The City of Seattle is seeking proposals for Lower Duwamish Waterway (LDW) Polychlorinated Biphenyls (PCB) Sampling. Proposals are due no later than 4:00 pm on Wednesday, August 26, 2026. All questions are to be submitted through the e-procurement portal at https://procurement.opengov.com/portal/seattle no later than 4:00 pm on Wednesday, August 19, 2026.

The City maintains a strong and long-standing commitment to contracting equity, including supporting local and small businesses and expanding opportunities for Women‑ and Minority‑Owned Business Enterprises (WMBE). Through its equity‑driven procurement practices, the City aims to ensure that WMBE firms have equitable access to contracting opportunities.