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HomeMy WebLinkAbout725MainSt_PostDevelopment_Atlas142S Pump Station Access Pavement 5S Pump Station Roof 7S Driveway 3P Cultec 6P Leaching CB 8PCB Infiltration Trenches 4L Connection to existing drainage 9L Offsite Routing Diagram for 725MainSt_PostDevelopment Prepared by Apex Companies, Printed 1/10/2023 HydroCAD® 10.20-2g s/n 04044 © 2022 HydroCAD Software Solutions LLC Subcat Reach Pond Link 725MainSt_PostDevelopment Printed 1/10/2023Prepared by Apex Companies Page 2HydroCAD® 10.20-2g s/n 04044 © 2022 HydroCAD Software Solutions LLC Rainfall Events Listing (selected events) Event# Event Name Storm Type Curve Mode Duration (hours) B/B Depth (inches) AMC 1 2-Year NRCC 24-hr C Default 24.00 1 3.39 2 2 10-Year NRCC 24-hr C Default 24.00 1 4.95 2 3 25-Year NRCC 24-hr C Default 24.00 1 5.92 2 4 100-Year NRCC 24-hr C Default 24.00 1 7.41 2 725MainSt_PostDevelopment Printed 1/10/2023Prepared by Apex Companies Page 3HydroCAD® 10.20-2g s/n 04044 © 2022 HydroCAD Software Solutions LLC Area Listing (all nodes) Area (acres) CN Description (subcatchment-numbers) 0.111 98 Paved parking, HSG A (2S) 0.037 83 Paved roads w/open ditches, 50% imp, HSG A (7S) 0.036 98 Roofs, HSG A (5S) 0.184 95 TOTAL AREA 725MainSt_PostDevelopment Printed 1/10/2023Prepared by Apex Companies Page 4HydroCAD® 10.20-2g s/n 04044 © 2022 HydroCAD Software Solutions LLC Soil Listing (all nodes) Area (acres) Soil Group Subcatchment Numbers 0.184 HSG A 2S, 5S, 7S 0.000 HSG B 0.000 HSG C 0.000 HSG D 0.000 Other 0.184 TOTAL AREA 725MainSt_PostDevelopment Printed 1/10/2023Prepared by Apex Companies Page 5HydroCAD® 10.20-2g s/n 04044 © 2022 HydroCAD Software Solutions LLC Ground Covers (all nodes) HSG-A (acres) HSG-B (acres) HSG-C (acres) HSG-D (acres) Other (acres) Total (acres) Ground Cover Subcatchm Numbers 0.111 0.000 0.000 0.000 0.000 0.111 Paved parking 0.037 0.000 0.000 0.000 0.000 0.037 Paved roads w/open ditches, 50% imp 0.036 0.000 0.000 0.000 0.000 0.036 Roofs 0.184 0.000 0.000 0.000 0.000 0.184 TOTAL AREA NRCC 24-hr C 2-Year Rainfall=3.39"725MainSt_PostDevelopment Printed 1/10/2023Prepared by Apex Companies Page 6HydroCAD® 10.20-2g s/n 04044 © 2022 HydroCAD Software Solutions LLC Time span=0.00-48.00 hrs, dt=0.01 hrs, 4801 points Runoff by SCS TR-20 method, UH=SCS, Weighted-CN Reach routing by Stor-Ind method - Pond routing by Stor-Ind method Runoff Area=4,850 sf 100.00% Impervious Runoff Depth=3.16"Subcatchment 2S: Pump Station Access Tc=6.0 min CN=98 Runoff=0.39 cfs 0.029 af Runoff Area=1,560 sf 100.00% Impervious Runoff Depth=3.16"Subcatchment 5S: Pump Station Roof Tc=6.0 min CN=98 Runoff=0.12 cfs 0.009 af Runoff Area=1,600 sf 50.00% Impervious Runoff Depth=1.77"Subcatchment 7S: Driveway Tc=6.0 min CN=83 Runoff=0.08 cfs 0.005 af Peak Elev=15.80' Storage=0.000 af Inflow=0.39 cfs 0.029 afPond 3P: Cultec Discarded=0.39 cfs 0.029 af Primary=0.00 cfs 0.000 af Outflow=0.39 cfs 0.029 af Inflow=0.12 cfs 0.009 afPond 6P: Leaching CB Primary=0.12 cfs 0.009 af Peak Elev=0.00' Inflow=0.08 cfs 0.005 afPond 8P: Infiltration Trenches Outflow=0.50 cfs 1.984 af Inflow=0.00 cfs 0.000 afLink 4L: Connection to existing drainage Primary=0.00 cfs 0.000 af Inflow=0.50 cfs 1.984 afLink 9L: Offsite Primary=0.50 cfs 1.984 af Total Runoff Area = 0.184 ac Runoff Volume = 0.044 af Average Runoff Depth = 2.88" 9.99% Pervious = 0.018 ac 