The operator of a nuclear facility in Minnesota said on Thursday the plant suffered a leak last November of water containing radioactive tritium, but that contamination was largely limited to the plant itself.
it has"recovered about 25 percent of the tritium released and will continue recovery over the course of the year".Tritium is a radioactive isotope of hydrogen that is a byproduct of the production of electricity at nuclear plants. It can also occur naturally in the environment.
Monticello is 63 kilometers northwest of Minneapolis, the largest city in the state, and also where Xcel Energy has its headquarters.It said it contained the leak by diverting water to an in-plant treatment facility, and will need to build"large storage tanks… to store recovered water until it can be treated and reused."it is conducting more frequent tests from some two dozen groundwater monitoring wells in and around the site.
The US has suffered one major nuclear accident in its history – the meltdown of the Three Mile Island reactor in Pennsylvania on March 28, 1979. Some 92 nuclear reactors provide power to tens of millions of US homes. Smaller accidents have occurred over the years but usually contained with localized impacts.
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