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Home My WebLink About2019.02.08 NCRE SWPPP V2 Cornell University Undergraduate Student Housing Stormwater Pollution Prevention Plan Volume II. Hydrologic Calculations and Supporting Documents City of Ithaca, Town of Ithaca, Village of Cayuga Heights Tompkins County, New York Prepared for: ikon.5 Architects 864 Mapleton Road Princeton, NJ 08540 Prepared by: T.G. Miller P.C. 203 North Aurora Street Ithaca, New York 14850 (607) 272-647 February 8, 2019 February 8, 2019 TABLE OF CONTENTS VICINITY MAP VICINITY MAP HYDROCAD CALCULATIONS EXISTING ALL SUBAREAS REDEVELOPED SUBAREAS 1 AND 2 WITH ROUTINGS REDEVELOPED SUBAREAS 3 AND 4 SOIL INFORMATION USDA SOIL SURVEY WETLAND MAPS STATE WETLANDS MAP FEDERAL WETLANDS MAP FLOOD PLAIN MAPS FEMA MAP VICINITY MAP VICINITY MAP Cornell University Undergraduate Student Housing HYDROCAD CALCULATIONS EXISTING CONDITIONS Type II 24-hr 1-yr Rainfall=2.01"CU NCRE HYDROLOGY CD Printed 2/5/2019Prepared by Microsoft Page 1HydroCAD® 10.00-22 s/n 05659 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment S1E: SUBAREA 1 EXISTING Runoff = 6.56 cfs @ 12.11 hrs, Volume= 0.419 af, Depth> 0.78" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-20.00 hrs, dt= 0.01 hrs Type II 24-hr 1-yr Rainfall=2.01" Area (ac) CN Description * 3.190 74 Lawn, Landscape * 3.270 98 Paved, roof 6.460 86 Weighted Average 3.190 49.38% Pervious Area 3.270 50.62% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 14.2 100 0.0300 0.12 Sheet Flow, A-B Grass: Dense n= 0.240 P2= 2.34" 0.6 150 0.0600 3.94 Shallow Concentrated Flow, B-C Unpaved Kv= 16.1 fps 0.7 140 0.0250 3.21 Shallow Concentrated Flow, C-D Paved Kv= 20.3 fps 0.9 200 0.0500 3.66 0.32 Pipe Channel, D-E 12.0" Round w/ 10.0" inside fill Area= 0.1 sf Perim= 1.6' r= 0.05' n= 0.013 1.1 220 0.0400 3.30 0.41 Pipe Channel, E-F 24.0" Round w/ 22.0" inside fill Area= 0.1 sf Perim= 2.3' r= 0.05' n= 0.013 17.5 810 Total Type II 24-hr 1-yr Rainfall=2.01"CU NCRE HYDROLOGY CD Printed 2/5/2019Prepared by Microsoft Page 2HydroCAD® 10.00-22 s/n 05659 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment S2E: SUBAREA 2 EXISTING Runoff = 2.91 cfs @ 12.11 hrs, Volume= 0.186 af, Depth> 0.78" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-20.00 hrs, dt= 0.01 hrs Type II 24-hr 1-yr Rainfall=2.01" Area (ac) CN Description * 1.420 74 Lawn, Landscaped * 1.440 98 Paved, Roof 2.860 86 Weighted Average 1.420 49.65% Pervious Area 1.440 50.35% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 14.2 100 0.0300 0.12 Sheet Flow, A-B Grass: Dense n= 0.240 P2= 2.34" 0.9 230 0.0650 4.10 Shallow Concentrated Flow, B-C Unpaved Kv= 16.1 fps 2.4 360 0.0600 2.54 0.06 Pipe Channel, C-D 8.0" Round w/ 7.0" inside fill Area= 0.0 sf Perim= 0.9' r= 0.03' n= 0.013 17.5 690 Total Type II 24-hr 1-yr Rainfall=2.01"CU NCRE HYDROLOGY CD Printed 2/5/2019Prepared by Microsoft Page 3HydroCAD® 10.00-22 s/n 05659 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment S3E: SUBAREA 3 EXISTING Runoff = 15.50 cfs @ 12.17 hrs, Volume= 1.175 af, Depth> 0.95" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-20.00 hrs, dt= 0.01 hrs Type II 24-hr 1-yr Rainfall=2.01" Area (ac) CN Description * 5.770 74 LAWN, LANDSCAPE * 9.090 98 ROOF, PAVED 14.860 89 Weighted Average 5.770 38.83% Pervious Area 9.090 61.17% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 16.7 100 0.0200 0.10 Sheet Flow, A-B Grass: Dense n= 0.240 P2= 2.34" 0.7 130 0.0400 3.22 Shallow Concentrated Flow, B-C Unpaved Kv= 16.1 fps 0.1 25 0.2500 8.05 Shallow Concentrated Flow, C-D Unpaved Kv= 16.1 fps 1.1 140 0.0400 2.07 0.05 Pipe Channel, D-E 8.0" Round w/ 7.0" inside fill Area= 0.0 sf Perim= 0.9' r= 0.03' n= 0.013 5.0 1,150 0.0220 3.86 1.33 Pipe Channel, E-F 24.0" Round w/ 20.0" inside fill Area= 0.3 sf Perim= 3.2' r= 0.11' n= 0.013 23.6 1,545 Total Type II 24-hr 1-yr Rainfall=2.01"CU NCRE HYDROLOGY CD Printed 2/5/2019Prepared by Microsoft Page 4HydroCAD® 10.00-22 s/n 05659 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment S4E: SUBAREA 4 EXISTING Runoff = 7.47 cfs @ 12.18 hrs, Volume= 0.575 af, Depth> 0.68" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-20.00 hrs, dt= 0.01 hrs Type II 24-hr 1-yr Rainfall=2.01" Area (ac) CN Description * 5.770 74 LAWN, LANDSCAPE * 4.420 98 ROOF, PAVED 10.190 84 Weighted Average 5.770 56.62% Pervious Area 4.420 43.38% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 14.2 100 0.0300 0.12 Sheet Flow, A-B Grass: Dense n= 0.240 P2= 2.34" 0.4 150 0.0800 6.02 0.92 Pipe Channel, B-C 12.0" Round w/ 9.0" inside fill Area= 0.2 sf Perim= 1.9' r= 0.08' n= 0.013 4.9 560 0.0340 1.92 0.06 Pipe Channel, C-D 12.0" Round w/ 11.0" inside fill Area= 0.0 sf Perim= 1.1' r= 0.03' n= 0.013 4.0 560 0.0200 2.33 0.25 Pipe Channel, D-E 18.0" Round w/ 16.0" inside fill Area= 0.1 sf Perim= 2.0' r= 0.05' n= 0.013 23.5 1,370 Total Type II 24-hr 1-yr Rainfall=2.01"CU NCRE HYDROLOGY CD Printed 2/5/2019Prepared by Microsoft Page 5HydroCAD® 10.00-22 s/n 05659 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment S5E: SUBAREA 5 EXISTING Runoff = 19.21 cfs @ 12.36 hrs, Volume= 1.996 af, Depth> 0.67" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-20.00 hrs, dt= 0.01 hrs Type II 24-hr 1-yr Rainfall=2.01" Area (ac) CN Description * 21.500 74 LAWN, LANDSCAPE * 14.120 98 ROOF, PAVED 35.620 84 Weighted Average 21.500 60.36% Pervious Area 14.120 39.64% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 22.0 100 0.0100 0.08 Sheet Flow, A-B Grass: Dense n= 0.240 P2= 2.34" 0.7 70 0.0100 1.61 Shallow Concentrated Flow, B-C Unpaved Kv= 16.1 fps 4.6 350 0.0150 1.27 0.03 Pipe Channel, C-D 8.0" Round w/ 7.0" inside fill Area= 0.0 sf Perim= 0.9' r= 0.03' n= 0.013 4.6 475 0.0110 1.73 0.19 Pipe Channel, D-E 18.0" Round w/ 16.0" inside fill Area= 0.1 sf Perim= 2.0' r= 0.05' n= 0.013 5.3 1,520 0.0200 4.82 3.73 Pipe Channel, E-F 36.0" Round w/ 30.0" inside fill Area= 0.8 sf Perim= 4.8' r= 0.16' n= 0.013 37.2 2,515 Total Type II 24-hr 2-yr Rainfall=2.34"CU NCRE HYDROLOGY CD Printed 2/5/2019Prepared by Microsoft Page 6HydroCAD® 10.00-22 s/n 05659 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment S1E: SUBAREA 1 EXISTING Runoff = 8.59 cfs @ 12.10 hrs, Volume= 0.548 af, Depth> 1.02" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-20.00 hrs, dt= 0.01 hrs Type II 24-hr 2-yr Rainfall=2.34" Area (ac) CN Description * 3.190 74 Lawn, Landscape * 3.270 98 Paved, roof 6.460 86 Weighted Average 3.190 49.38% Pervious Area 3.270 50.62% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 14.2 100 0.0300 0.12 Sheet Flow, A-B Grass: Dense n= 0.240 P2= 2.34" 0.6 150 0.0600 3.94 Shallow Concentrated Flow, B-C Unpaved Kv= 16.1 fps 0.7 140 0.0250 3.21 Shallow Concentrated Flow, C-D Paved Kv= 20.3 fps 0.9 200 0.0500 3.66 0.32 Pipe Channel, D-E 12.0" Round w/ 10.0" inside fill Area= 0.1 sf Perim= 1.6' r= 0.05' n= 0.013 1.1 220 0.0400 3.30 0.41 Pipe Channel, E-F 24.0" Round w/ 22.0" inside fill Area= 0.1 sf Perim= 2.3' r= 0.05' n= 0.013 17.5 810 Total Type II 24-hr 2-yr Rainfall=2.34"CU NCRE HYDROLOGY CD Printed 2/5/2019Prepared by Microsoft Page 7HydroCAD® 10.00-22 s/n 05659 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment S2E: SUBAREA 2 EXISTING Runoff = 3.80 cfs @ 12.10 hrs, Volume= 0.243 af, Depth> 1.02" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-20.00 hrs, dt= 0.01 hrs Type II 24-hr 2-yr Rainfall=2.34" Area (ac) CN Description * 1.420 74 Lawn, Landscaped * 1.440 98 Paved, Roof 2.860 86 Weighted Average 1.420 49.65% Pervious Area 1.440 50.35% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 14.2 100 0.0300 0.12 Sheet Flow, A-B Grass: Dense n= 0.240 P2= 2.34" 0.9 230 0.0650 4.10 Shallow Concentrated Flow, B-C Unpaved Kv= 16.1 fps 2.4 360 0.0600 2.54 0.06 Pipe Channel, C-D 8.0" Round w/ 7.0" inside fill Area= 0.0 sf Perim= 0.9' r= 0.03' n= 0.013 17.5 690 Total Type II 24-hr 2-yr Rainfall=2.34"CU NCRE HYDROLOGY CD Printed 2/5/2019Prepared by Microsoft Page 8HydroCAD® 10.00-22 s/n 05659 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment S3E: SUBAREA 3 EXISTING Runoff = 19.72 cfs @ 12.17 hrs, Volume= 1.498 af, Depth> 1.21" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-20.00 hrs, dt= 0.01 hrs Type II 24-hr 2-yr Rainfall=2.34" Area (ac) CN Description * 5.770 74 LAWN, LANDSCAPE * 9.090 98 ROOF, PAVED 14.860 89 Weighted Average 5.770 38.83% Pervious Area 9.090 61.17% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 16.7 100 0.0200 0.10 Sheet Flow, A-B Grass: Dense n= 0.240 P2= 2.34" 0.7 130 0.0400 3.22 Shallow Concentrated Flow, B-C Unpaved Kv= 16.1 fps 0.1 25 0.2500 8.05 Shallow Concentrated Flow, C-D Unpaved Kv= 16.1 fps 1.1 140 0.0400 2.07 0.05 Pipe Channel, D-E 8.0" Round w/ 7.0" inside fill Area= 0.0 sf Perim= 0.9' r= 0.03' n= 0.013 5.0 1,150 0.0220 3.86 1.33 Pipe Channel, E-F 24.0" Round w/ 20.0" inside fill Area= 0.3 sf Perim= 3.2' r= 0.11' n= 0.013 23.6 1,545 Total Type II 24-hr 2-yr Rainfall=2.34"CU NCRE HYDROLOGY CD Printed 2/5/2019Prepared by Microsoft Page 9HydroCAD® 10.00-22 s/n 05659 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment S4E: SUBAREA 4 EXISTING Runoff = 10.06 cfs @ 12.17 hrs, Volume= 0.765 af, Depth> 0.90" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-20.00 hrs, dt= 0.01 hrs Type II 24-hr 2-yr Rainfall=2.34" Area (ac) CN Description * 5.770 74 LAWN, LANDSCAPE * 4.420 98 ROOF, PAVED 10.190 84 Weighted Average 5.770 56.62% Pervious Area 4.420 43.38% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 14.2 100 0.0300 0.12 Sheet Flow, A-B Grass: Dense n= 0.240 P2= 2.34" 0.4 150 0.0800 6.02 0.92 Pipe Channel, B-C 12.0" Round w/ 9.0" inside fill Area= 0.2 sf Perim= 1.9' r= 0.08' n= 0.013 4.9 560 0.0340 1.92 0.06 Pipe Channel, C-D 12.0" Round w/ 11.0" inside fill Area= 0.0 sf Perim= 1.1' r= 0.03' n= 0.013 4.0 560 0.0200 2.33 0.25 Pipe Channel, D-E 18.0" Round w/ 16.0" inside fill Area= 0.1 sf Perim= 2.0' r= 0.05' n= 0.013 23.5 1,370 Total Type II 24-hr 2-yr Rainfall=2.34"CU NCRE HYDROLOGY CD Printed 2/5/2019Prepared by Microsoft Page 10HydroCAD® 10.00-22 s/n 05659 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment S5E: SUBAREA 5 EXISTING Runoff = 25.93 cfs @ 12.36 hrs, Volume= 2.658 af, Depth> 0.90" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-20.00 hrs, dt= 0.01 hrs Type II 24-hr 2-yr Rainfall=2.34" Area (ac) CN Description * 21.500 74 LAWN, LANDSCAPE * 14.120 98 ROOF, PAVED 35.620 84 Weighted Average 21.500 60.36% Pervious Area 14.120 39.64% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 22.0 100 0.0100 0.08 Sheet Flow, A-B Grass: Dense n= 0.240 P2= 2.34" 0.7 70 0.0100 1.61 Shallow Concentrated Flow, B-C Unpaved Kv= 16.1 fps 4.6 350 0.0150 1.27 0.03 Pipe Channel, C-D 8.0" Round w/ 7.0" inside fill Area= 0.0 sf Perim= 0.9' r= 0.03' n= 0.013 4.6 475 0.0110 1.73 0.19 Pipe Channel, D-E 18.0" Round w/ 16.0" inside fill Area= 0.1 sf Perim= 2.0' r= 0.05' n= 0.013 5.3 1,520 0.0200 4.82 3.73 Pipe Channel, E-F 36.0" Round w/ 30.0" inside fill Area= 0.8 sf Perim= 4.8' r= 0.16' n= 0.013 37.2 2,515 Total Type II 24-hr 10-yr Rainfall=3.43"CU NCRE HYDROLOGY CD Printed 2/5/2019Prepared by Microsoft Page 11HydroCAD® 10.00-22 s/n 05659 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment S1E: SUBAREA 1 EXISTING Runoff = 15.72 cfs @ 12.10 hrs, Volume= 1.013 af, Depth> 1.88" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-20.00 hrs, dt= 0.01 hrs Type II 24-hr 10-yr Rainfall=3.43" Area (ac) CN Description * 3.190 74 Lawn, Landscape * 3.270 98 Paved, roof 6.460 86 Weighted Average 3.190 49.38% Pervious Area 3.270 50.62% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 14.2 100 0.0300 0.12 Sheet Flow, A-B Grass: Dense n= 0.240 P2= 2.34" 0.6 150 0.0600 3.94 Shallow Concentrated Flow, B-C Unpaved Kv= 16.1 fps 0.7 140 0.0250 3.21 Shallow Concentrated Flow, C-D Paved Kv= 20.3 fps 0.9 200 0.0500 3.66 0.32 Pipe Channel, D-E 12.0" Round w/ 10.0" inside fill Area= 0.1 sf Perim= 1.6' r= 0.05' n= 0.013 1.1 220 0.0400 3.30 0.41 Pipe Channel, E-F 24.0" Round w/ 22.0" inside fill Area= 0.1 sf Perim= 2.3' r= 0.05' n= 0.013 17.5 810 Total Type II 24-hr 10-yr Rainfall=3.43"CU NCRE HYDROLOGY CD Printed 2/5/2019Prepared by Microsoft Page 12HydroCAD® 10.00-22 s/n 05659 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment S2E: SUBAREA 2 EXISTING Runoff = 6.96 cfs @ 12.10 hrs, Volume= 0.448 af, Depth> 1.88" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-20.00 hrs, dt= 0.01 hrs Type II 24-hr 10-yr Rainfall=3.43" Area (ac) CN Description * 1.420 74 Lawn, Landscaped * 1.440 98 Paved, Roof 2.860 86 Weighted Average 1.420 49.65% Pervious Area 1.440 50.35% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 14.2 100 0.0300 0.12 Sheet Flow, A-B Grass: Dense n= 0.240 P2= 2.34" 0.9 230 0.0650 4.10 Shallow Concentrated Flow, B-C Unpaved Kv= 16.1 fps 2.4 360 0.0600 2.54 0.06 Pipe Channel, C-D 8.0" Round w/ 7.0" inside fill Area= 0.0 sf Perim= 0.9' r= 0.03' n= 0.013 17.5 690 Total Type II 24-hr 10-yr Rainfall=3.43"CU NCRE HYDROLOGY CD Printed 2/5/2019Prepared by Microsoft Page 13HydroCAD® 10.00-22 s/n 05659 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment S3E: SUBAREA 3 EXISTING Runoff = 34.15 cfs @ 12.16 hrs, Volume= 2.633 af, Depth> 2.13" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-20.00 hrs, dt= 0.01 hrs Type II 24-hr 10-yr Rainfall=3.43" Area (ac) CN Description * 5.770 74 LAWN, LANDSCAPE * 9.090 98 ROOF, PAVED 14.860 89 Weighted Average 5.770 38.83% Pervious Area 9.090 61.17% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 16.7 100 0.0200 0.10 Sheet Flow, A-B Grass: Dense n= 0.240 P2= 2.34" 0.7 130 0.0400 3.22 Shallow Concentrated Flow, B-C Unpaved Kv= 16.1 fps 0.1 25 0.2500 8.05 Shallow Concentrated Flow, C-D Unpaved Kv= 16.1 fps 1.1 140 0.0400 2.07 0.05 Pipe Channel, D-E 8.0" Round w/ 7.0" inside fill Area= 0.0 sf Perim= 0.9' r= 0.03' n= 0.013 5.0 1,150 0.0220 3.86 1.33 Pipe Channel, E-F 24.0" Round w/ 20.0" inside fill Area= 0.3 sf Perim= 3.2' r= 0.11' n= 0.013 23.6 1,545 Total Type II 24-hr 10-yr Rainfall=3.43"CU NCRE HYDROLOGY CD Printed 2/5/2019Prepared by Microsoft Page 14HydroCAD® 10.00-22 s/n 05659 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment S4E: SUBAREA 4 EXISTING Runoff = 19.33 cfs @ 12.17 hrs, Volume= 1.463 af, Depth> 1.72" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-20.00 hrs, dt= 0.01 hrs Type II 24-hr 10-yr Rainfall=3.43" Area (ac) CN Description * 5.770 74 LAWN, LANDSCAPE * 4.420 98 ROOF, PAVED 10.190 84 Weighted Average 5.770 56.62% Pervious Area 4.420 43.38% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 14.2 100 0.0300 0.12 Sheet Flow, A-B Grass: Dense n= 0.240 P2= 2.34" 0.4 150 0.0800 6.02 0.92 Pipe Channel, B-C 12.0" Round w/ 9.0" inside fill Area= 0.2 sf Perim= 1.9' r= 0.08' n= 0.013 4.9 560 0.0340 1.92 0.06 Pipe Channel, C-D 12.0" Round w/ 11.0" inside fill Area= 0.0 sf Perim= 1.1' r= 0.03' n= 0.013 4.0 560 0.0200 2.33 0.25 Pipe Channel, D-E 18.0" Round w/ 16.0" inside fill Area= 0.1 sf Perim= 2.0' r= 0.05' n= 0.013 23.5 1,370 Total Type II 24-hr 10-yr Rainfall=3.43"CU NCRE HYDROLOGY CD Printed 2/5/2019Prepared by Microsoft Page 15HydroCAD® 10.00-22 s/n 05659 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment S5E: SUBAREA 5 EXISTING Runoff = 50.07 cfs @ 12.33 hrs, Volume= 5.089 af, Depth> 1.71" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-20.00 hrs, dt= 0.01 hrs Type II 24-hr 10-yr Rainfall=3.43" Area (ac) CN Description * 21.500 74 LAWN, LANDSCAPE * 14.120 98 ROOF, PAVED 35.620 84 Weighted Average 21.500 60.36% Pervious Area 14.120 39.64% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 22.0 100 0.0100 0.08 Sheet Flow, A-B Grass: Dense n= 0.240 P2= 2.34" 0.7 70 0.0100 1.61 Shallow Concentrated Flow, B-C Unpaved Kv= 16.1 fps 4.6 350 0.0150 1.27 0.03 Pipe Channel, C-D 8.0" Round w/ 7.0" inside fill Area= 0.0 sf Perim= 0.9' r= 0.03' n= 0.013 4.6 475 0.0110 1.73 0.19 Pipe Channel, D-E 18.0" Round w/ 16.0" inside fill Area= 0.1 sf Perim= 2.0' r= 0.05' n= 0.013 5.3 1,520 0.0200 4.82 3.73 Pipe Channel, E-F 36.0" Round w/ 30.0" inside fill Area= 0.8 sf Perim= 4.8' r= 0.16' n= 0.013 37.2 2,515 Total Type II 24-hr 25-yr Rainfall=4.26"CU NCRE HYDROLOGY CD Printed 2/5/2019Prepared by Microsoft Page 16HydroCAD® 10.00-22 s/n 05659 