The Tacoma Smelter Plume project is an effort by Public Health - Seattle & King County, state agencies and local communities to determine the extent of soil contamination in King County. Specifically, soils are being sampled for arsenic and lead that likely came from the smokestacks of the Asarco copper smelter in Ruston, near Tacoma. Results from studies conducted between 1999 and 2002 are linked below:
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