Parts of the Southern California coastline have been eroding due to intense waves and flooding. This has brought renewed attention to nuclear waste stored at San Onofre’s closed power plant. Oceanographer Kim McCoy expressed concern about rising sea levels, storm waves, and El Niño, which could threaten the site’s seawall and nuclear waste canisters nearby.
Nuclear Waste Storage Safety Concerns
Experts believe the immediate risk of erosion affecting the nuclear waste storage is low. Southern California Edison, which operates the site, has assured the California Coastal Commission that waste will be relocated to higher ground if sea levels and erosion pose risks. Recent waves spurred by Hurricane Marie have raised concerns about the future of the radioactive spent fuel at the location.
James Day, a geology professor, stated that while the situation is managed now, long-term planning is essential. “The waste lasts for hundreds, if not thousands of generations,” he warned.
The twin domes of San Onofre appear operational from a distance. However, the site is undergoing demolition. Former structures have been dismantled since issues with steam generators led to the plant’s closure in 2013. The radioactive core waste remains on site for the foreseeable future.
Seismic and Environmental Risks
San Onofre is built on young rocks in a seismically active area. Any compromise of beach slopes could make the site vulnerable to tsunamis. Greg Jaczko, former Nuclear Regulatory Commission head, commented on the need for increased monitoring by Edison. The current system claims to withstand major natural events, with a robust setup above Pacific Ocean bluffs.
Efforts to Relocate Nuclear Waste
Utilities, including Edison, have previously contributed to a federal fund for permanent nuclear waste storage solutions. However, plans to use Yucca Mountain in Nevada fell through due to local opposition. As a result, utilities sue the federal government to recover storage costs, impacting taxpayers significantly.
There is hope for new “campus” solutions proposed by the Department of Energy, offering states funds to host storage facilities. These would accommodate waste from existing and new reactors.
States like Utah and Tennessee are in discussions with Edison regarding potential participation. Nonetheless, local community acceptance remains tricky. Utah’s community members express suspicion about becoming a waste site.
International Examples
Meanwhile, Finland leads in establishing a deep, permanent nuclear waste repository. Sweden and Switzerland are progressing on similar facilities. Lawmakers and Edison aim for U.S. comparable sites within 10 to 15 years, potentially moving the waste from San Onofre.
If relocation is not possible, Edison might need to replace canisters as early as 2103, when they reach their designed lifespan limits.