Eugene Stormwater Facility CalculatorProject Name: BraewoodBasin: Swale 4Instructions:Date: 8/28/20251. Choose Facility TypeDate: 12.01.232. Choose shape3. Complete information in highlighted cellsFacilitySwaleSwale TypeVegetatedShapeRectangularBelow-GradeSee Swale Worksheet1,168sfSee Swale Worksheet1,1685ft124to 10.406in18inTested infiltration rate1.00in/hrInfiltration Safety Factor2.00Surface Storage Capacity6cf0Infiltration Area @ 75%73sfDesign Infiltration Rate0.50in/hrGM Infiltration Rate2.5in/hrInfiltration Capacity0.001cfsInfiltration Capacity (avg)0.004cfsResultsSURFACE CAPACITYRecurrance IntervalPeak Flow (cfs)Volume (cf)Meets Infiltration?WQ0.14111,919Filtration Only2-Yr0.35594,8195-Yr0.42895,78010-Yr0.56407,5457525-Yr0.68029,05250-Yr0.814910,801100-Yr0.894511,832WATER QUALITY EVENTPASSROCK CAPACITY N/ARock CapacityN/AN/AN/AN/AOpen, No Rock10-Yr Infiltration Volume (cf):N/A100%N/AN/A