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Columbia River

Willamette Watershed Toxics Reduction Partnership


EPA: Mary Lou Soscia (, 503-326-5873.

Oregon DEQ: Steve Mrazik (, 503-229-5379.

On this page:

Next Meeting

To be announced.

Past meetings

  • October 11, 2018, at Columbia River Inter-Tribal Fish Commission in Portland.
  • May 8, 2018, at Oregon Dept. of Environmental Quality in Portland.
  • January 31, 2018, at Columbia River Inter-Tribal Fish Commission in Portland.
  • October 18, 2017, at EPA offices in Portland.
  • May 24, 2017, at Multnomah County Library in Portland.

About the Partnership

The Willamette Watershed Toxics Reduction Partnership is a joint commitment by EPA and the Oregon Department of Environmental Quality (DEQ) to work collaboratively with interested parties to understand and reduce upstream toxics in the Willamette River that could negatively impact the success of the EPA’s Portland Harbor Superfund cleanup.


  1. Compile existing watershed contamination data and identify data gaps.
  2. Describe existing efforts, and evaluate the efficacy of these programs.
  3. Investigate potential upstream sources of contamination to the Portland Harbor Superfund site, considering any data gaps identified.
  4. Identify new strategies to reduce contaminant loading.

We invite participation by all interested entities and residents including municipalities, federal, state and local agencies and authorities, tribal nations, advocacy organizations, interested industry groups, and the general public.

Documents and Meeting Materials

Additional Documents

Upriver Reach Sediment Characterization Field and Data Report (PDF)(53 pp, 27 MB)Exit

Copies of additional meeting handouts and presentations are available on EPA's file sharing site.

You may need a PDF reader to view some of the files on this page. See EPA’s About PDF page to learn more.