McCormick and Baxter Superfund Site | Region 10 | US EPA

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McCormick and Baxter Superfund Site

Site Information


Nancy Harney (, Superfund Project Manager, (206) 553-6635

Scott Manzano (, Oregon DEQ Project Manager, (503) 229-6748

Judy Smith (, Community Involvement Coordinator, (503) 326-6994

Site Description: The Site is a former creosote wood treating facility located on the east bank of the Willamette River in Portland, Oregon. The Site encompasses approximately 41 acres of land and an additional 23 acres of contaminated river sediments. The McCormick and Baxter Creosoting Company was founded in 1944 and continued operations until October 1991.

Site investigations confirmed releases of wood-treating chemical compounds to soils, groundwater, and sediments. Remedial investigations identified two non-aqueous phase liquids (NAPL) plumes migrating to the river and impacting surface water and sediments, and an additional NAPL plume migrating under the Burlington Northern Santa Fe railway right-of-way toward Willamette Cove.

Construction of the Site remedies was completed in September 2005. Completed cleanup activities include soil excavation and disposal, upland soil capping, installation of a subsurface barrier wall, NAPL recovery, construction of a multi-layer sediment cap in the Willamette River, monitoring, and engineering and institutional controls.

Site Contaminants

Soils, groundwater, and sediment have been contaminated with polynuclear aromatic hydrocarbons (PAHs, comprising est. 85% of the creosote), PCP, arsenic, chromium, copper, zinc, and dioxins/furans.

Where to Review Site Documents

You can review copies of all technical documents, fact sheets, and other documents related to the site at the following locations:

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