LIHI Certificate #93 - Arnold Falls Project, Vermont

Arnold Falls Project, LIHI #93
項目名稱 Arnold Falls
理海證書編號 93
LIHI 證書期限 2017 年 2 月 6 日 – 2027 年 2 月 5 日
擁有者 綠山電力公司
狀態 佛蒙特
地點 Located at river mile 9.7 on the Passumpsic River, a tributary of the Connecticut River, approximately 5.5 miles downstream of the Pierce Mills project.
裝置容量 350 kW
平均年發電量 1,484 MWh
設施類型 徑流
聯邦能源監管委員會 不。 P-2399 issued in 1994, expires 11/30/2034

The Arnold Falls Project is located in northeastern Vermont in St. Johnsbury, Caledonia County, on the Passumpsic River. The 壩 和 發電站 were built in 1928 by the Twin State Gas & Electric Company following the 1927 flood which did extensive damage to the original station. Before 1928, the site contained facilities for water-powered manufacturing, including mills and pattern shops. Before these, a natural waterfall existed at the site. The falls bear the surname of Dr. Jonathan Arnold, an early settler and entrepreneur who constructed the first sawmill there in 1787 and a gristmill the following year. In 2009, the existing 木製嬰兒床 dams were abandoned in place and replaced with reinforced concrete 重力壩 immediately downstream of the timber crib dams.

The project is the fourth dam on the Passumpsic River. Closest upstream is 皮爾斯米爾斯 (LIHI #92). Downstream are 量具 (LIHI #94), Passumpsic 計畫 (LIHI #95) 以及河上第一座大壩東巴尼特（FERC 編號 3051）。這條河長 22.7 英里，是康乃狄克河的一條支流，匯入科默福德下游 壩 （部分 十五哩瀑布項目，LIHI #39）。該項目由 Green Mountain Power (GMP) 擁有，該公司是第一家獲得 B 類公司。

The project includes two concrete gravity dams, a powerhouse with a turbine and generator, bypassed reach, 變電站， 和 溢洪道.

The North Dam is 180-feet-long by 18-feet-high, with a dam crest elevation of 573.0 feet msl. It is topped with 20.4-inch hinged steel 閃光板. The South Dam is 64-feet-long by 15-feet-high, with a crest elevation of 572.0 feet msl, topped with an inflatable 插板 system. The intake is 20-feet-wide with trashracks and a manually operated bulkhead gate. The dam creates a bypassed reach about 300-feet-long.

The powerhouse contains one vertical shaft turbine and a generator rated at 350 kW. The downstream 魚道 facility is located in the sluiceway of the spillway adjacent to the intake.

該項目運營於 徑流 mode and impounds a 10-acre reservoir. The project provides minimum flows of 78 cfs through the North 洩洪道 and 33 cfs through the South Spillway when not generating. The flow regime was established via consultation with Vermont Agency of Natural Resources (VANR) and the US Fish and Wildlife Service (USFWS) to ensure protection of aquatic habitat.

Waters within the project reach are designated as Class B and impaired for e. coli contamination due to the St. Johnsbury wastewater treatment facility. The project is not responsible for this contamination. Class B waters are managed to achieve aquatic wildlife habitat, aesthetic value, public water supply, and primary contact recreational uses.

While American eel populations were historically plentiful in the Connecticut River watershed, the presence of many dams on the river now prevent passage of the species. The downstream East Barnet Dam and dams on the Connecticut River block passage and USFWS has not requested upstream passage at the project. The project facilitates downstream passage through the sluiceway which provides a 25-cfs flow to a 瀑布水潭. The passage is primarily utilized by resident trout species.

The project lands consist of roughly 10.6 acres. No lands of significant ecological value exist in the project property, as very little outside of the powerhouse and dam is under the project’s ownership. The surrounding land is primarily mixed industrial and commercial buildings.

Threatened or endangered species potentially present in the project vicinity include the Northern Long-eared Bat. Consultation with VANR has determined that project operations do not negatively affect the listed species. The primary concern for the Northern Long-eared Bat is the clearing of trees, of which the species rely on for habitat.

