Draft Air Permit Available for Public Comment

Date: May 19, 2023

On May 19, 2023, NHDES released a draft state permit to operate for Saint-Gobain Performance Plastics (SGPP) in Merrimack. The draft permit incorporates all regulatory requirements for the facility for manufacturing of polytetrafluoroethylene (PTFE) coated fabrics and films including operation of air pollution control equipment for the purposes of removing per- and polyfluoroalkyl substances (PFAS).

The public comment period is open through June 28, 2023 and a public hearing is scheduled for June 21, 2023 at 6:00 PM, at the Merrimack High School Little Theatre in Merrimack, NH and online. Interested parties may participate remotely by registering for the Public Hearing on Microsoft Teams.

The draft permit and supporting documents related to this action can be accessed below and electronically through the OneStop Data and Information portal (DES Interest ID: 3301100165) at the following links: