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Comment Period

CHS Auburn cleanup site

DRAFT Consent decree and environmental documents

Apr. 06, 2018 - May. 07, 2018

Ecology and CHS Inc. will enter into a legal agreement called a consent decree that requires cleanup at the CHS Auburn site (also known as Cenex Valley Supply Coop). The consent decree, along with draft Remedial Investigation (RI) and Feasibility Study (FS) reports and a Draft Cleanup Action Plan (DCAP) are available for public review and comment.

CHS Auburn cleanup site is generally located at 238 8th Street SE in Auburn, Washington. The site covers approximately 10-1/2 acres. Remedial activities have been ongoing since 1994, with one groundwater remediation system, designated as the Central System, currently active at the Site. The identified chemicals of concern are petroleum hydrocarbon compounds (diesel, gasoline, oil, benzene, toluene, ethylbenzene, and xylenes) in soil and groundwater.

You are invited to comment on the following documents:

  • Final RI report, which describes the nature and extent of contamination and remediation at the site;
  • Final FS, which describes alternatives evaluated to clean up the site and the preferred alternative;
  • DCAP, which describes the proposed remedial alternative to clean up the site;
  • Draft Consent Decree, the legal agreement filed in court that requires CHS Inc. to conduct the cleanup;
  • State Environmental Policy Act (SEPA) checklist and Determination of Non-Significance (DNS); 
  • Updated Public Participation Plan. The plan outlines and describes the tools and approaches that Ecology will use to inform the public about site activities, and it identifies opportunities for the community to become involved in this process.
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Comment online

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Comment by mail

Jerome Cruz
Department of Ecology, Northwest Regional Office
3190 160th Avenue SE
Bellevue, WA 98008
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Jerome Cruz
Site Manager

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