Radioactive Materials in Biosolids: National Survey, Dose Modeling, and Publicly Owned Treatment Works (POTW) Guidance.

Discusses the radioactive materials in biosolids. Availability of three new documents concerning radio active materials in sewage sludge and ash from publicly owned treatment works (POTW); One of the documents which reports the results of a volunteer survey of sewage sludge and ash samples provided by 313 POTW; Second document which is a dose modeling document, using multiple exposure pathway modeling focused on a series of generic scenarios; Third document which is a guidance report providing recommendations on the management of radioactivity in sewage sludge and ash for POTW owners and operators; Explanation of how radioactive materials enter POTWs, provides criteria for evaluating levels of radioactive material in sludge and ash.