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Happenings

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Hanford Cold War

1946


12 March 1946- President Truman Announced the Cold War

1 August 1946- Atomic Energy Act Passed

1947


1947- 10 Year Expansion Began at Hanford

1948


October 1948- Twenty Eight Pounds of Uranium Leaked into Columbia

1948- First Radiation Safety Implemented at Hanford Site

1949


29 August 1949- The Soviet Union Detonated its First Bomb

December 1949- Operation Green Run Released 8,000curies of Radiation

1950


1950- First Cold War Expansion of Hanford

1951


January 1951- First of 119 Nuclear Tests Conducted at Nevada Test Site Began

January to July 1951- Broken Iodine Filters Leaked over 20,000curies of Iodine-131 into Atmosphere

1952




1953


July to September 1953- 250curies of Ruthenium Radiation Released at Hanford

8 December 1953- President Eisenhower Gave Atoms for Peace speech to UN

1953- Second Cold War Expansion of Hanford

1954


January 1954- Hanford Leaked 300curies of Ruthenium-106

30 August 1954- Eisenhower Signed New Atomic Energy Act

1 March 1954- Castle Bravo Test in Bikini Islands

1955


1955- Last Two Reactors Built at Hanford

March 1955- 200curies of Iodine-131 Released from Hanford

1956


1956- Purex Began Operations at Hanford


1957





1958





1959


May 1959- Construction of the N Reactor Began


1960


1960- Construction of the Plutonium Recycle Test Reactor Began


1961





1962


April 1962- Z Plant Released over 1,000curies of Radiation in 3 Days


1963


5 August 1963- The Limited Test Ban Treaty is Signed

26 September 1963- President Kennedy Broke the Ground for Hanford's Electric Plant

September 1963- 70curies of Iodine 131 Released at Hanford


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