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DES outlines authority and testing plan for PFAS in air; Saint‑Gobain control permit, stack‑testing to follow
Summary
DES officials said Senate Bill 309 (2018) gave the department authority to control air emissions that contribute to groundwater or surface‑water PFAS contamination; DES issued a permit to Saint‑Gobain that required emissions controls and multi‑year testing and is preparing a state stack‑testing plan for bio‑waste and landfill gas devices.
Catherine (Kathy) Beam, administrator at the DES Air Resources Division, briefed the committee on DES authority and recent activity related to PFAS in air. She told the panel that Senate Bill 309 (2018) provided DES the specific authority to regulate air emissions that cause or “contribute to” PFAS violations in groundwater or surface water and authorized DES rulemaking in this area.
Saint‑Gobain and control permits. Beam said DES issued a permit to Saint‑Gobain Performance Plastics in Merrimack that required control technology and annual stack testing for three years; those tests demonstrated compliance while the…
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