Revised Stormwater Management Report

POA 2 proposed 2024-05-12 HydroCad - Proposed POA 2 NOAA 24-hr D 2-Year Rainfall=3.44" Prepared by Anderson Consulting Services Printed 6/29/2024 Page 60 HydroCAD® 10.20-5a s/n 06666 © 2023 HydroCAD Software Solutions LLC Stage-Discharge for Pond 41P: Basin 10 Elevation (feet) 576.00 576.05 576.10 576.15 576.20 576.25 576.30 576.35 576.40 576.45 576.50 576.55 576.60 576.65 576.70 576.75 576.80 576.85 576.90 576.95 577.00 577.05 577.10 577.15 577.20 577.25 577.30 577.35 577.40 577.45 577.50 577.55 577.60 577.65 577.70 577.75 577.80 577.85 577.90 577.95 578.00 578.05 578.10 578.15 578.20 578.25 578.30 578.35 578.40 578.45 578.50 Discharge (cfs) 0.00 2.22 2.22 2.22 3.32 5.32 7.92 10.99 14.48 18.34 22.53 27.04 31.83 36.90 42.23 47.81 53.63 59.67 65.94 72.41 79.10 85.98 93.05 100.32 107.77 115.40 123.20 131.17 139.32 147.62 156.09 161.74 164.56 167.34 170.07 172.75 175.40 178.00 180.57 183.10 185.59 188.05 190.48 192.88 195.25 197.59 199.90 202.19 204.45 206.68 208.89 Discarded (cfs) 0.00 2.22 2.22 2.22 2.22 2.22 2.22 2.22 2.22 2.22 2.22 2.22 2.22 2.22 2.22 2.22 2.22 2.22 2.22 2.22 2.22 2.22 2.22 2.22 2.22 2.22 2.22 2.22 2.22 2.22 2.22 2.22 2.22 2.22 2.22 2.22 2.22 2.22 2.22 2.22 2.22 2.22 2.22 2.22 2.22 2.22 2.22 2.22 2.22 2.22 2.22 Primary (cfs) 0.00 0.00 0.00 0.00 1.10 3.10 5.70 8.77 12.26 16.12 20.31 24.82 29.61 34.68 40.01 45.59 51.41 57.45 63.72 70.19 76.88 83.76 90.84 98.10 105.55 113.18 120.98 128.96 137.10 145.41 153.88 159.52 162.34 165.12 167.85 170.53 173.18 175.78 178.35 180.88 183.37 185.84 188.26 190.66 193.03 195.37 197.68 199.97 202.23 204.46 206.67 Elevation (feet) 578.55 578.60 578.65 578.70 578.75 578.80 578.85 578.90 578.95 579.00 Discharge (cfs) 211.08 213.24 215.39 217.51 219.61 221.69 223.75 225.79 227.81 229.82 Discarded (cfs) 2.22 2.22 2.22 2.22 2.22 2.22 2.22 2.22 2.22 2.22 Primary (cfs) 208.86 211.03 213.17 215.29 217.39 219.47 221.53 223.57 225.60 227.60

