complete drainage report rev 9

POA-2 2024-05-12 HydroCad - Proposed POA 2B-1 Multi-Event Tables Prepared by Anderson Consulting Services Printed 10/25/2024 Page 427 HydroCAD® 10.20-5c s/n 06666 © 2023 HydroCAD Software Solutions LLC Events for Subcatchment 25S: Basin 2 - Perv Event Rainfall (inches) 2-Year 10-Year 100-Year WQ 3.44 5.22 8.66 1.25 Runoff (cfs) 2.54 5.19 10.70 0.45 Volume Depth (cubic-feet) (inches) 9,502 19,249 40,328 802 1.39 2.81 5.88 0.12

POA-2 2024-05-12 HydroCad - Proposed POA 2B-1 Multi-Event Tables Prepared by Anderson Consulting Services Printed 10/25/2024 Page 428 HydroCAD® 10.20-5c s/n 06666 © 2023 HydroCAD Software Solutions LLC Events for Subcatchment 28S: Basin 2 - Imp Event Rainfall (inches) 2-Year 10-Year 100-Year WQ 3.44 5.22 8.66 1.25 Runoff (cfs) 1.91 2.92 4.86 1.76 Volume Depth (cubic-feet) (inches) 8,063 12,529 21,171 2,601 3.21 4.98 8.42 1.03

POA-2 2024-05-12 HydroCad - Proposed POA 2B-1 Multi-Event Tables Prepared by Anderson Consulting Services Printed 10/25/2024 Page 429 HydroCAD® 10.20-5c s/n 06666 © 2023 HydroCAD Software Solutions LLC Events for Subcatchment 29S: Basin 8 - Imp Event Rainfall (inches) 2-Year 10-Year 100-Year WQ 3.44 5.22 8.66 1.25 Runoff (cfs) 2.60 3.97 6.60 2.37 Volume Depth (cubic-feet) (inches) 10,223 15,886 26,843 3,298 3.21 4.98 8.42 1.03

POA-2 2024-05-12 HydroCad - Proposed POA 2B-1 Multi-Event Tables Prepared by Anderson Consulting Services Printed 10/25/2024 Page 430 HydroCAD® 10.20-5c s/n 06666 © 2023 HydroCAD Software Solutions LLC Events for Subcatchment 30S: Basin 8 - Perv Event Rainfall (inches) 2-Year 10-Year 100-Year WQ 3.44 5.22 8.66 1.25 Runoff (cfs) 0.76 1.55 3.19 0.13 Volume Depth (cubic-feet) (inches) 2,632 5,332 11,171 222 1.39 2.81 5.88 0.12

POA-2 2024-05-12 HydroCad - Proposed POA 2B-1 Multi-Event Tables Prepared by Anderson Consulting Services Printed 10/25/2024 Page 431 HydroCAD® 10.20-5c s/n 06666 © 2023 HydroCAD Software Solutions LLC Events for Subcatchment 31S: Basin 7 - Imp Event Rainfall (inches) 2-Year 10-Year 100-Year WQ 3.44 5.22 8.66 1.25 Runoff (cfs) 2.74 4.18 6.97 2.53 Volume Depth (cubic-feet) (inches) 12,233 19,009 32,120 3,947 3.21 4.98 8.42 1.03

POA-2 2024-05-12 HydroCad - Proposed POA 2B-1 Multi-Event Tables Prepared by Anderson Consulting Services Printed 10/25/2024 Page 432 HydroCAD® 10.20-5c s/n 06666 © 2023 HydroCAD Software Solutions LLC Events for Subcatchment 32S: Basin 7 - Perv Event Rainfall (inches) 2-Year 10-Year 100-Year WQ 3.44 5.22 8.66 1.25 Runoff (cfs) 1.70 3.49 7.20 0.29 Volume Depth (cubic-feet) (inches) 6,778 13,731 28,767 572 1.39 2.81 5.88 0.12

POA-2 2024-05-12 HydroCad - Proposed POA 2B-1 Multi-Event Tables Prepared by Anderson Consulting Services Printed 10/25/2024 Page 433 HydroCAD® 10.20-5c s/n 06666 © 2023 HydroCAD Software Solutions LLC Events for Subcatchment 35S: DA 2 Und - Imp Event Rainfall (inches) 2-Year 10-Year 100-Year WQ 3.44 5.22 8.66 1.25 Runoff (cfs) 3.41 5.21 8.68 3.13 Volume Depth (cubic-feet) (inches) 14,033 21,805 36,846 4,527 3.21 4.98 8.42 1.03

POA-2 2024-05-12 HydroCad - Proposed POA 2B-1 Multi-Event Tables Prepared by Anderson Consulting Services Printed 10/25/2024 Page 434 HydroCAD® 10.20-5c s/n 06666 © 2023 HydroCAD Software Solutions LLC Events for Subcatchment 36S: DA 2 Und - Perv Event Rainfall (inches) 2-Year 10-Year 100-Year WQ 3.44 5.22 8.66 1.25 Runoff (cfs) 3.80 7.79 16.02 0.66 Volume Depth (cubic-feet) (inches) 13,855 28,070 58,807 1,170 1.39 2.81 5.88 0.12

POA-2 2024-05-12 HydroCad - Proposed POA 2B-1 Multi-Event Tables Prepared by Anderson Consulting Services Printed 10/25/2024 Page 435 HydroCAD® 10.20-5c s/n 06666 © 2023 HydroCAD Software Solutions LLC Events for Subcatchment 45S: Basin 11 - Imp Event Rainfall (inches) 2-Year 10-Year 100-Year WQ 3.44 5.22 8.66 1.25 Runoff (cfs) 3.89 5.95 9.90 3.57 Volume Depth (cubic-feet) (inches) 16,007 24,873 42,030 5,164 3.21 4.98 8.42 1.03

POA-2 2024-05-12 HydroCad - Proposed POA 2B-1 Multi-Event Tables Prepared by Anderson Consulting Services Printed 10/25/2024 Page 436 HydroCAD® 10.20-5c s/n 06666 © 2023 HydroCAD Software Solutions LLC Events for Subcatchment 46S: Basin 11 - Perv Event Rainfall (inches) 2-Year 10-Year 100-Year WQ 3.44 5.22 8.66 1.25 Runoff (cfs) 0.73 1.52 3.18 0.11 Volume Depth (cubic-feet) (inches) 2,666 5,482 11,621 204 1.32 2.72 5.76 0.10