Callaway Nuclear Generating Station
| Callaway Plant | |
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Containment building (center) and cooling tower (right) at Callaway Plant. (NRC picture)
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 Location of Callaway Plant in Missouri
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| Country | United States |
| Location | Auxvasse Township, Callaway County, near Steedman, Missouri |
| Coordinates | 38°45.7′N 91°46.8′W / 38.7617°N 91.7800°WCoordinates: 38°45.7′N 91°46.8′W / 38.7617°N 91.7800°W |
| Status | Operational |
| Commission date | December 19, 1984 |
| Operator(s) | Ameren Missouri |
| Nuclear power station | |
| Reactor type | pressurized water reactor |
| Reactor supplier | Westinghouse (Unit 1) |
| Cooling source | Missouri River |
| Cooling towers | 1 |
| Power generation | |
| Units operational | 1 x 1,300 MW |
| Make and model | 1 General Electric |
| Annual output | 9,372 GWh |
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Website www |
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The Callaway Plant is a nuclear power plant located on a 5,228-acre (2,116 ha) site in Callaway County, Missouri, near Fulton, Missouri. It began operating on December 19, 1984. The plant, which is the state's only commercial nuclear unit, has one 1,190-megawatt Westinghouse four-loop pressurized water reactor and a General Electric turbine-generator. It is owned by the Ameren Corporation and operated by subsidiary Ameren Missouri.
The Nuclear Regulatory Commission defines two emergency planning zones around nuclear power plants: a plume exposure pathway zone with a radius of 10 miles (16 km), concerned primarily with exposure to, and inhalation of, airborne radioactive contamination, and an ingestion pathway zone of about 50 miles (80 km), concerned primarily with ingestion of food and liquid contaminated by radioactivity.
The 2010 population within 10 miles (16 km) of Callaway was 10,092, an increase of 3.8 percent in a decade, according to an analysis of U.S. Census data for msnbc.com. The 2010 population within 50 miles (80 km) was 546,292, an increase of 15.0 percent since 2000. Cities within 50 miles include Fulton (11 miles to city center), Jefferson City (26 miles to city center), Columbia (32 miles to city center).
In 2014, the Nuclear Regulatory Commission tests found contaminated ground water nearby the site.
According to Ameren, Callaway produces about 19 percent of Ameren Missouri's power. In 2001, Callaway set a plant record for capacity utilization, producing 101.1 percent of its rated electrical output, ranking it among the world's top reactors, according to the Energy Information Administration. The plant produces 1,279 electrical megawatts (MWe) of net power, and has run continuously for over 500 days between refuelings. Callaway is one of 26 nuclear power plants in the United States to achieve a continuous run of over 500 days.
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