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New Hampshire Department of Environmental Services

Media Center

DATE: July 21, 2016
CONTACT: Jim Martin, 603 271-3710

Saint-Gobain Stack Emissions Testing Results Received

Concord, NH – The New Hampshire Department of Environmental Services (DES) announced today that results of stack emissions testing of the Saint-Gobain Performance Plastics, Inc. facility in Merrimack, New Hampshire, indicate that small amounts of perfluorooctanoic acid (PFOA) are being emitted from the facility. The stack emissions testing conducted on May 2 and 3, 2016, showed low level concentrations of perfluorochemicals (PFCs), including PFOA, being emitted, which would translate to less than 2 ounces of PFOA being released per year. These emissions do not violate any ambient air quality standard, either state or federal.

Potential sources of the PFOA may include: chemicals supplied to Saint-Gobain for manufacturing purposes and residual materials contained within the stack emissions at the plant. Saint-Gobain has agreed to clean these residues from the stacks and perform new emissions testing in early August. NHDES will observe the testing from start to finish. NHDES is also seeking formulation details from Saint-Gobain's suppliers to determine whether the chemicals being supplied to the company contain PFOA or perfluorooctane Sulfonate (PFOS).

For more information regarding NHDES's investigation into PFCs found in southern New Hampshire drinking water, please visit or contact Jim Martin, NHDES Public Information Officer, at 603 271-3710.

NH Department of Environmental Services | 29 Hazen Drive | PO Box 95 | Concord, NH 03302-0095
(603) 271-3503 | TDD Access: Relay NH 1-800-735-2964 | Hours: M-F, 8am-4pm

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