90.01% Impervious = 0.166 ac NRCC 24-hr C 2-Year Rainfall=3.39"725MainSt_PostDevelopment Printed 1/10/2023Prepared by Apex Companies Page 7HydroCAD® 10.20-2g s/n 04044 © 2022 HydroCAD Software Solutions LLC Summary for Subcatchment 2S: Pump Station Access Pavement Runoff = 0.39 cfs @ 12.13 hrs, Volume= 0.029 af, Depth= 3.16" Routed to Pond 3P : Cultec Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-48.00 hrs, dt= 0.01 hrs NRCC 24-hr C 2-Year Rainfall=3.39" Area (sf) CN Description 4,850 98 Paved parking, HSG A 4,850 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Direct Summary for Subcatchment 5S: Pump Station Roof Runoff = 0.12 cfs @ 12.13 hrs, Volume= 0.009 af, Depth= 3.16" Routed to Pond 6P : Leaching CB Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-48.00 hrs, dt= 0.01 hrs NRCC 24-hr C 2-Year Rainfall=3.39" Area (sf) CN Description 1,560 98 Roofs, HSG A 1,560 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Summary for Subcatchment 7S: Driveway Runoff = 0.08 cfs @ 12.13 hrs, Volume= 0.005 af, Depth= 1.77" Routed to Pond 8P : Infiltration Trenches Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-48.00 hrs, dt= 0.01 hrs NRCC 24-hr C 2-Year Rainfall=3.39" Area (sf) CN Description 1,600 83 Paved roads w/open ditches, 50% imp, HSG A 800 50.00% Pervious Area 800 50.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, NRCC 24-hr C 2-Year Rainfall=3.39"725MainSt_PostDevelopment Printed 1/10/2023Prepared by Apex Companies Page 8HydroCAD® 10.20-2g s/n 04044 © 2022 HydroCAD Software Solutions LLC Summary for Pond 3P: Cultec Inflow Area = 0.111 ac,100.00% Impervious, Inflow Depth = 3.16" for 2-Year event Inflow = 0.39 cfs @ 12.13 hrs, Volume= 0.029 af Outflow = 0.39 cfs @ 12.13 hrs, Volume= 0.029 af, Atten= 0%, Lag= 0.0 min Discarded = 0.39 cfs @ 12.13 hrs, Volume= 0.029 af Primary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routed to Link 4L : Connection to existing drainage Routing by Stor-Ind method, Time Span= 0.00-48.00 hrs, dt= 0.01 hrs Peak Elev= 15.80' @ 12.13 hrs Surf.Area= 0.009 ac Storage= 0.000 af Plug-Flow detention time= 0.0 min calculated for 0.029 af (100% of inflow) Center-of-Mass det. time= 0.0 min ( 757.1 - 757.1 ) Volume Invert Avail.Storage Storage Description #1A 15.80' 0.008 af 16.00'W x 24.50'L x 3.54'H Stone 0.032 af Overall - 0.012 af Embedded = 0.020 af x 40.0% Voids #2A 16.30' 0.012 af Cultec R-330XLHD x 9 Inside #1 Effective Size= 47.8"W x 30.0"H => 7.45 sf x 7.00'L = 52.2 cf Overall Size= 52.0"W x 30.5"H x 8.50'L with 1.50' Overlap Row Length Adjustment= +1.50' x 7.45 sf x 3 rows 0.020 af Total Available Storage Storage Group A created with Chamber Wizard Device Routing Invert Outlet Devices #1 Discarded 15.80'6.00 cfs Exfiltration at all elevations #2 Primary 18.80'6.0" Round Outlet to Storm Drain L= 8.0' Ke= 0.200 Inlet / Outlet Invert= 18.80' / 0.00' S= 2.3500 '/' Cc= 0.900 n= 0.010 PVC, smooth interior, Flow Area= 0.20 sf Discarded OutFlow Max=6.00 cfs @ 12.13 hrs HW=15.80' (Free Discharge) 1=Exfiltration (Exfiltration Controls 6.00 cfs) Primary OutFlow Max=0.00 cfs @ 0.00 hrs HW=15.80' (Free Discharge) 2=Outlet to Storm Drain ( Controls 0.00 cfs) Summary for Pond 6P: Leaching CB Inflow Area = 0.036 ac,100.00% Impervious, Inflow Depth = 3.16" for 2-Year event Inflow = 0.12 cfs @ 12.13 hrs, Volume= 0.009 af Primary = 0.12 cfs @ 12.13 hrs, Volume= 0.009 af, Atten= 0%, Lag= 