Dozens of workers in recent years have reported being sickened by chemical vapors while working near the tanks.
The Energy Department estimates it will cost $110 billion to finish environmental cleanup work at the Hanford nuclear reservation.
The U.S. Department of Labor says Washington River Protection Solutions violated federal rules by firing the worker after she raised questions about safety. The company says her concerns over environmental issues did not play a role in her termination.
Hanford tank farm workers met Wednesday night in Richland to discuss chemical vapors. There have been 38 exposures since March. Workers call it an epidemic. With little they say being done by their bosses, they're banding together looking for solutions to stay safe.
Hanford contractor Washington River Protection Solutions says five of the workers reported symptoms of vapor exposure, while the other was sent for evaluation as a precaution.
Hanford contractor Washington River Protection Solutions says the site's C Farm was evacuated as a precaution. The employees were cleared to return to work.
Hanford contractor Washington River Protection Solutions has asked Savannah River National Laboratory to examine vapor management and worker protection measures at the site.
The state sent a letter Wednesday to the U.S. Department of Justice asking to start a 40-day period of negotiations under the terms of a federal court agreement with the Department of Energy.
Exposure to potentially harmful chemical vapors sent 26 workers at the Hanford Site to a Richland hospital or an on-site medical clinic in the two-week period starting March 19. For the first time, two of those workers talk on camera about their experience.
The "Ranger in Your Pocket" website provides first-hand accounts of life at the Hanford site and includes room-by-room information on the B Reactor.
Washington River Protection Solutions says employees working at the site's A Farm Complex will wear the equipment while the company looks for the source of the chemical vapors.
Hanford contractor Washington River Protection Solutions says all the workers have been cleared by doctors. The company says it is taking steps to prevent employees from being exposed to chemical vapors.
The employees smelled a chemical odor and reported nose and throat irritation and headaches. All six were cleared to return to work.
Gov. Jay Inslee and Attorney General Bob Ferguson released a new plan for the Hanford Site
The U.S. Department of Energy has released its alternative to Gov. Jay Inslee and Attorney General Bob Ferguson's plan to clean up Hanford waste.
A total of 18 Hanford workers have been treated for exposure to chemical vapors in just the past eight days. It has many wondering if there's a new threat at the tank farm site.
Three employees of a Hanford contractor were given medical evaluations after being exposed to vapors in a tank farm. Workers had been evacuated from a farm Tuesday after several reported smelling chemical vapors.
Washington River Protection Solutions, a contractor at the Hanford site, says two of its employees were taken to a hospital after they complained of coughing and throat irritation.
The state's administrative order would require the federal government to begin pumping nuclear waste out of the leaking tank 18 months sooner than the Department of Energy proposed.
The Department of Energy says the Waste Sampling and Characterization Facility at the Hanford site will close within a year. According to DOE, using offsite labs to analyze waste samples will save around $12 million a year.
Gov. Jay Inslee and U.S. Energy Secretary Ernest Moniz met Monday morning to discuss the Department of Energy's draft cleanup plan, but Inslee released a statement saying the proposal fell short of what the state requested.
The group Hanford Challenge is criticizing the Department of Energy's plan to take at least two years to pump out the leaking nuclear waste storage tank at the site.
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.