l9n/ Oregon

2025 Regular Session

House Bill 3525

Requires, for each dwelling unit rented by a landlord for which the source of drinking water is an exempt well in a ground water quality management area, that the landlord collect and test samples of drinking water from the dwelling unit for arsenic, coliform bacteria, lead and nitrates.

Became law as Chapter 574, Oregon Laws 2025, signed July 24, 2025, 163 days after it was filed. In force from January 1, 2026.

What it does

The synopsis the Legislative Assembly published with the bill.

Digest: This Act requires landlords to test tenants' wells for contaminants. (Flesch Readability Score: 61.3). Requires, for each dwelling unit rented by a landlord for which the source of drinking water is an exempt well in a ground water <b>quality</b> management area, that the landlord collect and test samples of drinking water from the dwelling unit for arsenic, coliform bacteria, lead and nitrates. Requires the Oregon Health Authority to adopt implementation rules. Becomes operative on January 1, 2027.

Sponsors

Who carried the bill in each chamber, and who signed on. Each name leads to the member's page.

In the House of Representatives

6 co-sponsors

Mark Gamba, Sarah McDonald, Nancy Nathanson, Jules Walters, David Gomberg, John Lively

In the Senate

    3 co-sponsors

    James Manning Jr., Mark Meek, Khanh Pham

    Its course

    February 11 to August 13, 2025, on one scale. In the top row each mark is a day something happened; taller marks are busier days.

    Each committee stop sits inside its chamber.

    Every action25 actions on 19 days

    In the House of RepresentativesFeb 11 to Jun 20129 days

    Waiting for a committeeFeb 11 to Feb 121 day

    Agriculture, Land Use, Natural Resources, and WaterFeb 12 to Apr 1663 days

    RulesApr 16 to Jun 1863 days

    In the SenateJun 20 to Jun 266 days

    Waiting for a committeeJun 20 to Jun 244 days

    RulesJun 24 to Jun 262 days

    Back in the House of RepresentativesJun 26 to Jun 304 days

    With the GovernorJun 30 to Jul 2424 days

    Votes

    Yeas to nays, as the Legislative Assembly recorded them. Committee votes are set in.

    • House of Representatives, third reading39–8

      Passed · Jun 20 · 13 present

    • Senate, third reading23–6

      Passed · Jun 26 · 1 present

    • House of Representatives, concurrence36–14

      Agreed to the other chamber's changes · Jun 27 · 10 present

    Amendments

    Each amendment offered, and what became of it.

    • House of Representatives committee amendmentAdopted

      Adopted Jun 18

    • Senate committee amendmentAdopted

      Adopted Jun 26

    Text

    Each version as the Legislative Assembly printed it.

    l9n doesn't hold this bill's text yet.

    What happened

    In l9n's words, one line for each step. Every action as the Legislative Assembly published it is below.

    In the House of Representatives Feb 11 – Jun 20

    1. Feb 11Introduced
    2. Feb 12Sent to Agriculture, Land Use, Natural Resources, and Water
    3. Feb 17Heard in Agriculture, Land Use, Natural Resources, and Water
    4. Apr 9Heard in Agriculture, Land Use, Natural Resources, and Water
    5. Apr 16Agriculture, Land Use, Natural Resources, and Water reported it without a recommendation, and that it go to Rules
    6. Sent to Rules
    7. Apr 30Heard in Rules
    8. Jun 16Heard in Rules
    9. Jun 18Rules recommended it as amended
    10. Jun 19Read a second time
    11. Jun 20Passed the House of Representatives, 39 to 8

    In the Senate Jun 23 – Jun 26

    1. Jun 23Arrived in the Senate
    2. Jun 24Sent to Rules
    3. Heard in Rules
    4. Jun 25Heard in Rules
    5. Jun 26Rules recommended it as amended
    6. Read a second time
    7. Passed the Senate, 23 to 6

    Back in the House of Representatives Jun 27 – Jun 30

    1. Jun 27The House of Representatives agreed to the Senate's amendments and passed it again, 36 to 14
    2. Jun 30Signed in the House of Representatives

    To the Governor Jun 30 – Aug 13

    1. Jun 30Signed in the Senate
    2. Jul 24Signed by the Governor
    3. Aug 13Became chapter 574 of Oregon Laws 2025, in force from January 1, 2026
    All 25 actions, as published
    1. Feb 11First reading. Referred to Speaker's desk.House of Representatives
    2. Feb 12Referred to Agriculture, Land Use, Natural Resources, and Water.House of Representatives
    3. Feb 17Public Hearing held.House of Representatives
    4. Apr 9Work Session held.House of Representatives
    5. Apr 16Without recommendation as to passage, with amendments, be printed A-Engrossed, and be referred to Rules.House of Representatives
    6. Apr 16Referred to Rules by order of Speaker.House of Representatives
    7. Apr 30Public Hearing held.House of Representatives
    8. May 1Work Session cancelled.House of Representatives
    9. Jun 16Work Session held.House of Representatives
    10. Jun 18Recommendation: Do pass with amendments and be printed B-Engrossed.House of Representatives
    11. Jun 19Second reading.House of Representatives
    12. Jun 20Third reading. Carried by Hartman. Passed.House of Representatives
    13. Jun 23First reading. Referred to President's desk.Senate
    14. Jun 24Referred to Rules.Senate
    15. Jun 24Public Hearing held.Senate
    16. Jun 25Work Session held.Senate
    17. Jun 26Recommendation: Do pass with amendments to the B-Eng. bill. (Printed C-Eng.)Senate
    18. Jun 26(Amendments distributed.)Senate
    19. Jun 26Second reading.Senate
    20. Jun 26Rules suspended. Third reading. Carried by Neron Misslin. Passed.Senate
    21. Jun 27House concurred in Senate amendments and repassed bill.House of Representatives
    22. Jun 30Speaker signed.House of Representatives
    23. Jun 30President signed.Senate
    24. Jul 24Governor signed.House of Representatives
    25. Aug 13Chapter 574, (2025 Laws): Effective date January 1, 2026.House of Representatives