A8634 • 2025

Establishes maximum contaminant levels and a hazard index in drinking water for certain per- and polyfluoroalkyl substances (PFAS)

Passed Legislature

This bill passed both chambers and reached final enrollment, even if later executive action is not shown here.

Sponsor: Grace Lee
Last action: 2026-06-03
Official status: Assembly Floor Calendar
Effective date: Not listed

Plain English Breakdown

Using official source text because the generated explanation was unavailable or could not be confirmed against the official bill text.

Establishes maximum contaminant levels and a hazard index in drinking water for certain per- and polyfluoroalkyl substances (PFAS)

Establishes maximum contaminant levels and a hazard index in drinking water for certain per- and polyfluoroalkyl substances (PFAS) 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).

What This Bill Does

Establishes maximum contaminant levels and a hazard index in drinking water for certain per- and polyfluoroalkyl substances (PFAS) 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).

Limits and Unknowns

This entry is temporarily using official source text because the generated explanation could not be confirmed against the official bill text during the last sync.

Bill History

2026-06-03 Assembly
REPORTED REFERRED TO RULES
2026-06-03 Assembly
REPORTED
2026-06-03 Assembly
RULES REPORT CAL.404
2026-06-03 Assembly
ORDERED TO THIRD READING RULES CAL.404
2026-06-03 Assembly
SUBSTITUTED BY S3207B
2026-05-19 Assembly
REPORTED REFERRED TO WAYS AND MEANS
2026-05-14 Assembly
AMEND AND RECOMMIT TO HEALTH
2026-05-14 Assembly
PRINT NUMBER 8634B
2026-05-12 Assembly
AMEND AND RECOMMIT TO HEALTH
2026-05-12 Assembly
PRINT NUMBER 8634A
2026-01-07 Assembly
REFERRED TO HEALTH
2025-05-22 Assembly
REFERRED TO HEALTH

Official Summary Text

Establishes maximum contaminant levels and a hazard index in drinking water for certain per- and polyfluoroalkyl substances (PFAS)
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).

Current Bill Text

Read the full stored bill text

S T A T E   O F   N E W   Y O R K
        ________________________________________________________________________

                                          8634

                               2025-2026 Regular Sessions

                                  I N  A S S E M B L Y

                                      May 22, 2025
                                       ___________

        Introduced by M. of A. LEE -- read once and referred to the Committee on
          Health

        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 ESTABLISH A MAXIMUM CONTAMINANT  LEVEL
     4  OF:
     5    (I)  NO  HIGHER  THAN  4  PARTS PER TRILLION (PPT) FOR PERFLUOROOCTANE
     6  SULFONIC ACID (PFOS) AND PERFLUOROOCTANOIC ACID (PFOA); AND
     7    (II) NO HIGHER THAN 10 PARTS PER TRILLION (PPT) FOR  PERFLUORONONANOIC
     8  ACID  (PFNA), PERFLUOROHEXANE SULFONATE (PFHXS), AND HEXAFLUOROPROPYLENE
     9  OXIDE DIMER ACID (HFPO-DA).
    10    B. THE COMMISSIONER SHALL ESTABLISH A HAZARD INDEX TO ADDRESS  CUMULA-
    11  TIVE  EXPOSURE  TO  MULTIPLE  PER-  AND  POLYFLUOROALKYL SUBSTANCES. THE
    12  HAZARD INDEX SHALL INCLUDE BUT NOT BE LIMITED TO PERFLUORONONANOIC  ACID
    13  (PFNA),  PERFLUOROHEXANE  SULFONATE  (PFHXS),  HEXAFLUOROPROPYLENE OXIDE
    14  DIMER ACID (HFPO-DA), AND PERFLUOROBUTANE SULFONATE (PFBS).
    15    C. THE COMMISSIONER SHALL REQUIRE THAT  PUBLIC  WATER  SYSTEMS  COMPLY
    16  WITH THE REQUIREMENTS OF THE MAXIMUM CONTAMINANT LEVELS AND HAZARD INDEX
    17  REQUIRED BY THIS SUBDIVISION BY MAY FIRST, TWO THOUSAND TWENTY-NINE.
    18    §  2. This act shall take effect one year after it shall have become a
    19  law. Effective immediately, the addition, amendment and/or repeal of any
    20  rule or regulation necessary for the implementation of this act  on  its
    21  effective date are authorized to be made and completed on or before such
    22  effective date.

         EXPLANATION--Matter in ITALICS (underscored) is new; matter in brackets
                              [ ] is old law to be omitted.
                                                                   LBD06979-03-5