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment S1E: SUBAREA 1 EXISTING Runoff = 21.35 cfs @ 12.09 hrs, Volume= 1.390 af, Depth> 2.58" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-20.00 hrs, dt= 0.01 hrs Type II 24-hr 25-yr Rainfall=4.26" Area (ac) CN Description * 3.190 74 Lawn, Landscape * 3.270 98 Paved, roof 6.460 86 Weighted Average 3.190 49.38% Pervious Area 3.270 50.62% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 14.2 100 0.0300 0.12 Sheet Flow, A-B Grass: Dense n= 0.240 P2= 2.34" 0.6 150 0.0600 3.94 Shallow Concentrated Flow, B-C Unpaved Kv= 16.1 fps 0.7 140 0.0250 3.21 Shallow Concentrated Flow, C-D Paved Kv= 20.3 fps 0.9 200 0.0500 3.66 0.32 Pipe Channel, D-E 12.0" Round w/ 10.0" inside fill Area= 0.1 sf Perim= 1.6' r= 0.05' n= 0.013 1.1 220 0.0400 3.30 0.41 Pipe Channel, E-F 24.0" Round w/ 22.0" inside fill Area= 0.1 sf Perim= 2.3' r= 0.05' n= 0.013 17.5 810 Total Type II 24-hr 25-yr Rainfall=4.26"CU NCRE HYDROLOGY CD Printed 2/5/2019Prepared by Microsoft Page 17HydroCAD® 10.00-22 s/n 05659 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment S2E: SUBAREA 2 EXISTING Runoff = 9.45 cfs @ 12.09 hrs, Volume= 0.616 af, Depth> 2.58" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-20.00 hrs, dt= 0.01 hrs Type II 24-hr 25-yr Rainfall=4.26" Area (ac) CN Description * 1.420 74 Lawn, Landscaped * 1.440 98 Paved, Roof 2.860 86 Weighted Average 1.420 49.65% Pervious Area 1.440 50.35% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 14.2 100 0.0300 0.12 Sheet Flow, A-B Grass: Dense n= 0.240 P2= 2.34" 0.9 230 0.0650 4.10 Shallow Concentrated Flow, B-C Unpaved Kv= 16.1 fps 2.4 360 0.0600 2.54 0.06 Pipe Channel, C-D 8.0" Round w/ 7.0" inside fill Area= 0.0 sf Perim= 0.9' r= 0.03' n= 0.013 17.5 690 Total Type II 24-hr 25-yr Rainfall=4.26"CU NCRE HYDROLOGY CD Printed 2/5/2019Prepared by Microsoft Page 18HydroCAD® 10.00-22 s/n 05659 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment S3E: SUBAREA 3 EXISTING Runoff = 45.31 cfs @ 12.16 hrs, Volume= 3.536 af, Depth> 2.86" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-20.00 hrs, dt= 0.01 hrs Type II 24-hr 25-yr Rainfall=4.26" Area (ac) CN Description * 5.770 74 LAWN, LANDSCAPE * 9.090 98 ROOF, PAVED 14.860 89 Weighted Average 5.770 38.83% Pervious Area 9.090 61.17% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 16.7 100 0.0200 0.10 Sheet Flow, A-B Grass: Dense n= 0.240 P2= 2.34" 0.7 130 0.0400 3.22 Shallow Concentrated Flow, B-C Unpaved Kv= 16.1 fps 0.1 25 0.2500 8.05 Shallow Concentrated Flow, C-D Unpaved Kv= 16.1 fps 1.1 140 0.0400 2.07 0.05 Pipe Channel, D-E 8.0" Round w/ 7.0" inside fill Area= 0.0 sf Perim= 0.9' r= 0.03' n= 0.013 5.0 1,150 0.0220 3.86 1.33 Pipe Channel, E-F 24.0" Round w/ 20.0" inside fill Area= 0.3 sf Perim= 3.2' r= 0.11' n= 0.013 23.6 1,545 Total Type II 24-hr 25-yr Rainfall=4.26"CU NCRE HYDROLOGY CD Printed 2/5/2019Prepared by Microsoft Page 19HydroCAD® 10.00-22 s/n 05659 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment S4E: SUBAREA 4 EXISTING Runoff = 26.79 cfs @ 12.17 hrs, Volume= 2.040 af, Depth> 2.40" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-20.00 hrs, dt= 0.01 hrs Type II 24-hr 25-yr Rainfall=4.26" Area (ac) CN Description * 5.770 74 LAWN, LANDSCAPE * 4.420 98 ROOF, PAVED 10.190 84 Weighted Average 5.770 56.62% Pervious Area 4.420 43.38% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 14.2 100 0.0300 0.12 Sheet Flow, A-B Grass: Dense n= 0.240 P2= 2.34" 0.4 150 0.0800 6.02 0.92 Pipe Channel, B-C 12.0" Round w/ 9.0" inside fill Area= 0.2 sf Perim= 1.9' r= 0.08' n= 0.013 4.9 560 0.0340 1.92 0.06 Pipe Channel, C-D 12.0" Round w/ 11.0" inside fill Area= 0.0 sf Perim= 1.1' r= 0.03' n= 0.013 4.0 560 0.0200 2.33 0.25 Pipe Channel, D-E 18.0" Round w/ 16.0" inside fill Area= 0.1 sf Perim= 2.0' r= 0.05' n= 0.013 23.5 1,370 Total Type II 24-hr 25-yr Rainfall=4.26"CU NCRE HYDROLOGY CD Printed 2/5/2019Prepared by Microsoft Page 20HydroCAD® 10.00-22 s/n 05659 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment S5E: SUBAREA 5 EXISTING Runoff = 69.67 cfs @ 12.32 hrs, Volume= 7.095 af, Depth> 2.39" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-20.00 hrs, dt= 0.01 hrs Type II 24-hr 25-yr Rainfall=4.26" Area (ac) CN Description * 21.500 74 LAWN, LANDSCAPE * 14.120 98 ROOF, PAVED 35.620 84 Weighted Average 21.500 60.36% Pervious Area 14.120 39.64% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 22.0 100 0.0100 0.08 Sheet Flow, A-B Grass: Dense n= 0.240 P2= 2.34" 0.7 70 0.0100 1.61 Shallow Concentrated Flow, B-C Unpaved Kv= 16.1 fps 4.6 350 0.0150 1.27 0.03 Pipe Channel, C-D 8.0" Round w/ 7.0" inside fill Area= 0.0 sf Perim= 0.9' r= 0.03' n= 0.013 4.6 475 0.0110 1.73 0.19 Pipe Channel, D-E 18.0" Round w/ 16.0" inside fill Area= 0.1 sf Perim= 2.0' r= 0.05' n= 0.013 5.3 1,520 0.0200 4.82 3.73 Pipe Channel, E-F 36.0" Round w/ 30.0" inside fill Area= 0.8 sf Perim= 4.8' r= 0.16' n= 0.013 37.2 2,515 Total Type II 24-hr 100-yr Rainfall=5.93"CU NCRE HYDROLOGY CD Printed 2/5/2019Prepared by Microsoft Page 21HydroCAD® 10.00-22 s/n 05659 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment S1E: SUBAREA 1 EXISTING Runoff = 32.80 cfs @ 12.09 hrs, Volume= 2.182 af, Depth> 4.05" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-20.00 hrs, dt= 0.01 hrs Type II 24-hr 100-yr Rainfall=5.93" Area (ac) CN Description * 3.190 74 Lawn, Landscape * 3.270 98 Paved, roof 6.460 86 Weighted Average 3.190 49.38% Pervious Area 3.270 50.62% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 14.2 100 0.0300 0.12 Sheet Flow, A-B Grass: Dense n= 0.240 P2= 2.34" 0.6 150 0.0600 3.94 Shallow Concentrated Flow, B-C Unpaved Kv= 16.1 fps 0.7 140 0.0250 3.21 Shallow Concentrated Flow, C-D Paved Kv= 20.3 fps 0.9 200 0.0500 3.66 0.32 Pipe Channel, D-E 12.0" Round w/ 10.0" inside fill Area= 0.1 sf Perim= 1.6' r= 0.05' n= 0.013 1.1 220 0.0400 3.30 0.41 Pipe Channel, E-F 24.0" Round w/ 22.0" inside fill Area= 0.1 sf Perim= 2.3' r= 0.05' n= 0.013 17.5 810 Total Type II 24-hr 100-yr Rainfall=5.93"CU NCRE HYDROLOGY CD Printed 2/5/2019Prepared by Microsoft Page 22HydroCAD® 10.00-22 s/n 05659 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment S2E: SUBAREA 2 EXISTING Runoff = 14.52 cfs @ 12.09 hrs, Volume= 0.966 af, Depth> 4.05" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-20.00 hrs, dt= 0.01 hrs Type II 24-hr 100-yr Rainfall=5.93" Area (ac) CN Description * 1.420 74 Lawn, Landscaped * 1.440 98 Paved, Roof 2.860 86 Weighted Average 1.420 49.65% Pervious Area 1.440 50.35% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 14.2 100 0.0300 0.12 Sheet Flow, A-B Grass: Dense n= 0.240 P2= 2.34" 0.9 230 0.0650 4.10 Shallow Concentrated Flow, B-C Unpaved Kv= 16.1 fps 2.4 360 0.0600 2.54 0.06 Pipe Channel, C-D 8.0" Round w/ 7.0" inside fill Area= 0.0 sf Perim= 0.9' r= 0.03' n= 0.013 17.5 690 Total Type II 24-hr 100-yr Rainfall=5.93"CU NCRE HYDROLOGY CD Printed 2/5/2019Prepared by Microsoft Page 23HydroCAD® 10.00-22 s/n 05659 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment S3E: SUBAREA 3 EXISTING Runoff = 67.76 cfs @ 12.16 hrs, Volume= 5.405 af, Depth> 4.36" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-20.00 hrs, dt= 0.01 hrs Type II 24-hr 100-yr Rainfall=5.93" Area (ac) CN Description * 5.770 74 LAWN, LANDSCAPE * 9.090 98 ROOF, PAVED 14.860 89 Weighted Average 5.770 38.83% Pervious Area 9.090 61.17% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 16.7 100 0.0200 0.10 Sheet Flow, A-B Grass: Dense n= 0.240 P2= 2.34" 0.7 130 0.0400 3.22 Shallow Concentrated Flow, B-C Unpaved Kv= 16.1 fps 0.1 25 0.2500 8.05 Shallow Concentrated Flow, C-D Unpaved Kv= 16.1 fps 1.1 140 0.0400 2.07 0.05 Pipe Channel, D-E 8.0" Round w/ 7.0" inside fill Area= 0.0 sf Perim= 0.9' r= 0.03' n= 0.013 5.0 1,150 0.0220 3.86 1.33 Pipe Channel, E-F 24.0" Round w/ 20.0" inside fill Area= 0.3 sf Perim= 3.2' r= 0.11' n= 0.013 23.6 1,545 Total Type II 24-hr 100-yr Rainfall=5.93"CU NCRE HYDROLOGY CD Printed 2/5/2019Prepared by Microsoft Page 24HydroCAD® 10.00-22 s/n 05659 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment S4E: SUBAREA 4 EXISTING Runoff = 42.12 cfs @ 12.16 hrs, Volume= 3.260 af, Depth> 3.84" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-20.00 hrs, dt= 0.01 hrs Type II 24-hr 100-yr Rainfall=5.93" Area (ac) CN Description * 5.770 74 LAWN, LANDSCAPE * 4.420 98 ROOF, PAVED 10.190 84 Weighted Average 5.770 56.62% Pervious Area 4.420 43.38% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 14.2 100 0.0300 0.12 Sheet Flow, A-B Grass: Dense n= 0.240 P2= 2.34" 0.4 150 0.0800 6.02 0.92 Pipe Channel, B-C 12.0" Round w/ 9.0" inside fill Area= 0.2 sf Perim= 1.9' r= 0.08' n= 0.013 4.9 560 0.0340 1.92 0.06 Pipe Channel, C-D 12.0" Round w/ 11.0" inside fill Area= 0.0 sf Perim= 1.1' r= 0.03' n= 0.013 4.0 560 0.0200 2.33 0.25 Pipe Channel, D-E 18.0" Round w/ 16.0" inside fill Area= 0.1 sf Perim= 2.0' r= 0.05' n= 0.013 23.5 1,370 Total Type II 24-hr 100-yr Rainfall=5.93"CU NCRE HYDROLOGY CD Printed 2/5/2019Prepared by Microsoft Page 25HydroCAD® 10.00-22 s/n 05659 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment S5E: SUBAREA 5 EXISTING Runoff = 110.08 cfs @ 12.32 hrs, Volume= 11.345 af, Depth> 3.82" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-20.00 hrs, dt= 0.01 hrs Type II 24-hr 100-yr Rainfall=5.93" Area (ac) CN Description * 21.500 74 LAWN, LANDSCAPE * 14.120 98 ROOF, PAVED 35.620 84 Weighted Average 21.500 60.36% Pervious Area 14.120 39.64% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 22.0 100 0.0100 0.08 Sheet Flow, A-B Grass: Dense n= 0.240 P2= 2.34" 0.7 70 0.0100 1.61 Shallow Concentrated Flow, B-C Unpaved Kv= 16.1 fps 4.6 350 0.0150 1.27 0.03 Pipe Channel, C-D 8.0" Round w/ 7.0" inside fill Area= 0.0 sf Perim= 0.9' r= 0.03' n= 0.013 4.6 475 0.0110 1.73 0.19 Pipe Channel, D-E 18.0" Round w/ 16.0" inside fill Area= 0.1 sf Perim= 2.0' r= 0.05' n= 0.013 5.3 1,520 0.0200 4.82 3.73 Pipe Channel, E-F 36.0" Round w/ 30.0" inside fill Area= 0.8 sf Perim= 4.8' r= 0.16' n= 0.013 37.2 2,515 Total HYDROCAD CALCULATIONS REDEVELOPED SUBAREAS 1 AND 2 Type II 24-hr 1-yr Rainfall=2.01"CU NCRE HYDROLOGY CD Printed 2/5/2019Prepared by Microsoft Page 1HydroCAD® 10.00-22 s/n 05659 © 2018 HydroCAD Software Solutions LLC Summary for Link 5L: VCH-ROUTED Inflow Area = 9.600 ac, 51.77% Impervious, Inflow Depth > 0.68" for 1-yr event Inflow = 8.68 cfs @ 12.12 hrs, Volume= 0.541 af Primary = 8.68 cfs @ 12.12 hrs, Volume= 0.541 af, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow, Time Span= 0.00-20.00 hrs, dt= 0.01 hrs Type II 24-hr 1-yr Rainfall=2.01"CU NCRE HYDROLOGY CD Printed 2/5/2019Prepared by Microsoft Page 2HydroCAD® 10.00-22 s/n 05659 © 2018 HydroCAD Software Solutions LLC Summary for Pond FA: FILTER S1-A Inflow Area = 1.164 ac, 63.49% Impervious, Inflow Depth > 0.95" for 1-yr event Inflow = 1.86 cfs @ 12.02 hrs, Volume= 0.092 af Outflow = 0.86 cfs @ 12.14 hrs, Volume= 0.073 af, Atten= 54%, Lag= 7.6 min Discarded = 0.06 cfs @ 12.14 hrs, Volume= 0.046 af Primary = 0.79 cfs @ 12.14 hrs, Volume= 0.026 af Routing by Stor-Ind method, Time Span= 0.00-20.00 hrs, dt= 0.01 hrs Peak Elev= 865.60' @ 12.14 hrs Surf.Area= 2,639 sf Storage= 1,505 cf Plug-Flow detention time= 126.2 min calculated for 0.073 af (78% of inflow) Center-of-Mass det. time= 68.4 min ( 857.4 - 789.1 ) Volume Invert Avail.Storage Storage Description #1 865.00' 2,600 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 865.00 2,400 0 0 866.00 2,800 2,600 2,600 Device Routing Invert Outlet Devices #1 Primary 861.00'12.0" Round Culvert L= 30.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 861.00' / 860.00' S= 0.0333 '/' Cc= 0.900 n= 0.010, Flow Area= 0.79 sf #2 Device 1 865.50'8.0' long Sharp-Crested Rectangular Weir 0 End Contraction(s) #3 Discarded 865.00'1.000 in/hr Exfiltration over Surface area Conductivity to Groundwater Elevation = 0.00' Discarded OutFlow Max=0.06 cfs @ 12.14 hrs HW=865.60' (Free Discharge) 3=Exfiltration ( Controls 0.06 cfs) Primary OutFlow Max=0.79 cfs @ 12.14 hrs HW=865.60' TW=857.00' (Fixed TW Elev= 857.00') 1=Culvert (Passes 0.79 cfs of 7.65 cfs potential flow) 2=Sharp-Crested Rectangular Weir (Weir Controls 0.79 cfs @ 1.02 fps) Type II 24-hr 1-yr Rainfall=2.01"CU NCRE HYDROLOGY CD Printed 2/5/2019Prepared by Microsoft Page 3HydroCAD® 10.00-22 s/n 05659 © 2018 HydroCAD Software Solutions LLC Stage-Discharge for Pond FA: FILTER S1-A Elevation (feet) Discharge (cfs) Discarded (cfs) Primary (cfs) 865.00 0.00 0.00 0.00 865.01 0.06 0.06 0.00 865.02 0.06 0.06 0.00 865.03 0.06 0.06 0.00 865.04 0.06 0.06 0.00 865.05 0.06 0.06 0.00 865.06 0.06 0.06 0.00 865.07 0.06 0.06 0.00 865.08 0.06 0.06 0.00 865.09 0.06 0.06 0.00 865.10 0.06 0.06 0.00 865.11 0.06 0.06 0.00 865.12 0.06 0.06 0.00 865.13 0.06 0.06 0.00 865.14 0.06 0.06 0.00 865.15 0.06 0.06 0.00 865.16 0.06 0.06 0.00 865.17 0.06 0.06 0.00 865.18 0.06 0.06 0.00 865.19 0.06 0.06 0.00 865.20 0.06 0.06 0.00 865.21 0.06 0.06 0.00 865.22 0.06 0.06 0.00 865.23 0.06 0.06 0.00 865.24 0.06 0.06 0.00 865.25 0.06 0.06 0.00 865.26 0.06 0.06 0.00 865.27 0.06 0.06 0.00 865.28 0.06 0.06 0.00 865.29 0.06 0.06 0.00 865.30 0.06 0.06 0.00 865.31 0.06 0.06 0.00 865.32 0.06 0.06 0.00 865.33 0.06 0.06 0.00 865.34 0.06 0.06 0.00 865.35 0.06 0.06 0.00 865.36 0.06 0.06 0.00 865.37 0.06 0.06 0.00 865.38 0.06 0.06 0.00 865.39 0.06 0.06 0.00 865.40 0.06 0.06 0.00 865.41 0.06 0.06 0.00 865.42 0.06 0.06 0.00 865.43 0.06 0.06 0.00 865.44 0.06 0.06 0.00 865.45 0.06 0.06 0.00 865.46 0.06 0.06 0.00 865.47 0.06 0.06 0.00 865.48 0.06 0.06 0.00 865.49 0.06 0.06 0.00 865.50 0.06 0.06 0.00 865.51 0.09 0.06 0.03 865.52 0.13 0.06 0.07 Elevation (feet) Discharge (cfs) Discarded (cfs) Primary (cfs) 865.53 0.20 0.06 0.14 865.54 0.27 0.06 0.21 865.55 0.35 0.06 0.29 865.56 0.45 0.06 0.38 865.57 0.55 0.06 0.48 865.58 0.65 0.06 0.59 865.59 0.77 0.06 0.71 865.60 0.89 0.06 0.83 865.61 1.02 0.06 0.95 865.62 1.15 0.06 1.09 865.63 1.29 0.06 1.23 865.64 1.43 0.06 1.37 865.65 1.58 0.06 1.52 865.66 1.74 0.06 1.67 865.67 1.90 0.06 1.83 865.68 2.06 0.06 2.00 865.69 2.23 0.06 2.17 865.70 2.40 0.06 2.34 865.71 2.58 0.06 2.52 865.72 2.76 0.06 2.70 865.73 2.95 0.06 2.89 865.74 3.14 0.06 3.08 865.75 3.33 0.06 3.27 865.76 3.53 0.06 3.47 865.77 3.73 0.06 3.67 865.78 3.94 0.06 3.88 865.79 4.15 0.06 4.09 865.80 4.36 0.06 4.30 865.81 4.58 0.06 4.52 865.82 4.80 0.06 4.74 865.83 5.02 0.06 4.96 865.84 5.25 0.06 5.19 865.85 5.48 0.06 5.42 865.86 5.71 0.06 5.65 865.87 5.95 0.06 5.89 865.88 6.19 0.06 6.13 865.89 6.44 0.06 6.37 865.90 6.68 0.06 6.62 865.91 6.93 0.06 6.87 865.92 7.18 0.06 7.12 865.93 7.44 0.06 7.38 865.94 7.70 0.06 7.64 865.95 7.96 0.06 7.90 865.96 8.05 0.06 7.99 865.97 8.06 0.06 8.00 865.98 8.07 0.06 8.00 865.99 8.08 0.06 8.01 866.00 8.09 0.06 8.02 Type II 24-hr 1-yr Rainfall=2.01"CU NCRE HYDROLOGY CD Printed 2/5/2019Prepared by Microsoft Page 4HydroCAD® 10.00-22 s/n 05659 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond FA: FILTER S1-A Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 865.00 2,400 0 865.01 2,404 24 865.02 2,408 48 865.03 2,412 72 865.04 2,416 96 865.05 2,420 120 865.06 2,424 145 865.07 2,428 169 865.08 2,432 193 865.09 2,436 218 865.10 2,440 242 865.11 2,444 266 865.12 2,448 291 865.13 2,452 315 865.14 2,456 340 865.15 2,460 364 865.16 2,464 389 865.17 2,468 414 865.18 2,472 438 865.19 2,476 463 865.20 2,480 488 865.21 2,484 513 865.22 2,488 538 865.23 2,492 563 865.24 2,496 588 865.25 2,500 613 865.26 2,504 638 865.27 2,508 663 865.28 2,512 688 865.29 2,516 713 865.30 2,520 738 865.31 2,524 763 865.32 2,528 788 865.33 2,532 814 865.34 2,536 839 865.35 2,540 865 865.36 2,544 890 865.37 2,548 915 865.38 2,552 941 865.39 2,556 966 865.40 2,560 992 865.41 2,564 1,018 865.42 2,568 1,043 865.43 2,572 1,069 865.44 2,576 1,095 865.45 2,580 1,121 865.46 2,584 1,146 865.47 2,588 1,172 865.48 2,592 1,198 865.49 2,596 1,224 865.50 2,600 1,250 865.51 2,604 1,276 865.52 2,608 1,302 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 865.53 2,612 1,328 865.54 2,616 1,354 865.55 2,620 1,380 865.56 2,624 1,407 865.57 2,628 1,433 865.58 2,632 1,459 865.59 2,636 1,486 865.60 2,640 1,512 865.61 2,644 1,538 865.62 2,648 1,565 865.63 2,652 1,591 865.64 2,656 1,618 865.65 2,660 1,644 865.66 2,664 1,671 865.67 2,668 1,698 865.68 2,672 1,724 865.69 2,676 1,751 865.70 2,680 1,778 865.71 2,684 1,805 865.72 2,688 1,832 865.73 2,692 1,859 865.74 2,696 1,886 865.75 2,700 1,913 865.76 2,704 1,940 865.77 2,708 1,967 865.78 2,712 1,994 865.79 2,716 2,021 865.80 2,720 2,048 865.81 2,724 2,075 865.82 2,728 2,102 865.83 2,732 2,130 865.84 2,736 2,157 865.85 2,740 2,185 865.86 2,744 2,212 865.87 2,748 2,239 865.88 2,752 2,267 865.89 2,756 2,294 865.90 2,760 2,322 865.91 2,764 2,350 865.92 2,768 2,377 865.93 2,772 2,405 865.94 2,776 2,433 865.95 2,780 2,461 865.96 2,784 2,488 865.97 2,788 2,516 865.98 2,792 2,544 865.99 2,796 2,572 866.00 2,800 2,600 Type II 24-hr 1-yr Rainfall=2.01"CU NCRE HYDROLOGY CD Printed 2/5/2019Prepared by Microsoft Page 5HydroCAD® 10.00-22 s/n 05659 © 2018 HydroCAD Software Solutions LLC Summary for Pond FE: FILTER S1-E Inflow Area = 0.517 ac, 55.51% Impervious, Inflow Depth > 0.84" for 1-yr event Inflow = 0.88 cfs @ 11.96 hrs, Volume= 0.036 af Outflow = 0.05 cfs @ 12.97 hrs, Volume= 0.034 af, Atten= 94%, Lag= 60.1 min Discarded = 0.05 cfs @ 12.97 hrs, Volume= 0.034 af Primary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routing by Stor-Ind method, Time Span= 0.00-20.00 hrs, dt= 0.01 hrs Peak Elev= 851.39' @ 12.97 hrs Surf.Area= 2,120 sf Storage= 764 cf Plug-Flow detention time= 163.8 min calculated for 0.034 af (94% of inflow) Center-of-Mass det. time= 141.6 min ( 933.6 - 792.0 ) Volume Invert Avail.Storage Storage Description #1 851.00' 5,125 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 851.00 1,850 0 0 852.00 2,550 2,200 2,200 853.00 3,300 2,925 5,125 Device Routing Invert Outlet Devices #1 Primary 847.00'8.0" Round Culvert L= 220.