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U.S. Nuclear Reactors

Fort St. Vrain

Platteville, Colorado
Local population: (10-mile radius)


High Temperature Gas-Cooled Reactor


Licensed to operate from 12/21/73-08/18/89


Public Service of Colorado

Safety Issues:

Year Plus Outages

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Related Links & Documents

09/18/2006   UCS documented the factors leading to the year-plus reactor outage that began in June 1984 in this case study for our Walking a Nuclear Tightrope report.  See details | Download the pdf (1.5 kb)

1991   Fission Stories #39: The Nuclear Regulatory Commission reported on natural gas wells and pipelines constructed between 1973 and 1983, some within 1,200 feet of the reactor building, without proper assessment of their potential threat to the nuclear plant.