Draft Periodic Review

We invite you to comment on the draft Periodic Review for a landfill closure at Recomp of Washington’s site in Ferndale.

We conduct periodic reviews every five years after a cleanup action when institutional controls are used as part of the remedy, as required by the Model Toxics Control Act. Periodic reviews evaluate site conditions to ensure protection of human health and the environment.
 

Conclusions from the 2022 Draft Periodic Review

• The cleanup action (i.e., landfill closure) completed at the site appears to be protective of human health and the environment.
• Containment includes native low-permeability soils beneath the landfill, a compacted clay cover above the landfill material, and a gravel cutoff trench and leachate collection pipe down gradient of the landfill. Additionally, a soil-bentonite slurry wall and paved surfaces between the landfill cover and the slurry wall divert groundwater and surface water away from the closed ash landfill.
• A Restrictive Covenant for the property continues to be effective in protecting human health and the environment from exposure to hazardous substances and protecting the integrity of the cleanup action. 
• The Periodic Review distinguishes the Recomp of Washington site and the adjoining Wilder Landfill site, but the Periodic Review does not evaluate the Wilder Landfill site.