Nuclear Regulatory Commission May 2, 2005 – Federal Register Recent Federal Regulation Documents
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Availability of Interagency Steering Committee on Radiation Standards' Reports on Radioactivity in Sewage Sludge and Ash
This Federal Register notice announces the availability of two final reports, prepared by the Sewage Sludge Subcommittee of the Interagency Steering Committee on Radiation Standards (ISCORS), addressing radioactivity in sewage sludge and ash at publicly owned treatment works (POTWs). The first report, ``ISCORS Assessment of Radioactivity in Sewage Sludge: Modeling to Assess Radiation Doses,'' assesses the potential levels of radiation doses to people from radioactivity in sewage sludge, by modeling the transport of radioactivity from sludge into the local environment. The report also provides a complete description and justification of the dose assessment methodology. The second report, ``ISCORS Assessment of Radioactivity in Sewage Sludge: Recommendations on Management of Radioactive Materials in Sewage Sludge and Ash at Publicly Owned Treatment Works,'' is written for POTW operators. This report is intended to (1) alert POTW operators and others to the possibility of radioactive materials concentrating in sewage sludge and incinerator ash, (2) inform operators how to determine if there are elevated levels of radioactivity in their sludge, and (3) assist POTW operators in identifying further actions that may be taken to reduce potential radiation exposures from sludge and ash.
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