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 847.00' / 843.50' S= 0.0159 '/' Cc= 0.900 n= 0.010, Flow Area= 0.35 sf #2 Device 1 851.50'8.0' long Sharp-Crested Rectangular Weir 2 End Contraction(s) #3 Discarded 851.00'1.000 in/hr Exfiltration over Surface area Conductivity to Groundwater Elevation = 0.00' Discarded OutFlow Max=0.05 cfs @ 12.97 hrs HW=851.39' (Free Discharge) 3=Exfiltration ( Controls 0.05 cfs) Primary OutFlow Max=0.00 cfs @ 0.00 hrs HW=851.00' TW=846.00' (Fixed TW Elev= 846.00') 1=Culvert (Passes 0.00 cfs of 2.15 cfs potential flow) 2=Sharp-Crested Rectangular Weir ( Controls 0.00 cfs) Type II 24-hr 1-yr Rainfall=2.01"CU NCRE HYDROLOGY CD Printed 2/5/2019Prepared by Microsoft Page 6HydroCAD® 10.00-22 s/n 05659 © 2018 HydroCAD Software Solutions LLC Stage-Discharge for Pond FE: FILTER S1-E Elevation (feet) Discharge (cfs) Discarded (cfs) Primary (cfs) 851.00 0.00 0.00 0.00 851.02 0.04 0.04 0.00 851.04 0.04 0.04 0.00 851.06 0.04 0.04 0.00 851.08 0.04 0.04 0.00 851.10 0.04 0.04 0.00 851.12 0.04 0.04 0.00 851.14 0.05 0.05 0.00 851.16 0.05 0.05 0.00 851.18 0.05 0.05 0.00 851.20 0.05 0.05 0.00 851.22 0.05 0.05 0.00 851.24 0.05 0.05 0.00 851.26 0.05 0.05 0.00 851.28 0.05 0.05 0.00 851.30 0.05 0.05 0.00 851.32 0.05 0.05 0.00 851.34 0.05 0.05 0.00 851.36 0.05 0.05 0.00 851.38 0.05 0.05 0.00 851.40 0.05 0.05 0.00 851.42 0.05 0.05 0.00 851.44 0.05 0.05 0.00 851.46 0.05 0.05 0.00 851.48 0.05 0.05 0.00 851.50 0.05 0.05 0.00 851.52 0.13 0.05 0.07 851.54 0.26 0.05 0.21 851.56 0.44 0.05 0.38 851.58 0.64 0.05 0.59 851.60 0.88 0.05 0.83 851.62 1.14 0.05 1.08 851.64 1.42 0.05 1.37 851.66 1.72 0.05 1.67 851.68 2.04 0.05 1.99 851.70 2.35 0.05 2.29 851.72 2.35 0.05 2.30 851.74 2.35 0.05 2.30 851.76 2.36 0.06 2.30 851.78 2.36 0.06 2.31 851.80 2.37 0.06 2.31 851.82 2.37 0.06 2.32 851.84 2.38 0.06 2.32 851.86 2.38 0.06 2.32 851.88 2.38 0.06 2.33 851.90 2.39 0.06 2.33 851.92 2.39 0.06 2.34 851.94 2.40 0.06 2.34 851.96 2.40 0.06 2.34 851.98 2.41 0.06 2.35 852.00 2.41 0.06 2.35 852.02 2.41 0.06 2.36 852.04 2.42 0.06 2.36 Elevation (feet) Discharge (cfs) Discarded (cfs) Primary (cfs) 852.06 2.42 0.06 2.36 852.08 2.43 0.06 2.37 852.10 2.43 0.06 2.37 852.12 2.44 0.06 2.37 852.14 2.44 0.06 2.38 852.16 2.44 0.06 2.38 852.18 2.45 0.06 2.39 852.20 2.45 0.06 2.39 852.22 2.46 0.06 2.39 852.24 2.46 0.06 2.40 852.26 2.47 0.06 2.40 852.28 2.47 0.06 2.41 852.30 2.47 0.06 2.41 852.32 2.48 0.06 2.41 852.34 2.48 0.07 2.42 852.36 2.49 0.07 2.42 852.38 2.49 0.07 2.42 852.40 2.49 0.07 2.43 852.42 2.50 0.07 2.43 852.44 2.50 0.07 2.44 852.46 2.51 0.07 2.44 852.48 2.51 0.07 2.44 852.50 2.51 0.07 2.45 852.52 2.52 0.07 2.45 852.54 2.52 0.07 2.45 852.56 2.53 0.07 2.46 852.58 2.53 0.07 2.46 852.60 2.54 0.07 2.47 852.62 2.54 0.07 2.47 852.64 2.54 0.07 2.47 852.66 2.55 0.07 2.48 852.68 2.55 0.07 2.48 852.70 2.56 0.07 2.48 852.72 2.56 0.07 2.49 852.74 2.56 0.07 2.49 852.76 2.57 0.07 2.50 852.78 2.57 0.07 2.50 852.80 2.58 0.07 2.50 852.82 2.58 0.07 2.51 852.84 2.58 0.07 2.51 852.86 2.59 0.07 2.51 852.88 2.59 0.07 2.52 852.90 2.60 0.07 2.52 852.92 2.60 0.08 2.52 852.94 2.60 0.08 2.53 852.96 2.61 0.08 2.53 852.98 2.61 0.08 2.54 853.00 2.62 0.08 2.54 Type II 24-hr 1-yr Rainfall=2.01"CU NCRE HYDROLOGY CD Printed 2/5/2019Prepared by Microsoft Page 7HydroCAD® 10.00-22 s/n 05659 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond FE: FILTER S1-E Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 851.00 1,850 0 851.02 1,864 37 851.04 1,878 75 851.06 1,892 112 851.08 1,906 150 851.10 1,920 189 851.12 1,934 227 851.14 1,948 266 851.16 1,962 305 851.18 1,976 344 851.20 1,990 384 851.22 2,004 424 851.24 2,018 464 851.26 2,032 505 851.28 2,046 545 851.30 2,060 586 851.32 2,074 628 851.34 2,088 669 851.36 2,102 711 851.38 2,116 754 851.40 2,130 796 851.42 2,144 839 851.44 2,158 882 851.46 2,172 925 851.48 2,186 969 851.50 2,200 1,013 851.52 2,214 1,057 851.54 2,228 1,101 851.56 2,242 1,146 851.58 2,256 1,191 851.60 2,270 1,236 851.62 2,284 1,282 851.64 2,298 1,327 851.66 2,312 1,373 851.68 2,326 1,420 851.70 2,340 1,467 851.72 2,354 1,513 851.74 2,368 1,561 851.76 2,382 1,608 851.78 2,396 1,656 851.80 2,410 1,704 851.82 2,424 1,752 851.84 2,438 1,801 851.86 2,452 1,850 851.88 2,466 1,899 851.90 2,480 1,948 851.92 2,494 1,998 851.94 2,508 2,048 851.96 2,522 2,099 851.98 2,536 2,149 852.00 2,550 2,200 852.02 2,565 2,251 852.04 2,580 2,303 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 852.06 2,595 2,354 852.08 2,610 2,406 852.10 2,625 2,459 852.12 2,640 2,511 852.14 2,655 2,564 852.16 2,670 2,618 852.18 2,685 2,671 852.20 2,700 2,725 852.22 2,715 2,779 852.24 2,730 2,834 852.26 2,745 2,888 852.28 2,760 2,943 852.30 2,775 2,999 852.32 2,790 3,054 852.34 2,805 3,110 852.36 2,820 3,167 852.38 2,835 3,223 852.40 2,850 3,280 852.42 2,865 3,337 852.44 2,880 3,395 852.46 2,895 3,452 852.48 2,910 3,510 852.50 2,925 3,569 852.52 2,940 3,627 852.54 2,955 3,686 852.56 2,970 3,746 852.58 2,985 3,805 852.60 3,000 3,865 852.62 3,015 3,925 852.64 3,030 3,986 852.66 3,045 4,046 852.68 3,060 4,107 852.70 3,075 4,169 852.72 3,090 4,230 852.74 3,105 4,292 852.76 3,120 4,355 852.78 3,135 4,417 852.80 3,150 4,480 852.82 3,165 4,543 852.84 3,180 4,607 852.86 3,195 4,670 852.88 3,210 4,734 852.90 3,225 4,799 852.92 3,240 4,863 852.94 3,255 4,928 852.96 3,270 4,994 852.98 3,285 5,059 853.00 3,300 5,125 Type II 24-hr 1-yr Rainfall=2.01"CU NCRE HYDROLOGY CD Printed 2/5/2019Prepared by Microsoft Page 8HydroCAD® 10.00-22 s/n 05659 © 2018 HydroCAD Software Solutions LLC Summary for Link S1PC: SUBAREA 1 PROPOSED Inflow Area = 6.400 ac, 55.00% Impervious, Inflow Depth > 0.73" for 1-yr event Inflow = 6.33 cfs @ 12.12 hrs, Volume= 0.390 af Primary = 6.33 cfs @ 12.12 hrs, Volume= 0.390 af, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow, Time Span= 0.00-20.00 hrs, dt= 0.01 hrs Type II 24-hr 1-yr Rainfall=2.01"CU NCRE HYDROLOGY CD Printed 2/5/2019Prepared by Microsoft Page 9HydroCAD® 10.00-22 s/n 05659 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment S1T: TO FILTER A Runoff = 1.86 cfs @ 12.02 hrs, Volume= 0.092 af, Depth> 0.95" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-20.00 hrs, dt= 0.01 hrs Type II 24-hr 1-yr Rainfall=2.01" Area (ac) CN Description * 0.425 74 Lawn, Landscape * 0.739 98 Paved, roof 1.164 89 Weighted Average 0.425 36.51% Pervious Area 0.739 63.49% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, TO FILTER Type II 24-hr 1-yr Rainfall=2.01"CU NCRE HYDROLOGY CD Printed 2/5/2019Prepared by Microsoft Page 10HydroCAD® 10.00-22 s/n 05659 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment S1U: SUBAREA 1 P-UNTREATED Runoff = 5.61 cfs @ 12.10 hrs, Volume= 0.363 af, Depth> 0.83" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-20.00 hrs, dt= 0.01 hrs Type II 24-hr 1-yr Rainfall=2.01" Area (ac) CN Description * 2.455 74 Lawn, Landscape * 2.781 98 Paved, roof 5.236 87 Weighted Average 2.455 46.89% Pervious Area 2.781 53.11% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 14.2 100 0.0300 0.12 Sheet Flow, A-B Grass: Dense n= 0.240 P2= 2.34" 0.6 150 0.0600 3.94 Shallow Concentrated Flow, B-C Unpaved Kv= 16.1 fps 0.7 140 0.0250 3.21 Shallow Concentrated Flow, C-D Paved Kv= 20.3 fps 2.5 420 0.0300 2.84 0.24 Pipe Channel, D-E 12.0" Round w/ 10.0" inside fill Area= 0.1 sf Perim= 1.6' r= 0.05' n= 0.013 18.0 810 Total Type II 24-hr 1-yr Rainfall=2.01"CU NCRE HYDROLOGY CD Printed 2/5/2019Prepared by Microsoft Page 11HydroCAD® 10.00-22 s/n 05659 © 2018 HydroCAD Software Solutions LLC Summary for Link S2PC: SUBAREA 2 PROPOSED Inflow Area = 3.200 ac, 45.31% Impervious, Inflow Depth > 0.57" for 1-yr event Inflow = 2.36 cfs @ 12.11 hrs, Volume= 0.152 af Primary = 2.36 cfs @ 12.11 hrs, Volume= 0.152 af, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow, Time Span= 0.00-20.00 hrs, dt= 0.01 hrs Type II 24-hr 1-yr Rainfall=2.01"CU NCRE HYDROLOGY CD Printed 2/5/2019Prepared by Microsoft Page 12HydroCAD® 10.00-22 s/n 05659 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment S2T: TO FILTER S1-E Runoff = 0.88 cfs @ 11.96 hrs, Volume= 0.036 af, Depth> 0.84" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-20.00 hrs, dt= 0.01 hrs Type II 24-hr 1-yr Rainfall=2.01" Area (ac) CN Description * 0.230 74 Lawn, Landscaped * 0.287 98 Paved, Roof 0.517 87 Weighted Average 0.230 44.49% Pervious Area 0.287 55.51% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, TO FILTER BASIN Type II 24-hr 1-yr Rainfall=2.01"CU NCRE HYDROLOGY CD Printed 2/5/2019Prepared by Microsoft Page 13HydroCAD® 10.00-22 s/n 05659 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment S2U: SUBAREA 2P UNTREATED Runoff = 2.36 cfs @ 12.11 hrs, Volume= 0.152 af, Depth> 0.68" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-20.00 hrs, dt= 0.01 hrs Type II 24-hr 1-yr Rainfall=2.01" Area (ac) CN Description * 1.520 74 Lawn, Landscaped * 1.163 98 Paved, Roof 2.683 84 Weighted Average 1.520 56.65% Pervious Area 1.163 43.35% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 14.2 100 0.0300 0.12 Sheet Flow, A-B Grass: Dense n= 0.240 P2= 2.34" 0.9 230 0.0650 4.10 Shallow Concentrated Flow, B-C Unpaved Kv= 16.1 fps 2.4 360 0.0600 2.54 0.06 Pipe Channel, C-D 8.0" Round w/ 7.0" inside fill Area= 0.0 sf Perim= 0.9' r= 0.03' n= 0.013 17.5 690 Total Type II 24-hr 2-yr Rainfall=2.34"CU NCRE HYDROLOGY CD Printed 2/5/2019Prepared by Microsoft Page 16HydroCAD® 10.00-22 s/n 05659 © 2018 HydroCAD Software Solutions LLC Summary for Link 5L: VCH-ROUTED Inflow Area = 9.600 ac, 51.77% Impervious, Inflow Depth > 0.90" for 2-yr event Inflow = 12.01 cfs @ 12.10 hrs, Volume= 0.720 af Primary = 12.01 cfs @ 12.10 hrs, Volume= 0.720 af, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow, Time Span= 0.00-20.00 hrs, dt= 0.01 hrs Type II 24-hr 2-yr Rainfall=2.34"CU NCRE HYDROLOGY CD Printed 2/5/2019Prepared by Microsoft Page 17HydroCAD® 10.00-22 s/n 05659 © 2018 HydroCAD Software Solutions LLC Summary for Pond FA: FILTER S1-A Inflow Area = 1.164 ac, 63.49% Impervious, Inflow Depth > 1.22" for 2-yr event Inflow = 2.35 cfs @ 12.02 hrs, Volume= 0.118 af Outflow = 1.64 cfs @ 12.10 hrs, Volume= 0.095 af, Atten= 30%, Lag= 4.8 min Discarded = 0.06 cfs @ 12.10 hrs, Volume= 0.049 af Primary = 1.58 cfs @ 12.10 hrs, Volume= 0.046 af Routing by Stor-Ind method, Time Span= 0.00-20.00 hrs, dt= 0.01 hrs Peak Elev= 865.65' @ 12.10 hrs Surf.Area= 2,661 sf Storage= 1,654 cf Plug-Flow detention time= 99.5 min calculated for 0.095 af (80% of inflow) Center-of-Mass det. time= 45.4 min ( 829.3 - 783.8 ) Volume Invert Avail.Storage Storage Description #1 865.00' 2,600 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 865.00 2,400 0 0 866.00 2,800 2,600 2,600 Device Routing Invert Outlet Devices #1 Primary 861.00'12.0" Round Culvert L= 30.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 861.00' / 860.00' S= 0.0333 '/' Cc= 0.900 n= 0.010, Flow Area= 0.79 sf #2 Device 1 865.50'8.0' long Sharp-Crested Rectangular Weir 0 End Contraction(s) #3 Discarded 865.00'1.000 in/hr Exfiltration over Surface area Conductivity to Groundwater Elevation = 0.00' Discarded OutFlow Max=0.06 cfs @ 12.10 hrs HW=865.65' (Free Discharge) 3=Exfiltration ( Controls 0.06 cfs) Primary OutFlow Max=1.57 cfs @ 12.10 hrs HW=865.65' TW=857.00' (Fixed TW Elev= 857.00') 1=Culvert (Passes 1.57 cfs of 7.71 cfs potential flow) 2=Sharp-Crested Rectangular Weir (Weir Controls 1.57 cfs @ 1.28 fps) Type II 24-hr 2-yr Rainfall=2.34"CU NCRE HYDROLOGY CD Printed 2/5/2019Prepared by Microsoft Page 18HydroCAD® 10.00-22 s/n 05659 © 2018 HydroCAD Software Solutions LLC Stage-Discharge for Pond FA: FILTER S1-A Elevation (feet) Discharge (cfs) Discarded (cfs) Primary (cfs) 865.00 0.00 0.00 0.00 865.01 0.06 0.06 0.00 865.02 0.06 0.06 0.00 865.03 0.06 0.06 0.00 865.04 0.06 0.06 0.00 865.05 0.06 0.06 0.00 865.06 0.06 0.06 0.00 865.07 0.06 0.06 0.00 865.08 0.06 0.06 0.00 865.09 0.06 0.06 0.00 865.10 0.06 0.06 0.00 865.11 0.06 0.06 0.00 865.12 0.06 0.06 0.00 865.13 0.06 0.06 0.00 865.14 0.06 0.06 0.00 865.15 0.06 0.06 0.00 865.16 0.06 0.06 0.00 865.17 0.06 0.06 0.00 865.18 0.06 0.06 0.00 865.19 0.06 0.06 0.00 865.20 0.06 0.06 0.00 865.21 0.06 0.06 0.00 865.22 0.06 0.06 0.00 865.23 0.06 0.06 0.00 865.24 0.06 0.06 0.00 865.25 0.06 0.06 0.00 865.26 0.06 0.06 0.00 865.27 0.06 0.06 0.00 865.28 0.06 0.06 0.00 865.29 0.06 0.06 0.00 865.30 0.06 0.06 0.00 865.31 0.06 0.06 0.00 865.32 0.06 0.06 0.00 865.33 0.06 0.06 0.00 865.34 0.06 0.06 0.00 865.35 0.06 0.06 0.00 865.36 0.06 0.06 0.00 865.37 0.06 0.06 0.00 865.38 0.06 0.06 0.00 865.39 0.06 0.06 0.00 865.40 0.06 0.06 0.00 865.41 0.06 0.06 0.00 865.42 0.06 0.06 0.00 865.43 0.06 0.06 0.00 865.44 0.06 0.06 0.00 865.45 0.06 0.06 0.00 865.46 0.06 0.06 0.00 865.47 0.06 0.06 0.00 865.48 0.06 0.06 0.00 865.49 0.06 0.06 0.00 865.50 0.06 0.06 0.00 865.51 0.09 0.06 0.03 865.52 0.13 0.06 0.07 Elevation (feet) Discharge (cfs) Discarded (cfs) Primary (cfs) 865.53 0.20 0.06 0.14 865.54 0.27 0.06 0.21 865.55 0.35 0.06 0.29 865.56 0.45 0.06 0.38 865.57 0.55 0.06 0.48 865.58 0.65 0.06 0.59 865.59 0.77 0.06 0.71 865.60 0.89 0.06 0.83 865.61 1.02 0.06 0.95 865.62 1.15 0.06 1.09 865.63 1.29 0.06 1.23 865.64 1.43 0.06 1.37 865.65 1.58 0.06 1.52 865.66 1.74 0.06 1.67 865.67 1.90 0.06 1.83 865.68 2.06 0.06 2.00 865.69 2.23 0.06 2.17 865.70 2.40 0.06 2.34 865.71 2.58 0.06 2.52 865.72 2.76 0.06 2.70 865.73 2.95 0.06 2.89 865.74 3.14 0.06 3.08 865.75 3.33 0.06 3.27 865.76 3.53 0.06 3.47 865.77 3.73 0.06 3.67 865.78 3.94 0.06 3.88 865.79 4.15 0.06 4.09 865.80 4.36 0.06 4.30 865.81 4.58 0.06 4.52 865.82 4.80 0.06 4.74 865.83 5.02 0.06 4.96 865.84 5.25 0.06 5.19 865.85 5.48 0.06 5.42 865.86 5.71 0.06 5.65 865.87 5.95 0.06 5.89 865.88 6.19 0.06 6.13 865.89 6.44 0.06 6.37 865.90 6.68 0.06 6.62 865.91 6.93 0.06 6.87 865.92 7.18 0.06 7.12 865.93 7.44 0.06 7.38 865.94 7.70 0.06 7.64 865.95 7.96 0.06 7.90 865.96 8.05 0.06 7.99 865.97 8.06 0.06 8.00 865.98 8.07 0.06 8.00 865.99 8.08 0.06 8.01 866.00 8.09 0.06 8.02 Type II 24-hr 2-yr Rainfall=2.34"CU NCRE HYDROLOGY CD Printed 2/5/2019Prepared by Microsoft Page 19HydroCAD® 10.00-22 s/n 05659 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond FA: FILTER S1-A Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 865.00 2,400 0 865.01 2,404 24 865.02 2,408 48 865.03 2,412 72 865.04 2,416 96 865.05 2,420 120 865.06 2,424 145 865.07 2,428 169 865.08 2,432 193 865.09 2,436 218 865.10 2,440 242 865.11 2,444 266 865.12 2,448 291 865.13 2,452 315 865.14 2,456 340 865.15 2,460 364 865.16 2,464 389 865.17 2,468 414 865.18 2,472 438 865.19 2,476 463 865.20 2,480 488 865.21 2,484 513 865.22 2,488 538 865.23 2,492 