---
type: "Bill"
title: "An Act To Expand Testing For Perfluoroalkyl And Polyfluoroalkyl Substances To Private Drinking Water Wells"
description: "An Act To Expand Testing For Perfluoroalkyl And Polyfluoroalkyl Substances To Private Drinking Water Wells"
jurisdiction: "us/states/me"
legislature: "Maine Legislature"
session: "132"
identifier: "LD 493"
citation: "Maine LD 493 (132)"
classification: ["bill"]
subjects: ["PFAS WELL TESTING", "PUBLIC SAFETY", "SAFE DRINKING WATER"]
status: "enacted"
primary_sponsors: ["Laurie OSHER"]
version_count: 5
action_count: 43
vote_count: 3
first_action: "2025-02-06"
last_action: "2026-04-16"
source: "openstates"
source_identifier: "ocd-bill/cf62a0bc-decd-4e2d-93d2-b3e10615cb8a"
source_url: "https://legislature.maine.gov/LawMakerWeb/dockets.asp?ID=280096384"
source_hash: "7a3da335d831ca0681df66053c11927c13082f4389eec49f223d645b614963b1"
vintage: "2026-07-01"
source_snapshot: "https://data.openstates.org/daily/2026-07-01/public.pgdump"
retrieved_at: "2026-07-06"
confidence: "reported"
tags: ["legislation", "bill", "us-me"]
---

# Maine LD 493 (132) — An Act To Expand Testing For Perfluoroalkyl And Polyfluoroalkyl Substances To Private Drinking Water Wells

## Version chain

The bill's text revisions, in order — the diff chain from filing to enrollment.

1. **Amendment C-A (H-300)** (committee substitute) — [source](http://www.mainelegislature.org/legis/bills/getPDF.asp?paper=HP0322&item=2&snum=132)
2. **Amendment H-A to C-A (H-1052)** (committee substitute) — [source](http://www.mainelegislature.org/legis/bills/getPDF.asp?paper=HP0322&item=6&snum=132)
3. **Amendment S-A to C-A (S-669)** (committee substitute) — [source](http://www.mainelegislature.org/legis/bills/getPDF.asp?paper=HP0322&item=4&snum=132)
4. **Chapter 746** (committee substitute) — [source](http://www.mainelegislature.org/legis/bills/getPDF.asp?paper=HP0322&item=7&snum=132)
5. **LD 493 HP 322** (committee substitute) — [source](http://www.mainelegislature.org/legis/bills/getPDF.asp?paper=HP0322&item=1&snum=132)

## Votes

- ENACTMENT — **21–13** (pass) · upper
- ACC MAJ OTP AS AMENDED REP — **78–69** (pass) · lower
- ACCEPT MAJORITY OUGHT TO PASS AS AMENDED REPORT — **21–14** (pass) · upper

## Sponsors

- Laurie OSHER — primary (person)
- Ambureen RANA — cosponsor (person)
- Denise TEPLER — cosponsor (person)
- Deqa DHALAC — cosponsor (person)
- Henry INGWERSEN — cosponsor (person)
- Lori GRAMLICH — cosponsor (person)
- Richard BENNETT — cosponsor (person)
- Samuel ZAGER — cosponsor (person)
- Victoria DOUDERA — cosponsor (person)

## Timeline

The legislative action history — every referral, reading, and vote.

