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Saint‑Gobain begins phased demolition; DES says contaminated debris will be removed and some concrete scarified
Summary
State regulators reported that demolition of the former Saint‑Gobain facility is underway in 2025, with plans to remove above‑ground structures, recycle structural steel, dispose of PFAS‑impacted debris out of state, conduct concrete scarification in places and continue remedial planning and groundwater monitoring.
Andy (Department of Environmental Services, Air Resources and site oversight) updated the commission on Feb. 14 that Saint‑Gobain completed cessation of manufacturing in 2023 and began phased demolition in late 2024; state staff have been receiving periodic progress reports.
“Initial demolition pertained to the low‑bay portion of the building,” Andy said. He reported crews removed interior overhead gantry cranes and that the work planned for 2025 includes dismantling the high‑bay portion in sections. He said structural steel will be removed for scrap recycling, and portions of demolition debris that are “significantly impacted by PFAS contamination” will be shipped to out‑of‑state hazardous waste disposal facilities.
Concrete and scarification: DES staff described a site practice of scarifying concrete floor surfaces — mechanically removing a thin surface layer — to reduce surficial contamination…
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