In October, Environmental Services will start construction on a project to install a stormwater filtration system along NE Columbia Boulevard between NE 60th and NE 63rd avenues. Crews will begin work 175 feet west of Columbia and 63rd by installing a manhole and replacing public sewer pipe. Crews will then install a vault in Columbia at 63rd that will filter sediment and pollutants from stormwater runoff discharged through an outfall pipe into the Columbia Slough.