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United States: Cleanup Begins in Worst Rocky Flats Room Cleanup workers entered one of the most contaminated rooms in the United States yesterday at the former Rocky Flats nuclear weapons plant in Colorado. The Energy Department sealed the room in the 1970s after nitric acid leaked out of vacuum pumps (see GSN, May 16). Two workers for Kaiser-Hill Co., the contractor hired by the United States to clean up the plant, spent 30 minutes coating the room with a substance to keep the area wet — reducing the chance that contamination would be released into the air — and cleaning debris. The workers wore single-use protective suits costing $1,200 each and used an air pump to breathe. The plant is scheduled to be cleaned and closed in 2006 (Associated Press, June 13).
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