563 865.24 2,496 588 865.25 2,500 613 865.26 2,504 638 865.27 2,508 663 865.28 2,512 688 865.29 2,516 713 865.30 2,520 738 865.31 2,524 763 865.32 2,528 788 865.33 2,532 814 865.34 2,536 839 865.35 2,540 865 865.36 2,544 890 865.37 2,548 915 865.38 2,552 941 865.39 2,556 966 865.40 2,560 992 865.41 2,564 1,018 865.42 2,568 1,043 865.43 2,572 1,069 865.44 2,576 1,095 865.45 2,580 1,121 865.46 2,584 1,146 865.47 2,588 1,172 865.48 2,592 1,198 865.49 2,596 1,224 865.50 2,600 1,250 865.51 2,604 1,276 865.52 2,608 1,302 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 865.53 2,612 1,328 865.54 2,616 1,354 865.55 2,620 1,380 865.56 2,624 1,407 865.57 2,628 1,433 865.58 2,632 1,459 865.59 2,636 1,486 865.60 2,640 1,512 865.61 2,644 1,538 865.62 2,648 1,565 865.63 2,652 1,591 865.64 2,656 1,618 865.65 2,660 1,644 865.66 2,664 1,671 865.67 2,668 1,698 865.68 2,672 1,724 865.69 2,676 1,751 865.70 2,680 1,778 865.71 2,684 1,805 865.72 2,688 1,832 865.73 2,692 1,859 865.74 2,696 1,886 865.75 2,700 1,913 865.76 2,704 1,940 865.77 2,708 1,967 865.78 2,712 1,994 865.79 2,716 2,021 865.80 2,720 2,048 865.81 2,724 2,075 865.82 2,728 2,102 865.83 2,732 2,130 865.84 2,736 2,157 865.85 2,740 2,185 865.86 2,744 2,212 865.87 2,748 2,239 865.88 2,752 2,267 865.89 2,756 2,294 865.90 2,760 2,322 865.91 2,764 2,350 865.92 2,768 2,377 865.93 2,772 2,405 865.94 2,776 2,433 865.95 2,780 2,461 865.96 2,784 2,488 865.97 2,788 2,516 865.98 2,792 2,544 865.99 2,796 2,572 866.00 2,800 2,600 Type II 24-hr 2-yr Rainfall=2.34"CU NCRE HYDROLOGY CD Printed 2/5/2019Prepared by Microsoft Page 20HydroCAD® 10.00-22 s/n 05659 © 2018 HydroCAD Software Solutions LLC Summary for Pond FE: FILTER S1-E Inflow Area = 0.517 ac, 55.51% Impervious, Inflow Depth > 1.09" for 2-yr event Inflow = 1.13 cfs @ 11.96 hrs, Volume= 0.047 af Outflow = 0.07 cfs @ 12.72 hrs, Volume= 0.037 af, Atten= 94%, Lag= 45.5 min Discarded = 0.05 cfs @ 12.72 hrs, Volume= 0.036 af Primary = 0.02 cfs @ 12.72 hrs, Volume= 0.001 af Routing by Stor-Ind method, Time Span= 0.00-20.00 hrs, dt= 0.01 hrs Peak Elev= 851.51' @ 12.72 hrs Surf.Area= 2,204 sf Storage= 1,025 cf Plug-Flow detention time= 191.4 min calculated for 0.037 af (80% of inflow) Center-of-Mass det. time= 135.7 min ( 922.1 - 786.5 ) Volume Invert Avail.Storage Storage Description #1 851.00' 5,125 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 851.00 1,850 0 0 852.00 2,550 2,200 2,200 853.00 3,300 2,925 5,125 Device Routing Invert Outlet Devices #1 Primary 847.00'8.0" Round Culvert L= 220.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 847.00' / 843.50' S= 0.0159 '/' Cc= 0.900 n= 0.010, Flow Area= 0.35 sf #2 Device 1 851.50'8.0' long Sharp-Crested Rectangular Weir 2 End Contraction(s) #3 Discarded 851.00'1.000 in/hr Exfiltration over Surface area Conductivity to Groundwater Elevation = 0.00' Discarded OutFlow Max=0.05 cfs @ 12.72 hrs HW=851.51' (Free Discharge) 3=Exfiltration ( Controls 0.05 cfs) Primary OutFlow Max=0.01 cfs @ 12.72 hrs HW=851.51' TW=846.00' (Fixed TW Elev= 846.00') 1=Culvert (Passes 0.01 cfs of 2.25 cfs potential flow) 2=Sharp-Crested Rectangular Weir (Weir Controls 0.01 cfs @ 0.25 fps) Type II 24-hr 2-yr Rainfall=2.34"CU NCRE HYDROLOGY CD Printed 2/5/2019Prepared by Microsoft Page 21HydroCAD® 10.00-22 s/n 05659 © 2018 HydroCAD Software Solutions LLC Stage-Discharge for Pond FE: FILTER S1-E Elevation (feet) Discharge (cfs) Discarded (cfs) Primary (cfs) 851.00 0.00 0.00 0.00 851.02 0.04 0.04 0.00 851.04 0.04 0.04 0.00 851.06 0.04 0.04 0.00 851.08 0.04 0.04 0.00 851.10 0.04 0.04 0.00 851.12 0.04 0.04 0.00 851.14 0.05 0.05 0.00 851.16 0.05 0.05 0.00 851.18 0.05 0.05 0.00 851.20 0.05 0.05 0.00 851.22 0.05 0.05 0.00 851.24 0.05 0.05 0.00 851.26 0.05 0.05 0.00 851.28 0.05 0.05 0.00 851.30 0.05 0.05 0.00 851.32 0.05 0.05 0.00 851.34 0.05 0.05 0.00 851.36 0.05 0.05 0.00 851.38 0.05 0.05 0.00 851.40 0.05 0.05 0.00 851.42 0.05 0.05 0.00 851.44 0.05 0.05 0.00 851.46 0.05 0.05 0.00 851.48 0.05 0.05 0.00 851.50 0.05 0.05 0.00 851.52 0.13 0.05 0.07 851.54 0.26 0.05 0.21 851.56 0.44 0.05 0.38 851.58 0.64 0.05 0.59 851.60 0.88 0.05 0.83 851.62 1.14 0.05 1.08 851.64 1.42 0.05 1.37 851.66 1.72 0.05 1.67 851.68 2.04 0.05 1.99 851.70 2.35 0.05 2.29 851.72 2.35 0.05 2.30 851.74 2.35 0.05 2.30 851.76 2.36 0.06 2.30 851.78 2.36 0.06 2.31 851.80 2.37 0.06 2.31 851.82 2.37 0.06 2.32 851.84 2.38 0.06 2.32 851.86 2.38 0.06 2.32 851.88 2.38 0.06 2.33 851.90 2.39 0.06 2.33 851.92 2.39 0.06 2.34 851.94 2.40 0.06 2.34 851.96 2.40 0.06 2.34 851.98 2.41 0.06 2.35 852.00 2.41 0.06 2.35 852.02 2.41 0.06 2.36 852.04 2.42 0.06 2.36 Elevation (feet) Discharge (cfs) Discarded (cfs) Primary (cfs) 852.06 2.42 0.06 2.36 852.08 2.43 0.06 2.37 852.10 2.43 0.06 2.37 852.12 2.44 0.06 2.37 852.14 2.44 0.06 2.38 852.16 2.44 0.06 2.38 852.18 2.45 0.06 2.39 852.20 2.45 0.06 2.39 852.22 2.46 0.06 2.39 852.24 2.46 0.06 2.40 852.26 2.47 0.06 2.40 852.28 2.47 0.06 2.41 852.30 2.47 0.06 2.41 852.32 2.48 0.06 2.41 852.34 2.48 0.07 2.42 852.36 2.49 0.07 2.42 852.38 2.49 0.07 2.42 852.40 2.49 0.07 2.43 852.42 2.50 0.07 2.43 852.44 2.50 0.07 2.44 852.46 2.51 0.07 2.44 852.48 2.51 0.07 2.44 852.50 2.51 0.07 2.45 852.52 2.52 0.07 2.45 852.54 2.52 0.07 2.45 852.56 2.53 0.07 2.46 852.58 2.53 0.07 2.46 852.60 2.54 0.07 2.47 852.62 2.54 0.07 2.47 852.64 2.54 0.07 2.47 852.66 2.55 0.07 2.48 852.68 2.55 0.07 2.48 852.70 2.56 0.07 2.48 852.72 2.56 0.07 2.49 852.74 2.56 0.07 2.49 852.76 2.57 0.07 2.50 852.78 2.57 0.07 2.50 852.80 2.58 0.07 2.50 852.82 2.58 0.07 2.51 852.84 2.58 0.07 2.51 852.86 2.59 0.07 2.51 852.88 2.59 0.07 2.52 852.90 2.60 0.07 2.52 852.92 2.60 0.08 2.52 852.94 2.60 0.08 2.53 852.96 2.61 0.08 2.53 852.98 2.61 0.08 2.54 853.00 2.62 0.08 2.54 Type II 24-hr 2-yr Rainfall=2.34"CU NCRE HYDROLOGY CD Printed 2/5/2019Prepared by Microsoft Page 22HydroCAD® 10.00-22 s/n 05659 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond FE: FILTER S1-E Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 851.00 1,850 0 851.02 1,864 37 851.04 1,878 75 851.06 1,892 112 851.08 1,906 150 851.10 1,920 189 851.12 1,934 227 851.14 1,948 266 851.16 1,962 305 851.18 1,976 344 851.20 1,990 384 851.22 2,004 424 851.24 2,018 464 851.26 2,032 505 851.28 2,046 545 851.30 2,060 586 851.32 2,074 628 851.34 2,088 669 851.36 2,102 711 851.38 2,116 754 851.40 2,130 796 851.42 2,144 839 851.44 2,158 882 851.46 2,172 925 851.48 2,186 969 851.50 2,200 1,013 851.52 2,214 1,057 851.54 2,228 1,101 851.56 2,242 1,146 851.58 2,256 1,191 851.60 2,270 1,236 851.62 2,284 1,282 851.64 2,298 1,327 851.66 2,312 1,373 851.68 2,326 1,420 851.70 2,340 1,467 851.72 2,354 1,513 851.74 2,368 1,561 851.76 2,382 1,608 851.78 2,396 1,656 851.80 2,410 1,704 851.82 2,424 1,752 851.84 2,438 1,801 851.86 2,452 1,850 851.88 2,466 1,899 851.90 2,480 1,948 851.92 2,494 1,998 851.94 2,508 2,048 851.96 2,522 2,099 851.98 2,536 2,149 852.00 2,550 2,200 852.02 2,565 2,251 852.04 2,580 2,303 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 852.06 2,595 2,354 852.08 2,610 2,406 852.10 2,625 2,459 852.12 2,640 2,511 852.14 2,655 2,564 852.16 2,670 2,618 852.18 2,685 2,671 852.20 2,700 2,725 852.22 2,715 2,779 852.24 2,730 2,834 852.26 2,745 2,888 852.28 2,760 2,943 852.30 2,775 2,999 852.32 2,790 3,054 852.34 2,805 3,110 852.36 2,820 3,167 852.38 2,835 3,223 852.40 2,850 3,280 852.42 2,865 3,337 852.44 2,880 3,395 852.46 2,895 3,452 852.48 2,910 3,510 852.50 2,925 3,569 852.52 2,940 3,627 852.54 2,955 3,686 852.56 2,970 3,746 852.58 2,985 3,805 852.60 3,000 3,865 852.62 3,015 3,925 852.64 3,030 3,986 852.66 3,045 4,046 852.68 3,060 4,107 852.70 3,075 4,169 852.72 3,090 4,230 852.74 3,105 4,292 852.76 3,120 4,355 852.78 3,135 4,417 852.80 3,150 4,480 852.82 3,165 4,543 852.84 3,180 4,607 852.86 3,195 4,670 852.88 3,210 4,734 852.90 3,225 4,799 852.92 3,240 4,863 852.94 3,255 4,928 852.96 3,270 4,994 852.98 3,285 5,059 853.00 3,300 5,125 Type II 24-hr 2-yr Rainfall=2.34"CU NCRE HYDROLOGY CD Printed 2/5/2019Prepared by Microsoft Page 23HydroCAD® 10.00-22 s/n 05659 © 2018 HydroCAD Software Solutions LLC Summary for Link S1PC: SUBAREA 1 PROPOSED Inflow Area = 6.400 ac, 55.00% Impervious, Inflow Depth > 0.97" for 2-yr event Inflow = 8.86 cfs @ 12.10 hrs, Volume= 0.517 af Primary = 8.86 cfs @ 12.10 hrs, Volume= 0.517 af, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow, Time Span= 0.00-20.00 hrs, dt= 0.01 hrs Type II 24-hr 2-yr Rainfall=2.34"CU NCRE HYDROLOGY CD Printed 2/5/2019Prepared by Microsoft Page 24HydroCAD® 10.00-22 s/n 05659 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment S1T: TO FILTER A Runoff = 2.35 cfs @ 12.02 hrs, Volume= 0.118 af, Depth> 1.22" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-20.00 hrs, dt= 0.01 hrs Type II 24-hr 2-yr Rainfall=2.34" Area (ac) CN Description * 0.425 74 Lawn, Landscape * 0.739 98 Paved, roof 1.164 89 Weighted Average 0.425 36.51% Pervious Area 0.739 63.49% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, TO FILTER Type II 24-hr 2-yr Rainfall=2.34"CU NCRE HYDROLOGY CD Printed 2/5/2019Prepared by Microsoft Page 25HydroCAD® 10.00-22 s/n 05659 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment S1U: SUBAREA 1 P-UNTREATED Runoff = 7.28 cfs @ 12.10 hrs, Volume= 0.471 af, Depth> 1.08" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-20.00 hrs, dt= 0.01 hrs Type II 24-hr 2-yr Rainfall=2.34" Area (ac) CN Description * 2.455 74 Lawn, Landscape * 2.781 98 Paved, roof 5.236 87 Weighted Average 2.455 46.89% Pervious Area 2.781 53.11% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 14.2 100 0.0300 0.12 Sheet Flow, A-B Grass: Dense n= 0.240 P2= 2.34" 0.6 150 0.0600 3.94 Shallow Concentrated Flow, B-C Unpaved Kv= 16.1 fps 0.7 140 0.0250 3.21 Shallow Concentrated Flow, C-D Paved Kv= 20.3 fps 2.5 420 0.0300 2.84 0.24 Pipe Channel, D-E 12.0" Round w/ 10.0" inside fill Area= 0.1 sf Perim= 1.6' r= 0.05' n= 0.013 18.0 810 Total Type II 24-hr 2-yr Rainfall=2.34"CU NCRE HYDROLOGY CD Printed 2/5/2019Prepared by Microsoft Page 26HydroCAD® 10.00-22 s/n 05659 © 2018 HydroCAD Software Solutions LLC Summary for Link S2PC: SUBAREA 2 PROPOSED Inflow Area = 3.200 ac, 45.31% Impervious, Inflow Depth > 0.76" for 2-yr event Inflow = 3.16 cfs @ 12.11 hrs, Volume= 0.203 af Primary = 3.16 cfs @ 12.11 hrs, Volume= 0.203 af, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow, Time Span= 0.00-20.00 hrs, dt= 0.01 hrs Type II 24-hr 2-yr Rainfall=2.34"CU NCRE HYDROLOGY CD Printed 2/5/2019Prepared by Microsoft Page 27HydroCAD® 10.00-22 s/n 05659 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment S2T: TO FILTER S1-E Runoff = 1.13 cfs @ 11.96 hrs, Volume= 0.047 af, Depth> 1.09" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-20.00 hrs, dt= 0.01 hrs Type II 24-hr 2-yr Rainfall=2.34" Area (ac) CN Description * 0.230 74 Lawn, Landscaped * 0.287 98 Paved, Roof 0.517 87 Weighted Average 0.230 44.49% Pervious Area 0.287 55.51% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, TO FILTER BASIN Type II 24-hr 2-yr Rainfall=2.34"CU NCRE HYDROLOGY CD Printed 2/5/2019Prepared by Microsoft Page 28HydroCAD® 10.00-22 s/n 05659 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment S2U: SUBAREA 2P UNTREATED Runoff = 3.16 cfs @ 12.11 hrs, Volume= 0.202 af, Depth> 0.90" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-20.00 hrs, dt= 0.01 hrs Type II 24-hr 2-yr Rainfall=2.34" Area (ac) CN Description * 1.520 74 Lawn, Landscaped * 1.163 98 Paved, Roof 2.683 84 Weighted Average 1.520 56.65% Pervious Area 1.163 43.35% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 14.2 100 0.0300 0.12 Sheet Flow, A-B Grass: Dense n= 0.240 P2= 2.34" 0.9 230 0.0650 4.10 Shallow Concentrated Flow, B-C Unpaved Kv= 16.1 fps 2.4 360 0.0600 2.54 0.06 Pipe Channel, C-D 8.0" Round w/ 7.0" inside fill Area= 0.0 sf Perim= 0.9' r= 0.03' n= 0.013 17.5 690 Total Type II 24-hr 10-yr Rainfall=3.43"CU NCRE HYDROLOGY CD Printed 2/5/2019Prepared by Microsoft Page 31HydroCAD® 10.00-22 s/n 05659 © 2018 HydroCAD Software Solutions LLC Summary for Link 5L: VCH-ROUTED Inflow Area = 9.600 ac, 51.77% Impervious, Inflow Depth > 1.74" for 10-yr event Inflow = 23.27 cfs @ 12.08 hrs, Volume= 1.392 af Primary = 23.27 cfs @ 12.08 hrs, Volume= 1.392 af, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow, Time Span= 0.00-20.00 hrs, dt= 0.01 hrs Type II 24-hr 10-yr Rainfall=3.43"CU NCRE HYDROLOGY CD Printed 2/5/2019Prepared by Microsoft Page 32HydroCAD® 10.00-22 s/n 05659 © 2018 HydroCAD Software Solutions LLC Summary for Pond FA: FILTER S1-A Inflow Area = 1.164 ac, 63.49% Impervious, Inflow Depth > 2.14" for 10-yr event Inflow = 4.02 cfs @ 12.01 hrs, Volume= 0.207 af Outflow = 3.75 cfs @ 12.05 hrs, Volume= 0.179 af, Atten= 7%, Lag= 2.1 min Discarded = 0.06 cfs @ 12.05 hrs, Volume= 0.056 af Primary = 3.68 cfs @ 12.05 hrs, Volume= 0.122 af Routing by Stor-Ind method, Time Span= 0.00-20.00 hrs, dt= 0.01 hrs Peak Elev= 865.77' @ 12.05 hrs Surf.Area= 2,708 sf Storage= 1,969 cf Plug-Flow detention time= 60.8 min calculated for 0.179 af (86% of inflow) Center-of-Mass det. time= 18.2 min ( 789.4 - 771.2 ) Volume Invert Avail.Storage Storage Description #1 865.00' 2,600 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 865.00 2,400 0 0 866.00 2,800 2,600 2,600 Device Routing Invert Outlet Devices #1 Primary 861.00'12.0" Round Culvert L= 30.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 861.00' / 860.00' S= 0.0333 '/' Cc= 0.900 n= 0.010, Flow Area= 0.79 sf #2 Device 1 865.50'8.0' long Sharp-Crested Rectangular Weir 0 End Contraction(s) #3 Discarded 865.00'1.000 in/hr Exfiltration over Surface area Conductivity to Groundwater Elevation = 0.00' Discarded OutFlow Max=0.06 cfs @ 12.05 hrs HW=865.77' (Free Discharge) 3=Exfiltration ( Controls 0.06 cfs) Primary OutFlow Max=3.68 cfs @ 12.05 hrs HW=865.77' TW=857.00' (Fixed TW Elev= 857.00') 1=Culvert (Passes 3.68 cfs of 7.82 cfs potential flow) 2=Sharp-Crested Rectangular Weir (Weir Controls 3.68 cfs @ 1.70 fps) Type II 24-hr 10-yr Rainfall=3.43"CU NCRE HYDROLOGY CD Printed 2/5/2019Prepared by Microsoft Page 33HydroCAD® 10.00-22 s/n 05659 © 2018 HydroCAD Software Solutions LLC Stage-Discharge for Pond FA: FILTER S1-A Elevation (feet) Discharge (cfs) Discarded (cfs) Primary (cfs) 865.00 0.00 0.00 0.00 865.01 0.06 0.06 0.00 865.02 0.06 0.06 0.00 865.03 0.06 0.06 0.00 865.04 0.06 0.06 0.00 865.05 0.06 0.06 0.00 865.06 0.06 0.06 0.00 865.07 0.06 0.06 0.00 865.08 0.06 0.06 0.00 865.09 0.06 0.06 0.00 865.10 0.06 0.06 0.00 865.11 0.06 0.06 0.00 865.12 0.06 0.06 0.00 865.13 0.06 0.06 0.00 865.14 0.06 0.06 0.00 865.15 0.06 0.06 0.00 865.16 0.06 0.06 0.00 865.17 0.06 0.06 0.00 865.18 0.06 0.06 0.00 865.19 0.06 0.06 0.00 865.20 0.06 0.06 0.00 865.21 0.06 0.06 0.00 865.22 0.06 0.06 0.00 865.23 0.06 0.06 0.00 865.24 0.06 0.06 0.00 865.25 0.06 0.06 0.00 865.26 0.06 0.06 0.00 865.27 0.06 0.06 0.00 865.28 0.06 0.06 0.00 865.29 0.06 0.06 0.00 865.30 0.06 0.06 0.00 865.31 0.06 0.06 0.00 865.32 0.06 0.06 0.00 865.33 0.06 0.06 0.00 865.34 0.06 0.06 0.00 865.35 0.06 0.06 0.00 865.36 0.06 0.06 0.00 865.37 0.06 0.06 0.00 865.38 0.06 0.06 0.00 865.39 0.06 0.06 0.00 865.40 0.06 0.06 0.00 865.41 0.06 0.06 0.00 865.42 0.06 0.06 0.00 865.43 0.06 0.06 0.00 865.44 0.06 0.06 0.00 865.45 0.06 0.06 0.00 865.46 0.06 0.06 0.00 865.47 0.06 0.06 0.00 865.48 0.06 0.06 0.00 865.49 0.06 0.06 0.00 865.50 0.06 0.06 0.00 865.51 0.09 0.06 0.03 865.52 0.13 0.06 0.07 Elevation (feet) Discharge (cfs) Discarded (cfs) Primary (cfs) 865.53 0.20 0.06 0.14 865.54 0.27 0.06 0.21 865.55 0.35 0.06 0.29 865.56 0.45 0.06 0.38 865.57 0.55 0.06 0.48 865.58 0.65 0.06 0.59 865.59 0.77 0.06 0.71 865.60 0.89 0.06 0.83 865.61 1.02 0.06 0.95 865.62 1.15 0.06 1.09 865.63 1.29 0.06 1.23 865.64 1.43 0.06 1.37 865.65 1.58 0.06 1.52 865.66 1.74 0.06 1.67 865.67 1.90 0.06 1.83 865.68 2.06 0.06 2.00 865.69 2.23 0.06 2.17 865.70 2.40 0.06 2.34 865.71 2.58 0.06 2.52 865.72 2.76 0.06 2.70 865.73 2.95 0.06 2.89 865.74 3.14 0.06 3.08 865.75 3.33 0.06 3.27 865.76 3.53 0.06 3.47 865.77 3.73 0.06 3.67 865.78 3.94 0.06 3.88 865.79 4.15 0.06 4.09 865.80 4.36 0.06 4.30 865.81 4.58 0.06 4.52 865.82 4.80 0.06 4.74 865.83 5.02 0.06 4.96 865.84 5.25 0.06 5.19 865.85 5.48 0.06 5.42 865.86 5.71 0.06 5.65 865.87 5.95 0.06 5.89 865.88 6.19 0.06 6.13 865.89 6.44 0.06 6.37 