Frequently Asked Questions - Acronyms/Abbreviations/Jargon

Definitions of commonly used acronyms, abbreviations and jargon relating to the Portland Harbor Superfund site.

Region 10 refers to the geographic area covered by the Seattle regional office of the US Environmental Protection Agency, the Pacific Northwest. Region 10 includes Oregon, Washington, Idaho, Alaska and 271 native tribes within this area. See

NRDA stands for Natural Resource Damage Assessment. It's a separate but concurrent process with the superfund clean up overseen by the Portland Harbor Trustee council.

The restoration (minimum of 50% within the superfund site) is in response to damage to the lower Willamette River due to pollution.

RCRA = Resource Conservation and Recovery Act.  - Federal law that regulates hazardous and non-hazardous wastes.

CERCLA = Comprehensive Environmental Response, Compensation, and Liability Act - Commonly known as Superfund.  This is the law which controls the site cleanup process.

FS = Feasiblity Study - The study of alternatives for cleaning up pollutants identified in the Remedial Investigation.

RM = River Mile.  On the Willamette this is the distance up river from the confluence with the Columbia River.

RI = Remedial Investigation - The study of the current state of the Portland Harbor identifying the nature and extent of pollutants as well as physical characteristics of the river and the Ecological and Human Health Risks.

CAG is short for Community Advisory Group, which refers to the Portland Harbor Community Advisory Group.  See the About page.