.02 0.00 48.65 0.02 0.02 0.00 48.70 0.02 0.02 0.00 48.75 0.02 0.02 0.00 48.80 0.02 0.02 0.00 48.85 0.02 0.02 0.00 48.90 0.02 0.02 0.00 48.95 0.02 0.02 0.00 49.00 0.02 0.02 0.00 49.05 0.02 0.02 0.00 49.10 0.03 0.03 0.00 49.15 0.03 0.03 0.00 49.20 0.03 0.03 0.00 49.25 0.03 0.03 0.00 49.30 0.03 0.03 0.00 49.35 0.03 0.03 0.00 49.40 0.03 0.03 0.00 49.45 0.03 0.03 0.00 49.50 0.03 0.03 0.00 49.55 0.03 0.03 0.00 49.60 0.03 0.03 0.00 49.65 0.03 0.03 0.00 49.70 0.03 0.03 0.00 49.75 0.03 0.03 0.00 49.80 0.03 0.03 0.00 49.85 0.03 0.03 0.00 49.90 0.04 0.04 0.00 49.95 0.04 0.04 0.00 50.00 0.04 0.04 0.00 50.05 0.33 0.04 0.29 50.10 0.87 0.04 0.83 50.15 1.56 0.04 1.52 50.20 2.38 0.04 2.34 50.25 3.31 0.04 3.27 50.30 4.34 0.04 4.30 50.35 5.46 0.04 5.42 50.40 6.66 0.04 6.62 50.45 7.94 0.04 7.90 50.50 9.29 0.04 9.25 50.55 10.71 0.04 10.67 50.60 12.20 0.05 12.16 50.65 13.76 0.05 13.71 50.70 15.37 0.05 15.32 50.75 16.73 0.05 16.68 50.80 17.27 0.05 17.23 50.85 17.81 0.05 17.76 50.90 18.32 0.05 18.27 50.95 18.82 0.05 18.77 51.00 19.31 0.05 19.26 51.05 19.79 0.05 19.74 Elevation (feet) Discharge (cfs) Discarded (cfs) Secondary (cfs) 51.10 20.25 0.05 20.20 51.15 20.71 0.05 20.65 51.20 21.15 0.05 21.10 51.25 21.59 0.06 21.53 51.30 22.02 0.06 21.96 51.35 22.43 0.06 22.38 51.40 22.85 0.06 22.79 51.45 23.25 0.06 23.19 51.50 23.65 0.06 23.59 51.55 24.04 0.06 23.98 51.60 24.42 0.06 24.36 51.65 24.80 0.06 24.74 51.70 25.17 0.06 25.11 51.75 25.54 0.06 25.48 51.80 25.90 0.06 25.84 51.85 26.26 0.07 26.20 51.90 26.61 0.07 26.55 51.95 26.96 0.07 26.89 52.00 27.31 0.07 27.24 Type III 24-hr 10-year Rainfall=4.88"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 64HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 1AP: Grassed Swale Leaching - M1 Elevation (feet) Surface (sq-ft) Wetted (sq-ft) Storage (cubic-feet) 48.50 319 319 0 48.60 336 340 33 48.70 354 361 67 48.80 372 382 104 48.90 390 404 142 49.00 409 426 182 49.10 429 448 224 49.20 449 471 267 49.30 469 494 313 49.40 490 517 361 49.50 511 540 411 49.60 533 564 463 49.70 555 588 518 49.80 577 612 574 49.90 601 637 633 50.00 624 662 695 50.10 646 686 758 50.20 668 710 824 50.30 691 735 892 50.40 714 759 962 50.50 738 784 1,035 50.60 761 811 1,110 50.70 784 838 1,187 50.80 808 865 1,266 50.90 832 892 1,348 51.00 856 920 1,433 51.10 881 948 1,520 51.20 906 976 1,609 51.30 931 1,004 1,701 51.40 957 1,033 1,795 51.50 983 1,062 1,892 51.60 1,009 1,091 1,992 51.70 1,036 1,121 2,094 51.80 1,063 1,151 2,199 51.90 1,090 1,181 2,306 52.00 1,118 1,212 2,417 Type III 24-hr 10-year Rainfall=4.88"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 65HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Summary for Pond 1AR: (2) CB's in Pavement Inflow Area = 0.549 ac, 26.27% Impervious, Inflow Depth = 0.86" for 10-year event Inflow = 0.42 cfs @ 12.11 hrs, Volume= 0.039 af Outflow = 0.42 cfs @ 12.11 hrs, Volume= 0.039 af, Atten= 0%, Lag= 0.0 min Primary = 0.42 cfs @ 12.11 hrs, Volume= 0.039 af Routed to Pond 1AP : Grassed Swale Leaching - M1 Routing by Dyn-Stor-Ind method, Time Span= 0.00-27.99 hrs, dt= 0.03 hrs Peak Elev= 51.55' @ 12.11 hrs Flood Elev= 53.80' Device Routing Invert Outlet Devices #1 Primary 51.30'12.0" Round Culvert X 2.00 L= 50.0' CPP, projecting, no headwall, Ke= 0.900 Inlet / Outlet Invert= 51.30' / 50.50' S= 0.0160 '/' Cc= 0.900 n= 0.020 Corrugated PE, corrugated interior, Flow Area= 0.79 sf Primary OutFlow Max=0.41 cfs @ 12.11 hrs HW=51.55' TW=48.90' (Dynamic Tailwater) 1=Culvert (Inlet Controls 0.41 cfs @ 1.34 fps) Pond 1AR: (2) CB's in Pavement Inflow Primary Hydrograph Time (hours) 26242220181614121086420Flow (cfs)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 Inflow Area=0.549 ac Peak Elev=51.55' 12.0" Round Culvert x 2.00 n=0.020 L=50.0' S=0.0160 '/' 0.42 cfs 0.42 cfs Type III 24-hr 10-year Rainfall=4.88"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 66HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Pond 1AR: (2) CB's in Pavement Primary Stage-Discharge Discharge (cfs) 876543210Elevation (feet)53 52 Culvert Pond 1AR: (2) CB's in Pavement Storage Stage-Area-Storage Storage (acre-feet) 0Elevation (feet)53 52 Flood Elevation Type III 24-hr 10-year Rainfall=4.88"8807.Recharge(10.19.22) 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 Pond 1AR: (2) CB's in Pavement Time (hours) Inflow (cfs) Elevation (feet) Primary (cfs) 0.00 0.00 51.30 0.00 0.30 0.00 51.30 0.00 0.60 0.00 51.30 0.00 0.90 0.00 51.30 0.00 1.20 0.00 51.30 0.00 1.50 0.00 51.30 0.00 1.80 0.00 51.30 0.00 2.10 0.00 51.30 0.00 2.40 0.00 51.30 0.00 2.70 0.00 51.30 0.00 3.00 0.00 51.30 0.00 3.30 0.00 51.30 0.00 3.60 0.00 51.30 0.00 3.90 0.00 51.30 0.00 4.20 0.00 51.30 0.00 4.50 0.00 51.30 0.00 4.80 0.00 51.30 0.00 5.10 0.00 51.30 0.00 5.40 0.00 51.30 0.00 5.70 0.00 51.30 0.00 6.00 0.00 51.30 0.00 6.30 0.00 51.30 0.00 6.60 0.00 51.30 0.00 6.90 0.00 51.30 0.00 7.20 0.00 51.30 0.00 7.50 0.00 51.30 0.00 7.80 0.00 51.30 0.00 8.10 0.00 51.30 0.00 8.40 0.00 51.30 0.00 8.70 0.00 51.30 0.00 9.00 0.00 51.30 0.00 9.30 0.00 51.30 0.00 9.60 0.00 51.30 0.00 9.90 0.00 51.30 0.00 10.20 0.00 51.30 0.00 10.50 0.00 51.30 0.00 10.80 0.00 51.30 0.00 11.10 0.00 51.30 0.00 11.40 0.00 51.30 0.00 11.70 0.00 51.30 0.00 12.00 0.14 51.45 0.14 12.30 0.26 51.50 0.26 12.60 0.11 51.43 0.11 12.90 0.08 51.41 0.08 13.20 0.07 51.40 0.07 13.50 0.06 51.40 0.06 13.80 0.06 51.39 0.06 14.10 0.05 51.39 0.05 14.40 0.05 51.39 0.05 14.70 0.04 51.38 0.04 15.00 0.04 51.38 0.04 15.30 0.04 51.38 0.04 Time (hours) Inflow (cfs) Elevation (feet) Primary (cfs) 15.60 0.03 51.37 0.03 15.90 0.03 51.37 0.03 16.20 0.03 51.37 0.03 16.50 0.03 51.37 0.03 16.80 0.03 51.36 0.03 17.10 0.02 51.36 0.02 17.40 0.02 51.36 0.02 17.70 0.02 51.36 0.02 18.00 0.02 51.36 0.02 18.30 0.02 51.36 0.02 18.60 0.02 51.35 0.02 18.90 0.02 51.35 0.02 19.20 0.02 51.35 0.02 19.50 0.02 51.35 0.02 19.80 0.02 51.35 0.02 20.10 0.02 51.35 0.02 20.40 0.02 51.35 0.02 20.70 0.02 51.35 0.02 21.00 0.01 51.35 0.01 21.30 0.01 51.35 0.01 21.60 0.01 51.35 0.01 21.90 0.01 51.35 0.01 22.20 0.01 51.35 0.01 22.50 0.01 51.35 0.01 22.80 0.01 51.35 0.01 23.10 0.01 51.35 0.01 23.40 0.01 51.34 0.01 23.70 0.01 51.34 0.01 24.00 0.01 51.34 0.01 24.30 0.00 51.30 0.00 24.60 0.00 51.30 0.00 24.90 0.00 51.30 0.00 25.20 0.00 51.30 0.00 25.50 0.00 51.30 0.00 25.80 0.00 51.30 0.00 26.10 0.00 51.30 0.00 26.40 0.00 51.30 0.00 26.70 0.00 51.30 0.00 27.00 0.00 51.30 0.00 27.30 0.00 51.30 0.00 27.60 0.00 51.30 0.00 27.90 0.00 51.30 0.00 Type III 24-hr 10-year Rainfall=4.88"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 68HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Stage-Discharge for Pond 1AR: (2) CB's in Pavement Elevation (feet) Primary (cfs) 51.30 0.00 51.32 0.00 51.34 0.01 51.36 0.02 51.38 0.04 51.40 0.07 51.42 0.10 51.44 0.13 51.46 0.17 51.48 0.22 51.50 0.27 51.52 0.32 51.54 0.38 51.56 0.44 51.58 0.51 51.60 0.58 51.62 0.66 51.64 0.74 51.66 0.82 51.68 0.91 51.70 1.00 51.72 1.09 51.74 1.19 51.76 1.29 51.78 1.39 51.80 1.49 51.82 1.60 51.84 1.71 51.86 1.82 51.88 1.93 51.90 2.05 51.92 2.17 51.94 2.28 51.96 2.40 51.98 2.52 52.00 2.64 52.02 2.76 52.04 2.88 52.06 3.00 52.08 3.12 52.10 3.24 52.12 3.36 52.14 3.47 52.16 3.58 52.18 3.69 52.20 3.80 52.22 3.90 52.24 3.99 52.26 4.08 52.28 4.16 52.30 4.22 52.32 4.31 Elevation (feet) Primary (cfs) 52.34 4.39 52.36 4.47 52.38 4.55 52.40 4.63 52.42 4.70 52.44 4.78 52.46 4.85 52.48 4.92 52.50 5.00 52.52 5.07 52.54 5.14 52.56 5.21 52.58 5.27 52.60 5.34 52.62 5.41 52.64 5.47 52.66 5.54 52.68 5.60 52.70 5.66 52.72 5.73 52.74 5.79 52.76 5.85 52.78 5.91 52.80 5.97 52.82 6.03 52.84 6.09 52.86 6.15 52.88 6.21 52.90 6.26 52.92 6.32 52.94 6.38 52.96 6.43 52.98 6.47 53.00 6.51 53.02 6.56 53.04 6.60 53.06 6.64 53.08 6.69 53.10 6.73 53.12 6.77 53.14 6.81 53.16 6.85 53.18 6.89 53.20 6.94 53.22 6.98 53.24 7.02 53.26 7.06 53.28 7.10 53.30 7.14 53.32 7.18 53.34 7.22 53.36 7.25 Elevation (feet) Primary (cfs) 53.38 7.29 53.40 7.33 53.42 7.37 53.44 7.41 53.46 7.45 53.48 7.49 53.50 7.52 53.52 7.56 53.54 7.60 53.56 7.63 53.58 7.67 53.60 7.71 53.62 7.75 53.64 7.78 53.66 7.82 53.68 7.85 53.70 7.89 53.72 7.93 53.74 7.96 53.76 8.00 53.78 8.03 53.80 8.07 Type III 24-hr 10-year Rainfall=4.88"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 69HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 1AR: (2) CB's in Pavement Elevation (feet) Storage (acre-feet) 51.30 0.000 51.32 0.000 51.34 0.000 51.36 0.000 51.38 0.000 51.40 0.000 51.42 0.000 51.44 0.000 51.46 0.000 51.48 0.000 51.50 0.000 51.52 0.000 51.54 0.000 51.56 0.000 51.58 0.000 51.60 0.000 51.62 0.000 51.64 0.000 51.66 0.000 51.68 0.000 51.70 0.000 51.72 0.000 51.74 0.000 51.76 0.000 51.78 0.000 51.80 0.000 51.82 0.000 51.84 0.000 51.86 0.000 51.88 0.000 51.90 0.000 51.92 0.000 51.94 0.000 51.96 0.000 51.98 0.000 52.00 0.000 52.02 0.000 52.04 0.000 52.06 0.000 52.08 0.000 52.10 0.000 52.12 0.000 52.14 0.000 52.16 0.000 52.18 0.000 52.20 0.000 52.22 0.000 52.24 0.000 52.26 0.000 52.28 0.000 52.30 0.000 52.32 0.000 Elevation (feet) Storage (acre-feet) 52.34 0.000 52.36 0.000 52.38 0.000 52.40 0.000 52.42 0.000 52.44 0.000 52.46 0.000 52.48 0.000 52.50 0.000 52.52 0.000 52.54 0.000 52.56 0.000 52.58 0.000 52.60 0.000 52.62 0.000 52.64 0.000 52.66 0.000 52.68 0.000 52.70 0.000 52.72 0.000 52.74 0.000 52.76 0.000 52.78 0.000 52.80 0.000 52.82 0.000 52.84 0.000 52.86 0.000 52.88 0.000 52.90 0.000 52.92 0.000 52.94 0.000 52.96 0.000 52.98 0.000 53.00 0.000 53.02 0.000 53.04 0.000 53.06 0.000 53.08 0.000 53.10 0.000 53.12 0.000 53.14 0.000 53.16 0.000 53.18 0.000 53.20 0.000 53.22 0.000 53.24 0.000 53.26 0.000 53.28 0.000 53.30 0.000 53.32 0.000 53.34 0.000 53.36 0.000 Elevation (feet) Storage (acre-feet) 53.38 0.000 53.40 0.000 53.42 0.000 53.44 0.000 53.46 0.000 53.48 0.000 53.50 0.000 53.52 0.000 53.54 0.000 53.56 0.000 53.58 0.000 53.60 0.000 53.62 0.000 53.64 0.000 53.66 0.000 53.68 0.000 53.70 0.000 53.72 0.000 53.74 0.000 53.76 0.000 53.78 0.000 53.80 0.000 Type III 24-hr 10-year Rainfall=4.88"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 70HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Summary for Pond 1BP: (1) 28'x14' Leaching Facility - (2) 6'x6' Leach Pits, 14' O.C. with stone around Inflow = 0.02 cfs @ 14.06 hrs, Volume= 0.002 af Outflow = 0.02 cfs @ 14.07 hrs, Volume= 0.002 af, Atten= 0%, Lag= 0.5 min Discarded = 0.02 cfs @ 14.07 hrs, Volume= 0.002 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-27.99 hrs, dt= 0.03 hrs Peak Elev= 41.50' @ 14.07 hrs Surf.Area= 392 sf Storage= 0 cf Plug-Flow detention time= 0.4 min calculated for 0.002 af (100% of inflow) Center-of-Mass det. time= 0.4 min ( 875.8 - 875.4 ) Volume Invert Avail.Storage Storage Description #1 41.50' 967 cf 14.00'W x 28.00'L x 6.50'H Prismatoid 2,548 cf Overall - 398 cf Embedded = 2,150 cf x 45.0% Voids #2 42.00' 339 cf 6.00'D x 6.00'H Vertical Cone/Cylinder x 2 Inside #1 398 cf Overall - 3.0" Wall Thickness = 339 cf 1,307 cf Total Available Storage Device Routing Invert Outlet Devices #1 Discarded 41.50'8.270 in/hr Exfiltration over Wetted area Phase-In= 0.01' Discarded OutFlow Max=0.02 cfs @ 14.07 hrs HW=41.50' (Free Discharge) 1=Exfiltration (Exfiltration Controls 0.02 cfs) Pond 1BP: (1) 28'x14' Leaching Facility - (2) 6'x6' Leach Pits, 14' O.C. with stone around Inflow Discarded Hydrograph Time (hours) 26242220181614121086420Flow (cfs)0.019 0.018 0.017 0.016 0.015 0.014 0.013 0.012 0.011 0.01 0.009 0.008 0.007 0.006 0.005 0.004 0.003 0.002 0.001 0 Peak Elev=41.50' Storage=0 cf 0.02 cfs 0.02 cfs Type III 24-hr 10-year Rainfall=4.88"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 71HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Pond 1BP: (1) 28'x14' Leaching Facility - (2) 6'x6' Leach Pits, 14' O.C. with stone around Discarded Stage-Discharge Discharge (cfs) 0.170.160.150.140.130.120.110.10.090.080.070.060.050.040.030.020.010Elevation (feet)48 47 46 45 44 43 42 Exfiltration Pond 1BP: (1) 28'x14' Leaching Facility - (2) 6'x6' Leach Pits, 14' O.C. with stone around Wetted Storage Stage-Area-Storage Storage (cubic-feet) 1,2001,0008006004002000 Surface/Horizontal/Wetted Area (sq-ft) 900850800750700650600550500450400350300250200150100500 Elevation (feet)48 47 46 45 44 43 42 Prismatoid Vertical Cone/Cylinder Type III 24-hr 10-year Rainfall=4.88"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 72HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Hydrograph for Pond 1BP: (1) 28'x14' Leaching Facility - (2) 6'x6' Leach Pits, 14' O.C. with stone around Time (hours) Inflow (cfs) Storage (cubic-feet) Elevation (feet) Discarded (cfs) 0.00 0.00 0 41.50 0.00 0.60 0.00 0 41.50 0.00 1.20 0.00 0 41.50 0.00 1.80 0.00 0 41.50 0.00 2.40 0.00 0 41.50 0.00 3.00 0.00 0 41.50 0.00 3.60 0.00 0 41.50 0.00 4.20 0.00 0 41.50 0.00 4.80 0.00 0 41.50 0.00 5.40 0.00 0 41.50 0.00 6.00 0.00 0 41.50 0.00 6.60 0.00 0 41.50 0.00 7.20 0.00 0 41.50 0.00 7.80 0.00 0 41.50 0.00 8.40 0.00 0 41.50 0.00 9.00 0.00 0 41.50 0.00 9.60 0.00 0 41.50 0.00 10.20 0.00 0 41.50 0.00 10.80 0.00 0 41.50 0.00 11.40 0.00 0 41.50 0.00 12.00 0.00 0 41.50 0.00 12.60 0.00 0 41.50 0.00 13.20 0.00 0 41.50 0.00 13.80 0.00 0 41.50 0.00 14.40 0.01 0 41.50 0.01 15.00 0.01 0 41.50 0.01 15.60 0.00 0 41.50 0.00 16.20 0.00 0 41.50 0.00 16.80 0.00 0 41.50 0.00 17.40 0.00 0 41.50 0.00 18.00 0.00 0 41.50 0.00 18.60 0.00 0 41.50 0.00 19.20 0.00 0 41.50 0.00 19.80 0.00 0 41.50 0.00 20.40 0.00 0 41.50 0.00 21.00 0.00 0 41.50 0.00 21.60 0.00 0 41.50 0.00 22.20 0.00 0 41.50 0.00 22.80 0.00 0 41.50 0.00 23.40 0.00 0 41.50 0.00 24.00 0.00 0 41.50 0.00 24.60 0.00 0 41.50 0.00 25.20 0.00 0 41.50 0.00 25.80 0.00 0 41.50 0.00 26.40 0.00 0 41.50 0.00 27.00 0.00 0 41.50 0.00 27.60 0.00 0 41.50 0.00 Type III 24-hr 10-year Rainfall=4.88"8807.Recharge(10.19.22) 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-Discharge for Pond 1BP: (1) 28'x14' Leaching Facility - (2) 6'x6' Leach Pits, 14' O.C. with stone around Elevation (feet) Discarded (cfs) 41.50 0.00 41.55 0.08 41.60 0.08 41.65 0.08 41.70 0.08 41.75 0.08 41.80 0.08 41.85 0.08 41.90 0.08 41.95 0.08 42.00 0.08 42.05 0.08 42.10 0.08 42.15 0.09 42.20 0.09 42.25 0.09 42.30 0.09 42.35 0.09 42.40 0.09 42.45 0.09 42.50 0.09 42.55 0.09 42.60 0.09 42.65 0.09 42.70 0.09 42.75 0.10 42.80 0.10 42.85 0.10 42.90 0.10 42.95 0.10 43.00 0.10 43.05 0.10 43.10 0.10 43.15 0.10 43.20 0.10 43.25 0.10 43.30 0.10 43.35 0.10 43.40 0.11 43.45 0.11 43.50 0.11 43.55 0.11 43.60 0.11 43.65 0.11 43.70 0.11 43.75 0.11 43.80 0.11 43.85 0.11 43.90 0.11 43.95 0.11 44.00 0.12 44.05 0.12 Elevation (feet) Discarded (cfs) 44.10 0.12 44.15 0.12 44.20 0.12 44.25 0.12 44.30 0.12 44.35 0.12 44.40 0.12 44.45 0.12 44.50 0.12 44.55 0.12 44.60 0.12 44.65 0.13 44.70 0.13 44.75 0.13 44.80 0.13 44.85 0.13 44.90 0.13 44.95 0.13 45.00 0.13 45.05 0.13 45.10 0.13 45.15 0.13 45.20 0.13 45.25 0.14 45.30 0.14 45.35 0.14 45.40 0.14 45.45 0.14 45.50 0.14 45.55 0.14 45.60 0.14 45.65 0.14 45.70 0.14 45.75 0.14 45.80 0.14 45.85 0.14 45.90 0.15 45.95 0.15 46.00 0.15 46.05 0.15 46.10 0.15 46.15 0.15 46.20 0.15 46.25 0.15 46.30 0.15 46.35 0.15 46.40 0.15 46.45 0.15 46.50 0.16 46.55 0.16 46.60 0.16 46.65 0.16 Elevation (feet) Discarded (cfs) 46.70 0.16 46.75 0.16 46.80 0.16 46.85 0.16 46.90 0.16 46.95 0.16 47.00 0.16 47.05 0.16 47.10 0.17 47.15 0.17 47.20 0.17 47.25 0.17 47.30 0.17 47.35 0.17 47.40 0.17 47.45 0.17 47.50 0.17 47.55 0.17 47.60 0.17 47.65 0.17 47.70 0.17 47.75 0.18 47.80 0.18 47.85 0.18 47.90 0.18 47.95 0.18 48.00 0.18 Type III 24-hr 10-year Rainfall=4.88"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 74HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 1BP: (1) 28'x14' Leaching Facility - (2) 6'x6' Leach Pits, 14' O.C. with stone around Elevation (feet) Wetted (sq-ft) Storage (cubic-feet) 41.50 392 0 41.60 400 18 41.70 409 35 41.80 417 53 41.90 426 71 42.00 434 88 42.10 442 109 42.20 451 129 42.30 459 149 42.40 468 169 42.50 476 190 42.60 484 210 42.70 493 230 42.80 501 251 42.90 510 271 43.00 518 291 43.10 526 312 43.20 535 332 43.30 543 352 43.40 552 373 43.50 560 393 43.60 568 413 43.70 577 433 43.80 585 454 43.90 594 474 44.00 602 494 44.10 610 515 44.20 619 535 44.30 627 555 44.40 636 576 44.50 644 596 44.60 652 616 44.70 661 637 44.80 669 657 44.90 678 677 45.00 686 697 45.10 694 718 45.20 703 738 45.30 711 758 45.40 720 779 45.50 728 799 45.60 736 819 45.70 745 840 45.80 753 860 45.90 762 880 46.00 770 901 46.10 778 921 46.20 787 941 46.30 795 961 46.40 804 982 46.50 812 1,002 46.60 820 1,022 Elevation (feet) Wetted (sq-ft) Storage (cubic-feet) 46.70 829 1,043 46.80 837 1,063 46.90 846 1,083 47.00 854 1,104 47.10 862 1,124 47.20 871 1,144 47.30 879 1,165 47.40 888 1,185 47.50 896 1,205 47.60 904 1,225 47.70 913 1,246 47.80 921 1,266 47.90 930 1,286 48.00 938 1,307 Type III 24-hr 10-year Rainfall=4.88"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 75HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Summary for Pond 2AP: Grassed Swale Leaching - M2 Inflow Area = 4.079 ac, 21.23% Impervious, Inflow Depth = 0.69" for 10-year event Inflow = 2.06 cfs @ 12.13 hrs, Volume= 0.234 af Outflow = 0.20 cfs @ 15.88 hrs, Volume= 0.234 af, Atten= 90%, Lag= 224.6 min Discarded = 0.20 cfs @ 15.88 hrs, Volume= 0.234 af Secondary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routed to Pond 2BP : (1) 70'x28' Leaching Facility - Two Rows of (5) 6'x6' Leach Pits, 14' O.C. with stone around Routing by Dyn-Stor-Ind method, Time Span= 0.00-27.99 hrs, dt= 0.03 hrs Peak Elev= 34.32' @ 15.88 hrs Surf.Area= 3,493 sf Storage= 4,199 cf Plug-Flow detention time= 249.1 min calculated for 0.234 af (100% of inflow) Center-of-Mass det. time= 249.1 min ( 1,159.2 - 910.1 ) Volume Invert Avail.Storage Storage Description #1 33.00' 6,696 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) 33.00 2,890 222.0 0 0 2,890 35.00 3,828 247.0 6,696 6,696 3,934 Device Routing Invert Outlet Devices #1 Discarded 33.00'2.410 in/hr Exfiltration over Wetted area Phase-In= 0.01' #2 Secondary 34.50'24.0" x 24.0" Horiz. Orifice/Grate C= 0.600 Limited to weir flow at low heads Discarded OutFlow Max=0.20 cfs @ 15.88 hrs HW=34.32' (Free Discharge) 1=Exfiltration (Exfiltration Controls 0.20 cfs) Secondary OutFlow Max=0.00 cfs @ 0.00 hrs HW=33.00' TW=26.00' (Dynamic Tailwater) 2=Orifice/Grate ( Controls 0.00 cfs) Type III 24-hr 10-year Rainfall=4.88"8807.Recharge(10.19.22) 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 2AP: Grassed Swale Leaching - M2 Inflow Outflow Discarded Secondary Hydrograph Time (hours) 26242220181614121086420Flow (cfs)2 1 0 Inflow Area=4.079 ac Peak Elev=34.32' Storage=4,199 cf 2.06 cfs 0.20 cfs 0.20 cfs 0.00 cfs Pond 2AP: Grassed Swale Leaching - M2 Total Discarded Secondary Stage-Discharge Discharge (cfs) 9876543210Elevation (feet)35 34 33 Exfiltration Orifice/Grate Type III 24-hr 10-year Rainfall=4.88"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 77HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Pond 2AP: Grassed Swale Leaching - M2 Surface Wetted Storage Stage-Area-Storage Storage (cubic-feet) 6,0005,0004,0003,0002,0001,0000 Surface/Horizontal/Wetted Area (sq-ft) 3,5003,0002,5002,0001,5001,0005000 Elevation (feet)35 34 33 Grassed Swale Type III 24-hr 10-year Rainfall=4.88"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 78HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Hydrograph for Pond 2AP: Grassed Swale Leaching - M2 Time (hours) Inflow (cfs) Storage (cubic-feet) Elevation (feet) Outflow (cfs) Discarded (cfs) Secondary (cfs) 0.00 0.00 0 33.00 0.00 0.00 0.00 0.60 0.00 0 33.00 0.00 0.00 0.00 1.20 0.00 0 33.00 0.00 0.00 0.00 1.80 0.00 0 33.00 0.00 0.00 0.00 2.40 0.00 0 33.00 0.00 0.00 0.00 3.00 0.00 0 33.00 0.00 0.00 0.00 3.60 0.00 0 33.00 0.00 0.00 0.00 4.20 0.00 0 33.00 0.00 0.00 0.00 4.80 0.00 0 33.00 0.00 0.00 0.00 5.40 0.00 0 33.00 0.00 0.00 0.00 6.00 0.00 0 33.00 0.00 0.00 0.00 6.60 0.00 0 33.00 0.00 0.00 0.00 7.20 0.00 0 33.00 0.00 0.00 0.00 7.80 0.00 0 33.00 0.00 0.00 0.00 8.40 0.00 0 33.00 0.00 0.00 0.00 9.00 0.00 0 33.00 0.00 0.00 0.00 9.60 0.00 0 33.00 0.00 0.00 0.00 10.20 0.00 0 33.00 0.00 0.00 0.00 10.80 0.00 0 33.00 0.00 0.00 0.00 11.40 0.00 0 33.00 0.00 0.00 0.00 12.00 0.58 76 33.03 0.16 0.16 0.00 12.60 0.68 2,659 33.86 0.19 0.19 0.00 13.20 0.39 3,315 34.06 0.19 0.19 0.00 13.80 0.34 3,693 34.17 0.19 0.19 0.00 14.40 0.29 3,940 34.24 0.20 0.20 0.00 15.00 0.26 4,104 34.29 0.20 0.20 0.00 15.60 0.22 4,189 34.31 0.20 0.20 0.00 16.20 0.18 4,186 34.31 0.20 0.20 0.00 16.80 0.16 4,126 34.30 0.20 0.20 0.00 17.40 0.14 4,028 34.27 0.20 0.20 0.00 18.00 0.12 3,889 34.23 0.20 0.20 0.00 18.60 0.11 3,720 34.18 0.19 0.19 0.00 19.20 0.11 3,542 34.13 0.19 0.19 0.00 19.80 0.10 3,355 34.07 0.19 0.19 0.00 20.40 0.10 3,160 34.01 0.19 0.19 0.00 21.00 0.09 2,958 33.95 0.19 0.19 0.00 21.60 0.09 2,751 33.89 0.19 0.19 0.00 22.20 0.08 2,538 33.83 0.18 0.18 0.00 22.80 0.08 2,319 33.76 0.18 0.18 0.00 23.40 0.07 2,093 33.69 0.18 0.18 0.00 24.00 0.07 1,861 33.62 0.18 0.18 0.00 24.60 0.00 1,507 33.50 0.18 0.18 0.00 25.20 0.00 1,132 33.38 0.17 0.17 0.00 25.80 0.00 765 33.26 0.17 0.17 0.00 26.40 0.00 404 33.14 0.17 0.17 0.00 27.00 0.00 52 33.02 0.16 0.16 0.00 27.60 0.00 0 33.00 0.00 0.00 0.00 Type III 24-hr 10-year Rainfall=4.88"8807.Recharge(10.19.22) 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-Discharge for Pond 2AP: Grassed Swale Leaching - M2 Elevation (feet) Discharge (cfs) Discarded (cfs) Secondary (cfs) 33.00 0.00 0.00 0.00 33.02 0.16 