Officials say the nuclear waste is leaking between the walls of a double-walled storage tank. None of the waste is believed to have escaped into the nearby soil.
For months now the KING 5 Investigators have exposed a Hanford contractor that may be putting your safety at risk. Action News is teaming up with KING 5 Seattle to dig deeper into Hanford's dirty secrets.
The leak of AY-102 might make you wonder why this tank is so important. Continuing the investigation into Hanford's dirty secrets, Susannah Frame looked at why this double-shell tank is such a single risk.
Together with the KING 5 investigators in Seattle, Action News brings you new reports on how much was spent on the broken tank in the middle of furloughs and layoffs. The federal government says it was $2.5 million. A report by the contractor says it was a lot more.
Susannah Frame looked into what would happen if a leak like that was ever discovered. She found Washington River Protection Solutions had no plan in place when an alarm signaled a double-shell tank was leaking dangerous waste.
KING 5 investigator Susannah Frame looked at whether bonus money is trumping safety at Hanford.
Holding a parade usually requires a very simple permit. Pose a few questions and you're on your way. Gary Chittim found that same permit can move nuclear waste on and off the Hanford site.
The investigative arm of congress is not happy with the way your dollars are being spent. Gary Chittim found the government accountability office has some real concerns about the agency running the cleanup at the site.
During the months WRPS looked the other way when red flags came in that the tank was leaking, Susannah Frame found that the company continued to spend millions on tank upgrades for work that is now useless because the tank is broken.
So who knew what about the leaking tank - and when? Susannah Frame exposes how the truth about the tank was hidden from the Hanford advisory board.
Is there anything the state can do to step in and take control of the risks created by the federal government? Susannah Frame shows you how the state is demanding more action or yet another lawsuit over Hanford's dirty secrets.
KING 5 investigators spent months looking into decisions made by Washington River Protection Solutions and whether it looked the other way when evidence showed there was a major problem on their hands.
The Department of Energy says it isn't likely to make two important deadlines at Hanford. This could delay the transfer and treatment of radioactive waste.
The Obama administration released its proposed Hanford cleanup budget for the 2015 fiscal year Tuesday - and it's a sizable cut. KEPR looked into how the decrease will affect the cleanup and the Tri-Cities' economy.
New documents show some newer nuclear waste storage tanks at the Hanford site could leak.