Project Name: Bushnell University Duke CommonsBasin: 4Date: 5/1/2026Water Quality Event Surface Facility ModelingWater Quality Event Below Grade Modeling0%10%20%30%40%50%60%70%80%90%100%0.00000.00200.00400.00600.00800.01000.01200.01400 500 1000 1500 2000 2500Runoff, cfsTime, minutesSurface InflowInfiltration CapacityPercolation to SubsurfaceOverflowSurface Capacity0%10%20%30%40%50%60%70%80%90%100%0.00000.00050.00100.00150.00200.00250.00300.00350.00400.00450 500 1000 1500 2000 2500Runoff, cfsTime, minutesRock InflowInfiltration CapacityOverflowRock Capacity 800 Willamette Street, Suite 400 Eugene, OR 97401 541.684.4902 kpff.com