0.0 min Routing by Stor-Ind method, Time Span= 0.00-48.00 hrs, dt= 0.01 hrs NRCC 24-hr C 2-Year Rainfall=3.39"725MainSt_PostDevelopment Printed 1/10/2023Prepared by Apex Companies Page 9HydroCAD® 10.20-2g s/n 04044 © 2022 HydroCAD Software Solutions LLC Summary for Pond 8P: Infiltration Trenches Inflow Area = 0.037 ac, 50.00% Impervious, Inflow Depth = 1.77" for 2-Year event Inflow = 0.08 cfs @ 12.13 hrs, Volume= 0.005 af Outflow = 0.50 cfs @ 0.00 hrs, Volume= 1.984 af, Atten= 0%, Lag= 0.0 min Primary = 0.50 cfs @ 0.00 hrs, Volume= 1.984 af Routed to Link 9L : Offsite Routing by Stor-Ind method, Time Span= 0.00-48.00 hrs, dt= 0.01 hrs Peak Elev= 0.00' @ 0.00 hrs Flood Elev= 19.00' Device Routing Invert Outlet Devices #1 Primary 0.00'0.50 cfs Exfiltration at all elevations Primary OutFlow Max=0.50 cfs @ 0.00 hrs HW=0.00' (Free Discharge) 1=Exfiltration (Exfiltration Controls 0.50 cfs) Summary for Link 4L: Connection to existing drainage Inflow Area = 0.111 ac,100.00% Impervious, Inflow Depth = 0.00" for 2-Year event Inflow = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Primary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow, Time Span= 0.00-48.00 hrs, dt= 0.01 hrs Summary for Link 9L: Offsite Inflow Area = 0.037 ac, 50.00% Impervious, Inflow Depth > 648.13" for 2-Year event Inflow = 0.50 cfs @ 0.00 hrs, Volume= 1.984 af Primary = 0.50 cfs @ 0.00 hrs, Volume= 1.984 af, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow, Time Span= 0.00-48.00 hrs, dt= 0.01 hrs NRCC 24-hr C 10-Year Rainfall=4.95"725MainSt_PostDevelopment Printed 1/10/2023Prepared by Apex Companies Page 10HydroCAD® 10.20-2g s/n 04044 © 2022 HydroCAD Software Solutions LLC Time span=0.00-48.00 hrs, dt=0.01 hrs, 4801 points Runoff by SCS TR-20 method, UH=SCS, Weighted-CN Reach routing by Stor-Ind method - Pond routing by Stor-Ind method Runoff Area=4,850 sf 100.00% Impervious Runoff Depth=4.71"Subcatchment 2S: Pump Station Access Tc=6.0 min CN=98 Runoff=0.57 cfs 0.044 af Runoff Area=1,560 sf 100.00% Impervious Runoff Depth=4.71"Subcatchment 5S: Pump Station Roof Tc=6.0 min CN=98 Runoff=0.18 cfs 0.014 af Runoff Area=1,600 sf 50.00% Impervious Runoff Depth=3.13"Subcatchment 7S: Driveway Tc=6.0 min CN=83 Runoff=0.14 cfs 0.010 af Peak Elev=15.80' Storage=0.000 af Inflow=0.57 cfs 0.044 afPond 3P: Cultec Discarded=0.57 cfs 0.044 af Primary=0.00 cfs 0.000 af Outflow=0.57 cfs 0.044 af Inflow=0.18 cfs 0.014 afPond 6P: Leaching CB Primary=0.18 cfs 0.014 af Peak Elev=0.00' Inflow=0.14 cfs 0.010 afPond 8P: Infiltration Trenches Outflow=0.50 cfs 1.984 af Inflow=0.00 cfs 0.000 afLink 4L: Connection to existing drainage Primary=0.00 cfs 0.000 af Inflow=0.50 cfs 1.984 afLink 9L: Offsite Primary=0.50 cfs 1.984 af Total Runoff Area = 0.184 ac Runoff Volume = 0.067 af Average Runoff Depth = 4.40" 9.99% Pervious = 0.018 ac 90.01% Impervious = 0.166 ac NRCC 24-hr C 10-Year Rainfall=4.95"725MainSt_PostDevelopment Printed 1/10/2023Prepared by Apex Companies Page 11HydroCAD® 10.20-2g s/n 04044 © 2022 HydroCAD Software Solutions LLC Summary for Subcatchment 2S: Pump Station Access Pavement Runoff = 0.57 cfs @ 12.13 hrs, Volume= 0.044 af, Depth= 4.71" Routed to Pond 3P : Cultec Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-48.00 hrs, dt= 0.01 hrs NRCC 24-hr C 10-Year Rainfall=4.95" Area (sf) CN Description 4,850 98 Paved parking, HSG A 4,850 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Direct