Results of the independent radiological verification survey at 79 Avenue E, Lodi, New Jersey (LJ091V)

摘要

Prior to remediation, thorium residues in excess of DOE applicable guidelines were found in the eastern comer of the backyard on property at 79 Avenue B, Lodi, New Jersey. Decontamination, which consisted of excavation and removal of contaminated soil, was performed by subcontractors under the direction of Bechtel National, Inc. The independent radiological verification survey described in this report was performed by the Measurement Applications and Development Group at Oak Ridge National Laboratory to verify that the final remedial action had reduced contamination levels to within authorized limits. The property at 79 Avenue B, Lodi, New Jersey, was thoroughly investigated outdoors for radionuclide residues. Surface gamma exposure rates were below guideline levels and comparable the area. The results of soil radionuclide analysis for all soil concentration measurements were below limits prescribed by DOE applicable guidelines for protection against radiation. Analysis of data contained in the post-remedial action report and results of this independent radiological verification survey by ORNL confirm that all radiological measurements fall below the limits prescribed by DOE guidelines established for this site. The property at 79 Avenue B successfully meets the DOE remedial action objectives.