N-3NSPI (CA) RIR-1 to 18 - Redacted
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CI 50518 - HYD - Ruth Falls Main Dam Refurbishment ATO (NSUARB M11927) NSPI Responses to The Consumer Advocate Information Requests
AI summary The document outlines NSPI's responses to information requests from The Consumer Advocate regarding the Hyd - Ruth Falls Main Dam Refurbishment ATO (NSUARB M11927). It provides details on the project and its implications.
CI 50518 - HYD - Ruth Falls Main Dam Refurbishment ATO (NSUARB M11927) NSPI Responses to The Consumer Advocate Information Requests
AI summary The document outlines NSPI's responses to information requests from The Consumer Advocate regarding the Hyd - Ruth Falls Main Dam Refurbishment ATO (NSUARB M11927). It provides details on the project and its implications.
1 4 Based on the permitting process as understood at the time of the original filing, the 5 legislated timeline for the Watercourse Alteration Approval process was 60 days. This 6 excludes time for NSECC to review information, for proponen...
AI summary The original filing indicated that the Watercourse Alteration Approval process typically takes 2-6 months due to additional information requests and Crown Consultation with the Mi'kmaq of NS, exceeding the legislated 60-day timeline. This is highlighted in the context of the CI 50518 - HYD - Ruth Falls Main Dam Refurbishment ATO (NSUARB M11927) and NSPI responses to The Consumer Advocate Information Requests.
REDACTED As indicated in NS Power's response to CA IR-5, part (a), these timelines were exceeded due to requirements for additional information and consultation. The total timeline to receive the watercourse alteration approval for Ruth Fa...
AI summary The permitting process for the Ruth Falls Main Dam Refurbishment project has exceeded legislated timelines due to requirements for additional information, studies, and consultation. The total timeline for watercourse alteration approval was 4.5 years, and the DFO FAA process is expected to take at least 4 years and 6 months.
NON-CONFIDENTIAL 1 NSUARB IR-12(a) for a complete timeline of communication with DFO. DFO's review 2 of NS Power's FAA application remains ongoing. 3 4 (c) Please refer to part (a). The modernization of the Fisheries Act in 2019 included t...
AI summary The NSUARB IR-12(a) outlines communication with DFO regarding the review of NS Power's FAA application. The modernization of the Fisheries Act in 2019 includes provisions on fish habitat and Indigenous Peoples, which are relevant to the Ruth Project's regulatory review.
NON-CONFIDENTIAL 2 - 3 Reference: "NS Power applied for the Watercourse Alternation Permit on December 17, - 4 2019 and received the Permit Approval on June 30, 2024. The Company applied for an - 5 authorization in accordance with Transpor...
AI summary The document references NS Power's application for a Watercourse Alteration Permit and the Navigation Protection Program, including dates of submission and approval. It requests a detailed timeline and supporting documentation for both applications.
22 NSECC Communication Date Received NS Power Response NS Power Response Date Attachment Reference Watercourse Alteration December 1 Approval Application submitted to NSECC 16, 2019 Additional January 7, NS Power provided a February 27, 2...
AI summary The document outlines NS Power's responses to information requests from NSECC regarding a watercourse alteration approval application submitted in December 2019. NS Power provided additional letters in response to requests dated January 2020 and March 2020. The proceeding is related to the Ruth Falls Main Dam Refurbishment ATO (NSUARB M11927).
2 (b) NS Power applied for a Navigable Waters Authorization on April 30, 2021. This 3 application is submitted through TC's online Navigation Protection portal. A copy of the 4 email confirming submission of the application is provided in...
AI summary NS Power applied for a Navigable Waters Authorization on April 30, 2021, through TC's online Navigation Protection portal. The application is pending and is expected to be issued alongside DFO authorization.
CI 50518 CA IR-5 Attachment 1 Page 2 of 35 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Nova Scotia Environment Application for Approval DIVISION 1 - WATER
AI summary This document is an application for approval by Nova Scotia Environment under Division 1 - Water. It is part of a regulatory proceeding and contains confidential information that has been redacted.
Site 1 of 1 Ruth Falls Headpond Watercourse Name East River Tributary To East River Watershed Name (if applicable) If Applying for a Wetland Alteration, please specify the Site Type Alteration Compensation Site Name Is Watercourse a Fish H...
AI summary The document provides details about a site located on the East River in Halifax, including property information, coordinates, and access directions. The site is identified as being within a municipal drinking water watershed and is associated with the East River watercourse.
SECTION 4 - ACTIVITY Proposed Activity - Please check (✔) all that apply. Activity Complete Sections Activity Complete Sections Boat Launch 4, 5A, 6A ,7 Bridge/Open Bottom Structure 4, 5A, 5C, 6A, 7 Culvert/Closed Bottom Structure 4, 5A, 5...
AI summary The document outlines proposed activities related to water and fish habitat management, including dam construction, water withdrawal, and wetland alteration, with specific sections to complete and a variance request noted. The project dates are from June 1, 2020, to November 30, 2020.
CI 50518 CA IR-5 Attachment 1 Page 6 of 35 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Nova Scotia Environment Application for Approval DIVISION 1 - WATER
AI summary The document is an application for approval related to water regulations under Division 1 of the Nova Scotia Environment. It is part of a regulatory proceeding and involves confidential information that has been redacted.
SECTION 5 - ACTIVITY DETAILS Type of Alteration New Construction Removal ● Replacement Expansion rock, silt Description of Channel Bottom Refurbishing dam by replacing stop log bays with rubber dams, installing an uncontrolled overflow spi...
AI summary The document provides detailed information about a construction project involving the refurbishment of a dam, including the replacement of stop log bays with rubber dams, the installation of an uncontrolled overflow spillway, and the addition of sluice gates. It also includes technical specifications and details about the watercourse and crossing types.
CI 50518 CA IR-5 Attachment 1 Page 8 of 35 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Nova Scotia Environment Application for Approval DIVISION 1 - WATER Wetland Type - Compensation (check all that apply) Type Compensation Area (ha) Type...
AI summary The document contains a section from an application for approval related to wetland type compensation. It includes categories for different wetland types, compensation methods, and their statuses. The form also requests compensation values and areas for various types of compensation.
CI 50518 CA IR-5 Attachment 1 Page 9 of 35 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Nova Scotia Environment Application for Approval DIVISION 1 - WATER
AI summary This document is a redacted page from an application by Nova Scotia Environment for approval under Division 1 - Water. The content is confidential and not fully disclosed.
Note: A legend must be supplied for all mapping describing symbols used, scale and north orientation. Description Submitted Waiver requested Reason for Waiver 6A - Attach for all applicable Water Applications Proof of Ownership/Agreement/L...
AI summary The document outlines the requirements for submitting various forms of documentation related to water applications, including proof of ownership, site plans, and environmental assessments. Incomplete or poor-quality submissions may result in delays, returns, or rejections of applications.
CI 50518 CA IR-5 Attachment 1 Page 10 of 35 Nova Scotia Environment Application for Approval DIVISION 1 - WATER Name (Please print or type): .
AI summary This document is an application for approval related to water regulations under the Nova Scotia Environment division. The page appears to be part of a larger submission, with placeholders for names and other information.
SECTIO ECTION A (FOR ALL APPLICATIONS) ALL INFORMATION MUST BE PROVIDED: Erosion and sedimentation control plan
AI summary The text outlines a section requiring the provision of an erosion and sedimentation control plan as part of the application process. This is a mandatory requirement for all applications.
2.1 Existing Project Area Ruth Falls Headpond is located immediately downstream of the Malay Falls Headpond. The reservoir is contained by a 190 m (620') long earthfill embankment and a 150 m (490') long concrete spillway structure. The sp...
AI summary The Ruth Falls Headpond is located downstream of the Malay Falls Headpond and is managed by NSPI Hydro Operations. It includes a fish ladder and louver system for fish migration, with specific flow requirements to support salmon and eel migration. The fish ladder operates seasonally, and only a few salmon have been captured since 2007.
3.0 REGULATORY PERMITS/APPROVALS A Watercourse Alteration Approval is required in accordance with Section 5(A)(1)(c) of the Activities Designation Regulations of the Environment Act . A separate request for review has been submitted to DFO...
AI summary A Watercourse Alteration Approval is required under the Environment Act. A separate request for review has been submitted to DFO to determine if a Fisheries Act Authorization is needed.
4.4 Equipment and Machinery All equipment and machinery required to be operated on or near a body of water will be mechanically sound with no leaking fuel tanks or hydraulic connections. Refuelling and lubrication shall be in designated ar...
AI summary The section outlines requirements for equipment and machinery used near water bodies, emphasizing mechanical integrity, safe refuelling practices, storage distances from water, flood protection, and oil spill preparedness.
CI 50518 CA IR-5 Attachment 1 Page 26 of 35 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Photo 2: View of Ruth Falls Dam, facing west Photo 3: Ruth Falls fishladder and bypass pipe
AI summary The document contains redacted information and includes photos of Ruth Falls Dam and its fishladder and bypass pipe. It is part of a regulatory proceeding in Nova Scotia and includes confidential information that has been removed.
RE: Application # 2019-2638165-00 With reference to your application please be advised that as a result of an initial review, your application has been deemed incomplete. As a result, Nova Scotia Environment (NSE) is requesting the followi...
AI summary The application has been deemed incomplete by Nova Scotia Environment (NSE), which has requested additional information including engineering drawings, construction schedules, erosion control plans, and descriptions of potential adverse effects and mitigation measures. The information must be submitted by April 7th, 2020, or the application may be rejected.
NSE Request: Provide the final, full size engineering drawing, which includes the actual scale and have been signed/stamped by an engineer recognised to operate in Nova Scotia.
AI summary The NSE Request is asking for the final, full-size engineering drawing that includes the actual scale and has been signed and stamped by an engineer recognized to operate in Nova Scotia.