Summary for Subcatchment 5S: Pump Station Roof Runoff = 0.18 cfs @ 12.13 hrs, Volume= 0.014 af, Depth= 4.71" Routed to Pond 6P : Leaching CB Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-48.00 hrs, dt= 0.01 hrs NRCC 24-hr C 10-Year Rainfall=4.95" Area (sf) CN Description 1,560 98 Roofs, HSG A 1,560 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Summary for Subcatchment 7S: Driveway Runoff = 0.14 cfs @ 12.13 hrs, Volume= 0.010 af, Depth= 3.13" Routed to Pond 8P : Infiltration Trenches Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-48.00 hrs, dt= 0.01 hrs NRCC 24-hr C 10-Year Rainfall=4.95" Area (sf) CN Description 1,600 83 Paved roads w/open ditches, 50% imp, HSG A 800 50.00% Pervious Area 800 50.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, NRCC 24-hr C 10-Year Rainfall=4.95"725MainSt_PostDevelopment Printed 1/10/2023Prepared by Apex Companies Page 12HydroCAD® 10.20-2g s/n 04044 © 2022 HydroCAD Software Solutions LLC Summary for Pond 3P: Cultec Inflow Area = 0.111 ac,100.00% Impervious, Inflow Depth = 4.71" for 10-Year event Inflow = 0.57 cfs @ 12.13 hrs, Volume= 0.044 af Outflow = 0.57 cfs @ 12.13 hrs, Volume= 0.044 af, Atten= 0%, Lag= 0.0 min Discarded = 0.57 cfs @ 12.13 hrs, Volume= 0.044 af Primary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routed to Link 4L : Connection to existing drainage Routing by Stor-Ind method, Time Span= 0.00-48.00 hrs, dt= 0.01 hrs Peak Elev= 15.80' @ 12.13 hrs Surf.Area= 0.009 ac Storage= 0.000 af Plug-Flow detention time= 0.0 min calculated for 0.044 af (100% of inflow) Center-of-Mass det. time= 0.0 min ( 749.5 - 749.5 ) Volume Invert Avail.Storage Storage Description #1A 15.80' 0.008 af 16.00'W x 24.50'L x 3.54'H Stone 0.032 af Overall - 0.012 af Embedded = 0.020 af x 40.0% Voids #2A 16.30' 0.012 af Cultec R-330XLHD x 9 Inside #1 Effective Size= 47.8"W x 30.0"H => 7.45 sf x 7.00'L = 52.2 cf Overall Size= 52.0"W x 30.5"H x 8.50'L with 1.50' Overlap Row Length Adjustment= +1.50' x 7.45 sf x 3 rows 0.020 af Total Available Storage Storage Group A created with Chamber Wizard Device Routing Invert Outlet Devices #1 Discarded 15.80'6.00 cfs Exfiltration at all elevations #2 Primary 18.80'6.0" Round Outlet to Storm Drain L= 8.0' Ke= 0.200 Inlet / Outlet Invert= 18.80' / 0.00' S= 2.3500 '/' Cc= 0.900 n= 0.010 PVC, smooth interior, Flow Area= 0.20 sf Discarded OutFlow Max=6.00 cfs @ 12.13 hrs HW=15.80' (Free Discharge) 1=Exfiltration (Exfiltration Controls 6.00 cfs) Primary OutFlow Max=0.00 cfs @ 0.00 hrs HW=15.80' (Free Discharge) 2=Outlet to Storm Drain ( Controls 0.00 cfs) Summary for Pond 6P: Leaching CB Inflow Area = 0.036 ac,100.00% Impervious, Inflow Depth = 4.71" for 10-Year event Inflow = 0.18 cfs @ 12.13 hrs, Volume= 0.014 af Primary = 0.18 cfs @ 12.13 hrs, Volume= 0.014 af, Atten= 0%, Lag= 0.0 min Routing by Stor-Ind method, Time Span= 0.00-48.00 hrs, dt= 0.01 hrs NRCC 24-hr C 10-Year Rainfall=4.95"725MainSt_PostDevelopment Printed 1/10/2023Prepared by Apex Companies Page 13HydroCAD® 10.20-2g s/n 04044 © 2022 HydroCAD Software Solutions LLC Summary for Pond 8P: Infiltration Trenches Inflow Area = 0.037 ac, 50.00% Impervious, Inflow Depth = 3.13" for 10-Year event Inflow = 0.14 cfs @ 12.13 hrs, Volume= 0.010 af Outflow = 0.50 cfs @ 0.00 hrs, Volume= 1.984 af, Atten= 0%, Lag= 0.0 min Primary = 0.50 cfs @ 0.00 hrs, Volume= 1.984 af