A double-shelled tank holding more than 850,000 gallons of highly radioactive wastes may be leaking through both of its protective layers at the Hanford nuclear reservation in Eastern Washington.

For the first time, a leak of highly radioactive waste has been detected from a double-shelled tank at the Hanford Nuclear Site in central Washington state.

California’s mandate to close single-walled tanks by Dec. 31, 2025, remains in force as legislative efforts to ease the transition stall ...

When Tank AY-102 was emptied, leaks were revealed in two welds on the bottom of the inner wall, Trenchard said. In addition, corrosion appeared to have left pits in the floor of the inner wall, he ...

A leak from the inner hull of AY-102, an old double-wall storage tank, was first discovered in 2011. But it was very slow, and would result in the waste drying up, leaving a residue on the inside ...

RICHLAND — Inspectors at the Hanford Nuclear Reservation in south-central Washington state have found at least seven leaks in the site’s oldest double-walled radioactive waste storage tank ...