LIHI Certificate #108 - Gilman Project, New Hampshire

Gilman Project, LIHI #108
项目名称 Gilman
LIHI 证书编号 108
LIHI 证书期限
 December 4, 2017 – December 3, 2027
所有者 Ampersand Gilman Hydro LP
状态 Vermont, New Hampshire
地点 Located in the Village of Gilman, VT in the Town of Lunenburg, Essex County, Vermont, and in the Town of Dalton, Coos County, New Hampshire, at river mile 300 on the Connecticut River.
装机容量 4.85 MW
平均年发电量 25,000 MWh
设施类型 径流式
联邦能源管理委员会 不。 P-2392 issued in 1994, expires 03/31/2024

The Gilman Project is located in the Village of Gilman, VT in the Town of Lunenburg, Essex County, Vermont, and in the Town of Dalton, Coos County, New Hampshire, on the Connecticut River. The boundary between Vermont and New Hampshire passes through the project such that two generating units are located in New Hampshire, while the other two generating units are located in Vermont. In 1995 and 1996 the Simpson Paper Company, who owned and operated the site to produce paper until 1999, spent millions to refurbish the 坝 by replacing the existing 木制婴儿床 dam structure with a concrete gravity structure and adding 橡皮障 crest controls to the new and existing 泄洪道. There are ten hydroelectric projects on the Connecticut River. The project is the ninth most upstream dam located between the Fifteen Miles Falls Project (LIHI #39) 和 Canaan Project (LIHI #160).

The project consists of a refurbished concrete dam, 26.5 feet tall and 324.5 feet long spanning the width of the Connecticut River. The dam includes an overflow 泄洪道 section containing a hydraulically operated 顶门 and repaired existing concrete dam sections have rubber dam crest controls. The rubber dam body on the new dam section is 6.5 feet high and 109.5 feet long. The rubber dam body on the existing dam section is 5.0 feet high and 108.0 feet long.

A power 运河 leads to an intake structure, and the 发电站 containing three 弗朗西斯式水轮机 generating units and one Kaplan unit with a combined capacity of 4.85 MW.

The powerhouse is located at the northern Vermont end of the dam on the right bank of the Connecticut River and was originally constructed as a ground wood mill. The powerhouse has a substructure of mass concrete with integral water intake draft tubes. The superstructure is of brick construction with steel-frame and timber-frame construction. Project controls and mechanical equipment are located inside the powerhouse.

该项目采用 径流 mode and impounds a 130-acre reservoir. A minimum flow of 210 cfs is provided from June 1 to October 15 whenever instantaneous inflow to the project is 1,000 cfs or less. This flow regime was developed based on United States Geologic Survey records with consultation from New Hampshire Department of Environmental Services (NHDES) and Vermont Agency of Natural Resources (VANR). The flow regime mitigates low dissolved oxygen levels in the downstream reach and helps maintain adequate fish habitat in the Connecticut River.

Waters within the project reach are designated as water-quality limited due to the potential for low dissolved oxygen levels. Water quality monitoring confirmed that the project meets water quality standards.

Downstream dams create a barrier to upstream 鱼道. The two dams closest downstream of the project do not have upstream passage requirements and resource agencies have not prescribed passage. In 2007, the project owner began consultation with United States Fish and Wildlife Service (USFWS) and Vermont Department of Fish and Wildlife (VDFW) to implement downstream fish passage facilities at their request. Consultation on design occurred from 2009-2011 and the passage facility consisting of a passage slot leading to a 瀑布水潭 was implemented in 2012 to assist the Atlantic salmon restoration efforts on the Connecticut River. The restoration efforts were discontinued in 2016 and the downstream passage, though no longer required, is still operated for resident species.

The project lands consist of roughly 1.1 acres. No lands of significant ecological value exist in the project property due to its limited ownership of the shoreline. The north shoreline consists of a paper mill complex and the town of Gilman and the south shoreline is primarily wooded deciduous forest.

Threatened or endangered species potentially present in the project vicinity include the Dwarf wedgemussel, Canada lynx, tricolored bat, Northern long-eared bat, mountain avens, Robbins Cinquefoil, and Boott’s rattlesnake-root. The project owner, in consultation with USFWS, VDFW, and NH Fish and Game Department conducted studies in 2013 to develop a formal drawdown management plan to minimize the project’s effects on the Dwarf wedgemussel. The agencies confirmed that the project is not impacting these listed species.

There are no cultural or historic resources present on facility lands.

Recreational resources at the project include a canoe portage and boat launch. Public access is provided free of charge.

合规状态

该证书包括以下针对设施的特定条件：

2020 年条件满足。 条件 1： By December 31, 2018, the Owner shall provide LIHI with evidence of compliance with the water quality monitoring and with the other recommendations issued by NHDES in its letter dated April 13, 2018. When available, the Owner shall provide evidence of concurrence from NHDES that the Facility does not negatively impact water quality.