The project infrastructure, including the dams, intake structure, generating units, and powerhouse, is eligible for the 國家歷史遺跡名錄. The project operates under a cultural resources management plan, which ensures annual communications with the Vermont Division for Historic Preservation.

Recreational resources at the project include a canoe portage, portage trail, and a handicapped-accessible viewpoint and fishing deck just downstream of the project. The project owner voluntarily revised the 帕蘇姆西克河獨木舟和休閒指南 並提供設施參觀指導。公眾可以免費進入。

合規狀態

目前證書中沒有針對設施的特定條件。

2025: 未發現重大變更或合規問題。根據年度審查，該項目仍符合規定。

2024: 未發現重大變更或合規問題。根據年度審查，該項目仍符合規定。

2023: 未發現重大變更或合規問題。根據年度審查，該項目仍符合規定。

2022: 未發現重大變更或合規問題。根據年度審查，該項目仍符合規定。

2021: 沒有報告變更或合規問題。根據年度審查，該項目仍符合規定。

2020: 沒有報告變更或合規問題。根據年度審查，該項目仍符合規定。

2019: 沒有報告變更或合規問題。根據年度審查，該項目仍符合規定。

2018: The project reported installing new directional signage along the canoe portage route and a new picnic bench at the Le Clair site. FERC approved the improvements in 2017. The project remains in compliance based on the annual review.

2017: 目前證書的年度報告尚未生效。

認證歷史

2022 年 1 月 1 日： 根據 2022 年 1 月 1 日發布的 LIHI 第二版認證手冊第 2.05 版，LIHI 證書期限已延長。

2018年8月15日： The decision to recertify the Arnold Falls Hydroelectric Project is final. No appeals were received during the appeal period which closed on August 11, 2018. The new term for the Arnold Falls Project is from February 6, 2017 through February 5, 2022.

2018 年 7 月 12 日： The Low Impact Hydropower Institute (LIHI) preliminarily approved the Arnold Falls 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 評論@lowimpactHydro.org with “Arnold Falls 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. 請求必須在 2018 年 8 月 11 日東部時間下午 5 點前收到。  The full application and reviewer’s report are available below. If no appeal requests are received and the decision becomes final, the new term for the Arnold Falls Project will be February 6, 2017 through February 5, 2022.

2018年6月11日： The Arnold Falls certification term has been extended again to September 30, 2018.

2018年4月3日： The Arnold Falls y certification term has been extended again to June 30, 2018.

2017年11月28日： The Arnold Falls  certification term has been extended to March 31, 2018.

2016年12月30日： The Low Impact Hydropower Institute has received a complete application for a new term of Low Impact Certification for the Arnold Falls Hydroelectric project. The application materials can be found in the Files section below. LIHI is seeking public comment on this application.  Specifically, we are interested in knowing whether you think the Arnold Falls project meets the LIHI Low Impact Certification Criteria, as revised in the 2nd Edition Handbook released in March 2016.  Please review the program and criteria in LIHI’s revised 手冊 然後查看專案頁面上發布的該專案 2016 年申請資料。與特定 LIHI 標準（流量、水質、魚類通道等）直接相關的評論將最有幫助，但所有評論都會被考慮。意見可以透過電子郵件提交給研究所 評論@lowimpactHydro.org with “Arnold Falls Project Comments” in the subject line, or by mail addressed to the Low Impact Hydropower Institute, PO Box 194, Harrington Park, New Jersey 07640.  評論必須在 2017 年 3 月 4 日東部時間下午 5 點前送達研究所 予以考慮。所有評論都將發佈到網站上，申請人將有機會回應。任何回應也將被發布。

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

2012年9月9日： The Arnold Falls 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： 該申請的公眾評論期已結束。

2012年2月6日： The Central Vermont Public Service Corporation has submitted an application for the certification of the Arnold Falls project. Public comment period on application has opened.

認證文件

2017 年重新認證

2012 年認證

關鍵文件