The Portland Harbor Superfund Site in Portland, Oregon, is the result of more than a century of industrial use along the Willamette River.
Water and sediments along Portland Harbor are contaminated with many hazardous substances, including heavy metals, polychlorinated biphenyls (PCBs), polynuclear aromatic hydrocarbons (PAH), dioxin, and pesticides. These compounds have been found to be harmful to human health and the environment. Because of the contamination, some types of fish found in Portland Harbor, such as bass, carp and catfish currently pose a health risk to those who eat them.
Portland Harbor was added to EPA's National Priorities List in December 2000. The current study area extends from the Columbia Slough to the Broadway Bridge.
EPA and the Oregon Department of Environmental Quality are working with potentially responsible parties to clean up contaminated sediment and control sources of additional contamination.
Current status: We're working with the Lower Willamette Group to finalize the draft ecological risk assessment, remedial investigation and the feasibility study which evaluates cleanup alternatives for Portland Harbor. We will use the final remedial investigation and feasibility study to develop a proposed cleanup plan by 2014. When released there will be a series of public information sessions to discuss the proposed plan and the opportunity for formal public comments. Until then, we will continue to meet with the community to provide updates, answer questions, and listen to concerns.
"Early Action" cleanup areas
Early Action cleanup areas are parts of a Superfund site that may become a threat to people or the environment before the long-term cleanup is completed. Within the Portland Harbor Superfund Site, Triangle Park and U.S. Moorings early action areas have completed cleanup activities and are being monitored. The remaining early action areas below have begun in water removal of contaminated sediments and collection of extensive data at known “hot spots,” or areas where contamination is highly concentrated. The initial work will allow hot spots at the remaining early action sites to receive priority when sitewide cleanup begins.
- Arkema - A former pesticide manufacturing facility contaminated with high levels of DDT and other chemicals.
- Gasco-Siltronic - A former manufactured gas plant contaminated with tar deposits from past manufacturing.
- River Mile 11E - An area located between the Fremont and Broadway Bridges on the east side of the Willamette River.
- Terminal 4 - A former industrial site contaminated with pesticides, PCBs, metals, and PAHs.
- Triangle Park - A 35-acre former industrial site with soil and groundwater contamination.
- U.S. Moorings Early Action Area - A former industrial site contaminated with metals, solvents, and petroleum by-products from historical boat maintenance activities.