Establishes maximum contaminant levels in drinking water for certain per- and polyfluoroalkyl substances (PFAS); sets such levels at no higher than 4 parts per trillion (ppt) for perfluorooctane sulfonic acid (PFOS) and perfluorooctanoic acid (PFOA) and no higher than 10 parts per trillion (ppt) for perfluorononanoic acid (PFNA), perfluorohexane sulfonate (PFHxS), and hexafluoropropylene oxide dimer acid (HFPO-DA).
STATE OF NEW YORK
________________________________________________________________________
8634--B
2025-2026 Regular Sessions
IN ASSEMBLY
May 22, 2025
___________
Introduced by M. of A. LEE, LASHER, McDONALD, SHRESTHA, ROSENTHAL,
REYES, COLTON, GALLAGHER, BENDETT, LEVENBERG, RAJKUMAR, SCHIAVONI,
BORES, SEAWRIGHT, BRONSON, MORENO, SHIMSKY, WRIGHT, MAGNARELLI, DILAN,
K. BROWN -- read once and referred to the Committee on Health --
recommitted to the Committee on Health in accordance with Assembly
Rule 3, sec. 2 -- committee discharged, bill amended, ordered
reprinted as amended and recommitted to said committee -- again
reported from said committee with amendments, ordered reprinted as
amended and recommitted to said committee
AN ACT to amend the public health law, in relation to establishing maxi-
mum contaminant levels and a hazard index in drinking water for
certain per- and polyfluoroalkyl substances (PFAS)
The People of the State of New York, represented in Senate and Assem-bly, do enact as follows:
1 Section 1. Section 1112 of the public health law is amended by adding
2 a new subdivision 12-a to read as follows:
3 12-a. a. The commissioner shall:
4 (i) modify the existing maximum contaminant level for perfluorooctane
5 sulfonic acid (PFOS) and perfluorooctanoic acid (PFOA) to be no higher
6 than 4 parts per trillion; and
7 (ii) establish a maximum contaminant level no higher than 10 parts per
8 trillion (ppt) for perfluorononanoic acid (PFNA), perfluorohexane sulfo-
9 nate (PFHxS), and hexafluoropropylene oxide dimer acid (HFPO-DA, also
10 known as GenX).
11 b. The commissioner shall determine and report to the governor and the
12 legislature by May first, two thousand twenty-eight, what additional
13 requirements, if any, are warranted to address cumulative exposure to
14 multiple per- and polyfluoroalkyl substances, including but not limited
15 to, the substances listed in paragraph a of this subdivision.
EXPLANATION--Matter in italics (underscored) is new; matter in brackets
[] is old law to be omitted.
LBD06979-06-6
A. 8634--B 2
1 c. The commissioner shall require that public water systems comply
2 with the requirements of the maximum contaminant levels required by this
3 subdivision by May first, two thousand twenty-nine.
4 § 2. This act shall take effect one year after it shall have become a
5 law. Effective immediately, the addition, amendment and/or repeal of any
6 rule or regulation necessary for the implementation of this act on its
7 effective date are authorized to be made and completed on or before such
8 effective date.
