Facility Site ID: 216 Cleanup Site ID: 538

Sediment Contamination From The Asarco Smelter

Aerial view of the Asarco Tacoma smelter
Aerial view of the Asarco Tacoma smelter
For nearly 100 years, the Asarco Company operated a copper smelter in Tacoma. The 90 acre facility sat on the border of north Tacoma and Ruston, along the waterfront. Air emissions and other smelter contaminants polluted the property, the surrounding neighborhoods, and a 1,000 square mile area called the Tacoma Smelter Plume.

In the early 1980s, the U.S. Environmental Protection Agency (EPA) began a Superfund cleanup of the site. To manage this large and complex cleanup, EPA divided the cleanup into four "operable units." The Asarco Offshore is one of these units. It consists of contaminated sediments off the shore of the property.

Technical Reports 1
Document Title Document Date Document Type
Ecology's Acceptance of Change in Proposed ESD 9/13/2018 Site Specific Administrative Document - other (Administrative correspondence)
There may be more documents related to this site. To obtain documents not available electronically, you will need to make a public records request.

Places to see print documents

  • Southwest Regional Office
    300 Desmond Dr SE
    Lacey, 98503-1274
    Please schedule an appointment to view print documents at this location.

Contaminants 8

Contaminant Type
Surface Water
Other Contaminant - Base/Neutral/Acid Organics C C
Halogenated Organics - Halogenated Organics C C
Metals - Metals Priority Pollutants C C C
Metals - Metals - Other C C C
Non-Halogenated Organics - Petroleum Products-Unspecified C
Non-Halogenated Organics - Phenolic Compounds C C
Non-Halogenated Organics - Polycyclic Aromatic Hydrocarbons C C
Other Contaminant - Conventional Contaminants, Inorganic C
Confirmed Above Cleanup Levels
Below Cleanup Levels
This contaminant list was based on our best information at the time it was entered. It may not reflect current conditions at the site.