LIHI Certificate #95 – Passumpsic Project, Vermont

LIHI Certificate #95 - Passumpsic Project, Vermont

项目名称	Passumpsic
LIHI 证书编号	95
LIHI 证书期限	February 6, 2017 – February 5, 2027
所有者	绿山电力公司
状态	佛蒙特
地点	Located at river mile 5.5 on the Passumpsic River, a tributary of the Connecticut River, approximately 1.7 miles downstream of the Gage Project.
装机容量	0.7 MW
平均年发电量	1,998 MWH
设施类型	径流式
联邦能源管理委员会不。	P-2400 issued in 1994, expires 11/30/2034

The Passumpsic Project is located in northeastern Vermont near St. Johnsbury, in Caledonia County, on the Passumpsic River. It is the second 坝 on the river and located at river mile 5.5, downstream of several projects including 量具 (LIHI #94), 阿诺德瀑布 (LIHI #93)，和 Pierce Mills (LIHI #92). The East Barnet Project (FERC No. 3051) is the first dam on the river. The river is 22.7 miles long and a tributary to the Connecticut River, entering just downstream of Comerford 坝（部分十五英里瀑布项目，LIHI #39).

The Passumpsic River Project was built in 1905 – 1906 for the St. Johnsbury Electric Company. The 发电站 was completely destroyed in the flood of 1927. Portions of its foundation and those of its associated power 运河 remain buried on the other side of the existing canal. The plant was rebuilt in 1929 in the location of the Chase leatherboard mill water wheel, which was also destroyed in the flood. The building behind the powerhouse is the remainder of the former leatherboard mill. The project is owned by Green Mountain Power (GMP), the first energy utility certified as a B 类公司。

The project includes a dam, 闪光板, headgate, power canal, powerhouse, intake, 泄洪道, one vertical shaft turbine, bypassed reach, and 变电站.

具体重力坝 consists of two sections: a south section 122-feet-long with a maximum height of 10-feet, topped with 1-foot-high flashboards; and a north section 126-feet-long with a maximum height of 10-feet, topped with 1-foot-high flashboards. The dam is equipped with a 27-foot-wide headgate structure with two 门. The power canal conveys flow to the powerhouse via an integral intake with an inclined trashrack. The canal is 19 to 22-feet-wide and 87-feet-long. There is also a sluice and a 24-foot-long overflow spillway. The powerhouse contains one vertical shaft turbine and generator with an installed capacity of 0.7 MW, as well as appurtenant equipment. A substation is located adjacent to the power canal. The downstream 鱼道 facility consists of a sluiceway in the spillway adjacent to the canal headworks. The bypassed reach is about 350-feet-long.

该项目采用径流 mode and impounds an 18.3-acre reservoir. The project provides an 86-cfs minimum flow into the bypass reach. Portions of this flow are used for aesthetic enhancement and fish passage seasonally. Aesthetic flows are provided from June 1 through October 31 and fish passage flows (9-25 cfs) are provided from April 1 through June 15 and from September 15 through November 15. The flow regime was developed with recommendations from the Vermont Agency of Natural Resources (VANR) and United States Fish and Wildlife Service (USFWS).

项目范围内的水域被指定为 B 类，由于圣约翰斯伯里污水处理厂通过合流污水溢流而受到大肠杆菌污染。VANR 已确认该项目不会对水质产生不利影响，也不是河流污染的根源。B 类水域的管理是为了支持水生生物、野生动物和水生栖息地、公共供水、灌溉、主要接触娱乐和美学。

康涅狄格州流域历史上曾是自然生成的大西洋鲑鱼洄游地，拔除 from the river system due to the construction of dams. These downstream dams create a barrier to upstream passage at the project. Resident species of the Passumpsic River include brown trout, brook trout, and rainbow trout. Downstream passage is facilitated via a surface bypass 水槽 and a 24-inch-diameter transport pipe with a 9-25 cfs passage flow. Trashracks with 1-inch spacing mitigate the potential for 夹带. The project owner consulted with USFWS and VANR to develop this passage facility.

The project lands consist of 34 acres. The area surrounding the impoundment and project lands are primarily rural residential housing and farmland. No lands of significant ecological value exist in the area and run-of-river operations mitigate the potential for erosion of the shoreline.

Threatened and endangered species potentially within project vicinity include the Northern Long-eared Bat and Garber’s sedge. The primary concern for the listed species is the disruption of critical habitat. Consultation with the VANR concluded that project operations and the construction of the downstream passage facility would not have any negative impact on the listed species.