865.90 6.68 0.06 6.62 865.91 6.93 0.06 6.87 865.92 7.18 0.06 7.12 865.93 7.44 0.06 7.38 865.94 7.70 0.06 7.64 865.95 7.96 0.06 7.90 865.96 8.05 0.06 7.99 865.97 8.06 0.06 8.00 865.98 8.07 0.06 8.00 865.99 8.08 0.06 8.01 866.00 8.09 0.06 8.02 Type II 24-hr 10-yr Rainfall=3.43"CU NCRE HYDROLOGY CD Printed 2/5/2019Prepared by Microsoft Page 34HydroCAD® 10.00-22 s/n 05659 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond FA: FILTER S1-A Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 865.00 2,400 0 865.01 2,404 24 865.02 2,408 48 865.03 2,412 72 865.04 2,416 96 865.05 2,420 120 865.06 2,424 145 865.07 2,428 169 865.08 2,432 193 865.09 2,436 218 865.10 2,440 242 865.11 2,444 266 865.12 2,448 291 865.13 2,452 315 865.14 2,456 340 865.15 2,460 364 865.16 2,464 389 865.17 2,468 414 865.18 2,472 438 865.19 2,476 463 865.20 2,480 488 865.21 2,484 513 865.22 2,488 538 865.23 2,492 563 865.24 2,496 588 865.25 2,500 613 865.26 2,504 638 865.27 2,508 663 865.28 2,512 688 865.29 2,516 713 865.30 2,520 738 865.31 2,524 763 865.32 2,528 788 865.33 2,532 814 865.34 2,536 839 865.35 2,540 865 865.36 2,544 890 865.37 2,548 915 865.38 2,552 941 865.39 2,556 966 865.40 2,560 992 865.41 2,564 1,018 865.42 2,568 1,043 865.43 2,572 1,069 865.44 2,576 1,095 865.45 2,580 1,121 865.46 2,584 1,146 865.47 2,588 1,172 865.48 2,592 1,198 865.49 2,596 1,224 865.50 2,600 1,250 865.51 2,604 1,276 865.52 2,608 1,302 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 865.53 2,612 1,328 865.54 2,616 1,354 865.55 2,620 1,380 865.56 2,624 1,407 865.57 2,628 1,433 865.58 2,632 1,459 865.59 2,636 1,486 865.60 2,640 1,512 865.61 2,644 1,538 865.62 2,648 1,565 865.63 2,652 1,591 865.64 2,656 1,618 865.65 2,660 1,644 865.66 2,664 1,671 865.67 2,668 1,698 865.68 2,672 1,724 865.69 2,676 1,751 865.70 2,680 1,778 865.71 2,684 1,805 865.72 2,688 1,832 865.73 2,692 1,859 865.74 2,696 1,886 865.75 2,700 1,913 865.76 2,704 1,940 865.77 2,708 1,967 865.78 2,712 1,994 865.79 2,716 2,021 865.80 2,720 2,048 865.81 2,724 2,075 865.82 2,728 2,102 865.83 2,732 2,130 865.84 2,736 2,157 865.85 2,740 2,185 865.86 2,744 2,212 865.87 2,748 2,239 865.88 2,752 2,267 865.89 2,756 2,294 865.90 2,760 2,322 865.91 2,764 2,350 865.92 2,768 2,377 865.93 2,772 2,405 865.94 2,776 2,433 865.95 2,780 2,461 865.96 2,784 2,488 865.97 2,788 2,516 865.98 2,792 2,544 865.99 2,796 2,572 866.00 2,800 2,600 Type II 24-hr 10-yr Rainfall=3.43"CU NCRE HYDROLOGY CD Printed 2/5/2019Prepared by Microsoft Page 35HydroCAD® 10.00-22 s/n 05659 © 2018 HydroCAD Software Solutions LLC Summary for Pond FE: FILTER S1-E Inflow Area = 0.517 ac, 55.51% Impervious, Inflow Depth > 1.97" for 10-yr event Inflow = 1.99 cfs @ 11.96 hrs, Volume= 0.085 af Outflow = 1.33 cfs @ 12.02 hrs, Volume= 0.069 af, Atten= 33%, Lag= 3.8 min Discarded = 0.05 cfs @ 12.02 hrs, Volume= 0.041 af Primary = 1.27 cfs @ 12.02 hrs, Volume= 0.028 af Routing by Stor-Ind method, Time Span= 0.00-20.00 hrs, dt= 0.01 hrs Peak Elev= 851.63' @ 12.02 hrs Surf.Area= 2,293 sf Storage= 1,312 cf Plug-Flow detention time= 112.1 min calculated for 0.069 af (82% of inflow) Center-of-Mass det. time= 59.8 min ( 833.3 - 773.4 ) Volume Invert Avail.Storage Storage Description #1 851.00' 5,125 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 851.00 1,850 0 0 852.00 2,550 2,200 2,200 853.00 3,300 2,925 5,125 Device Routing Invert Outlet Devices #1 Primary 847.00'8.0" Round Culvert L= 220.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 847.00' / 843.50' S= 0.0159 '/' Cc= 0.900 n= 0.010, Flow Area= 0.35 sf #2 Device 1 851.50'8.0' long Sharp-Crested Rectangular Weir 2 End Contraction(s) #3 Discarded 851.00'1.000 in/hr Exfiltration over Surface area Conductivity to Groundwater Elevation = 0.00' Discarded OutFlow Max=0.05 cfs @ 12.02 hrs HW=851.63' (Free Discharge) 3=Exfiltration ( Controls 0.05 cfs) Primary OutFlow Max=1.27 cfs @ 12.02 hrs HW=851.63' TW=846.00' (Fixed TW Elev= 846.00') 1=Culvert (Passes 1.27 cfs of 2.28 cfs potential flow) 2=Sharp-Crested Rectangular Weir (Weir Controls 1.27 cfs @ 1.19 fps) Type II 24-hr 10-yr Rainfall=3.43"CU NCRE HYDROLOGY CD Printed 2/5/2019Prepared by Microsoft Page 36HydroCAD® 10.00-22 s/n 05659 © 2018 HydroCAD Software Solutions LLC Stage-Discharge for Pond FE: FILTER S1-E Elevation (feet) Discharge (cfs) Discarded (cfs) Primary (cfs) 851.00 0.00 0.00 0.00 851.02 0.04 0.04 0.00 851.04 0.04 0.04 0.00 851.06 0.04 0.04 0.00 851.08 0.04 0.04 0.00 851.10 0.04 0.04 0.00 851.12 0.04 0.04 0.00 851.14 0.05 0.05 0.00 851.16 0.05 0.05 0.00 851.18 0.05 0.05 0.00 851.20 0.05 0.05 0.00 851.22 0.05 0.05 0.00 851.24 0.05 0.05 0.00 851.26 0.05 0.05 0.00 851.28 0.05 0.05 0.00 851.30 0.05 0.05 0.00 851.32 0.05 0.05 0.00 851.34 0.05 0.05 0.00 851.36 0.05 0.05 0.00 851.38 0.05 0.05 0.00 851.40 0.05 0.05 0.00 851.42 0.05 0.05 0.00 851.44 0.05 0.05 0.00 851.46 0.05 0.05 0.00 851.48 0.05 0.05 0.00 851.50 0.05 0.05 0.00 851.52 0.13 0.05 0.07 851.54 0.26 0.05 0.21 851.56 0.44 0.05 0.38 851.58 0.64 0.05 0.59 851.60 0.88 0.05 0.83 851.62 1.14 0.05 1.08 851.64 1.42 0.05 1.37 851.66 1.72 0.05 1.67 851.68 2.04 0.05 1.99 851.70 2.35 0.05 2.29 851.72 2.35 0.05 2.30 851.74 2.35 0.05 2.30 851.76 2.36 0.06 2.30 851.78 2.36 0.06 2.31 851.80 2.37 0.06 2.31 851.82 2.37 0.06 2.32 851.84 2.38 0.06 2.32 851.86 2.38 0.06 2.32 851.88 2.38 0.06 2.33 851.90 2.39 0.06 2.33 851.92 2.39 0.06 2.34 851.94 2.40 0.06 2.34 851.96 2.40 0.06 2.34 851.98 2.41 0.06 2.35 852.00 2.41 0.06 2.35 852.02 2.41 0.06 2.36 852.04 2.42 0.06 2.36 Elevation (feet) Discharge (cfs) Discarded (cfs) Primary (cfs) 852.06 2.42 0.06 2.36 852.08 2.43 0.06 2.37 852.10 2.43 0.06 2.37 852.12 2.44 0.06 2.37 852.14 2.44 0.06 2.38 852.16 2.44 0.06 2.38 852.18 2.45 0.06 2.39 852.20 2.45 0.06 2.39 852.22 2.46 0.06 2.39 852.24 2.46 0.06 2.40 852.26 2.47 0.06 2.40 852.28 2.47 0.06 2.41 852.30 2.47 0.06 2.41 852.32 2.48 0.06 2.41 852.34 2.48 0.07 2.42 852.36 2.49 0.07 2.42 852.38 2.49 0.07 2.42 852.40 2.49 0.07 2.43 852.42 2.50 0.07 2.43 852.44 2.50 0.07 2.44 852.46 2.51 0.07 2.44 852.48 2.51 0.07 2.44 852.50 2.51 0.07 2.45 852.52 2.52 0.07 2.45 852.54 2.52 0.07 2.45 852.56 2.53 0.07 2.46 852.58 2.53 0.07 2.46 852.60 2.54 0.07 2.47 852.62 2.54 0.07 2.47 852.64 2.54 0.07 2.47 852.66 2.55 0.07 2.48 852.68 2.55 0.07 2.48 852.70 2.56 0.07 2.48 852.72 2.56 0.07 2.49 852.74 2.56 0.07 2.49 852.76 2.57 0.07 2.50 852.78 2.57 0.07 2.50 852.80 2.58 0.07 2.50 852.82 2.58 0.07 2.51 852.84 2.58 0.07 2.51 852.86 2.59 0.07 2.51 852.88 2.59 0.07 2.52 852.90 2.60 0.07 2.52 852.92 2.60 0.08 2.52 852.94 2.60 0.08 2.53 852.96 2.61 0.08 2.53 852.98 2.61 0.08 2.54 853.00 2.62 0.08 2.54 Type II 24-hr 10-yr Rainfall=3.43"CU NCRE HYDROLOGY CD Printed 2/5/2019Prepared by Microsoft Page 37HydroCAD® 10.00-22 s/n 05659 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond FE: FILTER S1-E Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 851.00 1,850 0 851.02 1,864 37 851.04 1,878 75 851.06 1,892 112 851.08 1,906 150 851.10 1,920 189 851.12 1,934 227 851.14 1,948 266 851.16 1,962 305 851.18 1,976 344 851.20 1,990 384 851.22 2,004 424 851.24 2,018 464 851.26 2,032 505 851.28 2,046 545 851.30 2,060 586 851.32 2,074 628 851.34 2,088 669 851.36 2,102 711 851.38 2,116 754 851.40 2,130 796 851.42 2,144 839 851.44 2,158 882 851.46 2,172 925 851.48 2,186 969 851.50 2,200 1,013 851.52 2,214 1,057 851.54 2,228 1,101 851.56 2,242 1,146 851.58 2,256 1,191 851.60 2,270 1,236 851.62 2,284 1,282 851.64 2,298 1,327 851.66 2,312 1,373 851.68 2,326 1,420 851.70 2,340 1,467 851.72 2,354 1,513 851.74 2,368 1,561 851.76 2,382 1,608 851.78 2,396 1,656 851.80 2,410 1,704 851.82 2,424 1,752 851.84 2,438 1,801 851.86 2,452 1,850 851.88 2,466 1,899 851.90 2,480 1,948 851.92 2,494 1,998 851.94 2,508 2,048 851.96 2,522 2,099 851.98 2,536 2,149 852.00 2,550 2,200 852.02 2,565 2,251 852.04 2,580 2,303 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 852.06 2,595 2,354 852.08 2,610 2,406 852.10 2,625 2,459 852.12 2,640 2,511 852.14 2,655 2,564 852.16 2,670 2,618 852.18 2,685 2,671 852.20 2,700 2,725 852.22 2,715 2,779 852.24 2,730 2,834 852.26 2,745 2,888 852.28 2,760 2,943 852.30 2,775 2,999 852.32 2,790 3,054 852.34 2,805 3,110 852.36 2,820 3,167 852.38 2,835 3,223 852.40 2,850 3,280 852.42 2,865 3,337 852.44 2,880 3,395 852.46 2,895 3,452 852.48 2,910 3,510 852.50 2,925 3,569 852.52 2,940 3,627 852.54 2,955 3,686 852.56 2,970 3,746 852.58 2,985 3,805 852.60 3,000 3,865 852.62 3,015 3,925 852.64 3,030 3,986 852.66 3,045 4,046 852.68 3,060 4,107 852.70 3,075 4,169 852.72 3,090 4,230 852.74 3,105 4,292 852.76 3,120 4,355 852.78 3,135 4,417 852.80 3,150 4,480 852.82 3,165 4,543 852.84 3,180 4,607 852.86 3,195 4,670 852.88 3,210 4,734 852.90 3,225 4,799 852.92 3,240 4,863 852.94 3,255 4,928 852.96 3,270 4,994 852.98 3,285 5,059 853.00 3,300 5,125 Type II 24-hr 10-yr Rainfall=3.43"CU NCRE HYDROLOGY CD Printed 2/5/2019Prepared by Microsoft Page 38HydroCAD® 10.00-22 s/n 05659 © 2018 HydroCAD Software Solutions LLC Summary for Link S1PC: SUBAREA 1 PROPOSED Inflow Area = 6.400 ac, 55.00% Impervious, Inflow Depth > 1.83" for 10-yr event Inflow = 16.39 cfs @ 12.08 hrs, Volume= 0.978 af Primary = 16.39 cfs @ 12.08 hrs, Volume= 0.978 af, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow, Time Span= 0.00-20.00 hrs, dt= 0.01 hrs Type II 24-hr 10-yr Rainfall=3.43"CU NCRE HYDROLOGY CD Printed 2/5/2019Prepared by Microsoft Page 39HydroCAD® 10.00-22 s/n 05659 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment S1T: TO FILTER A Runoff = 4.02 cfs @ 12.01 hrs, Volume= 0.207 af, Depth> 2.14" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-20.00 hrs, dt= 0.01 hrs Type II 24-hr 10-yr Rainfall=3.43" Area (ac) CN Description * 0.425 74 Lawn, Landscape * 0.739 98 Paved, roof 1.164 89 Weighted Average 0.425 36.51% Pervious Area 0.739 63.49% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, TO FILTER Type II 24-hr 10-yr Rainfall=3.43"CU NCRE HYDROLOGY CD Printed 2/5/2019Prepared by Microsoft Page 40HydroCAD® 10.00-22 s/n 05659 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment S1U: SUBAREA 1 P-UNTREATED Runoff = 13.08 cfs @ 12.10 hrs, Volume= 0.856 af, Depth> 1.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-20.00 hrs, dt= 0.01 hrs Type II 24-hr 10-yr Rainfall=3.43" Area (ac) CN Description * 2.455 74 Lawn, Landscape * 2.781 98 Paved, roof 5.236 87 Weighted Average 2.455 46.89% Pervious Area 2.781 53.11% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 14.2 100 0.0300 0.12 Sheet Flow, A-B Grass: Dense n= 0.240 P2= 2.34" 0.6 150 0.0600 3.94 Shallow Concentrated Flow, B-C Unpaved Kv= 16.1 fps 0.7 140 0.0250 3.21 Shallow Concentrated Flow, C-D Paved Kv= 20.3 fps 2.5 420 0.0300 2.84 0.24 Pipe Channel, D-E 12.0" Round w/ 10.0" inside fill Area= 0.1 sf Perim= 1.6' r= 0.05' n= 0.013 18.0 810 Total Type II 24-hr 10-yr Rainfall=3.43"CU NCRE HYDROLOGY CD Printed 2/5/2019Prepared by Microsoft Page 41HydroCAD® 10.00-22 s/n 05659 © 2018 HydroCAD Software Solutions LLC Summary for Link S2PC: SUBAREA 2 PROPOSED Inflow Area = 3.200 ac, 45.31% Impervious, Inflow Depth > 1.55" for 10-yr event Inflow = 6.89 cfs @ 12.07 hrs, Volume= 0.414 af Primary = 6.89 cfs @ 12.07 hrs, Volume= 0.414 af, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow, Time Span= 0.00-20.00 hrs, dt= 0.01 hrs Type II 24-hr 10-yr Rainfall=3.43"CU NCRE HYDROLOGY CD Printed 2/5/2019Prepared by Microsoft Page 42HydroCAD® 10.00-22 s/n 05659 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment S2T: TO FILTER S1-E Runoff = 1.99 cfs @ 11.96 hrs, Volume= 0.085 af, Depth> 1.97" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-20.00 hrs, dt= 0.01 hrs Type II 24-hr 10-yr Rainfall=3.43" Area (ac) CN Description * 0.230 74 Lawn, Landscaped * 0.287 98 Paved, Roof 0.517 87 Weighted Average 0.230 44.49% Pervious Area 0.287 55.51% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, TO FILTER BASIN Type II 24-hr 10-yr Rainfall=3.43"CU NCRE HYDROLOGY CD Printed 2/5/2019Prepared by Microsoft Page 43HydroCAD® 10.00-22 s/n 05659 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment S2U: SUBAREA 2P UNTREATED Runoff = 6.03 cfs @ 12.10 hrs, Volume= 0.386 af, Depth> 1.73" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-20.00 hrs, dt= 0.01 hrs Type II 24-hr 10-yr Rainfall=3.43" Area (ac) CN Description * 1.520 74 Lawn, Landscaped * 1.163 98 Paved, Roof 2.683 84 Weighted Average 1.520 56.65% Pervious Area 1.163 43.35% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 14.2 100 0.0300 0.12 Sheet Flow, A-B Grass: Dense n= 0.240 P2= 2.34" 0.9 230 0.0650 4.10 Shallow Concentrated Flow, B-C Unpaved Kv= 16.1 fps 2.4 360 0.0600 2.54 0.06 Pipe Channel, C-D 8.0" Round w/ 7.0" inside fill Area= 0.0 sf Perim= 0.9' r= 0.03' n= 0.013 17.5 690 Total Type II 24-hr 25-yr Rainfall=4.26"CU NCRE HYDROLOGY CD Printed 2/5/2019Prepared by Microsoft Page 46HydroCAD® 10.00-22 s/n 05659 © 2018 HydroCAD Software Solutions LLC Summary for Link 5L: VCH-ROUTED Inflow Area = 9.600 ac, 51.77% Impervious, Inflow Depth > 2.43" for 25-yr event Inflow = 31.60 cfs @ 12.08 hrs, Volume= 1.944 af Primary = 31.60 cfs @ 12.08 hrs, Volume= 1.944 af, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow, Time Span= 0.00-20.00 hrs, dt= 0.01 hrs Type II 24-hr 25-yr Rainfall=4.26"CU NCRE HYDROLOGY CD Printed 2/5/2019Prepared by Microsoft Page 47HydroCAD® 10.00-22 s/n 05659 © 2018 HydroCAD Software Solutions LLC Summary for Pond FA: FILTER S1-A Inflow Area = 1.164 ac, 63.49% Impervious, Inflow Depth > 2.87" for 25-yr event Inflow = 5.31 cfs @ 12.01 hrs, Volume= 0.278 af Outflow = 5.04 cfs @ 12.04 hrs, Volume= 0.249 af, Atten= 5%, Lag= 1.8 min Discarded = 0.06 cfs @ 12.04 hrs, Volume= 0.061 af Primary = 4.98 cfs @ 12.04 hrs, Volume= 0.188 af Routing by Stor-Ind method, Time Span= 0.00-20.00 hrs, dt= 0.01 hrs Peak Elev= 865.83' @ 12.04 hrs Surf.Area= 2,732 sf Storage= 2,132 cf Plug-Flow detention time= 50.1 min calculated for 0.249 af (90% of inflow) Center-of-Mass det. time= 15.0 min ( 779.3 - 764.3 ) Volume Invert Avail.Storage Storage Description #1 865.00' 2,600 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 865.00 2,400 0 0 866.00 2,800 2,600 2,600 Device Routing Invert Outlet Devices #1 Primary 861.00'12.0" Round Culvert L= 30.