MAILING ADDRESS: 1120 SW 5th Ave, Room 1000, Portland, OR 97204
A joint U.S. Environmental Protection Agency (EPA) and Oregon Department of Environmental Quality (DEQ) study in 1997 showed that river sediments in Portland Harbor are contaminated with DDT and other pesticides, polychlorinated biphenyls (PCBs), and petroleum. Based on this information, EPA designated Portland Harbor as a Superfund Site in December 2000.
This is an unusually complicated Superfund site, one of the most complex in the EPA Superfund program. The site:
The EPA on January 6, 2017 issued its final cleanup plan. See the City's response.
How the City of Portland is involved in the Portland Harbor Superfund investigation
City of Portland Comments on EPA Proposed Plan for Portland Harbor
How to learn more about the Portland Harbor Superfund site
Summary of activities
City of Portland Outfalls Project