Project name: Rio Tinto Holden Mine Reclamation
Location: Washington State, U.S.A.
The Holden Mine Remediation Project is regulated under the Comprehensive Environmental Response, Compensation and Liability Act of 1980 (CERCLA) standards. The project is large and complex, with construction scheduled for 2011 through 2016. The clean-up focuses primarily on water quality improvement and long-term land reclamation at the site. This includes the rerouting of a creek to improve the fishery habitat and the building of a slurry wall and underground bulkheads to contain and collect affected water for processing at a treatment plant.