Experts Voice Concerns Over Long-Term Safety of Nuclear Waste at San Onofre

San Diego, CA, August 31, 2026 —

Experts are highlighting potential long-term safety issues associated with the nuclear waste currently stored at the San Onofre Nuclear Generating Station (SONGS), situated near San Diego, California.

The radioactive material poses a hazard that could persist for thousands of years, according to these experts. The storage site’s location presents several environmental and geological risks. Proximity to the Pacific Ocean exposes the facility to coastal erosion, storm surges, and potential damage from severe weather events.

Furthermore, the area is seismically active, meaning the waste storage facilities must withstand the threat of earthquakes. Interstate 5, a major transportation artery, is also located nearby, adding another layer of complexity to emergency preparedness and potential impact scenarios.

These concerns are amplified by the ongoing challenges in establishing a permanent federal repository for spent nuclear fuel. The absence of a long-term national disposal solution means that nuclear waste, like that at San Onofre, remains stored at reactor sites for extended periods, raising questions about the adequacy of current safety measures against cumulative environmental degradation and unforeseen events over millennia.

The specific contractor responsible for the waste management and the exact timeline for ongoing monitoring or potential mitigation efforts were not detailed in the information provided. The long-term hazardous nature of the waste and the identified environmental risks are central to the ongoing discussions among experts regarding the site’s safety.

Story summarized from the original created by Thomas Murphy • Times of San Diego on timesofsandiego.com, see more information here.

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