One or more PFAS compounds exceed EPA Maximum Contaminant Levels. This is not a current violation — the federal compliance deadline is April 2029 (a proposed extension to 2031 is not final). These are UCMR 5 results from 2023 to 2025; the system may have installed treatment since.
Key contaminants vs MCL
PFOA5.3 ppt(MCL: 4 ppt)
EPA MCL: 4 ppt (parts per trillion) for PFOA and PFOS individually. Compliance deadline: April 26, 2029 under the current rule.
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As printed in the state's own documents. Amounts are not added together: each is a different kind of figure.
Oct 30, 2025 · This project consists of installation of a new Granular Activated Carbon (GAC) adsorption treatment system for the removal of PFOA from Well No. 1 of the Manhasset-Lakeville Water District’s Campbell Station. The project includes the construction of a set of two 40,000 lb GAC vessels as well as a new masonry building to house the GAC treatment system; new site piping and drainage modifications to accommodate the GAC treatment system; new wiring for the GAC treatment building power and controls; and replacement of the well pump as needed upon evaluation. The project scope is further defined by the engineering report entitled ″Engineering Report – PFAS Treatment for Campbell Well No. 1″ dated August 2023, by H2M Architects + Engineers, as may be updated, amended, supplemented, and approved by the New York State Department of Health. · $2.83M
Approved by EFC Board of Directors (Resolution 3094, 2025-10-30). Source →
Oct 2025 · Removal of PFAS contamination at Spruce Ponds Plant., Upgrade Water Treatment Plant · $3.6M
On the FFY2026 Annual List below the Expanded Subsidized Interest Rate Funding Line (market-rate only) (amount is the project cost). Source →
Oct 2025 · Installation of GAC Treatment for PFAS at Manhasset Lakeville WD Campbell Well No. 1, Upgrade Water Treatment Plant · $4.72M
On the FFY2026 Multi-Year List (listing form submitted) (amount is the project cost). Source →