NSE Request: Provide a detailed description of the potential adverse effects from all the proposed construction materials and the proposed mitigation measures.
AI summary The NSE Request asks for a detailed description of the potential adverse effects from all the proposed construction materials and the proposed mitigation measures.
CI 50518 CA IR-5 Attachment 4 Page 2 of 2 REDACTED (CONFIDENTIAL INFORMATION REMOVED) - 5. Confirm that proposed high level water management approach described in the application is still the intended approach (closing gates at Malay and l...
AI summary The document outlines several questions and requests for information related to a water management approach involving gate operations at Malay and Ruth Falls, including concerns about downstream velocities, water quality monitoring, impacts on aquatic life, and public engagement. The request is submitted by NSE with a deadline of June 25th, 2020.
CI 50518 CA IR-5 Attachment 5 Page 3 of 160 REDACTED (CONFIDENTIAL INFORMATION REMOVED) June 22, 2020 Grant Brown 4. NSP has confirmed work is proposed to occur outside of the Timing Window for watercourse alteration (per letter dated Febr...
AI summary NSP has confirmed that proposed work will occur outside the Timing Window for watercourse alteration, during seasons with higher precipitation and flow, and when extreme events are more common. The document requests a description of how high flow scenarios will be managed, including the use of a free overflow spillway, erosion and scour protection plans, and the scope of potential impact from the proposed works.
Appendix A 2017 Rare Species Assessment, Wetland Delineation, and Functional Assessment
AI summary This document provides an assessment of rare species, wetland delineation, and functional assessment conducted in 2017.
CI 50518 CA IR-5 Attachment 5 Page 9 of 160 REDACTED (CONFIDENTIAL INFORMATION REMOVED) RARE SPECIES ASSESSMENT, WETLAND DELINEATION, AND FUNCTIONAL ASSESSMENT Ruth Falls Dam September 29, 2017
AI summary This document discusses the environmental assessment of the Ruth Falls Dam, including rare species evaluation, wetland delineation, and functional assessment, conducted on September 29, 2017.
2.1.2 Species of Conservation Interest Flora and fauna SOCI which have been recorded within 100 km of the Study Area are provided in Table 1 (Appendix B). The following SOCI were recorded within 100 km of the Study area: - 9 fish; - 2 mamm...
AI summary The text lists species of conservation interest (SOCI) recorded within 100 km and 5 km of the Study Area, categorizing them into various groups such as fish, mammals, birds, bats, herptiles, invertebrates, and plants. Priority species within 5 km are also identified.
Table A: SOCI Species Most Likely to Occur in the Study Area Common Name Scientific Name SARA NSESA NSDNR COSEWIC ACCDC BIRDS American Bittern Botaurus Ientiginosus Not Listed Not Listed 3 Sensitive Not Listed S3S4B American Kestrel Falco...
AI summary Table A lists SOCI species most likely to occur in the study area, including their conservation status across various regulatory bodies and organizations. The table includes species such as the American Bittern, American Kestrel, and Baltimore Oriole, with their respective statuses under SARA, NSESA, NSDNR, COSEWIC, and ACCDC.
CI 50518 CA IR-5 Attachment 5 Page 15 of 160 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Rare Species Assessment, Wetland Delineation, and Functional Assessment September 29, 2017 Ruth Falls Dam Ms. Jenny LeBlanc
AI summary This document includes a rare species assessment, wetland delineation, and functional assessment conducted on September 29, 2017, for the Ruth Falls Dam. It is associated with Ms. Jenny LeBlanc.
CI 50518 CA IR-5 Attachment 5 Page 16 of 160 Rare Species Assessment, Wetland Delineation, and Functional Assessment Ruth Falls Dam September 29, 2017 Ms. Jenny LeBlanc Nova Scotia Power Inc.
AI summary This document is a rare species assessment, wetland delineation, and functional assessment report for the Ruth Falls Dam, dated September 29, 2017, prepared for Nova Scotia Power Inc. by Ms. Jenny LeBlanc.
CI 50518 CA IR-5 Attachment 5 Page 17 of 160 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Rare Species Assessment, Wetland Delineation, and Functional Assessment September 29, 2017 Ruth Falls Dam Ms. Jenny LeBlanc
AI summary The document contains a redacted page from a regulatory proceeding, including a rare species assessment, wetland delineation, and functional assessment related to the Ruth Falls Dam, prepared on September 29, 2017, and signed by Ms. Jenny LeBlanc.
2.2.1 Methodology An on-site rare species assessment was completed targeting vegetative SOCI. The vegetative SOCI method employed a random-meander methodology. Special attention was made for SOCI species identified as likely to occur withi...
AI summary An on-site rare species assessment was conducted using a random-meander methodology to identify vegetative SOCI within the study area. Incidental observations of birds and mammals were recorded, and confirmatory assessments were made using various botanical references.
2.2.2 Results One SOCI was identified at the Project site. A Common Loon (listed as 'May be at Risk' by NS DNR) was heard within the vicinity of the dam, however, it was not visually observed nor was any nesting habitat observed within the...
AI summary A single SOCI was identified at the Project site. A Common Loon was heard near the dam, but no nesting habitat or visual observations were made. No plant SOCI were observed during the wetland and rare species assessment.
3.1.1 Methodology A desktop identification of the location and extent of potential wetlands across the Project site was completed by reviewing the following information sources: - Satellite and aerial photography; - Nova Scotia Wet Areas M...
AI summary A desktop study identified potential wetlands on the Project site using satellite imagery, the Nova Scotia Wet Areas Mapping database, the Nova Scotia Geomatics Centre, and the NS Significant Species and Habitats database.
3.1.2 Results The NSDNR wetlands database identifies one wetland within the Study area (Drawing 2A, Appendix A). The wetland is labeled as a 'Swamp' and appears to be contiguous with the lake. It is located in the western end of the Study...
AI summary The Study area contains one identified wetland labeled as a 'Swamp' near a lake, and potential wet areas near the reservoir and dam. The area is located within specific watersheds as outlined in the document.
3.2.1 Methodology Wetland delineation was completed September 21, 2017. Wetland boundaries, data points, and watercourse (and drainage) flow paths were recorded using a GPS receiver capable of sub 5 m accuracy. The location of wetland boun...
AI summary Wetland delineation was conducted on September 21, 2017, using GPS to record boundaries, data points, and watercourse flow paths. Wetland identification requires the presence of hydrophytic vegetation, hydrologic conditions, and hydric soils as per the US Army Corps of Engineers (1987).
CI 50518 CA IR-5 Attachment 5 Page 20 of 160 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Rare Species Assessment, Wetland Delineation, and Functional Assessment September 29, 2017 Ruth Falls Dam Ms. Jenny LeBlanc Nova Scotia Power Inc. Pro...
AI summary The document details an environmental assessment of Wetland 4 near the Ruth Falls Dam, conducted by Nova Scotia Power Inc. It describes the wetland's vegetation, hydrology, and soil composition, and references a table and photo log for further information.
Table B: Summary of Wetland Characteristics for Wetland 1 Wetland Ident Wetland 1 Wetland 2 Wetland 3 Wetland 4 Wetland Area Project site (h 0.0709 0.1266 0.0311 0.0866 UTM Coordination zone 20T) ates (NAD83 539223.6 E, 497802.9 N 539269 E...
AI summary Table B presents a detailed summary of wetland characteristics for Wetland 1, including area, coordinates, type, landscape position, landform, waterflow, soil type, surface/hydrologic features, boundary, and vegetation composition. It provides specific data for multiple wetlands.
CI 50518 CA IR-5 Attachment 5 Page 23 of 160 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Rare Species Assessment, Wetland Delineation and Functional Assessment September 29, 2017 Ruth Falls Dam Ms. Jenny LeBlanc
AI summary This document discusses a rare species assessment, wetland delineation, and functional assessment conducted on September 29, 2017, at Ruth Falls Dam, led by Ms. Jenny LeBlanc.
CI 50518 CA IR-5 Attachment 5 Page 24 of 160 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Rare Species Assessment, Wetland Delineation and Functional Assessment September 29, 2017 Ruth Falls Dam
AI summary This document discusses a rare species assessment, wetland delineation, and functional assessment conducted on September 29, 2017, at the Ruth Falls Dam. These activities are likely part of an environmental review or regulatory process.
Ms. Jenny LeBlanc Nova Scotia Power Inc. Project #17-6170 FUNCTION DEFINITION POTENTIAL BENEFITS Prior designation of the wetland, by a natural resource or Commercial and social Public Use & environmental agency, as some type of special pr...
AI summary The text outlines various functions and benefits of wetlands, including public use, hydrologic support, water quality support, aquatic support, aquatic habitat, and transition habitat. It emphasizes the ecological and recreational value of wetlands and their designation as protected areas.
CI 50518 CA IR-5 Attachment 5 Page 25 of 160 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Rare Species Assessment, Wetland Delineation and Functional Assessment September 29, 2017 Ruth Falls Dam Ms. Jenny LeBlanc Nova Scotia Power Inc. Proj...
AI summary This document discusses the ecological assessment of four wetlands near the Ruth Falls Dam project, including their WESP-AC scores, hydrological differences, and ecological functions. Wetland 4 is highlighted for its connection to a permanent watercourse and its role in water quality support despite low function scores in some areas.
Table D: Normalized Function and Benefit Scores for Wetland 1-4 W lan d Fu ion Ot he et t nc s o r r W et lan d 1 W et lan d 2 W et lan d 3 W et lan d 4 Am h i b ian & Tu le Ha b ita rt t p 7. 5 2 7. 4 3 3. 3 1 2. 6 4 7. 2 5 6. 3 4 6. 1 9...
AI summary Table D presents normalized function and benefit scores for Wetland 1-4, with scores varying across different categories such as Amphibian and Tule Habitat, Waterbird Feeding Habitat, and Waterbird Nesting Habitat. The table includes comparisons between wetlands, indicating higher, moderate, and lower scores for each category.
CI 50518 CA IR-5 Attachment 5 Page 28 of 160 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Rare Species Assessment, Wetland Delineation and Functional Assessment September 29, 2017 Ruth Falls Dam Ms. Jenny LeBlanc Nova Scotia Power Inc. Proj...
AI summary This document contains a rare species assessment, wetland delineation, and functional assessment for the Ruth Falls Dam project, prepared on September 29, 2017, by Ms. Jenny LeBlanc of Nova Scotia Power Inc. as part of Project #17-6170.
5.0 CONCLUSIONS Field surveys completed in the Study area at the Ruth Falls Dam identified 4 wetlands; 2 treed swamps, 1 shrub swamp, and 1 shrub marsh. Functional assessments were completed on these wetlands identifying important function...
AI summary The study identified four wetlands near the Ruth Falls Dam, including treed and shrub swamps and a shrub marsh, and conducted functional assessments. A rare species assessment found one bird species of conservation interest, though no nesting habitat was observed for the Common Loon.
CI 50518 CA IR-5 Attachment 5 Page 29 of 160 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Rare Species Assessment, Wetland Delineation and Functional Assessment September 29, 2017 Ruth Falls Dam Ms. Jenny LeBlanc Nova Scotia Power Inc. Proj...
AI summary This document provides a rare species assessment, wetland delineation, and functional assessment for the Ruth Falls Dam project conducted on September 29, 2017, by Ms. Jenny LeBlanc of Nova Scotia Power Inc. under Project #17-6170.
CI 50518 CA IR-5 Attachment 5 Page 30 of 160 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Rare Species Assessment, Wetland Delineation and Functional Assessment September 29, 2017 Ruth Falls Dam Ms. Jenny LeBlanc Nova Scotia Power Inc. Proj...
AI summary The document outlines a rare species assessment, wetland delineation, and functional assessment conducted for the Ruth Falls Dam project by Nova Scotia Power Inc. It includes a disclaimer regarding liability and the qualifications of the report's authors, Heather Mosher and Shawn Duncan.
CI 50518 CA IR-5 Attachment 5 Page 31 of 160 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Rare Species Assessment, Wetland Delineation and Functional Assessment September 29, 2017 Ruth Falls Dam Ms. Jenny LeBlanc Nova Scotia Power Inc. Proj...
AI summary This document pertains to a rare species assessment, wetland delineation, and functional assessment conducted on September 29, 2017, for the Ruth Falls Dam project, prepared by Ms. Jenny LeBlanc of Nova Scotia Power Inc. under Project #17-6170.
Table 1: Flora and Fauna SOCI within 100 km of the Study Area, Ruth Falls Project#17-6170 Common Name Alewife American Eel Atlantic Salmon Atlantic Salmon - Inner Bay of Fundy pop. Atlantic Sturgeon Brook Trout Lake Trout Striped Bass- Bay...
AI summary Table 1 lists various species of flora and fauna within 100 km of the Ruth Falls Project, including their conservation status under different regulatory frameworks such as SARA, NSESA, NSDNR, COSEWIC, and ACCDC. The table provides information on species like Alewife, American Eel, and Atlantic Salmon, along with their conservation statuses and classifications.
Table 2: Flora and Fauna SOCI within 5 km of the Study Area, Ruth Falls Project#17-6170 ACCDC Common Goldeneye Bucephala clangula Not Listed Not Listed 4 Secure Not Listed S2B,S5N Common Nighthawk Chordeiles minor Threatened Threatened 1 A...
AI summary Table 2 lists various bird species within 5 km of the Ruth Falls Project, indicating their conservation status under different acts and databases. It includes information about their risk levels, such as 'Threatened' and 'At Risk', and their status in the ACCDC.
Delineation Methodology In order for a wetland determination to be made, the following three criteria were assessed the field: - Presence of hydrophytic (water loving) vegetation; - Presence of hydrologic conditions that result in periods...
AI summary The delineation methodology for determining wetlands involves assessing three criteria: hydrophytic vegetation, hydrologic conditions, and hydric soils. Soil pits and vegetation surveys were conducted to confirm these factors.
WETLAND DELINEATION IDENTIFICATION METHODOLOGY Dominant plant species observed in each wetland were classified according to indicator status (probability of occurrence in wetlands), in accordance with the U.S. Fish and Wildlife Service (US...
AI summary The document outlines a methodology for identifying wetlands based on dominant plant species classified according to their probability of occurrence in wetlands, referencing the U.S. Fish and Wildlife Service's National List of Vascular Plant Species and the Flora of Nova Scotia.
Wetland determination – The process or procedure by which an area id adjudged a wetland or non wetland. REDACTED (CONFIDENTIAL INFORMATION REMOVED) CI 50518 CA IR-5 Attachment 5 Page 59 of 160 APPENDIX E PHOTOGRAPH LOG CI 50518 CA IR-5 Att...
AI summary The text defines the process of wetland determination and includes a redacted section with a photograph log and page numbers from an attachment. No substantive content is provided due to redaction.
WETLAND 1 Cover Page: Basic Description of Assessment WESP-AC version 1.2 Site Name: Ruth Falls Dam Investigator Name: Heather Mosher Date of Field Assessment: 9/21/2017 Nearest Town: Sheet Harbour, NS Latitude (decimal degrees): 44.9546 L...
AI summary This document provides a detailed field assessment of Wetland 1 at Ruth Falls Dam in Sheet Harbour, NS, conducted by Heather Mosher on September 21, 2017. The assessment includes location details, wetland size, and confirms that the entire area was surveyed and rare plants were identified.
WETLAND 1CI 50518 CA IR-5 Attachment 5 Page 74 of 160 A B C D 24 Note If yo arke d AL L of : u m the SKI (N fi ). F3 r 0 o r 1, P to F9 ows xers 25 F4 Dom inan f Mo st ce o Dete rmin e wh ich t ood y pla ies ( <3 m tall) prise the rtion of...
AI summary The text contains a table with notes and instructions related to evaluating wetland characteristics, including factors such as abundant shrub coverage, species composition, and woody diameter measurements. It outlines criteria for determining the presence and coverage of specific plant types within a wetland area.
WETLAND 1CI 50518 CA IR-5 Attachment 5 Page 80 of 160 A B C >10 % D 253 F53 Typ e of Co in ver Buf fer With in 30 pslo f wh the land sitio upl and , the upl and lan d co that is N OT nnia l veg ion is m ostly (ma rk O NE) wet tran ns to et...
AI summary The text appears to be a table from a regulatory proceeding document, focusing on land classification and buffer zones around wetlands. It includes categories such as 'imperative surface' and 'bare early bare surface,' with numerical values indicating percentages or measurements. The content is highly technical and appears to relate to environmental or land-use regulations.
WETLAND 1 Aberrant Timing of Water Inputs In the last column, place a check mark next to any item that is likely to have caused the timing of water inputs (but not necessarily their volume) to shift by hours, days, or weeks, becoming eithe...
AI summary The table in 'WETLAND 1' examines factors that may cause shifts in the timing of water inputs to a wetland, such as stormwater from impervious surfaces, water subsidies, flow regulation, and structural interventions like dams or dikes. The focus is on how these factors may alter the temporal distribution of water inputs, making them more muted or flashy.
WETLAND 2 Cover Page: Basic Description of Assessment WESP-AC version 1.2 Site Name: Ruth Falls Dam Wetland 2 Investigator Name: Heather Mosher Date of Field Assessment: 9/21/2017 Nearest Town: Sheet Harbour, NS Latitude (decimal degrees):...
AI summary This document provides a detailed field assessment of Wetland 2 at Ruth Falls Dam, conducted by Heather Mosher on September 21, 2017. The assessment includes location details, site size, and information about the surveyor's experience and training with the WESP-AC methodology.
WETLAND 2CI 50518 CA IR-5 Attachment 5 Page 94 of 160 A B C D 24 Note If yo arke d AL L of the : u m F3 r 0 o SKI P to F9 (N fi ). r 1, ows xers 25 F4 Dom inan f Mo st ce o ies ( tall) (<3 ll). T Dete rmin e wh ich t ood y pla <3 m prise t...
AI summary The text contains a table with notes and criteria related to wetland evaluation, including information on dominant shrub species, woody diameter classes, and coverage percentages. The content appears to be part of a regulatory or environmental assessment process.
WETLAND 2CI 50518 CA IR-5 Attachment 5 Page 95 of 160 A B D F11 Gro und % B & are C Con side r the ts o f the AA tha t lac k su rfac ter a t the drie st tim e of the wing . Vie wed from dire ctly abo ve t he g d lay er, t he par e wa gro s...
AI summary The text contains a table with entries related to ground bareness percentages and conditions in a wetland area, likely part of an environmental assessment or regulatory evaluation. The table includes data on the visibility of bare ground and vegetation coverage, which may be relevant to regulatory decisions regarding land use or environmental protection.
WETLAND 2CI 50518 CA IR-5 Attachment 5 Page 97 of 160 A B C 5% of th 50-9 e AA D 0 169 F32 P ond ed O Wa ter pen - Min imu m S ize re (a m) Dur ing t of the ing s the larg est patc h of ater tha t is p ond ed a nd is in o r bo rder ing t h...
AI summary The text contains a table with technical criteria related to wetland evaluation and site protection, including parameters such as ponded water area, minimum size, and percentage of ponded water. These metrics are used to assess and classify wetland sites.
WETLAND 2CI 50518 CA IR-5 Attachment 5 Page 100 of 160 A B C D 253 F53 Co Typ e of in ver (ma NE) With in 30 pslo f wh the wet land tran sitio ns to upl and , the upl and lan d co that is N OT nnia l veg etat ion is m ostly rk O m u pe o e...
AI summary The text contains a table with information related to wetland transitions, buffer zones, and land conditions, including descriptions of upland land, buffer areas, and various surface features. The table appears to be part of an environmental or regulatory assessment.
