Progress update on Saint-Gobain implementation of alternate water remedies

In Fall 2022, Saint-Gobain Performance Plastics (SGPP) began implementation of multiple phases of work to permanently provide safe drinking water to hundreds of properties within portions of the towns of Bedford, Hudson, Litchfield, Londonderry, and Merrimack, New Hampshire that are located inside the 2018 Consent Decree Outer Boundary. This included design work for waterline extensions and connections to municipal water where existing water mains are present, as well as the installation of Point-of Entry Treatment (POET) systems. 

In November 2023, SGPP’s contractor began water main and curb stop installations on Rocky Hill Road, Shirley Way, and Hillcrest Road north and west of Meadowbrook Lane in the town of Litchfield. This project was substantially completed in the Fall 2024 with final paving and restoration work planned for the Spring 2025. Additional water main extensions and connections to existing water mains for areas of Merrimack and Bedford began in July 2024 and continued through December. Construction of new water mains was completed before the end of 2024 and work associated with water service connections to water mains is expected to start back up in Spring 2025 after the ground thaws.

SGPP began installation of POETs in December 2022 and as of March 2025, approximately 690 POET systems have been installed. All homeowners have now been notified of their POET system eligibility and assigned a contractor. If residents have been previously notified of their eligibility for a POET but have not been assigned a contractor, they are urged to contact Saint-Gobain at (800) 742-8498. 

SGPP continues to sample drinking water from properties that are located inside the 2018 Consent Decree Outer Boundary. If laboratory analytical results from the ongoing drinking water sampling effort identify new exceedances of state water quality standards, bottled water is provided as an interim measure and permanent alternate water remedies (municipal water/POETs) are then proposed to NHDES by Saint-Gobain. To date, twenty-three attachments to the Term Sheet have been submitted to NHDES on behalf of Saint-Gobain with proposals for alternate water. The most recent, Term Sheet Attachment 23, was approved by NHDES in January 2025. These attachments have designated 768 properties for installation of POET systems, 193 properties for water service connections, and 352 properties for an evaluation of a water main extension and service connections.