POA 2 proposed 2024-05-12 HydroCad - Proposed POA 2 NOAA 24-hr D 2-Year Rainfall=3.44" Prepared by Anderson Consulting Services Printed 6/29/2024 Page 61 HydroCAD® 10.20-5a s/n 06666 © 2023 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 41P: Basin 10 Elevation (feet) 576.00 576.05 576.10 576.15 576.20 576.25 576.30 576.35 576.40 576.45 576.50 576.55 576.60 576.65 576.70 576.75 576.80 576.85 576.90 576.95 577.00 577.05 577.10 577.15 577.20 577.25 577.30 577.35 577.40 577.45 577.50 577.55 577.60 577.65 577.70 577.75 577.80 577.85 577.90 577.95 578.00 578.05 578.10 578.15 578.20 578.25 578.30 578.35 578.40 578.45 578.50 Surface (sq-ft) 9,583 9,583 9,583 9,583 9,583 9,583 9,583 9,583 9,583 9,583 9,583 9,583 9,583 9,583 9,583 9,583 9,583 9,583 9,583 9,583 9,583 9,583 9,583 9,583 9,583 9,583 9,583 9,583 9,583 9,583 9,583 9,583 9,583 9,583 9,583 9,583 9,583 9,583 9,583 9,583 9,583 9,583 9,583 9,583 9,583 9,583 9,583 9,583 9,583 9,583 9,583 Storage (cubic-feet) 0 479 958 1,437 1,917 2,396 2,875 3,354 3,833 4,312 4,792 5,271 5,750 6,229 6,708 7,187 7,666 8,146 8,625 9,104 9,583 10,062 10,541 11,020 11,500 11,979 12,458 12,937 13,416 13,895 14,375 14,854 15,333 15,812 16,291 16,770 17,249 17,729 18,208 18,687 19,166 19,645 20,124 20,603 21,083 21,562 22,041 22,520 22,999 23,478 23,958 Elevation (feet) 578.55 578.60 578.65 578.70 578.75 578.80 578.85 578.90 578.95 579.00 Surface (sq-ft) 9,583 9,583 9,583 9,583 9,583 9,583 9,583 9,583 9,583 9,583 Storage (cubic-feet) 24,437 24,916 25,395 25,874 26,353 26,832 27,312 27,791 28,270 28,749

POA 2 proposed 2024-05-12 HydroCad - Proposed POA 2 NOAA 24-hr D 2-Year Rainfall=3.44" Prepared by Anderson Consulting Services Printed 6/29/2024 Page 62 HydroCAD® 10.20-5a s/n 06666 © 2023 HydroCAD Software Solutions LLC Summary for Pond 42P: Basin 9 Inflow Area = 25,049 sf, 64.41% Impervious, Inflow Depth = 2.58" for 2-Year event Inflow = 1.46 cfs @ 12.14 hrs, Volume= 5,390 cf Outflow = 0.61 cfs @ 12.00 hrs, Volume= 5,390 cf, Atten= 59%, Lag= 0.0 min Discarded = 0.61 cfs @ 12.00 hrs, Volume= 5,390 cf Primary = 0.00 cfs @ 0.00 hrs, Volume= 0 cf Routed to Link 28L : POA 2 Routing by Stor-Ind method, Time Span= 0.00-80.00 hrs, dt= 0.04 hrs Peak Elev= 562.21' @ 12.31 hrs Surf.Area= 6,534 sf Storage= 557 cf Plug-Flow detention time= 4.3 min calculated for 5,387 cf (100% of inflow) Center-of-Mass det. time= 4.3 min ( 782.3 - 778.0 ) Volume #1 Invert 562.00' Elevation (feet) 562.00 563.00 564.00 564.42 Device #1 #2 #3 Avail.Storage 6,325 cf Surf.Area (sq-ft) 6,534 6,534 6,534 6,534 Routing Primary Primary Discarded Invert 564.00' 563.00' 562.00' Storage Description Custom Stage Data (Prismatic) Listed below (Recalc) 15,812 cf Overall x 40.0% Voids Inc.Store (cubic-feet) 0 6,534 6,534 2,744 Cum.Store (cubic-feet) 0 6,534 13,068 15,812 Outlet Devices 4.0' long Sharp-Crested Rectangular Weir 2 End Contraction(s) 3.0" Vert. Orifice C= 0.600 Limited to weir flow at low heads 4.000 in/hr Exfiltration over Surface area Discarded OutFlow Max=0.61 cfs @ 12.00 hrs HW=562.03' (Free Discharge) 3=Exfiltration (Exfiltration Controls 0.61 cfs) Primary OutFlow Max=0.00 cfs @ 0.00 hrs HW=562.00' (Free Discharge) 1=Sharp-Crested Rectangular Weir ( Controls 0.00 cfs) 2=Orifice ( Controls 0.00 cfs)

