The 350-acre Martin Marietta Reduction Facility (MMRF) site is located in The Dalles, Wasco County, Oregon. The site lies within an 800-acre area used primarily for heavy industry and manufacturing. From 1958 to 1970, Harvey Aluminum, Inc. operated a processing facility designed to produce about 90,000 tons of aluminum a year. Martin Marietta Corporation (MMC) acquired the facility in 1970 and continued aluminum processing operations until 1984, when the plant was shut down. The MMRF site consists of 28 areas of significant contamination resulting from treatment, storage, and disposal practices at the site. A 15-acre landfill located near the aluminum reduction building contains approximately 200,000 cu yds of waste and plant construction debris. Leachate emanating from the landfill resulted in the contamination of the area aquifer. The selected remedial action for this site includes: excavation of the cathode waste material and placement into the existing landfill, and covering the landfill with a RCRA cap; placement of a soil cover over scrubber sludge ponds 2 and 3; plugging and abandonment of nearby production wells.
Additional title: Superfund record of decision (EPA Region 10): Martin Marietta site, the Dalles, Oregon (first remedial action), September 1988. "EPA/ROD/R10-88/017." PB89-188759. "September 1988."