"… sites in the EPA's Region 3.In Tyco International's case, its subsidiary, Earth Tech, is among the EPA's top 10 contractors between 1998 and 2005. One site cov …"

"… EPA's top 10 contractors between 1998 and 2005. One site covered in one of Earth Tech's contracts is the American Chemical Service site in Griffith, Ind. Three …"

"… es are listed by the EPA as possible polluters on the site.A spokesman for Earth Tech declined to comment.It is not known whether companies other than Lockheed, …"

"… ent.It is not known whether companies other than Lockheed, Halliburton and Earth Tech are receiving contracts to clean up Superfund site pollution that they mig …"