Characterization of the homogeneous reactor experiment No. 2 (HRE) impoundment

Technical Report · Tue Jul 01 04:00:00 EDT 1986

OSTI ID:5557785

Stansfield, R G; Francis, C W

A characterization study was conducted on a radioactive waste impoundment for the Homogeneous Reactor Experiment No. 2 at the Oak Ridge National Laboratory, to provide information necessary for its proper disposition. The impoundment received low-level radioactive wastes from 1957 until 1963. In 1970, the pond was backfilled with clay soil and the impoundment capped with asphaltic concrete, but no wastes were removed. The mixed soil fill and sediment, approximately 4.8 m deep, was sampled using soil boring methods. The samples were analyzed to determine if the material would classify as a hazardous waste under regulatory definitions promulgated in accordance with the Resource Conservation and Recovery Act (RCRA). If the soil and sediment mixture contained RCRA-defined hazardous waste, it would be subject to the Comprehensive Environmental Response, Compensation and Liability Act (CERCLA). Chemical analyses indicate that the sampled material does not contain hazardous chemical constituents above the levels permitted by RCRA regulations. The sediment was found to contain an estimated radioactivity inventory of approximately 2700 GBq (70 Ci) of /sup 90/Sr and 600 GBq (16 Ci) of /sup 137/Cs.

• Research Organization: Oak Ridge National Lab., TN (USA)
• DOE Contract Number: AC05-84OR21400
• OSTI ID: 5557785
• Report Number(s): ORNL/TM-10002; ON: DE86014420
• Country of Publication: United States
• Language: English

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RADIOACTIVE MATERIALS
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RADIOECOLOGICAL CONCENTRATION
RADIOISOTOPES
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SEDIMENTS
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STRONTIUM 90
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