0.16 0.00 33.04 0.16 0.16 0.00 33.06 0.16 0.16 0.00 33.08 0.16 0.16 0.00 33.10 0.16 0.16 0.00 33.12 0.16 0.16 0.00 33.14 0.17 0.17 0.00 33.16 0.17 0.17 0.00 33.18 0.17 0.17 0.00 33.20 0.17 0.17 0.00 33.22 0.17 0.17 0.00 33.24 0.17 0.17 0.00 33.26 0.17 0.17 0.00 33.28 0.17 0.17 0.00 33.30 0.17 0.17 0.00 33.32 0.17 0.17 0.00 33.34 0.17 0.17 0.00 33.36 0.17 0.17 0.00 33.38 0.17 0.17 0.00 33.40 0.17 0.17 0.00 33.42 0.17 0.17 0.00 33.44 0.17 0.17 0.00 33.46 0.17 0.17 0.00 33.48 0.17 0.17 0.00 33.50 0.18 0.18 0.00 33.52 0.18 0.18 0.00 33.54 0.18 0.18 0.00 33.56 0.18 0.18 0.00 33.58 0.18 0.18 0.00 33.60 0.18 0.18 0.00 33.62 0.18 0.18 0.00 33.64 0.18 0.18 0.00 33.66 0.18 0.18 0.00 33.68 0.18 0.18 0.00 33.70 0.18 0.18 0.00 33.72 0.18 0.18 0.00 33.74 0.18 0.18 0.00 33.76 0.18 0.18 0.00 33.78 0.18 0.18 0.00 33.80 0.18 0.18 0.00 33.82 0.18 0.18 0.00 33.84 0.18 0.18 0.00 33.86 0.19 0.19 0.00 33.88 0.19 0.19 0.00 33.90 0.19 0.19 0.00 33.92 0.19 0.19 0.00 33.94 0.19 0.19 0.00 33.96 0.19 0.19 0.00 33.98 0.19 0.19 0.00 34.00 0.19 0.19 0.00 34.02 0.19 0.19 0.00 Elevation (feet) Discharge (cfs) Discarded (cfs) Secondary (cfs) 34.04 0.19 0.19 0.00 34.06 0.19 0.19 0.00 34.08 0.19 0.19 0.00 34.10 0.19 0.19 0.00 34.12 0.19 0.19 0.00 34.14 0.19 0.19 0.00 34.16 0.19 0.19 0.00 34.18 0.19 0.19 0.00 34.20 0.20 0.20 0.00 34.22 0.20 0.20 0.00 34.24 0.20 0.20 0.00 34.26 0.20 0.20 0.00 34.28 0.20 0.20 0.00 34.30 0.20 0.20 0.00 34.32 0.20 0.20 0.00 34.34 0.20 0.20 0.00 34.36 0.20 0.20 0.00 34.38 0.20 0.20 0.00 34.40 0.20 0.20 0.00 34.42 0.20 0.20 0.00 34.44 0.20 0.20 0.00 34.46 0.20 0.20 0.00 34.48 0.20 0.20 0.00 34.50 0.20 0.20 0.00 34.52 0.28 0.20 0.07 34.54 0.41 0.21 0.21 34.56 0.59 0.21 0.38 34.58 0.80 0.21 0.59 34.60 1.03 0.21 0.83 34.62 1.30 0.21 1.09 34.64 1.58 0.21 1.37 34.66 1.88 0.21 1.67 34.68 2.21 0.21 2.00 34.70 2.55 0.21 2.34 34.72 2.91 0.21 2.70 34.74 3.29 0.21 3.08 34.76 3.68 0.21 3.47 34.78 4.09 0.21 3.88 34.80 4.51 0.21 4.30 34.82 4.95 0.21 4.74 34.84 5.40 0.21 5.19 34.86 5.87 0.22 5.65 34.88 6.34 0.22 6.13 34.90 6.83 0.22 6.62 34.92 7.34 0.22 7.12 34.94 7.85 0.22 7.64 34.96 8.38 0.22 8.16 34.98 8.92 0.22 8.70 35.00 9.47 0.22 9.25 Type III 24-hr 10-year Rainfall=4.88"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 80HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 2AP: Grassed Swale Leaching - M2 Elevation (feet) Surface (sq-ft) Wetted (sq-ft) Storage (cubic-feet) 33.00 2,890 2,890 0 33.05 2,912 2,915 145 33.10 2,934 2,940 291 33.15 2,956 2,964 438 33.20 2,978 2,989 587 33.25 3,000 3,014 736 33.30 3,022 3,040 887 33.35 3,045 3,065 1,038 33.40 3,067 3,090 1,191 33.45 3,090 3,115 1,345 33.50 3,112 3,141 1,500 33.55 3,135 3,166 1,656 33.60 3,158 3,192 1,814 33.65 3,180 3,217 1,972 33.70 3,203 3,243 2,132 33.75 3,226 3,269 2,292 33.80 3,249 3,294 2,454 33.85 3,273 3,320 2,617 33.90 3,296 3,346 2,782 33.95 3,319 3,372 2,947 34.00 3,343 3,398 3,114 34.05 3,366 3,424 3,281 34.10 3,390 3,451 3,450 34.15 3,413 3,477 3,620 34.20 3,437 3,503 3,791 34.25 3,461 3,530 3,964 34.30 3,485 3,556 4,138 34.35 3,509 3,583 4,312 34.40 3,533 3,609 4,488 34.45 3,557 3,636 4,666 34.50 3,581 3,663 4,844 34.55 3,605 3,690 5,024 34.60 3,630 3,717 5,205 34.65 3,654 3,744 5,387 34.70 3,679 3,771 5,570 34.75 3,704 3,798 5,755 34.80 3,728 3,825 5,940 34.85 3,753 3,852 6,127 34.90 3,778 3,879 6,316 34.95 3,803 3,907 6,505 35.00 3,828 3,934 6,696 Type III 24-hr 10-year Rainfall=4.88"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 81HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Summary for Pond 2AR: (7) CB's in Pavement Inflow Area = 2.859 ac, 27.01% Impervious, Inflow Depth = 0.86" for 10-year event Inflow = 2.06 cfs @ 12.13 hrs, Volume= 0.206 af Outflow = 2.06 cfs @ 12.13 hrs, Volume= 0.206 af, Atten= 0%, Lag= 0.0 min Primary = 2.06 cfs @ 12.13 hrs, Volume= 0.206 af Routed to Pond 2AP : Grassed Swale Leaching - M2 Routing by Dyn-Stor-Ind method, Time Span= 0.00-27.99 hrs, dt= 0.03 hrs Peak Elev= 36.00' @ 12.13 hrs Flood Elev= 38.20' Device Routing Invert Outlet Devices #1 Primary 35.70'12.0" Round Culvert X 7.00 L= 50.0' CPP, projecting, no headwall, Ke= 0.900 Inlet / Outlet Invert= 35.70' / 35.00' S= 0.0140 '/' Cc= 0.900 n= 0.020 Corrugated PE, corrugated interior, Flow Area= 0.79 sf Primary OutFlow Max=2.03 cfs @ 12.13 hrs HW=36.00' TW=33.23' (Dynamic Tailwater) 1=Culvert (Barrel Controls 2.03 cfs @ 2.19 fps) Pond 2AR: (7) CB's in Pavement Inflow Primary Hydrograph Time (hours) 26242220181614121086420Flow (cfs)2 1 0 Inflow Area=2.859 ac Peak Elev=36.00' 12.0" Round Culvert x 7.00 n=0.020 L=50.0' S=0.0140 '/' 2.06 cfs 2.06 cfs Type III 24-hr 10-year Rainfall=4.88"8807.Recharge(10.19.22) 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 2AR: (7) CB's in Pavement Primary Stage-Discharge Discharge (cfs) 26242220181614121086420Elevation (feet)38 37 36 Culvert Pond 2AR: (7) CB's in Pavement Storage Stage-Area-Storage Storage (acre-feet) 0Elevation (feet)38 37 36 Flood Elevation Type III 24-hr 10-year Rainfall=4.88"8807.Recharge(10.19.22) 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 2AR: (7) CB's in Pavement Time (hours) Inflow (cfs) Elevation (feet) Primary (cfs) 0.00 0.00 35.70 0.00 0.30 0.00 35.70 0.00 0.60 0.00 35.70 0.00 0.90 0.00 35.70 0.00 1.20 0.00 35.70 0.00 1.50 0.00 35.70 0.00 1.80 0.00 35.70 0.00 2.10 0.00 35.70 0.00 2.40 0.00 35.70 0.00 2.70 0.00 35.70 0.00 3.00 0.00 35.70 0.00 3.30 0.00 35.70 0.00 3.60 0.00 35.70 0.00 3.90 0.00 35.70 0.00 4.20 0.00 35.70 0.00 4.50 0.00 35.70 0.00 4.80 0.00 35.70 0.00 5.10 0.00 35.70 0.00 5.40 0.00 35.70 0.00 5.70 0.00 35.70 0.00 6.00 0.00 35.70 0.00 6.30 0.00 35.70 0.00 6.60 0.00 35.70 0.00 6.90 0.00 35.70 0.00 7.20 0.00 35.70 0.00 7.50 0.00 35.70 0.00 7.80 0.00 35.70 0.00 8.10 0.00 35.70 0.00 8.40 0.00 35.70 0.00 8.70 0.00 35.70 0.00 9.00 0.00 35.70 0.00 9.30 0.00 35.70 0.00 9.60 0.00 35.70 0.00 9.90 0.00 35.70 0.00 10.20 0.00 35.70 0.00 10.50 0.00 35.70 0.00 10.80 0.00 35.70 0.00 11.10 0.00 35.70 0.00 11.40 0.00 35.70 0.00 11.70 0.00 35.70 0.00 12.00 0.58 35.86 0.58 12.30 1.42 35.95 1.42 12.60 0.61 35.86 0.61 12.90 0.43 35.84 0.43 13.20 0.34 35.82 0.34 13.50 0.32 35.82 0.32 13.80 0.29 35.82 0.29 14.10 0.26 35.81 0.26 14.40 0.25 35.81 0.25 14.70 0.23 35.80 0.23 15.00 0.22 35.80 0.22 15.30 0.20 35.80 0.20 Time (hours) Inflow (cfs) Elevation (feet) Primary (cfs) 15.60 0.18 35.79 0.18 15.90 0.17 35.79 0.17 16.20 0.15 35.78 0.15 16.50 0.14 35.78 0.14 16.80 0.13 35.78 0.13 17.10 0.13 35.78 0.13 17.40 0.12 35.78 0.12 17.70 0.11 35.77 0.11 18.00 0.10 35.77 0.10 18.30 0.10 35.77 0.10 18.60 0.09 35.77 0.09 18.90 0.09 35.77 0.09 19.20 0.09 35.77 0.09 19.50 0.09 35.77 0.09 19.80 0.08 35.76 0.08 20.10 0.08 35.76 0.08 20.40 0.08 35.76 0.08 20.70 0.08 35.76 0.08 21.00 0.08 35.76 0.08 21.30 0.07 35.76 0.07 21.60 0.07 35.76 0.07 21.90 0.07 35.76 0.07 22.20 0.07 35.76 0.07 22.50 0.07 35.76 0.07 22.80 0.07 35.76 0.07 23.10 0.06 35.76 0.06 23.40 0.06 35.76 0.06 23.70 0.06 35.75 0.06 24.00 0.06 35.75 0.06 24.30 0.00 35.71 0.00 24.60 0.00 35.70 0.00 24.90 0.00 35.70 0.00 25.20 0.00 35.70 0.00 25.50 0.00 35.70 0.00 25.80 0.00 35.70 0.00 26.10 0.00 35.70 0.00 26.40 0.00 35.70 0.00 26.70 0.00 35.70 0.00 27.00 0.00 35.70 0.00 27.30 0.00 35.70 0.00 27.60 0.00 35.70 0.00 27.90 0.00 35.70 0.00 Type III 24-hr 10-year Rainfall=4.88"8807.Recharge(10.19.22) 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 2AR: (7) CB's in Pavement Elevation (feet) Primary (cfs) 35.70 0.00 35.72 0.01 35.74 0.03 35.76 0.07 35.78 0.13 35.80 0.22 35.82 0.32 35.84 0.44 35.86 0.57 35.88 0.73 35.90 0.90 35.92 1.10 35.94 1.30 35.96 1.53 35.98 1.77 36.00 2.02 36.02 2.29 36.04 2.58 36.06 2.87 36.08 3.18 36.10 3.49 36.12 3.82 36.14 4.15 36.16 4.50 36.18 4.86 36.20 5.22 36.22 5.60 36.24 5.98 36.26 6.37 36.28 6.77 36.30 7.17 36.32 7.58 36.34 7.99 36.36 8.41 36.38 8.82 36.40 9.24 36.42 9.67 36.44 10.09 36.46 10.51 36.48 10.92 36.50 11.34 36.52 11.74 36.54 12.15 36.56 12.54 36.58 12.92 36.60 13.29 36.62 13.64 36.64 13.98 36.66 14.28 36.68 14.56 36.70 14.78 36.72 15.07 Elevation (feet) Primary (cfs) 36.74 15.36 36.76 15.64 36.78 15.92 36.80 16.19 36.82 16.46 36.84 16.72 36.86 16.98 36.88 17.23 36.90 17.49 36.92 17.73 36.94 17.98 36.96 18.22 36.98 18.46 37.00 18.69 37.02 18.92 37.04 18.99 37.06 19.17 37.08 19.35 37.10 19.53 37.12 19.70 37.14 19.88 37.16 20.05 37.18 20.22 37.20 20.39 37.22 20.56 37.24 20.73 37.26 20.90 37.28 21.06 37.30 21.23 37.32 21.39 37.34 21.55 37.36 21.71 37.38 21.87 37.40 22.03 37.42 22.19 37.44 22.34 37.46 22.50 37.48 22.65 37.50 22.80 37.52 22.95 37.54 23.10 37.56 23.25 37.58 23.40 37.60 23.55 37.62 23.70 37.64 23.84 37.66 23.99 37.68 24.13 37.70 24.27 37.72 24.42 37.74 24.56 37.76 24.70 Elevation (feet) Primary (cfs) 37.78 24.84 37.80 24.98 37.82 25.12 37.84 25.25 37.86 25.39 37.88 25.53 37.90 25.66 37.92 25.80 37.94 25.93 37.96 26.06 37.98 26.20 38.00 26.33 38.02 26.46 38.04 26.59 38.06 26.72 38.08 26.85 38.10 26.98 38.12 27.11 38.14 27.24 38.16 27.36 38.18 27.49 38.20 27.61 Type III 24-hr 10-year Rainfall=4.88"8807.Recharge(10.19.22) 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 2AR: (7) CB's in Pavement Elevation (feet) Storage (acre-feet) 35.70 0.000 35.72 0.000 35.74 0.000 35.76 0.000 35.78 0.000 35.80 0.000 35.82 0.000 35.84 0.000 35.86 0.000 35.88 0.000 35.90 0.000 35.92 0.000 35.94 0.000 35.96 0.000 35.98 0.000 36.00 0.000 36.02 0.000 36.04 0.000 36.06 0.000 36.08 0.000 36.10 0.000 36.12 0.000 36.14 0.000 36.16 0.000 36.18 0.000 36.20 0.000 36.22 0.000 36.24 0.000 36.26 0.000 36.28 0.000 36.30 0.000 36.32 0.000 36.34 0.000 36.36 0.000 36.38 0.000 36.40 0.000 36.42 0.000 36.44 0.000 36.46 0.000 36.48 0.000 36.50 0.000 36.52 0.000 36.54 0.000 36.56 0.000 36.58 0.000 36.60 0.000 36.62 0.000 36.64 0.000 36.66 0.000 36.68 0.000 36.70 0.000 36.72 0.000 Elevation (feet) Storage (acre-feet) 36.74 0.000 36.76 0.000 36.78 0.000 36.80 0.000 36.82 0.000 36.84 0.000 36.86 0.000 36.88 0.000 36.90 0.000 36.92 0.000 36.94 0.000 36.96 0.000 36.98 0.000 37.00 0.000 37.02 0.000 37.04 0.000 37.06 0.000 37.08 0.000 37.10 0.000 37.12 0.000 37.14 0.000 37.16 0.000 37.18 0.000 37.20 0.000 37.22 0.000 37.24 0.000 37.26 0.000 37.28 0.000 37.30 0.000 37.32 0.000 37.34 0.000 37.36 0.000 37.38 0.000 37.40 0.000 37.42 0.000 37.44 0.000 37.46 0.000 37.48 0.000 37.50 0.000 37.52 0.000 37.54 0.000 37.56 0.000 37.58 0.000 37.60 0.000 37.62 0.000 37.64 0.000 37.66 0.000 37.68 0.000 37.70 0.000 37.72 0.000 37.74 0.000 37.76 0.000 Elevation (feet) Storage (acre-feet) 37.78 0.000 37.80 0.000 37.82 0.000 37.84 0.000 37.86 0.000 37.88 0.000 37.90 0.000 37.92 0.000 37.94 0.000 37.96 0.000 37.98 0.000 38.00 0.000 38.02 0.000 38.04 0.000 38.06 0.000 38.08 0.000 38.10 0.000 38.12 0.000 38.14 0.000 38.16 0.000 38.18 0.000 38.20 0.000 Type III 24-hr 10-year Rainfall=4.88"8807.Recharge(10.19.22) 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 2BP: (1) 70'x28' Leaching Facility - Two Rows of (5) 6'x6' Leach Pits, 14' O.C. with stone around 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 Discarded = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-27.99 hrs, dt= 0.03 hrs Peak Elev= 26.00' @ 0.00 hrs Surf.Area= 1,960 sf Storage= 0 cf Plug-Flow detention time= (not calculated: initial storage exceeds outflow) Center-of-Mass det. time= (not calculated: no inflow) Volume Invert Avail.Storage Storage Description #1 26.00' 4,837 cf 28.00'W x 70.00'L x 6.50'H Prismatoid 12,740 cf Overall - 1,991 cf Embedded = 10,749 cf x 45.0% Voids #2 26.50' 1,696 cf 6.00'D x 6.00'H Vertical Cone/Cylinder x 10 Inside #1 1,991 cf Overall - 3.0" Wall Thickness = 1,696 cf 6,534 cf Total Available Storage Device Routing Invert Outlet Devices #1 Discarded 26.00'8.270 in/hr Exfiltration over Wetted area Phase-In= 0.01' Discarded OutFlow Max=0.00 cfs @ 0.00 hrs HW=26.00' (Free Discharge) 1=Exfiltration ( Controls 0.00 cfs) Pond 2BP: (1) 70'x28' Leaching Facility - Two Rows of (5) 6'x6' Leach Pits, 14' O.C. with stone around Inflow Discarded Hydrograph Time (hours) 26242220181614121086420Flow (cfs)1 0 Peak Elev=26.00' Storage=0 cf 0.00 cfs 0.00 cfs Type III 24-hr 10-year Rainfall=4.88"8807.Recharge(10.19.22) 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 2BP: (1) 70'x28' Leaching Facility - Two Rows of (5) 6'x6' Leach Pits, 14' O.C. with stone around Discarded Stage-Discharge Discharge (cfs) 0.60.550.50.450.40.350.30.250.20.150.10.050Elevation (feet)32 31 30 29 28 27 26 Exfiltration Pond 2BP: (1) 70'x28' Leaching Facility - Two Rows of (5) 6'x6' Leach Pits, 14' O.C. with stone around Wetted Storage Stage-Area-Storage Storage (cubic-feet) 6,0005,0004,0003,0002,0001,0000 Surface/Horizontal/Wetted Area (sq-ft) 3,2003,0002,8002,6002,4002,2002,0001,8001,6001,4001,2001,0008006004002000 Elevation (feet)32 31 30 29 28 27 26 Prismatoid Vertical Cone/Cylinder Type III 24-hr 10-year Rainfall=4.88"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 88HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Hydrograph for Pond 2BP: (1) 70'x28' Leaching Facility - Two Rows of (5) 6'x6' Leach Pits, 14' O.C. with stone around Time (hours) Inflow (cfs) Elevation (feet) Discarded (cfs) 0.00 0.00 26.00 0.00 0.30 0.00 26.00 0.00 0.60 0.00 26.00 0.00 0.90 0.00 26.00 0.00 1.20 0.00 26.00 0.00 1.50 0.00 26.00 0.00 1.80 0.00 26.00 0.00 2.10 0.00 26.00 0.00 2.40 0.00 26.00 0.00 2.70 0.00 26.00 0.00 3.00 0.00 26.00 0.00 3.30 0.00 26.00 0.00 3.60 0.00 26.00 0.00 3.90 0.00 26.00 0.00 4.20 0.00 26.00 0.00 4.50 0.00 26.00 0.00 4.80 0.00 26.00 0.00 5.10 0.00 26.00 0.00 5.40 0.00 26.00 0.00 5.70 0.00 26.00 0.00 6.00 0.00 26.00 0.00 6.30 0.00 26.00 0.00 6.60 0.00 26.00 0.00 6.90 0.00 26.00 0.00 7.20 0.00 26.00 0.00 7.50 0.00 26.00 0.00 7.80 0.00 26.00 0.00 8.10 0.00 26.00 0.00 8.40 0.00 26.00 0.00 8.70 0.00 26.00 0.00 9.00 0.00 26.00 0.00 9.30 0.00 26.00 0.00 9.60 0.00 26.00 0.00 9.90 0.00 26.00 0.00 10.20 0.00 26.00 0.00 10.50 0.00 26.00 0.00 10.80 0.00 26.00 0.00 11.10 0.00 26.00 0.00 11.40 0.00 26.00 0.00 11.70 0.00 26.00 0.00 12.00 0.00 26.00 0.00 12.30 0.00 26.00 0.00 12.60 0.00 26.00 0.00 12.90 0.00 26.00 0.00 13.20 0.00 26.00 0.00 13.50 0.00 26.00 0.00 13.80 0.00 26.00 0.00 14.10 0.00 26.00 0.00 14.40 0.00 26.00 0.00 14.70 0.00 26.00 0.00 15.00 0.00 26.00 0.00 15.30 0.00 26.00 0.00 Time (hours) Inflow (cfs) Elevation (feet) Discarded (cfs) 15.60 0.00 26.00 0.00 15.90 0.00 26.00 0.00 16.20 0.00 26.00 0.00 16.50 0.00 26.00 0.00 16.80 0.00 26.00 0.00 17.10 0.00 26.00 0.00 17.40 0.00 26.00 0.00 17.70 0.00 26.00 0.00 18.00 0.00 26.00 0.00 18.30 0.00 26.00 0.00 18.60 0.00 26.00 0.00 18.90 0.00 26.00 0.00 19.20 0.00 26.00 0.00 19.50 0.00 26.00 0.00 19.80 0.00 26.00 0.00 20.10 0.00 26.00 0.00 20.40 0.00 26.00 0.00 20.70 0.00 26.00 0.00 21.00 0.00 26.00 0.00 21.30 0.00 26.00 0.00 21.60 0.00 26.00 0.00 21.90 0.00 26.00 0.00 22.20 0.00 26.00 0.00 22.50 0.00 26.00 0.00 22.80 0.00 26.00 0.00 23.10 0.00 26.00 0.00 23.40 0.00 26.00 0.00 23.70 0.00 26.00 0.00 24.00 0.00 26.00 0.00 24.30 0.00 26.00 0.00 24.60 0.00 26.00 0.00 24.90 0.00 26.00 0.00 25.20 0.00 26.00 0.00 25.50 0.00 26.00 0.00 25.80 0.00 26.00 0.00 26.10 0.00 26.00 0.00 26.40 0.00 26.00 0.00 26.70 0.00 26.00 0.00 27.00 0.00 26.00 0.00 27.30 0.00 26.00 0.00 27.60 0.00 26.00 0.00 27.90 0.00 26.00 0.00 Type III 24-hr 10-year Rainfall=4.88"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 89HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Stage-Discharge for Pond 2BP: (1) 70'x28' Leaching Facility - Two Rows of (5) 6'x6' Leach Pits, 14' O.C. with stone around Elevation (feet) Discarded (cfs) 26.00 0.00 26.05 0.38 26.10 0.38 26.15 0.38 26.20 0.38 26.25 0.38 26.30 0.39 26.35 0.39 26.40 0.39 26.45 0.39 26.50 0.39 26.55 0.40 26.60 0.40 26.65 0.40 26.70 0.40 26.75 0.40 26.80 0.41 26.85 0.41 26.90 0.41 26.95 0.41 27.00 0.41 27.05 0.41 27.10 0.42 27.15 0.42 27.20 0.42 27.25 0.42 27.30 0.42 27.35 0.43 27.40 0.43 27.45 0.43 27.50 0.43 27.55 0.43 27.60 0.44 27.65 0.44 27.70 0.44 27.75 0.44 27.80 0.44 27.85 0.44 27.90 0.45 27.95 0.45 28.00 0.45 28.05 0.45 28.10 0.45 28.15 0.46 28.20 0.46 28.25 0.46 28.30 0.46 28.35 0.46 28.40 0.47 28.45 0.47 28.50 0.47 28.55 0.47 Elevation (feet) Discarded (cfs) 28.60 0.47 28.65 0.47 28.70 0.48 28.75 0.48 28.80 0.48 28.85 0.48 28.90 0.48 28.95 0.49 29.00 0.49 29.05 0.49 29.10 0.49 29.15 0.49 29.20 0.50 29.25 0.50 29.30 0.50 29.35 0.50 29.40 0.50 29.45 0.50 29.50 0.51 29.55 0.51 29.60 0.51 29.65 0.51 29.70 0.51 29.75 0.52 29.80 0.52 29.85 0.52 29.90 0.52 29.95 0.52 30.00 0.53 30.05 0.53 30.10 0.53 30.15 0.53 30.20 0.53 30.25 0.53 30.30 0.54 30.35 0.54 30.40 0.54 30.45 0.54 30.50 0.54 30.55 0.55 30.60 0.55 30.65 0.55 30.70 0.55 30.75 0.55 30.80 0.56 30.85 0.56 30.90 0.56 30.95 0.56 31.00 0.56 31.05 0.56 31.10 0.57 31.15 0.57 Elevation (feet) Discarded (cfs) 31.20 0.57 31.25 0.57 31.30 0.57 31.35 0.58 31.40 0.58 31.45 0.58 31.50 0.58 31.55 0.58 31.60 0.59 31.65 0.59 31.70 0.59 31.75 0.59 31.80 0.59 31.85 0.59 31.90 0.60 31.95 0.60 32.00 0.60 32.05 0.60 32.10 0.60 32.15 0.61 32.20 0.61 32.25 0.61 32.30 0.61 32.35 0.61 32.40 0.62 32.45 0.62 32.50 0.62 Type III 24-hr 10-year Rainfall=4.88"8807.Recharge(10.19.22) 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-Area-Storage for Pond 2BP: (1) 70'x28' Leaching Facility - Two Rows of (5) 6'x6' Leach Pits, 14' O.C. with stone around Elevation (feet) Wetted (sq-ft) Storage (cubic-feet) 26.00 1,960 0 26.10 1,980 88 26.20 1,999 176 26.30 2,019 265 26.40 2,038 353 26.50 2,058 441 26.60 2,078 543 26.70 2,097 644 26.80 2,117 746 26.90 2,136 847 27.00 2,156 949 27.10 2,176 1,050 27.20 2,195 1,152 27.30 2,215 1,253 27.40 2,234 1,355 27.50 2,254 1,456 27.60 2,274 1,558 27.70 2,293 1,660 27.80 2,313 1,761 27.90 2,332 1,863 28.00 2,352 1,964 28.10 2,372 2,066 28.20 2,391 2,167 28.30 2,411 2,269 28.40 2,430 2,370 28.50 2,450 2,472 28.60 2,470 2,573 28.70 2,489 2,675 28.80 2,509 2,776 28.90 2,528 2,878 29.00 2,548 2,980 29.10 2,568 3,081 29.20 2,587 3,183 29.30 2,607 3,284 29.40 2,626 3,386 29.50 2,646 3,487 29.60 2,666 3,589 29.70 2,685 3,690 29.80 2,705 3,792 29.90 2,724 3,893 30.00 2,744 3,995 30.10 2,764 4,097 30.20 2,783 4,198 30.30 2,803 4,300 30.40 2,822 4,401 30.50 2,842 4,503 30.60 2,862 4,604 30.70 2,881 4,706 30.80 2,901 4,807 30.90 2,920 4,909 31.00 2,940 5,010 31.10 2,960 5,112 Elevation (feet) Wetted (sq-ft) Storage (cubic-feet) 31.20 2,979 5,213 31.30 2,999 5,315 31.40 3,018 5,417 31.50 3,038 5,518 31.60 3,058 5,620 31.70 3,077 5,721 31.80 3,097 5,823 31.90 3,116 5,924 32.00 3,136 6,026 32.10 3,156 6,127 32.20 3,175 6,229 32.30 3,195 6,330 32.40 3,214 6,432 32.50 3,234 6,534 Type III 24-hr 10-year Rainfall=4.88"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 91HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Summary for Pond 3P: (2) 15.5' x 4.33' x 2.5' Leaching Facilities (per Dwelling) - Each with (2) Cultec Recharger 330XLHD Units (Stoneless) Inflow Area = 0.030 ac,100.00% Impervious, Inflow Depth = 4.64" for 10-year event Inflow = 0.14 cfs @ 12.08 hrs, Volume= 0.011 af Outflow = 0.03 cfs @ 12.50 hrs, Volume= 0.011 af, Atten= 79%, Lag= 24.7 min Discarded = 0.03 cfs @ 12.50 hrs, Volume= 0.011 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-27.99 hrs, dt= 0.03 hrs Peak Elev= 50.99' @ 12.50 hrs Surf.Area= 112 sf Storage= 117 cf Plug-Flow detention time= 21.3 min calculated for 0.011 af (100% of inflow) Center-of-Mass det. time= 21.3 min ( 769.7 - 748.4 ) Volume Invert Avail.Storage Storage Description #1 50.00' 231 cf Cultec R-330XLHD x 4 Effective Size= 47.8"W x 30.0"H => 7.45 sf x 7.00'L = 52.2 cf Overall Size= 52.0"W x 30.5"H x 8.50'L with 1.50' Overlap Row Length Adjustment= +1.50' x 7.45 sf x 2 rows Device Routing Invert Outlet Devices #1 Discarded 50.00'8.270 in/hr Exfiltration over Wetted area Phase-In= 0.01' Discarded OutFlow Max=0.03 cfs @ 12.50 hrs HW=50.99' (Free Discharge) 1=Exfiltration (Exfiltration Controls 0.03 cfs) Pond 3P: (2) 15.5' x 4.33' x 2.5' Leaching Facilities (per Dwelling) - Each with (2) Cultec Recharger 330XLHD Units (Stoneless) Inflow Discarded Hydrograph Time (hours) 26242220181614121086420Flow (cfs)0.15 0.14 0.13 0.12 0.11 0.1 0.09 0.08 0.07 0.06 0.05 0.04 0.03 0.02 0.01 0 Inflow Area=0.030 ac Peak Elev=50.99' Storage=117 cf 0.14 cfs 0.03 cfs Type III 24-hr 10-year Rainfall=4.88"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 92HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Pond 3P: (2) 15.5' x 4.33' x 2.5' Leaching Facilities (per Dwelling) - Each with (2) Cultec Recharger 330XLHD Units (Stoneless) Discarded Stage-Discharge Discharge (cfs) 0.040.0350.030.0250.020.0150.010.0050Elevation (feet)52 51 50 Exfiltration Pond 3P: (2) 15.5' x 4.33' x 2.5' Leaching Facilities (per Dwelling) - Each with (2) Cultec Recharger 330XLHD Units (Stoneless) Wetted Storage Stage-Area-Storage Storage (cubic-feet) 220200180160140120100806040200 Surface/Horizontal/Wetted Area (sq-ft) 220200180160140120100806040200 Elevation (feet)52 51 50 Cultec R-330XLHD Type III 24-hr 10-year Rainfall=4.88"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 93HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Hydrograph for Pond 3P: (2) 15.5' x 4.33' x 2.5' Leaching Facilities (per Dwelling) - Each with (2) Cultec Recharger 330XLHD Units (Stoneless) Time (hours) Inflow (cfs) Storage (cubic-feet) Elevation (feet) Discarded (cfs) 0.00 0.00 0 50.00 0.00 0.60 0.00 0 50.00 0.00 1.20 0.00 0 50.00 0.00 1.80 0.00 0 50.00 0.00 2.40 0.00 0 50.00 0.00 3.00 0.00 0 50.00 0.00 3.60 0.00 0 50.00 