Routed to Link 9L : Offsite Routing by Stor-Ind method, Time Span= 0.00-48.00 hrs, dt= 0.01 hrs Peak Elev= 0.00' @ 0.00 hrs Flood Elev= 19.00' Device Routing Invert Outlet Devices #1 Primary 0.00'0.50 cfs Exfiltration at all elevations Primary OutFlow Max=0.50 cfs @ 0.00 hrs HW=0.00' (Free Discharge) 1=Exfiltration (Exfiltration Controls 0.50 cfs) Summary for Link 4L: Connection to existing drainage Inflow Area = 0.111 ac,100.00% Impervious, Inflow Depth = 0.00" for 10-Year event Inflow = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Primary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow, Time Span= 0.00-48.00 hrs, dt= 0.01 hrs Summary for Link 9L: Offsite Inflow Area = 0.037 ac, 50.00% Impervious, Inflow Depth > 648.13" for 10-Year event Inflow = 0.50 cfs @ 0.00 hrs, Volume= 1.984 af Primary = 0.50 cfs @ 0.00 hrs, Volume= 1.984 af, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow, Time Span= 0.00-48.00 hrs, dt= 0.01 hrs NRCC 24-hr C 25-Year Rainfall=5.92"725MainSt_PostDevelopment Printed 1/10/2023Prepared by Apex Companies Page 14HydroCAD® 10.20-2g s/n 04044 © 2022 HydroCAD Software Solutions LLC Time span=0.00-48.00 hrs, dt=0.01 hrs, 4801 points Runoff by SCS TR-20 method, UH=SCS, Weighted-CN Reach routing by Stor-Ind method - Pond routing by Stor-Ind method Runoff Area=4,850 sf 100.00% Impervious Runoff Depth=5.68"Subcatchment 2S: Pump Station Access Tc=6.0 min CN=98 Runoff=0.68 cfs 0.053 af Runoff Area=1,560 sf 100.00% Impervious Runoff Depth=5.68"Subcatchment 5S: Pump Station Roof Tc=6.0 min CN=98 Runoff=0.22 cfs 0.017 af Runoff Area=1,600 sf 50.00% Impervious Runoff Depth=4.02"Subcatchment 7S: Driveway Tc=6.0 min CN=83 Runoff=0.18 cfs 0.012 af Peak Elev=15.80' Storage=0.000 af Inflow=0.68 cfs 0.053 afPond 3P: Cultec Discarded=0.68 cfs 0.053 af Primary=0.00 cfs 0.000 af Outflow=0.68 cfs 0.053 af Inflow=0.22 cfs 0.017 afPond 6P: Leaching CB Primary=0.22 cfs 0.017 af Peak Elev=0.00' Inflow=0.18 cfs 0.012 afPond 8P: Infiltration Trenches Outflow=0.50 cfs 1.984 af Inflow=0.00 cfs 0.000 afLink 4L: Connection to existing drainage Primary=0.00 cfs 0.000 af Inflow=0.50 cfs 1.984 afLink 9L: Offsite Primary=0.50 cfs 1.984 af Total Runoff Area = 0.184 ac Runoff Volume = 0.082 af Average Runoff Depth = 5.35" 9.99% Pervious = 0.018 ac 90.01% Impervious = 0.166 ac NRCC 24-hr C 25-Year Rainfall=5.92"725MainSt_PostDevelopment Printed 1/10/2023Prepared by Apex Companies Page 15HydroCAD® 10.20-2g s/n 04044 © 2022 HydroCAD Software Solutions LLC Summary for Subcatchment 2S: Pump Station Access Pavement Runoff = 0.68 cfs @ 12.13 hrs, Volume= 0.053 af, Depth= 5.68" Routed to Pond 3P : Cultec Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-48.00 hrs, dt= 0.01 hrs NRCC 24-hr C 25-Year Rainfall=5.92" Area (sf) CN Description 4,850 98 Paved parking, HSG A 4,850 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Direct Summary for Subcatchment 5S: Pump Station Roof Runoff = 0.22 cfs @ 12.13 hrs, Volume= 0.017 af, Depth= 5.68" Routed to Pond 6P : Leaching CB Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-48.00 hrs, dt= 0.01 hrs NRCC 24-hr C 25-Year Rainfall=5.92" Area (sf) CN Description 1,560 98 Roofs, HSG A 1,560 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Summary for Subcatchment 7S: Driveway Runoff = 0.18 cfs @ 12.13 hrs, Volume= 0.012 af, Depth= 4.02" Routed to Pond 8P : Infiltration Trenches Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-48.00 hrs, dt= 0.01 hrs NRCC 24-hr C 25-Year Rainfall=5.92" Area (sf) CN Description 1,600 83 Paved roads w/open ditches, 50% imp, HSG A 800 50.00% Pervious Area 800 50.