Drainage Report

Basin 2-2 with exfil Proposed Basin 2-2 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 36S: Basin 2-2 Runoff Area=61,497 sf Runoff Depth=2.51" Flow Length=606' Tc=10.0 min CN=80/98 Runoff=3.19 cfs 0.295 af Pond 42P: Pond 2-2 Peak Elev=543.11' Storage=7,908 cf Inflow=3.19 cfs 0.295 af Discarded=0.09 cfs 0.295 af Primary=0.00 cfs 0.000 af Outflow=0.09 cfs 0.295 af Total Runoff Area = 1.412 ac Runoff Volume = 0.295 af Average Runoff Depth = 2.51"