Hamilton-Labree Roads Groundwater Contamination Superfund Site

Site History

The Hamilton Labree Roads Groundwater Contamination Superfund Site is located near the intersection of North Hamilton Road and Labree Road, west of Interstate 5, about two miles south of Chehalis, Washington. The site was added to the Superfund National Priorities List in 2000. The site includes two areas where PCE and other chemicals were released into soil and surface water: the S.C. Breen Construction Company (Breen) property and the Hamilton Road Impacted Area (HRIA). There are other areas at the site where releases likely occurred, including at or near the Thurman Berwick Creek Area.

Contaminated groundwater plumes from these areas flow west and northwest along the Newaukum River Valley. Most of the homes and businesses across the site use drinking water from the City of Chehalis public water supply system. However, if the PCE is not cleaned up and the contaminated groundwater plumes continue to advance down the valley, residents and workers not on the public water supply system may be at risk if they drink PCE-contaminated groundwater.

Proposed Plan for Hamilton Road Impacted Area

Our Proposed Plan for cleaning up the Hamilton Road Impacted Area (HRIA) is available.

• Proposed Plan (PDF) (100 pp, 10.5MB) - September 2012
• Draft Feasibility Study (PDF) (233 pp, 22MB) - September 2012

Fact Sheets

• Comment on HRIA proposed cleanup plan by November 9 (PDF) (8 pp, 1.2MB) - October 2012
• EPA to introduce cleanup proposal later this year (PDF) (4 pp, 712K)- July 2012
• Community Involvement Plan (PDF) (8 pp, 455K) - March 2001

For copies of older fact sheets, contact Debra Sherbina (sherbina.debra@epa.gov) at 206-553-0247 or 1-800-424-4372, extension 0247.

Technical Documents

• Proposed Plan for Hamilton Road Impacted Area (PDF) (103 pp, 10.6MB) - September 2012
• Draft Feasibility Study for Hamilton Road Impacted Area (PDF) (233 pp, 21.7MB) - September 2012
• Draft Site-Wide Baseline Risk Assessment Report (PDF) (188 pp, 18MB) - October 2011
• Draft Site-Wide Remedial Investigation Report (PDF) (944 pp, 63MB) - September 2011
• Action Memo for Installation of New Water Supply Line (PDF) (14 pp, 37K) - July 2002

For other site documents, visit one of the document repository locations listed below, or contact Debra Sherbina (sherbina.debra@epa.gov) at 206-553-0247 or 1-800-424-4372, extension 0247.

Where to Review Hard Copies of Documents

You can review copies of all Administrative Records for this site at the locations listed below. All other publicly releasable site file records are available for review by request under the Freedom of Information Act (FOIA).

• Vernetta Smith Chehalis Timberland Library
  400 N. Market Blvd.
  Chehalis, WA 98532-0419
  360-748-3301
• EPA Region 10 Superfund Records Center
  1200 Sixth Avenue, Suite 900, ECL-076
  Seattle, WA 98101
  206-553-4494 (please call for an appointment)