Funding and Participation Agreement Portland Harbor Injury Assessment PlanFunding and Participation Agreement • March 19th, 2008
Contract Type FiledMarch 19th, 2008The Portland Harbor Superfund Site is located along the lower Willamette River near Portland, Oregon. The Willamette River originates in the Oregon Cascade Range, drains a watershed area of about 11,400 square miles, and has a total length of 209 miles before its confluence with the Columbia River. From the mouth of the Willamette, the Columbia River then flows another 100 channel miles before discharging into the Pacific Ocean. The river segment between River Mile (RM) 3 and RM 10 is the primary depositional area of the Willamette River system, and contains the highly-industrialized area known as Portland Harbor.