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Tests: 4 more workers contaminated at US nuke dump

March 31, 2014

CARLSBAD, New Mexico (AP) — The Department of Energy says tests show four more workers were contaminated with low levels of radiation during a leak at the U.S. government’s underground nuclear waste dump.

Officials also said Monday they’re planning to get a crew underground Tuesday for the first time since the Feb. 14 accident at the Waste Isolation Pilot Plant in southeastern New Mexico.

The DOE says a total of 21 workers received low doses of radiation, all well below levels deemed unsafe.

On Tuesday, the DOE said it plans to send a team of eight experts into the half-mile(kilometer) deep mine to begin setting up bases to start investigating what caused the leak.

The dump is America’s only permanent underground repository for low-level radioactive waste from nuclear weapons facilities.