Michigan · 2025-2026 Regular Session · Bill

SB 504: Water supply: quality and standards; testing and reporting of the amount of microplastics in public drinking water supplies; require. Amends sec. 5 of 1976 PA 399 (MCL 325.1005) & adds sec. 6a.

In committee Last action March 11, 2026: REFERRED TO COMMITTEE OF THE WHOLE WITH SUBSTITUTE (S-1)

Plain-language summary

SB 504 is a bill introduced in the Michigan Senate on August 14, 2025. According to its official title, it concerns: Water supply: quality and standards; testing and reporting of the amount of microplastics in public drinking water supplies; require. Amends sec. 5 of 1976 PA 399 (MCL 325.1005) & adds sec. 6a. Primary sponsor: Dayna Polehanki (Democratic). It lists 7 additional sponsors. Most recent recorded action (March 11, 2026): REFERRED TO COMMITTEE OF THE WHOLE WITH SUBSTITUTE (S-1).

Sponsors

Primary sponsor: Dayna Polehanki (Democratic). 7 co-sponsors.