Skip to main content

Guidelines for filter strip pre-treatment sizing

Guidelines for filter strip pre-treatment sizing
Parameter Impervious Parking Lots Residential Lawns
Maximum Inflow Approach Length (ft) 35 75 75 150
Filter Strip Slope =<2% >2% =<2% 2% =<2% 2% =<2% 2%
Filter Strip Minimum Length 10' 15' 20' 25' 10' 12' 15' 18'