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 861.00' / 860.00' S= 0.0333 '/' Cc= 0.900 n= 0.010, Flow Area= 0.79 sf #2 Device 1 865.50'8.0' long Sharp-Crested Rectangular Weir 0 End Contraction(s) #3 Discarded 865.00'1.000 in/hr Exfiltration over Surface area Conductivity to Groundwater Elevation = 0.00' Discarded OutFlow Max=0.06 cfs @ 12.04 hrs HW=865.83' (Free Discharge) 3=Exfiltration ( Controls 0.06 cfs) Primary OutFlow Max=4.98 cfs @ 12.04 hrs HW=865.83' TW=857.00' (Fixed TW Elev= 857.00') 1=Culvert (Passes 4.98 cfs of 7.87 cfs potential flow) 2=Sharp-Crested Rectangular Weir (Weir Controls 4.98 cfs @ 1.88 fps) Type II 24-hr 25-yr Rainfall=4.26"CU NCRE HYDROLOGY CD Printed 2/5/2019Prepared by Microsoft Page 48HydroCAD® 10.00-22 s/n 05659 © 2018 HydroCAD Software Solutions LLC Stage-Discharge for Pond FA: FILTER S1-A Elevation (feet) Discharge (cfs) Discarded (cfs) Primary (cfs) 865.00 0.00 0.00 0.00 865.01 0.06 0.06 0.00 865.02 0.06 0.06 0.00 865.03 0.06 0.06 0.00 865.04 0.06 0.06 0.00 865.05 0.06 0.06 0.00 865.06 0.06 0.06 0.00 865.07 0.06 0.06 0.00 865.08 0.06 0.06 0.00 865.09 0.06 0.06 0.00 865.10 0.06 0.06 0.00 865.11 0.06 0.06 0.00 865.12 0.06 0.06 0.00 865.13 0.06 0.06 0.00 865.14 0.06 0.06 0.00 865.15 0.06 0.06 0.00 865.16 0.06 0.06 0.00 865.17 0.06 0.06 0.00 865.18 0.06 0.06 0.00 865.19 0.06 0.06 0.00 865.20 0.06 0.06 0.00 865.21 0.06 0.06 0.00 865.22 0.06 0.06 0.00 865.23 0.06 0.06 0.00 865.24 0.06 0.06 0.00 865.25 0.06 0.06 0.00 865.26 0.06 0.06 0.00 865.27 0.06 0.06 0.00 865.28 0.06 0.06 0.00 865.29 0.06 0.06 0.00 865.30 0.06 0.06 0.00 865.31 0.06 0.06 0.00 865.32 0.06 0.06 0.00 865.33 0.06 0.06 0.00 865.34 0.06 0.06 0.00 865.35 0.06 0.06 0.00 865.36 0.06 0.06 0.00 865.37 0.06 0.06 0.00 865.38 0.06 0.06 0.00 865.39 0.06 0.06 0.00 865.40 0.06 0.06 0.00 865.41 0.06 0.06 0.00 865.42 0.06 0.06 0.00 865.43 0.06 0.06 0.00 865.44 0.06 0.06 0.00 865.45 0.06 0.06 0.00 865.46 0.06 0.06 0.00 865.47 0.06 0.06 0.00 865.48 0.06 0.06 0.00 865.49 0.06 0.06 0.00 865.50 0.06 0.06 0.00 865.51 0.09 0.06 0.03 865.52 0.13 0.06 0.07 Elevation (feet) Discharge (cfs) Discarded (cfs) Primary (cfs) 865.53 0.20 0.06 0.14 865.54 0.27 0.06 0.21 865.55 0.35 0.06 0.29 865.56 0.45 0.06 0.38 865.57 0.55 0.06 0.48 865.58 0.65 0.06 0.59 865.59 0.77 0.06 0.71 865.60 0.89 0.06 0.83 865.61 1.02 0.06 0.95 865.62 1.15 0.06 1.09 865.63 1.29 0.06 1.23 865.64 1.43 0.06 1.37 865.65 1.58 0.06 1.52 865.66 1.74 0.06 1.67 865.67 1.90 0.06 1.83 865.68 2.06 0.06 2.00 865.69 2.23 0.06 2.17 865.70 2.40 0.06 2.34 865.71 2.58 0.06 2.52 865.72 2.76 0.06 2.70 865.73 2.95 0.06 2.89 865.74 3.14 0.06 3.08 865.75 3.33 0.06 3.27 865.76 3.53 0.06 3.47 865.77 3.73 0.06 3.67 865.78 3.94 0.06 3.88 865.79 4.15 0.06 4.09 865.80 4.36 0.06 4.30 865.81 4.58 0.06 4.52 865.82 4.80 0.06 4.74 865.83 5.02 0.06 4.96 865.84 5.25 0.06 5.19 865.85 5.48 0.06 5.42 865.86 5.71 0.06 5.65 865.87 5.95 0.06 5.89 865.88 6.19 0.06 6.13 865.89 6.44 0.06 6.37 865.90 6.68 0.06 6.62 865.91 6.93 0.06 6.87 865.92 7.18 0.06 7.12 865.93 7.44 0.06 7.38 865.94 7.70 0.06 7.64 865.95 7.96 0.06 7.90 865.96 8.05 0.06 7.99 865.97 8.06 0.06 8.00 865.98 8.07 0.06 8.00 865.99 8.08 0.06 8.01 866.00 8.09 0.06 8.02 Type II 24-hr 25-yr Rainfall=4.26"CU NCRE HYDROLOGY CD Printed 2/5/2019Prepared by Microsoft Page 49HydroCAD® 10.00-22 s/n 05659 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond FA: FILTER S1-A Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 865.00 2,400 0 865.01 2,404 24 865.02 2,408 48 865.03 2,412 72 865.04 2,416 96 865.05 2,420 120 865.06 2,424 145 865.07 2,428 169 865.08 2,432 193 865.09 2,436 218 865.10 2,440 242 865.11 2,444 266 865.12 2,448 291 865.13 2,452 315 865.14 2,456 340 865.15 2,460 364 865.16 2,464 389 865.17 2,468 414 865.18 2,472 438 865.19 2,476 463 865.20 2,480 488 865.21 2,484 513 865.22 2,488 538 865.23 2,492 563 865.24 2,496 588 865.25 2,500 613 865.26 2,504 638 865.27 2,508 663 865.28 2,512 688 865.29 2,516 713 865.30 2,520 738 865.31 2,524 763 865.32 2,528 788 865.33 2,532 814 865.34 2,536 839 865.35 2,540 865 865.36 2,544 890 865.37 2,548 915 865.38 2,552 941 865.39 2,556 966 865.40 2,560 992 865.41 2,564 1,018 865.42 2,568 1,043 865.43 2,572 1,069 865.44 2,576 1,095 865.45 2,580 1,121 865.46 2,584 1,146 865.47 2,588 1,172 865.48 2,592 1,198 865.49 2,596 1,224 865.50 2,600 1,250 865.51 2,604 1,276 865.52 2,608 1,302 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 865.53 2,612 1,328 865.54 2,616 1,354 865.55 2,620 1,380 865.56 2,624 1,407 865.57 2,628 1,433 865.58 2,632 1,459 865.59 2,636 1,486 865.60 2,640 1,512 865.61 2,644 1,538 865.62 2,648 1,565 865.63 2,652 1,591 865.64 2,656 1,618 865.65 2,660 1,644 865.66 2,664 1,671 865.67 2,668 1,698 865.68 2,672 1,724 865.69 2,676 1,751 865.70 2,680 1,778 865.71 2,684 1,805 865.72 2,688 1,832 865.73 2,692 1,859 865.74 2,696 1,886 865.75 2,700 1,913 865.76 2,704 1,940 865.77 2,708 1,967 865.78 2,712 1,994 865.79 2,716 2,021 865.80 2,720 2,048 865.81 2,724 2,075 865.82 2,728 2,102 865.83 2,732 2,130 865.84 2,736 2,157 865.85 2,740 2,185 865.86 2,744 2,212 865.87 2,748 2,239 865.88 2,752 2,267 865.89 2,756 2,294 865.90 2,760 2,322 865.91 2,764 2,350 865.92 2,768 2,377 865.93 2,772 2,405 865.94 2,776 2,433 865.95 2,780 2,461 865.96 2,784 2,488 865.97 2,788 2,516 865.98 2,792 2,544 865.99 2,796 2,572 866.00 2,800 2,600 Type II 24-hr 25-yr Rainfall=4.26"CU NCRE HYDROLOGY CD Printed 2/5/2019Prepared by Microsoft Page 50HydroCAD® 10.00-22 s/n 05659 © 2018 HydroCAD Software Solutions LLC Summary for Pond FE: FILTER S1-E Inflow Area = 0.517 ac, 55.51% Impervious, Inflow Depth > 2.68" for 25-yr event Inflow = 2.66 cfs @ 11.96 hrs, Volume= 0.116 af Outflow = 2.28 cfs @ 12.00 hrs, Volume= 0.097 af, Atten= 14%, Lag= 2.3 min Discarded = 0.05 cfs @ 12.00 hrs, Volume= 0.045 af Primary = 2.23 cfs @ 12.00 hrs, Volume= 0.052 af Routing by Stor-Ind method, Time Span= 0.00-20.00 hrs, dt= 0.01 hrs Peak Elev= 851.70' @ 12.00 hrs Surf.Area= 2,337 sf Storage= 1,456 cf Plug-Flow detention time= 84.2 min calculated for 0.097 af (84% of inflow) Center-of-Mass det. time= 36.0 min ( 802.4 - 766.3 ) Volume Invert Avail.Storage Storage Description #1 851.00' 5,125 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 851.00 1,850 0 0 852.00 2,550 2,200 2,200 853.00 3,300 2,925 5,125 Device Routing Invert Outlet Devices #1 Primary 847.00'8.0" Round Culvert L= 220.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 847.00' / 843.50' S= 0.0159 '/' Cc= 0.900 n= 0.010, Flow Area= 0.35 sf #2 Device 1 851.50'8.0' long Sharp-Crested Rectangular Weir 2 End Contraction(s) #3 Discarded 851.00'1.000 in/hr Exfiltration over Surface area Conductivity to Groundwater Elevation = 0.00' Discarded OutFlow Max=0.05 cfs @ 12.00 hrs HW=851.70' (Free Discharge) 3=Exfiltration ( Controls 0.05 cfs) Primary OutFlow Max=2.25 cfs @ 12.00 hrs HW=851.70' TW=846.00' (Fixed TW Elev= 846.00') 1=Culvert (Passes 2.25 cfs of 2.29 cfs potential flow) 2=Sharp-Crested Rectangular Weir (Weir Controls 2.25 cfs @ 1.45 fps) Type II 24-hr 25-yr Rainfall=4.26"CU NCRE HYDROLOGY CD Printed 2/5/2019Prepared by Microsoft Page 51HydroCAD® 10.00-22 s/n 05659 © 2018 HydroCAD Software Solutions LLC Stage-Discharge for Pond FE: FILTER S1-E Elevation (feet) Discharge (cfs) Discarded (cfs) Primary (cfs) 851.00 0.00 0.00 0.00 851.02 0.04 0.04 0.00 851.04 0.04 0.04 0.00 851.06 0.04 0.04 0.00 851.08 0.04 0.04 0.00 851.10 0.04 0.04 0.00 851.12 0.04 0.04 0.00 851.14 0.05 0.05 0.00 851.16 0.05 0.05 0.00 851.18 0.05 0.05 0.00 851.20 0.05 0.05 0.00 851.22 0.05 0.05 0.00 851.24 0.05 0.05 0.00 851.26 0.05 0.05 0.00 851.28 0.05 0.05 0.00 851.30 0.05 0.05 0.00 851.32 0.05 0.05 0.00 851.34 0.05 0.05 0.00 851.36 0.05 0.05 0.00 851.38 0.05 0.05 0.00 851.40 0.05 0.05 0.00 851.42 0.05 0.05 0.00 851.44 0.05 0.05 0.00 851.46 0.05 0.05 0.00 851.48 0.05 0.05 0.00 851.50 0.05 0.05 0.00 851.52 0.13 0.05 0.07 851.54 0.26 0.05 0.21 851.56 0.44 0.05 0.38 851.58 0.64 0.05 0.59 851.60 0.88 0.05 0.83 851.62 1.14 0.05 1.08 851.64 1.42 0.05 1.37 851.66 1.72 0.05 1.67 851.68 2.04 0.05 1.99 851.70 2.35 0.05 2.29 851.72 2.35 0.05 2.30 851.74 2.35 0.05 2.30 851.76 2.36 0.06 2.30 851.78 2.36 0.06 2.31 851.80 2.37 0.06 2.31 851.82 2.37 0.06 2.32 851.84 2.38 0.06 2.32 851.86 2.38 0.06 2.32 851.88 2.38 0.06 2.33 851.90 2.39 0.06 2.33 851.92 2.39 0.06 2.34 851.94 2.40 0.06 2.34 851.96 2.40 0.06 2.34 851.98 2.41 0.06 2.35 852.00 2.41 0.06 2.35 852.02 2.41 0.06 2.36 852.04 2.42 0.06 2.36 Elevation (feet) Discharge (cfs) Discarded (cfs) Primary (cfs) 852.06 2.42 0.06 2.36 852.08 2.43 0.06 2.37 852.10 2.43 0.06 2.37 852.12 2.44 0.06 2.37 852.14 2.44 0.06 2.38 852.16 2.44 0.06 2.38 852.18 2.45 0.06 2.39 852.20 2.45 0.06 2.39 852.22 2.46 0.06 2.39 852.24 2.46 0.06 2.40 852.26 2.47 0.06 2.40 852.28 2.47 0.06 2.41 852.30 2.47 0.06 2.41 852.32 2.48 0.06 2.41 852.34 2.48 0.07 2.42 852.36 2.49 0.07 2.42 852.38 2.49 0.07 2.42 852.40 2.49 0.07 2.43 852.42 2.50 0.07 2.43 852.44 2.50 0.07 2.44 852.46 2.51 0.07 2.44 852.48 2.51 0.07 2.44 852.50 2.51 0.07 2.45 852.52 2.52 0.07 2.45 852.54 2.52 0.07 2.45 852.56 2.53 0.07 2.46 852.58 2.53 0.07 2.46 852.60 2.54 0.07 2.47 852.62 2.54 0.07 2.47 852.64 2.54 0.07 2.47 852.66 2.55 0.07 2.48 852.68 2.55 0.07 2.48 852.70 2.56 0.07 2.48 852.72 2.56 0.07 2.49 852.74 2.56 0.07 2.49 852.76 2.57 0.07 2.50 852.78 2.57 0.07 2.50 852.80 2.58 0.07 2.50 852.82 2.58 0.07 2.51 852.84 2.58 0.07 2.51 852.86 2.59 0.07 2.51 852.88 2.59 0.07 2.52 852.90 2.60 0.07 2.52 852.92 2.60 0.08 2.52 852.94 2.60 0.08 2.53 852.96 2.61 0.08 2.53 852.98 2.61 0.08 2.54 853.00 2.62 0.08 2.54 Type II 24-hr 25-yr Rainfall=4.26"CU NCRE HYDROLOGY CD Printed 2/5/2019Prepared by Microsoft Page 52HydroCAD® 10.00-22 s/n 05659 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond FE: FILTER S1-E Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 851.00 1,850 0 851.02 1,864 37 851.04 1,878 75 851.06 1,892 112 851.08 1,906 150 851.10 1,920 189 851.12 1,934 227 851.14 1,948 266 851.16 1,962 305 851.18 1,976 344 851.20 1,990 384 851.22 2,004 424 851.24 2,018 464 851.26 2,032 505 851.28 2,046 545 851.30 2,060 586 851.32 2,074 628 851.34 2,088 669 851.36 2,102 711 851.38 2,116 754 851.40 2,130 796 851.42 2,144 839 851.44 2,158 882 851.46 2,172 925 851.48 2,186 969 851.50 2,200 1,013 851.52 2,214 1,057 851.54 2,228 1,101 851.56 2,242 1,146 851.58 2,256 1,191 851.60 2,270 1,236 851.62 2,284 1,282 851.64 2,298 1,327 851.66 2,312 1,373 851.68 2,326 1,420 851.70 2,340 1,467 851.72 2,354 1,513 851.74 2,368 1,561 851.76 2,382 1,608 851.78 2,396 1,656 851.80 2,410 1,704 851.82 2,424 1,752 851.84 2,438 1,801 851.86 2,452 1,850 851.88 2,466 1,899 851.90 2,480 1,948 851.92 2,494 1,998 851.94 2,508 2,048 851.96 2,522 2,099 851.98 2,536 2,149 852.00 2,550 2,200 852.02 2,565 2,251 852.04 2,580 2,303 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 852.06 2,595 2,354 852.08 2,610 2,406 852.10 2,625 2,459 852.12 2,640 2,511 852.14 2,655 2,564 852.16 2,670 2,618 852.18 2,685 2,671 852.20 2,700 2,725 852.22 2,715 2,779 852.24 2,730 2,834 852.26 2,745 2,888 852.28 2,760 2,943 852.30 2,775 2,999 852.32 2,790 3,054 852.34 2,805 3,110 852.36 2,820 3,167 852.38 2,835 3,223 852.40 2,850 3,280 852.42 2,865 3,337 852.44 2,880 3,395 852.46 2,895 3,452 852.48 2,910 3,510 852.50 2,925 3,569 852.52 2,940 3,627 852.54 2,955 3,686 852.56 2,970 3,746 852.58 2,985 3,805 852.60 3,000 3,865 852.62 3,015 3,925 852.64 3,030 3,986 852.66 3,045 4,046 852.68 3,060 4,107 852.70 3,075 4,169 852.72 3,090 4,230 852.74 3,105 4,292 852.76 3,120 4,355 852.78 3,135 4,417 852.80 3,150 4,480 852.82 3,165 4,543 852.84 3,180 4,607 852.86 3,195 4,670 852.88 3,210 4,734 852.90 3,225 4,799 852.92 3,240 4,863 852.94 3,255 4,928 852.96 3,270 4,994 852.98 3,285 5,059 853.00 3,300 5,125 Type II 24-hr 25-yr Rainfall=4.26"CU NCRE HYDROLOGY CD Printed 2/5/2019Prepared by Microsoft Page 53HydroCAD® 10.00-22 s/n 05659 © 2018 HydroCAD Software Solutions LLC Summary for Link S1PC: SUBAREA 1 PROPOSED Inflow Area = 6.400 ac, 55.00% Impervious, Inflow Depth > 2.54" for 25-yr event Inflow = 22.03 cfs @ 12.08 hrs, Volume= 1.354 af Primary = 22.03 cfs @ 12.08 hrs, Volume= 1.354 af, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow, Time Span= 0.00-20.00 hrs, dt= 0.01 hrs Type II 24-hr 25-yr Rainfall=4.26"CU NCRE HYDROLOGY CD Printed 2/5/2019Prepared by Microsoft Page 54HydroCAD® 10.00-22 s/n 05659 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment S1T: TO FILTER A Runoff = 5.31 cfs @ 12.01 hrs, Volume= 0.278 af, Depth> 2.87" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-20.00 hrs, dt= 0.01 hrs Type II 24-hr 25-yr Rainfall=4.26" Area (ac) CN Description * 0.425 74 Lawn, Landscape * 0.739 98 Paved, roof 1.164 89 Weighted Average 0.425 36.51% Pervious Area 0.739 63.49% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, TO FILTER Type II 24-hr 25-yr Rainfall=4.26"CU NCRE HYDROLOGY CD Printed 2/5/2019Prepared by Microsoft Page 55HydroCAD® 10.00-22 s/n 05659 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment S1U: SUBAREA 1 P-UNTREATED Runoff = 17.61 cfs @ 12.10 hrs, Volume= 1.166 af, Depth> 2.67" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-20.00 hrs, dt= 0.01 hrs Type II 24-hr 25-yr Rainfall=4.26" Area (ac) CN Description * 2.455 74 Lawn, Landscape * 2.781 98 Paved, roof 5.236 87 Weighted Average 2.455 46.89% Pervious Area 2.781 53.11% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 14.2 100 0.0300 0.12 Sheet Flow, A-B Grass: Dense n= 0.240 P2= 2.34" 0.6 150 0.0600 3.94 Shallow Concentrated Flow, B-C Unpaved Kv= 16.1 fps 0.7 140 0.0250 3.21 Shallow Concentrated Flow, C-D Paved Kv= 20.3 fps 2.5 420 0.0300 2.84 0.24 Pipe Channel, D-E 12.0" Round w/ 10.0" inside fill Area= 0.1 sf Perim= 1.6' r= 0.05' n= 0.013 18.0 810 Total Type II 24-hr 25-yr Rainfall=4.26"CU NCRE HYDROLOGY CD Printed 2/5/2019Prepared by Microsoft Page 56HydroCAD® 10.00-22 s/n 05659 © 2018 HydroCAD Software Solutions LLC Summary for Link S2PC: SUBAREA 2 PROPOSED Inflow Area = 3.200 ac, 45.31% Impervious, Inflow Depth > 2.21" for 25-yr event Inflow = 9.61 cfs @ 12.07 hrs, Volume= 0.590 af Primary = 9.61 cfs @ 12.07 hrs, Volume= 0.590 af, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow, Time Span= 0.00-20.00 hrs, dt= 0.01 hrs Type II 24-hr 25-yr Rainfall=4.26"CU NCRE HYDROLOGY CD Printed 2/5/2019Prepared by Microsoft Page 57HydroCAD® 10.00-22 s/n 05659 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment S2T: TO FILTER S1-E Runoff = 2.66 cfs @ 11.96 hrs, Volume= 0.116 af, Depth> 2.68" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-20.00 hrs, dt= 0.01 hrs Type II 24-hr 25-yr Rainfall=4.26" Area (ac) CN Description * 0.230 74 Lawn, Landscaped * 0.287 98 Paved, Roof 0.517 87 Weighted Average 0.230 44.49% Pervious Area 0.287 55.51% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, TO FILTER BASIN Type II 24-hr 25-yr Rainfall=4.26"CU NCRE HYDROLOGY CD Printed 2/5/2019Prepared by Microsoft Page 58HydroCAD® 10.00-22 s/n 05659 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment S2U: SUBAREA 2P UNTREATED Runoff = 8.33 cfs @ 12.10 hrs, Volume= 0.538 af, Depth> 2.41" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-20.00 hrs, dt= 0.01 hrs Type II 24-hr 25-yr Rainfall=4.26" Area (ac) CN Description * 1.520 74 Lawn, Landscaped * 1.163 98 Paved, Roof 2.683 84 Weighted Average 1.520 56.65% Pervious Area 1.163 43.35% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 14.2 100 0.0300 0.12 Sheet Flow, A-B Grass: Dense n= 0.240 P2= 2.34" 0.9 230 0.0650 4.10 Shallow Concentrated Flow, B-C Unpaved Kv= 16.1 fps 2.4 360 0.0600 2.54 0.06 Pipe Channel, C-D 8.0" Round w/ 7.0" inside fill Area= 0.0 sf Perim= 0.9' r= 0.03' n= 0.013 17.5 690 Total Type II 24-hr 100-yr Rainfall=5.93"CU NCRE HYDROLOGY CD Printed 2/5/2019Prepared by Microsoft Page 61HydroCAD® 10.00-22 s/n 05659 © 2018 HydroCAD Software Solutions LLC Summary for Link 5L: VCH-ROUTED Inflow Area = 9.600 ac, 51.77% Impervious, Inflow Depth > 3.88" for 100-yr event Inflow = 48.74 cfs @ 12.08 hrs, Volume= 3.107 af Primary = 48.74 cfs @ 12.08 hrs, Volume= 3.107 af, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow, Time Span= 0.00-20.00 hrs, dt= 0.01 hrs Type II 24-hr 100-yr Rainfall=5.93"CU NCRE HYDROLOGY CD Printed 2/5/2019Prepared by Microsoft Page 62HydroCAD® 10.00-22 s/n 05659 © 2018 HydroCAD Software Solutions LLC Summary for Pond FA: FILTER S1-A Inflow Area = 1.164 ac, 63.49% Impervious, Inflow Depth > 4.38" for 100-yr event Inflow = 7.89 cfs @ 12.01 hrs, Volume= 0.425 af Outflow = 7.58 cfs @ 12.04 hrs, Volume= 0.396 af, Atten= 4%, Lag= 1.6 min Discarded = 0.06 cfs @ 12.04 hrs, Volume= 0.070 af Primary = 7.51 cfs @ 12.04 hrs, Volume= 0.326 af Routing by Stor-Ind method, Time Span= 0.00-20.00 hrs, dt= 0.01 hrs Peak Elev= 865.94' @ 12.04 hrs Surf.Area= 2,774 sf Storage= 2,419 cf Plug-Flow detention time= 39.8 min calculated for 0.395 af (93% of inflow) Center-of-Mass det. time= 14.1 min ( 768.3 - 754.2 ) Volume Invert Avail.Storage Storage Description #1 865.00' 2,600 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 865.00 2,400 0 0 866.00 2,800 2,600 2,600 Device Routing Invert Outlet Devices #1 Primary 861.00'12.0" Round Culvert L= 30.0' RCP, square edge headwall, Ke= 0.500 Inlet / Outlet Invert= 861.00' / 860.00' S= 0.0333 '/' Cc= 0.900 n= 0.010, Flow Area= 0.79 sf #2 Device 1 865.50'8.0' long Sharp-Crested Rectangular Weir 0 End Contraction(s) #3 Discarded 865.00'1.000 in/hr Exfiltration over Surface area Conductivity to Groundwater Elevation = 0.00' Discarded OutFlow Max=0.06 cfs @ 12.04 hrs HW=865.93' (Free Discharge) 3=Exfiltration ( Controls 0.06 cfs) Primary OutFlow Max=7.51 cfs @ 12.04 hrs HW=865.93' TW=857.00' (Fixed TW Elev= 857.00') 1=Culvert (Passes 7.51 cfs of 7.96 cfs potential flow) 2=Sharp-Crested Rectangular Weir (Weir Controls 7.51 cfs @ 2.16 fps) Type II 24-hr 100-yr Rainfall=5.93"CU NCRE HYDROLOGY CD Printed 2/5/2019Prepared by Microsoft Page 63HydroCAD® 10.00-22 s/n 05659 © 2018 HydroCAD Software Solutions LLC Stage-Discharge for Pond FA: FILTER S1-A Elevation (feet) Discharge (cfs) Discarded (cfs) Primary (cfs) 865.00 0.00 0.00 0.00 865.01 0.06 0.06 0.00 865.02 0.06 0.06 0.00 865.03 0.06 0.06 0.00 865.04 0.06 0.06 0.00 865.05 0.06 0.06 0.00 865.06 0.06 0.06 0.00 865.07 0.06 0.06 0.00 865.08 0.06 0.06 0.00 865.09 0.06 