V4 11 Stormwater Report Rev 3 1 26 2023

24 Pond Report Hydraflow Hydrographs Extension for Autodesk® Civil 3D® by Autodesk, Inc. v2023 Friday, 01 / 27 / 2023 Pond No. 1 - Basin #2 Pond Data Contours -User-defined contour areas. Conic method used for volume calculation. Begining Elevation = 414.00 ft Stage / Storage Table Stage (ft) Elevation (ft) Contour area (sqft) Incr. Storage (cuft) Total storage (cuft) 0.00 414.00 3,360 0 0 5.00 419.00 3,400 16,898 16,898 Culvert / Orifice Structures Weir Structures [A] [B] [C] [PrfRsr] [A] [B] [C] [D] Rise (in) = 8.00 15.00 0.00 0.00 Crest Len (ft) = 4.00 0.00 0.00 0.00 Span (in) = 15.00 21.00 0.00 0.00 Crest El. (ft) = 418.00 0.00 0.00 0.00 No. Barrels = 1 2 0 0 Weir Coeff. = 3.33 3.33 3.33 3.33 Invert El. (ft) = 414.00 416.00 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 Contour) Multi-Stage = n/a No No No TW Elev. (ft) = 0.00 Note:

= 0.000 (by Contour) 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 0 414.00 0.00 0.00 --- --- 0.00 --- --- --- --- --- 0.000 5.00 16,898 419.00 8.67 ic 32.46 ic --- --- 13.32 --- --- --- --- --- 54.45