Rev. 2.1
Final Draft for Comment
February 2007
The purpose of this Interim Policy and Guidance Pending Rulemaking for Control and Disposition of Technologically-Enhanced Naturally Occurring Radioactive Materials in Colorado is to provide disposal policy, general guidance and suggested criteria for the control and release of technologically enhanced naturally occurring radioactive material (TENORM). Radioactivity is naturally present in rocks, soils, surface water and groundwater at trace concentrations. The radioactivity in TENORM is due to a few predominant radionuclides associated with two radioactive decay series, namely uranium-238 and thorium-232 and their respective decay products, and potassium-40. The interim policy describes a tiered, graded approach acceptable to the Colorado Department of Public Health and Environment (the Department) for disposal or reuse of TENORM, primarily from the treatment of drinking water.