0.06 0.00 865.10 0.06 0.06 0.00 865.11 0.06 0.06 0.00 865.12 0.06 0.06 0.00 865.13 0.06 0.06 0.00 865.14 0.06 0.06 0.00 865.15 0.06 0.06 0.00 865.16 0.06 0.06 0.00 865.17 0.06 0.06 0.00 865.18 0.06 0.06 0.00 865.19 0.06 0.06 0.00 865.20 0.06 0.06 0.00 865.21 0.06 0.06 0.00 865.22 0.06 0.06 0.00 865.23 0.06 0.06 0.00 865.24 0.06 0.06 0.00 865.25 0.06 0.06 0.00 865.26 0.06 0.06 0.00 865.27 0.06 0.06 0.00 865.28 0.06 0.06 0.00 865.29 0.06 0.06 0.00 865.30 0.06 0.06 0.00 865.31 0.06 0.06 0.00 865.32 0.06 0.06 0.00 865.33 0.06 0.06 0.00 865.34 0.06 0.06 0.00 865.35 0.06 0.06 0.00 865.36 0.06 0.06 0.00 865.37 0.06 0.06 0.00 865.38 0.06 0.06 0.00 865.39 0.06 0.06 0.00 865.40 0.06 0.06 0.00 865.41 0.06 0.06 0.00 865.42 0.06 0.06 0.00 865.43 0.06 0.06 0.00 865.44 0.06 0.06 0.00 865.45 0.06 0.06 0.00 865.46 0.06 0.06 0.00 865.47 0.06 0.06 0.00 865.48 0.06 0.06 0.00 865.49 0.06 0.06 0.00 865.50 0.06 0.06 0.00 865.51 0.09 0.06 0.03 865.52 0.13 0.06 0.07 Elevation (feet) Discharge (cfs) Discarded (cfs) Primary (cfs) 865.53 0.20 0.06 0.14 865.54 0.27 0.06 0.21 865.55 0.35 0.06 0.29 865.56 0.45 0.06 0.38 865.57 0.55 0.06 0.48 865.58 0.65 0.06 0.59 865.59 0.77 0.06 0.71 865.60 0.89 0.06 0.83 865.61 1.02 0.06 0.95 865.62 1.15 0.06 1.09 865.63 1.29 0.06 1.23 865.64 1.43 0.06 1.37 865.65 1.58 0.06 1.52 865.66 1.74 0.06 1.67 865.67 1.90 0.06 1.83 865.68 2.06 0.06 2.00 865.69 2.23 0.06 2.17 865.70 2.40 0.06 2.34 865.71 2.58 0.06 2.52 865.72 2.76 0.06 2.70 865.73 2.95 0.06 2.89 865.74 3.14 0.06 3.08 865.75 3.33 0.06 3.27 865.76 3.53 0.06 3.47 865.77 3.73 0.06 3.67 865.78 3.94 0.06 3.88 865.79 4.15 0.06 4.09 865.80 4.36 0.06 4.30 865.81 4.58 0.06 4.52 865.82 4.80 0.06 4.74 865.83 5.02 0.06 4.96 865.84 5.25 0.06 5.19 865.85 5.48 0.06 5.42 865.86 5.71 0.06 5.65 865.87 5.95 0.06 5.89 865.88 6.19 0.06 6.13 865.89 6.44 0.06 6.37 865.90 6.68 0.06 6.62 865.91 6.93 0.06 6.87 865.92 7.18 0.06 7.12 865.93 7.44 0.06 7.38 865.94 7.70 0.06 7.64 865.95 7.96 0.06 7.90 865.96 8.05 0.06 7.99 865.97 8.06 0.06 8.00 865.98 8.07 0.06 8.00 865.99 8.08 0.06 8.01 866.00 8.09 0.06 8.02 Type II 24-hr 100-yr Rainfall=5.93"CU NCRE HYDROLOGY CD Printed 2/5/2019Prepared by Microsoft Page 64HydroCAD® 10.00-22 s/n 05659 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond FA: FILTER S1-A Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 865.00 2,400 0 865.01 2,404 24 865.02 2,408 48 865.03 2,412 72 865.04 2,416 96 865.05 2,420 120 865.06 2,424 145 865.07 2,428 169 865.08 2,432 193 865.09 2,436 218 865.10 2,440 242 865.11 2,444 266 865.12 2,448 291 865.13 2,452 315 865.14 2,456 340 865.15 2,460 364 865.16 2,464 389 865.17 2,468 414 865.18 2,472 438 865.19 2,476 463 865.20 2,480 488 865.21 2,484 513 865.22 2,488 538 865.23 2,492 563 865.24 2,496 588 865.25 2,500 613 865.26 2,504 638 865.27 2,508 663 865.28 2,512 688 865.29 2,516 713 865.30 2,520 738 865.31 2,524 763 865.32 2,528 788 865.33 2,532 814 865.34 2,536 839 865.35 2,540 865 865.36 2,544 890 865.37 2,548 915 865.38 2,552 941 865.39 2,556 966 865.40 2,560 992 865.41 2,564 1,018 865.42 2,568 1,043 865.43 2,572 1,069 865.44 2,576 1,095 865.45 2,580 1,121 865.46 2,584 1,146 865.47 2,588 1,172 865.48 2,592 1,198 865.49 2,596 1,224 865.50 2,600 1,250 865.51 2,604 1,276 865.52 2,608 1,302 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 865.53 2,612 1,328 865.54 2,616 1,354 865.55 2,620 1,380 865.56 2,624 1,407 865.57 2,628 1,433 865.58 2,632 1,459 865.59 2,636 1,486 865.60 2,640 1,512 865.61 2,644 1,538 865.62 2,648 1,565 865.63 2,652 1,591 865.64 2,656 1,618 865.65 2,660 1,644 865.66 2,664 1,671 865.67 2,668 1,698 865.68 2,672 1,724 865.69 2,676 1,751 865.70 2,680 1,778 865.71 2,684 1,805 865.72 2,688 1,832 865.73 2,692 1,859 865.74 2,696 1,886 865.75 2,700 1,913 865.76 2,704 1,940 865.77 2,708 1,967 865.78 2,712 1,994 865.79 2,716 2,021 865.80 2,720 2,048 865.81 2,724 2,075 865.82 2,728 2,102 865.83 2,732 2,130 865.84 2,736 2,157 865.85 2,740 2,185 865.86 2,744 2,212 865.87 2,748 2,239 865.88 2,752 2,267 865.89 2,756 2,294 865.90 2,760 2,322 865.91 2,764 2,350 865.92 2,768 2,377 865.93 2,772 2,405 865.94 2,776 2,433 865.95 2,780 2,461 865.96 2,784 2,488 865.97 2,788 2,516 865.98 2,792 2,544 865.99 2,796 2,572 866.00 2,800 2,600 Type II 24-hr 100-yr Rainfall=5.93"CU NCRE HYDROLOGY CD Printed 2/5/2019Prepared by Microsoft Page 65HydroCAD® 10.00-22 s/n 05659 © 2018 HydroCAD Software Solutions LLC Summary for Pond FE: FILTER S1-E Inflow Area = 0.517 ac, 55.51% Impervious, Inflow Depth > 4.17" for 100-yr event Inflow = 4.00 cfs @ 11.96 hrs, Volume= 0.180 af Outflow = 2.39 cfs @ 12.03 hrs, Volume= 0.157 af, Atten= 40%, Lag= 4.3 min Discarded = 0.06 cfs @ 12.03 hrs, Volume= 0.051 af Primary = 2.34 cfs @ 12.03 hrs, Volume= 0.106 af Routing by Stor-Ind method, Time Span= 0.00-20.00 hrs, dt= 0.01 hrs Peak Elev= 851.93' @ 12.03 hrs Surf.Area= 2,500 sf Storage= 2,019 cf Plug-Flow detention time= 59.7 min calculated for 0.157 af (88% of inflow) Center-of-Mass det. time= 19.1 min ( 775.0 - 755.9 ) Volume Invert Avail.Storage Storage Description #1 851.00' 5,125 cf Custom Stage Data (Prismatic) Listed below (Recalc) Elevation Surf.Area Inc.Store Cum.Store (feet) (sq-ft) (cubic-feet) (cubic-feet) 851.00 1,850 0 0 852.00 2,550 2,200 2,200 853.00 3,300 2,925 5,125 Device Routing Invert Outlet Devices #1 Primary 847.00'8.0" Round Culvert L= 220.0' RCP, sq.cut end projecting, Ke= 0.500 Inlet / Outlet Invert= 847.00' / 843.50' S= 0.0159 '/' Cc= 0.900 n= 0.010, Flow Area= 0.35 sf #2 Device 1 851.50'8.0' long Sharp-Crested Rectangular Weir 2 End Contraction(s) #3 Discarded 851.00'1.000 in/hr Exfiltration over Surface area Conductivity to Groundwater Elevation = 0.00' Discarded OutFlow Max=0.06 cfs @ 12.03 hrs HW=851.93' (Free Discharge) 3=Exfiltration ( Controls 0.06 cfs) Primary OutFlow Max=2.34 cfs @ 12.03 hrs HW=851.93' TW=846.00' (Fixed TW Elev= 846.00') 1=Culvert (Outlet Controls 2.34 cfs @ 6.70 fps) 2=Sharp-Crested Rectangular Weir (Passes 2.34 cfs of 7.26 cfs potential flow) Type II 24-hr 100-yr Rainfall=5.93"CU NCRE HYDROLOGY CD Printed 2/5/2019Prepared by Microsoft Page 66HydroCAD® 10.00-22 s/n 05659 © 2018 HydroCAD Software Solutions LLC Stage-Discharge for Pond FE: FILTER S1-E Elevation (feet) Discharge (cfs) Discarded (cfs) Primary (cfs) 851.00 0.00 0.00 0.00 851.02 0.04 0.04 0.00 851.04 0.04 0.04 0.00 851.06 0.04 0.04 0.00 851.08 0.04 0.04 0.00 851.10 0.04 0.04 0.00 851.12 0.04 0.04 0.00 851.14 0.05 0.05 0.00 851.16 0.05 0.05 0.00 851.18 0.05 0.05 0.00 851.20 0.05 0.05 0.00 851.22 0.05 0.05 0.00 851.24 0.05 0.05 0.00 851.26 0.05 0.05 0.00 851.28 0.05 0.05 0.00 851.30 0.05 0.05 0.00 851.32 0.05 0.05 0.00 851.34 0.05 0.05 0.00 851.36 0.05 0.05 0.00 851.38 0.05 0.05 0.00 851.40 0.05 0.05 0.00 851.42 0.05 0.05 0.00 851.44 0.05 0.05 0.00 851.46 0.05 0.05 0.00 851.48 0.05 0.05 0.00 851.50 0.05 0.05 0.00 851.52 0.13 0.05 0.07 851.54 0.26 0.05 0.21 851.56 0.44 0.05 0.38 851.58 0.64 0.05 0.59 851.60 0.88 0.05 0.83 851.62 1.14 0.05 1.08 851.64 1.42 0.05 1.37 851.66 1.72 0.05 1.67 851.68 2.04 0.05 1.99 851.70 2.35 0.05 2.29 851.72 2.35 0.05 2.30 851.74 2.35 0.05 2.30 851.76 2.36 0.06 2.30 851.78 2.36 0.06 2.31 851.80 2.37 0.06 2.31 851.82 2.37 0.06 2.32 851.84 2.38 0.06 2.32 851.86 2.38 0.06 2.32 851.88 2.38 0.06 2.33 851.90 2.39 0.06 2.33 851.92 2.39 0.06 2.34 851.94 2.40 0.06 2.34 851.96 2.40 0.06 2.34 851.98 2.41 0.06 2.35 852.00 2.41 0.06 2.35 852.02 2.41 0.06 2.36 852.04 2.42 0.06 2.36 Elevation (feet) Discharge (cfs) Discarded (cfs) Primary (cfs) 852.06 2.42 0.06 2.36 852.08 2.43 0.06 2.37 852.10 2.43 0.06 2.37 852.12 2.44 0.06 2.37 852.14 2.44 0.06 2.38 852.16 2.44 0.06 2.38 852.18 2.45 0.06 2.39 852.20 2.45 0.06 2.39 852.22 2.46 0.06 2.39 852.24 2.46 0.06 2.40 852.26 2.47 0.06 2.40 852.28 2.47 0.06 2.41 852.30 2.47 0.06 2.41 852.32 2.48 0.06 2.41 852.34 2.48 0.07 2.42 852.36 2.49 0.07 2.42 852.38 2.49 0.07 2.42 852.40 2.49 0.07 2.43 852.42 2.50 0.07 2.43 852.44 2.50 0.07 2.44 852.46 2.51 0.07 2.44 852.48 2.51 0.07 2.44 852.50 2.51 0.07 2.45 852.52 2.52 0.07 2.45 852.54 2.52 0.07 2.45 852.56 2.53 0.07 2.46 852.58 2.53 0.07 2.46 852.60 2.54 0.07 2.47 852.62 2.54 0.07 2.47 852.64 2.54 0.07 2.47 852.66 2.55 0.07 2.48 852.68 2.55 0.07 2.48 852.70 2.56 0.07 2.48 852.72 2.56 0.07 2.49 852.74 2.56 0.07 2.49 852.76 2.57 0.07 2.50 852.78 2.57 0.07 2.50 852.80 2.58 0.07 2.50 852.82 2.58 0.07 2.51 852.84 2.58 0.07 2.51 852.86 2.59 0.07 2.51 852.88 2.59 0.07 2.52 852.90 2.60 0.07 2.52 852.92 2.60 0.08 2.52 852.94 2.60 0.08 2.53 852.96 2.61 0.08 2.53 852.98 2.61 0.08 2.54 853.00 2.62 0.08 2.54 Type II 24-hr 100-yr Rainfall=5.93"CU NCRE HYDROLOGY CD Printed 2/5/2019Prepared by Microsoft Page 67HydroCAD® 10.00-22 s/n 05659 © 2018 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond FE: FILTER S1-E Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 851.00 1,850 0 851.02 1,864 37 851.04 1,878 75 851.06 1,892 112 851.08 1,906 150 851.10 1,920 189 851.12 1,934 227 851.14 1,948 266 851.16 1,962 305 851.18 1,976 344 851.20 1,990 384 851.22 2,004 424 851.24 2,018 464 851.26 2,032 505 851.28 2,046 545 851.30 2,060 586 851.32 2,074 628 851.34 2,088 669 851.36 2,102 711 851.38 2,116 754 851.40 2,130 796 851.42 2,144 839 851.44 2,158 882 851.46 2,172 925 851.48 2,186 969 851.50 2,200 1,013 851.52 2,214 1,057 851.54 2,228 1,101 851.56 2,242 1,146 851.58 2,256 1,191 851.60 2,270 1,236 851.62 2,284 1,282 851.64 2,298 1,327 851.66 2,312 1,373 851.68 2,326 1,420 851.70 2,340 1,467 851.72 2,354 1,513 851.74 2,368 1,561 851.76 2,382 1,608 851.78 2,396 1,656 851.80 2,410 1,704 851.82 2,424 1,752 851.84 2,438 1,801 851.86 2,452 1,850 851.88 2,466 1,899 851.90 2,480 1,948 851.92 2,494 1,998 851.94 2,508 2,048 851.96 2,522 2,099 851.98 2,536 2,149 852.00 2,550 2,200 852.02 2,565 2,251 852.04 2,580 2,303 Elevation (feet) Surface (sq-ft) Storage (cubic-feet) 852.06 2,595 2,354 852.08 2,610 2,406 852.10 2,625 2,459 852.12 2,640 2,511 852.14 2,655 2,564 852.16 2,670 2,618 852.18 2,685 2,671 852.20 2,700 2,725 852.22 2,715 2,779 852.24 2,730 2,834 852.26 2,745 2,888 852.28 2,760 2,943 852.30 2,775 2,999 852.32 2,790 3,054 852.34 2,805 3,110 852.36 2,820 3,167 852.38 2,835 3,223 852.40 2,850 3,280 852.42 2,865 3,337 852.44 2,880 3,395 852.46 2,895 3,452 852.48 2,910 3,510 852.50 2,925 3,569 852.52 2,940 3,627 852.54 2,955 3,686 852.56 2,970 3,746 852.58 2,985 3,805 852.60 3,000 3,865 852.62 3,015 3,925 852.64 3,030 3,986 852.66 3,045 4,046 852.68 3,060 4,107 852.70 3,075 4,169 852.72 3,090 4,230 852.74 3,105 4,292 852.76 3,120 4,355 852.78 3,135 4,417 852.80 3,150 4,480 852.82 3,165 4,543 852.84 3,180 4,607 852.86 3,195 4,670 852.88 3,210 4,734 852.90 3,225 4,799 852.92 3,240 4,863 852.94 3,255 4,928 852.96 3,270 4,994 852.98 3,285 5,059 853.00 3,300 5,125 Type II 24-hr 100-yr Rainfall=5.93"CU NCRE HYDROLOGY CD Printed 2/5/2019Prepared by Microsoft Page 68HydroCAD® 10.00-22 s/n 05659 © 2018 HydroCAD Software Solutions LLC Summary for Link S1PC: SUBAREA 1 PROPOSED Inflow Area = 6.400 ac, 55.00% Impervious, Inflow Depth > 4.01" for 100-yr event Inflow = 33.39 cfs @ 12.08 hrs, Volume= 2.140 af Primary = 33.39 cfs @ 12.08 hrs, Volume= 2.140 af, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow, Time Span= 0.00-20.00 hrs, dt= 0.01 hrs Type II 24-hr 100-yr Rainfall=5.93"CU NCRE HYDROLOGY CD Printed 2/5/2019Prepared by Microsoft Page 69HydroCAD® 10.00-22 s/n 05659 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment S1T: TO FILTER A Runoff = 7.89 cfs @ 12.01 hrs, Volume= 0.425 af, Depth> 4.38" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-20.00 hrs, dt= 0.01 hrs Type II 24-hr 100-yr Rainfall=5.93" Area (ac) CN Description * 0.425 74 Lawn, Landscape * 0.739 98 Paved, roof 1.164 89 Weighted Average 0.425 36.51% Pervious Area 0.739 63.49% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 10.0 Direct Entry, TO FILTER Type II 24-hr 100-yr Rainfall=5.93"CU NCRE HYDROLOGY CD Printed 2/5/2019Prepared by Microsoft Page 70HydroCAD® 10.00-22 s/n 05659 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment S1U: SUBAREA 1 P-UNTREATED Runoff = 26.79 cfs @ 12.10 hrs, Volume= 1.814 af, Depth> 4.16" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-20.00 hrs, dt= 0.01 hrs Type II 24-hr 100-yr Rainfall=5.93" Area (ac) CN Description * 2.455 74 Lawn, Landscape * 2.781 98 Paved, roof 5.236 87 Weighted Average 2.455 46.89% Pervious Area 2.781 53.11% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 14.2 100 0.0300 0.12 Sheet Flow, A-B Grass: Dense n= 0.240 P2= 2.34" 0.6 150 0.0600 3.94 Shallow Concentrated Flow, B-C Unpaved Kv= 16.1 fps 0.7 140 0.0250 3.21 Shallow Concentrated Flow, C-D Paved Kv= 20.3 fps 2.5 420 0.0300 2.84 0.24 Pipe Channel, D-E 12.0" Round w/ 10.0" inside fill Area= 0.1 sf Perim= 1.6' r= 0.05' n= 0.013 18.0 810 Total Type II 24-hr 100-yr Rainfall=5.93"CU NCRE HYDROLOGY CD Printed 2/5/2019Prepared by Microsoft Page 71HydroCAD® 10.00-22 s/n 05659 © 2018 HydroCAD Software Solutions LLC Summary for Link S2PC: SUBAREA 2 PROPOSED Inflow Area = 3.200 ac, 45.31% Impervious, Inflow Depth > 3.62" for 100-yr event Inflow = 15.38 cfs @ 12.09 hrs, Volume= 0.966 af Primary = 15.38 cfs @ 12.09 hrs, Volume= 0.966 af, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow, Time Span= 0.00-20.00 hrs, dt= 0.01 hrs Type II 24-hr 100-yr Rainfall=5.93"CU NCRE HYDROLOGY CD Printed 2/5/2019Prepared by Microsoft Page 72HydroCAD® 10.00-22 s/n 05659 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment S2T: TO FILTER S1-E Runoff = 4.00 cfs @ 11.96 hrs, Volume= 0.180 af, Depth> 4.17" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-20.00 hrs, dt= 0.01 hrs Type II 24-hr 100-yr Rainfall=5.93" Area (ac) CN Description * 0.230 74 Lawn, Landscaped * 0.287 98 Paved, Roof 0.517 87 Weighted Average 0.230 44.49% Pervious Area 0.287 55.51% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 5.0 Direct Entry, TO FILTER BASIN Type II 24-hr 100-yr Rainfall=5.93"CU NCRE HYDROLOGY CD Printed 2/5/2019Prepared by Microsoft Page 73HydroCAD® 10.00-22 s/n 05659 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment S2U: SUBAREA 2P UNTREATED Runoff = 13.06 cfs @ 12.09 hrs, Volume= 0.860 af, Depth> 3.85" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-20.00 hrs, dt= 0.01 hrs Type II 24-hr 100-yr Rainfall=5.93" Area (ac) CN Description * 1.520 74 Lawn, Landscaped * 1.163 98 Paved, Roof 2.683 84 Weighted Average 1.520 56.65% Pervious Area 1.163 43.35% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 14.2 100 0.0300 0.12 Sheet Flow, A-B Grass: Dense n= 0.240 P2= 2.34" 0.9 230 0.0650 4.10 Shallow Concentrated Flow, B-C Unpaved Kv= 16.1 fps 2.4 360 0.0600 2.54 0.06 Pipe Channel, C-D 8.0" Round w/ 7.0" inside fill Area= 0.0 sf Perim= 0.9' r= 0.03' n= 0.013 17.5 690 Total HYDROCAD CALCULATIONS REDEVELOPED SUBAREAS 3, 4 AND 5 Type II 24-hr 1-yr Rainfall=2.01"CU NCRE HYDROLOGY CD Printed 2/5/2019Prepared by Microsoft Page 1HydroCAD® 10.00-22 s/n 05659 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment S3P: SUBAREA 3 PROPOSED Runoff = 15.25 cfs @ 12.17 hrs, Volume= 1.156 af, Depth> 0.95" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-20.00 hrs, dt= 0.01 hrs Type II 24-hr 1-yr Rainfall=2.01" Area (ac) CN Description * 5.660 74 LAWN, LANDSCAPE * 8.960 98 ROOF, PAVED 14.620 89 Weighted Average 5.660 38.71% Pervious Area 8.960 61.29% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 16.7 100 0.0200 0.10 Sheet Flow, A-B Grass: Dense n= 0.240 P2= 2.34" 0.7 130 0.0400 3.22 Shallow Concentrated Flow, B-C Unpaved Kv= 16.1 fps 0.1 25 0.2500 8.05 Shallow Concentrated Flow, C-D Unpaved Kv= 16.1 fps 1.1 140 0.0400 2.07 0.05 Pipe Channel, D-E 8.0" Round w/ 7.0" inside fill Area= 0.0 sf Perim= 0.9' r= 0.03' n= 0.013 5.0 1,150 0.0220 3.86 1.33 Pipe Channel, E-F 24.0" Round w/ 20.0" inside fill Area= 0.3 sf Perim= 3.2' r= 0.11' n= 0.013 23.6 1,545 Total Type II 24-hr 1-yr Rainfall=2.01"CU NCRE HYDROLOGY CD Printed 2/5/2019Prepared by Microsoft Page 2HydroCAD® 10.00-22 s/n 05659 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment S4P: SUBAREA 4 PROPOSED Runoff = 8.53 cfs @ 12.17 hrs, Volume= 0.652 af, Depth> 0.73" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-20.00 hrs, dt= 0.01 hrs Type II 24-hr 1-yr Rainfall=2.01" Area (ac) CN Description * 5.710 74 LAWN, LANDSCAPE * 5.070 