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, NRCC 24-hr C 25-Year Rainfall=5.92"725MainSt_PostDevelopment Printed 1/10/2023Prepared by Apex Companies Page 16HydroCAD® 10.20-2g s/n 04044 © 2022 HydroCAD Software Solutions LLC Summary for Pond 3P: Cultec Inflow Area = 0.111 ac,100.00% Impervious, Inflow Depth = 5.68" for 25-Year event Inflow = 0.68 cfs @ 12.13 hrs, Volume= 0.053 af Outflow = 0.68 cfs @ 12.13 hrs, Volume= 0.053 af, Atten= 0%, Lag= 0.0 min Discarded = 0.68 cfs @ 12.13 hrs, Volume= 0.053 af Primary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routed to Link 4L : Connection to existing drainage Routing by Stor-Ind method, Time Span= 0.00-48.00 hrs, dt= 0.01 hrs Peak Elev= 15.80' @ 12.13 hrs Surf.Area= 0.009 ac Storage= 0.000 af Plug-Flow detention time= 0.0 min calculated for 0.053 af (100% of inflow) Center-of-Mass det. time= 0.0 min ( 746.5 - 746.5 ) Volume Invert Avail.Storage Storage Description #1A 15.80' 0.008 af 16.00'W x 24.50'L x 3.54'H Stone 0.032 af Overall - 0.012 af Embedded = 0.020 af x 40.0% Voids #2A 16.30' 0.012 af Cultec R-330XLHD x 9 Inside #1 Effective Size= 47.8"W x 30.0"H => 7.45 sf x 7.00'L = 52.2 cf Overall Size= 52.0"W x 30.5"H x 8.50'L with 1.50' Overlap Row Length Adjustment= +1.50' x 7.45 sf x 3 rows 0.020 af Total Available Storage Storage Group A created with Chamber Wizard Device Routing Invert Outlet Devices #1 Discarded 15.80'6.00 cfs Exfiltration at all elevations #2 Primary 18.80'6.0" Round Outlet to Storm Drain L= 8.0' Ke= 0.200 Inlet / Outlet Invert= 18.80' / 0.00' S= 2.3500 '/' Cc= 0.900 n= 0.010 PVC, smooth interior, Flow Area= 0.20 sf Discarded OutFlow Max=6.00 cfs @ 12.13 hrs HW=15.80' (Free Discharge) 1=Exfiltration (Exfiltration Controls 6.00 cfs) Primary OutFlow Max=0.00 cfs @ 0.00 hrs HW=15.80' (Free Discharge) 2=Outlet to Storm Drain ( Controls 0.00 cfs) Summary for Pond 6P: Leaching CB Inflow Area = 0.036 ac,100.00% Impervious, Inflow Depth = 5.68" for 25-Year event Inflow = 0.22 cfs @ 12.13 hrs, Volume= 0.017 af Primary = 0.22 cfs @ 12.13 hrs, Volume= 0.017 af, Atten= 0%, Lag= 0.0 min Routing by Stor-Ind method, Time Span= 0.00-48.00 hrs, dt= 0.01 hrs NRCC 24-hr C 25-Year Rainfall=5.92"725MainSt_PostDevelopment Printed 1/10/2023Prepared by Apex Companies Page 17HydroCAD® 10.20-2g s/n 04044 © 2022 HydroCAD Software Solutions LLC Summary for Pond 8P: Infiltration Trenches Inflow Area = 0.037 ac, 50.00% Impervious, Inflow Depth = 4.02" for 25-Year event Inflow = 0.18 cfs @ 12.13 hrs, Volume= 0.012 af Outflow = 0.50 cfs @ 0.00 hrs, Volume= 1.984 af, Atten= 0%, Lag= 0.0 min Primary = 0.50 cfs @ 0.00 hrs, Volume= 1.984 af Routed to Link 9L : Offsite Routing by Stor-Ind method, Time Span= 0.00-48.00 hrs, dt= 0.01 hrs Peak Elev= 0.00' @ 0.00 hrs Flood Elev= 19.00' Device Routing Invert Outlet Devices #1 Primary 0.00'0.50 cfs Exfiltration at all elevations Primary OutFlow Max=0.50 cfs @ 0.00 hrs HW=0.00' (Free Discharge) 1=Exfiltration (Exfiltration Controls 0.50 cfs) Summary for Link 4L: Connection to existing drainage Inflow Area = 0.111 ac,100.00% Impervious, Inflow Depth = 0.00" for 25-Year event Inflow = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Primary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow, Time Span= 0.00-48.00 hrs, dt= 0.01 hrs Summary for Link 9L: Offsite Inflow Area = 0.037 ac, 50.00% Impervious, Inflow Depth > 648.13" for 25-Year event Inflow = 0.50 cfs @ 0.00 hrs, Volume= 1.984 af Primary = 0.50 cfs @ 0.00 hrs, Volume= 1.984 af, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow, Time Span= 0.00-48.00 hrs, dt= 0.01 hrs NRCC 24-hr C 100-Year Rainfall=7.41"725MainSt_PostDevelopment Printed 1/10/2023Prepared by Apex Companies Page 18HydroCAD® 10.20-2g s/n 04044 © 2022 HydroCAD Software Solutions LLC Time span=0.00-48.00 hrs, dt=0.01 hrs, 4801 points Runoff by SCS TR-20 method, UH=SCS, Weighted-CN Reach routing by Stor-Ind method - Pond routing by Stor-Ind method Runoff Area=4,850 sf 100.00% Impervious Runoff Depth=7.17"Subcatchment 2S: Pump Station Access Tc=6.0 min CN=98 Runoff=0.85 cfs 0.067 af Runoff Area=1,560 sf 100.00% Impervious Runoff Depth=7.17"Subcatchment 5S: Pump Station Roof Tc=6.0 min CN=98 Runoff=0.27 cfs 0.021 af Runoff Area=1,600 sf 50.00% Impervious Runoff Depth=5.42"Subcatchment 7S: Driveway Tc=6.0 min CN=83 Runoff=0.24 cfs 0.017 af Peak Elev=15.81' Storage=0.000 af Inflow=0.85 cfs 0.067 afPond 3P: Cultec Discarded=0.85 cfs 0.067 af Primary=0.00 cfs 0.000 af Outflow=0.85 cfs 0.067 af Inflow=0.27 cfs 0.021 afPond 6P: Leaching CB Primary=0.27 cfs 0.021 af Peak Elev=0.00' Inflow=0.24 cfs 0.017 afPond 8P: Infiltration Trenches Outflow=0.50 cfs 1.984 af Inflow=0.00 cfs 0.000 afLink 4L: Connection to existing drainage Primary=0.00 cfs 0.000 af Inflow=0.50 cfs 1.984 afLink 9L: Offsite Primary=0.50 cfs 1.984 af Total Runoff Area = 0.184 ac Runoff Volume = 0.105 af Average Runoff Depth = 6.82" 9.99% Pervious = 0.018 ac 90.01% Impervious = 0.166 ac NRCC 24-hr C 100-Year Rainfall=7.41"725MainSt_PostDevelopment Printed 1/10/2023Prepared by Apex Companies Page 19HydroCAD® 10.20-2g s/n 04044 © 2022 HydroCAD Software Solutions LLC Summary for Subcatchment 2S: Pump Station Access Pavement Runoff = 0.85 cfs @ 12.13 hrs, Volume= 0.067 af, Depth= 7.17" Routed to Pond 3P : Cultec Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-48.00 hrs, dt= 0.01 hrs NRCC 24-hr C 100-Year Rainfall=7.41" Area (sf) CN Description 4,850 98 Paved parking, HSG A 4,850 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Direct Summary for Subcatchment 5S: Pump Station Roof Runoff = 0.27 cfs @ 12.13 hrs, Volume= 0.021 af, Depth= 7.17" Routed to Pond 6P : Leaching CB Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-48.00 hrs, dt= 0.01 hrs NRCC 24-hr C 100-Year Rainfall=7.41" Area (sf) CN Description 1,560 98 Roofs, HSG A 1,560 100.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, Summary for Subcatchment 7S: Driveway Runoff = 0.24 cfs @ 12.13 hrs, Volume= 0.017 af, Depth= 5.42" Routed to Pond 8P : Infiltration Trenches Runoff by SCS TR-20 method, UH=SCS, Weighted-CN, Time Span= 0.00-48.00 hrs, dt= 0.01 hrs NRCC 24-hr C 100-Year Rainfall=7.41" Area (sf) CN Description 1,600 83 Paved roads w/open ditches, 50% imp, HSG A 800 50.00% Pervious Area 800 50.00% Impervious Area Tc Length Slope Velocity Capacity Description (min) (feet) (ft/ft) (ft/sec) (cfs) 6.0 Direct Entry, NRCC 24-hr C 100-Year Rainfall=7.41"725MainSt_PostDevelopment Printed 1/10/2023Prepared by Apex Companies Page 20HydroCAD® 10.20-2g s/n 04044 © 2022 HydroCAD Software Solutions LLC Summary