Saint-Gobain PFAS Water Connection Agreement

AG: New Hampshire Press Releases

Filed March 31st, 2026

Detected March 31st, 2026

Summary

NH DES and Town of Londonderry reached agreement with Saint-Gobain Performance Plastics under the 2018 consent decree. Saint-Gobain will contribute approximately $1.71 million toward a $4.3 million watermain extension on High Range Road in Londonderry, enabling approximately 350 properties to connect to a community water system to address PFAS contamination.

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What changed

Saint-Gobain Performance Plastics Corporation will pay approximately $1.71 million toward extending a watermain along High Range Road in Londonderry, from Royal Lane north to Alexander Road. This section will connect approximately 350 properties on the west side of High Range Road to Pennichuck Water Works community water system, with additional connections available for properties on the east side. The project implements Saint-Gobain's obligations under a 2018 consent decree addressing PFAS contamination in the community.

Affected residents with private drinking wells exceeding NH or EPA Maximum Contaminant Levels for PFAS should apply to the PFAS Removal Rebate Program for Private Wells administered by NH DES. Eligible homeowners can receive up to $5,000 for water treatment system installation or up to $10,000 for public water service connection. The Town of Londonderry's portion of the $4.3 million total construction costs will be funded through the New Hampshire Drinking Water and Groundwater Trust Fund.

What to do next

Affected residents on High Range Road in Londonderry whose private well water exceeds PFAS Maximum Contaminant Levels should apply to the PFAS Removal Rebate Program
Homeowners not eligible for safe drinking water alternatives from Saint-Gobain should verify eligibility for reimbursement up to $10,000 for service connection to public water system

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Deal Reached with Saint-Gobain Performance Plastics to Connect Hundreds of Homes to Public Water, Address PFAS Concerns

Press Release For Immediate Release Date: March 31, 2026

Contact Michael S. Garrity, Director of Communications
(603) 931-9375 | michael.s.garrity@doj.nh.gov Melissa E. Fales, Assistant Attorney General, Environmental Protection Bureau
(603) 271-1222 | Melissa.E.Fales@doj.nh.gov

Deal Reached with Saint-Gobain Performance Plastics to Connect Hundreds of Homes to Public Water, Address PFAS Concerns

Concord, NH – Attorney General John M. Formella and New Hampshire Department of Environmental Services Commissioner Robert Scott announce that the State of New Hampshire Department of Environmental Services and the Town of Londonderry have reached an agreement with Saint-Gobain Performance Plastics Corporation (Saint-Gobain) to work together to extend a watermain up High Range Road in Londonderry from Royal Lane north to Alexander Road.

“This agreement is another important step in our efforts to hold Saint-Gobain accountable and assist Londonderry residents affected by PFAS contamination,” said Attorney General Formella. “We remain steadfast in our efforts to protect access to clean water for all Granite Staters.”

Under the agreement, Saint-Gobain Performance Plastics Corporation will pay approximately $1.71 million toward the project, holding up its obligations under a 2018 consent decree addressing PFAS contamination in the community. Additionally, the Town of Londonderry’s portion of the approximately $4.3 million in construction costs will be funded through the New Hampshire Drinking Water and Groundwater Trust Fund, administered by the New Hamshire Department of Environmental services and the Drinking Water and Groundwater Trust Fund Advisory Commission.

Installation of this section of watermain will allow approximately 350 properties on the west side of High Range Road to be connected by Saint-Gobain to a community water system operated by Pennichuck Water Works. The watermain will also facilitate additional community water system connections by homeowners on the east side of High Range Road if necessary.

Residents who are not eligible for a safe drinking water alternative from Saint-Gobain and whose residential private drinking well water has PFAS concentrations above one or more of the New Hampshire or EPA Maximum Contaminant Levels (MCLs) are encouraged to apply to receive reimbursement from the PFAS Removal Rebate Program for Private Wells up to $5,000 for the installation of a water treatment system design to remove PFAS or up to $10,000 for a service connection to a public water system.