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Lawmakers propose task force to study tire-chemical runoff and stormwater risks to Puget Sound

Puget Sound Day on the Hill (Puget Sound Partnership) · April 16, 2026
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Summary

Rep. Marilyn Strickland and others said they will convene stakeholders to address 6PPD tire-chemical contamination and stormwater runoff, proposing a task force and short-term actions while manufacturers research alternative compounds.

Lawmakers told Puget Sound advocates they plan to convene a task force to study and address contamination from tire-derived chemicals and stormwater runoff that degrade salmon habitat.

Rep. Marilyn Strickland said she is convening a task force and seeking a Senate cosponsor for legislation on 6PPD — a tire additive linked to aquatic toxicity in runoff. "We're gonna stand that up," Strickland said, urging stakeholders and industry, state transportation officials and local governments to bring ideas for both short- and long-term action.

Why it matters: Municipal stormwater, roadway runoff and tire-derived contaminants are increasingly cited in scientific studies as threats to juvenile salmon and other aquatic life. Strickland said the approach will combine federal engagement, state-level pilots and stakeholder convenings at the Center for Urban Waters in Tacoma.

Practical steps and partnerships: Strickland said some short-term measures can be pursued through state departments of transportation while manufacturers work on chemical alternatives. She invited input from local stakeholders for the planned convening.

Status: The task force and a potential bill were proposed as next steps; the meeting did not produce a final text or secured appropriation. Lawmakers encouraged participants to follow up with concrete proposals and data to support any recommended regulatory or funding actions.