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U.S. Department of Energy
Office of Scientific and Technical Information

Superfund Record of Decision (EPA Region 5): St. Louis River/Interlake/Duluth Tar site, Duluth, MN. (First remedial action), September 1990

Technical Report ·
OSTI ID:5268816
The 230-acre St. Louis River site (also known as the St. Louis River/Interlake Duluth Tar site) is on the north bank of the St. Louis River in Duluth, Minnesota, with portions of the site within the 100-year floodplain. This site is the former location of several pig iron and coking plants, as well as separate tar and chemical companies, which used byproducts from the plants. Soil and underlying ground water are contaminated with high levels of PAHs as a result of past onsite disposal activities. The Record of Decision (ROD) addresses Operable Unit 1 (OU1), the remediation of the onsite tar seeps, which are a potential source of ground water and surface water contamination. The primary contaminants of concern affecting the soil are organics including PAHs.
Research Organization:
Environmental Protection Agency, Washington, DC (United States). Office of Emergency and Remedial Response
OSTI ID:
5268816
Report Number(s):
PB-91-921458/XAB; EPA/ROD/R--05-90/139
Country of Publication:
United States
Language:
English