Ellsworth Hydroelectric Project

On June 18, 2025, Black Bear Hydro Partners LLC submitted an application for a Water Quality Certification pursuant to Section 401 of the Clean Water Act, 33 U.S.C. §§ 1341 et. seq. for the federal relicensing and continued operation of the Ellsworth Hydroelectric Project (Project). Federal regulations require the Department to act on this application within one-year, by June 17, 2026.

Questions and comments may be sent to DEP-Hydropower@maine.gov

Project Folder


Appeal of Denial of Water Quality Certification

For more information, please contact William Hinkel 207-314-1458

April 17, 2020 - Appeal filed by Black Bear Hydro Partners, LLC with Exhibits

June 3, 2021 – Board of Environmental Protection Order on Appeal