Washington · 2025-2026 Biennium (69th Legislature)

Concerning on-site wastewater treatment system inspections.

AN ACT Relating to on-site wastewater treatment system inspections;

SB 6291·Senate·Bill

Sen. Liz LovelettState Senate · LD-40·1 cosponsor

Fiscal noteState NoLocal No

Effective dateJune 11, 2026

Primary sponsor

Liz LovelettState Senate · LD-40

Cosponsors

Sharon ShewmakeState Senate · LD-42

Floor votes

Senate · 3rd Reading & Final Passage · SB 6291Feb 10, 202648–0

House · Final Passage as Amended by the House · SB 6291Mar 3, 202693–0

Senate · Final Passage as Amended by the House · SB 6291Mar 10, 202649–0

Legislative history

Jan 22, 2026

First reading, referred to Local Government.

Feb 2, 2026

LGV - Majority; do pass.

Feb 3, 2026

Passed to Rules Committee for second reading.

Feb 6, 2026

Placed on second reading consent calendar.

Feb 10, 2026

Rules suspended. Placed on Third Reading.

Feb 10, 2026

Third reading, passed; yeas, 48; nays, 0; absent, 0; excused, 1.

Feb 12, 2026

First reading, referred to Environment & Energy.

Feb 24, 2026

ENVI - Executive action taken by committee.

Feb 24, 2026

ENVI - Majority; do pass with amendment(s).

Feb 25, 2026

Referred to Rules 2 Review.

Mar 2, 2026

Rules Committee relieved of further consideration. Placed on second reading.

Mar 3, 2026

Committee amendment(s) adopted with no other amendments.

Mar 3, 2026

Rules suspended. Placed on Third Reading.

Mar 3, 2026

Third reading, passed; yeas, 93; nays, 0; absent, 0; excused, 5.

Mar 10, 2026

Senate concurred in House amendments.

Mar 10, 2026

Passed final passage; yeas, 49; nays, 0; absent, 0; excused, 0.

Mar 11, 2026

President signed.

Mar 11, 2026

Speaker signed.

Mar 12, 2026

Delivered to Governor.

Mar 24, 2026

Governor signed.

Mar 24, 2026

Chapter 210, 2026 Laws.

Mar 24, 2026

Effective date 6/11/2026.

Bill text

Original Bill Bill as Passed Legislature

Amendments

Committee amendment by Environment & Energy (Adopted)

Bill reports

Senate Bill Report (Orig.) — Initial Bill Report 01-29-26 Senate Bill Report — Testimony Added 01-29-26 Senate Bill Report — Reported by LGV 02-02-26 Senate Bill Report — Passed Senate 02-10-26 House Bill Analysis 2026 — Initial House Analysis 02-18-26 House Bill Report — Reported by ENVI 02-24-26 House Bill Report — Passed House 03-03-26 Senate Bill Report — Amended by House 03-03-26 Final Bill Report — Final Bill Report 2026

Session law

Chapter 210, Laws of 2026