V3 RESUBMISSION Stormwater Management Report Rev 2 Dated November 3 2022

19 Hydrograph Report Hydraflow Hydrographs Extension for Autodesk® Civil 3D® by Autodesk, Inc. v2023 Wednesday, 11 / 2 / 2022 Hyd. No. 9 DA-3 Hydrograph type = Combine Peak discharge = 8.718 cfs Storm frequency = 2 yrs Time to peak = 12.10 hrs Time interval = 3 min Hyd. volume = 36,895 cuft Inflow hyds. = 4, 5 Contrib. drain. area = 6.940 ac DA-3 Q (cfs) Q (cfs) Hyd. No. 9 -- 2 Year 10.00 10.00 8.00 8.00 6.00 6.00 4.00 4.00 2.00 2.00 0.00 0.00 0 3 6 9 12 15 18 21 24 27 Time (hrs) Hyd No. 9 Hyd No. 4 Hyd No. 5

20 Hydrograph Report Hydraflow Hydrographs Extension for Autodesk® Civil 3D® by Autodesk, Inc. v2023 Wednesday, 11 / 2 / 2022 Hyd. No. 10 DA-4 Hydrograph type = Combine Peak discharge = 3.173 cfs Storm frequency = 2 yrs Time to peak = 12.10 hrs Time interval = 3 min Hyd. volume = 16,944 cuft Inflow hyds. = 6, 7 Contrib. drain. area = 5.920 ac DA-4 Q (cfs) Q (cfs) Hyd. No. 10 -- 2 Year 4.00 4.00 3.00 3.00 2.00 2.00 1.00 1.00 0.00 0.00 0 3 6 9 12 15 18 21 24 27 Time (hrs) Hyd No. 10 Hyd No. 6 Hyd No. 7

21 Hydrograph Report Hydraflow Hydrographs Extension for Autodesk® Civil 3D® by Autodesk, Inc. v2023 Wednesday, 11 / 2 / 2022 Hyd. No. 11 Basin #3 Hydrograph type = Reservoir Peak discharge = 1.694 cfs Storm frequency = 2 yrs Time to peak = 12.25 hrs Time interval = 3 min Hyd. volume = 16,943 cuft Inflow hyd. No. = 10 - DA-4 Max. Elevation = 417.10 ft Reservoir name = Basin #3 Max. Storage = 2,468 cuft Storage Indication method used. Basin #3 Q (cfs) Q (cfs) Hyd. No. 11 -- 2 Year 4.00 4.00 3.00 3.00 2.00 2.00 1.00 1.00 0.00 0.00 0 3 6 9 12 15 18 21 24 27 Time (hrs) Hyd No. 11 Hyd No. 10 Total storage used = 2,468 cuft

22 Pond Report Hydraflow Hydrographs Extension for Autodesk® Civil 3D® by Autodesk, Inc. v2023 Wednesday, 11 / 2 / 2022 Pond No. 2 - Basin #3 Pond Data Contours -User-defined contour areas. Average end area method used for volume calculation. Begining Elevation = 416.00 ft Stage / Storage Table Stage (ft) Elevation (ft) Contour area (sqft) Incr. Storage (cuft) Total storage (cuft) 0.00 416.00 910 0 0 5.00 421.00 3,570 11,200 11,200 Culvert / Orifice Structures Weir Structures [A] [B] [C] [PrfRsr] [A] [B] [C] [D] Rise (in) = 4.00 6.00 8.00 0.00 Crest Len (ft) = 4.00 0.00 0.00 0.00 Span (in) = 10.00 10.00 10.00 0.00 Crest El. (ft) = 420.00 0.00 0.00 0.00 No. Barrels = 1 2 2 0 Weir Coeff. = 3.33 3.33 3.33 3.33 Invert El. (ft) = 416.00 417.00 418.00 0.00 Weir Type = Rect --- --- --- Length (ft) = 0.00 0.00 0.00 0.00 Multi-Stage = No No No No Slope (%) = 0.00 0.00 0.00 n/a N-Value = .013 .013 .013 n/a Orifice Coeff. = 0.60 0.60 0.60 0.60 Exfil.(in/hr) = 0.000 (by Wet area) Multi-Stage = n/a No No No TW Elev. (ft) = 0.00 Note:

= 0.000 (by Wet area) Multi-Stage = n/a No No No TW Elev. (ft) = 0.00 Note: Culvert/Orifice outflows are analyzed under inlet (ic) and outlet (oc) control. Weir risers checked for orifice conditions (ic) and submergence (s). Stage / Storage / Discharge Table Stage Storage Elevation Clv A Clv B Clv C PrfRsr Wr A Wr B Wr C Wr D Exfil User Total ft cuft ft cfs cfs cfs cfs cfs cfs cfs cfs cfs cfs cfs 0.00 0 416.00 0.00 0.00 0.00 --- 0.00 --- --- --- --- --- 0.000 5.00 11,200 421.00 2.94 ic 7.77 ic 8.74 ic --- 13.32 --- --- --- --- --- 32.77