0.00 4.20 0.00 0 50.00 0.00 4.80 0.00 0 50.00 0.00 5.40 0.00 0 50.00 0.00 6.00 0.00 0 50.00 0.00 6.60 0.00 0 50.00 0.00 7.20 0.00 0 50.00 0.00 7.80 0.00 0 50.00 0.00 8.40 0.00 0 50.00 0.00 9.00 0.01 0 50.00 0.00 9.60 0.01 0 50.00 0.01 10.20 0.01 0 50.00 0.01 10.80 0.01 0 50.00 0.01 11.40 0.01 1 50.01 0.01 12.00 0.09 31 50.26 0.03 12.60 0.02 115 50.97 0.03 13.20 0.01 81 50.68 0.03 13.80 0.01 43 50.36 0.03 14.40 0.01 5 50.04 0.02 15.00 0.01 0 50.00 0.01 15.60 0.00 0 50.00 0.00 16.20 0.00 0 50.00 0.00 16.80 0.00 0 50.00 0.00 17.40 0.00 0 50.00 0.00 18.00 0.00 0 50.00 0.00 18.60 0.00 0 50.00 0.00 19.20 0.00 0 50.00 0.00 19.80 0.00 0 50.00 0.00 20.40 0.00 0 50.00 0.00 21.00 0.00 0 50.00 0.00 21.60 0.00 0 50.00 0.00 22.20 0.00 0 50.00 0.00 22.80 0.00 0 50.00 0.00 23.40 0.00 0 50.00 0.00 24.00 0.00 0 50.00 0.00 24.60 0.00 0 50.00 0.00 25.20 0.00 0 50.00 0.00 25.80 0.00 0 50.00 0.00 26.40 0.00 0 50.00 0.00 27.00 0.00 0 50.00 0.00 27.60 0.00 0 50.00 0.00 Type III 24-hr 10-year Rainfall=4.88"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 94HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Stage-Discharge for Pond 3P: (2) 15.5' x 4.33' x 2.5' Leaching Facilities (per Dwelling) - Each with (2) Cultec Recharger 330XLHD Units (Stoneless) Elevation (feet) Discarded (cfs) 50.00 0.00 50.02 0.02 50.04 0.02 50.06 0.02 50.08 0.02 50.10 0.02 50.12 0.02 50.14 0.02 50.16 0.02 50.18 0.02 50.20 0.02 50.22 0.02 50.24 0.03 50.26 0.03 50.28 0.03 50.30 0.03 50.32 0.03 50.34 0.03 50.36 0.03 50.38 0.03 50.40 0.03 50.42 0.03 50.44 0.03 50.46 0.03 50.48 0.03 50.50 0.03 50.52 0.03 50.54 0.03 50.56 0.03 50.58 0.03 50.60 0.03 50.62 0.03 50.64 0.03 50.66 0.03 50.68 0.03 50.70 0.03 50.72 0.03 50.74 0.03 50.76 0.03 50.78 0.03 50.80 0.03 50.82 0.03 50.84 0.03 50.86 0.03 50.88 0.03 50.90 0.03 50.92 0.03 50.94 0.03 50.96 0.03 50.98 0.03 51.00 0.03 51.02 0.03 Elevation (feet) Discarded (cfs) 51.04 0.03 51.06 0.03 51.08 0.03 51.10 0.03 51.12 0.03 51.14 0.03 51.16 0.03 51.18 0.03 51.20 0.03 51.22 0.03 51.24 0.03 51.26 0.03 51.28 0.03 51.30 0.03 51.32 0.03 51.34 0.03 51.36 0.03 51.38 0.03 51.40 0.03 51.42 0.03 51.44 0.03 51.46 0.03 51.48 0.03 51.50 0.03 51.52 0.03 51.54 0.03 51.56 0.03 51.58 0.03 51.60 0.03 51.62 0.03 51.64 0.03 51.66 0.03 51.68 0.03 51.70 0.03 51.72 0.03 51.74 0.03 51.76 0.04 51.78 0.04 51.80 0.04 51.82 0.04 51.84 0.04 51.86 0.04 51.88 0.04 51.90 0.04 51.92 0.04 51.94 0.04 51.96 0.04 51.98 0.04 52.00 0.04 52.02 0.04 52.04 0.04 52.06 0.04 Elevation (feet) Discarded (cfs) 52.08 0.04 52.10 0.04 52.12 0.04 52.14 0.04 52.16 0.04 52.18 0.04 52.20 0.04 52.22 0.04 52.24 0.04 52.26 0.04 52.28 0.04 52.30 0.04 52.32 0.04 52.34 0.04 52.36 0.04 52.38 0.04 52.40 0.04 52.42 0.04 52.44 0.04 52.46 0.04 52.48 0.04 52.50 0.04 Type III 24-hr 10-year Rainfall=4.88"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 95HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 3P: (2) 15.5' x 4.33' x 2.5' Leaching Facilities (per Dwelling) - Each with (2) Cultec Recharger 330XLHD Units (Stoneless) Elevation (feet) Wetted (sq-ft) Storage (cubic-feet) 50.00 124 0 50.05 125 6 50.10 127 12 50.15 128 18 50.20 130 24 50.25 131 30 50.30 133 37 50.35 134 43 50.40 136 49 50.45 138 55 50.50 139 61 50.55 141 66 50.60 142 72 50.65 144 78 50.70 146 84 50.75 148 90 50.80 149 95 50.85 151 101 50.90 152 107 50.95 154 112 51.00 155 118 51.05 157 123 51.10 158 129 51.15 160 134 51.20 162 140 51.25 163 145 51.30 165 151 51.35 167 156 51.40 169 161 51.45 171 166 51.50 173 171 51.55 175 175 51.60 177 180 51.65 179 185 51.70 181 189 51.75 183 193 51.80 185 197 51.85 187 201 51.90 189 205 51.95 192 209 52.00 194 212 52.05 197 216 52.10 200 219 52.15 203 222 52.20 207 224 52.25 211 226 52.30 215 228 52.35 219 229 52.40 223 230 52.45 227 231 52.50 232 231 Type III 24-hr 25-year Rainfall=5.84"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 96HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Summary for Subcatchment 1AS: Runoff into Catch Basins - M1 Runoff = 0.75 cfs @ 12.10 hrs, Volume= 0.062 af, Depth= 1.35" Routed to Pond 1AR : (2) CB's in Pavement 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 6,286 98 Paved parking, HSG A 15,144 39 >75% Grass cover, Good, HSG A 2,500 36 Woods, Fair, HSG A 23,930 54 Weighted Average 17,644 73.73% Pervious Area 6,286 26.27% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.2 50 0.0600 0.16 Sheet Flow, Grass: Dense n= 0.240 P2= 3.36" 0.5 50 0.0600 1.71 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 0.3 60 0.0300 3.52 Shallow Concentrated Flow, Paved Kv= 20.3 fps 6.0 160 Total Subcatchment 1AS: Runoff into Catch Basins - M1 Runoff Hydrograph Time (hours) 26242220181614121086420Flow (cfs)0.8 0.75 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=23,930 sf Runoff Volume=0.062 af Runoff Depth=1.35" Flow Length=160' Tc=6.0 min CN=54 0.75 cfs Type III 24-hr 25-year Rainfall=5.84"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 97HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Hydrograph for Subcatchment 1AS: Runoff into Catch Basins - M1 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 0.02 12.00 2.92 0.15 0.33 12.30 3.86 0.43 0.42 12.60 4.17 0.55 0.16 12.90 4.33 0.62 0.12 13.20 4.46 0.67 0.10 13.50 4.58 0.72 0.09 13.80 4.68 0.77 0.08 14.10 4.76 0.81 0.07 14.40 4.85 0.85 0.07 14.70 4.92 0.88 0.06 15.00 4.99 0.91 0.06 15.30 5.05 0.94 0.05 Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 15.60 5.11 0.97 0.05 15.90 5.16 1.00 0.04 16.20 5.20 1.02 0.04 16.50 5.25 1.04 0.04 16.80 5.29 1.06 0.04 17.10 5.32 1.08 0.03 17.40 5.36 1.10 0.03 17.70 5.39 1.11 0.03 18.00 5.42 1.13 0.03 18.30 5.45 1.14 0.03 18.60 5.47 1.16 0.03 18.90 5.50 1.17 0.02 19.20 5.53 1.18 0.02 19.50 5.55 1.20 0.02 19.80 5.57 1.21 0.02 20.10 5.60 1.22 0.02 20.40 5.62 1.23 0.02 20.70 5.64 1.24 0.02 21.00 5.66 1.26 0.02 21.30 5.68 1.27 0.02 21.60 5.70 1.28 0.02 21.90 5.72 1.29 0.02 22.20 5.74 1.30 0.02 22.50 5.76 1.31 0.02 22.80 5.78 1.32 0.02 23.10 5.79 1.33 0.02 23.40 5.81 1.34 0.02 23.70 5.82 1.34 0.02 24.00 5.84 1.35 0.02 24.30 5.84 1.35 0.00 24.60 5.84 1.35 0.00 24.90 5.84 1.35 0.00 25.20 5.84 1.35 0.00 25.50 5.84 1.35 0.00 25.80 5.84 1.35 0.00 26.10 5.84 1.35 0.00 26.40 5.84 1.35 0.00 26.70 5.84 1.35 0.00 27.00 5.84 1.35 0.00 27.30 5.84 1.35 0.00 27.60 5.84 1.35 0.00 27.90 5.84 1.35 0.00 Type III 24-hr 25-year Rainfall=5.84"8807.Recharge(10.19.22) 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 1BS: Direct Runoff into Swale - M1 Runoff = 0.03 cfs @ 12.36 hrs, Volume= 0.006 af, Depth= 0.40" Routed to Pond 1AP : Grassed Swale Leaching - M1 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 7,973 39 >75% Grass cover, Good, HSG A 7,973 100.00% 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 1BS: Direct Runoff into Swale - M1 Runoff Hydrograph Time (hours) 26242220181614121086420Flow (cfs)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=7,973 sf Runoff Volume=0.006 af Runoff Depth=0.40" Tc=6.0 min CN=39 0.03 cfs Type III 24-hr 25-year Rainfall=5.84"8807.Recharge(10.19.22) 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 1BS: Direct Runoff into Swale - M1 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 0.01 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 0.00 17.70 5.39 0.29 0.00 18.00 5.42 0.29 0.00 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.Recharge(10.19.22) 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 2AS: Runoff into Catch Basins - M2 Runoff = 3.69 cfs @ 12.12 hrs, Volume= 0.322 af, Depth= 1.35" Routed to Pond 2AR : (7) CB's in Pavement 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 33,633 98 Paved parking, HSG A 48,641 39 >75% Grass cover, Good, HSG A 42,245 36 Woods, Fair, HSG A 124,519 54 Weighted Average 90,886 72.99% Pervious Area 33,633 27.01% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.5 50 0.0500 0.15 Sheet Flow, Grass: Dense n= 0.240 P2= 3.36" 1.5 90 0.0200 0.99 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 0.4 130 0.0600 4.97 Shallow Concentrated Flow, Paved Kv= 20.3 fps 7.4 270 Total Subcatchment 2AS: Runoff into Catch Basins - M2 Runoff Hydrograph Time (hours) 26242220181614121086420Flow (cfs)4 3 2 1 0 Type III 24-hr 25-year Rainfall=5.84" Runoff Area=124,519 sf Runoff Volume=0.322 af Runoff Depth=1.35" Flow Length=270' Tc=7.4 min CN=54 3.69 cfs Type III 24-hr 25-year Rainfall=5.84"8807.Recharge(10.19.22) 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 2AS: Runoff into Catch Basins - M2 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 0.10 12.00 2.92 0.15 1.42 12.30 3.86 0.43 2.28 12.60 4.17 0.55 0.93 12.90 4.33 0.62 0.64 13.20 4.46 0.67 0.51 13.50 4.58 0.72 0.47 13.80 4.68 0.77 0.43 14.10 4.76 0.81 0.38 14.40 4.85 0.85 0.36 14.70 4.92 0.88 0.33 15.00 4.99 0.91 0.31 15.30 5.05 0.94 0.29 Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 15.60 5.11 0.97 0.26 15.90 5.16 1.00 0.24 16.20 5.20 1.02 0.21 16.50 5.25 1.04 0.20 16.80 5.29 1.06 0.19 17.10 5.32 1.08 0.18 17.40 5.36 1.10 0.17 17.70 5.39 1.11 0.16 18.00 5.42 1.13 0.14 18.30 5.45 1.14 0.14 18.60 5.47 1.16 0.13 18.90 5.50 1.17 0.13 19.20 5.53 1.18 0.13 19.50 5.55 1.20 0.12 19.80 5.57 1.21 0.12 20.10 5.60 1.22 0.12 20.40 5.62 1.23 0.11 20.70 5.64 1.24 0.11 21.00 5.66 1.26 0.11 21.30 5.68 1.27 0.11 21.60 5.70 1.28 0.10 21.90 5.72 1.29 0.10 22.20 5.74 1.30 0.10 22.50 5.76 1.31 0.09 22.80 5.78 1.32 0.09 23.10 5.79 1.33 0.09 23.40 5.81 1.34 0.09 23.70 5.82 1.34 0.08 24.00 5.84 1.35 0.08 24.30 5.84 1.35 0.00 24.60 5.84 1.35 0.00 24.90 5.84 1.35 0.00 25.20 5.84 1.35 0.00 25.50 5.84 1.35 0.00 25.80 5.84 1.35 0.00 26.10 5.84 1.35 0.00 26.40 5.84 1.35 0.00 26.70 5.84 1.35 0.00 27.00 5.84 1.35 0.00 27.30 5.84 1.35 0.00 27.60 5.84 1.35 0.00 27.90 5.84 1.35 0.00 Type III 24-hr 25-year Rainfall=5.84"8807.Recharge(10.19.22) 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 2BS: Direct Runoff into Swale - M2 Runoff = 0.32 cfs @ 12.29 hrs, Volume= 0.057 af, Depth= 0.56" Routed to Pond 2AP : Grassed Swale Leaching - M2 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 25,000 36 Woods, Fair, HSG A 24,058 39 >75% Grass cover, Good, HSG A 4,089 98 Paved parking, HSG A 53,147 42 Weighted Average 49,058 92.31% Pervious Area 4,089 7.69% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 3.5 50 0.1600 0.24 Sheet Flow, Grass: Dense n= 0.240 P2= 3.36" 2.8 330 0.0800 1.98 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 6.3 380 Total Subcatchment 2BS: Direct Runoff into Swale - M2 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 25-year Rainfall=5.84" Runoff Area=53,147 sf Runoff Volume=0.057 af Runoff Depth=0.56" Flow Length=380' Tc=6.3 min CN=42 0.32 cfs Type III 24-hr 25-year Rainfall=5.84"8807.Recharge(10.19.22) 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 2BS: Direct Runoff into Swale - M2 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 0.32 12.60 4.17 0.13 0.16 12.90 4.33 0.16 0.12 13.20 4.46 0.19 0.10 13.50 4.58 0.21 0.10 13.80 4.68 0.23 0.09 14.10 4.76 0.25 0.08 14.40 4.85 0.27 0.08 14.70 4.92 0.29 0.08 15.00 4.99 0.31 0.07 15.30 5.05 0.33 0.07 Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 15.60 5.11 0.34 0.06 15.90 5.16 0.35 0.06 16.20 5.20 0.37 0.05 16.50 5.25 0.38 0.05 16.80 5.29 0.39 0.05 17.10 5.32 0.40 0.04 17.40 5.36 0.41 0.04 17.70 5.39 0.42 0.04 18.00 5.42 0.43 0.04 18.30 5.45 0.44 0.03 18.60 5.47 0.45 0.03 18.90 5.50 0.45 0.03 19.20 5.53 0.46 0.03 19.50 5.55 0.47 0.03 19.80 5.57 0.48 0.03 20.10 5.60 0.48 0.03 20.40 5.62 0.49 0.03 20.70 5.64 0.50 0.03 21.00 5.66 0.50 0.03 21.30 5.68 0.51 0.03 21.60 5.70 0.52 0.03 21.90 5.72 0.52 0.03 22.20 5.74 0.53 0.02 22.50 5.76 0.53 0.02 22.80 5.78 0.54 0.02 23.10 5.79 0.55 0.02 23.40 5.81 0.55 0.02 23.70 5.82 0.56 0.02 24.00 5.84 0.56 0.02 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.Recharge(10.19.22) 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 3S: Roof Runoff (per Dwelling) Runoff = 0.17 cfs @ 12.08 hrs, Volume= 0.014 af, Depth= 5.60" Routed to Pond 3P : (2) 15.5' x 4.33' x 2.5' Leaching Facilities (per Dwelling) - Each with (2) Cultec Recharger 330XLHD Units (Stoneless) 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 1,288 98 Roofs, HSG A 1,288 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 0.1 20 0.4000 3.33 Sheet Flow, Smooth surfaces n= 0.011 P2= 3.25" 0.1 20 Total, Increased to minimum Tc = 6.0 min Subcatchment 3S: Roof Runoff (per Dwelling) 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 25-year Rainfall=5.84" Runoff Area=1,288 sf Runoff Volume=0.014 af Runoff Depth=5.60" Flow Length=20' Slope=0.4000 '/' Tc=6.0 min CN=98 0.17 cfs Type III 24-hr 25-year Rainfall=5.84"8807.Recharge(10.19.22) 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 3S: Roof Runoff (per Dwelling) 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 0.01 0.00 1.80 0.11 0.02 0.00 2.10 0.12 0.02 0.00 2.40 0.14 0.03 0.00 2.70 0.16 0.04 0.00 3.00 0.18 0.06 0.00 3.30 0.20 0.07 0.00 3.60 0.22 0.08 0.00 3.90 0.24 0.10 0.00 4.20 0.27 0.12 0.00 4.50 0.29 0.14 0.00 4.80 0.31 0.16 0.00 5.10 0.34 0.18 0.00 5.40 0.37 0.20 0.00 5.70 0.39 0.22 0.00 6.00 0.42 0.25 0.00 6.30 0.45 0.27 0.00 6.60 0.48 0.30 0.00 6.90 0.52 0.33 0.00 7.20 0.55 0.37 0.00 7.50 0.59 0.40 0.00 7.80 0.64 0.44 0.00 8.10 0.68 0.49 0.00 8.40 0.73 0.53 0.00 8.70 0.79 0.59 0.01 9.00 0.85 0.65 0.01 9.30 0.92 0.71 0.01 9.60 0.99 0.79 0.01 9.90 1.08 0.86 0.01 10.20 1.16 0.95 0.01 10.50 1.26 1.05 0.01 10.80 1.38 1.16 0.01 11.10 1.51 1.29 0.01 11.40 1.67 1.45 0.02 11.70 1.98 1.76 0.04 12.00 2.92 2.69 0.11 12.30 3.86 3.62 0.07 12.60 4.17 3.93 0.02 12.90 4.33 4.10 0.02 13.20 4.46 4.23 0.01 13.50 4.58 4.34 0.01 13.80 4.68 4.44 0.01 14.10 4.76 4.53 0.01 14.40 4.85 4.61 0.01 14.70 4.92 4.68 0.01 15.00 4.99 4.75 0.01 15.30 5.05 4.81 0.01 Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 15.60 5.11 4.87 0.01 15.90 5.16 4.92 0.00 16.20 5.20 4.97 0.00 16.50 5.25 5.01 0.00 16.80 5.29 5.05 0.00 17.10 5.32 5.09 0.00 17.40 5.36 5.12 0.00 17.70 5.39 5.15 0.00 18.00 5.42 5.18 0.00 18.30 5.45 5.21 0.00 18.60 5.47 5.24 0.00 18.90 5.50 5.26 0.00 19.20 5.53 5.29 0.00 19.50 5.55 5.31 0.00 19.80 5.57 5.34 0.00 20.10 5.60 5.36 0.00 20.40 5.62 5.38 0.00 20.70 5.64 5.40 0.00 21.00 5.66 5.42 0.00 21.30 5.68 5.44 0.00 21.60 5.70 5.46 0.00 21.90 5.72 5.48 0.00 22.20 5.74 5.50 0.00 22.50 5.76 5.52 0.00 22.80 5.78 5.54 0.00 23.10 5.79 5.55 0.00 23.40 5.81 5.57 0.00 23.70 5.82 5.59 0.00 24.00 5.84 5.60 0.00 24.30 5.84 5.60 0.00 24.60 5.84 5.60 0.00 24.90 5.84 5.60 0.00 25.20 5.84 5.60 0.00 25.50 5.84 5.60 0.00 25.80 5.84 5.60 0.00 26.10 5.84 5.60 0.00 26.40 5.84 5.60 0.00 26.70 5.84 5.60 0.00 27.00 5.84 5.60 0.00 27.30 5.84 5.60 0.00 27.60 5.84 5.60 0.00 27.90 5.84 5.60 0.00 Type III 24-hr 25-year Rainfall=5.84"8807.Recharge(10.19.22) 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 Pond 1AP: Grassed Swale Leaching - M1 Inflow Area = 0.732 ac, 19.70% Impervious, Inflow Depth = 1.11" for 25-year event Inflow = 0.75 cfs @ 12.10 hrs, Volume= 0.068 af Outflow = 0.40 cfs @ 12.37 hrs, Volume= 0.066 af, Atten= 46%, Lag= 16.1 min Discarded = 0.04 cfs @ 12.37 hrs, Volume= 0.045 af Secondary = 0.37 cfs @ 12.37 hrs, Volume= 0.021 af Routed to Pond 1BP : (1) 28'x14' Leaching Facility - (2) 6'x6' Leach Pits, 14' O.C. with stone around Routing by Dyn-Stor-Ind method, Time Span= 0.00-27.99 hrs, dt= 0.03 hrs Peak Elev= 50.06' @ 12.37 hrs Surf.Area= 637 sf Storage= 731 cf Plug-Flow detention time= 174.3 min calculated for 0.066 af (97% of inflow) Center-of-Mass det. time= 157.5 min ( 1,047.5 - 889.9 ) Volume Invert Avail.Storage Storage Description #1 48.50' 2,417 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) 48.50 319 92.0 0 0 319 50.00 624 111.0 695 695 662 50.50 738 117.0 340 1,035 784 52.00 1,118 136.0 1,382 2,417 1,212 Device Routing Invert Outlet Devices #1 Discarded 48.50'2.410 in/hr Exfiltration over Wetted area Phase-In= 0.01' #2 Secondary 50.00'24.0" x 24.0" Horiz. Orifice/Grate C= 0.600 Limited to weir flow at low heads Discarded OutFlow Max=0.04 cfs @ 12.37 hrs HW=50.06' (Free Discharge) 1=Exfiltration (Exfiltration Controls 0.04 cfs) Secondary OutFlow Max=0.35 cfs @ 12.37 hrs HW=50.06' TW=41.77' (Dynamic Tailwater) 2=Orifice/Grate (Weir Controls 0.35 cfs @ 0.78 fps) Type III 24-hr 25-year Rainfall=5.84"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 107HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Pond 1AP: Grassed Swale Leaching - M1 Inflow Outflow Discarded Secondary Hydrograph Time (hours) 26242220181614121086420Flow (cfs)0.8 0.75 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=0.732 ac Peak Elev=50.06' Storage=731 cf 0.75 cfs 0.40 cfs 0.04 cfs 0.37 cfs Pond 1AP: Grassed Swale Leaching - M1 Total Discarded Secondary Stage-Discharge Discharge (cfs) 26242220181614121086420Elevation (feet)52 51 50 49 Exfiltration Orifice/Grate Type III 24-hr 25-year Rainfall=5.84"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 108HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Pond 1AP: Grassed Swale Leaching - M1 Surface Wetted Storage Stage-Area-Storage Storage (cubic-feet) 2,0001,5001,0005000 Surface/Horizontal/Wetted Area (sq-ft) 1,2001,0008006004002000 Elevation (feet)52 51 50 49 Grassed Swale Type III 24-hr 25-year Rainfall=5.84"8807.Recharge(10.19.22) 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 Pond 1AP: Grassed Swale Leaching - M1 Time (hours) Inflow (cfs) Storage (cubic-feet) Elevation (feet) Outflow (cfs) Discarded (cfs) Secondary (cfs) 0.00 0.00 0 48.50 0.00 0.00 0.00 0.60 0.00 0 48.50 0.00 0.00 0.00 1.20 0.00 0 48.50 0.00 0.00 0.00 1.80 0.00 0 48.50 0.00 0.00 0.00 2.40 0.00 0 48.50 0.00 0.00 0.00 3.00 0.00 0 48.50 0.00 0.00 0.00 3.60 0.00 0 48.50 0.00 0.00 0.00 4.20 0.00 0 48.50 0.00 0.00 0.00 4.80 0.00 0 48.50 0.00 0.00 0.00 5.40 0.00 0 48.50 0.00 0.00 0.00 6.00 0.00 0 48.50 0.00 0.00 0.00 6.60 0.00 0 48.50 0.00 0.00 0.00 7.20 0.00 0 48.50 0.00 0.00 0.00 7.80 0.00 0 48.50 0.00 0.00 0.00 8.40 0.00 0 48.50 0.00 0.00 0.00 9.00 0.00 0 48.50 0.00 0.00 0.00 9.60 0.00 0 48.50 0.00 0.00 0.00 10.20 0.00 0 48.50 0.00 0.00 0.00 10.80 0.00 0 48.50 0.00 0.00 0.00 11.40 0.00 0 48.50 0.00 0.00 0.00 12.00 0.33 109 48.81 0.02 0.02 0.00 12.60 0.18 715 50.03 0.20 0.04 0.16 13.20 0.11 707 50.02 0.11 0.04 0.07 13.80 0.09 705 50.02 0.09 0.04 0.06 14.40 0.08 703 50.01 0.08 0.04 0.04 15.00 0.07 702 50.01 0.07 0.04 0.03 15.60 0.06 700 50.01 0.06 0.04 0.02 16.20 0.05 698 50.01 0.05 0.04 0.01 16.80 0.04 697 50.00 0.04 0.04 0.01 17.40 0.04 695 50.00 0.04 0.04 0.00 18.00 0.03 689 49.99 0.04 0.04 0.00 18.60 0.03 676 49.97 0.04 0.04 0.00 19.20 0.03 660 49.94 0.04 0.04 0.00 19.80 0.03 641 49.91 0.04 0.04 0.00 20.40 0.03 620 49.88 0.04 0.04 0.00 21.00 0.02 598 49.84 0.03 0.03 0.00 21.60 0.02 574 49.80 0.03 0.03 0.00 22.20 0.02 549 49.76 0.03 0.03 0.00 22.80 0.02 522 49.71 0.03 0.03 0.00 23.40 0.02 495 49.66 0.03 0.03 0.00 24.00 0.02 465 49.60 0.03 0.03 0.00 24.60 0.00 405 49.49 0.03 0.03 0.00 25.20 0.00 342 49.36 0.03 0.03 0.00 25.80 0.00 282 49.23 0.03 0.03 0.00 26.40 0.00 227 49.11 0.03 0.03 0.00 27.00 0.00 174 48.98 0.02 0.02 0.00 27.60 0.00 125 48.86 0.02 0.02 0.00 Type III 24-hr 25-year Rainfall=5.84"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 110HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Stage-Discharge for Pond 1AP: Grassed Swale Leaching - M1 Elevation (feet) Discharge (cfs) Discarded (cfs) Secondary (cfs) 48.50 0.00 0.00 0.00 48.55 0.02 0.02 0.00 48.60 0.02 0.02 0.00 48.65 0.02 0.02 0.00 48.70 0.02 0.02 0.00 48.75 0.02 0.02 0.00 48.80 0.02 0.02 0.00 48.85 0.02 0.02 0.00 48.90 0.02 0.02 0.00 48.95 0.02 0.02 0.00 49.00 0.02 0.02 0.00 49.05 0.02 0.02 0.00 49.10 0.03 0.03 0.00 49.15 0.03 0.03 0.00 49.20 0.03 0.03 0.00 49.25 0.03 0.03 0.00 49.30 0.03 0.03 0.00 49.35 0.03 0.03 0.00 49.40 0.03 0.03 0.00 49.45 0.03 0.03 0.00 49.50 0.03 0.03 0.00 49.55 0.03 0.03 0.00 49.60 0.03 0.03 0.00 49.65 0.03 0.03 0.00 49.70 0.03 0.03 0.00 49.75 0.03 0.03 0.00 49.80 0.03 0.03 0.00 49.85 0.03 0.03 0.00 49.90 0.04 0.04 0.00 49.95 0.04 0.04 0.00 50.00 0.04 0.04 0.00 50.05 0.33 0.04 0.29 50.10 0.87 0.04 0.83 50.15 1.56 0.04 1.52 50.20 2.38 0.04 2.34 50.25 3.31 0.04 3.27 50.30 4.34 0.04 4.30 50.35 5.46 0.04 5.42 50.40 6.66 0.04 6.62 50.45 7.94 0.04 7.90 50.50 9.29 0.04 9.25 50.55 10.71 0.04 10.67 50.60 12.20 0.05 12.16 50.65 13.76 0.05 13.71 50.70 15.37 0.05 15.32 50.75 16.73 0.05 16.68 50.80 17.27 0.05 17.23 50.85 17.81 0.05 17.76 50.90 18.32 0.05 18.27 50.95 18.82 0.05 18.77 51.00 19.31 0.05 19.26 51.05 19.79 0.05 19.74 Elevation (feet) Discharge (cfs) Discarded (cfs) Secondary (cfs) 51.10 20.25 0.05 20.20 51.15 20.71 0.05 20.65 51.20 21.15 0.05 21.10 51.25 21.59 0.06 21.53 51.30 22.02 0.06 21.96 51.35 22.43 0.06 22.38 51.40 22.85 0.06 22.79 51.45 23.25 0.06 23.19 51.50 23.65 0.06 23.59 51.55 24.04 0.06 23.98 51.60 24.42 0.06 24.36 51.65 24.80 0.06 24.74 51.70 25.17 0.06 25.11 51.75 25.54 0.06 25.48 51.80 25.90 0.06 25.84 51.85 26.26 0.07 26.20 51.90 26.61 0.07 26.55 51.95 26.96 0.07 26.89 52.00 27.31 0.07 27.24 Type III 24-hr 25-year Rainfall=5.84"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 111HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 1AP: Grassed Swale Leaching - M1 Elevation (feet) Surface (sq-ft) Wetted (sq-ft) Storage (cubic-feet) 48.50 319 319 0 48.60 336 340 33 48.70 354 361 67 48.80 372 382 104 48.90 390 404 142 49.00 409 426 182 49.10 429 448 224 49.20 449 471 267 49.30 469 494 313 49.40 490 517 361 49.50 511 540 411 49.60 533 564 463 49.70 555 588 518 49.80 577 612 