California 20252026 Regular Session Status: In Committee 1 D cosponsors

SB 1258 — Hazardous waste: site remediation: residential suitability guidelines.

Last action — May 14 hearing: Held in committee and under submission.

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  1. ✓
    Introduced
  2. 2
    In Committee
  3. 3
    Passed Senate
  4. 4
    Passed Assembly
  5. 5
    To Executive
  6. 6
    Enacted

This bill is in committee in the Senate. Introduced February 19, 2026. It must pass committee before a floor vote.

Next likely step: a committee vote, then a floor vote in the Senate.

Prognosis

Advancing 36% · moderate confidence

Where this bill stands today.

Odds of enactment

Low

How often bills like it became law.

  • In Committee

    Current position in the legislative process.

  • 1 sponsor

    1 primary, 0 co-sponsors signed on.

  • Single-party support

    Sponsorship is currently within one party (1 D).

  • Cleared a recorded vote

    Passed 2 recorded votes so far.

Prognosis reads this bill's own signals — stage, sponsorship breadth, committee status, recorded votes and cross-state momentum. Odds come from a model trained on which bills have become law.

In plain language

The bill requires guidelines for assessing hazardous waste sites for residential suitability.

SB 1258 mandates the development of guidelines by the State Water Resources Control Board to determine if hazardous waste sites can be suitable for residential use. It also sets thresholds for contamination levels that affect residential suitability.

What this means for you
  • Developers: This bill means you will need to follow new guidelines for evaluating hazardous waste sites for residential projects.
  • Environment: This legislation aims to ensure better safety standards for residential developments on previously hazardous sites.

Summary

Existing law authorizes, when a release of waste occurs and remedial action is required, a responsible party, as defined, to request a local officer to supervise the remedial action if the site is not already overseen by the Department of Toxic Substances Control or a regional water quality control board. Existing law authorizes the department or a regional water quality control board to retain or assume oversight authority from a local officer, as specified. This bill would require the State Water Resources Control Board, working jointly with the department and in consultation with the Office of Land Use and Climate Innovation, to develop guidelines for developers and for agencies overseeing development-specific site remediations and making determinations of site suitability, as provided. The bill would require the board, in conjunction with the department, to develop thresholds of significance for contaminants from different sources and for different future uses, as provided. The bill would specify that sites with contamination above those thresholds shall be deemed not suitable for residential use.

Bill Text

Action History

  1. May 14 hearing: Held in committee and under submission.

  2. Set for hearing May 14.

  3. May 4 hearing: Placed on APPR. suspense file.

  4. Set for hearing May 4.

  5. Re-referred to Com. on APPR.

  6. Withdrawn from committee.

  7. Read second time and amended. Re-referred to Com. on HOUSING.

  8. From committee: Do pass as amended and re-refer to Com. on HOUSING. (Ayes 6. Noes 0. Page 3900.) (April 15).

  9. Set for hearing April 15.

  10. Re-referred to Coms. on E.Q. and HOUSING.

  11. Re-referred to Com. on RLS.

  12. Withdrawn from committee.

  13. From committee with author's amendments. Read second time and amended. Re-referred to Com. on HOUSING.

  14. Referred to Coms. on HOUSING and L. GOV.

  15. From printer. May be acted upon on or after March 22.

  16. Introduced. Read first time. To Com. on RLS. for assignment. To print.

Sponsors

Sponsorship breakdown

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1 sponsors · 0 co-sponsors · 121 not signed on

Sponsors (1)

Co-sponsors (0)

None.

Not signed on (121)

121 members have not signed on to this bill.

Show all 121 →

"Not signed on" means a member has not sponsored or co-sponsored this bill — it does not imply opposition. Members flagged Voted No have a recorded No vote on this bill.

Whip count is in markup. Polling the chamber and every recorded vote this session. Only the first open is slow. It’s instant for you after this. Calling the roll · Tallying · Engrossing

Votes

Do pass as amended, but first amend, and re-refer to the Committee on [Housing]

Passed 6 Yea · 0 Nay · 1 Other
Party YeaNayPresentNot Voting
Republican 2000
Democratic 4001
Total 6001
% of votes cast 86%0%0%14%
How each member voted (7)
Member Party Vote
Allen, Benjamin Democratic Yea
Blakespear, Catherine S. Democratic Yea
Gonzalez, Lena A. Democratic Yea
Hurtado, Melissa Democratic Not Voting
Menjivar, Caroline Democratic Yea
Dahle, Megan Republican Yea
Valladares, Suzette Martinez Republican Yea

Official roll call →

Subjects

housing environment
Cross-referencing the record. Reading this bill against every other bill in the corpus by meaning, not keywords. Only the first open is slow. It’s instant for you after this. Matching · Ranking · Engrossing

Frequently asked questions

What does SB 1258 do?
Existing law authorizes, when a release of waste occurs and remedial action is required, a responsible party, as defined, to request a local officer to supervise the remedial action if the site is not already overseen by the Department of Toxic Substances Control or a regional water quality control board. Existing law authorizes the department or a regional water quality control board to retain or assume oversight authority from a local officer, as specified. This bill would require the State Water Resources Control Board, working jointly with the department and in consultation with the Office of Land Use and Climate Innovation, to develop guidelines for developers and for agencies overseeing development-specific site remediations and making determinations of site suitability, as provided. The bill would require the board, in conjunction with the department, to develop thresholds of significance for contaminants from different sources and for different future uses, as provided. The bill would specify that sites with contamination above those thresholds shall be deemed not suitable for residential use.
Who sponsors SB 1258?
SB 1258 is sponsored by Wiener, Scott D. (Democratic).
What is the current status of SB 1258?
This bill is in committee in the Senate. Introduced February 19, 2026. It must pass committee before a floor vote.
Where can I track SB 1258?
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