- **2025-02-06** Received by the Clerk of the House on February 6, 2025. `receipt`
- **2025-02-06** The Bill was REFERRED to the Committee on HEALTH AND HUMAN SERVICES pursuant to Joint Rule 308.2 and ordered printed pursuant to Joint Rule 401. `referral-committee`
- **2025-03-21** Carried over, in the same posture, to the next special or regular session of the 132nd Legislature, pursuant to Joint Order SP 519.
- **2025-05-28** Reports READ.
- **2025-05-28** On motion of Representative MEYER of Eliot, the Majority Ought to Pass as Amended Report was ACCEPTED.
- **2025-05-28** ROLL CALL NO. 216
- **2025-05-28** (Yeas 78 - Nays 69 - Absent 4 - Excused 0)
- **2025-05-28** The Bill was READ ONCE. `reading-1`
- **2025-05-28** Committee Amendment "A" (H-300) was READ and ADOPTED. `committee-passage-favorable, passage`
- **2025-05-28** Under suspension of the rules, the Bill was given its SECOND READING without REFERENCE to the Committee on Bills in the Second Reading.
- **2025-05-28** The Bill was PASSED TO BE ENGROSSED as Amended by Committee Amendment "A" (H-300). `reading-3`
- **2025-05-28** Sent for concurrence. ORDERED SENT FORTHWITH.
- **2025-05-29** Reports Read
- **2025-05-29** On motion by Senator INGWERSEN of York the Majority Ought to Pass as Amended Report ACCEPTED. PREVAILED
- **2025-05-29** Roll Call Ordered Roll Call Number 256 Yeas 21 - Nays 14 - Excused 0 - Absent 0
- **2025-05-29** Bill READ ONCE. `reading-1`
- **2025-05-29** Committee Amendment "A" (H-300) READ and ADOPTED. `committee-passage-favorable, passage`
- **2025-05-29** Under suspension of the Rules, READ A SECOND TIME and PASSED TO BE ENGROSSED AS AMENDED by Committee Amendment "A" (H-300) in concurrence. `reading-2, reading-3`
- **2025-06-02** PASSED TO BE ENACTED. `passage`
- **2025-06-02** Sent for concurrence. ORDERED SENT FORTHWITH.
- **2025-06-02** On motion by Senator ROTUNDO of Androscoggin PLACED ON THE SPECIAL APPROPRIATIONS TABLE pending ENACTMENT in concurrence.
- **2025-06-25** CARRIED OVER, in the same posture, to any special or regular session of the 132nd Legislature, pursuant to Joint Order SP 800.
- **2026-04-13** On motion by Senator ROTUNDO of Androscoggin taken from the Special Appropriations Table.
- **2026-04-13** Same Senator moved to SUSPEND THE RULES to RECONSIDER whereby the Bill was PASSED TO BE ENGROSSED AS AMENDED by Committee Amendment "A" (H-300) in concurrence. `reading-3`
- **2026-04-13** On motion by Senator STEWART of Aroostook OBJECTED.
- **2026-04-13** On motion by Senator ROTUNDO of Androscoggin Bill and accompanying papers COMMITTED to the Committee on Appropriations and Financial Affairs In NON-CONCURRENCE. `referral-committee`
- **2026-04-13** Sent down for concurrence.
- **2026-04-13** On motion of Speaker FECTEAU of Biddeford, the House RECEDED.
- **2026-04-13** On motion of Representative GATTINE of Westbrook, House Amendment "A" (H-1052) to Committee Amendment "A" (H-300) was READ and ADOPTED. `committee-passage-favorable, passage`
- **2026-04-13** Committee Amendment "A" (H-300) as Amended by House Amendment "A" (H-1052) thereto was ADOPTED. `committee-passage-favorable`
- **2026-04-13** The Bill was PASSED TO BE ENGROSSED as Amended by Committee Amendment "A" (H-300) as Amended by House Amendment "A" (H-1052) thereto. `reading-3`
- **2026-04-13** In NON-CONCURRENCE and sent for concurrence.
- **2026-04-13** ORDERED SENT FORTHWITH.
- **2026-04-13** On motion by Senator PIERCE of Cumberland the Senate RECEDED and CONCURRED to PASSAGE TO BE ENGROSSED AS AMENDED by Committee Amendment "A" (H-300) as Amended by House Amendment "A" (H-1052) thereto. `reading-3`
- **2026-04-13** Ordered sent down forthwith.
- **2026-04-14** PASSED TO BE ENACTED. `passage`
- **2026-04-14** Sent for concurrence. ORDERED SENT FORTHWITH.
- **2026-04-14** PASSED TO BE ENACTED, in concurrence PREVAILED `passage`
- **2026-04-14** Roll Call Ordered Roll Call Number 956 Yeas 21 - Nays 13 - Excused 1 - Absent 0
- **2026-04-16** Signed by Governor `executive-signature`
- **2025-05-08T04:00:00+00:00** Work Session Held
- **2025-05-08T04:00:00+00:00** Voted - Divided Report
- **2025-05-27T04:00:00+00:00** Reported Out - OTP-AM/ONTP

## Source

OpenStates / OpenCivicData bulk snapshot [2026-07-01](https://data.openstates.org/daily/2026-07-01/public.pgdump); origin `ocd-bill/cf62a0bc-decd-4e2d-93d2-b3e10615cb8a`. Confidence: reported (aggregated from official Maine legislature records).