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Rustys_Pre-Construction - Copy Type II 24-hr 10-yr Rainfall=3.14" Prepared by Waves AE Printed 7/29/2026 HydroCAD® 10.20-7a s/n 13900 © 2025 HydroCAD Software Solutions LLC Page 7 Time span=5.00-20.00 hrs, dt=0.05 hrs, 301 points Runoff by SCS TR-20 method, UH=SCS, Weighted-CN Reach routing by Stor-Ind+Trans method - Pond routing by Stor-Ind method Subcatchment 1: Subcat 1 Runoff Area=24,656 sf 79.93% Impervious Runoff Depth>2.24" Tc=6.0 min CN=93 Runoff=2.20 cfs 4,600 cf Subcatchment 2: Subcat 2 Runoff Area=17,535 sf 47.01% Impervious Runoff Depth>1.58" Tc=0.0 min CN=85 Runoff=1.39 cfs 2,309 cf Link AP1: SENECA ST Inflow=2.20 cfs 4,600 cf Primary=2.20 cfs 4,600 cf Link AP2: BASIN Inflow=1.39 cfs 2,309 cf Primary=1.39 cfs 2,309 cf Total Runoff Area = 42,190 sf Runoff Volume = 6,909 cf Average Runoff Depth = 1.97" 33.75% Pervious = 14,239 sf 66.25% Impervious = 27,952 sf Page 57 of 84