Hanford Site

Defunct American nuclear production site

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July 2024 The Department of Energy announced plans to construct a 1 GW solar array at the Hanford Site.
2023 Continued environmental cleanup with over 10,000 workers still employed in remediation activities.
2022 Cocooning of KE and KW Reactors is completed.
January 2022 Demolition work on the Plutonium Finishing Plant was completed.
June 29 2021 Hanford recorded Washington state's highest temperature, marking a significant climatic event in the region's meteorological history.
April 2021 A potential radioactive leak was reported at the site, continuing the ongoing challenges of cleanup and waste management.
2020 The Washington Department of Ecology issued the Department of Energy a $1.065 million penalty for restricting direct access to facility data required for regulatory oversight.
2018 The American Physical Society designated the LIGO observatories as historic sites.
July 2017 Demolition work on the Plutonium Finishing Plant began.
2016 Gravitational waves were detected at the LIGO Hanford Observatory.
November 10 2015 B Reactor becomes part of the Manhattan Project National Historical Park.
March 2014 The Department of Energy announced further delays in the construction of the Waste Treatment Plant, affecting the schedule for removing waste from the tanks.
2012 N Reactor is cocooned.
2011 The Department of Energy 'interim stabilized' 149 single-shell tanks by pumping nearly all liquid waste into 28 newer double-shell tanks.

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