A federal grand jury has indicted 10 current or former managers and supervisors for a contractor at the nation's most contaminated nuclear site, accusing them of enabling timecard fraud there.

One of the contractors charged with cleaning up the nation's most contaminated nuclear site has agreed to pay an $18.5 million civil and criminal penalty related to a time card fraud scheme, under a settlement agreement announced Wednesday.

Nuclear engineers from China to South America and around the world are turning their attention to fast reactors, which consume the solid waste. More testing, however, is needed before the reactors can be developed; Hanford's defunct-Fast Flux Test...

The new chairman of a key Senate committee asked for a federal investigation Tuesday into leaking underground waste tanks at the nation's most contaminated nuclear site.

Six underground tanks that hold a brew of radioactive and toxic waste at the nation's most contaminated nuclear site are leaking, federal and state officials said Friday.

The Democratic Senator from Oregon had planned his visit weeks ago but news of the leak certainly upped the urgency.

The nation's most contaminated nuclear site - and the challenges associated with ridding it of its toxic legacy - will be a subject of upcoming hearings and a higher priority in Washington D.C., a key lawmaker said Tuesday.

A large, double-walled tank of waste at the nation's most contaminated nuclear site is leaking into its outer shell, raising new concerns about the long-term storage of the radioactive brew and for the effects on the environment if the waste escapes.

CREHST Museum is offering for sale a 1953 CMC Hanford bus, $15,000 or best offer.

Workers at south-central Washington's Hanford nuclear reservation have completed their first full reactor area cleanup, with full remediation of the area around F Reactor.

Just two years ago, drivers spent less than 250 hours traveling on Highways 240 and 395. But last year, that amount spiked to 627 hours behind the wheel.

Workers have started moving highly radioactive material, called sludge, away from the Columbia River, marking a significant milestone in the U. S. Department of Energy (DOE)’s cleanup of the Hanford Site in Washington State.

Emergency sirens will be activated for an emergency exercise on the U.S. Department of Energy's Hanford Site Thursday.