Anderson v. Cryovac was a federal lawsuit concerning toxic contamination of groundwater in 1986 in Woburn, MA. The residents of Woburn sued Beatrice Foods, the operator of a tannery; Cryovac, a subsidiary of W. R. Grace and Company; and UniFirst, a laundry service, for dumping chemicals that contaminated nearby groundwater. The New England Plastics (NEP) property was one of several linked to the dumping of these chemicals. The occurrence of a cancer cluster and other negative effects on health led to revelations of water polluted primarily with trichloroethylene and perchloroethylene. Ultimately W.R. Grace was indicted by a grand jury of lying to the EPA about its usage and disposal of toxic waste. The sites remain contaminated despite a $21 million cleanup effort. And no one, not even the U.S. Environmental Protection Agency which monitors the site as part of the federal Superfund program, knows whether humans are still being exposed to its witch’s brew of chemicals, federal records show.