for Pond 3P: Cultec Inflow Area = 0.111 ac,100.00% Impervious, Inflow Depth = 7.17" for 100-Year event Inflow = 0.85 cfs @ 12.13 hrs, Volume= 0.067 af Outflow = 0.85 cfs @ 12.13 hrs, Volume= 0.067 af, Atten= 0%, Lag= 0.0 min Discarded = 0.85 cfs @ 12.13 hrs, Volume= 0.067 af Primary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Routed to Link 4L : Connection to existing drainage Routing by Stor-Ind method, Time Span= 0.00-48.00 hrs, dt= 0.01 hrs Peak Elev= 15.81' @ 12.13 hrs Surf.Area= 0.009 ac Storage= 0.000 af Plug-Flow detention time= 0.0 min calculated for 0.067 af (100% of inflow) Center-of-Mass det. time= 0.0 min ( 743.1 - 743.1 ) Volume Invert Avail.Storage Storage Description #1A 15.80' 0.008 af 16.00'W x 24.50'L x 3.54'H Stone 0.032 af Overall - 0.012 af Embedded = 0.020 af x 40.0% Voids #2A 16.30' 0.012 af Cultec R-330XLHD x 9 Inside #1 Effective Size= 47.8"W x 30.0"H => 7.45 sf x 7.00'L = 52.2 cf Overall Size= 52.0"W x 30.5"H x 8.50'L with 1.50' Overlap Row Length Adjustment= +1.50' x 7.45 sf x 3 rows 0.020 af Total Available Storage Storage Group A created with Chamber Wizard Device Routing Invert Outlet Devices #1 Discarded 15.80'6.00 cfs Exfiltration at all elevations #2 Primary 18.80'6.0" Round Outlet to Storm Drain L= 8.0' Ke= 0.200 Inlet / Outlet Invert= 18.80' / 0.00' S= 2.3500 '/' Cc= 0.900 n= 0.010 PVC, smooth interior, Flow Area= 0.20 sf Discarded OutFlow Max=6.00 cfs @ 12.13 hrs HW=15.81' (Free Discharge) 1=Exfiltration (Exfiltration Controls 6.00 cfs) Primary OutFlow Max=0.00 cfs @ 0.00 hrs HW=15.80' (Free Discharge) 2=Outlet to Storm Drain ( Controls 0.00 cfs) Summary for Pond 6P: Leaching CB Inflow Area = 0.036 ac,100.00% Impervious, Inflow Depth = 7.17" for 100-Year event Inflow = 0.27 cfs @ 12.13 hrs, Volume= 0.021 af Primary = 0.27 cfs @ 12.13 hrs, Volume= 0.021 af, Atten= 0%, Lag= 0.0 min Routing by Stor-Ind method, Time Span= 0.00-48.00 hrs, dt= 0.01 hrs NRCC 24-hr C 100-Year Rainfall=7.41"725MainSt_PostDevelopment Printed 1/10/2023Prepared by Apex Companies Page 21HydroCAD® 10.20-2g s/n 04044 © 2022 HydroCAD Software Solutions LLC Summary for Pond 8P: Infiltration Trenches Inflow Area = 0.037 ac, 50.00% Impervious, Inflow Depth = 5.42" for 100-Year event Inflow = 0.24 cfs @ 12.13 hrs, Volume= 0.017 af Outflow = 0.50 cfs @ 0.00 hrs, Volume= 1.984 af, Atten= 0%, Lag= 0.0 min Primary = 0.50 cfs @ 0.00 hrs, Volume= 1.984 af Routed to Link 9L : Offsite Routing by Stor-Ind method, Time Span= 0.00-48.00 hrs, dt= 0.01 hrs Peak Elev= 0.00' @ 0.00 hrs Flood Elev= 19.00' Device Routing Invert Outlet Devices #1 Primary 0.00'0.50 cfs Exfiltration at all elevations Primary OutFlow Max=0.50 cfs @ 0.00 hrs HW=0.00' (Free Discharge) 1=Exfiltration (Exfiltration Controls 0.50 cfs) Summary for Link 4L: Connection to existing drainage Inflow Area = 0.111 ac,100.00% Impervious, Inflow Depth = 0.00" for 100-Year event Inflow = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af Primary = 0.00 cfs @ 0.00 hrs, Volume= 0.000 af, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow, Time Span= 0.00-48.00 hrs, dt= 0.01 hrs Summary for Link 9L: Offsite Inflow Area = 0.037 ac, 50.00% Impervious, Inflow Depth > 648.13" for 100-Year event Inflow = 0.50 cfs @ 0.00 hrs, Volume= 1.984 af Primary = 0.50 cfs @ 0.00 hrs, Volume= 1.984 af, Atten= 0%, Lag= 0.0 min Primary outflow = Inflow, Time Span= 0.00-48.00 hrs, dt= 0.01 hrs