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EPA SELECTS REMEDY FOR CLEANUP OF THE K-1407-B/C PONDS AT THE K-25 SITE, OAK RIDGE RESERVATION, TENN.

 ATLANTA, Oct. 7 /PRNewswire/ -- The U.S. Environmental Protection Agency announced today that a Record of Decision (ROD) has been signed for the K-1407-B/C Ponds, at the K-25 site, Oak Ridge Reservation, Tenn.
 The ROD was signed by EPA Region IV, U.S. Department of Energy (DOE), and the Tennessee Department of Environment and Conservation (TDEC).
 The selection of a remedy under provisions of the Comprehensive Environmental Response, Compensation and Liability Act (CERCLA, also known as Superfund) is a continuation of an action taken earlier under the Resource Conservation and Recovery Act (RCRA) which addressed the cleanup and removal of hazardous waste from the ponds. However, the RCRA action did not address radioactive contamination.
 The remedy, Engineered Rock Fill, when implemented, will prevent direct exposure to ionizing radiation by covering the excavated ponds with crushed rock, soil, and vegetation.
 Additionally, the remedy includes institutional controls to prevent any future disturbance of the fill. Because the remedy will result in hazardous substances remaining on-site above health-based levels, a review will be conducted every five years after implementation to ensure the remedy remains protective.
 The Oak Ridge Reservation site, operated by DOE, covers 37,000 acres and includes 650 known or suspected areas of contamination. The site consists of three major facilities: a research lab that includes nuclear reactors, chemical and biological research programs, and production labs. The K-25 site was built as part of the Manhattan Project during World War II, and was the world's first large-scale uranium enrichment facility. The B Pond constructed in 1943, was primarily used for settling metal hydroxide precipitates and for the receipt of discharges from metals decontamination and waste from a steam plant. The C Pond was constructed in 1973 and was used primarily to store sludge from a potassium hydroxide scrubber. It also received sludge from the B Pond. Both ponds are in compliance with the specifications of a RCRA clean closure.
 The site was added to the National Priorities List (NPL) of hazardous waste sites in November 1989.
 -0- 10/7/93
 /CONTACT: Fernando Rivera, project manager, 404-347-3016, or Carl Terry, press office, 404-347-3004, both of the United States Environmental Protection Agency/


CO: United States Environmental Protection Agency; U.S. Department of
 Energy; Tennessee Department of Environment and Conservation ST: Tennessee IN: ENV SU: EXE


BR-RA -- AT004 -- 1272 10/07/93 10:09 EDT
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Date:Oct 7, 1993
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