WETLAND 2 Aberrant Timing of Water Inputs In the last column, place a check mark next to any item that is likely to have caused the timing of water inputs (but not necessarily their volume) to shift by hours, days, or weeks, becoming eithe...
AI summary The document presents a table for assessing factors that may alter the timing of water inputs to a wetland, such as stormwater from impervious surfaces, water subsidies from effluent, flow regulation, and physical structures like dams or dikes.
CI 50518 CA IR-5 Attachment 5 Page 104 of 160 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Wetland ID: Ruth Falls Dam Wetland 2 Date: 9/21/2017 Observer: Heather Mosher Latitude & Longitude (decimal degrees): 44.954467 , -62.502153 Scores w...
AI summary This document contains a record of a wetland assessment conducted on September 21, 2017, for the Ruth Falls Dam Wetland 2, with details including the observer and geographic coordinates. It notes that scores will be calculated after data entry in specific worksheets and mentions that benefits scores will be available in the final calculator once models are revised.
WETLAND 4 Cover Page: Basic Description of Assessment WESP-AC version 1.2 Site Name: Ruth Falls Dam Wetland 4 Investigator Name: Heather Mosher Date of Field Assessment: 9/21/2017 Nearest Town: Sheet Harbour, NS Latitude (decimal degrees):...
AI summary The document provides a detailed field assessment of Wetland 4 at Ruth Falls Dam, conducted by Heather Mosher on September 21, 2017. The assessment includes the site's location, size, and details about the survey, including the identification of rare plants and prior training in WESP-AC.
WETLAND 4CI 50518 CA IR-5 Attachment 5 Page 114 of 160 A B C D 24 Note If yo arke d AL L of u m : (N fi ). the F3 r 0 o r 1, SKI P to F9 ows xers 25 F4 inan f Mo Dom st ce o ies ( tall) (<3 ll). T Dete rmin e wh ich t ood y pla nt s <3 m p...
AI summary The text contains a table with notes and criteria related to wetland evaluation and site protection, including classifications for abundance of shrubs, species coverage, and woody diameter measurements. It outlines thresholds and categories for assessing wetland features.
WETLAND 4CI 50518 CA IR-5 Attachment 5 Page 115 of 160 A F11 B % B Gro und & C Con side r the f the AA tha t lac k su rfac t the drie st tim e of the wing . Vie wed from dire ctly abo he g d lay he ts o ter a ve t er, t e wa sea son roun D...
AI summary The text appears to be a table from a regulatory proceeding document discussing wetland evaluation and site protection assessment criteria. It contains fragmented and partially redacted information, focusing on ground irregularities and surface conditions during dry periods.
WETLAND 4CI 50518 CA IR-5 Attachment 5 Page 117 of 160 A B C D 169 F32 P ond ed O Wa ter pen - Min imu m S ize re (a m) Dur ing t of the ing s the larg h of tha t is p ond ed a nd is in o r bo rder ing t he A A is >0. 01 h bou t 10 m b y 1...
AI summary The text appears to be a table with technical details related to wetland evaluation and site protection assessment criteria. It includes information on ponded water, minimum size, and vegetation coverage, likely used for environmental compliance and regulatory purposes.
WETLAND 4CI 50518 CA IR-5 Attachment 5 Page 119 of 160 A B C D F43 Out flow Co nfin nt eme ing majo off e ts, in the pla whe urfa exit s th d wa rby, the Dur ater e AA ecte ters wat r run ven ces re s ce w or c onn nea er: 212 213 ly br he...
AI summary The document discusses wetland evaluation and site protection assessment criteria, focusing on outflow confinement mechanisms, major off-exits, and natural or artificial drainage systems. It includes details on dikes, dams, and other structures that affect water flow and land drainage.
WETLAND 4CI 50518 CA IR-5 Attachment 5 Page 120 of 160 245 A B C >10 % D 0 253 F53 Typ e of Co in ver Buf fer With in 30 pslo f wh the land sitio upl and , the upl and lan d co that is N OT nnia l veg ion is m ostly (ma rk O NE) wet tran n...
AI summary The text contains a table with environmental and land use data, including types of land cover, buffer zones, and descriptions of land features such as roads, buildings, and vegetation. It appears to be related to environmental impact assessments or land use planning.
WETLAND 4 Aberrant Timing of Water Inputs In the last column, place a check mark next to any item that is likely to have caused the timing of water inputs (but not necessarily their volume) to shift by hours, days, or weeks, becoming eithe...
AI summary The text discusses factors that may cause shifts in the timing of water inputs to a wetland, such as stormwater from impervious surfaces, water subsidies from effluent, flow regulation, and physical structures like dams or dikes.
TABLE 1 Potential Rare or Sensitive Vascular Plant Species on Governor Lake. Common Name Scientific Name Short-Awn Foxtail Alopecurus aequalis Purple-Stem Swamp Beggar-Ticks Bidens connata Bristly Sedge Carex comosa Cloud Sedge Carex hayde...
AI summary Table 1 lists potential rare or sensitive vascular plant species found on Governor Lake, including species such as Short-Awn Foxtail, Purple-Stem Swamp Beggar-Ticks, and various sedges and willow-herbs.
TABLE 2 Potential Rare or Sensitive Vascular Plant Species on Ruth Falls Flowage Common Name Scientific Name Southern Twayblade Listera australis Cloud Sedge Carex haydenii Sparse-Flowered Sedge Carex tenuiflora Northern White Cedar Thuja...
AI summary Table 2 lists potential rare or sensitive vascular plant species found on Ruth Falls Flowage, including species such as Southern Twayblade, Cloud Sedge, and Eel-Grass, among others. This information is likely relevant for environmental assessments or regulatory considerations involving the area.
1.1.2 Littoral Zone Vegetation Surveys The objective of the vegetation and wetland surveys was to determine whether any rare vascular plant species were present in the littoral zones of Governor Lake (Figure 1A and 1B) and Ruth Falls Flowa...
AI summary Vegetation and wetland surveys were conducted in September 2007 at Governor Lake and Ruth Falls Flowage to identify rare vascular plant species in the littoral zones. Field personnel included an EO&A staff member from NSPI and a biologist from Jacques Whitford. Species were recorded, and their population status was assessed using data from ACCDC and NSDNR.
1.1.3 Wetland Surveys The objective of the wetland surveys was to map and describe wetlands found around the periphery of the reservoirs. Topographical mapping, recent air photos and field visits were used to determine the distribution of...
AI summary The wetland surveys aimed to map and describe wetlands around the reservoirs using topographical mapping, air photos, and field visits. Plant communities and vascular plants in each wetland were documented.
TABLE 3 Wetlands Found Within the Littoral Zone of Governor Lake Reservoir Wetland ID Number Wetland Type Wetland Description 1 Wetland complex composed of low shrub dominated shore swamp, wet meadow (two subtypes), and shore bog (two subt...
AI summary Table 3 lists wetlands found within the littoral zone of Governor Lake Reservoir, detailing the types and descriptions of 10 wetlands, with some identified as 'Yes' and others as 'No' in terms of presence. The table includes wetland types such as shore marsh, shore swamp, and floating bog.
CI 50518 CA IR-5 Attachment 5 Page 138 of 160 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Appendix D lists the vascular plant species found in each of the five wetlands sampled on the Governor Lake reservoir. None of the vascular plant spe...
AI summary Appendix D lists vascular plant species found in five wetlands near the Governor Lake reservoir. No rare or sensitive species were identified, and Algae-like pondweed, considered uncommon to fairly common by ACCDC, was found in one wetland and deemed secure by NSDNR.
TABLE 4 Wetlands Found Within the Littoral Zone of Ruth Falls Flowage Reservoir Wetland ID Number Wetland Type Wetland Description 1 Coniferous treed shore bog No 2 Coniferous treed shore bog No 3 Coniferous treed shore bog (two subtypes)...
AI summary Table 4 lists 21 wetlands found within the littoral zone of Ruth Falls Flowage Reservoir, categorizing them by type and noting whether they contain subtypes. The table includes wetland IDs, types such as 'coniferous treed shore bog' and 'shore bog,' and indicates if subtypes are present.
Table A1 Vascular Plants Found in the Littoral Zone of Ruth Falls Flowage Common Name Scientific name ACCDC Rank NSDNR Rank Hardhack Spiraea Spiraea tomentosa S5 GREEN New York Fern Thelypteris noveboracensis S5 GREEN Marsh St. John's-Wort...
AI summary Table A1 lists vascular plants found in the littoral zone of Ruth Falls Flowage, including their scientific names and conservation rankings from ACCDC and NSDNR.
Table B1 Vascular Plants Found In the Littoral Zone of Governor Lake Common Name Scientific name ACCDC Rank NSDNR Rank Brown-Fruited Rush Juncus pelocarpus S5 GREEN Sheep-Laurel Kalmia angustifolia S5 GREEN Pale Laurel Kalmia polifolia S5...
AI summary This table lists vascular plants found in the littoral zone of Governor Lake, including their common and scientific names, as well as conservation ranks assigned by the ACCDC and NSDNR.
Table C1 Species Composition for the Five Wetlands Surveyed in the Governor Lake Reservoir Common Name Scientific Name ACCDO NSDNR Wetland Common Name Scientific Name Rank Rank 1 2 3 4 5 Red Maple Acer rubrum S5 GREEN Χ Х Х Х X Rough Bentg...
AI summary This table presents the species composition for five wetlands surveyed in the Governor Lake Reservoir, including the common and scientific names of plant species, their conservation ranks, and their presence in each wetland.
Table D1 Vascular Plant Cover of Dominant Species Found in the Five Wetlands Surveyed in the Governor Lake Reservoir Lake Reservoir ١ Wetla and Common Name Scientific Name 1a 1b 1c 1d 1e 2d 2e 3 4a 4b 5 Sommon Hams Solonimo Hame sb sb Iss...
