Following this review process, the EPA issued a record of decision report in 2001, to design and construct the necessary infrastructure for treatment. This elimination process is based on factors such as the types of contamination at the mines, geological and chemical considerations, cost, effectiveness, and ease of implementation. The investigation report presents results from the characterization of the mine while the feasibility study determined which remedial actions considered in the investigation report would be executed. Remedial investigation and feasibility study reports were released by Roy F. In April 1995, the White King mines were placed on the EPA’s national priorities list for superfund sites, which is the major environmental remediation program enforced by the US government. In August 1991 the USFS notified the EPA of potential mining-related ecological damage at the mines, leading to an examination and characterization of the mines. Several independent entities have some stake in the site: the United States Forest Service (USFS), Fremont Lumber Co., and the Coppin family trust. Other radionuclides (thorium, radon, radium), metals, and metalloids, primarily arsenic have been measured at the sites as well. Since the mine’s closure, the mining pits are filled with water, passively draining into the nearby Augur Creek.įrom the 1950’s to the 1970’s, a number of mining operations led to the extraction of over 200 tons of uranium from White King mine. The background radiation levels in this region are regionally higher than surrounding areas. The site consists of two mines separated by about a mile, known as White King and Lucky Lass. Superfund Site Selection and Decisionmaking ProcessĪ 140 acre site in south-central Oregon houses a former uranium mining site.
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