574 49.90 601 637 633 50.00 624 662 695 50.10 646 686 758 50.20 668 710 824 50.30 691 735 892 50.40 714 759 962 50.50 738 784 1,035 50.60 761 811 1,110 50.70 784 838 1,187 50.80 808 865 1,266 50.90 832 892 1,348 51.00 856 920 1,433 51.10 881 948 1,520 51.20 906 976 1,609 51.30 931 1,004 1,701 51.40 957 1,033 1,795 51.50 983 1,062 1,892 51.60 1,009 1,091 1,992 51.70 1,036 1,121 2,094 51.80 1,063 1,151 2,199 51.90 1,090 1,181 2,306 52.00 1,118 1,212 2,417 Type III 24-hr 25-year Rainfall=5.84"8807.Recharge(10.19.22) 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 Pond 1AR: (2) CB's in Pavement Inflow Area = 0.549 ac, 26.27% Impervious, Inflow Depth = 1.35" for 25-year event Inflow = 0.75 cfs @ 12.10 hrs, Volume= 0.062 af Outflow = 0.75 cfs @ 12.10 hrs, Volume= 0.062 af, Atten= 0%, Lag= 0.0 min Primary = 0.75 cfs @ 12.10 hrs, Volume= 0.062 af Routed to Pond 1AP : Grassed Swale Leaching - M1 Routing by Dyn-Stor-Ind method, Time Span= 0.00-27.99 hrs, dt= 0.03 hrs Peak Elev= 51.64' @ 12.10 hrs Flood Elev= 53.80' Device Routing Invert Outlet Devices #1 Primary 51.30'12.0" Round Culvert X 2.00 L= 50.0' CPP, projecting, no headwall, Ke= 0.900 Inlet / Outlet Invert= 51.30' / 50.50' S= 0.0160 '/' Cc= 0.900 n= 0.020 Corrugated PE, corrugated interior, Flow Area= 0.79 sf Primary OutFlow Max=0.73 cfs @ 12.10 hrs HW=51.64' TW=49.30' (Dynamic Tailwater) 1=Culvert (Inlet Controls 0.73 cfs @ 1.56 fps) Pond 1AR: (2) CB's in Pavement Inflow Primary Hydrograph Time (hours) 26242220181614121086420Flow (cfs)0.8 0.75 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=0.549 ac Peak Elev=51.64' 12.0" Round Culvert x 2.00 n=0.020 L=50.0' S=0.0160 '/' 0.75 cfs 0.75 cfs Type III 24-hr 25-year Rainfall=5.84"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 113HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Pond 1AR: (2) CB's in Pavement Primary Stage-Discharge Discharge (cfs) 876543210Elevation (feet)53 52 Culvert Pond 1AR: (2) CB's in Pavement Storage Stage-Area-Storage Storage (acre-feet) 0Elevation (feet)53 52 Flood Elevation Type III 24-hr 25-year Rainfall=5.84"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 114HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Hydrograph for Pond 1AR: (2) CB's in Pavement Time (hours) Inflow (cfs) Elevation (feet) Primary (cfs) 0.00 0.00 51.30 0.00 0.30 0.00 51.30 0.00 0.60 0.00 51.30 0.00 0.90 0.00 51.30 0.00 1.20 0.00 51.30 0.00 1.50 0.00 51.30 0.00 1.80 0.00 51.30 0.00 2.10 0.00 51.30 0.00 2.40 0.00 51.30 0.00 2.70 0.00 51.30 0.00 3.00 0.00 51.30 0.00 3.30 0.00 51.30 0.00 3.60 0.00 51.30 0.00 3.90 0.00 51.30 0.00 4.20 0.00 51.30 0.00 4.50 0.00 51.30 0.00 4.80 0.00 51.30 0.00 5.10 0.00 51.30 0.00 5.40 0.00 51.30 0.00 5.70 0.00 51.30 0.00 6.00 0.00 51.30 0.00 6.30 0.00 51.30 0.00 6.60 0.00 51.30 0.00 6.90 0.00 51.30 0.00 7.20 0.00 51.30 0.00 7.50 0.00 51.30 0.00 7.80 0.00 51.30 0.00 8.10 0.00 51.30 0.00 8.40 0.00 51.30 0.00 8.70 0.00 51.30 0.00 9.00 0.00 51.30 0.00 9.30 0.00 51.30 0.00 9.60 0.00 51.30 0.00 9.90 0.00 51.30 0.00 10.20 0.00 51.30 0.00 10.50 0.00 51.30 0.00 10.80 0.00 51.30 0.00 11.10 0.00 51.30 0.00 11.40 0.00 51.30 0.00 11.70 0.02 51.36 0.02 12.00 0.33 51.52 0.33 12.30 0.42 51.55 0.42 12.60 0.16 51.46 0.16 12.90 0.12 51.43 0.12 13.20 0.10 51.42 0.10 13.50 0.09 51.42 0.09 13.80 0.08 51.41 0.08 14.10 0.07 51.40 0.07 14.40 0.07 51.40 0.07 14.70 0.06 51.40 0.06 15.00 0.06 51.40 0.06 15.30 0.05 51.39 0.05 Time (hours) Inflow (cfs) Elevation (feet) Primary (cfs) 15.60 0.05 51.39 0.05 15.90 0.04 51.38 0.04 16.20 0.04 51.38 0.04 16.50 0.04 51.38 0.04 16.80 0.04 51.38 0.04 17.10 0.03 51.37 0.03 17.40 0.03 51.37 0.03 17.70 0.03 51.37 0.03 18.00 0.03 51.37 0.03 18.30 0.03 51.36 0.03 18.60 0.03 51.36 0.03 18.90 0.02 51.36 0.02 19.20 0.02 51.36 0.02 19.50 0.02 51.36 0.02 19.80 0.02 51.36 0.02 20.10 0.02 51.36 0.02 20.40 0.02 51.36 0.02 20.70 0.02 51.36 0.02 21.00 0.02 51.36 0.02 21.30 0.02 51.36 0.02 21.60 0.02 51.36 0.02 21.90 0.02 51.36 0.02 22.20 0.02 51.35 0.02 22.50 0.02 51.35 0.02 22.80 0.02 51.35 0.02 23.10 0.02 51.35 0.02 23.40 0.02 51.35 0.02 23.70 0.02 51.35 0.02 24.00 0.02 51.35 0.02 24.30 0.00 51.30 0.00 24.60 0.00 51.30 0.00 24.90 0.00 51.30 0.00 25.20 0.00 51.30 0.00 25.50 0.00 51.30 0.00 25.80 0.00 51.30 0.00 26.10 0.00 51.30 0.00 26.40 0.00 51.30 0.00 26.70 0.00 51.30 0.00 27.00 0.00 51.30 0.00 27.30 0.00 51.30 0.00 27.60 0.00 51.30 0.00 27.90 0.00 51.30 0.00 Type III 24-hr 25-year Rainfall=5.84"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 115HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Stage-Discharge for Pond 1AR: (2) CB's in Pavement Elevation (feet) Primary (cfs) 51.30 0.00 51.32 0.00 51.34 0.01 51.36 0.02 51.38 0.04 51.40 0.07 51.42 0.10 51.44 0.13 51.46 0.17 51.48 0.22 51.50 0.27 51.52 0.32 51.54 0.38 51.56 0.44 51.58 0.51 51.60 0.58 51.62 0.66 51.64 0.74 51.66 0.82 51.68 0.91 51.70 1.00 51.72 1.09 51.74 1.19 51.76 1.29 51.78 1.39 51.80 1.49 51.82 1.60 51.84 1.71 51.86 1.82 51.88 1.93 51.90 2.05 51.92 2.17 51.94 2.28 51.96 2.40 51.98 2.52 52.00 2.64 52.02 2.76 52.04 2.88 52.06 3.00 52.08 3.12 52.10 3.24 52.12 3.36 52.14 3.47 52.16 3.58 52.18 3.69 52.20 3.80 52.22 3.90 52.24 3.99 52.26 4.08 52.28 4.16 52.30 4.22 52.32 4.31 Elevation (feet) Primary (cfs) 52.34 4.39 52.36 4.47 52.38 4.55 52.40 4.63 52.42 4.70 52.44 4.78 52.46 4.85 52.48 4.92 52.50 5.00 52.52 5.07 52.54 5.14 52.56 5.21 52.58 5.27 52.60 5.34 52.62 5.41 52.64 5.47 52.66 5.54 52.68 5.60 52.70 5.66 52.72 5.73 52.74 5.79 52.76 5.85 52.78 5.91 52.80 5.97 52.82 6.03 52.84 6.09 52.86 6.15 52.88 6.21 52.90 6.26 52.92 6.32 52.94 6.38 52.96 6.43 52.98 6.47 53.00 6.51 53.02 6.56 53.04 6.60 53.06 6.64 53.08 6.69 53.10 6.73 53.12 6.77 53.14 6.81 53.16 6.85 53.18 6.89 53.20 6.94 53.22 6.98 53.24 7.02 53.26 7.06 53.28 7.10 53.30 7.14 53.32 7.18 53.34 7.22 53.36 7.25 Elevation (feet) Primary (cfs) 53.38 7.29 53.40 7.33 53.42 7.37 53.44 7.41 53.46 7.45 53.48 7.49 53.50 7.52 53.52 7.56 53.54 7.60 53.56 7.63 53.58 7.67 53.60 7.71 53.62 7.75 53.64 7.78 53.66 7.82 53.68 7.85 53.70 7.89 53.72 7.93 53.74 7.96 53.76 8.00 53.78 8.03 53.80 8.07 Type III 24-hr 25-year Rainfall=5.84"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 116HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 1AR: (2) CB's in Pavement Elevation (feet) Storage (acre-feet) 51.30 0.000 51.32 0.000 51.34 0.000 51.36 0.000 51.38 0.000 51.40 0.000 51.42 0.000 51.44 0.000 51.46 0.000 51.48 0.000 51.50 0.000 51.52 0.000 51.54 0.000 51.56 0.000 51.58 0.000 51.60 0.000 51.62 0.000 51.64 0.000 51.66 0.000 51.68 0.000 51.70 0.000 51.72 0.000 51.74 0.000 51.76 0.000 51.78 0.000 51.80 0.000 51.82 0.000 51.84 0.000 51.86 0.000 51.88 0.000 51.90 0.000 51.92 0.000 51.94 0.000 51.96 0.000 51.98 0.000 52.00 0.000 52.02 0.000 52.04 0.000 52.06 0.000 52.08 0.000 52.10 0.000 52.12 0.000 52.14 0.000 52.16 0.000 52.18 0.000 52.20 0.000 52.22 0.000 52.24 0.000 52.26 0.000 52.28 0.000 52.30 0.000 52.32 0.000 Elevation (feet) Storage (acre-feet) 52.34 0.000 52.36 0.000 52.38 0.000 52.40 0.000 52.42 0.000 52.44 0.000 52.46 0.000 52.48 0.000 52.50 0.000 52.52 0.000 52.54 0.000 52.56 0.000 52.58 0.000 52.60 0.000 52.62 0.000 52.64 0.000 52.66 0.000 52.68 0.000 52.70 0.000 52.72 0.000 52.74 0.000 52.76 0.000 52.78 0.000 52.80 0.000 52.82 0.000 52.84 0.000 52.86 0.000 52.88 0.000 52.90 0.000 52.92 0.000 52.94 0.000 52.96 0.000 52.98 0.000 53.00 0.000 53.02 0.000 53.04 0.000 53.06 0.000 53.08 0.000 53.10 0.000 53.12 0.000 53.14 0.000 53.16 0.000 53.18 0.000 53.20 0.000 53.22 0.000 53.24 0.000 53.26 0.000 53.28 0.000 53.30 0.000 53.32 0.000 53.34 0.000 53.36 0.000 Elevation (feet) Storage (acre-feet) 53.38 0.000 53.40 0.000 53.42 0.000 53.44 0.000 53.46 0.000 53.48 0.000 53.50 0.000 53.52 0.000 53.54 0.000 53.56 0.000 53.58 0.000 53.60 0.000 53.62 0.000 53.64 0.000 53.66 0.000 53.68 0.000 53.70 0.000 53.72 0.000 53.74 0.000 53.76 0.000 53.78 0.000 53.80 0.000 Type III 24-hr 25-year Rainfall=5.84"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 117HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Summary for Pond 1BP: (1) 28'x14' Leaching Facility - (2) 6'x6' Leach Pits, 14' O.C. with stone around Inflow = 0.37 cfs @ 12.37 hrs, Volume= 0.021 af Outflow = 0.09 cfs @ 12.95 hrs, Volume= 0.021 af, Atten= 74%, Lag= 34.9 min Discarded = 0.09 cfs @ 12.95 hrs, Volume= 0.021 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-27.99 hrs, dt= 0.03 hrs Peak Elev= 42.65' @ 12.95 hrs Surf.Area= 392 sf Storage= 220 cf Plug-Flow detention time= 22.8 min calculated for 0.021 af (100% of inflow) Center-of-Mass det. time= 22.8 min ( 831.3 - 808.5 ) Volume Invert Avail.Storage Storage Description #1 41.50' 967 cf 14.00'W x 28.00'L x 6.50'H Prismatoid 2,548 cf Overall - 398 cf Embedded = 2,150 cf x 45.0% Voids #2 42.00' 339 cf 6.00'D x 6.00'H Vertical Cone/Cylinder x 2 Inside #1 398 cf Overall - 3.0" Wall Thickness = 339 cf 1,307 cf Total Available Storage Device Routing Invert Outlet Devices #1 Discarded 41.50'8.270 in/hr Exfiltration over Wetted area Phase-In= 0.01' Discarded OutFlow Max=0.09 cfs @ 12.95 hrs HW=42.65' (Free Discharge) 1=Exfiltration (Exfiltration Controls 0.09 cfs) Pond 1BP: (1) 28'x14' Leaching Facility - (2) 6'x6' Leach Pits, 14' O.C. with stone around Inflow Discarded Hydrograph Time (hours) 26242220181614121086420Flow (cfs)0.4 0.38 0.36 0.34 0.32 0.3 0.28 0.26 0.24 0.22 0.2 0.18 0.16 0.14 0.12 0.1 0.08 0.06 0.04 0.02 0 Peak Elev=42.65' Storage=220 cf 0.37 cfs 0.09 cfs Type III 24-hr 25-year Rainfall=5.84"8807.Recharge(10.19.22) 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 1BP: (1) 28'x14' Leaching Facility - (2) 6'x6' Leach Pits, 14' O.C. with stone around Discarded Stage-Discharge Discharge (cfs) 0.170.160.150.140.130.120.110.10.090.080.070.060.050.040.030.020.010Elevation (feet)48 47 46 45 44 43 42 Exfiltration Pond 1BP: (1) 28'x14' Leaching Facility - (2) 6'x6' Leach Pits, 14' O.C. with stone around Wetted Storage Stage-Area-Storage Storage (cubic-feet) 1,2001,0008006004002000 Surface/Horizontal/Wetted Area (sq-ft) 900850800750700650600550500450400350300250200150100500 Elevation (feet)48 47 46 45 44 43 42 Prismatoid Vertical Cone/Cylinder Type III 24-hr 25-year Rainfall=5.84"8807.Recharge(10.19.22) 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 1BP: (1) 28'x14' Leaching Facility - (2) 6'x6' Leach Pits, 14' O.C. with stone around Time (hours) Inflow (cfs) Storage (cubic-feet) Elevation (feet) Discarded (cfs) 0.00 0.00 0 41.50 0.00 0.60 0.00 0 41.50 0.00 1.20 0.00 0 41.50 0.00 1.80 0.00 0 41.50 0.00 2.40 0.00 0 41.50 0.00 3.00 0.00 0 41.50 0.00 3.60 0.00 0 41.50 0.00 4.20 0.00 0 41.50 0.00 4.80 0.00 0 41.50 0.00 5.40 0.00 0 41.50 0.00 6.00 0.00 0 41.50 0.00 6.60 0.00 0 41.50 0.00 7.20 0.00 0 41.50 0.00 7.80 0.00 0 41.50 0.00 8.40 0.00 0 41.50 0.00 9.00 0.00 0 41.50 0.00 9.60 0.00 0 41.50 0.00 10.20 0.00 0 41.50 0.00 10.80 0.00 0 41.50 0.00 11.40 0.00 0 41.50 0.00 12.00 0.00 0 41.50 0.00 12.60 0.16 190 42.50 0.09 13.20 0.07 209 42.59 0.09 13.80 0.06 151 42.31 0.09 14.40 0.04 69 41.89 0.08 15.00 0.03 1 41.50 0.03 15.60 0.02 0 41.50 0.02 16.20 0.01 0 41.50 0.01 16.80 0.01 0 41.50 0.01 17.40 0.00 0 41.50 0.00 18.00 0.00 0 41.50 0.00 18.60 0.00 0 41.50 0.00 19.20 0.00 0 41.50 0.00 19.80 0.00 0 41.50 0.00 20.40 0.00 0 41.50 0.00 21.00 0.00 0 41.50 0.00 21.60 0.00 0 41.50 0.00 22.20 0.00 0 41.50 0.00 22.80 0.00 0 41.50 0.00 23.40 0.00 0 41.50 0.00 24.00 0.00 0 41.50 0.00 24.60 0.00 0 41.50 0.00 25.20 0.00 0 41.50 0.00 25.80 0.00 0 41.50 0.00 26.40 0.00 0 41.50 0.00 27.00 0.00 0 41.50 0.00 27.60 0.00 0 41.50 0.00 Type III 24-hr 25-year Rainfall=5.84"8807.Recharge(10.19.22) 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 1BP: (1) 28'x14' Leaching Facility - (2) 6'x6' Leach Pits, 14' O.C. with stone around Elevation (feet) Discarded (cfs) 41.50 0.00 41.55 0.08 41.60 0.08 41.65 0.08 41.70 0.08 41.75 0.08 41.80 0.08 41.85 0.08 41.90 0.08 41.95 0.08 42.00 0.08 42.05 0.08 42.10 0.08 42.15 0.09 42.20 0.09 42.25 0.09 42.30 0.09 42.35 0.09 42.40 0.09 42.45 0.09 42.50 0.09 42.55 0.09 42.60 0.09 42.65 0.09 42.70 0.09 42.75 0.10 42.80 0.10 42.85 0.10 42.90 0.10 42.95 0.10 43.00 0.10 43.05 0.10 43.10 0.10 43.15 0.10 43.20 0.10 43.25 0.10 43.30 0.10 43.35 0.10 43.40 0.11 43.45 0.11 43.50 0.11 43.55 0.11 43.60 0.11 43.65 0.11 43.70 0.11 43.75 0.11 43.80 0.11 43.85 0.11 43.90 0.11 43.95 0.11 44.00 0.12 44.05 0.12 Elevation (feet) Discarded (cfs) 44.10 0.12 44.15 0.12 44.20 0.12 44.25 0.12 44.30 0.12 44.35 0.12 44.40 0.12 44.45 0.12 44.50 0.12 44.55 0.12 44.60 0.12 44.65 0.13 44.70 0.13 44.75 0.13 44.80 0.13 44.85 0.13 44.90 0.13 44.95 0.13 45.00 0.13 45.05 0.13 45.10 0.13 45.15 0.13 45.20 0.13 45.25 0.14 45.30 0.14 45.35 0.14 45.40 0.14 45.45 0.14 45.50 0.14 45.55 0.14 45.60 0.14 45.65 0.14 45.70 0.14 45.75 0.14 45.80 0.14 45.85 0.14 45.90 0.15 45.95 0.15 46.00 0.15 46.05 0.15 46.10 0.15 46.15 0.15 46.20 0.15 46.25 0.15 46.30 0.15 46.35 0.15 46.40 0.15 46.45 0.15 46.50 0.16 46.55 0.16 46.60 0.16 46.65 0.16 Elevation (feet) Discarded (cfs) 46.70 0.16 46.75 0.16 46.80 0.16 46.85 0.16 46.90 0.16 46.95 0.16 47.00 0.16 47.05 0.16 47.10 0.17 47.15 0.17 47.20 0.17 47.25 0.17 47.30 0.17 47.35 0.17 47.40 0.17 47.45 0.17 47.50 0.17 47.55 0.17 47.60 0.17 47.65 0.17 47.70 0.17 47.75 0.18 47.80 0.18 47.85 0.18 47.90 0.18 47.95 0.18 48.00 0.18 Type III 24-hr 25-year Rainfall=5.84"8807.Recharge(10.19.22) 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 1BP: (1) 28'x14' Leaching Facility - (2) 6'x6' Leach Pits, 14' O.C. with stone around Elevation (feet) Wetted (sq-ft) Storage (cubic-feet) 41.50 392 0 41.60 400 18 41.70 409 35 41.80 417 53 41.90 426 71 42.00 434 88 42.10 442 109 42.20 451 129 42.30 459 149 42.40 468 169 42.50 476 190 42.60 484 210 42.70 493 230 42.80 501 251 42.90 510 271 43.00 518 291 43.10 526 312 43.20 535 332 43.30 543 352 43.40 552 373 43.50 560 393 43.60 568 413 43.70 577 433 43.80 585 454 43.90 594 474 44.00 602 494 44.10 610 515 44.20 619 535 44.30 627 555 44.40 636 576 44.50 644 596 44.60 652 616 44.70 661 637 44.80 669 657 44.90 678 677 45.00 686 697 45.10 694 718 45.20 703 738 45.30 711 758 45.40 720 779 45.50 728 799 45.60 736 819 45.70 745 840 45.80 753 860 45.90 762 880 46.00 770 901 46.10 778 921 46.20 787 941 46.30 795 961 46.40 804 982 46.50 812 1,002 46.60 820 1,022 Elevation (feet) Wetted (sq-ft) Storage (cubic-feet) 46.70 829 1,043 46.80 837 1,063 46.90 846 1,083 47.00 854 1,104 47.10 862 1,124 47.20 871 1,144 47.30 879 1,165 47.40 888 1,185 47.50 896 1,205 47.60 904 1,225 47.70 913 1,246 47.80 921 1,266 47.90 930 1,286 48.00 938 1,307 Type III 24-hr 25-year Rainfall=5.84"8807.Recharge(10.19.22) 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 2AP: Grassed Swale Leaching - M2 Inflow Area = 4.079 ac, 21.23% Impervious, Inflow Depth = 1.12" for 25-year event Inflow = 3.97 cfs @ 12.13 hrs, Volume= 0.379 af Outflow = 0.96 cfs @ 12.66 hrs, Volume= 0.359 af, Atten= 76%, Lag= 32.0 min Discarded = 0.21 cfs @ 12.66 hrs, Volume= 0.264 af Secondary = 0.75 cfs @ 12.66 hrs, Volume= 0.095 af Routed to Pond 2BP : (1) 70'x28' Leaching Facility - Two Rows of (5) 6'x6' Leach Pits, 14' O.C. with stone around Routing by Dyn-Stor-Ind method, Time Span= 0.00-27.99 hrs, dt= 0.03 hrs Peak Elev= 34.59' @ 12.66 hrs Surf.Area= 3,627 sf Storage= 5,181 cf Plug-Flow detention time= 224.8 min calculated for 0.358 af (95% of inflow) Center-of-Mass det. time= 197.3 min ( 1,089.6 - 892.3 ) Volume Invert Avail.Storage Storage Description #1 33.00' 6,696 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) 33.00 2,890 222.0 0 0 2,890 35.00 3,828 247.0 6,696 6,696 3,934 Device Routing Invert Outlet Devices #1 Discarded 33.00'2.410 in/hr Exfiltration over Wetted area Phase-In= 0.01' #2 Secondary 34.50'24.0" x 24.0" Horiz. Orifice/Grate C= 0.600 Limited to weir flow at low heads Discarded OutFlow Max=0.21 cfs @ 12.66 hrs HW=34.59' (Free Discharge) 1=Exfiltration (Exfiltration Controls 0.21 cfs) Secondary OutFlow Max=0.75 cfs @ 12.66 hrs HW=34.59' TW=26.15' (Dynamic Tailwater) 2=Orifice/Grate (Weir Controls 0.75 cfs @ 1.00 fps) Type III 24-hr 25-year Rainfall=5.84"8807.Recharge(10.19.22) 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 2AP: Grassed Swale Leaching - M2 Inflow Outflow Discarded Secondary Hydrograph Time (hours) 26242220181614121086420Flow (cfs)4 3 2 1 0 Inflow Area=4.079 ac Peak Elev=34.59' Storage=5,181 cf 3.97 cfs 0.96 cfs 0.21 cfs 0.75 cfs Pond 2AP: Grassed Swale Leaching - M2 Total Discarded Secondary Stage-Discharge Discharge (cfs) 9876543210Elevation (feet)35 34 33 Exfiltration Orifice/Grate Type III 24-hr 25-year Rainfall=5.84"8807.Recharge(10.19.22) 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 2AP: Grassed Swale Leaching - M2 Surface Wetted Storage Stage-Area-Storage Storage (cubic-feet) 6,0005,0004,0003,0002,0001,0000 Surface/Horizontal/Wetted Area (sq-ft) 3,5003,0002,5002,0001,5001,0005000 Elevation (feet)35 34 33 Grassed Swale Type III 24-hr 25-year Rainfall=5.84"8807.Recharge(10.19.22) 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 2AP: Grassed Swale Leaching - M2 Time (hours) Inflow (cfs) Storage (cubic-feet) Elevation (feet) Outflow (cfs) Discarded (cfs) Secondary (cfs) 0.00 0.00 0 33.00 0.00 0.00 0.00 0.60 0.00 0 33.00 0.00 0.00 0.00 1.20 0.00 0 33.00 0.00 0.00 0.00 1.80 0.00 0 33.00 0.00 0.00 0.00 2.40 0.00 0 33.00 0.00 0.00 0.00 3.00 0.00 0 33.00 0.00 0.00 0.00 3.60 0.00 0 33.00 0.00 0.00 0.00 4.20 0.00 0 33.00 0.00 0.00 0.00 4.80 0.00 0 33.00 0.00 0.00 0.00 5.40 0.00 0 33.00 0.00 0.00 0.00 6.00 0.00 0 33.00 0.00 0.00 0.00 6.60 0.00 0 33.00 0.00 0.00 0.00 7.20 0.00 0 33.00 0.00 0.00 0.00 7.80 0.00 0 33.00 0.00 0.00 0.00 8.40 0.00 0 33.00 0.00 0.00 0.00 9.00 0.00 0 33.00 0.00 0.00 0.00 9.60 0.00 0 33.00 0.00 0.00 0.00 10.20 0.00 0 33.00 0.00 0.00 0.00 10.80 0.00 0 33.00 0.00 0.00 0.00 11.40 0.00 0 33.00 0.00 0.00 0.00 12.00 1.42 418 33.14 0.17 0.17 0.00 12.60 1.09 5,166 34.59 0.91 0.21 0.70 13.20 0.61 5,081 34.57 0.65 0.21 0.44 13.80 0.52 5,038 34.55 0.53 0.21 0.33 14.40 0.44 5,002 34.54 0.45 0.21 0.24 15.00 0.38 4,978 34.54 0.39 0.21 0.19 15.60 0.32 4,950 34.53 0.34 0.21 0.13 16.20 0.26 4,916 34.52 0.28 0.20 0.07 16.80 0.24 4,893 34.51 0.25 0.20 0.04 17.40 0.21 4,870 34.51 0.22 0.20 0.02 18.00 0.18 4,834 34.50 0.20 0.20 0.00 18.60 0.17 4,763 34.48 0.20 0.20 0.00 19.20 0.16 4,674 34.45 0.20 0.20 0.00 19.80 0.15 4,568 34.42 0.20 0.20 0.00 20.40 0.14 4,446 34.39 0.20 0.20 0.00 21.00 0.13 4,312 34.35 0.20 0.20 0.00 21.60 0.13 4,166 34.31 0.20 0.20 0.00 22.20 0.12 4,008 34.26 0.20 0.20 0.00 22.80 0.11 3,838 34.21 0.20 0.20 0.00 23.40 0.11 3,656 34.16 0.19 0.19 0.00 24.00 0.10 3,462 34.10 0.19 0.19 0.00 24.60 0.00 3,088 33.99 0.19 0.19 0.00 25.20 0.00 2,683 33.87 0.19 0.19 0.00 25.80 0.00 2,286 33.75 0.18 0.18 0.00 26.40 0.00 1,896 33.63 0.18 0.18 0.00 27.00 0.00 1,513 33.50 0.18 0.18 0.00 27.60 0.00 1,138 33.38 0.17 0.17 0.00 Type III 24-hr 25-year Rainfall=5.84"8807.Recharge(10.19.22) 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 2AP: Grassed Swale Leaching - M2 Elevation (feet) Discharge (cfs) Discarded (cfs) Secondary (cfs) 33.00 0.00 0.00 0.00 33.02 0.16 0.16 0.00 33.04 0.16 0.16 0.00 33.06 0.16 0.16 0.00 33.08 0.16 0.16 0.00 33.10 0.16 0.16 0.00 33.12 0.16 0.16 0.00 33.14 0.17 0.17 0.00 33.16 0.17 0.17 0.00 33.18 0.17 0.17 0.00 33.20 0.17 0.17 0.00 33.22 0.17 0.17 0.00 33.24 0.17 0.17 0.00 33.26 0.17 0.17 0.00 33.28 0.17 0.17 0.00 33.30 0.17 0.17 0.00 33.32 0.17 0.17 0.00 33.34 0.17 0.17 0.00 33.36 0.17 0.17 0.00 33.38 0.17 0.17 0.00 33.40 0.17 0.17 0.00 33.42 0.17 0.17 0.00 33.44 0.17 0.17 0.00 33.46 0.17 0.17 0.00 33.48 0.17 0.17 0.00 33.50 0.18 0.18 0.00 33.52 0.18 0.18 0.00 33.54 0.18 0.18 0.00 33.56 0.18 0.18 0.00 33.58 0.18 0.18 0.00 33.60 0.18 0.18 0.00 33.62 0.18 0.18 0.00 33.64 0.18 0.18 0.00 33.66 0.18 0.18 0.00 33.68 0.18 0.18 0.00 33.70 0.18 0.18 0.00 33.72 0.18 0.18 0.00 33.74 0.18 0.18 0.00 33.76 0.18 0.18 0.00 33.78 0.18 0.18 0.00 33.80 0.18 0.18 0.00 33.82 0.18 0.18 0.00 33.84 0.18 0.18 0.00 33.86 0.19 0.19 0.00 33.88 0.19 0.19 0.00 33.90 0.19 0.19 0.00 33.92 0.19 0.19 0.00 33.94 0.19 0.19 0.00 33.96 0.19 0.19 0.00 33.98 0.19 0.19 0.00 34.00 0.19 0.19 0.00 34.02 0.19 0.19 0.00 Elevation (feet) Discharge (cfs) Discarded (cfs) Secondary (cfs) 34.04 0.19 0.19 0.00 34.06 0.19 0.19 0.00 34.08 0.19 0.19 0.00 34.10 0.19 0.19 0.00 34.12 0.19 0.19 0.00 34.14 0.19 0.19 0.00 34.16 0.19 0.19 0.00 34.18 0.19 0.19 0.00 34.20 0.20 0.20 0.00 34.22 0.20 0.20 0.00 34.24 0.20 0.20 0.00 34.26 0.20 0.20 0.00 34.28 0.20 0.20 0.00 34.30 0.20 0.20 0.00 34.32 0.20 0.20 0.00 34.34 0.20 0.20 0.00 34.36 0.20 0.20 0.00 34.38 0.20 0.20 0.00 34.40 0.20 0.20 0.00 34.42 0.20 0.20 0.00 34.44 0.20 0.20 0.00 34.46 0.20 0.20 0.00 34.48 0.20 0.20 0.00 34.50 0.20 0.20 0.00 34.52 0.28 0.20 0.07 34.54 0.41 0.21 0.21 34.56 0.59 0.21 0.38 34.58 0.80 0.21 0.59 34.60 1.03 0.21 0.83 34.62 1.30 0.21 1.09 34.64 1.58 0.21 1.37 34.66 1.88 0.21 1.67 34.68 2.21 0.21 2.00 34.70 2.55 0.21 2.34 34.72 2.91 0.21 2.70 34.74 3.29 0.21 3.08 34.76 3.68 0.21 3.47 34.78 4.09 0.21 3.88 34.80 4.51 0.21 4.30 34.82 4.95 0.21 4.74 34.84 5.40 0.21 5.19 34.86 5.87 0.22 5.65 34.88 6.34 0.22 6.13 34.90 6.83 0.22 6.62 34.92 7.34 0.22 7.12 34.94 7.85 0.22 7.64 34.96 8.38 0.22 8.16 34.98 8.92 0.22 8.70 35.00 9.47 0.22 9.25 Type III 24-hr 25-year Rainfall=5.84"8807.Recharge(10.19.22) 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 2AP: Grassed Swale Leaching - M2 Elevation (feet) Surface (sq-ft) Wetted (sq-ft) Storage (cubic-feet) 33.00 2,890 2,890 0 33.05 2,912 2,915 145 33.10 2,934 2,940 291 33.15 2,956 2,964 438 33.20 2,978 2,989 587 33.25 3,000 3,014 736 33.30 3,022 3,040 887 33.35 3,045 3,065 1,038 33.40 3,067 3,090 1,191 33.45 3,090 3,115 1,345 33.50 3,112 3,141 1,500 33.55 3,135 3,166 1,656 33.60 3,158 3,192 1,814 33.65 3,180 3,217 1,972 33.70 3,203 3,243 2,132 33.75 3,226 3,269 2,292 33.80 3,249 3,294 2,454 33.85 3,273 3,320 2,617 33.90 3,296 3,346 2,782 33.95 3,319 3,372 2,947 34.00 3,343 3,398 3,114 34.05 3,366 3,424 3,281 34.10 3,390 3,451 3,450 34.15 3,413 3,477 3,620 34.20 3,437 3,503 3,791 34.25 3,461 3,530 3,964 34.30 3,485 3,556 4,138 34.35 3,509 3,583 4,312 34.40 3,533 3,609 4,488 34.45 3,557 3,636 4,666 34.50 3,581 3,663 4,844 34.55 3,605 3,690 5,024 34.60 3,630 3,717 5,205 34.65 3,654 3,744 5,387 34.70 3,679 3,771 5,570 34.75 3,704 3,798 5,755 34.80 3,728 3,825 5,940 34.85 3,753 3,852 6,127 34.90 3,778 3,879 6,316 34.95 3,803 3,907 6,505 35.00 3,828 3,934 6,696 Type III 24-hr 25-year Rainfall=5.84"8807.Recharge(10.19.22) 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 2AR: (7) CB's in Pavement Inflow Area = 2.859 ac, 27.01% Impervious, Inflow Depth = 1.35" for 25-year event Inflow = 3.69 cfs @ 12.12 hrs, Volume= 0.322 af Outflow = 3.69 cfs @ 12.12 hrs, Volume= 0.322 af, Atten= 0%, Lag= 0.0 min Primary = 3.69 cfs @ 12.12 hrs, Volume= 0.322 af Routed to Pond 2AP : Grassed Swale Leaching - M2 Routing by Dyn-Stor-Ind method, Time Span= 0.00-27.99 hrs, dt= 0.03 hrs Peak Elev= 36.11' @ 12.12 hrs Flood Elev= 38.20' Device Routing Invert Outlet Devices #1 Primary 35.70'12.0" Round Culvert X 7.00 L= 50.0' CPP, projecting, no headwall, Ke= 0.900 Inlet / Outlet Invert= 35.70' / 35.00' S= 0.0140 '/' Cc= 0.900 n= 0.020 Corrugated PE, corrugated interior, Flow Area= 0.79 sf Primary OutFlow Max=3.67 cfs @ 12.12 hrs HW=36.11' TW=33.53' (Dynamic Tailwater) 1=Culvert (Inlet Controls 3.67 cfs @ 1.72 fps) Pond 2AR: (7) CB's in Pavement Inflow Primary Hydrograph Time (hours) 26242220181614121086420Flow (cfs)4 3 2 1 0 Inflow Area=2.859 ac Peak Elev=36.11' 12.0" Round Culvert x 7.00 n=0.020 L=50.0' S=0.0140 '/' 3.69 cfs 3.69 cfs Type III 24-hr 25-year Rainfall=5.84"8807.Recharge(10.19.22) 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 2AR: (7) CB's in Pavement Primary Stage-Discharge Discharge (cfs) 26242220181614121086420Elevation (feet)38 37 36 Culvert Pond 2AR: (7) CB's in Pavement Storage Stage-Area-Storage Storage (acre-feet) 0Elevation (feet)38 37 36 Flood Elevation Type III 24-hr 25-year Rainfall=5.84"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 130HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Hydrograph for Pond 2AR: (7) CB's in Pavement Time (hours) Inflow (cfs) Elevation (feet) Primary (cfs) 0.00 0.00 35.70 0.00 0.30 0.00 35.70 0.00 0.60 0.00 35.70 0.00 0.90 0.00 35.70 0.00 1.20 0.00 35.70 0.00 1.50 0.00 35.70 0.00 1.80 0.00 35.70 0.00 2.10 0.00 35.70 0.00 2.40 0.00 35.70 0.00 2.70 0.00 35.70 0.00 3.00 0.00 35.70 0.00 3.30 0.00 35.70 0.00 3.60 0.00 35.70 0.00 3.90 0.00 35.70 0.00 4.20 0.00 35.70 0.00 4.50 0.00 35.70 0.00 4.80 0.00 35.70 0.00 5.10 0.00 35.70 0.00 5.40 0.00 35.70 0.00 5.70 0.00 35.70 0.00 6.00 0.00 35.70 0.00 6.30 0.00 35.70 0.00 6.60 0.00 35.70 0.00 6.90 0.00 35.70 0.00 7.20 0.00 35.70 0.00 7.50 0.00 35.70 0.00 7.80 0.00 35.70 0.00 8.10 0.00 35.70 0.00 8.40 0.00 35.70 0.00 8.70 0.00 35.70 0.00 9.00 0.00 35.70 0.00 9.30 0.00 35.70 0.00 9.60 0.00 35.70 0.00 9.90 0.00 35.70 0.00 10.20 0.00 35.70 0.00 10.50 0.00 35.70 0.00 10.80 0.00 35.70 0.00 11.10 0.00 35.70 0.00 11.40 0.00 35.70 0.00 11.70 0.10 35.77 0.10 12.00 1.42 35.95 1.42 12.30 2.28 36.02 2.28 12.60 0.93 35.90 0.93 12.90 0.64 35.87 0.64 13.20 0.51 35.85 0.51 13.50 0.47 35.85 0.47 13.80 0.43 35.84 0.43 14.10 0.38 35.83 0.38 14.40 0.36 35.83 0.36 14.70 0.33 35.82 0.33 15.00 0.31 35.82 0.31 15.30 0.29 35.81 0.29 Time (hours) Inflow (cfs) Elevation (feet) Primary (cfs) 15.60 0.26 35.81 0.26 15.90 0.24 35.80 0.24 16.20 0.21 35.80 0.21 16.50 0.20 35.80 0.20 16.80 0.19 35.79 0.19 17.10 0.18 35.79 0.18 17.40 0.17 35.79 0.17 17.70 0.16 35.79 0.16 18.00 0.14 35.78 0.14 18.30 0.14 35.78 0.14 18.60 0.13 35.78 0.13 18.90 0.13 35.78 0.13 19.20 0.13 35.78 0.13 19.50 0.12 35.78 0.12 19.80 0.12 35.78 0.12 20.10 0.12 35.77 0.12 20.40 0.11 35.77 0.11 20.70 0.11 35.77 0.11 21.00 0.11 35.77 0.11 21.30 0.11 35.77 0.11 21.60 0.10 35.77 0.10 21.90 0.10 35.77 0.10 22.20 0.10 35.77 0.10 22.50 0.09 35.77 0.09 22.80 0.09 35.77 0.09 23.10 0.09 35.77 0.09 23.40 0.09 35.76 0.09 23.70 0.08 35.76 0.08 24.00 0.08 35.76 0.08 24.30 0.00 35.71 0.00 24.60 0.00 35.70 0.00 24.90 0.00 35.70 0.00 25.20 0.00 35.70 0.00 25.50 0.00 35.70 0.00 25.80 0.00 35.70 0.00 26.10 0.00 35.70 0.00 26.40 0.00 35.70 0.00 26.70 0.00 35.70 0.00 27.00 0.00 35.70 0.00 27.30 0.00 35.70 0.00 27.60 0.00 35.70 0.00 27.90 0.00 35.70 0.00 Type III 24-hr 25-year Rainfall=5.84"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 131HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Stage-Discharge for Pond 2AR: (7) CB's in Pavement Elevation (feet) Primary (cfs) 35.70 0.00 35.72 0.01 35.74 0.03 35.76 0.07 35.78 0.13 35.80 0.22 35.82 0.32 35.84 0.44 35.86 0.57 35.88 0.73 35.90 0.90 35.92 1.10 35.94 1.30 35.96 1.53 35.98 1.77 36.00 2.02 36.02 2.29 36.04 2.58 36.06 2.87 36.08 3.18 36.10 3.49 36.12 3.82 36.14 4.15 36.16 4.50 36.18 4.86 36.20 5.22 36.22 5.60 36.24 5.98 36.26 6.37 36.28 6.77 36.30 7.17 36.32 7.58 36.34 7.99 36.36 8.41 36.38 8.82 36.40 9.24 36.42 9.67 36.44 10.09 36.46 10.51 36.48 10.92 36.50 11.34 36.52 11.74 36.54 12.15 36.56 12.54 36.58 12.92 36.60 13.29 36.62 13.64 36.64 13.98 36.66 14.28 36.68 14.56 36.70 14.78 36.72 15.07 Elevation (feet) Primary (cfs) 36.74 15.36 36.76 15.64 36.78 15.92 36.80 16.19 36.82 16.46 36.84 16.72 36.86 16.98 36.88 17.23 36.90 17.49 36.92 17.73 36.94 17.98 36.96 18.22 36.98 18.46 37.00 18.69 37.02 18.92 37.04 18.99 37.06 19.17 37.08 19.35 37.10 19.53 37.12 19.70 37.14 19.88 37.16 20.05 37.18 20.22 37.20 20.39 37.22 20.56 37.24 20.73 37.26 20.90 37.28 21.06 37.30 21.23 37.32 21.39 37.34 21.55 37.36 21.71 37.38 21.87 37.40 22.03 37.42 22.19 37.44 22.34 37.46 22.50 37.48 22.65 37.50 22.80 37.52 22.95 37.54 23.10 37.56 23.25 37.58 23.40 37.60 23.55 37.62 23.70 37.64 23.84 37.66 23.99 37.68 24.13 37.70 24.27 37.72 24.42 37.74 24.56 37.76 24.70 Elevation (feet) Primary (cfs) 37.78 24.84 37.80 24.98 37.82 25.12 37.84 25.25 37.86 25.39 37.88 25.53 37.90 25.66 37.92 25.80 37.94 25.93 37.96 26.06 37.98 26.20 38.00 26.33 38.02 26.46 38.04 26.59 38.06 26.72 38.08 26.85 38.10 26.98 38.12 27.11 38.14 27.24 38.16 27.36 38.18 27.49 38.20 27.61 Type III 24-hr 25-year Rainfall=5.84"8807.Recharge(10.19.22) 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-Area-Storage for Pond 2AR: (7) CB's in Pavement Elevation (feet) Storage (acre-feet) 35.70 0.000 35.72 0.000 35.74 0.000 35.76 0.000 35.78 0.000 35.80 0.000 35.82 0.000 35.84 0.000 35.86 0.000 35.88 0.000 35.90 0.000 35.92 0.000 35.94 0.000 35.96 0.000 35.98 0.000 36.00 0.000 36.02 0.000 36.04 0.000 36.06 0.000 36.08 0.000 36.10 0.000 36.12 0.000 36.14 0.000 36.16 0.000 36.18 0.000 36.20 0.000 36.22 0.000 36.24 0.000 36.26 0.000 36.28 0.000 36.30 0.000 36.32 0.000 36.34 0.000 36.36 0.000 36.38 0.000 36.40 0.000 36.42 0.000 36.44 0.000 36.46 0.000 36.48 0.000 36.50 0.000 36.52 0.000 36.54 0.000 36.56 0.000 36.58 0.000 36.60 0.000 36.62 0.000 36.64 0.000 36.66 0.000 36.68 0.000 36.70 0.000 36.72 0.000 Elevation (feet) Storage (acre-feet) 36.74 0.000 36.76 0.000 36.78 0.000 36.80 0.000 36.82 0.000 36.84 0.000 36.86 0.000 36.88 0.000 36.90 0.000 36.92 0.000 36.94 0.000 36.96 0.000 36.98 0.000 37.00 0.000 37.02 0.000 37.04 0.000 37.06 0.000 37.08 0.000 37.10 0.000 37.12 0.000 37.14 0.000 37.16 0.000 37.18 0.000 37.20 0.000 37.22 0.000 37.24 0.000 37.26 0.000 37.28 0.000 37.30 0.000 37.32 0.000 37.34 0.000 37.36 0.000 37.38 0.000 37.40 0.000 37.42 0.000 37.44 0.000 37.46 0.000 37.48 0.000 37.50 0.000 37.52 0.000 37.54 0.000 37.56 0.000 37.58 0.000 37.60 0.000 37.62 0.000 37.64 0.000 37.66 0.000 37.68 0.000 37.70 0.000 37.72 0.000 37.74 0.000 37.76 0.000 Elevation (feet) Storage (acre-feet) 37.78 0.000 37.80 0.000 37.82 0.000 37.84 0.000 37.86 0.000 37.88 0.000 37.90 0.000 37.92 0.000 37.94 0.000 37.96 0.000 37.98 0.000 38.00 0.000 38.02 0.000 38.04 0.000 38.06 0.000 38.08 0.000 38.10 0.000 38.12 0.000 38.14 0.000 38.16 0.000 38.18 0.000 38.20 0.000 Type III 24-hr 25-year Rainfall=5.84"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 133HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Summary for Pond 2BP: (1) 70'x28' Leaching Facility - Two Rows of (5) 6'x6' Leach Pits, 14' O.C. with stone around Inflow = 0.75 cfs @ 12.66 hrs, Volume= 0.095 af Outflow = 0.40 cfs @ 13.38 hrs, Volume= 0.095 af, Atten= 47%, Lag= 43.1 min Discarded = 0.40 cfs @ 13.38 hrs, Volume= 0.095 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-27.99 hrs, dt= 0.03 hrs Peak Elev= 26.59' @ 13.38 hrs Surf.Area= 1,960 sf Storage= 535 cf Plug-Flow detention time= 11.8 min calculated for 0.095 af (100% of inflow) Center-of-Mass det. time= 11.8 min ( 846.4 - 834.6 ) Volume Invert Avail.Storage Storage Description #1 26.00' 4,837 cf 28.00'W x 70.00'L x 6.50'H Prismatoid 12,740 cf Overall - 1,991 cf Embedded = 10,749 cf x 45.0% Voids #2 26.50' 1,696 cf 6.00'D x 6.00'H Vertical Cone/Cylinder x 10 Inside #1 1,991 cf Overall - 3.0" Wall Thickness = 1,696 cf 6,534 cf Total Available Storage Device Routing Invert Outlet Devices #1 Discarded 26.00'8.270 in/hr Exfiltration over Wetted area Phase-In= 0.01' Discarded OutFlow Max=0.40 cfs @ 13.38 hrs HW=26.59' (Free Discharge) 1=Exfiltration (Exfiltration Controls 0.40 cfs) Pond 2BP: (1) 70'x28' Leaching Facility - Two Rows of (5) 6'x6' Leach Pits, 14' O.C. with stone around Inflow Discarded Hydrograph Time (hours) 26242220181614121086420Flow (cfs)0.8 0.75 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 Peak Elev=26.59' Storage=535 cf 0.75 cfs 0.40 cfs Type III 24-hr 25-year Rainfall=5.84"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 134HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Pond 2BP: (1) 70'x28' Leaching Facility - Two Rows of (5) 6'x6' Leach Pits, 14' O.C. with stone around Discarded Stage-Discharge Discharge (cfs) 0.60.550.50.450.40.350.30.250.20.150.10.050Elevation (feet)32 31 30 29 28 27 26 Exfiltration Pond 2BP: (1) 70'x28' Leaching Facility - Two Rows of (5) 6'x6' Leach Pits, 14' O.C. with stone around Wetted Storage Stage-Area-Storage Storage (cubic-feet) 6,0005,0004,0003,0002,0001,0000 Surface/Horizontal/Wetted Area (sq-ft) 3,2003,0002,8002,6002,4002,2002,0001,8001,6001,4001,2001,0008006004002000 Elevation (feet)32 31 30 29 28 27 26 Prismatoid Vertical Cone/Cylinder Type III 24-hr 25-year Rainfall=5.84"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 135HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Hydrograph for Pond 2BP: (1) 70'x28' Leaching Facility - Two Rows of (5) 6'x6' Leach Pits, 14' O.C. with stone around Time (hours) Inflow (cfs) Storage (cubic-feet) Elevation (feet) Discarded (cfs) 0.00 0.00 0 26.00 0.00 0.60 0.00 0 26.00 0.00 1.20 0.00 0 26.00 0.00 1.80 0.00 0 26.00 0.00 2.40 0.00 0 26.00 0.00 3.00 0.00 0 26.00 0.00 3.60 0.00 0 26.00 0.00 4.20 0.00 0 26.00 0.00 4.80 0.00 0 26.00 0.00 5.40 0.00 0 26.00 0.00 6.00 0.00 0 26.00 0.00 6.60 0.00 0 26.00 0.00 7.20 0.00 0 26.00 0.00 7.80 0.00 0 26.00 0.00 8.40 0.00 0 26.00 0.00 9.00 0.00 0 26.00 0.00 9.60 0.00 0 26.00 0.00 10.20 0.00 0 26.00 0.00 10.80 0.00 0 26.00 0.00 11.40 0.00 0 26.00 0.00 12.00 0.00 0 26.00 0.00 12.60 0.70 53 26.06 0.38 13.20 0.44 523 26.58 0.40 13.80 0.33 484 26.54 0.40 14.40 0.24 243 26.28 0.39 15.00 0.19 4 26.01 0.19 15.60 0.13 3 26.00 0.13 16.20 0.07 2 26.00 0.07 16.80 0.04 1 26.00 0.04 17.40 0.02 0 26.00 0.02 18.00 0.00 0 26.00 0.00 18.60 0.00 0 26.00 0.00 19.20 0.00 0 26.00 0.00 19.80 0.00 0 26.00 0.00 20.40 0.00 0 26.00 0.00 21.00 0.00 0 26.00 0.00 21.60 0.00 0 26.00 0.00 22.20 0.00 0 26.00 0.00 22.80 0.00 0 26.00 0.00 23.40 0.00 0 26.00 0.00 24.00 0.00 0 26.00 0.00 24.60 0.00 0 26.00 0.00 25.20 0.00 0 26.00 0.00 25.80 0.00 0 26.00 0.00 26.40 0.00 0 26.00 0.00 27.00 0.00 0 26.00 0.00 27.60 0.00 0 26.00 0.00 Type III 24-hr 25-year Rainfall=5.84"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 136HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Stage-Discharge for Pond 2BP: (1) 70'x28' Leaching Facility - Two Rows of (5) 6'x6' Leach Pits, 14' O.C. with stone around Elevation (feet) Discarded (cfs) 26.00 0.00 26.05 0.38 26.10 0.38 26.15 0.38 26.20 0.38 26.25 0.38 26.30 0.39 26.35 0.39 26.40 0.39 26.45 0.39 26.50 0.39 26.55 0.40 26.60 0.40 26.65 0.40 26.70 0.40 26.75 0.40 26.80 0.41 26.85 0.41 26.90 0.41 26.95 0.41 27.00 0.41 27.05 0.41 27.10 0.42 27.15 0.42 27.20 0.42 27.25 0.42 27.30 0.42 27.35 0.43 27.40 0.43 27.45 0.43 27.50 0.43 27.55 0.43 27.60 0.44 27.65 0.44 27.70 0.44 27.75 0.44 27.80 0.44 27.85 0.44 27.90 0.45 27.95 0.45 28.00 0.45 28.05 0.45 28.10 0.45 28.15 0.46 28.20 0.46 28.25 0.46 28.30 0.46 28.35 0.46 28.40 0.47 28.45 0.47 28.50 0.47 28.55 0.47 Elevation (feet) Discarded (cfs) 28.60 0.47 28.65 0.47 28.70 0.48 28.75 0.48 28.80 0.48 28.85 0.48 28.90 0.48 28.95 0.49 29.00 0.49 29.05 0.49 29.10 0.49 29.15 0.49 29.20 0.50 29.25 0.50 29.30 0.50 29.35 0.50 29.40 0.50 29.45 0.50 29.50 0.51 29.55 0.51 29.60 0.51 29.65 0.51 29.70 0.51 29.75 0.52 29.80 0.52 29.85 0.52 29.90 0.52 29.95 0.52 30.00 0.53 30.05 0.53 30.10 0.53 30.15 0.53 30.20 0.53 30.25 0.53 30.30 0.54 30.35 0.54 30.40 0.54 30.45 0.54 30.50 0.54 30.55 0.55 30.60 0.55 30.65 0.55 30.70 0.55 30.75 0.55 30.80 0.56 30.85 0.56 30.90 0.56 30.95 0.56 31.00 0.56 31.05 0.56 31.10 0.57 31.15 0.57 Elevation (feet) Discarded (cfs) 31.20 0.57 31.25 0.57 31.30 0.57 31.35 0.58 31.40 0.58 31.45 0.58 31.50 0.58 31.55 0.58 31.60 0.59 31.65 0.59 31.70 0.59 31.75 0.59 31.80 0.59 31.85 0.59 31.90 0.60 31.95 0.60 32.00 0.60 32.05 0.60 32.10 0.60 32.15 0.61 32.20 0.61 32.25 0.61 32.30 0.61 32.35 0.61 32.40 0.62 32.45 0.62 32.50 0.62 Type III 24-hr 25-year Rainfall=5.84"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 137HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 2BP: (1) 70'x28' Leaching Facility - Two Rows of (5) 6'x6' Leach Pits, 14' O.C. with stone around Elevation (feet) Wetted (sq-ft) Storage (cubic-feet) 26.00 1,960 0 26.10 1,980 88 26.20 1,999 176 26.30 2,019 265 26.40 2,038 353 26.50 2,058 441 26.60 2,078 543 26.70 2,097 644 26.80 2,117 746 26.90 2,136 847 27.00 2,156 949 27.10 2,176 1,050 27.20 2,195 1,152 27.30 2,215 1,253 27.40 2,234 1,355 27.50 2,254 1,456 27.60 2,274 1,558 27.70 2,293 1,660 27.80 2,313 1,761 27.90 2,332 1,863 28.00 2,352 1,964 28.10 2,372 2,066 28.20 2,391 2,167 28.30 2,411 2,269 28.40 2,430 2,370 28.50 2,450 2,472 28.60 2,470 2,573 28.70 2,489 2,675 28.80 2,509 2,776 28.90 2,528 2,878 29.00 2,548 2,980 29.10 2,568 3,081 29.20 2,587 3,183 29.30 2,607 3,284 29.40 2,626 3,386 29.50 2,646 3,487 29.60 2,666 3,589 29.70 2,685 3,690 29.80 2,705 3,792 29.90 2,724 3,893 30.00 2,744 3,995 30.10 2,764 4,097 30.20 2,783 4,198 30.30 2,803 4,300 30.40 2,822 4,401 30.50 2,842 4,503 30.60 2,862 4,604 30.70 2,881 4,706 30.80 2,901 4,807 30.90 2,920 4,909 31.00 2,940 5,010 31.10 2,960 5,112 Elevation (feet) Wetted (sq-ft) Storage (cubic-feet) 31.20 2,979 5,213 31.30 2,999 5,315 31.40 3,018 5,417 31.50 3,038 5,518 31.60 3,058 5,620 31.70 3,077 5,721 31.80 3,097 5,823 31.90 3,116 5,924 32.00 3,136 6,026 32.10 3,156 6,127 32.20 3,175 6,229 32.30 3,195 6,330 32.40 3,214 6,432 32.50 3,234 6,534 Type III 24-hr 25-year Rainfall=5.84"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 138HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Summary for Pond 3P: (2) 15.5' x 4.33' x 2.5' Leaching Facilities (per Dwelling) - Each with (2) Cultec Recharger 330XLHD Units (Stoneless) Inflow Area = 0.030 ac,100.00% Impervious, Inflow Depth = 5.60" for 25-year event Inflow = 0.17 cfs @ 12.08 hrs, Volume= 0.014 af Outflow = 0.03 cfs @ 12.52 hrs, Volume= 0.014 af, Atten= 81%, Lag= 26.1 min Discarded = 0.03 cfs @ 12.52 hrs, Volume= 0.014 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-27.99 hrs, dt= 0.03 hrs Peak Elev= 51.33' @ 12.52 hrs Surf.Area= 103 sf Storage= 154 cf Plug-Flow detention time= 27.9 min calculated for 0.014 af (100% of inflow) Center-of-Mass det. time= 27.9 min ( 773.4 - 745.6 ) Volume Invert Avail.Storage Storage Description #1 50.00' 231 cf Cultec R-330XLHD x 4 Effective Size= 47.8"W x 30.0"H => 7.45 sf x 7.00'L = 52.2 cf Overall Size= 52.0"W x 30.5"H x 8.50'L with 1.50' Overlap Row Length Adjustment= +1.50' x 7.45 sf x 2 rows Device Routing Invert Outlet Devices #1 Discarded 50.00'8.270 in/hr Exfiltration over Wetted area Phase-In= 0.01' Discarded OutFlow Max=0.03 cfs @ 12.52 hrs HW=51.33' (Free Discharge) 1=Exfiltration (Exfiltration Controls 0.03 cfs) Pond 3P: (2) 15.5' x 4.33' x 2.5' Leaching Facilities (per Dwelling) - Each with (2) Cultec Recharger 330XLHD Units (Stoneless) Inflow Discarded 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=0.030 ac Peak Elev=51.33' Storage=154 cf 0.17 cfs 0.03 cfs Type III 24-hr 25-year Rainfall=5.84"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 139HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Pond 3P: (2) 15.5' x 4.33' x 2.5' Leaching Facilities (per Dwelling) - Each with (2) Cultec Recharger 330XLHD Units (Stoneless) Discarded Stage-Discharge Discharge (cfs) 0.040.0350.030.0250.020.0150.010.0050Elevation (feet)52 51 50 Exfiltration Pond 3P: (2) 15.5' x 4.33' x 2.5' Leaching Facilities (per Dwelling) - Each with (2) Cultec Recharger 330XLHD Units (Stoneless) Wetted Storage Stage-Area-Storage Storage (cubic-feet) 220200180160140120100806040200 Surface/Horizontal/Wetted Area (sq-ft) 220200180160140120100806040200 Elevation (feet)52 51 50 Cultec R-330XLHD Type III 24-hr 25-year Rainfall=5.84"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 140HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Hydrograph for Pond 3P: (2) 15.5' x 4.33' x 2.5' Leaching Facilities (per Dwelling) - Each with (2) Cultec Recharger 330XLHD Units (Stoneless) Time (hours) Inflow (cfs) Storage (cubic-feet) Elevation (feet) Discarded (cfs) 0.00 0.00 0 50.00 0.00 0.60 0.00 0 50.00 0.00 1.20 0.00 0 50.00 0.00 1.80 0.00 0 50.00 0.00 2.40 0.00 0 50.00 0.00 3.00 0.00 0 50.00 0.00 3.60 0.00 0 50.00 0.00 4.20 0.00 0 50.00 0.00 4.80 0.00 0 50.00 0.00 5.40 0.00 0 50.00 0.00 6.00 0.00 0 50.00 0.00 6.60 0.00 0 50.00 0.00 7.20 0.00 0 50.00 0.00 7.80 0.00 0 50.00 0.00 8.40 0.00 0 50.00 0.00 9.00 0.01 0 50.00 0.01 9.60 0.01 0 50.00 0.01 10.20 0.01 0 50.00 0.01 10.80 0.01 1 50.00 0.01 11.40 0.02 1 50.01 0.02 12.00 0.11 44 50.36 0.03 12.60 0.02 152 51.31 0.03 13.20 0.01 120 51.02 0.03 13.80 0.01 82 50.68 0.03 14.40 0.01 42 50.35 0.03 15.00 0.01 5 50.04 0.02 15.60 0.01 0 50.00 0.01 16.20 0.00 0 50.00 0.00 16.80 0.00 0 50.00 0.00 17.40 0.00 0 50.00 0.00 18.00 0.00 0 50.00 0.00 18.60 0.00 0 50.00 0.00 19.20 0.00 0 50.00 0.00 19.80 0.00 0 50.00 0.00 20.40 0.00 0 50.00 0.00 21.00 0.00 0 50.00 0.00 21.60 0.00 0 50.00 0.00 22.20 0.00 0 50.00 0.00 22.80 0.00 0 50.00 0.00 23.40 0.00 0 50.00 0.00 24.00 0.00 0 50.00 0.00 24.60 0.00 0 50.00 0.00 25.20 0.00 0 50.00 0.00 25.80 0.00 0 50.00 0.00 26.40 0.00 0 50.00 0.00 27.00 0.00 0 50.00 0.00 27.60 0.00 0 50.00 0.00 Type III 24-hr 25-year Rainfall=5.84"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 141HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Stage-Discharge for Pond 3P: (2) 15.5' x 4.33' x 2.5' Leaching Facilities (per Dwelling) - Each with (2) Cultec Recharger 330XLHD Units (Stoneless) Elevation (feet) Discarded (cfs) 50.00 0.00 50.02 0.02 50.04 0.02 50.06 0.02 50.08 0.02 50.10 0.02 50.12 0.02 50.14 0.02 50.16 0.02 50.18 0.02 50.20 0.02 50.22 0.02 50.24 0.03 50.26 0.03 50.28 0.03 50.30 0.03 50.32 0.03 50.34 0.03 50.36 0.03 50.38 0.03 50.40 0.03 50.42 0.03 50.44 0.03 50.46 0.03 50.48 0.03 50.50 0.03 50.52 0.03 50.54 0.03 50.56 0.03 50.58 0.03 50.60 0.03 50.62 0.03 50.64 0.03 50.66 0.03 50.68 0.03 50.70 0.03 50.72 0.03 50.74 0.03 50.76 0.03 50.78 0.03 50.80 0.03 50.82 0.03 50.84 0.03 50.86 0.03 50.88 0.03 50.90 0.03 50.92 0.03 50.94 0.03 50.96 0.03 50.98 0.03 51.00 0.03 51.02 0.03 Elevation (feet) Discarded (cfs) 51.04 0.03 51.06 0.03 51.08 0.03 51.10 0.03 51.12 0.03 51.14 0.03 51.16 0.03 51.18 0.03 51.20 0.03 51.22 0.03 51.24 0.03 51.26 0.03 51.28 0.03 51.30 0.03 51.32 0.03 51.34 0.03 51.36 0.03 51.38 0.03 51.40 0.03 51.42 0.03 51.44 0.03 51.46 0.03 51.48 0.03 51.50 0.03 51.52 0.03 51.54 0.03 51.56 0.03 51.58 0.03 51.60 0.03 51.62 0.03 51.64 0.03 51.66 0.03 51.68 0.03 51.70 0.03 51.72 0.03 51.74 0.03 51.76 0.04 51.78 0.04 51.80 0.04 51.82 0.04 51.84 0.04 51.86 0.04 51.88 0.04 51.90 0.04 51.92 0.04 51.94 0.04 51.96 0.04 51.98 0.04 52.00 0.04 52.02 0.04 52.04 0.04 52.06 0.04 Elevation (feet) Discarded (cfs) 52.08 0.04 52.10 0.04 52.12 0.04 52.14 0.04 52.16 0.04 52.18 0.04 52.20 0.04 52.22 0.04 52.24 0.04 52.26 0.04 52.28 0.04 52.30 0.04 52.32 0.04 52.34 0.04 52.36 0.04 52.38 0.04 52.40 0.04 52.42 0.04 52.44 0.04 52.46 0.04 52.48 0.04 52.50 0.04 Type III 24-hr 25-year Rainfall=5.84"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 142HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 3P: (2) 15.5' x 4.33' x 2.5' Leaching Facilities (per Dwelling) - Each with (2) Cultec Recharger 330XLHD Units (Stoneless) Elevation (feet) Wetted (sq-ft) Storage (cubic-feet) 50.00 124 0 50.05 125 6 50.10 127 12 50.15 128 18 50.20 130 24 50.25 131 30 50.30 133 37 50.35 134 43 50.40 136 49 50.45 138 55 50.50 139 61 50.55 141 66 50.60 142 72 50.65 144 78 50.70 146 84 50.75 148 90 50.80 149 95 50.85 151 101 50.90 152 107 50.95 154 112 51.00 155 118 51.05 157 123 51.10 158 129 51.15 160 134 51.20 162 140 51.25 163 145 51.30 165 151 51.35 167 156 51.40 169 161 51.45 171 166 51.50 173 171 51.55 175 175 51.60 177 180 51.65 179 185 51.70 181 189 51.75 183 193 51.80 185 197 51.85 187 201 51.90 189 205 51.95 192 209 52.00 194 212 52.05 197 216 52.10 200 219 52.15 203 222 52.20 207 224 52.25 211 226 52.30 215 228 52.35 219 229 52.40 223 230 52.45 227 231 52.50 232 231 Type III 24-hr 100-year Rainfall=7.31"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 143HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Summary for Subcatchment 1AS: Runoff into Catch Basins - M1 Runoff = 1.33 cfs @ 12.10 hrs, Volume= 0.102 af, Depth= 2.23" Routed to Pond 1AR : (2) CB's in Pavement 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 6,286 98 Paved parking, HSG A 15,144 39 >75% Grass cover, Good, HSG A 2,500 36 Woods, Fair, HSG A 23,930 54 Weighted Average 17,644 73.73% Pervious Area 6,286 26.27% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.2 50 0.0600 0.16 Sheet Flow, Grass: Dense n= 0.240 P2= 3.36" 0.5 50 0.0600 1.71 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 0.3 60 0.0300 3.52 Shallow Concentrated Flow, Paved Kv= 20.3 fps 6.0 160 Total Subcatchment 1AS: Runoff into Catch Basins - M1 Runoff Hydrograph Time (hours) 26242220181614121086420Flow (cfs)1 0 Type III 24-hr 100-year Rainfall=7.31" Runoff Area=23,930 sf Runoff Volume=0.102 af Runoff Depth=2.23" Flow Length=160' Tc=6.0 min CN=54 1.33 cfs Type III 24-hr 100-year Rainfall=7.31"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 144HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Hydrograph for Subcatchment 1AS: Runoff into Catch Basins - M1 Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 0.00 0.00 0.00 0.00 0.30 0.02 0.00 0.00 0.60 0.04 0.00 0.00 0.90 0.07 0.00 0.00 1.20 0.09 0.00 0.00 1.50 0.11 0.00 0.00 1.80 0.13 0.00 0.00 2.10 0.15 0.00 0.00 2.40 0.18 0.00 0.00 2.70 0.20 0.00 0.00 3.00 0.22 0.00 0.00 3.30 0.25 0.00 0.00 3.60 0.28 0.00 0.00 3.90 0.30 0.00 0.00 4.20 0.33 0.00 0.00 4.50 0.36 0.00 0.00 4.80 0.39 0.00 0.00 5.10 0.43 0.00 0.00 5.40 0.46 0.00 0.00 5.70 0.49 0.00 0.00 6.00 0.53 0.00 0.00 6.30 0.56 0.00 0.00 6.60 0.60 0.00 0.00 6.90 0.65 0.00 0.00 7.20 0.69 0.00 0.00 7.50 0.74 0.00 0.00 7.80 0.80 0.00 0.00 8.10 0.85 0.00 0.00 8.40 0.92 0.00 0.00 8.70 0.99 0.00 0.00 9.00 1.07 0.00 0.00 9.30 1.15 0.00 0.00 9.60 1.25 0.00 0.00 9.90 1.35 0.00 0.00 10.20 1.46 0.00 0.00 10.50 1.58 0.00 0.00 10.80 1.72 0.00 0.00 11.10 1.88 0.00 0.01 11.40 2.09 0.02 0.03 11.70 2.48 0.06 0.11 12.00 3.65 0.36 0.67 12.30 4.83 0.84 0.68 12.60 5.22 1.03 0.26 12.90 5.43 1.13 0.19 13.20 5.59 1.22 0.15 13.50 5.73 1.29 0.14 13.80 5.85 1.36 0.12 14.10 5.96 1.42 0.11 14.40 6.06 1.48 0.10 14.70 6.16 1.53 0.10 15.00 6.24 1.58 0.09 15.30 6.32 1.62 0.08 Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 15.60 6.39 1.67 0.07 15.90 6.46 1.70 0.07 16.20 6.51 1.74 0.06 16.50 6.57 1.77 0.06 16.80 6.62 1.80 0.05 17.10 6.66 1.83 0.05 17.40 6.71 1.85 0.05 17.70 6.75 1.88 0.04 18.00 6.78 1.90 0.04 18.30 6.82 1.92 0.04 18.60 6.85 1.94 0.04 18.90 6.88 1.96 0.04 19.20 6.92 1.98 0.04 19.50 6.95 2.00 0.03 19.80 6.98 2.02 0.03 20.10 7.01 2.03 0.03 20.40 7.03 2.05 0.03 20.70 7.06 2.07 0.03 21.00 7.09 2.08 0.03 21.30 7.11 2.10 0.03 21.60 7.14 2.12 0.03 21.90 7.16 2.13 0.03 22.20 7.18 2.15 0.03 22.50 7.21 2.16 0.03 22.80 7.23 2.17 0.03 23.10 7.25 2.19 0.02 23.40 7.27 2.20 0.02 23.70 7.29 2.21 0.02 24.00 7.31 2.23 0.02 24.30 7.31 2.23 0.00 24.60 7.31 2.23 0.00 24.90 7.31 2.23 0.00 25.20 7.31 2.23 0.00 25.50 7.31 2.23 0.00 25.80 7.31 2.23 0.00 26.10 7.31 2.23 0.00 26.40 7.31 2.23 0.00 26.70 7.31 2.23 0.00 27.00 7.31 2.23 0.00 27.30 7.31 2.23 0.00 27.60 7.31 2.23 0.00 27.90 7.31 2.23 0.00 Type III 24-hr 100-year Rainfall=7.31"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 145HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Summary for Subcatchment 1BS: Direct Runoff into Swale - M1 Runoff = 0.10 cfs @ 12.13 hrs, Volume= 0.013 af, Depth= 0.88" Routed to Pond 1AP : Grassed Swale Leaching - M1 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 7,973 39 >75% Grass cover, Good, HSG A 7,973 100.00% 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 1BS: Direct Runoff into Swale - M1 Runoff Hydrograph Time (hours) 26242220181614121086420Flow (cfs)0.11 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 100-year Rainfall=7.31" Runoff Area=7,973 sf Runoff Volume=0.013 af Runoff Depth=0.88" Tc=6.0 min CN=39 0.10 cfs Type III 24-hr 100-year Rainfall=7.31"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 146HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Hydrograph for Subcatchment 1BS: Direct Runoff into Swale - M1 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 0.08 12.60 5.22 0.25 0.04 12.90 5.43 0.29 0.03 13.20 5.59 0.33 0.02 13.50 5.73 0.37 0.02 13.80 5.85 0.40 0.02 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 0.01 Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 15.60 6.39 0.56 0.01 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 0.00 23.10 7.25 0.86 0.00 23.40 7.27 0.87 0.00 23.70 7.29 0.88 0.00 24.00 7.31 0.88 0.00 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.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 147HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Summary for Subcatchment 2AS: Runoff into Catch Basins - M2 Runoff = 6.59 cfs @ 12.12 hrs, Volume= 0.530 af, Depth= 2.23" Routed to Pond 2AR : (7) CB's in Pavement 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 33,633 98 Paved parking, HSG A 48,641 39 >75% Grass cover, Good, HSG A 42,245 36 Woods, Fair, HSG A 124,519 54 Weighted Average 90,886 72.99% Pervious Area 33,633 27.01% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.5 50 0.0500 0.15 Sheet Flow, Grass: Dense n= 0.240 P2= 3.36" 1.5 90 0.0200 0.99 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 0.4 130 0.0600 4.97 Shallow Concentrated Flow, Paved Kv= 20.3 fps 7.4 270 Total Subcatchment 2AS: Runoff into Catch Basins - M2 Runoff Hydrograph Time (hours) 26242220181614121086420Flow (cfs)7 6 5 4 3 2 1 0 Type III 24-hr 100-year Rainfall=7.31" Runoff Area=124,519 sf Runoff Volume=0.530 af Runoff Depth=2.23" Flow Length=270' Tc=7.4 min CN=54 6.59 cfs Type III 24-hr 100-year Rainfall=7.31"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 148HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Hydrograph for Subcatchment 2AS: Runoff into Catch Basins - M2 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 0.04 11.40 2.09 0.02 0.14 11.70 2.48 0.06 0.53 12.00 3.65 0.36 2.95 12.30 4.83 0.84 3.75 12.60 5.22 1.03 1.46 12.90 5.43 1.13 1.00 13.20 5.59 1.22 0.79 13.50 5.73 1.29 0.72 13.80 5.85 1.36 0.65 14.10 5.96 1.42 0.58 14.40 6.06 1.48 0.54 14.70 6.16 1.53 0.50 15.00 6.24 1.58 0.47 15.30 6.32 1.62 0.43 Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 15.60 6.39 1.67 0.39 15.90 6.46 1.70 0.35 16.20 6.51 1.74 0.32 16.50 6.57 1.77 0.30 16.80 6.62 1.80 0.28 17.10 6.66 1.83 0.27 17.40 6.71 1.85 0.25 17.70 6.75 1.88 0.23 18.00 6.78 1.90 0.21 18.30 6.82 1.92 0.20 18.60 6.85 1.94 0.20 18.90 6.88 1.96 0.19 19.20 6.92 1.98 0.19 19.50 6.95 2.00 0.18 19.80 6.98 2.02 0.18 20.10 7.01 2.03 0.17 20.40 7.03 2.05 0.17 20.70 7.06 2.07 0.16 21.00 7.09 2.08 0.16 21.30 7.11 2.10 0.15 21.60 7.14 2.12 0.15 21.90 7.16 2.13 0.15 22.20 7.18 2.15 0.14 22.50 7.21 2.16 0.14 22.80 7.23 2.17 0.13 23.10 7.25 2.19 0.13 23.40 7.27 2.20 0.12 23.70 7.29 2.21 0.12 24.00 7.31 2.23 0.12 24.30 7.31 2.23 0.00 24.60 7.31 2.23 0.00 24.90 7.31 2.23 0.00 25.20 7.31 2.23 0.00 25.50 7.31 2.23 0.00 25.80 7.31 2.23 0.00 26.10 7.31 2.23 0.00 26.40 7.31 2.23 0.00 26.70 7.31 2.23 0.00 27.00 7.31 2.23 0.00 27.30 7.31 2.23 0.00 27.60 7.31 2.23 0.00 27.90 7.31 2.23 0.00 Type III 24-hr 100-year Rainfall=7.31"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 149HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Summary for Subcatchment 2BS: Direct Runoff into Swale - M2 Runoff = 1.09 cfs @ 12.12 hrs, Volume= 0.115 af, Depth= 1.13" Routed to Pond 2AP : Grassed Swale Leaching - M2 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 25,000 36 Woods, Fair, HSG A 24,058 39 >75% Grass cover, Good, HSG A 4,089 98 Paved parking, HSG A 53,147 42 Weighted Average 49,058 92.31% Pervious Area 4,089 7.69% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 3.5 50 0.1600 0.24 Sheet Flow, Grass: Dense n= 0.240 P2= 3.36" 2.8 330 0.0800 1.98 Shallow Concentrated Flow, Short Grass Pasture Kv= 7.0 fps 6.3 380 Total Subcatchment 2BS: Direct Runoff into Swale - M2 Runoff Hydrograph Time (hours) 26242220181614121086420Flow (cfs)1 0 Type III 24-hr 100-year Rainfall=7.31" Runoff Area=53,147 sf Runoff Volume=0.115 af Runoff Depth=1.13" Flow Length=380' Tc=6.3 min CN=42 1.09 cfs Type III 24-hr 100-year Rainfall=7.31"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 150HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Hydrograph for Subcatchment 2BS: Direct Runoff into Swale - M2 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 0.28 12.30 4.83 0.27 0.75 12.60 5.22 0.37 0.32 12.90 5.43 0.43 0.24 13.20 5.59 0.48 0.19 13.50 5.73 0.52 0.18 13.80 5.85 0.57 0.17 14.10 5.96 0.60 0.15 14.40 6.06 0.64 0.14 14.70 6.16 0.67 0.13 15.00 6.24 0.70 0.13 15.30 6.32 0.73 0.12 Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 15.60 6.39 0.76 0.11 15.90 6.46 0.78 0.10 16.20 6.51 0.80 0.09 16.50 6.57 0.82 0.08 16.80 6.62 0.84 0.08 17.10 6.66 0.86 0.07 17.40 6.71 0.88 0.07 17.70 6.75 0.89 0.06 18.00 6.78 0.91 0.06 18.30 6.82 0.92 0.06 18.60 6.85 0.93 0.06 18.90 6.88 0.95 0.05 19.20 6.92 0.96 0.05 19.50 6.95 0.97 0.05 19.80 6.98 0.99 0.05 20.10 7.01 1.00 0.05 20.40 7.03 1.01 0.05 20.70 7.06 1.02 0.05 21.00 7.09 1.03 0.05 21.30 7.11 1.04 0.04 21.60 7.14 1.05 0.04 21.90 7.16 1.06 0.04 22.20 7.18 1.07 0.04 22.50 7.21 1.08 0.04 22.80 7.23 1.09 0.04 23.10 7.25 1.10 0.04 23.40 7.27 1.11 0.04 23.70 7.29 1.12 0.03 24.00 7.31 1.13 0.03 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.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 151HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Summary for Subcatchment 3S: Roof Runoff (per Dwelling) Runoff = 0.21 cfs @ 12.08 hrs, Volume= 0.017 af, Depth= 7.07" Routed to Pond 3P : (2) 15.5' x 4.33' x 2.5' Leaching Facilities (per Dwelling) - Each with (2) Cultec Recharger 330XLHD Units (Stoneless) 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 1,288 98 Roofs, HSG A 1,288 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 0.1 20 0.4000 3.33 Sheet Flow, Smooth surfaces n= 0.011 P2= 3.25" 0.1 20 Total, Increased to minimum Tc = 6.0 min Subcatchment 3S: Roof Runoff (per Dwelling) Runoff Hydrograph Time (hours) 26242220181614121086420Flow (cfs)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 100-year Rainfall=7.31" Runoff Area=1,288 sf Runoff Volume=0.017 af Runoff Depth=7.07" Flow Length=20' Slope=0.4000 '/' Tc=6.0 min CN=98 0.21 cfs Type III 24-hr 100-year Rainfall=7.31"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 152HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Hydrograph for Subcatchment 3S: Roof Runoff (per Dwelling) 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 0.01 0.00 1.50 0.11 0.02 0.00 1.80 0.13 0.03 0.00 2.10 0.15 0.04 0.00 2.40 0.18 0.05 0.00 2.70 0.20 0.07 0.00 3.00 0.22 0.09 0.00 3.30 0.25 0.11 0.00 3.60 0.28 0.13 0.00 3.90 0.30 0.15 0.00 4.20 0.33 0.17 0.00 4.50 0.36 0.20 0.00 4.80 0.39 0.22 0.00 5.10 0.43 0.25 0.00 5.40 0.46 0.28 0.00 5.70 0.49 0.31 0.00 6.00 0.53 0.34 0.00 6.30 0.56 0.38 0.00 6.60 0.60 0.41 0.00 6.90 0.65 0.45 0.00 7.20 0.69 0.50 0.00 7.50 0.74 0.54 0.00 7.80 0.80 0.59 0.01 8.10 0.85 0.65 0.01 8.40 0.92 0.71 0.01 8.70 0.99 0.78 0.01 9.00 1.07 0.85 0.01 9.30 1.15 0.94 0.01 9.60 1.25 1.03 0.01 9.90 1.35 1.13 0.01 10.20 1.46 1.24 0.01 10.50 1.58 1.36 0.01 10.80 1.72 1.50 0.01 11.10 1.88 1.66 0.02 11.40 2.09 1.87 0.02 11.70 2.48 2.25 0.05 12.00 3.65 3.42 0.13 12.30 4.83 4.59 0.08 12.60 5.22 4.98 0.03 12.90 5.43 5.19 0.02 13.20 5.59 5.35 0.02 13.50 5.73 5.49 0.01 13.80 5.85 5.62 0.01 14.10 5.96 5.73 0.01 14.40 6.06 5.83 0.01 14.70 6.16 5.92 0.01 15.00 6.24 6.01 0.01 15.30 6.32 6.08 0.01 Time (hours) Precip. (inches) Excess (inches) Runoff (cfs) 15.60 6.39 6.16 0.01 15.90 6.46 6.22 0.01 16.20 6.51 6.28 0.01 16.50 6.57 6.33 0.01 16.80 6.62 6.38 0.00 17.10 6.66 6.42 0.00 17.40 6.71 6.47 0.00 17.70 6.75 6.51 0.00 18.00 6.78 6.54 0.00 18.30 6.82 6.58 0.00 18.60 6.85 6.61 0.00 18.90 6.88 6.65 0.00 19.20 6.92 6.68 0.00 19.50 6.95 6.71 0.00 19.80 6.98 6.74 0.00 20.10 7.01 6.77 0.00 20.40 7.03 6.79 0.00 20.70 7.06 6.82 0.00 21.00 7.09 6.85 0.00 21.30 7.11 6.87 0.00 21.60 7.14 6.90 0.00 21.90 7.16 6.92 0.00 22.20 7.18 6.95 0.00 22.50 7.21 6.97 0.00 22.80 7.23 6.99 0.00 23.10 7.25 7.01 0.00 23.40 7.27 7.03 0.00 23.70 7.29 7.05 0.00 24.00 7.31 7.07 0.00 24.30 7.31 7.07 0.00 24.60 7.31 7.07 0.00 24.90 7.31 7.07 0.00 25.20 7.31 7.07 0.00 25.50 7.31 7.07 0.00 25.80 7.31 7.07 0.00 26.10 7.31 7.07 0.00 26.40 7.31 7.07 0.00 26.70 7.31 7.07 0.00 27.00 7.31 7.07 0.00 27.30 7.31 7.07 0.00 27.60 7.31 7.07 0.00 27.90 7.31 7.07 0.00 Type III 24-hr 100-year Rainfall=7.31"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 153HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Summary for Pond 1AP: Grassed Swale Leaching - M1 Inflow Area = 0.732 ac, 19.70% Impervious, Inflow Depth = 1.89" for 100-year event Inflow = 1.43 cfs @ 12.10 hrs, Volume= 0.115 af Outflow = 1.32 cfs @ 12.15 hrs, Volume= 0.110 af, Atten= 7%, Lag= 3.1 min Discarded = 0.04 cfs @ 12.15 hrs, Volume= 0.048 af Secondary = 1.29 cfs @ 12.15 hrs, Volume= 0.062 af Routed to Pond 1BP : (1) 28'x14' Leaching Facility - (2) 6'x6' Leach Pits, 14' O.C. with stone around Routing by Dyn-Stor-Ind method, Time Span= 0.00-27.99 hrs, dt= 0.03 hrs Peak Elev= 50.13' @ 12.15 hrs Surf.Area= 654 sf Storage= 780 cf Plug-Flow detention time= 112.2 min calculated for 0.110 af (96% of inflow) Center-of-Mass det. time= 89.9 min ( 962.6 - 872.7 ) Volume Invert Avail.Storage Storage Description #1 48.50' 2,417 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) 48.50 319 92.0 0 0 319 50.00 624 111.0 695 695 662 50.50 738 117.0 340 1,035 784 52.00 1,118 136.0 1,382 2,417 1,212 Device Routing Invert Outlet Devices #1 Discarded 48.50'2.410 in/hr Exfiltration over Wetted area Phase-In= 0.01' #2 Secondary 50.00'24.0" x 24.0" Horiz. Orifice/Grate C= 0.600 Limited to weir flow at low heads Discarded OutFlow Max=0.04 cfs @ 12.15 hrs HW=50.13' (Free Discharge) 1=Exfiltration (Exfiltration Controls 0.04 cfs) Secondary OutFlow Max=1.27 cfs @ 12.15 hrs HW=50.13' TW=42.43' (Dynamic Tailwater) 2=Orifice/Grate (Weir Controls 1.27 cfs @ 1.19 fps) Type III 24-hr 100-year Rainfall=7.31"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 154HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Pond 1AP: Grassed Swale Leaching - M1 Inflow Outflow Discarded Secondary Hydrograph Time (hours) 26242220181614121086420Flow (cfs)1 0 Inflow Area=0.732 ac Peak Elev=50.13' Storage=780 cf 1.43 cfs 1.32 cfs 0.04 cfs 1.29 cfs Pond 1AP: Grassed Swale Leaching - M1 Total Discarded Secondary Stage-Discharge Discharge (cfs) 26242220181614121086420Elevation (feet)52 51 50 49 Exfiltration Orifice/Grate Type III 24-hr 100-year Rainfall=7.31"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 155HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Pond 1AP: Grassed Swale Leaching - M1 Surface Wetted Storage Stage-Area-Storage Storage (cubic-feet) 2,0001,5001,0005000 Surface/Horizontal/Wetted Area (sq-ft) 1,2001,0008006004002000 Elevation (feet)52 51 50 49 Grassed Swale Type III 24-hr 100-year Rainfall=7.31"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 156HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Hydrograph for Pond 1AP: Grassed Swale Leaching - M1 Time (hours) Inflow (cfs) Storage (cubic-feet) Elevation (feet) Outflow (cfs) Discarded (cfs) Secondary (cfs) 0.00 0.00 0 48.50 0.00 0.00 0.00 0.60 0.00 0 48.50 0.00 0.00 0.00 1.20 0.00 0 48.50 0.00 0.00 0.00 1.80 0.00 0 48.50 0.00 0.00 0.00 2.40 0.00 0 48.50 0.00 0.00 0.00 3.00 0.00 0 48.50 0.00 0.00 0.00 3.60 0.00 0 48.50 0.00 0.00 0.00 4.20 0.00 0 48.50 0.00 0.00 0.00 4.80 0.00 0 48.50 0.00 0.00 0.00 5.40 0.00 0 48.50 0.00 0.00 0.00 6.00 0.00 0 48.50 0.00 0.00 0.00 6.60 0.00 0 48.50 0.00 0.00 0.00 7.20 0.00 0 48.50 0.00 0.00 0.00 7.80 0.00 0 48.50 0.00 0.00 0.00 8.40 0.00 0 48.50 0.00 0.00 0.00 9.00 0.00 0 48.50 0.00 0.00 0.00 9.60 0.00 0 48.50 0.00 0.00 0.00 10.20 0.00 0 48.50 0.00 0.00 0.00 10.80 0.00 0 48.50 0.00 0.00 0.00 11.40 0.03 6 48.52 0.02 0.02 0.00 12.00 0.68 336 49.35 0.03 0.03 0.00 12.60 0.29 725 50.05 0.32 0.04 0.28 13.20 0.17 714 50.03 0.17 0.04 0.14 13.80 0.14 711 50.03 0.15 0.04 0.11 14.40 0.12 708 50.02 0.12 0.04 0.08 15.00 0.11 707 50.02 0.11 0.04 0.07 15.60 0.09 704 50.02 0.09 0.04 0.05 16.20 0.07 702 50.01 0.07 0.04 0.04 16.80 0.06 701 50.01 0.06 0.04 0.03 17.40 0.06 700 50.01 0.06 0.04 0.02 18.00 0.05 698 50.01 0.05 0.04 0.01 18.60 0.04 697 50.00 0.05 0.04 0.01 19.20 0.04 697 50.00 0.04 0.04 0.01 19.80 0.04 696 50.00 0.04 0.04 0.00 20.40 0.04 695 50.00 0.04 0.04 0.00 21.00 0.04 694 50.00 0.04 0.04 0.00 21.60 0.03 691 49.99 0.04 0.04 0.00 22.20 0.03 683 49.98 0.04 0.04 0.00 22.80 0.03 672 49.96 0.04 0.04 0.00 23.40 0.03 658 49.94 0.04 0.04 0.00 24.00 0.03 640 49.91 0.04 0.04 0.00 24.60 0.00 573 49.80 0.03 0.03 0.00 25.20 0.00 501 49.67 0.03 0.03 0.00 25.80 0.00 433 49.54 0.03 0.03 0.00 26.40 0.00 369 49.41 0.03 0.03 0.00 27.00 0.00 308 49.29 0.03 0.03 0.00 27.60 0.00 250 49.16 0.03 0.03 0.00 Type III 24-hr 100-year Rainfall=7.31"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 157HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Stage-Discharge for Pond 1AP: Grassed Swale Leaching - M1 Elevation (feet) Discharge (cfs) Discarded (cfs) Secondary (cfs) 48.50 0.00 0.00 0.00 48.55 0.02 0.02 0.00 48.60 0.02 0.02 0.00 48.65 0.02 0.02 0.00 48.70 0.02 0.02 0.00 48.75 0.02 0.02 0.00 48.80 0.02 0.02 0.00 48.85 0.02 0.02 0.00 48.90 0.02 0.02 0.00 48.95 0.02 0.02 0.00 49.00 0.02 0.02 0.00 49.05 0.02 0.02 0.00 49.10 0.03 0.03 0.00 49.15 0.03 0.03 0.00 49.20 0.03 0.03 0.00 49.25 0.03 0.03 0.00 49.30 0.03 0.03 0.00 49.35 0.03 0.03 0.00 49.40 0.03 0.03 0.00 49.45 0.03 0.03 0.00 49.50 0.03 0.03 0.00 49.55 0.03 0.03 0.00 49.60 0.03 0.03 0.00 49.65 0.03 0.03 0.00 49.70 0.03 0.03 0.00 49.75 0.03 0.03 0.00 49.80 0.03 0.03 0.00 49.85 0.03 0.03 0.00 49.90 0.04 0.04 0.00 49.95 0.04 0.04 0.00 50.00 0.04 0.04 0.00 50.05 0.33 0.04 0.29 50.10 0.87 0.04 0.83 50.15 1.56 0.04 1.52 50.20 2.38 0.04 2.34 50.25 3.31 0.04 3.27 50.30 4.34 0.04 4.30 50.35 5.46 0.04 5.42 50.40 6.66 0.04 6.62 50.45 7.94 0.04 7.90 50.50 9.29 0.04 9.25 50.55 10.71 0.04 10.67 50.60 12.20 0.05 12.16 50.65 13.76 0.05 13.71 50.70 15.37 0.05 15.32 50.75 16.73 0.05 16.68 50.80 17.27 0.05 17.23 50.85 17.81 0.05 17.76 50.90 18.32 0.05 18.27 50.95 18.82 0.05 18.77 51.00 19.31 0.05 19.26 51.05 19.79 0.05 19.74 Elevation (feet) Discharge (cfs) Discarded (cfs) Secondary (cfs) 51.10 20.25 0.05 20.20 51.15 20.71 0.05 20.65 51.20 21.15 0.05 21.10 51.25 21.59 0.06 21.53 51.30 22.02 0.06 21.96 51.35 22.43 0.06 22.38 51.40 22.85 0.06 22.79 51.45 23.25 0.06 23.19 51.50 23.65 0.06 23.59 51.55 24.04 0.06 23.98 51.60 24.42 0.06 24.36 51.65 24.80 0.06 24.74 51.70 25.17 0.06 25.11 51.75 25.54 0.06 25.48 51.80 25.90 0.06 25.84 51.85 26.26 0.07 26.20 51.90 26.61 0.07 26.55 51.95 26.96 0.07 26.89 52.00 27.31 0.07 27.24 Type III 24-hr 100-year Rainfall=7.31"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 158HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 1AP: Grassed Swale Leaching - M1 Elevation (feet) Surface (sq-ft) Wetted (sq-ft) Storage (cubic-feet) 48.50 319 319 0 48.60 336 340 33 48.70 354 361 67 48.80 372 382 104 48.90 390 404 142 49.00 409 426 182 49.10 429 448 224 49.20 449 471 267 49.30 469 494 313 49.40 490 517 361 49.50 511 540 411 49.60 533 564 463 49.70 555 588 518 49.80 577 612 574 49.90 601 637 633 50.00 624 662 695 50.10 646 686 758 50.20 668 710 824 50.30 691 735 892 50.40 714 759 962 50.50 738 784 1,035 50.60 761 811 1,110 50.70 784 838 1,187 50.80 808 865 1,266 50.90 832 892 1,348 51.00 856 920 1,433 51.10 881 948 1,520 51.20 906 976 1,609 51.30 931 1,004 1,701 51.40 957 1,033 1,795 51.50 983 1,062 1,892 51.60 1,009 1,091 1,992 51.70 1,036 1,121 2,094 51.80 1,063 1,151 2,199 51.90 1,090 1,181 2,306 52.00 1,118 1,212 2,417 Type III 24-hr 100-year Rainfall=7.31"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 159HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Summary for Pond 1AR: (2) CB's in Pavement Inflow Area = 0.549 ac, 26.27% Impervious, Inflow Depth = 2.23" for 100-year event Inflow = 1.33 cfs @ 12.10 hrs, Volume= 0.102 af Outflow = 1.33 cfs @ 12.10 hrs, Volume= 0.102 af, Atten= 0%, Lag= 0.0 min Primary = 1.33 cfs @ 12.10 hrs, Volume= 0.102 af Routed to Pond 1AP : Grassed Swale Leaching - M1 Routing by Dyn-Stor-Ind method, Time Span= 0.00-27.99 hrs, dt= 0.03 hrs Peak Elev= 51.77' @ 12.10 hrs Flood Elev= 53.80' Device Routing Invert Outlet Devices #1 Primary 51.30'12.0" Round Culvert X 2.00 L= 50.0' CPP, projecting, no