- 0
- April 27, 2025
Federal Way, Washington
Background:
Camp Kilworth is a 29-acre former Boy Scout camp located in Federal Way, Washington. The property was impacted by arsenic and lead contamination stemming from historic air emissions from the Asarco Tacoma Smelter. Forterra NW, planning to restore the site as a nature park for youth education, initiated cleanup efforts under the Washington State Department of Ecology’s Voluntary Cleanup Program.
Camp Kilworth is a 29-acre former Boy Scout camp located in Federal Way, Washington. The property was impacted by arsenic and lead contamination stemming from historic air emissions from the Asarco Tacoma Smelter. Forterra NW, planning to restore the site as a nature park for youth education, initiated cleanup efforts under the Washington State Department of Ecology’s Voluntary Cleanup Program.
Environmental Assessment:
Between 2017 and 2022, environmental consultants conducted extensive soil sampling and site investigations. Contaminant levels were assessed across various depths, revealing areas exceeding cleanup standards for arsenic and lead. A Cleanup Action Plan was developed, incorporating a combination of soil excavation, capping, and consolidation to address contamination while preserving natural site features.
Between 2017 and 2022, environmental consultants conducted extensive soil sampling and site investigations. Contaminant levels were assessed across various depths, revealing areas exceeding cleanup standards for arsenic and lead. A Cleanup Action Plan was developed, incorporating a combination of soil excavation, capping, and consolidation to address contamination while preserving natural site features.
Key Findings:
-
Approximately 10 tons of arsenic-contaminated soil were excavated and disposed of at a certified landfill.
-
Clean gravel and soil caps were installed across activity areas, trails, and camping pads.
-
Signage and fencing were added to restrict access and protect capped areas.
-
Annual monitoring and maintenance plans were established to ensure the long-term integrity of the site.
Conclusion:
In April 2025, the Washington State Department of Ecology issued a No Further Action (NFA) opinion for Camp Kilworth, validating that cleanup standards had been achieved. With protective measures and ongoing monitoring in place, the site is now ready for redevelopment as a nature park, preserving open space and providing educational opportunities for future generations.
In April 2025, the Washington State Department of Ecology issued a No Further Action (NFA) opinion for Camp Kilworth, validating that cleanup standards had been achieved. With protective measures and ongoing monitoring in place, the site is now ready for redevelopment as a nature park, preserving open space and providing educational opportunities for future generations.