Lauren Stanforth is reporting for the Times Union the Taconic plastics plant is launching an in-depth investigation into the extent of PFOA contamination around its Route 22 plant in Petersburgh. The investigation begins more than two years after the company first alerted the state to concerns about contamination around its property. The company, whose official name is Tonoga Inc., will begin soil borings and installing groundwater wells to determine the true extent of contamination of perfluorooctanoic acid, a chemical used to make heat-resistant coatings. In Jan. 2016, Taconic contacted the state Department of Environmental Conservation and Health Department about PFOA contamination at its manufacturing facility following news that the nearby village of Hoosick Falls public water supply had been contaminated with PFOA since at least 2014. The state DEC announced last week the investigation's findings will be released in a report sometime in 2019. That reported will be followed by a study suggesting ways to clean up the contamination. Read the full story in the Times Union.