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Waterworks annual drinking-water quality report — 2025 test results
Combined primary-system and Lightfoot-system reports, including expanded water-quality test tables.
Why this record matters
Waterworks reports a PFOS maximum of 4.9 ppt in 2025: The primary-system table shows PFOS at 3.7–4.9 ppt and PFOA at 2.1–3.3 ppt. EPA sets a 4.0 ppt limit for each and evaluates quarterly monitoring using a running annual average for each entry point. The maximum is a reason to inspect the sample series and regulator’s calculation.
Source notes
Official 27-page combined report currently identifies tests from 2025, although the URL slug says 2024. Exact issue date not established. Dynamic document ID may be replaced with a later edition; the visible cover controls the reporting year. Verified against the official publisher October 8, 2026.