The Gog-Le-Hi-Te Habitat Action Project is located between Lincoln Avenue and the Highway 509 Bridge on the Puyallup River in Tacoma, WA. The project consists of the conversion of a closed landfill into a low-salinity, tidally-influenced mudflat habitat. Sediment and landfill debris will be removed from the site, dropping the elevation of the site by an average of six to eight feet. Treatment is required to remove contaminants from stormwater that falls on the site during construction, perched water from refuse, and groundwater seepage during excavation. The 1,000gpm treatment system WaterTectonics mobilized included pre and post chemical flocculation and alumina oxide polishing filtration for heavy metal and organic removal.