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.
The Final Human Health Risk Assessment for Portland Harbor Superfund Site is available for review (PDF) (141 pp, 1.2MB). The general conclusions from the assessment are:
- eating resident fish such as catfish, bass, and carp from Portland Harbor is a health risk especially for recreational and subsistence fishers, and infants that are breast fed by mothers who eat resident fish;
- PCBs are the primary contaminant associated with most of the risk from eating Portland Harbor fish; and
- the health risks are great enough for cleanup to be needed under the Superfund law.
We are 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.
- Notice of Assessment and Stipulated Penalties Letter to Lower Willamette Group (PDF) (3 pp, 243K) - April 10, 2013
- Final Human Health Risk Assessment (PDF) (141 pp, 1.2MB) - March 28, 2013
- Note: To review appendices please contact Alanna Conley (firstname.lastname@example.org) via email or at 503-326-6831 for a CD of the full report. You can also visit Multnomah County Central Library's Government Documents section.
- Proposed Confined Disposal Facility Questions and Answers (PDF) (19 pp, 100K) - January 13, 2013
- EPA comments on the RI/FS Draft Baseline Ecological Risk Assessment (PDF) (44 pp, 937K) - December 21, 2012
- EPA comments on the March 2012 Draft Study Feasibility Study (PDF) (24 pp, 1MB) - December 18, 2012
- Portland Harbor Baseline Human Health Risk Assessment (BHHRA) Dispute Decision (PDF) (10 pp, 924K) - December 6, 2012
- Portland Harbor BHHRA Dispute Decision Memo - Partial Resolution (PDF) (2 pp, 94K) - October 25, 2012