House sets limits on PFAS in sewage sludge but delegates debate liability and stringency

Mar 23, 2026

The House approved a bill setting upper PFAS concentration limits for sewage sludge used as fertilizer, with proponents saying it creates regulatory limits and MDE monitoring and opponents arguing the limits are higher than federal guidance and lack explicit industry liability; passed 130–7.

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The House on March 11 passed legislation that sets upper concentration limits for poly‑ and per‑fluoroalkyl substances (PFAS) in sewage sludge that is applied to agricultural land. Supporters said the bill establishes regulatory standards where none currently exist and requires monitoring by the Maryland Department of the Environment; opponents criticized the bill for setting limits higher than some federal thresholds and for not creating explicit liability for industry partners that apply contaminated sludge.

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