headwall, Ke= 0.900 Inlet / Outlet Invert= 51.30' / 50.50' S= 0.0160 '/' Cc= 0.900 n= 0.020 Corrugated PE, corrugated interior, Flow Area= 0.79 sf Primary OutFlow Max=1.32 cfs @ 12.10 hrs HW=51.77' TW=50.01' (Dynamic Tailwater) 1=Culvert (Inlet Controls 1.32 cfs @ 1.84 fps) Pond 1AR: (2) CB's in Pavement Inflow Primary Hydrograph Time (hours) 26242220181614121086420Flow (cfs)1 0 Inflow Area=0.549 ac Peak Elev=51.77' 12.0" Round Culvert x 2.00 n=0.020 L=50.0' S=0.0160 '/' 1.33 cfs 1.33 cfs Type III 24-hr 100-year Rainfall=7.31"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 160HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Pond 1AR: (2) CB's in Pavement Primary Stage-Discharge Discharge (cfs) 876543210Elevation (feet)53 52 Culvert Pond 1AR: (2) CB's in Pavement Storage Stage-Area-Storage Storage (acre-feet) 0Elevation (feet)53 52 Flood Elevation Type III 24-hr 100-year Rainfall=7.31"8807.Recharge(10.19.22) 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 Pond 1AR: (2) CB's in Pavement Time (hours) Inflow (cfs) Elevation (feet) Primary (cfs) 0.00 0.00 51.30 0.00 0.30 0.00 51.30 0.00 0.60 0.00 51.30 0.00 0.90 0.00 51.30 0.00 1.20 0.00 51.30 0.00 1.50 0.00 51.30 0.00 1.80 0.00 51.30 0.00 2.10 0.00 51.30 0.00 2.40 0.00 51.30 0.00 2.70 0.00 51.30 0.00 3.00 0.00 51.30 0.00 3.30 0.00 51.30 0.00 3.60 0.00 51.30 0.00 3.90 0.00 51.30 0.00 4.20 0.00 51.30 0.00 4.50 0.00 51.30 0.00 4.80 0.00 51.30 0.00 5.10 0.00 51.30 0.00 5.40 0.00 51.30 0.00 5.70 0.00 51.30 0.00 6.00 0.00 51.30 0.00 6.30 0.00 51.30 0.00 6.60 0.00 51.30 0.00 6.90 0.00 51.30 0.00 7.20 0.00 51.30 0.00 7.50 0.00 51.30 0.00 7.80 0.00 51.30 0.00 8.10 0.00 51.30 0.00 8.40 0.00 51.30 0.00 8.70 0.00 51.30 0.00 9.00 0.00 51.30 0.00 9.30 0.00 51.30 0.00 9.60 0.00 51.30 0.00 9.90 0.00 51.30 0.00 10.20 0.00 51.30 0.00 10.50 0.00 51.30 0.00 10.80 0.00 51.30 0.00 11.10 0.01 51.34 0.01 11.40 0.03 51.37 0.03 11.70 0.11 51.43 0.11 12.00 0.67 51.62 0.67 12.30 0.68 51.63 0.68 12.60 0.26 51.50 0.26 12.90 0.19 51.47 0.19 13.20 0.15 51.45 0.15 13.50 0.14 51.44 0.14 13.80 0.12 51.44 0.12 14.10 0.11 51.43 0.11 14.40 0.10 51.42 0.10 14.70 0.10 51.42 0.10 15.00 0.09 51.42 0.09 15.30 0.08 51.41 0.08 Time (hours) Inflow (cfs) Elevation (feet) Primary (cfs) 15.60 0.07 51.41 0.07 15.90 0.07 51.40 0.07 16.20 0.06 51.40 0.06 16.50 0.06 51.39 0.06 16.80 0.05 51.39 0.05 17.10 0.05 51.39 0.05 17.40 0.05 51.39 0.05 17.70 0.04 51.38 0.04 18.00 0.04 51.38 0.04 18.30 0.04 51.38 0.04 18.60 0.04 51.38 0.04 18.90 0.04 51.38 0.04 19.20 0.04 51.37 0.04 19.50 0.03 51.37 0.03 19.80 0.03 51.37 0.03 20.10 0.03 51.37 0.03 20.40 0.03 51.37 0.03 20.70 0.03 51.37 0.03 21.00 0.03 51.37 0.03 21.30 0.03 51.37 0.03 21.60 0.03 51.37 0.03 21.90 0.03 51.37 0.03 22.20 0.03 51.37 0.03 22.50 0.03 51.36 0.03 22.80 0.03 51.36 0.03 23.10 0.02 51.36 0.02 23.40 0.02 51.36 0.02 23.70 0.02 51.36 0.02 24.00 0.02 51.36 0.02 24.30 0.00 51.30 0.00 24.60 0.00 51.30 0.00 24.90 0.00 51.30 0.00 25.20 0.00 51.30 0.00 25.50 0.00 51.30 0.00 25.80 0.00 51.30 0.00 26.10 0.00 51.30 0.00 26.40 0.00 51.30 0.00 26.70 0.00 51.30 0.00 27.00 0.00 51.30 0.00 27.30 0.00 51.30 0.00 27.60 0.00 51.30 0.00 27.90 0.00 51.30 0.00 Type III 24-hr 100-year Rainfall=7.31"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 162HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Stage-Discharge for Pond 1AR: (2) CB's in Pavement Elevation (feet) Primary (cfs) 51.30 0.00 51.32 0.00 51.34 0.01 51.36 0.02 51.38 0.04 51.40 0.07 51.42 0.10 51.44 0.13 51.46 0.17 51.48 0.22 51.50 0.27 51.52 0.32 51.54 0.38 51.56 0.44 51.58 0.51 51.60 0.58 51.62 0.66 51.64 0.74 51.66 0.82 51.68 0.91 51.70 1.00 51.72 1.09 51.74 1.19 51.76 1.29 51.78 1.39 51.80 1.49 51.82 1.60 51.84 1.71 51.86 1.82 51.88 1.93 51.90 2.05 51.92 2.17 51.94 2.28 51.96 2.40 51.98 2.52 52.00 2.64 52.02 2.76 52.04 2.88 52.06 3.00 52.08 3.12 52.10 3.24 52.12 3.36 52.14 3.47 52.16 3.58 52.18 3.69 52.20 3.80 52.22 3.90 52.24 3.99 52.26 4.08 52.28 4.16 52.30 4.22 52.32 4.31 Elevation (feet) Primary (cfs) 52.34 4.39 52.36 4.47 52.38 4.55 52.40 4.63 52.42 4.70 52.44 4.78 52.46 4.85 52.48 4.92 52.50 5.00 52.52 5.07 52.54 5.14 52.56 5.21 52.58 5.27 52.60 5.34 52.62 5.41 52.64 5.47 52.66 5.54 52.68 5.60 52.70 5.66 52.72 5.73 52.74 5.79 52.76 5.85 52.78 5.91 52.80 5.97 52.82 6.03 52.84 6.09 52.86 6.15 52.88 6.21 52.90 6.26 52.92 6.32 52.94 6.38 52.96 6.43 52.98 6.47 53.00 6.51 53.02 6.56 53.04 6.60 53.06 6.64 53.08 6.69 53.10 6.73 53.12 6.77 53.14 6.81 53.16 6.85 53.18 6.89 53.20 6.94 53.22 6.98 53.24 7.02 53.26 7.06 53.28 7.10 53.30 7.14 53.32 7.18 53.34 7.22 53.36 7.25 Elevation (feet) Primary (cfs) 53.38 7.29 53.40 7.33 53.42 7.37 53.44 7.41 53.46 7.45 53.48 7.49 53.50 7.52 53.52 7.56 53.54 7.60 53.56 7.63 53.58 7.67 53.60 7.71 53.62 7.75 53.64 7.78 53.66 7.82 53.68 7.85 53.70 7.89 53.72 7.93 53.74 7.96 53.76 8.00 53.78 8.03 53.80 8.07 Type III 24-hr 100-year Rainfall=7.31"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 163HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 1AR: (2) CB's in Pavement Elevation (feet) Storage (acre-feet) 51.30 0.000 51.32 0.000 51.34 0.000 51.36 0.000 51.38 0.000 51.40 0.000 51.42 0.000 51.44 0.000 51.46 0.000 51.48 0.000 51.50 0.000 51.52 0.000 51.54 0.000 51.56 0.000 51.58 0.000 51.60 0.000 51.62 0.000 51.64 0.000 51.66 0.000 51.68 0.000 51.70 0.000 51.72 0.000 51.74 0.000 51.76 0.000 51.78 0.000 51.80 0.000 51.82 0.000 51.84 0.000 51.86 0.000 51.88 0.000 51.90 0.000 51.92 0.000 51.94 0.000 51.96 0.000 51.98 0.000 52.00 0.000 52.02 0.000 52.04 0.000 52.06 0.000 52.08 0.000 52.10 0.000 52.12 0.000 52.14 0.000 52.16 0.000 52.18 0.000 52.20 0.000 52.22 0.000 52.24 0.000 52.26 0.000 52.28 0.000 52.30 0.000 52.32 0.000 Elevation (feet) Storage (acre-feet) 52.34 0.000 52.36 0.000 52.38 0.000 52.40 0.000 52.42 0.000 52.44 0.000 52.46 0.000 52.48 0.000 52.50 0.000 52.52 0.000 52.54 0.000 52.56 0.000 52.58 0.000 52.60 0.000 52.62 0.000 52.64 0.000 52.66 0.000 52.68 0.000 52.70 0.000 52.72 0.000 52.74 0.000 52.76 0.000 52.78 0.000 52.80 0.000 52.82 0.000 52.84 0.000 52.86 0.000 52.88 0.000 52.90 0.000 52.92 0.000 52.94 0.000 52.96 0.000 52.98 0.000 53.00 0.000 53.02 0.000 53.04 0.000 53.06 0.000 53.08 0.000 53.10 0.000 53.12 0.000 53.14 0.000 53.16 0.000 53.18 0.000 53.20 0.000 53.22 0.000 53.24 0.000 53.26 0.000 53.28 0.000 53.30 0.000 53.32 0.000 53.34 0.000 53.36 0.000 Elevation (feet) Storage (acre-feet) 53.38 0.000 53.40 0.000 53.42 0.000 53.44 0.000 53.46 0.000 53.48 0.000 53.50 0.000 53.52 0.000 53.54 0.000 53.56 0.000 53.58 0.000 53.60 0.000 53.62 0.000 53.64 0.000 53.66 0.000 53.68 0.000 53.70 0.000 53.72 0.000 53.74 0.000 53.76 0.000 53.78 0.000 53.80 0.000 Type III 24-hr 100-year Rainfall=7.31"8807.Recharge(10.19.22) 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 1BP: (1) 28'x14' Leaching Facility - (2) 6'x6' Leach Pits, 14' O.C. with stone around Inflow = 1.29 cfs @ 12.15 hrs, Volume= 0.062 af Outflow = 0.16 cfs @ 13.01 hrs, Volume= 0.062 af, Atten= 87%, Lag= 51.5 min Discarded = 0.16 cfs @ 13.01 hrs, Volume= 0.062 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-27.99 hrs, dt= 0.03 hrs Peak Elev= 46.91' @ 13.01 hrs Surf.Area= 392 sf Storage= 1,085 cf Plug-Flow detention time= 82.3 min calculated for 0.062 af (100% of inflow) Center-of-Mass det. time= 82.2 min ( 888.4 - 806.2 ) Volume Invert Avail.Storage Storage Description #1 41.50' 967 cf 14.00'W x 28.00'L x 6.50'H Prismatoid 2,548 cf Overall - 398 cf Embedded = 2,150 cf x 45.0% Voids #2 42.00' 339 cf 6.00'D x 6.00'H Vertical Cone/Cylinder x 2 Inside #1 398 cf Overall - 3.0" Wall Thickness = 339 cf 1,307 cf Total Available Storage Device Routing Invert Outlet Devices #1 Discarded 41.50'8.270 in/hr Exfiltration over Wetted area Phase-In= 0.01' Discarded OutFlow Max=0.16 cfs @ 13.01 hrs HW=46.91' (Free Discharge) 1=Exfiltration (Exfiltration Controls 0.16 cfs) Pond 1BP: (1) 28'x14' Leaching Facility - (2) 6'x6' Leach Pits, 14' O.C. with stone around Inflow Discarded Hydrograph Time (hours) 26242220181614121086420Flow (cfs)1 0 Peak Elev=46.91' Storage=1,085 cf 1.29 cfs 0.16 cfs Type III 24-hr 100-year Rainfall=7.31"8807.Recharge(10.19.22) 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 1BP: (1) 28'x14' Leaching Facility - (2) 6'x6' Leach Pits, 14' O.C. with stone around Discarded Stage-Discharge Discharge (cfs) 0.170.160.150.140.130.120.110.10.090.080.070.060.050.040.030.020.010Elevation (feet)48 47 46 45 44 43 42 Exfiltration Pond 1BP: (1) 28'x14' Leaching Facility - (2) 6'x6' Leach Pits, 14' O.C. with stone around Wetted Storage Stage-Area-Storage Storage (cubic-feet) 1,2001,0008006004002000 Surface/Horizontal/Wetted Area (sq-ft) 900850800750700650600550500450400350300250200150100500 Elevation (feet)48 47 46 45 44 43 42 Prismatoid Vertical Cone/Cylinder Type III 24-hr 100-year Rainfall=7.31"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 166HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Hydrograph for Pond 1BP: (1) 28'x14' Leaching Facility - (2) 6'x6' Leach Pits, 14' O.C. with stone around Time (hours) Inflow (cfs) Storage (cubic-feet) Elevation (feet) Discarded (cfs) 0.00 0.00 0 41.50 0.00 0.60 0.00 0 41.50 0.00 1.20 0.00 0 41.50 0.00 1.80 0.00 0 41.50 0.00 2.40 0.00 0 41.50 0.00 3.00 0.00 0 41.50 0.00 3.60 0.00 0 41.50 0.00 4.20 0.00 0 41.50 0.00 4.80 0.00 0 41.50 0.00 5.40 0.00 0 41.50 0.00 6.00 0.00 0 41.50 0.00 6.60 0.00 0 41.50 0.00 7.20 0.00 0 41.50 0.00 7.80 0.00 0 41.50 0.00 8.40 0.00 0 41.50 0.00 9.00 0.00 0 41.50 0.00 9.60 0.00 0 41.50 0.00 10.20 0.00 0 41.50 0.00 10.80 0.00 0 41.50 0.00 11.40 0.00 0 41.50 0.00 12.00 0.00 0 41.50 0.00 12.60 0.28 1,020 46.59 0.16 13.20 0.14 1,075 46.86 0.16 13.80 0.11 999 46.48 0.16 14.40 0.08 877 45.89 0.15 15.00 0.07 740 45.21 0.13 15.60 0.05 593 44.48 0.12 16.20 0.04 434 43.70 0.11 16.80 0.03 277 42.93 0.10 17.40 0.02 130 42.20 0.09 18.00 0.01 0 41.50 0.01 18.60 0.01 0 41.50 0.01 19.20 0.01 0 41.50 0.01 19.80 0.00 0 41.50 0.00 20.40 0.00 0 41.50 0.00 21.00 0.00 0 41.50 0.00 21.60 0.00 0 41.50 0.00 22.20 0.00 0 41.50 0.00 22.80 0.00 0 41.50 0.00 23.40 0.00 0 41.50 0.00 24.00 0.00 0 41.50 0.00 24.60 0.00 0 41.50 0.00 25.20 0.00 0 41.50 0.00 25.80 0.00 0 41.50 0.00 26.40 0.00 0 41.50 0.00 27.00 0.00 0 41.50 0.00 27.60 0.00 0 41.50 0.00 Type III 24-hr 100-year Rainfall=7.31"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 167HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Stage-Discharge for Pond 1BP: (1) 28'x14' Leaching Facility - (2) 6'x6' Leach Pits, 14' O.C. with stone around Elevation (feet) Discarded (cfs) 41.50 0.00 41.55 0.08 41.60 0.08 41.65 0.08 41.70 0.08 41.75 0.08 41.80 0.08 41.85 0.08 41.90 0.08 41.95 0.08 42.00 0.08 42.05 0.08 42.10 0.08 42.15 0.09 42.20 0.09 42.25 0.09 42.30 0.09 42.35 0.09 42.40 0.09 42.45 0.09 42.50 0.09 42.55 0.09 42.60 0.09 42.65 0.09 42.70 0.09 42.75 0.10 42.80 0.10 42.85 0.10 42.90 0.10 42.95 0.10 43.00 0.10 43.05 0.10 43.10 0.10 43.15 0.10 43.20 0.10 43.25 0.10 43.30 0.10 43.35 0.10 43.40 0.11 43.45 0.11 43.50 0.11 43.55 0.11 43.60 0.11 43.65 0.11 43.70 0.11 43.75 0.11 43.80 0.11 43.85 0.11 43.90 0.11 43.95 0.11 44.00 0.12 44.05 0.12 Elevation (feet) Discarded (cfs) 44.10 0.12 44.15 0.12 44.20 0.12 44.25 0.12 44.30 0.12 44.35 0.12 44.40 0.12 44.45 0.12 44.50 0.12 44.55 0.12 44.60 0.12 44.65 0.13 44.70 0.13 44.75 0.13 44.80 0.13 44.85 0.13 44.90 0.13 44.95 0.13 45.00 0.13 45.05 0.13 45.10 0.13 45.15 0.13 45.20 0.13 45.25 0.14 45.30 0.14 45.35 0.14 45.40 0.14 45.45 0.14 45.50 0.14 45.55 0.14 45.60 0.14 45.65 0.14 45.70 0.14 45.75 0.14 45.80 0.14 45.85 0.14 45.90 0.15 45.95 0.15 46.00 0.15 46.05 0.15 46.10 0.15 46.15 0.15 46.20 0.15 46.25 0.15 46.30 0.15 46.35 0.15 46.40 0.15 46.45 0.15 46.50 0.16 46.55 0.16 46.60 0.16 46.65 0.16 Elevation (feet) Discarded (cfs) 46.70 0.16 46.75 0.16 46.80 0.16 46.85 0.16 46.90 0.16 46.95 0.16 47.00 0.16 47.05 0.16 47.10 0.17 47.15 0.17 47.20 0.17 47.25 0.17 47.30 0.17 47.35 0.17 47.40 0.17 47.45 0.17 47.50 0.17 47.55 0.17 47.60 0.17 47.65 0.17 47.70 0.17 47.75 0.18 47.80 0.18 47.85 0.18 47.90 0.18 47.95 0.18 48.00 0.18 Type III 24-hr 100-year Rainfall=7.31"8807.Recharge(10.19.22) 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-Area-Storage for Pond 1BP: (1) 28'x14' Leaching Facility - (2) 6'x6' Leach Pits, 14' O.C. with stone around Elevation (feet) Wetted (sq-ft) Storage (cubic-feet) 41.50 392 0 41.60 400 18 41.70 409 35 41.80 417 53 41.90 426 71 42.00 434 88 42.10 442 109 42.20 451 129 42.30 459 149 42.40 468 169 42.50 476 190 42.60 484 210 42.70 493 230 42.80 501 251 42.90 510 271 43.00 518 291 43.10 526 312 43.20 535 332 43.30 543 352 43.40 552 373 43.50 560 393 43.60 568 413 43.70 577 433 43.80 585 454 43.90 594 474 44.00 602 494 44.10 610 515 44.20 619 535 44.30 627 555 44.40 636 576 44.50 644 596 44.60 652 616 44.70 661 637 44.80 669 657 44.90 678 677 45.00 686 697 45.10 694 718 45.20 703 738 45.30 711 758 45.40 720 779 45.50 728 799 45.60 736 819 45.70 745 840 45.80 753 860 45.90 762 880 46.00 770 901 46.10 778 921 46.20 787 941 46.30 795 961 46.40 804 982 46.50 812 1,002 46.60 820 1,022 Elevation (feet) Wetted (sq-ft) Storage (cubic-feet) 46.70 829 1,043 46.80 837 1,063 46.90 846 1,083 47.00 854 1,104 47.10 862 1,124 47.20 871 1,144 47.30 879 1,165 47.40 888 1,185 47.50 896 1,205 47.60 904 1,225 47.70 913 1,246 47.80 921 1,266 47.90 930 1,286 48.00 938 1,307 Type III 24-hr 100-year Rainfall=7.31"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 169HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Summary for Pond 2AP: Grassed Swale Leaching - M2 Inflow Area = 4.079 ac, 21.23% Impervious, Inflow Depth = 1.90" for 100-year event Inflow = 7.68 cfs @ 12.12 hrs, Volume= 0.645 af Outflow = 4.64 cfs @ 12.29 hrs, Volume= 0.602 af, Atten= 40%, Lag= 10.2 min Discarded = 0.21 cfs @ 12.29 hrs, Volume= 0.276 af Secondary = 4.42 cfs @ 12.29 hrs, Volume= 0.325 af Routed to Pond 2BP : (1) 70'x28' Leaching Facility - Two Rows of (5) 6'x6' Leach Pits, 14' O.C. with stone around Routing by Dyn-Stor-Ind method, Time Span= 0.00-27.99 hrs, dt= 0.03 hrs Peak Elev= 34.81' @ 12.29 hrs Surf.Area= 3,731 sf Storage= 5,962 cf Plug-Flow detention time= 141.9 min calculated for 0.601 af (93% of inflow) Center-of-Mass det. time= 108.1 min ( 982.6 - 874.5 ) Volume Invert Avail.Storage Storage Description #1 33.00' 6,696 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) 33.00 2,890 222.0 0 0 2,890 35.00 3,828 247.0 6,696 6,696 3,934 Device Routing Invert Outlet Devices #1 Discarded 33.00'2.410 in/hr Exfiltration over Wetted area Phase-In= 0.01' #2 Secondary 34.50'24.0" x 24.0" Horiz. Orifice/Grate C= 0.600 Limited to weir flow at low heads Discarded OutFlow Max=0.21 cfs @ 12.29 hrs HW=34.81' (Free Discharge) 1=Exfiltration (Exfiltration Controls 0.21 cfs) Secondary OutFlow Max=4.41 cfs @ 12.29 hrs HW=34.81' TW=27.32' (Dynamic Tailwater) 2=Orifice/Grate (Weir Controls 4.41 cfs @ 1.81 fps) Type III 24-hr 100-year Rainfall=7.31"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 170HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Pond 2AP: Grassed Swale Leaching - M2 Inflow Outflow Discarded Secondary Hydrograph Time (hours) 26242220181614121086420Flow (cfs)8 7 6 5 4 3 2 1 0 Inflow Area=4.079 ac Peak Elev=34.81' Storage=5,962 cf 7.68 cfs 4.64 cfs 0.21 cfs 4.42 cfs Pond 2AP: Grassed Swale Leaching - M2 Total Discarded Secondary Stage-Discharge Discharge (cfs) 9876543210Elevation (feet)35 34 33 Exfiltration Orifice/Grate Type III 24-hr 100-year Rainfall=7.31"8807.Recharge(10.19.22) 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 2AP: Grassed Swale Leaching - M2 Surface Wetted Storage Stage-Area-Storage Storage (cubic-feet) 6,0005,0004,0003,0002,0001,0000 Surface/Horizontal/Wetted Area (sq-ft) 3,5003,0002,5002,0001,5001,0005000 Elevation (feet)35 34 33 Grassed Swale Type III 24-hr 100-year Rainfall=7.31"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 172HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Hydrograph for Pond 2AP: Grassed Swale Leaching - M2 Time (hours) Inflow (cfs) Storage (cubic-feet) Elevation (feet) Outflow (cfs) Discarded (cfs) Secondary (cfs) 0.00 0.00 0 33.00 0.00 0.00 0.00 0.60 0.00 0 33.00 0.00 0.00 0.00 1.20 0.00 0 33.00 0.00 0.00 0.00 1.80 0.00 0 33.00 0.00 0.00 0.00 2.40 0.00 0 33.00 0.00 0.00 0.00 3.00 0.00 0 33.00 0.00 0.00 0.00 3.60 0.00 0 33.00 0.00 0.00 0.00 4.20 0.00 0 33.00 0.00 0.00 0.00 4.80 0.00 0 33.00 0.00 0.00 0.00 5.40 0.00 0 33.00 0.00 0.00 0.00 6.00 0.00 0 33.00 0.00 0.00 0.00 6.60 0.00 0 33.00 0.00 0.00 0.00 7.20 0.00 0 33.00 0.00 0.00 0.00 7.80 0.00 0 33.00 0.00 0.00 0.00 8.40 0.00 0 33.00 0.00 0.00 0.00 9.00 0.00 0 33.00 0.00 0.00 0.00 9.60 0.00 0 33.00 0.00 0.00 0.00 10.20 0.00 0 33.00 0.00 0.00 0.00 10.80 0.00 0 33.00 0.00 0.00 0.00 11.40 0.14 22 33.01 0.12 0.12 0.00 12.00 3.23 1,460 33.49 0.17 0.17 0.00 12.60 1.78 5,510 34.68 2.27 0.21 2.06 13.20 0.98 5,202 34.60 1.03 0.21 0.82 13.80 0.81 5,145 34.58 0.84 0.21 0.63 14.40 0.68 5,097 34.57 0.70 0.21 0.49 15.00 0.59 5,067 34.56 0.61 0.21 0.40 15.60 0.50 5,031 34.55 0.52 0.21 0.31 16.20 0.41 4,990 34.54 0.42 0.21 0.21 16.80 0.36 4,967 34.53 0.37 0.21 0.17 17.40 0.32 4,945 34.53 0.33 0.21 0.12 18.00 0.27 4,919 34.52 0.28 0.20 0.08 18.60 0.25 4,901 34.52 0.26 0.20 0.05 19.20 0.24 4,891 34.51 0.24 0.20 0.04 19.80 0.23 4,880 34.51 0.23 0.20 0.03 20.40 0.21 4,868 34.51 0.22 0.20 0.01 21.00 0.20 4,856 34.50 0.21 0.20 0.00 21.60 0.19 4,838 34.50 0.20 0.20 0.00 22.20 0.18 4,802 34.49 0.20 0.20 0.00 22.80 0.17 4,743 34.47 0.20 0.20 0.00 23.40 0.16 4,662 34.45 0.20 0.20 0.00 24.00 0.15 4,559 34.42 0.20 0.20 0.00 24.60 0.00 4,185 34.31 0.20 0.20 0.00 25.20 0.00 3,760 34.19 0.20 0.20 0.00 25.80 0.00 3,342 34.07 0.19 0.19 0.00 26.40 0.00 2,932 33.95 0.19 0.19 0.00 27.00 0.00 2,530 33.82 0.18 0.18 0.00 27.60 0.00 2,135 33.70 0.18 0.18 0.00 Type III 24-hr 100-year Rainfall=7.31"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 173HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Stage-Discharge for Pond 2AP: Grassed Swale Leaching - M2 Elevation (feet) Discharge (cfs) Discarded (cfs) Secondary (cfs) 33.00 0.00 0.00 0.00 33.02 0.16 0.16 0.00 33.04 0.16 0.16 0.00 33.06 0.16 0.16 0.00 33.08 0.16 0.16 0.00 33.10 0.16 0.16 0.00 33.12 0.16 0.16 0.00 33.14 0.17 0.17 0.00 33.16 0.17 0.17 0.00 33.18 0.17 0.17 0.00 33.20 0.17 0.17 0.00 33.22 0.17 0.17 0.00 33.24 0.17 0.17 0.00 33.26 0.17 0.17 0.00 33.28 0.17 0.17 0.00 33.30 0.17 0.17 0.00 33.32 0.17 0.17 0.00 33.34 0.17 0.17 0.00 33.36 0.17 0.17 0.00 33.38 0.17 0.17 0.00 33.40 0.17 0.17 0.00 33.42 0.17 0.17 0.00 33.44 0.17 0.17 0.00 33.46 0.17 0.17 0.00 33.48 0.17 0.17 0.00 33.50 0.18 0.18 0.00 33.52 0.18 0.18 0.00 33.54 0.18 0.18 0.00 33.56 0.18 0.18 0.00 33.58 0.18 0.18 0.00 33.60 0.18 0.18 0.00 33.62 0.18 0.18 0.00 33.64 0.18 0.18 0.00 33.66 0.18 0.18 0.00 33.68 0.18 0.18 0.00 33.70 0.18 0.18 0.00 33.72 0.18 0.18 0.00 33.74 0.18 0.18 0.00 33.76 0.18 0.18 0.00 33.78 0.18 0.18 0.00 33.80 0.18 0.18 0.00 33.82 0.18 0.18 0.00 33.84 0.18 0.18 0.00 33.86 0.19 0.19 0.00 33.88 0.19 0.19 0.00 33.90 0.19 0.19 0.00 33.92 0.19 0.19 0.00 33.94 0.19 0.19 0.00 33.96 0.19 0.19 0.00 33.98 0.19 0.19 0.00 34.00 0.19 0.19 0.00 34.02 0.19 0.19 0.00 Elevation (feet) Discharge (cfs) Discarded (cfs) Secondary (cfs) 34.04 0.19 0.19 0.00 34.06 0.19 0.19 0.00 34.08 0.19 0.19 0.00 34.10 0.19 0.19 0.00 34.12 0.19 0.19 0.00 34.14 0.19 0.19 0.00 34.16 0.19 0.19 0.00 34.18 0.19 0.19 0.00 34.20 0.20 0.20 0.00 34.22 0.20 0.20 0.00 34.24 0.20 0.20 0.00 34.26 0.20 0.20 0.00 34.28 0.20 0.20 0.00 34.30 0.20 0.20 0.00 34.32 0.20 0.20 0.00 34.34 0.20 0.20 0.00 34.36 0.20 0.20 0.00 34.38 0.20 0.20 0.00 34.40 0.20 0.20 0.00 34.42 0.20 0.20 0.00 34.44 0.20 0.20 0.00 34.46 0.20 0.20 0.00 34.48 0.20 0.20 0.00 34.50 0.20 0.20 0.00 34.52 0.28 0.20 0.07 34.54 0.41 0.21 0.21 34.56 0.59 0.21 0.38 34.58 0.80 0.21 0.59 34.60 1.03 0.21 0.83 34.62 1.30 0.21 1.09 34.64 1.58 0.21 1.37 34.66 1.88 0.21 1.67 34.68 2.21 0.21 2.00 34.70 2.55 0.21 2.34 34.72 2.91 0.21 2.70 34.74 3.29 0.21 3.08 34.76 3.68 0.21 3.47 34.78 4.09 0.21 3.88 34.80 4.51 0.21 4.30 34.82 4.95 0.21 4.74 34.84 5.40 0.21 5.19 34.86 5.87 0.22 5.65 34.88 6.34 0.22 6.13 34.90 6.83 0.22 6.62 34.92 7.34 0.22 7.12 34.94 7.85 0.22 7.64 34.96 8.38 0.22 8.16 34.98 8.92 0.22 8.70 35.00 9.47 0.22 9.25 Type III 24-hr 100-year Rainfall=7.31"8807.Recharge(10.19.22) 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-Area-Storage for Pond 2AP: Grassed Swale Leaching - M2 Elevation (feet) Surface (sq-ft) Wetted (sq-ft) Storage (cubic-feet) 33.00 2,890 2,890 0 33.05 2,912 2,915 145 33.10 2,934 2,940 291 33.15 2,956 2,964 438 33.20 2,978 2,989 587 33.25 3,000 3,014 736 33.30 3,022 3,040 887 33.35 3,045 3,065 1,038 33.40 3,067 3,090 1,191 33.45 3,090 3,115 1,345 33.50 3,112 3,141 1,500 33.55 3,135 3,166 1,656 33.60 3,158 3,192 1,814 33.65 3,180 3,217 1,972 33.70 3,203 3,243 2,132 33.75 3,226 3,269 2,292 33.80 3,249 3,294 2,454 33.85 3,273 3,320 2,617 33.90 3,296 3,346 2,782 33.95 3,319 3,372 2,947 34.00 3,343 3,398 3,114 34.05 3,366 3,424 3,281 34.10 3,390 3,451 3,450 34.15 3,413 3,477 3,620 34.20 3,437 3,503 3,791 34.25 3,461 3,530 3,964 34.30 3,485 3,556 4,138 34.35 3,509 3,583 4,312 34.40 3,533 3,609 4,488 34.45 3,557 3,636 4,666 34.50 3,581 3,663 4,844 34.55 3,605 3,690 5,024 34.60 3,630 3,717 5,205 34.65 3,654 3,744 5,387 34.70 3,679 3,771 5,570 34.75 3,704 3,798 5,755 34.80 3,728 3,825 5,940 34.85 3,753 3,852 6,127 34.90 3,778 3,879 6,316 34.95 3,803 