AI summary Table D1 presents the vascular plant cover of dominant species found in five wetlands surveyed in the Governor Lake Reservoir. The table lists various plant species along with their coverage percentages in different areas of the reservoir, providing detailed ecological data for the region.
Table E1 Species Composition for the Six Wetlands Surveyed in the Ruth Falls Flowage Reservoir Common Name Scientific Name ACCDO NSDNR Wetland Common Name Scientific Name Rank Rank 3 4 7 8 8b 12 Balsam Fir Abies balsamea S5 GREEN Х Х Х Red...
AI summary This table lists the species composition of six wetlands surveyed in the Ruth Falls Flowage Reservoir, including common and scientific names, conservation status rankings, and presence in various wetlands.
Table E1 Species Composition for the Six Wetlands Surveyed in the Ruth Falls Flowage Reservoir Co Na Sc ien i f ic Na t C Ra C C S A D N D N W e lan d t m m on m e m e R Ra k k n n 3 4 7 8 b 8 1 2 ACCDC Ranking
AI summary The text presents a table titled 'Table E1 Species Composition for the Six Wetlands Surveyed in the Ruth Falls Flowage Reservoir,' which contains data on species composition for six wetlands. The table includes columns with scientific names, rankings, and numbers, though the data is incomplete or partially obscured. The 'ACCDC Ranking' section appears to be a classification or assessment provided by the Atlantic Canada Conservation Data Centre.
Table 3: Instantaneous Flood Peaks for the Tusket River Return period (years) Instantaneous Flow Peaks (cfs) 2 5,850 5 8,340 10 10,130 20 11,940 50 14,430 100 16,420 1000 24,220 The instantaneous flood peaks outlined in Table 3 take into c...
AI summary Table 3 presents instantaneous flood peaks for the Tusket River, including inflows from the Grant River, which contributes significant flow to Ruth Falls Headpond as noted in the 2008 flood study.
Table 4: Wetlands Found Within the Littoral Zone of Ruth Falls Headpond. Wetland ID Number Wetland Type Wetland Description 1 Coniferous treed shore bog No 2 Coniferous treed shore bog No 3 Coniferous treed shore bog (two subtypes) Yes 4 S...
AI summary A survey of the littoral zone of Ruth Falls Headpond identified several wetlands, with some containing rare or endangered species. However, no rare or endangered species were found during field surveys in 2007. The 2017 ACCDC search revealed two records of Salted shell lichen and Ruby-crowned Kinglet near the headpond.
5.0 ARCHAEOLOGICAL CONSIDERATIONS An Archaeological Screening and Reconnaissance (ARIA) for the Project impact area was completed in 2017. The purpose of the ARIA was to assess the potential for archaeological resources in the project area...
AI summary An Archaeological Screening and Reconnaissance (ARIA) was conducted in 2017 to assess the potential for archaeological resources in the project area, which includes approximately 5 hectares surrounding the dam and earthen embankment on the downstream side.
Chapter 1 Introduction On behalf of Nova Scotia Power Inc. (NSPI), CBCL Limited (CBCL) has developed this wetland monitoring plan for the planned lowering of water levels in Lake Vaughan, Gavels Lake, and Kings Lake (the Project Area) in Y...
AI summary Nova Scotia Power Inc. (NSPI) plans to lower water levels in Lake Vaughn, Gavels Lake, and Kings Lake for maintenance of the Tusket Hydro System dam. This may affect riparian wetlands, prompting a monitoring plan to assess changes in wetland plant species, soil moisture, and water levels. The area is located in the Tusket Islands Ecodistrict, known for its mild winters and diverse vegetation.
2.1 Wetlands in the Project Area Based on a desktop review of available mapping data, a number of wetlands are present within the Project Area, particularly along the lake shorelines. These wetlands are shown on Figure 1. Many of these app...
AI summary The Project Area contains several wetlands, especially along lake shorelines, which are depicted in Figure 1. These wetlands include shrub swamp and treed swamp components, which are typical in this region of Nova Scotia.
2.3 Wetlands of Special Significance Wetland of Special Significance (WSS) are defined in the Nova Scotia Wetland Conservation Policy (NSE, 2011). These are generally wetlands known to support SAR or their habitat, or are special wetland t...
AI summary Wetlands of Special Significance (WSS) are defined by the Nova Scotia Wetland Conservation Policy. While historical records of SAR species exist in the Project Area, they are from submerged locations, making it unlikely that these wetlands qualify as WSS. However, new SAR records may be discovered during the vegetation assessment for the Project.
3.2.1 Establishment of Wetland Photo Stations Wetland photo stations should be established throughout the Project area from a series of points which are easily accessible by road and which allow a broad view of portions of the Lakes and as...
AI summary The document suggests establishing wetland photo stations in the Project area at accessible points with a broad view of the lakes and wetlands. These stations should be photographed during every site visit to monitor changes and maintain records.
3.2.2 Baseline Wetland Edge Mapping In the summer of 2020, partial wetland boundaries will be determined at a number of monitoring locations throughout the Project Area. Note that the entire wetland will not be delineated, but instead a 50...
AI summary In the summer of 2020, partial wetland boundaries will be determined at multiple monitoring locations within the Project Area. A 50 m section along the wetland perimeter will be delineated using GPS, based on US Army Corps of Engineers protocols. LiDAR data and the 'Wet Areas Mapping' tool from NSE will be used for desktop assessments to supplement field work and assess boundary fluctuations post-construction.
3.2.3 Baseline Vegetation Data Collection Also in the summer of 2020, ecological baseline data will be collected from the same monitoring locations selected for partial wetland delineation. At each location, a number of 5 m x 5 m reference...
AI summary In the summer of 2020, baseline vegetation data will be collected from monitoring locations in wetlands. Reference plots will be established, and vegetation cover will be assessed. Data includes wetland type, species present, percent cover, and photographs. The assessment will occur in July before drawdown activities.
3.3 Construction Monitoring Vegetation and hydrological monitoring activities proposed to occur during the active phase of the Project (the Construction phase) are described in the following subsections.
AI summary The document discusses vegetation and hydrological monitoring activities proposed during the Construction phase of the Project. These activities are outlined in the following subsections.
CI 50518 CA IR-5 Attachment 7 Page 66 of 103 REDACTED (CONFIDENTIAL INFORMATION REMOVED) post-construction monitoring for each wetland being monitored. This plan would likely run from 2022 to 2026, assuming the Project is completed in 2021...
AI summary The text outlines a post-construction monitoring plan for wetlands, expected to run from 2022 to 2026, contingent on the project being completed in 2021. Specific monitoring details will depend on wetland impacts and future requirements from NSE.
2.0 Rare and Endangered Species - 2.1 Flora - 2.2 Fauna Map 2: Flora and Fauna
AI summary This section outlines the rare and endangered species in Nova Scotia, divided into flora and fauna, with a map illustrating their distribution.
1.0 PREFACE The Atlantic Canada Conservation Data Centre (AC CDC[; www.accdc.com)](www.accdc.com) is part of a network of NatureServe data centres and heritage programs serving 50 states in the U.S.A, 10 provinces and 1 territory in Canada...
AI summary The Atlantic Canada Conservation Data Centre (AC CDC) is a non-governmental organization that maintains conservation data for several Canadian provinces and provides customized reports on rare and endangered species upon request. It is supported by federal and provincial agencies and offers data on protected areas and ecological sites.
Plants, Lichens, Ranking Methods, All other Inquiries Sean Blaney, Senior Scientist, Executive Director Tel: (506) 364-2658 [[email protected]](mailto:[email protected]) Animals (Fauna) John Klymko, Zoologist Tel: (506) 364-2660 [joh...
AI summary The text provides contact information for various experts and departments related to environmental and biological inquiries in Atlantic Canada, including Nova Scotia, New Brunswick, and Prince Edward Island. It lists individuals and organizations responsible for handling questions on plants, lichens, animals, data management, billing, and provincial information on rare taxa, protected areas, and ecological concerns.
3.1 MANAGED AREAS The GIS scan identified 6 managed areas in the vicinity of the study area (Map 3 and attached file: \ ma\ .xls).
AI summary The GIS scan identified 6 managed areas near the study area, as shown in Map 3 and the attached file ma .xls.
4.1 FLORA Scientific Name Common Name COSEWIC SARA Prov Legal Prot Prov Rarity Rank Prov GS Rank # recs Distance (km) P Panicum dichotomiflorum ssp. puritanorum Spreading Panicgrass S1? 2 May Be At Risk 1 1.1 ± 1.0 P Proserpinaca intermedi...
AI summary The section '4.1 FLORA' presents a table listing various plant species with their scientific names, common names, and conservation status, including rankings and distances. The table includes details such as provincial legal protection, rarity rank, and the number of records.
Data Report 6639: Yarmouth, NS Page 6 of 25 Scientific Name Common Name COSEWIC SARA Prov Legal Prot Prov Rarity Rank Prov GS Rank # recs Distance (km) P Cuscuta cephalanthi Buttonbush Dodder S2? 5 Undetermined 2 6.3 ± 1.0 P Potamogeton pu...
AI summary This table lists various plant species found in Yarmouth, NS, including their scientific names, common names, conservation status, and other ecological data. The information includes details such as rarity rankings, number of records, and distances from specific locations.
The Department of Natural Resources in each Maritimes province considers a number of species "location sensitive". Concern about exploitation of location-sensitive species precludes inclusion of precise coordinates in this report. Those in...
AI summary The Department of Natural Resources in Maritime provinces identifies certain species as 'location sensitive', meaning precise coordinates are not included in reports to prevent exploitation. Species intersecting the study area are marked with 'YES'.
CI 50518 CA IR-5 Attachment 7 Page 81 of 103 REDACTED (CONFIDENTIAL INFORMATION REMOVED) # recs CITATION 14 Munro, Marian K. Nova Scotia Provincial Museum of Natural History Herbarium Database. Nova Scotia Provincial Museum of Natural Hist...
