According to a Bangor Daily News article, a federal judge is expected to decide next year on how to proceed with a court-ordered cleanup of mercury dumped in the Penobscot River for decades by the former HoltraChem chemical plant in Orrington. However the method of mercury removal is still being considered. According to Sean Smith, UMaine assistant read more Smith quoted in BDN story on Penobscot River remediation project in Orrington