All PFAS compounds below EPA Maximum Contaminant Levels.
Key contaminants vs MCL
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 22, 2026 · This project consists of the construction of a new Granular Activated Carbon (GAC) treatment system at the Hampton Bays Water District’s Plant No. 3. The GAC system will consist of four 12-foot diameter, 40,000-lb adsorption vessels as well as associated process piping, valves, and appurtenances to allow the vessels to be operated either in parallel or in series. The project also includes construction of an approximately 3,400 square foot treatment building to house the GAC system; an approximately 7,000 cubic foot leaching galley structure to contain process backwash from the GAC system; and upgrades to Well Nos. 3-1, 3-2, and 3-3. The project scope is further defined by the engineering report entitled, ″Engineering Report: Wellhead Treatment for the Removal of PFAS at Plant No. 3″, dated May 2026, by H2M architects + engineers, as may be updated, amended, supplemented, and approved by the New York State Department of Health. · $4.71M
Approved by EFC Board of Directors (Resolution 3144, 2026-10-22). Source →
Nov 1, 2024 · Wellhead Treatment for the Removal of PFAS at Plant No. 3 · $4.71M
2024 WIIA grant awarded (Governor's announcement). Source →