AI summary The document contains a list of citations with references to various ecological and natural history databases, including records on flora and rare species in Nova Scotia. These citations are from multiple researchers and institutions, such as the Nova Scotia Provincial Museum of Natural History and the Atlantic Canada Conservation Data Centre.
# recs CITATION - 1 Benjamin, L.K. 2012. NSDNR fieldwork & consultant reports 2008-2012. Nova Scotia Dept Natural Resources, 196 recs. - 1 Blaney, C.S.; Mazerolle, D.M. 2010. Fieldwork 2010. Atlantic Canada Conservation Data Centre. Sackvi...
AI summary The text lists various scientific reports and datasets related to biodiversity and natural resources in Nova Scotia, including bird surveys, lichen studies, and butterfly records, compiled by multiple organizations and researchers.
5.0 RARE SPECIES WITHIN 100 KM A 100 km buffer around the study area contains 34115 records of 150 vertebrate and 547 records of 50 invertebrate fauna; 21528 records of 219 vascular, 3597 records of 129 nonvascular flora (attached: \ ob100...
AI summary A 100 km buffer around the study area contains extensive biodiversity records, including rare and endangered species. The data includes 34,115 vertebrate and 547 invertebrate fauna records, as well as 21,528 vascular and 3,597 nonvascular flora records. The taxa listed are rare or endangered within the province, with details on the number of observations and distances from the study area.
Data Report 6639: Yarmouth, NS Page 10 of 25 Taxonomic Group Scientific Name Common Name COSEWIC SARA Prov Legal Prot Prov Rarity Rank Prov GS Rank # recs Distance (km) Prov A Passerina cyanea Indigo Bunting S1?B 5 Undetermined 26 18.7 ± 0...
AI summary This table lists various bird species observed in Yarmouth, NS, including their scientific and common names, conservation status, number of records, and distance from the location. The data includes information on provincial legal protection, rarity rank, and GS rank for each species.
Data Report 6639: Yarmouth, NS Page 11 of 25 Group A Scientific Name Common Name COSEWIC SARA Prov Legal Prot Prov Rarity Rank Prov GS Rank # recs Distance (km) Prov Rallus limicola Virginia Rail S2S3B 5 Undetermined 5 85.7 ± 7.0 NS Tringa...
AI summary The document presents a table of species observed in Yarmouth, NS, with details on their conservation status, rarity rankings, and distances recorded. The table includes various bird and fish species, along with their scientific and common names, and their status under provincial and federal legislation.
Data Report 6639: Yarmouth, NS Page 13 of 25 Taxonomic N Grimmia anodon Toothless Grimmia Moss S1? 3 Sensitive 2 77.9 ± 3.0 NS N Homomallium adnatum Adnate Hairy-gray Moss S1? 3 Sensitive 2 4.0 ± 1.0 NS N Meesia triquetra Three-ranked Cold...
AI summary This table lists various moss and lichen species found in Yarmouth, NS, along with their conservation status, sensitivity, and abundance. The data includes scientific names, common names, and conservation designations such as S1?, S1S2, and S1S3, indicating their rarity and risk of endangerment.
Data Report 6639: Yarmouth, NS Page 14 of 25 Group Scientific Name Common Name COSEWIC SARA Prov Legal Prot Prov Rarity Rank Prov GS Rank # recs Distance (km) Prov N Cetraria arenaria Lichen S2S3 5 Undetermined 1 41.6 ± 1.0 N Cladonia cocc...
AI summary This table lists data about lichen species in Yarmouth, NS, including their scientific and common names, conservation status, and rarity rankings. It includes details such as the number of records, distance from the site, and provincial legal protections.
Data Report 6639: Yarmouth, NS Page 15 of 25 Taxonomic Group Scientific Name Common Name COSEWIC SARA Prov Legal Prot Prov Rarity Rank Prov GS Rank # recs Distance (km) Prov Fuscopannaria sorediata a Lichen S3 4 21.0 ± 0.0 NS N N Ephebe la...
AI summary This table presents data on various species of lichens and mosses found in Yarmouth, NS, including their scientific names, common names, conservation status, and other relevant information. The table includes details such as rarity rankings and distances from specific locations.
Data Report 6639: Yarmouth, NS Page 16 of 25 Р COSEWIC SARA Prov Legal Prot Prov Rarity Rank Prov GS Rank # recs Distance (km) Prov 5 lunava buaabuaanbalua grass C4 O May Da At Dials 0 E40.00 NS Juncus brachycephalus Small-Head Rush S1 2 M...
AI summary The table lists various plant species with their conservation status, rarity rankings, and distances in Yarmouth, NS. It includes data from COSEWIC, SARA, and provincial legal protection categories.
Data Report 6639: Yarmouth, NS Page 17 of 25 Taxonomic Group Scientific Name Common Name COSEWIC SARA Prov Legal Prot Prov Rarity Rank Prov GS Rank # recs Distance (km) Prov P Lactuca hirsuta Hairy Lettuce S2 3 Sensitive 5 4.0 ± 0.0 NS P S...
AI summary This table lists various plant species found in Yarmouth, NS, including their taxonomic group, scientific and common names, conservation status, and other relevant details. It highlights several species with S2 status and varying levels of rarity and sensitivity.
Data Report 6639: Yarmouth, NS Page 18 of 25 Taxonomic Group Scientific Name Common Name COSEWIC SARA Prov Legal Prot Prov Rarity Rank Prov GS Rank # recs Distance (km) Prov P Carex foenea Fernald's Hay Sedge S3 4 Secure 2 44.0 ± 2.0 NS P...
AI summary The document presents a data report listing several plant species found in Yarmouth, NS, with details on their conservation status, rarity rankings, and distances from the study area. The report includes information on species such as Fernald's Hay Sedge and Olney's Bulrush, along with their provincial legal protections and rarity rankings.
Data Report 6639: Yarmouth, NS Page 19 of 25 Taxonomic Group Scientific Name Common Name COSEWIC SARA Prov Legal Prot Prov Rarity Rank Prov GS Rank # recs Distance (km) Prov P Juncus marginatus Grassleaf Rush S3 3 Sensitive 52 3.3 ± 0.0 NS...
AI summary The document presents a taxonomic report listing various plant species in Yarmouth, NS, including their scientific names, common names, conservation status, and other related data. The report includes details such as provincial rarity ranks, number of records, and distances from specific locations.
Data Report 6639: Yarmouth, NS Page 21 of 25 # recs CITATION 121 Neily, T.H. & Pepper, C.; Toms, B. 2018. Nova Scotia lichen database [as of 2018-03]. Mersey Tobeatic Research Institute. 119 McNeil, J.A. 2014. Blandings Turtle (Emydoidea b...
AI summary This data report lists various citations and records related to biodiversity and environmental research in Nova Scotia. It includes lichen, turtle sightings, dragonfly databases, moss records, and rare species records, compiled by different research institutes and government departments.
Data Report 6639: Yarmouth, NS Page 23 of 25 # recs CITATION 3 Lock, A.R., Brown, R.G.B. & Gerriets, S.H. 1994. Gazetteer of Marine Birds in Atlantic Canada. Canadian Wildlife Service, Atlantic Region, 137 pp. 3 Mills, Pamela. 2008. Clethr...
AI summary The document lists several citations related to biodiversity and natural resources in Nova Scotia, including studies and reports on marine birds, plant species, and wildlife observations.
Data Report 6639: Yarmouth, NS Page 24 of 25 # recs CITATION 2 Anon. 2017. Export of Maritimes Butterfly records. Global Biodiversity Information Facility (GBIF). 2 Austin-Smith, P. 2014. 2014 Common Nighthawk personal communication report...
AI summary This document is a data report listing citations of biodiversity records in Yarmouth, NS. It includes various field observations, surveys, and reports related to species and environmental data collected by multiple organizations and individuals.
Sub-national element rank definitions The following definitions refer to species and community ranks at sub-national (provincial) levels. Sub-national ranks are specific to a province. Therefore, a species that is common (S4) in New Brunsw...
AI summary The text defines sub-national element ranks for species and communities, emphasizing that these ranks are specific to provinces. For example, a species common in New Brunswick may be extremely rare in Prince Edward Island.
RE: Application # 2019-2638165-00 Sheet Harbour Hydro System – Ruth Falls Dam Refurbishment (Watercourse Alteration) With reference to your application please be advised that as a result of a fourth review prompted by Nova Scotia Power's (...
AI summary The application for the Sheet Harbour Hydro System – Ruth Falls Dam Refurbishment has been deemed incomplete due to incomplete information. The Department of Environment and Climate Change is requesting additional details on water management, contingency planning, and hydrologic modeling.
CI 50518 CA IR-5 Attachment 8 Page 2 of 3 REDACTED (CONFIDENTIAL INFORMATION REMOVED) - 3. Provide a site-specific wetland monitoring plan that addresses biodiversity elements at the Ruth Falls site. - 4. DFO continues to review the Fisher...
AI summary ECC has requested detailed information and plans related to the Ruth Falls project, including wetland monitoring, fish ladder performance, debris mitigation, discharge events, access road details, structural assessments, ice action, and spillway elevation. The information must be submitted by September 18, 2021, with potential rejection of the application if not provided within three months.
CI 50518 CA IR-5 Attachment 9 Page 1 of 55 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Nova Scotia Environment Application for Approval DIVISION 1 - WATER
AI summary This document is a redacted application for approval related to water management under Division 1 of the Nova Scotia Environment. It appears to be part of a regulatory proceeding, though specific details are confidential.
SECTION 3 - SITE/LOCATION OF PROPOSED ACTIVITIES Property Identification numbers (PID) are available at the Nova Scotia Land Registry. 1:50,000 Topo Maps (identifying Easting and Northing) are available at Nova Scotia Environment offices....