项目区内的文化资源包括符合列入国家历史遗迹名录. The project owner submits annual reports to the Vermont Division for Historic Preservation on any activities pertinent to the stewardship of the project’s cultural resources.

Recreational resources at the project include a canoe portage and picnic area. The project owner voluntarily revised the 帕苏姆西克河独木舟和休闲指南 and provides guided facility tours. 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：

Condition closed in 2023. Condition 1: The Owner shall provide LIHI with evidence that FERC has approved the Revised Flow Management Plan (filed by GMP on April 25^th, 2018) within 60 days from the date of issuance of that approval.

Condition closed in 2023. 条件2： The Owner will provide LIHI with evidence that FERC has approved the Downstream 鱼道 and Operations and Maintenance Plan (filed by GMP on April 25^th, 2018) within 60 days from the date of issuance of that approval. If FERC issues new terms and conditions, the LIHI Certification is subject to amendment to incorporate such terms and conditions.

Condition satisfied in 2018. Condition 3: The Owner shall provide a LIHI with a copy of the final report to FERC demonstrating the completion of the portage pathway improvements within 60 days of filing that report with FERC.

2025: 未发现任何重大变化或合规问题。根据年度审查，该项目仍然合规。

2024: 未发现任何重大变化或合规问题。根据年度审查，该项目仍然合规。

2023: No material changes or compliance issues were identified. The project remains in compliance based on the annual review. Upon review of the FERC docket regarding Conditions 1 and 2, LIHI determined that there had been no requirement for FERC to approve the revised flow management plan or the downstream passage O&M plan, thereby rendering the two conditions no longer applicable and thus closed.

2022: No material changes or compliance issues were identified. The project remains in compliance based on the annual review. Both conditions remain open pending FERC approval of the plans filed in 2018.

2021: There were no reported changes or compliance issues. For Conditions 1 and 2 no FERC issuance was received. The project remains in compliance based on the annual review.

2020: There were no reported changes or compliance issues. For Conditions 1 and 2 no FERC issuance was received. The project remains in compliance based on the annual review.

2019: There were no reported changes or compliance issues. Downstream fish passage and recreation enhancements were completed and reported to FERC in 2018. For Conditions 1 and 2 no FERC issuance was received. The project remains in compliance based on the annual review.

2018: The project reported downstream passage construction was initiated in 2017 with expected completion in 2018 along with lower portage trail enhancements and signage. The project remains in compliance based on the annual review.

2017: 当前证书的年度报告尚未生效。

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。

October 10, 2018: The decision to recertify the Passumpsic Hydroelectric Project is final. No appeals were received during the appeal period which closed on October 6, 2018. The new certification term for the Project is from February 6, 2017 through February 5, 2022.

September 6, 2018: On September 4, 2018, the Low Impact Hydropower Institute (LIHI) preliminarily approved the Passumpsic Hydroelectric Project 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 during the 60-day comment period are eligible to file an appeal. Such appeal needs to include an explanation as to how the projects do not meet the LIHI criteria. Appeal requests can be submitted by email to comments@lowimpacthydro.org with “Passumpsic 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. Requests must be received by 5 pm Eastern time on October 6, 2018. The full application and reviewers report are available below. If no appeal requests are received and the decision becomes final, the new term for certification will be February 6, 2017 – February 5, 2022.

June 12, 2018:The Low Impact Hydropower Institute has received a complete application for a new term of Low Impact Certification for the Passumpsic Hydroelectric Project (LIHI # 95). The Project is located on the Passumpsic River in St. Johnsbury, Vermont. 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 手册 and then review the Project’s 2018 application materials posted below. Comments that are directly tied to specific LIHI criteria (flows, water quality, fish passage, etc.) will be most helpful, but all comments will be considered. Comments may be submitted to the Institute by e-mail at comments@lowimpacthydro.org with “Passumpsic Project 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 August 11, 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。

2018年6月11日： The Passumpsic Hydroelectric project has been granted another extension of the current certificate term. The new expiration date is November 30, 2018.

2017年11月28日： The Passumpsic Hydroelectric project has been granted another extension of the current certificate term. The new expiration date is March 31, 2018.

2016年12月16日： The Passumpsic Hydroelectric project has been granted an extension of the current certificate term. The new expiration date is August 6, 2017. See extension letter for explanation below.

September 13, 2012: The Passumpsic Project has been certified as low impact for a five year term, effective February 6, 2012 and expiring February 6, 2017.

2012年4月6日： Public comment period on the application has closed.

2012年2月6日： The Central Vermont Public Service Corporation has submitted an application for the certification of the Passumpsic Project. Public comment period has been opened.