Skip to content

Corps Of Engineers Landfill Removal Action

Corps Of Engineers Landfill Removal Action

Contact Information

Get in Touch

Farallon developed the technical approach to excavate, classify, segregate, and dispose of waste from the unpermitted landfill at the former U.S. Army Corps of Engineers (USACE) North Pacific Division Laboratory materials testing facility that operated in Troutdale, Oregon between 1949 and 1997. Much of the soil and concrete tested at the facility had been disposed of in an unlined landfill on the property. The project objective was to remove the landfill contents and underlying contaminated soils to achieve EPA Preliminary Remediation Goals. Farallon developed an approach to characterize the landfill contents, conduct waste excavation and segregation activities, and perform confirmation sampling. Details of the approach were presented in the Remedial Action Management Plan prepared by Farallon, which included a Field Sampling Plan, Quality Assurance Project Plan (QAPP), and Contractor Quality Control Plan.

Confirmation samples collected at the facility were analyzed for volatile organic and semivolatile organic compounds, organochlorine pesticides, PCBs, and metals. A total of 56 characterization and confirmation samples were analyzed for 172 compounds in accordance with strict USACE quality control protocols that Farallon detailed in the QAPP. Over 5,000 tons of contaminated material was removed from the landfill for off site disposal. Site restoration included backfilling, grading, and hydroseeding to match surrounding land conditions.


Services Utilized

Landfill Services

We provide engineering design and permitting support for landfill caps, landfill gas management control, stormwater management, and regulatory requirement compliance. For over a decade, we have provided engineering and permit compliance...

Read more

Meet Our Experts

headshot of Craig Ware Craig Ware Principal Hydrogeologist, Regional Operations Manager

Craig has 30 years of experience in providing consulting services to clients on the West Coast and nationally for acquisition, cleanup, reclamation, and redevelopment projects. His expertise includes...

Contact Us

Get In Touch

    This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.

    This website requires cookies to provide all of its features. For more information on what data is contained in the cookies, please see our Privacy Policy page. By continuing to use this website, you agree to our Privacy Policy.