AI summary This section outlines the location and site identification for proposed activities, noting the availability of property identification numbers and topographic maps from relevant Nova Scotia government offices.
CI 50518 CA IR-5 Attachment 9 Page 4 of 55 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Nova Scotia Environment Application for Approval DIVISION 1 - WATER
AI summary The document is a page from a regulatory proceeding in Nova Scotia, specifically related to an application for approval under Division 1 - Water by Nova Scotia Environment. The content is partially redacted due to confidentiality.
SECTION 4 - ACTIVITY Proposed Activity - Please check (✔) all that apply. Activity Complete Sections Activity Complete Sections Boat Launch 4, 5A, 6A ,7 Bridge/Open Bottom Structure 4, 5A, 5C, 6A, 7 Culvert/Closed Bottom Structure 4, 5A, 5...
AI summary This section outlines proposed activities requiring regulatory approval, including various infrastructure and environmental projects such as dam construction, water withdrawal, and wetland alteration. It includes sections to complete, project dates, and a variance request.
CI 50518 CA IR-5 Attachment 9 Page 5 of 55 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Nova Scotia Environment Application for Approval DIVISION 1 - WATER
AI summary The document is a page from a regulatory proceeding in Nova Scotia, specifically related to an application for approval under the Division 1 - Water section of the Nova Scotia Environment.
CI 50518 CA IR-5 Attachment 9 Page 6 of 55 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Nova Scotia Environment Application for Approval DIVISION 1 - WATER 5E - Complete only for Water Withdrawal/Diversion Source of Withdraw groundwater sur...
AI summary This document is a form used by Nova Scotia Environment for applications related to water withdrawal, diversion, and wetland alteration. It includes sections for providing details on water usage, habitat improvements, and wetland types and sizes affected by the proposed activities.
CI 50518 CA IR-5 Attachment 9 Page 7 of 55 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Nova Scotia Environment Application for Approval DIVISION 1 - WATER Wetland Type - Compensation (check all that apply) Type Compensation Area (ha) Type...
AI summary The document is a wetland compensation application form submitted to Nova Scotia Environment under Division 1 - Water. It includes sections for specifying wetland types, compensation areas, compensation types, statuses, and values. The form is part of a larger regulatory proceeding and includes redacted confidential information.
2.3 Construction Schedule The Project is expected to take four months starting in early September and finishing in late December 2021 or potentially in late January 2022 should inclement weather delay the work schedule. No instream work is...
AI summary The Project is expected to take four months starting in early September 2021, finishing in late December 2021 or late January 2022, depending on weather. Instream work is not required for the 2021 scope, and construction will proceed once permits are received, including the removal of swallows' nests on the dam.
3.0 REGULATORY PERMITS/APPROVALS The following regulatory permits/approvals are required: - A Watercourse Alteration Approval in accordance with Section 5(A)(1)(c) of the Activities Designation Regulations of the Environment Act . - A Spec...
AI summary This section outlines the regulatory permits and approvals required for the project, including watercourse alteration, species at risk permits, navigation notices, and advice from the Department of Fisheries and Oceans.
CI 50518 CA IR-5 Attachment 9 Page 19 of 55 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Sheet Harbour Hydro System Ruth Falls Dam Sluice Gate Installation Project and Environmental Description
AI summary The document discusses the Sheet Harbour Hydro System Ruth Falls Dam Sluice Gate Installation Project, including its environmental description. A redacted image is included, likely depicting aspects of the project or its environmental impact.
4.1 Water Management The work area will be isolated using engineered steel plates installed in the upstream checks of the deep stoplog/sluice bays. Contractor employees will be able to conduct the gate installation from the downstream side...
AI summary The water management plan for the project involves maintaining specific water levels in the reservoir and Ruth Falls headpond during construction. Water levels will be managed using stoplog bays and monitored by NSPI hydro operating personnel. The plan ensures compliance with water approvals and maintains downstream flows, fish ladder, and salmon trap operations.
CI 50518 CA IR-5 Attachment 9 Page 21 of 55 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Sheet Harbour Hydro System Ruth Falls Dam Sluice Gate Installation Project and Environmental Description
AI summary The document discusses the Sheet Harbour Hydro System Ruth Falls Dam Sluice Gate Installation Project and includes an environmental description. A redacted image is referenced on page 21 of 55.
Table 1: Summary of potential impacts associated with the Project and mitigation measures to prevent or minimize impacts. prevent or minimize impacts. Effects on wetlands Wetlands identified in the vicinity of the project area will not be...
AI summary The project is not expected to impact nearby wetlands as they are sufficiently distant from the project site. The spillway, which feeds the closest wetland, will continue to operate normally during construction, minimizing any potential effects.
5.0 ARCHAEOLOGICAL CONSIDERATIONS An Archaeological Screening and Reconnaissance (ARIA) for the Project impact area was completed in 2017. The purpose of the ARIA was to assess the potential for archaeological resources in the project area...
AI summary An archaeological screening and shovel testing were conducted for a project area near a dam and embankment in Nova Scotia. Initial testing identified three areas with potential for archaeological resources, but subsequent testing found no significant resources, allowing development to proceed in two of the areas.
6.0 ABORIGINAL ENGAGEMENT NS Power initiated engagement regarding the Ruth Falls Main Dam project with the KMKNO in December 2017 during the One Window meeting to discuss 2018 hydro capital projects. NS Power continued to share relevant pr...
AI summary NS Power engaged with the KMKNO regarding the Ruth Falls Main Dam project starting in December 2017, providing updates throughout 2018 to 2020, with the project being deferred and rescheduled multiple times as design options were reviewed.
CI 50518 CA IR-5 Attachment 9 Page 28 of 55 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Photo 1: View of Ruth Falls Dam, facing north
AI summary The document includes a redacted page from a regulatory proceeding in Nova Scotia, featuring a photograph of Ruth Falls Dam facing north. The context suggests it may be related to infrastructure or environmental considerations, but specific details are confidential.
APPROVAL Province of Nova Scotia Environment Act, S.N.S. 1994-95, c.1 s.1 APPROVAL HOLDER: NOVA SCOTIA POWER INCORPORATED SITE PID: 40221673 APPROVAL NO: 2021-2840307-00 EXPIRY DATE: September 30, 2022 Pursuant to Part V of the Environment...
AI summary Nova Scotia Power Inc. has been granted approval under the Environment Act for a water-related activity involving a dam, with specific terms and conditions. The approval is valid until September 30, 2022, and oversight responsibilities have been delegated to Kevin G Garroway.
4. Covenant Conditions - a. The Approval does not authorize any activity that would: - i. prejudice any riparian rights of any owner or of any person lawfully in possession of or holding any lands abutting the watercourse; - ii. cause any...
AI summary The Approval does not permit activities that could harm riparian rights, damage adjacent land, or discharge surface water onto adjoining lands without the consent of the affected landowners.
CI 50518 CA IR-5 Attachment 10 Page 5 of 14 REDACTED (CONFIDENTIAL INFORMATION REMOVED) - b. The Approval Holder(s) is responsible to construct and maintain any culvert, bridge, dam, sluice, flume, conduit, or other approved structure buil...
AI summary The Approval Holder is responsible for constructing, maintaining, and rehabilitating structures on watercourses, ensuring they operate as intended and mitigating risks of failure. The Department is not liable for damages resulting from approved activities.
CI 50518 CA IR-5 Attachment 10 Page 7 of 14 REDACTED (CONFIDENTIAL INFORMATION REMOVED) - i. Fuel storage, refueling, and/or lubrication of equipment; - ii. Washing of machinery or equipment; and - iii. Storage of equipment, excavated/stoc...
AI summary The text outlines restrictions and requirements related to fuel storage, equipment maintenance, and blasting activities near watercourses, emphasizing the need for written authorization from the Minister for certain operations.
6. Construction - a. Under authority of this Approval, the watercourse alterations specified herein shall be conducted between June 1st and September 30th (inclusive) of the same calendar year unless otherwise stated in the site specific t...
AI summary This section outlines construction requirements for watercourse alterations, including timing, isolation from streamflow, stabilization of disturbed banks, material specifications, equipment standards, and post-construction cleanup.
COMPLETION OF THE APPROVED WORK A condition of this Approval requires that the Approval Holder notify Nova Scotia Environment that the work authorized is complete. Please enter the information on this sheet and return it to Nova Scotia Env...
AI summary The document outlines the requirement for the Approval Holder to notify Nova Scotia Environment upon completion of the approved work, providing contact details for submission.
2.2 Proposed Refurbishment Activities The proposed refurbishment activities are broken up into two phases below, Phase 1 - the installation of the sluiceway gates (already approved under Approval 2021-2840307-00) and Phase 2 – the dam cons...
AI summary The proposed refurbishment activities are divided into two phases: Phase 1 involves the installation of sluiceway gates, which has already been approved, and Phase 2 involves dam construction.
3.0 REGULATORY PERMITS/APPROVALS In addition to the Watercourse Alteration Approval required in accordance with Section 5(A)(1)(c) of the Activities Designation Regulations of the Environment Act , an authorization under Section 35(2)(b) o...
AI summary The document outlines the regulatory permits and approvals required for a project, including watercourse alteration approvals, fish ladder operations, water elevation requirements, and species at risk permits. It also mentions compliance with the Wildlife Act and Endangered Species Act, as well as Transport Canada's Navigation Protection Program.
Table 3: Instantaneous Flood Peaks for the East River Return period (years) Instantaneous (cfs) Flow Peaks 2 5,850 5 8,340 10 10,130 20 11,940 50 14,430 100 16,420 1000 24,220 The instantaneous flood peaks outlined in Table 4 take into con...
AI summary Table 3 presents instantaneous flood peaks for the East River at various return periods. The data considers inflows from the Grant River, which significantly contributes to the Ruth Falls Headpond, as noted in the 2008 flood study.