23 Hydrograph Report Hydraflow Hydrographs Extension for Autodesk® Civil 3D® by Autodesk, Inc. v2023 Wednesday, 11 / 2 / 2022 Hyd. No. 12 Basin #1A Hydrograph type = Reservoir Peak discharge = 1.308 cfs Storm frequency = 2 yrs Time to peak = 12.25 hrs Time interval = 3 min Hyd. volume = 12,439 cuft Inflow hyd. No. = 1 - DA-1A (Roof) Max. Elevation = 420.43 ft Reservoir name = Basin #1A Max. Storage = 2,053 cuft Storage Indication method used. Basin #1A Q (cfs) Q (cfs) Hyd. No. 12 -- 2 Year 4.00 4.00 3.00 3.00 2.00 2.00 1.00 1.00 0.00 0.00 0 3 6 9 12 15 18 21 24 27 Time (hrs) Hyd No. 12 Hyd No. 1 Total storage used = 2,053 cuft

24 Pond Report Hydraflow Hydrographs Extension for Autodesk® Civil 3D® by Autodesk, Inc. v2023 Wednesday, 11 / 2 / 2022 Pond No. 4 - Basin #1A Pond Data UG Chambers -Invert elev. = 418.00 ft, Rise x Span = 4.00 x 4.00 ft, Barrel Len = 75.00 ft, No. Barrels = 3, Slope = 0.00%, Headers = Yes Stage / Storage Table Stage (ft) Elevation (ft) Contour area (sqft) Incr. Storage (cuft) Total storage (cuft) 0.00 418.00 n/a 0 0 0.40 418.40 n/a 168 168 0.80 418.80 n/a 292 460 1.20 419.20 n/a 355 815 1.60 419.60 n/a 391 1,207 2.00 420.00 n/a 409 1,615 2.40 420.40 n/a 409 2,024 2.80 420.80 n/a 391 2,415 3.20 421.20 n/a 355 2,770 3.60 421.60 n/a 292 3,062 4.00 422.00 n/a 168 3,230 Culvert / Orifice Structures Weir Structures [A] [B] [C] [PrfRsr] [A] [B] [C] [D] Rise (in) = 4.00 8.00 0.00 0.00 Crest Len

fRsr] [A] [B] [C] [D] Rise (in) = 4.00 8.00 0.00 0.00 Crest Len (ft) = 4.00 0.00 0.00 0.00 Span (in) = 6.50 12.00 0.00 0.00 Crest El. (ft) = 421.30 0.00 0.00 0.00 No. Barrels = 1 1 0 0 Weir Coeff. = 3.33 3.33 3.33 3.33 Invert El. (ft) = 418.00 420.50 0.00 0.00 Weir Type = Rect --- --- --- Length (ft) = 0.00 0.00 0.00 0.00 Multi-Stage = No No No No Slope (%) = 0.00 0.00 0.00 n/a N-Value = .013 .013 .013 n/a Orifice Coeff. = 0.60 0.60 0.60 0.60 Exfil.(in/hr) = 0.000 (by Wet area) Multi-Stage = n/a No No No TW Elev. (ft) = 0.00 Note: Culvert/Orifice outflows are analyzed under inlet (ic) and outlet (oc) control. Weir risers checked for orifice conditions (ic) and submergence (s). Stage / Storage / Discharge Table Stage Storage Elevation Clv A Clv B Clv C PrfRsr Wr A Wr B Wr C Wr D Exfil User Total ft cuft ft cfs cfs cfs cfs cfs cfs cfs cfs cfs cfs cfs 0.00 0 418.00 0.00 0.00 --- --- 0.00 --- --- --- --- --- 0.000 0.40 168 418.40 0.42 ic 0.00 --- --- 0.00 --- --- --- --- --- 0.420 0.80

168 418.40 0.42 ic 0.00 --- --- 0.00 --- --- --- --- --- 0.420 0.80 460 418.80 0.69 ic 0.00 --- --- 0.00 --- --- --- --- --- 0.692 1.20 815 419.20 0.88 ic 0.00 --- --- 0.00 --- --- --- --- --- 0.884 1.60 1,207 419.60 1.04 ic 0.00 --- --- 0.00 --- --- --- --- --- 1.041 2.00 1,615 420.00 1.18 ic 0.00 --- --- 0.00 --- --- --- --- --- 1.177 2.40 2,024 420.40 1.30 ic 0.00 --- --- 0.00 --- --- --- --- --- 1.299 2.80 2,415 420.80 1.41 ic 0.56 ic --- --- 0.00 --- --- --- --- --- 1.970 3.20 2,770 421.20 1.51 ic 1.94 ic --- --- 0.00 --- --- --- --- --- 3.458 3.60 3,062 421.60 1.61 ic 2.81 ic --- --- 2.19 --- --- --- --- --- 6.610 4.00 3,230 422.00 1.70 ic 3.47 ic --- --- 7.80 --- --- --- --- --- 12.97

25 Hydrograph Report Hydraflow Hydrographs Extension for Autodesk® Civil 3D® by Autodesk, Inc. v2023 Wednesday, 11 / 2 / 2022 Hyd. No. 13 Basin #2 Hydrograph type = Reservoir Peak discharge = 4.882 cfs Storm frequency = 2 yrs Time to peak = 12.30 hrs Time interval = 3 min Hyd. volume = 36,893 cuft Inflow hyd. No. = 9 - DA-3 Max. Elevation = 415.64 ft Reservoir name = Basin #2 Max. Storage = 5,555 cuft Storage Indication method used. Basin #2 Q (cfs) Q (cfs) Hyd. No. 13 -- 2 Year 10.00 10.00 8.00 8.00 6.00 6.00 4.00 4.00 2.00 2.00 0.00 0.00 0 3 6 9 12 15 18 21 24 27 Time (hrs) Hyd No. 13 Hyd No. 9 Total storage used = 5,555 cuft