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The Boston Globe

West

Cleanup systems in place at W.R. Grace site

Nearly 30 years after the W.R. Grace & Co. property in Acton and Concord was designated as a national Superfund hazardous-waste site, environmental officials have removed all contaminated sediment and constructed new ground-water treatment systems.

The US Environmental Protection Agency recently announced it has finished its construction work at the site, but will continue to monitor activity there for the foreseeable future.

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