98 ROOF, PAVED 10.780 85 Weighted Average 5.710 52.97% Pervious Area 5.070 47.03% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 14.2 100 0.0300 0.12 Sheet Flow, A-B Grass: Dense n= 0.240 P2= 2.34" 0.4 150 0.0800 6.02 0.92 Pipe Channel, B-C 12.0" Round w/ 9.0" inside fill Area= 0.2 sf Perim= 1.9' r= 0.08' n= 0.013 4.9 560 0.0340 1.92 0.06 Pipe Channel, C-D 12.0" Round w/ 11.0" inside fill Area= 0.0 sf Perim= 1.1' r= 0.03' n= 0.013 4.0 560 0.0200 2.33 0.25 Pipe Channel, D-E 18.0" Round w/ 16.0" inside fill Area= 0.1 sf Perim= 2.0' r= 0.05' n= 0.013 23.5 1,370 Total Type II 24-hr 1-yr Rainfall=2.01"CU NCRE HYDROLOGY CD Printed 2/5/2019Prepared by Microsoft Page 3HydroCAD® 10.00-22 s/n 05659 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment S5P: SUBAREA 5 PROPOSED Runoff = 22.17 cfs @ 12.35 hrs, Volume= 2.253 af, Depth> 0.77" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-20.00 hrs, dt= 0.01 hrs Type II 24-hr 1-yr Rainfall=2.01" Area (ac) CN Description * 16.550 74 LAWN, LANDSCAPE * 17.200 98 ROOF, PAVED * 1.250 74 TURF FIELD 35.000 86 Weighted Average 17.800 50.86% Pervious Area 17.200 49.14% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 22.0 100 0.0100 0.08 Sheet Flow, A-B Grass: Dense n= 0.240 P2= 2.34" 0.7 70 0.0100 1.61 Shallow Concentrated Flow, B-C Unpaved Kv= 16.1 fps 4.6 350 0.0150 1.27 0.03 Pipe Channel, C-D 8.0" Round w/ 7.0" inside fill Area= 0.0 sf Perim= 0.9' r= 0.03' n= 0.013 4.1 430 0.0110 1.73 0.19 Pipe Channel, D-E 18.0" Round w/ 16.0" inside fill Area= 0.1 sf Perim= 2.0' r= 0.05' n= 0.013 5.3 1,520 0.0200 4.82 3.73 Pipe Channel, E-F 36.0" Round w/ 30.0" inside fill Area= 0.8 sf Perim= 4.8' r= 0.16' n= 0.013 36.7 2,470 Total Type II 24-hr 2-yr Rainfall=2.34"CU NCRE HYDROLOGY CD Printed 2/5/2019Prepared by Microsoft Page 4HydroCAD® 10.00-22 s/n 05659 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment S3P: SUBAREA 3 PROPOSED Runoff = 19.41 cfs @ 12.17 hrs, Volume= 1.474 af, Depth> 1.21" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-20.00 hrs, dt= 0.01 hrs Type II 24-hr 2-yr Rainfall=2.34" Area (ac) CN Description * 5.660 74 LAWN, LANDSCAPE * 8.960 98 ROOF, PAVED 14.620 89 Weighted Average 5.660 38.71% Pervious Area 8.960 61.29% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 16.7 100 0.0200 0.10 Sheet Flow, A-B Grass: Dense n= 0.240 P2= 2.34" 0.7 130 0.0400 3.22 Shallow Concentrated Flow, B-C Unpaved Kv= 16.1 fps 0.1 25 0.2500 8.05 Shallow Concentrated Flow, C-D Unpaved Kv= 16.1 fps 1.1 140 0.0400 2.07 0.05 Pipe Channel, D-E 8.0" Round w/ 7.0" inside fill Area= 0.0 sf Perim= 0.9' r= 0.03' n= 0.013 5.0 1,150 0.0220 3.86 1.33 Pipe Channel, E-F 24.0" Round w/ 20.0" inside fill Area= 0.3 sf Perim= 3.2' r= 0.11' n= 0.013 23.6 1,545 Total Type II 24-hr 2-yr Rainfall=2.34"CU NCRE HYDROLOGY CD Printed 2/5/2019Prepared by Microsoft Page 5HydroCAD® 10.00-22 s/n 05659 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment S4P: SUBAREA 4 PROPOSED Runoff = 11.34 cfs @ 12.17 hrs, Volume= 0.860 af, Depth> 0.96" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-20.00 hrs, dt= 0.01 hrs Type II 24-hr 2-yr Rainfall=2.34" Area (ac) CN Description * 5.710 74 LAWN, LANDSCAPE * 5.070 98 ROOF, PAVED 10.780 85 Weighted Average 5.710 52.97% Pervious Area 5.070 47.03% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 14.2 100 0.0300 0.12 Sheet Flow, A-B Grass: Dense n= 0.240 P2= 2.34" 0.4 150 0.0800 6.02 0.92 Pipe Channel, B-C 12.0" Round w/ 9.0" inside fill Area= 0.2 sf Perim= 1.9' r= 0.08' n= 0.013 4.9 560 0.0340 1.92 0.06 Pipe Channel, C-D 12.0" Round w/ 11.0" inside fill Area= 0.0 sf Perim= 1.1' r= 0.03' n= 0.013 4.0 560 0.0200 2.33 0.25 Pipe Channel, D-E 18.0" Round w/ 16.0" inside fill Area= 0.1 sf Perim= 2.0' r= 0.05' n= 0.013 23.5 1,370 Total Type II 24-hr 2-yr Rainfall=2.34"CU NCRE HYDROLOGY CD Printed 2/5/2019Prepared by Microsoft Page 6HydroCAD® 10.00-22 s/n 05659 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment S5P: SUBAREA 5 PROPOSED Runoff = 29.20 cfs @ 12.35 hrs, Volume= 2.948 af, Depth> 1.01" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-20.00 hrs, dt= 0.01 hrs Type II 24-hr 2-yr Rainfall=2.34" Area (ac) CN Description * 16.550 74 LAWN, LANDSCAPE * 17.200 98 ROOF, PAVED * 1.250 74 TURF FIELD 35.000 86 Weighted Average 17.800 50.86% Pervious Area 17.200 49.14% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 22.0 100 0.0100 0.08 Sheet Flow, A-B Grass: Dense n= 0.240 P2= 2.34" 0.7 70 0.0100 1.61 Shallow Concentrated Flow, B-C Unpaved Kv= 16.1 fps 4.6 350 0.0150 1.27 0.03 Pipe Channel, C-D 8.0" Round w/ 7.0" inside fill Area= 0.0 sf Perim= 0.9' r= 0.03' n= 0.013 4.1 430 0.0110 1.73 0.19 Pipe Channel, D-E 18.0" Round w/ 16.0" inside fill Area= 0.1 sf Perim= 2.0' r= 0.05' n= 0.013 5.3 1,520 0.0200 4.82 3.73 Pipe Channel, E-F 36.0" Round w/ 30.0" inside fill Area= 0.8 sf Perim= 4.8' r= 0.16' n= 0.013 36.7 2,470 Total Type II 24-hr 10-yr Rainfall=3.43"CU NCRE HYDROLOGY CD Printed 2/5/2019Prepared by Microsoft Page 7HydroCAD® 10.00-22 s/n 05659 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment S3P: SUBAREA 3 PROPOSED Runoff = 33.60 cfs @ 12.16 hrs, Volume= 2.590 af, Depth> 2.13" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-20.00 hrs, dt= 0.01 hrs Type II 24-hr 10-yr Rainfall=3.43" Area (ac) CN Description * 5.660 74 LAWN, LANDSCAPE * 8.960 98 ROOF, PAVED 14.620 89 Weighted Average 5.660 38.71% Pervious Area 8.960 61.29% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 16.7 100 0.0200 0.10 Sheet Flow, A-B Grass: Dense n= 0.240 P2= 2.34" 0.7 130 0.0400 3.22 Shallow Concentrated Flow, B-C Unpaved Kv= 16.1 fps 0.1 25 0.2500 8.05 Shallow Concentrated Flow, C-D Unpaved Kv= 16.1 fps 1.1 140 0.0400 2.07 0.05 Pipe Channel, D-E 8.0" Round w/ 7.0" inside fill Area= 0.0 sf Perim= 0.9' r= 0.03' n= 0.013 5.0 1,150 0.0220 3.86 1.33 Pipe Channel, E-F 24.0" Round w/ 20.0" inside fill Area= 0.3 sf Perim= 3.2' r= 0.11' n= 0.013 23.6 1,545 Total Type II 24-hr 10-yr Rainfall=3.43"CU NCRE HYDROLOGY CD Printed 2/5/2019Prepared by Microsoft Page 8HydroCAD® 10.00-22 s/n 05659 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment S4P: SUBAREA 4 PROPOSED Runoff = 21.32 cfs @ 12.17 hrs, Volume= 1.616 af, Depth> 1.80" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-20.00 hrs, dt= 0.01 hrs Type II 24-hr 10-yr Rainfall=3.43" Area (ac) CN Description * 5.710 74 LAWN, LANDSCAPE * 5.070 98 ROOF, PAVED 10.780 85 Weighted Average 5.710 52.97% Pervious Area 5.070 47.03% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 14.2 100 0.0300 0.12 Sheet Flow, A-B Grass: Dense n= 0.240 P2= 2.34" 0.4 150 0.0800 6.02 0.92 Pipe Channel, B-C 12.0" Round w/ 9.0" inside fill Area= 0.2 sf Perim= 1.9' r= 0.08' n= 0.013 4.9 560 0.0340 1.92 0.06 Pipe Channel, C-D 12.0" Round w/ 11.0" inside fill Area= 0.0 sf Perim= 1.1' r= 0.03' n= 0.013 4.0 560 0.0200 2.33 0.25 Pipe Channel, D-E 18.0" Round w/ 16.0" inside fill Area= 0.1 sf Perim= 2.0' r= 0.05' n= 0.013 23.5 1,370 Total Type II 24-hr 10-yr Rainfall=3.43"CU NCRE HYDROLOGY CD Printed 2/5/2019Prepared by Microsoft Page 9HydroCAD® 10.00-22 s/n 05659 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment S5P: SUBAREA 5 PROPOSED Runoff = 54.07 cfs @ 12.32 hrs, Volume= 5.450 af, Depth> 1.87" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-20.00 hrs, dt= 0.01 hrs Type II 24-hr 10-yr Rainfall=3.43" Area (ac) CN Description * 16.550 74 LAWN, LANDSCAPE * 17.200 98 ROOF, PAVED * 1.250 74 TURF FIELD 35.000 86 Weighted Average 17.800 50.86% Pervious Area 17.200 49.14% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 22.0 100 0.0100 0.08 Sheet Flow, A-B Grass: Dense n= 0.240 P2= 2.34" 0.7 70 0.0100 1.61 Shallow Concentrated Flow, B-C Unpaved Kv= 16.1 fps 4.6 350 0.0150 1.27 0.03 Pipe Channel, C-D 8.0" Round w/ 7.0" inside fill Area= 0.0 sf Perim= 0.9' r= 0.03' n= 0.013 4.1 430 0.0110 1.73 0.19 Pipe Channel, D-E 18.0" Round w/ 16.0" inside fill Area= 0.1 sf Perim= 2.0' r= 0.05' n= 0.013 5.3 1,520 0.0200 4.82 3.73 Pipe Channel, E-F 36.0" Round w/ 30.0" inside fill Area= 0.8 sf Perim= 4.8' r= 0.16' n= 0.013 36.7 2,470 Total Type II 24-hr 25-yr Rainfall=4.26"CU NCRE HYDROLOGY CD Printed 2/5/2019Prepared by Microsoft Page 10HydroCAD® 10.00-22 s/n 05659 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment S3P: SUBAREA 3 PROPOSED Runoff = 44.58 cfs @ 12.16 hrs, Volume= 3.479 af, Depth> 2.86" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-20.00 hrs, dt= 0.01 hrs Type II 24-hr 25-yr Rainfall=4.26" Area (ac) CN Description * 5.660 74 LAWN, LANDSCAPE * 8.960 98 ROOF, PAVED 14.620 89 Weighted Average 5.660 38.71% Pervious Area 8.960 61.29% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 16.7 100 0.0200 0.10 Sheet Flow, A-B Grass: Dense n= 0.240 P2= 2.34" 0.7 130 0.0400 3.22 Shallow Concentrated Flow, B-C Unpaved Kv= 16.1 fps 0.1 25 0.2500 8.05 Shallow Concentrated Flow, C-D Unpaved Kv= 16.1 fps 1.1 140 0.0400 2.07 0.05 Pipe Channel, D-E 8.0" Round w/ 7.0" inside fill Area= 0.0 sf Perim= 0.9' r= 0.03' n= 0.013 5.0 1,150 0.0220 3.86 1.33 Pipe Channel, E-F 24.0" Round w/ 20.0" inside fill Area= 0.3 sf Perim= 3.2' r= 0.11' n= 0.013 23.6 1,545 Total Type II 24-hr 25-yr Rainfall=4.26"CU NCRE HYDROLOGY CD Printed 2/5/2019Prepared by Microsoft Page 11HydroCAD® 10.00-22 s/n 05659 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment S4P: SUBAREA 4 PROPOSED Runoff = 29.26 cfs @ 12.16 hrs, Volume= 2.236 af, Depth> 2.49" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-20.00 hrs, dt= 0.01 hrs Type II 24-hr 25-yr Rainfall=4.26" Area (ac) CN Description * 5.710 74 LAWN, LANDSCAPE * 5.070 98 ROOF, PAVED 10.780 85 Weighted Average 5.710 52.97% Pervious Area 5.070 47.03% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 14.2 100 0.0300 0.12 Sheet Flow, A-B Grass: Dense n= 0.240 P2= 2.34" 0.4 150 0.0800 6.02 0.92 Pipe Channel, B-C 12.0" Round w/ 9.0" inside fill Area= 0.2 sf Perim= 1.9' r= 0.08' n= 0.013 4.9 560 0.0340 1.92 0.06 Pipe Channel, C-D 12.0" Round w/ 11.0" inside fill Area= 0.0 sf Perim= 1.1' r= 0.03' n= 0.013 4.0 560 0.0200 2.33 0.25 Pipe Channel, D-E 18.0" Round w/ 16.0" inside fill Area= 0.1 sf Perim= 2.0' r= 0.05' n= 0.013 23.5 1,370 Total Type II 24-hr 25-yr Rainfall=4.26"CU NCRE HYDROLOGY CD Printed 2/5/2019Prepared by Microsoft Page 12HydroCAD® 10.00-22 s/n 05659 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment S5P: SUBAREA 5 PROPOSED Runoff = 73.81 cfs @ 12.32 hrs, Volume= 7.486 af, Depth> 2.57" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-20.00 hrs, dt= 0.01 hrs Type II 24-hr 25-yr Rainfall=4.26" Area (ac) CN Description * 16.550 74 LAWN, LANDSCAPE * 17.200 98 ROOF, PAVED * 1.250 74 TURF FIELD 35.000 86 Weighted Average 17.800 50.86% Pervious Area 17.200 49.14% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 22.0 100 0.0100 0.08 Sheet Flow, A-B Grass: Dense n= 0.240 P2= 2.34" 0.7 70 0.0100 1.61 Shallow Concentrated Flow, B-C Unpaved Kv= 16.1 fps 4.6 350 0.0150 1.27 0.03 Pipe Channel, C-D 8.0" Round w/ 7.0" inside fill Area= 0.0 sf Perim= 0.9' r= 0.03' n= 0.013 4.1 430 0.0110 1.73 0.19 Pipe Channel, D-E 18.0" Round w/ 16.0" inside fill Area= 0.1 sf Perim= 2.0' r= 0.05' n= 0.013 5.3 1,520 0.0200 4.82 3.73 Pipe Channel, E-F 36.0" Round w/ 30.0" inside fill Area= 0.8 sf Perim= 4.8' r= 0.16' n= 0.013 36.7 2,470 Total Type II 24-hr 100-yr Rainfall=5.93"CU NCRE HYDROLOGY CD Printed 2/5/2019Prepared by Microsoft Page 13HydroCAD® 10.00-22 s/n 05659 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment S3P: SUBAREA 3 PROPOSED Runoff = 66.67 cfs @ 12.16 hrs, Volume= 5.317 af, Depth> 4.36" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-20.00 hrs, dt= 0.01 hrs Type II 24-hr 100-yr Rainfall=5.93" Area (ac) CN Description * 5.660 74 LAWN, LANDSCAPE * 8.960 98 ROOF, PAVED 14.620 89 Weighted Average 5.660 38.71% Pervious Area 8.960 61.29% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 16.7 100 0.0200 0.10 Sheet Flow, A-B Grass: Dense n= 0.240 P2= 2.34" 0.7 130 0.0400 3.22 Shallow Concentrated Flow, B-C Unpaved Kv= 16.1 fps 0.1 25 0.2500 8.05 Shallow Concentrated Flow, C-D Unpaved Kv= 16.1 fps 1.1 140 0.0400 2.07 0.05 Pipe Channel, D-E 8.0" Round w/ 7.0" inside fill Area= 0.0 sf Perim= 0.9' r= 0.03' n= 0.013 5.0 1,150 0.0220 3.86 1.33 Pipe Channel, E-F 24.0" Round w/ 20.0" inside fill Area= 0.3 sf Perim= 3.2' r= 0.11' n= 0.013 23.6 1,545 Total Type II 24-hr 100-yr Rainfall=5.93"CU NCRE HYDROLOGY CD Printed 2/5/2019Prepared by Microsoft Page 14HydroCAD® 10.00-22 s/n 05659 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment S4P: SUBAREA 4 PROPOSED Runoff = 45.55 cfs @ 12.16 hrs, Volume= 3.541 af, Depth> 3.94" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-20.00 hrs, dt= 0.01 hrs Type II 24-hr 100-yr Rainfall=5.93" Area (ac) CN Description * 5.710 74 LAWN, LANDSCAPE * 5.070 98 ROOF, PAVED 10.780 85 Weighted Average 5.710 52.97% Pervious Area 5.070 47.03% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 14.2 100 0.0300 0.12 Sheet Flow, A-B Grass: Dense n= 0.240 P2= 2.34" 0.4 150 0.0800 6.02 0.92 Pipe Channel, B-C 12.0" Round w/ 9.0" inside fill Area= 0.2 sf Perim= 1.9' r= 0.08' n= 0.013 4.9 560 0.0340 1.92 0.06 Pipe Channel, C-D 12.0" Round w/ 11.0" inside fill Area= 0.0 sf Perim= 1.1' r= 0.03' n= 0.013 4.0 560 0.0200 2.33 0.25 Pipe Channel, D-E 18.0" Round w/ 16.0" inside fill Area= 0.1 sf Perim= 2.0' r= 0.05' n= 0.013 23.5 1,370 Total Type II 24-hr 100-yr Rainfall=5.93"CU NCRE HYDROLOGY CD Printed 2/5/2019Prepared by Microsoft Page 15HydroCAD® 10.00-22 s/n 05659 © 2018 HydroCAD Software Solutions LLC Summary for Subcatchment S5P: SUBAREA 5 PROPOSED Runoff = 114.12 cfs @ 12.31 hrs, Volume= 11.753 af, Depth> 4.03" Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-20.00 hrs, dt= 0.01 hrs Type II 24-hr 100-yr Rainfall=5.93" Area (ac) CN Description * 16.550 74 LAWN, LANDSCAPE * 17.200 98 ROOF, PAVED * 1.250 74 TURF FIELD 35.000 86 Weighted Average 17.800 50.86% Pervious Area 17.200 49.14% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 22.0 100 0.0100 0.08 Sheet Flow, A-B Grass: Dense n= 0.240 P2= 2.34" 0.7 70 0.0100 1.61 Shallow Concentrated Flow, B-C Unpaved Kv= 16.1 fps 4.6 350 0.0150 1.27 0.03 Pipe Channel, C-D 8.0" Round w/ 7.0" inside fill Area= 0.0 sf Perim= 0.9' r= 0.03' n= 0.013 4.1 430 0.0110 1.73 0.19 Pipe Channel, D-E 18.0" Round w/ 16.0" inside fill Area= 0.1 sf Perim= 2.0' r= 0.05' n= 0.013 5.3 1,520 0.0200 4.82 3.73 Pipe Channel, E-F 36.0" Round w/ 30.0" inside fill Area= 0.8 sf Perim= 4.8' r= 0.16' n= 0.013 36.7 2,470 Total SOIL INFORMATION Soil Map—Tompkins County, New York (CU North Campus) Natural Resources Conservation Service Web Soil Survey National Cooperative Soil Survey 3/29/2018 Page 1 of 347011804701250470132047013904701460470153047016004701180470125047013204701390470146047015304701600379140379210379280379350379420379490379560379630379700379770379840 379140 379210 379280 379350 379420 379490 379560 379630 379700 379770 42° 27' 27'' N 76° 28' 11'' W42° 27' 27'' N76° 27' 40'' W42° 27' 12'' N 76° 28' 11'' W42° 27' 12'' N 76° 27' 40'' WN Map projection: Web Mercator Corner coordinates: WGS84 Edge tics: UTM Zone 18N WGS84 0 150 300 600 900 Feet 0 45 90 180 270 Meters Map Scale: 1:3,240 if printed on A landscape (11" x 8.5") sheet. Soil Map may not be valid at this scale. WETLAND MAPS CU Resitential Student Housing U.S. Fish and Wildlife Service, National Standards and Support Team,wetlands_team@fws.gov Wetlands Estuarine and Marine Deepwater Estuarine and Marine Wetland Freshwater Emergent Wetland Freshwater Forested/Shrub Wetland Freshwater Pond Lake Other Riverine October 15, 2018 0 0.25 0.50.125 mi 0 0.4 0.80.2 km 1:1 5,279 This page was produced by the NWI mapperNational Wetlands Inventory (NWI) This map is for general reference only. The US Fish and Wildlife Service is not responsible for the accuracy or currentness of the base data shown on this map. All wetlands related data should be used in accordance with the layer metadata found on the Wetlands Mapper web site. C U R e s id en t ia l S tu d e n t H o us i ng Esr i, H ER E, Gar m in, © Op enStreetM ap c ontr ib u to r s, a nd th e GISuser c omm un i ty Oc to b e r 1 5 , 2 0 18 0 0.45 0.90.225 mi 0 0.7 1.40.35 km 1:1 8 ,0 5 6 No t a legal doc u m entAuthor: T.G. M i lle r, P.C . FLOOD PLAIN MAPS