Condition partially satisfied in 2021, only annual reporting is now required. 条件2： By July 31, 2018, the Owner shall submit the final Drawdown Management Plan to USFWS and LIHI.  When available, the Owner shall provide evidence of concurrence by the agencies on the plan.  In the annual compliance statements to LIHI, the Owner shall provide a summary of activities related to dwarf wedgemussel during the prior year including any takings, agency communication and consultation, issuance of an agency Biological Opinion, and/or changes in operations or facilities that may affect the species.

2024: No material changes or compliance issues were identified. The project remains in compliance based on the annual review.  For condition 2, the project reported no activities related to dwarf wedgemussels.

2023: No material changes or compliance issues were identified. The project remains in compliance based on the annual review.  For condition 2, the project reported no activities related to dwarf wedgemussels.

2022: No material changes or compliance issues were identified. The project remains in compliance based on the annual review.  For condition 2, the project provided an update of activities related to dwarf wedgemussels.  The project filed its final relicensing application with FERC on March 28, 2022.

2021: There were no reported changes or compliance issues. The project remains in compliance based on the annual review. For Condition 2, the project provided agency concurrence on the drawdown plan, thus partially satisfying the condition.

2020: There were no reported changes or compliance issues. The project remains in compliance based on the annual review.  For Condition 1, the project confirmed NHDES concurrence on monitoring results, thus satisfying the condition. For Condition 2, the project reported completion of a water level/flows study conducted for relicensing related to drawdowns.

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 05/30/2019. For Condition 1, the project submitted water quality monitoring results. For Condition 2, the project reported operating under the draft drawdown management plan with agency approval, during an emergency impoundment drawdown.

2018: There were no reported changes or compliance issues. The project remains in compliance based on the annual review.  For Condition 1, the project reported completion of water quality monitoring. For Condition 2, the project reported submitting a draft drawdown management plan for agency review.

认证历史

2022 年 1 月 1 日： LIHI 证书期限已根据 2022 年 1 月 1 日发布的 LIHI 第 2 版认证手册 2.05 版延长。有关新期限，请参阅上面的设施表。

2018 年 6 月 19 日 – The 30-day appeal window for the preliminary recertification decision of the Gilman Hydroelectric Project closed on June 14, 2018 with no appeals to the decision received. The decision is therefore final and the Gilman Hydroelectric Project is recertified for a 5-year term from December 4, 2017 through December 3, 2022.

May 15, 2018 – On May 14, 2018, the Gilman Hydroelectric project has received preliminary approval for a new 5-year term of Low Impact Certification. This decision is preliminary pending the 30-day appeal window. Only those who commented in the initial application 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 comments@lowimpacthydro.org with “Gilman Hydroelectric Project” in the subject line, or by mail addressed to the Low Impact Hydropower Institute, 329 Massachusetts Ave, Suite 2, Lexington, MA 02420. All requests will be posted to the website and the applicant will have an opportunity to respond and any response will also be posted. 请求必须在 2018 年 6 月 14 日东部时间下午 5 点前收到。  The full application and reviewers report are available below. If no appeal requests are received and the decision becomes final, the new term for the Rolfe 运河 Project will be September 6, 2017 through September 5, 2022.

February 20, 2018: The Low Impact Hydropower Institute has received a complete application for a new term of Low Impact Certification for the Gilman Hydroelectric Project. LIHI is seeking public comment on this application.  Specifically, we are interested in knowing whether you think the Gilman 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 手册 然后查看下面发布的项目 2018 年申请材料。与特定 LIHI 标准（流量、水质、鱼类通道等）直接相关的评论将最有帮助，但所有评论都会被考虑。评论可以通过电子邮件提交给研究所 comments@lowimpacthydro.org with “Gilman Comments” in the subject line, or by mail addressed to the Low Impact Hydropower Institute, 329 Massachusetts Avenue, Suite 2, Lexington, MA 02420.  Comments must be received at the Institute on or before 5 pm Eastern time on April 21, 2018 予以考虑。所有评论都将发布到网站上，申请人将有机会作出回应。任何回应也将发布。

2017年10月12日： The Gilman Hydroelectric Project certification term has been extended to March 31, 2018.

2013年5月28日： The Gilman Hydroelectric Project has been certified as low impact for a five year term, effective December 4, 2012 and expiring December 4, 2017.

2013年2月4日： The public comment period on application has closed.

2012年12月4日： Ampersand Gilman Hydro LP has submitted an application for the certification of its Gilman Hydroelectric Project. The application was posted to the website and the public comment period was opened.

认证文件

2018 年重新认证

2012 年认证

重要文件