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October 5, 2017

Crews inject grout into Hanford tunnel

SPOKANE (AP) — Workers at the Hanford Nuclear Reservation have started injecting grout into a partially collapsed tunnel that contains radioactive wastes left over from the production of nuclear weapons, the U.S. Department of Energy said Wednesday.

The grout is intended to improve the stability of the 360-foot-long tube, which dates to 1956, and help prevent any radioactivity from escaping into the environment.

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