POA 2 proposed 2024-05-12 HydroCad - Proposed POA 2 NOAA 24-hr D 2-Year Rainfall=3.44" Prepared by Anderson Consulting Services Printed 6/29/2024 Page 63 HydroCAD® 10.20-5a s/n 06666 © 2023 HydroCAD Software Solutions LLC Pond 42P: Basin 9 Hydrograph Flow (cfs) 1.46 cfs Inflow Area=25,049 sf Peak Elev=562.21' Storage=557 cf Inflow Outflow Discarded Primary 1 0.61 cfs 0.61 cfs 0.00 cfs 0 0 5 10 15 20 25 30 35 40 45 Time (hours) 50 55 60 65 70 75 80 Pond 42P: Basin 9 Stage-Discharge Total Discarded Primary Sharp-Crested Rectangular Weir Elevation (feet) 564 Orifice 563 Exfiltration 562 0 1 2 Discharge (cfs) 3 4

POA 2 proposed 2024-05-12 HydroCad - Proposed POA 2 NOAA 24-hr D 2-Year Rainfall=3.44" Prepared by Anderson Consulting Services Printed 6/29/2024 Page 64 HydroCAD® 10.20-5a s/n 06666 © 2023 HydroCAD Software Solutions LLC Hydrograph for Pond 42P: Basin 9 Time (hours) 0.00 2.00 4.00 6.00 8.00 10.00 12.00 14.00 16.00 18.00 20.00 22.00 24.00 26.00 28.00 30.00 32.00 34.00 36.00 38.00 40.00 42.00 44.00 46.00 48.00 50.00 52.00 54.00 56.00 58.00 60.00 62.00 64.00 66.00 68.00 70.00 72.00 74.00 76.00 78.00 80.00 Inflow (cfs) 0.00 0.00 0.01 0.02 0.03 0.06 0.74 0.09 0.05 0.03 0.03 0.02 0.02 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Storage (cubic-feet) 0 0 1 2 3 6 69 9 5 3 3 3 2 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Elevation (feet) 562.00 562.00 562.00 562.00 562.00 562.00 562.03 562.00 562.00 562.00 562.00 562.00 562.00 562.00 562.00 562.00 562.00 562.00 562.00 562.00 562.00 562.00 562.00 562.00 562.00 562.00 562.00 562.00 562.00 562.00 562.00 562.00 562.00 562.00 562.00 562.00 562.00 562.00 562.00 562.00 562.00 Outflow (cfs) 0.00 0.00 0.01 0.02 0.03 0.06 0.61 0.09 0.05 0.03 0.03 0.02 0.02 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Discarded (cfs) 0.00 0.00 0.01 0.02 0.03 0.06 0.61 0.09 0.05 0.03 0.03 0.02 0.02 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Primary (cfs) 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00

POA 2 proposed 2024-05-12 HydroCad - Proposed POA 2 NOAA 24-hr D 2-Year Rainfall=3.44" Prepared by Anderson Consulting Services Printed 6/29/2024 Page 65 HydroCAD® 10.20-5a s/n 06666 © 2023 HydroCAD Software Solutions LLC Stage-Discharge for Pond 42P: Basin 9 Elevation (feet) 562.00 562.05 562.10 562.15 562.20 562.25 562.30 562.35 562.40 562.45 562.50 562.55 562.60 562.65 562.70 562.75 562.80 562.85 562.90 562.95 563.00 563.05 563.10 563.15 563.20 563.25 563.30 563.35 563.40 563.45 563.50 563.55 563.60 563.65 563.70 563.75 563.80 563.85 563.90 563.95 564.00 564.05 564.10 564.15 564.20 564.25 564.30 564.35 564.40 Discharge (cfs) 0.00 0.61 0.61 0.61 0.61 0.61 0.61 0.61 0.61 0.61 0.61 0.61 0.61 0.61 0.61 0.61 0.61 0.61 0.61 0.61 0.61 0.61 0.62 0.65 0.67 0.69 0.70 0.72 0.73 0.74 0.75 0.76 0.77 0.78 0.78 0.79 0.80 0.81 0.81 0.82 0.83 0.98 1.25 1.60 2.01 2.47 2.98 3.53 4.11 Discarded (cfs) 0.00 0.61 0.61 0.61 0.61 0.61 0.61 0.61 0.61 0.61 0.61 0.61 0.61 0.61 0.61 0.61 0.61 0.61 0.61 0.61 0.61 0.61 0.61 0.61 0.61 0.61 0.61 0.61 0.61 0.61 0.61 0.61 0.61 0.61 0.61 0.61 0.61 0.61 0.61 0.61 0.61 0.61 0.61 0.61 0.61 0.61 0.61 0.61 0.61 Primary (cfs) 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.01 0.02 0.04 0.06 0.08 0.10 0.11 0.12 0.13 0.14 0.15 0.16 0.17 0.18 0.19 0.19 0.20 0.21 0.21 0.22 0.37 0.64 0.99 1.40 1.87 2.37 2.92 3.51

