Human Health Risk Assessment, Portland Harbor Superfund Site

Portland, Oregon

Portland Harbor on the Willamette River in Portland, Oregon was listed as a Superfund site because sediments were found to contain polychlorinated biphenyls (PCBs), polycyclic aromatic hydrocarbons (PAHs), polychlorinated dibenzo-dioxins and -furans (PCDDs/PCDFs) and other contaminants at levels that may pose a hazard to human and ecological receptors in the harbor.

A collective of potentially responsible parties (PRPs) initiated a remedial investigation and feasibility study (RI/FS) to investigate the chemicals present in sediment, assess the potential risks to human health and the environment, and develop and evaluate possible cleanup alternatives.

Kennedy/Jenks is conducting the human health risk assessment (HHRA) for the Portland Harbor Superfund Site, which is an active industrial harbor and recreational area. The risk assessment will provide a better understanding of the potential risks to people who fish, swim and work within the harbor and will be used in establishing cleanup goals.