The objectives of the survey were to (1) obtain national estimates of high-probability occurrences of elevated levels of radioactive materials in sludge and ash at POTWs, (2) estimate how much radioactive contamination comes from NRC and Agreement State licensees and how much from naturally occurring radioactivity, and (3) support rulemaking decisions by NRC and EPA.
You will need Adobe Reader to view some of the files on this page. See EPA’s About PDF page to learn more.- Final Report: ISCORS Assessment of Radioactivity in Sewage Sludge: Radiological Survey Results and Analysis (PDF)(228 pp, 2 MB, February 2005, 832-R-03-002)