POA 2 proposed 2024-05-12 HydroCad - Proposed POA 2 NOAA 24-hr D 2-Year Rainfall=3.44" Prepared by Anderson Consulting Services Printed 6/29/2024 Page 66 HydroCAD® 10.20-5a s/n 06666 © 2023 HydroCAD Software Solutions LLC Stage-Area-Storage for Pond 42P: Basin 9 Elevation (feet) 562.00 562.05 562.10 562.15 562.20 562.25 562.30 562.35 562.40 562.45 562.50 562.55 562.60 562.65 562.70 562.75 562.80 562.85 562.90 562.95 563.00 563.05 563.10 563.15 563.20 563.25 563.30 563.35 563.40 563.45 563.50 563.55 563.60 563.65 563.70 563.75 563.80 563.85 563.90 563.95 564.00 564.05 564.10 564.15 564.20 564.25 564.30 564.35 564.40 Surface (sq-ft) 6,534 6,534 6,534 6,534 6,534 6,534 6,534 6,534 6,534 6,534 6,534 6,534 6,534 6,534 6,534 6,534 6,534 6,534 6,534 6,534 6,534 6,534 6,534 6,534 6,534 6,534 6,534 6,534 6,534 6,534 6,534 6,534 6,534 6,534 6,534 6,534 6,534 6,534 6,534 6,534 6,534 6,534 6,534 6,534 6,534 6,534 6,534 6,534 6,534 Storage (cubic-feet) 0 131 261 392 523 653 784 915 1,045 1,176 1,307 1,437 1,568 1,699 1,830 1,960 2,091 2,222 2,352 2,483 2,614 2,744 2,875 3,006 3,136 3,267 3,398 3,528 3,659 3,790 3,920 4,051 4,182 4,312 4,443 4,574 4,704 4,835 4,966 5,097 5,227 5,358 5,489 5,619 5,750 5,881 6,011 6,142 6,273

POA 2 proposed 2024-05-12 HydroCad - Proposed POA 2 NOAA 24-hr D 2-Year Rainfall=3.44" Prepared by Anderson Consulting Services Printed 6/29/2024 Page 67 HydroCAD® 10.20-5a s/n 06666 © 2023 HydroCAD Software Solutions LLC Summary for Pond 48P: Basin 8 Inflow Area = 62,190 sf, 63.36% Impervious, Inflow Depth = 2.54" for 2-Year event Inflow = 3.43 cfs @ 12.16 hrs, Volume= 13,161 cf Outflow = 0.95 cfs @ 12.45 hrs, Volume= 13,161 cf, Atten= 72%, Lag= 17.4 min Discarded = 0.93 cfs @ 11.92 hrs, Volume= 13,131 cf Primary = 0.03 cfs @ 12.45 hrs, Volume= 31 cf Routed to Pond 49P : Basin 7 Routing by Stor-Ind method, Time Span= 0.00-80.00 hrs, dt= 0.04 hrs Peak Elev= 573.54' @ 12.45 hrs Surf.Area= 10,019 sf Storage= 2,179 cf Plug-Flow detention time= 11.7 min calculated for 13,155 cf (100% of inflow) Center-of-Mass det. time= 11.7 min ( 791.5 - 779.8 ) Volume #1 Invert 573.00' Elevation (feet) 573.00 574.00 575.00 576.00 Device #1 #2 #3 Avail.Storage 12,023 cf Surf.Area (sq-ft) 10,019 10,019 10,019 10,019 Routing Primary Primary Discarded Invert 575.00' 573.45' 573.00' Storage Description Custom Stage Data (Prismatic) Listed below (Recalc) 30,057 cf Overall x 40.0% Voids Inc.Store (cubic-feet) 0 10,019 10,019 10,019 Cum.Store (cubic-feet) 0 10,019 20,038 30,057 Outlet Devices 4.0' long Sharp-Crested Rectangular Weir 2 End Contraction(s) 6.0" Vert. Orifice C= 0.600 Limited to weir flow at low heads 4.000 in/hr Exfiltration over Surface area Discarded OutFlow Max=0.93 cfs @ 11.92 hrs HW=573.03' (Free Discharge) 3=Exfiltration (Exfiltration Controls 0.93 cfs) Primary OutFlow Max=0.03 cfs @ 12.45 hrs HW=573.54' (Free Discharge) 1=Sharp-Crested Rectangular Weir ( Controls 0.00 cfs) 2=Orifice (Orifice Controls 0.03 cfs @ 1.04 fps)

