LIHI Certificate #38 - Rumford Falls Project, Maine

Rumford Falls Project, LIHI #38
Nombre del proyecto Rumford Falls
Certificado LIHI No. 38
Plazo del certificado LIHI December 10, 2018 – December 9, 2028
Dueño Rumford Falls Hydro, LLC, a subsidiary of Brookfield Renewable Energy Group
Estado Maine
Ubicación Located between river mile 90.7 and 90.9 on the Androscoggin River in the town of Rumford, in Oxford County, Maine.
Capacidad instalada Total: 44.5 MW
Upper Station: 29.3 MW
Lower Station: 15.2 MW
Generación media anual Total: 291,537 MWh
Upper Station: 182,562 MWh
Lower Station: 108,975 MWh
Tipo de instalación De pasada
Comisión Federal de Comercio No. P-2333 issued in 1994, expired 09/30/2024 – extended for relicensing

The Rumford Falls Project is located on the Androscoggin River in the town of Rumford, in Oxford County, Maine. The project was initially constructed between 1918 and 1955 to harness the power of Rumford Falls to produce paper products.

There are numerous other hydroelectric projects upstream and downstream on the Androscoggin River in New Hampshire and Maine, many of which are LIHI Certified including the Proyecto del río Androscoggin (LIHI #48) located about 32 miles downstream.

El proyecto incluye dos desarrollos:

  • Upper Station: The concrete gravedad presa is 464 feet long by 37 feet high with an ojiva type aliviadero section topped with 2.5-foot-high, pin-supported, wooden tableros de flash. The forebay is about 2,300 feet long by 150 feet wide. The gatehouse has eight compuertas de entrada, (two headgates for each of the four tuberías forzadas), trashracks, and other equipment. The four underground steel-plate penstocks are each about 110 feet long, three of which are 12 feet in diameter, and one 13 feet in diameter. The masonry central eléctrica is integral to the dam, occupying two adjoining sections of the dam: The Old Station is equipped with one horizontal generating unit and the New Station is equipped with three vertical generating units. Total installed capacity is 29.3 MW. The dam impounds a 419-acre reservoir and creates a bypass reach approximately 600 feet long.
  • Lower Station: The rock-filled, wooden-cribbed, and concrete-capped Middle Presa is 328.6 feet long by 20 feet high with a gravity spillway section topped with 1.0-foot-high pin-supported wooden flashboards. The dam creates a 21-acre reservoir and a bypass reach approximately 3,500 feet long. The Middle Canal concrete headgate structure, located adjacent to the dam, is about 120 feet long, with 10 steel headgates. A waste weir section perpendicular to the headgate structure is about 120 feet long, topped with 10-inch-high flashboards. The Middle Canal is roughly 2,400 feet long, with width ranging from 75 to 175 feet, and depth from 8 to 11 feet. The gatehouse contains two headgates, trashracks, and other equipment. Two 12-foot-diameter, steel-plate compuerta each extend about 815 feet to two cylindrical surge tanks, each about 36 feet in diameter by 50.5 feet high. The penstocks continue 77 feet to the powerhouse. The masonry powerhouse is equipped with two identical vertical units with a combined capacity of 15.2 MW.

El proyecto opera en un de pasada mode for the protection of water quality and aquatic habitat. Water levels in the upper and middle impoundments are maintained within 1.0 foot of full pond elevation. The project provides a minimum flow of 1,034 cfs below the lower dam. This flow regime was developed with consultation from the Maine Department of Inland Fisheries and Wildlife and US Fish and Wildlife Service.

Waters within the project reach are designated as Class C and impaired for PCB y dioxinas caused by legacy pollutants, and mercury from atmospheric deposition. Maine Department of Environmental Protection concluded that the project is not negatively impacting the water quality of the river. The Androscoggin River has historically been severely degraded by industrial wastewater discharges and was the impetus for the initial drafting of the Clean Water Act of 1972 by Senator Edmund Muskie.

Historically, Rumford Falls was the natural extent of migratory fish runs in the Androscoggin River. The natural falls at the site precluded access further upstream for Atlantic salmon and other species. Migratory species have been extirpado from the river due to the construction of numerous dams built along the river. Restoration of migratory species is in progress in lower sections of the river with installation of paso de peces facilities, including at Worumbo (LIHI #10). Resident fish species include warm water species: chain pickerel, golden shiner, fallfish, white sucker, pumpkinseed, and yellow perch.

The project lands are limited due to the urban environment directly surrounding the project. Some farmland and cleared land exist surrounding the reservoir and short stretches of woodlands line the reservoir. No lands of significant ecological value are under project ownership.

Threatened or endangered species potentially present in the project vicinity include the Northern long-eared bat. The project owner does not engage in any tree clearing or corridor maintenance activities on project lands, thus limiting any potential for impact on roosting sites for the species.

The Upper Station development houses eight prehistoric archaeological sites which are monitored under provisions contained in the project’s cultural resources management plan. Any land disturbing work must be cleared with the State Historic Preservation Office before commencement.

Recreational resources at the project include fishing and boating access. Boat launches are located on the north shore and a canoe portage allows car-top boating access. Public access is provided free of charge where safe.

Estado de cumplimiento

En el Certificado actual no existen condiciones específicas para ninguna instalación.

2024: No material changes or compliance issues were identified. The project remains in compliance based on the annual review.  FERC issued its final Environmental Assessment on August 13, 2024 and MDEP issued its Water Quality Certificate on August 16, 2024.

2023: No material changes or compliance issues were identified. The project remains in compliance based on the annual review.  FERC issued its relicensing Ready for Environmental Analysis and notice of Environmental Assessment to be prepared.  The project reported completion of an 8-MW battery storage installation.

2022: No material changes or compliance issues were identified. The project remains in compliance based on the annual review.  The project filed its final application for FERC relicensing on 09/29/2022.

2021: No se informaron cambios ni problemas de cumplimiento. El proyecto sigue cumpliendo con los requisitos según la revisión anual.

2020: No se informaron cambios ni problemas de cumplimiento. El proyecto sigue cumpliendo con los requisitos según la revisión anual.

2019: There were no reported changes or compliance issues. The project remains in compliance based on the annual review. The project began FERC relicensing with filing of the PAD on 09/27/2019.

2018: La presentación de informes anuales para el Certificado actual aún no ha entrado en vigor.

Historial de certificaciones

1 de enero de 2022: El plazo del Certificado LIHI se ha extendido de acuerdo con la Revisión 2.05 del Manual de Certificación LIHI 2.ª Edición emitido el 1 de enero de 2022. Consulte la tabla de instalaciones anterior para conocer el nuevo plazo.

June 24, 2019: The decision to recertify the Rumford Falls Hydroelectric Project is final. No appeals were received during the appeal period which closed on June 20, 2019. The new certification term for the Project is from December 10, 2018 through December 9, 2023.

May 21, 2019: The Low Impact Hydropower Institute (LIHI) preliminarily approved Low Impact Certification for the Rumford Falls Hydroelectric Project. This decision is preliminary pending the 30-day appeal window. Only those who commented on the initial application during the 60-day comment period are eligible to file an appeal. Such appeal needs to include an explanation as to how the Project does not meet the LIHI criteria. Appeal requests can be submitted by email to comentarios@lowimpacthydro.org with “Rumford Falls Hydroelectric Project” in the subject line, or by mail addressed to the Low Impact Hydropower Institute, 329 Massachusetts Ave, Suite 6, Lexington, MA 02420. All requests will be posted to the website.  The applicant will have an opportunity to respond and any response will also be posted. Requests must be received by 5 pm Eastern time on June 20, 2019.  The full application and reviewers report are available below. If no appeal requests are received and the decision becomes final, the Certification term for the Project  will be December 10, 2018 through December 9, 2023.

March 13, 2019: The Low Impact Hydropower Institute has received a complete application for Low Impact Recertification of the Rumford Falls Hydroelectric Project.  LIHI is seeking public comment on this application.  Specifically, we are interested in knowing whether you think the Project meets the LIHI Low Impact Certification Criteria, as revised in the 2nd Edition Handbook.  Please review the program and criteria in LIHI’s revised Manual y luego revise los materiales de solicitud del Proyecto a continuación. Los comentarios que estén directamente relacionados con criterios específicos de LIHI (flujos, calidad del agua, paso de peces, etc.) serán de gran ayuda, pero se considerarán todos los comentarios. Los comentarios pueden enviarse al Instituto por correo electrónico a comentarios@lowimpacthydro.org with “Rumford Falls Project Comments” in the subject line, or by mail addressed to the Low Impact Hydropower Institute, 329 Massachusetts Avenue, Suite 6, Lexington, MA 02420.  Comments must be received on or before 5 pm Eastern time on May 12, 2019 Se considerarán todos los comentarios. Se publicarán en el sitio web y el solicitante tendrá la oportunidad de responder. También se publicarán todas las respuestas.

November 18, 2014:  Executive Director Michael J. Sale, using authority delegated from the LIHI Governing Board, has determined that the Rumford Falls Hydroelectric Project (FERC No. 2333) continues to meet the LIHI Certification Criteria.  The effective date of the certificate is December 10, 2013, and the certificate will expire on December 10, 2018.

18 de noviembre de 2013: Brookfield Renewable Energy Group has submitted an application for a second term of certification of the Rumford Falls Hydroelectric Project. The application was received on October 30, 2013, but due to administrative backlog, the project was granted a two month extension beyond the current expiration date of December 10, 2013 to allow time for the complete review of the application.

May 6, 2009: The Rumford Falls Hydroelectric Project has been certified as low impact for a five year term, effective December 10, 2008 and expiring December 10, 2013.

Archivos de certificación

2019 Recertification:

Recertificación 2013

Certificación 2009

Documentos clave