Question: Plutonium from the Hanford Site comes film which U.S. state?

Context paragraphs:
Yakima Ridge: Yakima Ridge is a long anticline mountain ridge in Yakima County and Benton County in the U.S. state of Washington.  From its western end just north of the city of Yakima, the ridge runs east-southeast through the Yakima Training Center to its eastern end at Hanford Reach National Monument and the Hanford Site.  Yakima Ridge is paralled on the north by Umtanum Ridge and on the south by the Rattlesnake Hills.  Moxee Valley and Black Rock Valley lie south of Yakima Ridge.

Washington State Route 24: State Route 24 (SR 24) is a 79.23 mi long state highway in the U.S. state of Washington.  Beginning at an interchange with Interstate 82 (I-82) in Yakima, the highway travels east into the Yakima highlands before turning north at the Hanford Site to cross the Columbia River on the Vernita Bridge.  From the crossing, the highway travels east through the Hanford Reach National Monument and turns north to end at SR 26 in Othello.  The highway was known as Secondary State Highway 11A (SSH 11A) from 1937 to 1964 and was originally routed through the Hanford Site until the 1940s.  The Vernita Bridge was completed in 1965 along with the route to Othello north of the Hanford Reach and paved in the 1970s.

Fat Man: "Fat Man" was the codename for the atomic bomb that was detonated over the Japanese city of Nagasaki by the United States on 9 August 1945.  It was the second of the only two nuclear weapons ever used in warfare, the first being Little Boy, and its detonation marked the third-ever man-made nuclear explosion in history.  It was built by scientists and engineers at Los Alamos Laboratory using plutonium from the Hanford Site and dropped from the Boeing B-29 Superfortress "Bockscar".  For the Fat Man mission, "Bockscar" was piloted by Major Charles W. Sweeney.

Hanford Reach National Monument: The Hanford Reach National Monument is a national monument in the U.S. state of Washington.  It was created in 2000, mostly from the former security buffer surrounding the Hanford Nuclear Reservation (Hanford Site).  The area has been untouched by development or agriculture since 1943.  Because of that it is considered an involuntary park.

Plutonium Finishing Plant: The Plutonium Finishing Plant (PFP), also known as 'Z Plant', was part of the Hanford Site nuclear research complex in Washington, US.

Vernita Bridge: The Vernita Bridge is a bridge on Washington State Route 24 over the Columbia River between Grant County and Benton County, located approximately 10 mi south of Desert Aire and Mattawa, Washington.  The bridge is in the Hanford Reach National Monument near the Hanford Site.

Bismuth phosphate process: The bismuth-phosphate process was used to extract plutonium from irradiated uranium taken from nuclear reactors.  It was developed during World War II by Stanley G. Thompson, a chemist working for the Manhattan Project at the University of California, Berkeley.  This process was used to produce plutonium at the Hanford Site.  Plutonium was used in the atomic bomb that was used in the atomic bombing of Nagasaki in August 1945.  The process was superseded in the 1950s by the REDOX and PUREX processes.

Umtanum Ridge: Umtanum Ridge is a long anticline mountain ridge in Yakima County and Kittitas County in the U.S. state of Washington.  It runs for approximately 55 miles east-southeast from the Cascade Range, through the Yakima Training Center to the edge of the Columbia River at Priest Rapids Dam and Hanford Reach.  The eastern end of Umtanum Ridge enters Hanford Reach National Monument and the Hanford Site.  Umtanum Ridge is paralleled on the north by Manastash Ridge and on the south by Yakima Ridge.  The Yakima River cuts through the ridge at the Umtanum Ridge Water Gap.

Green Run: The "Green Run" was a secret U.S. Government release of radioactive fission products on December 2–3, 1949, at the Hanford Site plutonium production facility, located in Eastern Washington.  Radioisotopes released at that time were supposed to be detected by U.S. Air Force reconnaissance.  Freedom of Information Act (FOIA) requests to the U.S. Government have revealed some of the details of the experiment.  Sources cite 5500 to of iodine-131 released, and an even greater amount of xenon-133.  The radiation was distributed over populated areas, and caused the cessation of intentional radioactive releases at Hanford until 1962 when more experiments commenced.

Hanford Site: The Hanford Site is a mostly decommissioned nuclear production complex operated by the United States federal government on the Columbia River in the U.S. state of Washington.  The site has been known by many names, including: Hanford Project, Hanford Works, Hanford Engineer Works and Hanford Nuclear Reservation.  Established in 1943 as part of the Manhattan Project in Hanford, south-central Washington, the site was home to the B Reactor, the first full-scale plutonium production reactor in the world.  Plutonium manufactured at the site was used in the first nuclear bomb, tested at the Trinity site, and in Fat Man, the bomb detonated over Nagasaki, Japan.

Supporting paragraphs: Bismuth phosphate process Hanford Site
Answer: the U.S. state of Washington.