Understanding TENORM and Drilling Waste Exposure
TENORM refers to naturally occurring radioactive materials whose concentration or distribution has been altered by human activities, often becoming more hazardous as a result. In the oil, gas, and mining industries, drilling muds and sludges can accumulate contaminated particles, scales, or residues that contain elevated levels of radioactive elements. Exposure can occur during drilling operations, waste handling, transport, or disposal. Determining whether waste is TENORM requires laboratory testing, chain-of-custody documentation, and an assessment of how waste was stored or managed. These technical facts influence potential liability and the types of claims that may be brought.
Pathways of exposure include direct contact with contaminated materials, inhalation of dust or aerosols during handling, and secondary contamination of soil or groundwater affecting nearby properties. Employers, waste haulers, disposal facilities, and contractors may have differing responsibilities depending on contracts, permits, and regulatory oversight. Gathering employment records, safety logs, incident reports, and environmental test results is essential to building a case. Early steps often include medical evaluation, site testing, and preserving any physical samples or documentation that can demonstrate the extent and timing of exposure and identify potentially liable parties.
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