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NEW: The Sediment Pre-Design Investigation Report and the River Flow Velocity Monitoring Investigation Report are now here.

UPDATE: Check out the Remediation Trust Cleanup Progress Update fact sheet here.


A collaborative, actionable plan for cleanup of mercury in the Penobscot River Estuary.


Thanks to all who submitted Beneficial Environmental Project (BEP) proposals for funding by the January 2024 deadline.


Check for updates and learn about the BEP proposal selection process here.

In 2022, the U.S. District Court for the District of Maine approved a Consent Decree that requires Mallinckrodt US LLC (Mallinckrodt) to pay a minimum of $187 million (and possibly an additional $80 million) to remediate mercury contamination in the Penobscot River Estuary.


A total of $20 million must be provided for beneficial environmental projects intended to benefit the public and environment, under the Consent Decree.

Two trusts were created to accelerate recovery of Maine’s largest river and provide meaningful and lasting benefit for the surrounding communities and environment.

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