POA 2 proposed 2024-05-12 HydroCad - Proposed POA 2 NOAA 24-hr D 2-Year Rainfall=3.44" Prepared by Anderson Consulting Services Printed 6/29/2024 Page 68 HydroCAD® 10.20-5a s/n 06666 © 2023 HydroCAD Software Solutions LLC Pond 48P: Basin 8 Hydrograph 3.43 cfs Inflow Area=62,190 sf Peak Elev=573.54' Storage=2,179 cf Flow (cfs) 3 Inflow Outflow Discarded Primary 2 0.95 cfs 0.93 cfs 1 0.03 cfs 0 0 5 10 15 20 25 30 35 40 45 Time (hours) 50 55 60 65 70 75 80 Pond 48P: Basin 8 Stage-Discharge Total Discarded Primary 576 Sharp-Crested Rectangular Weir Elevation (feet) 575 574 Orifice Exfiltration 573 0 1 2 3 4 5 6 7 8 Discharge (cfs) 9 10 11 12 13 14

POA 2 proposed 2024-05-12 HydroCad - Proposed POA 2 NOAA 24-hr D 2-Year Rainfall=3.44" Prepared by Anderson Consulting Services Printed 6/29/2024 Page 69 HydroCAD® 10.20-5a s/n 06666 © 2023 HydroCAD Software Solutions LLC Hydrograph for Pond 48P: Basin 8 Time (hours) 0.00 2.00 4.00 6.00 8.00 10.00 12.00 14.00 16.00 18.00 20.00 22.00 24.00 26.00 28.00 30.00 32.00 34.00 36.00 38.00 40.00 42.00 44.00 46.00 48.00 50.00 52.00 54.00 56.00 58.00 60.00 62.00 64.00 66.00 68.00 70.00 72.00 74.00 76.00 78.00 80.00 Inflow (cfs) 0.00 0.01 0.03 0.04 0.07 0.14 1.65 0.21 0.12 0.08 0.07 0.06 0.05 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Storage (cubic-feet) 0 1 4 6 9 17 261 28 16 11 9 8 6 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 Elevation (feet) 573.00 573.00 573.00 573.00 573.00 573.00 573.07 573.01 573.00 573.00 573.00 573.00 573.00 573.00 573.00 573.00 573.00 573.00 573.00 573.00 573.00 573.00 573.00 573.00 573.00 573.00 573.00 573.00 573.00 573.00 573.00 573.00 573.00 573.00 573.00 573.00 573.00 573.00 573.00 573.00 573.00 Outflow (cfs) 0.00 0.01 0.03 0.04 0.07 0.13 0.93 0.22 0.12 0.08 0.07 0.06 0.05 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Discarded (cfs) 0.00 0.01 0.03 0.04 0.07 0.13 0.93 0.22 0.12 0.08 0.07 0.06 0.05 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 Primary (cfs) 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00 0.00