3,907 6,505 35.00 3,828 3,934 6,696 Type III 24-hr 100-year Rainfall=7.31"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 175HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Summary for Pond 2AR: (7) CB's in Pavement Inflow Area = 2.859 ac, 27.01% Impervious, Inflow Depth = 2.23" for 100-year event Inflow = 6.59 cfs @ 12.12 hrs, Volume= 0.530 af Outflow = 6.59 cfs @ 12.12 hrs, Volume= 0.530 af, Atten= 0%, Lag= 0.0 min Primary = 6.59 cfs @ 12.12 hrs, Volume= 0.530 af Routed to Pond 2AP : Grassed Swale Leaching - M2 Routing by Dyn-Stor-Ind method, Time Span= 0.00-27.99 hrs, dt= 0.03 hrs Peak Elev= 36.27' @ 12.12 hrs Flood Elev= 38.20' Device Routing Invert Outlet Devices #1 Primary 35.70'12.0" Round Culvert X 7.00 L= 50.0' CPP, projecting, no headwall, Ke= 0.900 Inlet / Outlet Invert= 35.70' / 35.00' S= 0.0140 '/' Cc= 0.900 n= 0.020 Corrugated PE, corrugated interior, Flow Area= 0.79 sf Primary OutFlow Max=6.57 cfs @ 12.12 hrs HW=36.27' TW=34.21' (Dynamic Tailwater) 1=Culvert (Inlet Controls 6.57 cfs @ 2.03 fps) Pond 2AR: (7) CB's in Pavement Inflow Primary Hydrograph Time (hours) 26242220181614121086420Flow (cfs)7 6 5 4 3 2 1 0 Inflow Area=2.859 ac Peak Elev=36.27' 12.0" Round Culvert x 7.00 n=0.020 L=50.0' S=0.0140 '/' 6.59 cfs 6.59 cfs Type III 24-hr 100-year Rainfall=7.31"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 176HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Pond 2AR: (7) CB's in Pavement Primary Stage-Discharge Discharge (cfs) 26242220181614121086420Elevation (feet)38 37 36 Culvert Pond 2AR: (7) CB's in Pavement Storage Stage-Area-Storage Storage (acre-feet) 0Elevation (feet)38 37 36 Flood Elevation Type III 24-hr 100-year Rainfall=7.31"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 177HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Hydrograph for Pond 2AR: (7) CB's in Pavement Time (hours) Inflow (cfs) Elevation (feet) Primary (cfs) 0.00 0.00 35.70 0.00 0.30 0.00 35.70 0.00 0.60 0.00 35.70 0.00 0.90 0.00 35.70 0.00 1.20 0.00 35.70 0.00 1.50 0.00 35.70 0.00 1.80 0.00 35.70 0.00 2.10 0.00 35.70 0.00 2.40 0.00 35.70 0.00 2.70 0.00 35.70 0.00 3.00 0.00 35.70 0.00 3.30 0.00 35.70 0.00 3.60 0.00 35.70 0.00 3.90 0.00 35.70 0.00 4.20 0.00 35.70 0.00 4.50 0.00 35.70 0.00 4.80 0.00 35.70 0.00 5.10 0.00 35.70 0.00 5.40 0.00 35.70 0.00 5.70 0.00 35.70 0.00 6.00 0.00 35.70 0.00 6.30 0.00 35.70 0.00 6.60 0.00 35.70 0.00 6.90 0.00 35.70 0.00 7.20 0.00 35.70 0.00 7.50 0.00 35.70 0.00 7.80 0.00 35.70 0.00 8.10 0.00 35.70 0.00 8.40 0.00 35.70 0.00 8.70 0.00 35.70 0.00 9.00 0.00 35.70 0.00 9.30 0.00 35.70 0.00 9.60 0.00 35.70 0.00 9.90 0.00 35.70 0.00 10.20 0.00 35.70 0.00 10.50 0.00 35.70 0.00 10.80 0.00 35.70 0.00 11.10 0.04 35.75 0.04 11.40 0.14 35.78 0.14 11.70 0.53 35.85 0.53 12.00 2.95 36.07 2.95 12.30 3.75 36.12 3.75 12.60 1.46 35.95 1.46 12.90 1.00 35.91 1.00 13.20 0.79 35.89 0.79 13.50 0.72 35.88 0.72 13.80 0.65 35.87 0.65 14.10 0.58 35.86 0.58 14.40 0.54 35.86 0.54 14.70 0.50 35.85 0.50 15.00 0.47 35.85 0.47 15.30 0.43 35.84 0.43 Time (hours) Inflow (cfs) Elevation (feet) Primary (cfs) 15.60 0.39 35.83 0.39 15.90 0.35 35.83 0.35 16.20 0.32 35.82 0.32 16.50 0.30 35.82 0.30 16.80 0.28 35.81 0.28 17.10 0.27 35.81 0.27 17.40 0.25 35.81 0.25 17.70 0.23 35.80 0.23 18.00 0.21 35.80 0.21 18.30 0.20 35.80 0.20 18.60 0.20 35.80 0.20 18.90 0.19 35.79 0.19 19.20 0.19 35.79 0.19 19.50 0.18 35.79 0.18 19.80 0.18 35.79 0.18 20.10 0.17 35.79 0.17 20.40 0.17 35.79 0.17 20.70 0.16 35.79 0.16 21.00 0.16 35.79 0.16 21.30 0.15 35.79 0.15 21.60 0.15 35.78 0.15 21.90 0.15 35.78 0.15 22.20 0.14 35.78 0.14 22.50 0.14 35.78 0.14 22.80 0.13 35.78 0.13 23.10 0.13 35.78 0.13 23.40 0.12 35.78 0.12 23.70 0.12 35.78 0.12 24.00 0.12 35.77 0.12 24.30 0.00 35.71 0.00 24.60 0.00 35.70 0.00 24.90 0.00 35.70 0.00 25.20 0.00 35.70 0.00 25.50 0.00 35.70 0.00 25.80 0.00 35.70 0.00 26.10 0.00 35.70 0.00 26.40 0.00 35.70 0.00 26.70 0.00 35.70 0.00 27.00 0.00 35.70 0.00 27.30 0.00 35.70 0.00 27.60 0.00 35.70 0.00 27.90 0.00 35.70 0.00 Type III 24-hr 100-year Rainfall=7.31"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 178HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Stage-Discharge for Pond 2AR: (7) CB's in Pavement Elevation (feet) Primary (cfs) 35.70 0.00 35.72 0.01 35.74 0.03 35.76 0.07 35.78 0.13 35.80 0.22 35.82 0.32 35.84 0.44 35.86 0.57 35.88 0.73 35.90 0.90 35.92 1.10 35.94 1.30 35.96 1.53 35.98 1.77 36.00 2.02 36.02 2.29 36.04 2.58 36.06 2.87 36.08 3.18 36.10 3.49 36.12 3.82 36.14 4.15 36.16 4.50 36.18 4.86 36.20 5.22 36.22 5.60 36.24 5.98 36.26 6.37 36.28 6.77 36.30 7.17 36.32 7.58 36.34 7.99 36.36 8.41 36.38 8.82 36.40 9.24 36.42 9.67 36.44 10.09 36.46 10.51 36.48 10.92 36.50 11.34 36.52 11.74 36.54 12.15 36.56 12.54 36.58 12.92 36.60 13.29 36.62 13.64 36.64 13.98 36.66 14.28 36.68 14.56 36.70 14.78 36.72 15.07 Elevation (feet) Primary (cfs) 36.74 15.36 36.76 15.64 36.78 15.92 36.80 16.19 36.82 16.46 36.84 16.72 36.86 16.98 36.88 17.23 36.90 17.49 36.92 17.73 36.94 17.98 36.96 18.22 36.98 18.46 37.00 18.69 37.02 18.92 37.04 18.99 37.06 19.17 37.08 19.35 37.10 19.53 37.12 19.70 37.14 19.88 37.16 20.05 37.18 20.22 37.20 20.39 37.22 20.56 37.24 20.73 37.26 20.90 37.28 21.06 37.30 21.23 37.32 21.39 37.34 21.55 37.36 21.71 37.38 21.87 37.40 22.03 37.42 22.19 37.44 22.34 37.46 22.50 37.48 22.65 37.50 22.80 37.52 22.95 37.54 23.10 37.56 23.25 37.58 23.40 37.60 23.55 37.62 23.70 37.64 23.84 37.66 23.99 37.68 24.13 37.70 24.27 37.72 24.42 37.74 24.56 37.76 24.70 Elevation (feet) Primary (cfs) 37.78 24.84 37.80 24.98 37.82 25.12 37.84 25.25 37.86 25.39 37.88 25.53 37.90 25.66 37.92 25.80 37.94 25.93 37.96 26.06 37.98 26.20 38.00 26.33 38.02 26.46 38.04 26.59 38.06 26.72 38.08 26.85 38.10 26.98 38.12 27.11 38.14 27.24 38.16 27.36 38.18 27.49 38.20 27.61 Type III 24-hr 100-year Rainfall=7.31"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 179HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 2AR: (7) CB's in Pavement Elevation (feet) Storage (acre-feet) 35.70 0.000 35.72 0.000 35.74 0.000 35.76 0.000 35.78 0.000 35.80 0.000 35.82 0.000 35.84 0.000 35.86 0.000 35.88 0.000 35.90 0.000 35.92 0.000 35.94 0.000 35.96 0.000 35.98 0.000 36.00 0.000 36.02 0.000 36.04 0.000 36.06 0.000 36.08 0.000 36.10 0.000 36.12 0.000 36.14 0.000 36.16 0.000 36.18 0.000 36.20 0.000 36.22 0.000 36.24 0.000 36.26 0.000 36.28 0.000 36.30 0.000 36.32 0.000 36.34 0.000 36.36 0.000 36.38 0.000 36.40 0.000 36.42 0.000 36.44 0.000 36.46 0.000 36.48 0.000 36.50 0.000 36.52 0.000 36.54 0.000 36.56 0.000 36.58 0.000 36.60 0.000 36.62 0.000 36.64 0.000 36.66 0.000 36.68 0.000 36.70 0.000 36.72 0.000 Elevation (feet) Storage (acre-feet) 36.74 0.000 36.76 0.000 36.78 0.000 36.80 0.000 36.82 0.000 36.84 0.000 36.86 0.000 36.88 0.000 36.90 0.000 36.92 0.000 36.94 0.000 36.96 0.000 36.98 0.000 37.00 0.000 37.02 0.000 37.04 0.000 37.06 0.000 37.08 0.000 37.10 0.000 37.12 0.000 37.14 0.000 37.16 0.000 37.18 0.000 37.20 0.000 37.22 0.000 37.24 0.000 37.26 0.000 37.28 0.000 37.30 0.000 37.32 0.000 37.34 0.000 37.36 0.000 37.38 0.000 37.40 0.000 37.42 0.000 37.44 0.000 37.46 0.000 37.48 0.000 37.50 0.000 37.52 0.000 37.54 0.000 37.56 0.000 37.58 0.000 37.60 0.000 37.62 0.000 37.64 0.000 37.66 0.000 37.68 0.000 37.70 0.000 37.72 0.000 37.74 0.000 37.76 0.000 Elevation (feet) Storage (acre-feet) 37.78 0.000 37.80 0.000 37.82 0.000 37.84 0.000 37.86 0.000 37.88 0.000 37.90 0.000 37.92 0.000 37.94 0.000 37.96 0.000 37.98 0.000 38.00 0.000 38.02 0.000 38.04 0.000 38.06 0.000 38.08 0.000 38.10 0.000 38.12 0.000 38.14 0.000 38.16 0.000 38.18 0.000 38.20 0.000 Type III 24-hr 100-year Rainfall=7.31"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 180HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Summary for Pond 2BP: (1) 70'x28' Leaching Facility - Two Rows of (5) 6'x6' Leach Pits, 14' O.C. with stone around Inflow = 4.42 cfs @ 12.29 hrs, Volume= 0.325 af Outflow = 0.60 cfs @ 13.90 hrs, Volume= 0.325 af, Atten= 86%, Lag= 96.9 min Discarded = 0.60 cfs @ 13.90 hrs, Volume= 0.325 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-27.99 hrs, dt= 0.03 hrs Peak Elev= 32.07' @ 13.90 hrs Surf.Area= 1,960 sf Storage= 6,102 cf Plug-Flow detention time= (not calculated: outflow precedes inflow) Center-of-Mass det. time= 123.6 min ( 943.3 - 819.7 ) Volume Invert Avail.Storage Storage Description #1 26.00' 4,837 cf 28.00'W x 70.00'L x 6.50'H Prismatoid 12,740 cf Overall - 1,991 cf Embedded = 10,749 cf x 45.0% Voids #2 26.50' 1,696 cf 6.00'D x 6.00'H Vertical Cone/Cylinder x 10 Inside #1 1,991 cf Overall - 3.0" Wall Thickness = 1,696 cf 6,534 cf Total Available Storage Device Routing Invert Outlet Devices #1 Discarded 26.00'8.270 in/hr Exfiltration over Wetted area Phase-In= 0.01' Discarded OutFlow Max=0.60 cfs @ 13.90 hrs HW=32.07' (Free Discharge) 1=Exfiltration (Exfiltration Controls 0.60 cfs) Pond 2BP: (1) 70'x28' Leaching Facility - Two Rows of (5) 6'x6' Leach Pits, 14' O.C. with stone around Inflow Discarded Hydrograph Time (hours) 26242220181614121086420Flow (cfs)4 3 2 1 0 Peak Elev=32.07' Storage=6,102 cf 4.42 cfs 0.60 cfs Type III 24-hr 100-year Rainfall=7.31"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 181HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Pond 2BP: (1) 70'x28' Leaching Facility - Two Rows of (5) 6'x6' Leach Pits, 14' O.C. with stone around Discarded Stage-Discharge Discharge (cfs) 0.60.550.50.450.40.350.30.250.20.150.10.050Elevation (feet)32 31 30 29 28 27 26 Exfiltration Pond 2BP: (1) 70'x28' Leaching Facility - Two Rows of (5) 6'x6' Leach Pits, 14' O.C. with stone around Wetted Storage Stage-Area-Storage Storage (cubic-feet) 6,0005,0004,0003,0002,0001,0000 Surface/Horizontal/Wetted Area (sq-ft) 3,2003,0002,8002,6002,4002,2002,0001,8001,6001,4001,2001,0008006004002000 Elevation (feet)32 31 30 29 28 27 26 Prismatoid Vertical Cone/Cylinder Type III 24-hr 100-year Rainfall=7.31"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 182HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Hydrograph for Pond 2BP: (1) 70'x28' Leaching Facility - Two Rows of (5) 6'x6' Leach Pits, 14' O.C. with stone around Time (hours) Inflow (cfs) Storage (cubic-feet) Elevation (feet) Discarded (cfs) 0.00 0.00 0 26.00 0.00 0.60 0.00 0 26.00 0.00 1.20 0.00 0 26.00 0.00 1.80 0.00 0 26.00 0.00 2.40 0.00 0 26.00 0.00 3.00 0.00 0 26.00 0.00 3.60 0.00 0 26.00 0.00 4.20 0.00 0 26.00 0.00 4.80 0.00 0 26.00 0.00 5.40 0.00 0 26.00 0.00 6.00 0.00 0 26.00 0.00 6.60 0.00 0 26.00 0.00 7.20 0.00 0 26.00 0.00 7.80 0.00 0 26.00 0.00 8.40 0.00 0 26.00 0.00 9.00 0.00 0 26.00 0.00 9.60 0.00 0 26.00 0.00 10.20 0.00 0 26.00 0.00 10.80 0.00 0 26.00 0.00 11.40 0.00 0 26.00 0.00 12.00 0.00 0 26.00 0.00 12.60 2.06 4,512 30.51 0.54 13.20 0.82 5,840 31.82 0.59 13.80 0.63 6,096 32.07 0.60 14.40 0.49 5,988 31.96 0.60 15.00 0.40 5,669 31.65 0.59 15.60 0.31 5,189 31.18 0.57 16.20 0.21 4,548 30.54 0.55 16.80 0.17 3,806 29.81 0.52 17.40 0.12 3,031 29.05 0.49 18.00 0.08 2,224 28.26 0.46 18.60 0.05 1,399 27.44 0.43 19.20 0.04 601 26.66 0.40 19.80 0.03 1 26.00 0.03 20.40 0.01 0 26.00 0.01 21.00 0.00 0 26.00 0.00 21.60 0.00 0 26.00 0.00 22.20 0.00 0 26.00 0.00 22.80 0.00 0 26.00 0.00 23.40 0.00 0 26.00 0.00 24.00 0.00 0 26.00 0.00 24.60 0.00 0 26.00 0.00 25.20 0.00 0 26.00 0.00 25.80 0.00 0 26.00 0.00 26.40 0.00 0 26.00 0.00 27.00 0.00 0 26.00 0.00 27.60 0.00 0 26.00 0.00 Type III 24-hr 100-year Rainfall=7.31"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 183HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Stage-Discharge for Pond 2BP: (1) 70'x28' Leaching Facility - Two Rows of (5) 6'x6' Leach Pits, 14' O.C. with stone around Elevation (feet) Discarded (cfs) 26.00 0.00 26.05 0.38 26.10 0.38 26.15 0.38 26.20 0.38 26.25 0.38 26.30 0.39 26.35 0.39 26.40 0.39 26.45 0.39 26.50 0.39 26.55 0.40 26.60 0.40 26.65 0.40 26.70 0.40 26.75 0.40 26.80 0.41 26.85 0.41 26.90 0.41 26.95 0.41 27.00 0.41 27.05 0.41 27.10 0.42 27.15 0.42 27.20 0.42 27.25 0.42 27.30 0.42 27.35 0.43 27.40 0.43 27.45 0.43 27.50 0.43 27.55 0.43 27.60 0.44 27.65 0.44 27.70 0.44 27.75 0.44 27.80 0.44 27.85 0.44 27.90 0.45 27.95 0.45 28.00 0.45 28.05 0.45 28.10 0.45 28.15 0.46 28.20 0.46 28.25 0.46 28.30 0.46 28.35 0.46 28.40 0.47 28.45 0.47 28.50 0.47 28.55 0.47 Elevation (feet) Discarded (cfs) 28.60 0.47 28.65 0.47 28.70 0.48 28.75 0.48 28.80 0.48 28.85 0.48 28.90 0.48 28.95 0.49 29.00 0.49 29.05 0.49 29.10 0.49 29.15 0.49 29.20 0.50 29.25 0.50 29.30 0.50 29.35 0.50 29.40 0.50 29.45 0.50 29.50 0.51 29.55 0.51 29.60 0.51 29.65 0.51 29.70 0.51 29.75 0.52 29.80 0.52 29.85 0.52 29.90 0.52 29.95 0.52 30.00 0.53 30.05 0.53 30.10 0.53 30.15 0.53 30.20 0.53 30.25 0.53 30.30 0.54 30.35 0.54 30.40 0.54 30.45 0.54 30.50 0.54 30.55 0.55 30.60 0.55 30.65 0.55 30.70 0.55 30.75 0.55 30.80 0.56 30.85 0.56 30.90 0.56 30.95 0.56 31.00 0.56 31.05 0.56 31.10 0.57 31.15 0.57 Elevation (feet) Discarded (cfs) 31.20 0.57 31.25 0.57 31.30 0.57 31.35 0.58 31.40 0.58 31.45 0.58 31.50 0.58 31.55 0.58 31.60 0.59 31.65 0.59 31.70 0.59 31.75 0.59 31.80 0.59 31.85 0.59 31.90 0.60 31.95 0.60 32.00 0.60 32.05 0.60 32.10 0.60 32.15 0.61 32.20 0.61 32.25 0.61 32.30 0.61 32.35 0.61 32.40 0.62 32.45 0.62 32.50 0.62 Type III 24-hr 100-year Rainfall=7.31"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 184HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 2BP: (1) 70'x28' Leaching Facility - Two Rows of (5) 6'x6' Leach Pits, 14' O.C. with stone around Elevation (feet) Wetted (sq-ft) Storage (cubic-feet) 26.00 1,960 0 26.10 1,980 88 26.20 1,999 176 26.30 2,019 265 26.40 2,038 353 26.50 2,058 441 26.60 2,078 543 26.70 2,097 644 26.80 2,117 746 26.90 2,136 847 27.00 2,156 949 27.10 2,176 1,050 27.20 2,195 1,152 27.30 2,215 1,253 27.40 2,234 1,355 27.50 2,254 1,456 27.60 2,274 1,558 27.70 2,293 1,660 27.80 2,313 1,761 27.90 2,332 1,863 28.00 2,352 1,964 28.10 2,372 2,066 28.20 2,391 2,167 28.30 2,411 2,269 28.40 2,430 2,370 28.50 2,450 2,472 28.60 2,470 2,573 28.70 2,489 2,675 28.80 2,509 2,776 28.90 2,528 2,878 29.00 2,548 2,980 29.10 2,568 3,081 29.20 2,587 3,183 29.30 2,607 3,284 29.40 2,626 3,386 29.50 2,646 3,487 29.60 2,666 3,589 29.70 2,685 3,690 29.80 2,705 3,792 29.90 2,724 3,893 30.00 2,744 3,995 30.10 2,764 4,097 30.20 2,783 4,198 30.30 2,803 4,300 30.40 2,822 4,401 30.50 2,842 4,503 30.60 2,862 4,604 30.70 2,881 4,706 30.80 2,901 4,807 30.90 2,920 4,909 31.00 2,940 5,010 31.10 2,960 5,112 Elevation (feet) Wetted (sq-ft) Storage (cubic-feet) 31.20 2,979 5,213 31.30 2,999 5,315 31.40 3,018 5,417 31.50 3,038 5,518 31.60 3,058 5,620 31.70 3,077 5,721 31.80 3,097 5,823 31.90 3,116 5,924 32.00 3,136 6,026 32.10 3,156 6,127 32.20 3,175 6,229 32.30 3,195 6,330 32.40 3,214 6,432 32.50 3,234 6,534 Type III 24-hr 100-year Rainfall=7.31"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 185HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Summary for Pond 3P: (2) 15.5' x 4.33' x 2.5' Leaching Facilities (per Dwelling) - Each with (2) Cultec Recharger 330XLHD Units (Stoneless) Inflow Area = 0.030 ac,100.00% Impervious, Inflow Depth = 7.07" for 100-year event Inflow = 0.21 cfs @ 12.08 hrs, Volume= 0.017 af Outflow = 0.04 cfs @ 12.54 hrs, Volume= 0.017 af, Atten= 83%, Lag= 27.2 min Discarded = 0.04 cfs @ 12.54 hrs, Volume= 0.017 af Routing by Dyn-Stor-Ind method, Time Span= 0.00-27.99 hrs, dt= 0.03 hrs Peak Elev= 51.96' @ 12.54 hrs Surf.Area= 71 sf Storage= 210 cf Plug-Flow detention time= 36.9 min calculated for 0.017 af (100% of inflow) Center-of-Mass det. time= 36.9 min ( 779.3 - 742.4 ) Volume Invert Avail.Storage Storage Description #1 50.00' 231 cf Cultec R-330XLHD x 4 Effective Size= 47.8"W x 30.0"H => 7.45 sf x 7.00'L = 52.2 cf Overall Size= 52.0"W x 30.5"H x 8.50'L with 1.50' Overlap Row Length Adjustment= +1.50' x 7.45 sf x 2 rows Device Routing Invert Outlet Devices #1 Discarded 50.00'8.270 in/hr Exfiltration over Wetted area Phase-In= 0.01' Discarded OutFlow Max=0.04 cfs @ 12.54 hrs HW=51.96' (Free Discharge) 1=Exfiltration (Exfiltration Controls 0.04 cfs) Pond 3P: (2) 15.5' x 4.33' x 2.5' Leaching Facilities (per Dwelling) - Each with (2) Cultec Recharger 330XLHD Units (Stoneless) Inflow Discarded Hydrograph Time (hours) 26242220181614121086420Flow (cfs)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 Inflow Area=0.030 ac Peak Elev=51.96' Storage=210 cf 0.21 cfs 0.04 cfs Type III 24-hr 100-year Rainfall=7.31"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 186HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Pond 3P: (2) 15.5' x 4.33' x 2.5' Leaching Facilities (per Dwelling) - Each with (2) Cultec Recharger 330XLHD Units (Stoneless) Discarded Stage-Discharge Discharge (cfs) 0.040.0350.030.0250.020.0150.010.0050Elevation (feet)52 51 50 Exfiltration Pond 3P: (2) 15.5' x 4.33' x 2.5' Leaching Facilities (per Dwelling) - Each with (2) Cultec Recharger 330XLHD Units (Stoneless) Wetted Storage Stage-Area-Storage Storage (cubic-feet) 220200180160140120100806040200 Surface/Horizontal/Wetted Area (sq-ft) 220200180160140120100806040200 Elevation (feet)52 51 50 Cultec R-330XLHD Type III 24-hr 100-year Rainfall=7.31"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 187HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Hydrograph for Pond 3P: (2) 15.5' x 4.33' x 2.5' Leaching Facilities (per Dwelling) - Each with (2) Cultec Recharger 330XLHD Units (Stoneless) Time (hours) Inflow (cfs) Storage (cubic-feet) Elevation (feet) Discarded (cfs) 0.00 0.00 0 50.00 0.00 0.60 0.00 0 50.00 0.00 1.20 0.00 0 50.00 0.00 1.80 0.00 0 50.00 0.00 2.40 0.00 0 50.00 0.00 3.00 0.00 0 50.00 0.00 3.60 0.00 0 50.00 0.00 4.20 0.00 0 50.00 0.00 4.80 0.00 0 50.00 0.00 5.40 0.00 0 50.00 0.00 6.00 0.00 0 50.00 0.00 6.60 0.00 0 50.00 0.00 7.20 0.00 0 50.00 0.00 7.80 0.01 0 50.00 0.01 8.40 0.01 0 50.00 0.01 9.00 0.01 0 50.00 0.01 9.60 0.01 0 50.00 0.01 10.20 0.01 1 50.00 0.01 10.80 0.01 1 50.01 0.01 11.40 0.02 1 50.01 0.02 12.00 0.13 64 50.53 0.03 12.60 0.03 209 51.95 0.04 13.20 0.02 176 51.56 0.03 13.80 0.01 137 51.17 0.03 14.40 0.01 96 50.81 0.03 15.00 0.01 56 50.46 0.03 15.60 0.01 18 50.15 0.02 16.20 0.01 0 50.00 0.01 16.80 0.00 0 50.00 0.00 17.40 0.00 0 50.00 0.00 18.00 0.00 0 50.00 0.00 18.60 0.00 0 50.00 0.00 19.20 0.00 0 50.00 0.00 19.80 0.00 0 50.00 0.00 20.40 0.00 0 50.00 0.00 21.00 0.00 0 50.00 0.00 21.60 0.00 0 50.00 0.00 22.20 0.00 0 50.00 0.00 22.80 0.00 0 50.00 0.00 23.40 0.00 0 50.00 0.00 24.00 0.00 0 50.00 0.00 24.60 0.00 0 50.00 0.00 25.20 0.00 0 50.00 0.00 25.80 0.00 0 50.00 0.00 26.40 0.00 0 50.00 0.00 27.00 0.00 0 50.00 0.00 27.60 0.00 0 50.00 0.00 Type III 24-hr 100-year Rainfall=7.31"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 188HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Stage-Discharge for Pond 3P: (2) 15.5' x 4.33' x 2.5' Leaching Facilities (per Dwelling) - Each with (2) Cultec Recharger 330XLHD Units (Stoneless) Elevation (feet) Discarded (cfs) 50.00 0.00 50.02 0.02 50.04 0.02 50.06 0.02 50.08 0.02 50.10 0.02 50.12 0.02 50.14 0.02 50.16 0.02 50.18 0.02 50.20 0.02 50.22 0.02 50.24 0.03 50.26 0.03 50.28 0.03 50.30 0.03 50.32 0.03 50.34 0.03 50.36 0.03 50.38 0.03 50.40 0.03 50.42 0.03 50.44 0.03 50.46 0.03 50.48 0.03 50.50 0.03 50.52 0.03 50.54 0.03 50.56 0.03 50.58 0.03 50.60 0.03 50.62 0.03 50.64 0.03 50.66 0.03 50.68 0.03 50.70 0.03 50.72 0.03 50.74 0.03 50.76 0.03 50.78 0.03 50.80 0.03 50.82 0.03 50.84 0.03 50.86 0.03 50.88 0.03 50.90 0.03 50.92 0.03 50.94 0.03 50.96 0.03 50.98 0.03 51.00 0.03 51.02 0.03 Elevation (feet) Discarded (cfs) 51.04 0.03 51.06 0.03 51.08 0.03 51.10 0.03 51.12 0.03 51.14 0.03 51.16 0.03 51.18 0.03 51.20 0.03 51.22 0.03 51.24 0.03 51.26 0.03 51.28 0.03 51.30 0.03 51.32 0.03 51.34 0.03 51.36 0.03 51.38 0.03 51.40 0.03 51.42 0.03 51.44 0.03 51.46 0.03 51.48 0.03 51.50 0.03 51.52 0.03 51.54 0.03 51.56 0.03 51.58 0.03 51.60 0.03 51.62 0.03 51.64 0.03 51.66 0.03 51.68 0.03 51.70 0.03 51.72 0.03 51.74 0.03 51.76 0.04 51.78 0.04 51.80 0.04 51.82 0.04 51.84 0.04 51.86 0.04 51.88 0.04 51.90 0.04 51.92 0.04 51.94 0.04 51.96 0.04 51.98 0.04 52.00 0.04 52.02 0.04 52.04 0.04 52.06 0.04 Elevation (feet) Discarded (cfs) 52.08 0.04 52.10 0.04 52.12 0.04 52.14 0.04 52.16 0.04 52.18 0.04 52.20 0.04 52.22 0.04 52.24 0.04 52.26 0.04 52.28 0.04 52.30 0.04 52.32 0.04 52.34 0.04 52.36 0.04 52.38 0.04 52.40 0.04 52.42 0.04 52.44 0.04 52.46 0.04 52.48 0.04 52.50 0.04 Type III 24-hr 100-year Rainfall=7.31"8807.Recharge(10.19.22) Printed 1/20/2023Prepared by J M O'Reilly & Associates Inc Page 189HydroCAD® 10.20-2g s/n 08678 © 2022 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 3P: (2) 15.5' x 4.33' x 2.5' Leaching Facilities (per Dwelling) - Each with (2) Cultec Recharger 330XLHD Units (Stoneless) Elevation (feet) Wetted (sq-ft) Storage (cubic-feet) 50.00 124 0 50.05 125 6 50.10 127 12 50.15 128 18 50.20 130 24 50.25 131 30 50.30 133 37 50.35 134 43 50.40 136 49 50.45 138 55 50.50 139 61 50.55 141 66 50.60 142 72 50.65 144 78 50.70 146 84 50.75 148 90 50.80 149 95 50.85 151 101 50.90 152 107 50.95 154 112 51.00 155 118 51.05 157 123 51.10 158 129 51.15 160 134 51.20 162 140 51.25 163 145 51.30 165 151 51.35 167 156 51.40 169 161 51.45 171 166 51.50 173 171 51.55 175 175 51.60 177 180 51.65 179 185 51.70 181 189 51.75 183 193 51.80 185 197 51.85 187 201 51.90 189 205 51.95 192 209 52.00 194 212 52.05 197 216 52.10 200 219 52.15 203 222 52.20 207 224 52.25 211 226 52.30 215 228 52.35 219 229 52.40 223 230 52.45 227 231 52.50 232 231