He also argued the mercury levels in Stone's studies are not any higher than those found in surface soils across the state, and said the DEC keeps track of Lafarge's emissions.
"They've assessed our plant and our plant is safe," Reagan said.
Lafarge is in the process of implementing a massive modernization project at the Ravena plant, and recently resubmitted an updated environmental impact statement to the DEC.
The modernization is expected cost hundreds of millions, reduce the plant's emissions and cut its fuel use by 50 percent. A 12 to 18 month construction process should employ 800 temporary workers, said Lafarge representatives, and the modernization is on track for a 2014 completion.
Reagan said Lafarge would hold public information sessions as the project moves forward, and has launched an informational Web site at www.lafargeravenafacts.com, where all public documents related to the modernization are downloadable.