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DES outlines monitoring progress and defends site‑specific approach to PFAS‑contaminated soils
Summary
DES reported progress on POET installations, drinking‑water sampling and remedial investigations tied to the Saint Gobain site, and defended case‑by‑case soil management—including moving excess soil to an adjacent parcel with activity and use restrictions—while commission members pressed for stricter off‑site disposal.
The New Hampshire Department of Environmental Services told the Legislative Study Commission on Jan. 9 that remediation work tied to the Saint Gobain PFAS releases is progressing but that some soil‑management choices will be site‑specific, not uniform removals. "We expect to receive [the decommissioning] report at the end of this month," DES representative Mike Clark said, adding that written notes distributed to the commission supply additional detail.
DES said 805 point‑of‑entry treatment (POET) systems had been installed as of Jan. 7, and 774 of those systems have completed verification and are considered officially complete. The company performing remediation has sampled approximately 1,529 properties eligible under its groundwater management‑zone work plan; DES said properties that exceed the applicable groundwater quality standard for PFOA have been offered bottled water and are tracked…
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