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Home/Bills/A 8634New York · 2025–2026 Legislative Session
Assembly BillIntroducedPBH

A 8634: 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).

New York · Assembly · 2025–2026 Legislative Session · last verified August 12, 2026

What A 8634 does, verified August 12, 2026

The bill aims to establish maximum contaminant levels and a hazard index for certain per- and polyfluoroalkyl substances (PFAS) in drinking water. The maximum contaminant levels will be set at 4 parts per trillion for perfluorooctane sulfonic acid (PFOS) and perfluorooctanoic acid (PFOA), and 10 parts per trillion for other substances. A hazard index will be established to address cumulative exposure to multiple PFAS, including perfluorononanoic acid (PFNA), perfluorohexane sulfonate (PFHXS), and others. Public water systems will be required to comply with these requirements by May 1, 2029. The bill will take effect one year after it becomes a law.

Bill journey
1IntroducedCurrent
2In CommitteePending
3First Chamber FloorPending
4Second ChamberPending
5GovernorPending
6ChapteredPending
Last action: substituted by s3207b (2026-06-03)Alert me
Quick answers about A 8634
What is the current status of A 8634?
As of August 12, 2026, A 8634 is recorded as "Introduced": it has been introduced and is waiting for its first committee hearing or floor vote. The last recorded action, on June 3, 2026, was "substituted by s3207b".
Did A 8634 pass?
Not yet. A 8634 has been introduced and has not passed either house.
Who wrote A 8634, and where is it now?
A 8634 was authored by Asm. Grace Lee with 12 coauthors. It is filed under PBH, alongside 184 other New York PBH bills this session.
Author and sponsors
Asm. Grace LeeAuthor · New York State Assembly
Full contact details, staff, and committees with Connect, $16/moUnlock
Coauthors
MaryJane ShimskyJordan WrightWilliam MagnarelliErik DilanAri BrownMicah LasherJohn McDonaldSarahana ShresthaJohn ZaccaroLinda RosenthalKeith BrownKarines Reyes
Recent actions12 total · showing 5
Jun. 03, 2026substituted by s3207b
Jun. 03, 2026ordered to third reading rules cal.404
Jun. 03, 2026rules report cal.404
Jun. 03, 2026reported
Jun. 03, 2026reported referred to rules
Full action history, 7 earlier actionsConnect Plus
Latest bill textIntroduced version, May 22, 2025 · 328 words
  
  STATE OF NEW YORK ________________________________________________________________________ 8634 2025-2026 Regular Sessions  IN ASSEMBLY 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
Text of A 8634 as introduced, from the official record. Connect Plus keeps every version and highlights what changed.Compare versions
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A 11039Allows the alteration or repeal of real property tax exemptions for private institutions of higher education.IntroducedA 11538Extends the expansion of eligibility for World Trade Center death and disability benefits for members of New York's organized militia for an additional four years.Chaptered/SignedA 10410Relates to the availability of technical assistance grants in brownfield site remedial programs; provides that the commissioner of environmental conservation shall provide grants to the New York city community board with jurisdiction over the site or to any not-for-profit corporation exempt from taxation under section 501(c)(3) of the internal revenue code at any site which may be affected by a brownfield site remedial program.Introduced
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