The Asarco smelter in Everett operated from 1894 to 1912. Significant levels of arsenic and lead from smelter activities were reported in 1990, when a local company discovered contamination in the soil and groundwater. This kind of contamination can happen when particles from smokestacks settle over the surrounding environment.
The Department of Ecology managed cleanup of the most highly contaminated areas (including the former smelter property) from 1999 to 2007. Testing then expanded into surrounding areas, revealing additional contamination of arsenic, lead, cadmium and other metals.
LEARN MORE ABOUT THE EVERETT SMELTER SITE:
Department of Ecology - Learn more about the history of the smelter, testing your soil for contamination and updates regarding the clean-up.