The price tag on the cleanup exceeded $540 million last year. It will cost an estimated $64 million and take at least four more years for the EPA to finish its work, according to documents released Monday. Even after that's done, hazardous asbestos will remain beneath the soil and in the walls of many houses, where it was used for insulation. Health workers have estimated that as many as 400 people have died and almost 3,000 have been sickened from exposure in Libby and the surrounding area.
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