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This report lists specific instances of radioactively contaminated water leaks, spills, and overflows at numerous US nuclear facilities. The events range from small spills of a few gallons to large-scale leaks of hundreds of thousands of gallons, often involving tritium. Common causes include equipment failure, operator error, and pipe degradation, with contamination affecting soil, storm drains, and nearby water bodies such as the Mississippi River, Lake Michigan, and the Connecticut River.

The document catalogs numerous instances of radioactive water leaks and spills at US nuclear power plants, detailing events such as tank overflows, pipe ruptures, and the detection of tritium in groundwater. It lists specific units, dates, and the nature of the contamination, including the volume of water released and the remediation steps taken, such as soil excavation.