The Energy Department is tweaking its plan for handling low-level radioactive waste at the Hanford site in Washington state by adding a step to separate and temporarily store highly radioactive cesium.
The federal Hanford Superfund site in Washington state was contaminated with radioactive waste from research and weapons production operations decades ago.
The Jan. 25 amendment modifies the agency’s 2012 plan for disposing of low-level radioactive waste, which makes up about 90 percent of the waste stored at the site’s underground tanks, according to the Nuclear Regulatory Commission.
Glass-Like Substance
As part of the Energy Department’s plan, low-level ...
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