Drainage Report

Basin 2-4 with exfiltration Proposed Basin 2-4 R3 NOAA 24-hr D 2-Year Rainfall=3.44" Prepared by Anderson Consulting Services Printed 10/23/2023 HydroCAD® 10.20-3f s/n 06666 © 2023 HydroCAD Software Solutions LLC Page 7 Time span=0.00-72.00 hrs, dt=0.05 hrs, 1441 points Runoff by SCS TR-20 method, UH=SCS, Split Pervious/Imperv. Reach routing by Stor-Ind+Trans method - Pond routing by Stor-Ind method Subcatchment 38S: Basin 2-4 Runoff Area=96,037 sf Runoff Depth=1.93" Flow Length=1,912' Tc=10.1 min CN=78/98 Runoff=3.93 cfs 0.354 af Pond 43P: pond 2-4 Peak Elev=542.81' Storage=9,019 cf Inflow=3.93 cfs 0.354 af Discarded=0.14 cfs 0.354 af Primary=0.00 cfs 0.000 af Outflow=0.14 cfs 0.354 af Total Runoff Area = 2.205 ac Runoff Volume = 0.354 af Average Runoff Depth = 1.93"