Committee approves Groundwater Quality Rule docket with exceptions amid PFAS uncertainty

Feb 23, 2026

DEQ presented updates to Idaho’s Groundwater Quality Rule; the committee approved docket 58‑0111‑2501 while rejecting two sections that incorporate unresolved federal standards — citing recent federal litigation over PFAS and the desire for Idaho-specific data and additional stakeholder engagement.

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Jerry Henry, division administrator for Drinking Water Protection and Finance at the Department of Environmental Quality, told the committee the rulemaking updates streamline Idaho’s groundwater standards, remove an internal standards table and adopt many drinking-water standards by reference.

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