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Type II 24-hr 10-year Rainfall=4.17"25018 Existing Hydro Printed 10/29/2025Prepared by Land & Resource Consulting Inc Page 15HydroCAD® 10.20-7a s/n 12643 © 2025 HydroCAD Software Solutions LLC Time span=0.00-72.00 hrs, dt=0.01 hrs, 7201 points Runoff by SCS TR-20 method, UH=SCS, Weighted-Q Reach routing by Stor-Ind+Trans method - Pond routing by Stor-Ind method Runoff Area=20,400 sf 0.00% Impervious Runoff Depth=2.96"Subcatchment 1S: Site to Lowpoint Tc=7.0 min CN=WQ Runoff=2.16 cfs 5,030 cf Runoff Area=8,700 sf 0.00% Impervious Runoff Depth=3.21"Subcatchment 2S: Site to East Tc=7.0 min CN=WQ Runoff=0.99 cfs 2,325 cf Runoff Area=14,400 sf 19.44% Impervious Runoff Depth=3.53"Subcatchment 3S: Offsite North to Tc=7.0 min CN=WQ Runoff=1.77 cfs 4,238 cf Runoff Area=8,100 sf 24.69% Impervious Runoff Depth=3.25"Subcatchment 4S: Offsite Southwest to Tc=7.0 min CN=WQ Runoff=0.92 cfs 2,193 cf Runoff Area=500 sf 0.00% Impervious Runoff Depth=3.71"Subcatchment 5S: Site to Road Tc=7.0 min CN=96 Runoff=0.06 cfs 155 cf Inflow=5.33 cfs 13,798 cfReach 1R: Site Total Outflow=5.33 cfs 13,798 cf Inflow=4.42 cfs 11,473 cfReach 2R: Site to West Outflow=4.42 cfs 11,473 cf Avg. Flow Depth=0.38' Max Vel=6.50 fps Inflow=1.77 cfs 4,238 cfReach 3R: Driveway Culvert 12.0" Round Pipe n=0.013 L=30.0' S=0.0267 '/' Capacity=5.82 cfs Outflow=1.77 cfs 4,238 cf Peak Elev=955.34' Storage=1,121 cf Inflow=4.85 cfs 11,461 cfPond 1P: Onsite Lowpoint 18.0" Round Culvert n=0.013 L=56.0' S=0.0184 '/' Outflow=4.36 cfs 11,319 cf Total Runoff Area = 52,100 sf Runoff Volume = 13,941 cf Average Runoff Depth = 3.21" 90.79% Pervious = 47,300 sf 9.21% Impervious = 4,800 sf