Wetland ID Number Wetland Type Wetland Description 1 Coniferous treed shore bog No 2 Coniferous treed shore bog No 3 Coniferous treed shore bog (two subtypes) Yes 4 Shore bog Yes 5 Shore bog No 6 Wetland complex composed of coniferous tree...
AI summary The table lists 21 wetlands found within the littoral zone of Ruth Falls Headpond, detailing their IDs, types, and descriptions. Some wetlands are identified as having subtypes, and a few are marked with 'Yes' or 'No' in the description column, though the significance of these markings is not explained.
CI 50518 CA IR-5 Attachment 11 Page 20 of 34 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Figure 2: Mapped wetlands on Ruth Falls Headpond (2007).
AI summary The document includes a figure showing mapped wetlands on Ruth Falls Headpond from 2007, likely related to environmental assessments or regulatory considerations.
5.0 ARCHAEOLOGICAL CONSIDERATIONS An Archaeological Screening and Reconnaissance (ARIA) for the Ruth Falls Headpond was completed in 2017. The purpose of the ARIA was to assess the potential for archaeological resources in the project area...
AI summary An archaeological screening and shovel testing were conducted in 2017 and 2018 for the Ruth Falls Headpond project. No significant archaeological resources were found, and further investigation in two areas is not required. During the drawdown, a qualified archaeologist will conduct reconnaissance to inspect the exposed shoreline for previously unrecorded resources.
Wetlands Wetland delineation was completed along the shores of the Ruth Falls Reservoir during the Vegetation Surveys at the Sheet Harbour Hydroelectric System completed by Jacques Whitford (JW) in 2007 (JW, 2007). As a result of this deli...
AI summary Wetland delineation was completed along the shores of the Ruth Falls Reservoir in 2007 by Jacques Whitford (JW) as part of the Vegetation Surveys at the Sheet Harbour Hydroelectric System. The survey identified 21 wetlands contiguous with the headpond.
Table 1. Wetlands identified at the Ruth Falls Reservoir (Jacques Whitford, 2007) Wetland ID Wetland Type 1 Treed shore bog 2 Treed shore bog 3 Treed shore bog 4 Shore bog 5 Shore bog 6 Treed shore bog/ floating bog 7 Shore bog 8 Shore bog...
AI summary The table lists 21 wetlands identified at the Ruth Falls Reservoir, categorized by type, including treed shore bogs and shore bogs. A section on fish sampling is mentioned but not detailed.
Table 2. Wetland Monitoring Parameters and Methods of Assessment Monitoring Parameter Methods of Assessment Depth to groundwater will be measured in monitoring wells. Standing water depth measurements will be noted within the existing wetl...
AI summary The document outlines methods for monitoring wetland parameters such as hydrology, vegetation, and soils, including the use of monitoring wells, vegetation transects, and soil assessments. Wetland Functional Assessments (WESP-AC) are also referenced as a specific assessment method.
Table 3: Wetland Fish Habitat Monitoring Parameters and Methods of Assessment Monitoring Parameter Transect Portion to be assessed Methods of Assessment Photos OL, LS, BS Photos will be taken of the substrate (where applicable), vegetation...
AI summary Table 3 outlines the monitoring parameters and methods for assessing wetland fish habitat, including photography, GPS tracking, vegetation and aquatic vegetation surveys, water quality measurements, and substrate analysis. These methods are applied across various transect portions (OL, LS, BS).
CI 50518 CA IR-5 Attachment 12 Page 7 of 10 February 4, 2022 Wetland and Wetland Fish Habitat Monitoring Plan, Ruth Falls Reservoir Ms. Kailey Osborne Nova Scotia Power Inc.
AI summary The document presents a Wetland and Wetland Fish Habitat Monitoring Plan for the Ruth Falls Reservoir, prepared by Ms. Kailey Osborne of Nova Scotia Power Inc.
Project # 21-7960 Monitoring Parameter Transect Portion to be assessed Methods of Assessment Water Level/Depth OL, LS The depth or level of water compared to the substrate should be measured using a measuring device. The use of a piezomete...
AI summary The document outlines the monitoring parameters and methods for assessing water level changes during and after a drawdown. Transect portions and methods, such as using piezometers, are specified. Assessment points may be adjusted or omitted due to safety concerns, with original points resumed once water levels return to pre-construction levels.
CI 50518 CA IR-5 Attachment 12 Page 8 of 10 February 4, 2022 Wetland and Wetland Fish Habitat Monitoring Plan, Ruth Falls Reservoir Ms. Kailey Osborne Nova Scotia Power Inc. Project # 21-7960
AI summary This document outlines a Wetland and Wetland Fish Habitat Monitoring Plan for the Ruth Falls Reservoir project, prepared by Ms. Kailey Osborne of Nova Scotia Power Inc. as part of Project #21-7960.
Table 5. Monitoring and Reporting Schedule for Wetland Fish Habitat Monitoring Monitoring Event Fish Habitat Transect Monitoring Desktop Review of Fish Data Reporting Submission to NSECC & DFO Pre-construction Baseline ✓ ✓ ✓ 1 week after d...
AI summary Table 5 outlines the schedule for monitoring and reporting on wetland fish habitat during various project phases, including pre-construction, during construction, and post-construction, with specific monitoring events and submission requirements to NSECC and DFO.
REFERENCES Jacques Whitford. 2007. Report – Vegetation Surveys at the Sheet Harbour Hydroelectric System. Project No. 1026751. NSLC Adopt a Stream and Nova Scotia Salmon Association. 2018. The Nova Scotia Fish Habitat Suitability Assessmen...
AI summary The document includes references to various reports and manuals related to fish habitat assessments and vegetation surveys conducted at the Sheet Harbour Hydroelectric System and other locations. It includes maps and project details related to wetlands and flowage reservoirs.
CI 50518 CA IR-5 Attachment 13 Page 1 of 2 REDACTED (CONFIDENTIAL INFORMATION REMOVED) 30 Damascus Road, Suite 115 Bedford, NS Canada B4A 0C1 902-424-7773 T 902-424-0597 F www.novascotia.ca Our File Number: 95100-30-BED-2019-2638165 April...
AI summary The Nova Scotia Department of Environment and Climate Change has deemed an application for the Sheet Harbour Hydro System – Ruth Falls Dam Refurbishment incomplete and requested additional information regarding cofferdams, water flow capacity, construction scheduling, and wetland monitoring methods.
b. Will the position of the bridge opening increase the risk of the Downstream Access Road/Cofferdam overtopping? As indicated NS Power's answer to question 1 a, the position of the bridge has been corrected within Appendix C – Proposed Wa...
AI summary NS Power has corrected the bridge position in Appendix C to ensure it is not skewed to the sluice bay opening, allowing water to flow straight and reducing the risk of overtopping the Downstream Access Road/Cofferdam.
CI 50518 CA IR-5 Attachment 14 Page 10 of 59 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Sheet Harbour Hydro System Ruth Falls Dam Sluice Gate Installation Project and Environmental Description An authorization in accordance with Transport...
AI summary The document discusses the Sheet Harbour Hydro System Ruth Falls Dam Sluice Gate Installation Project, highlighting the need for an authorization under Transport Canada's Navigation Protection Program for construction activities related to the project.
Table 4: Wetlands Found Within the Littoral Zone of Ruth Falls Headpond. Wetlands 3,5,6,15,17,19 are highlighted as they have been selected for Wetland Monitoring as described below. Wetland ID Number Wetland Type Wetland Description 1 Con...
AI summary The text describes the identification and monitoring of wetlands within the littoral zone of Ruth Falls Headpond. Wetlands 3, 5, 6, 15, 17, and 19 are selected for monitoring. No rare or endangered species were found during field surveys, though some species near the headpond are listed as secure or sensitive in Nova Scotia's General Status Rank.
CI 50518 CA IR-5 Attachment 14 Page 21 of 59 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Figure 2: Mapped wetlands on Ruth Falls Headpond (2007). Proposed Wetland Monitoring locations are highlighted in red (6 locations)
AI summary The text includes a figure showing mapped wetlands on Ruth Falls Headpond from 2007, with proposed wetland monitoring locations highlighted in red. The figure is part of a regulatory proceeding document and is accompanied by a redaction notice.
5.0 ARCHAEOLOGICAL CONSIDERATIONS An Archaeological Screening and Reconnaissance (ARIA) for the Ruth Falls Headpond was completed in 2017. The purpose of the ARIA was to assess the potential for archaeological resources in the project area...
AI summary An archaeological screening and shovel testing were conducted for the Ruth Falls Headpond project. No significant archaeological resources were found, allowing for continued development. Further archaeological reconnaissance will occur during the drawdown, with mitigation measures if resources are identified.
CI 50518 CA IR-5 Attachment 14 Page 33 of 59 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Photo 4: Downstream of Ruth Falls Dam Photo 5. Upstream of Ruth Falls Dam
AI summary The document contains redacted pages from a regulatory proceeding, including photos of areas upstream and downstream of Ruth Falls Dam. These images are likely related to environmental or infrastructure assessments, though specific details are confidential.
CI 50518 CA IR-5 Attachment 14 Page 34 of 59 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Sheet Harbour Hydro System Ruth Falls Dam Sluice Gate Installation Project and Environmental Description APPENDIX C – PROPOSED WATER MANAGEMENT STRUCT...
AI summary This document provides an overview of the Sheet Harbour Hydro System Ruth Falls Dam Sluice Gate Installation Project, including proposed water management structures. It includes appendices and visual materials related to the project's environmental description.
Ruth Falls Drainage Area and Bridge Sizing Skye 7 Consulting Limited (S7) was engaged by Elliot Excavators (EE) to provide a sizing calculation based on Nova Scotia Environment (NSE) sizing criteria. Below is a summary of calculations for...
AI summary Skye 7 Consulting Limited was engaged by Elliot Excavators to calculate bridge sizing for a proposed crossing in Ruth Falls. The calculation assumes a worst-case scenario and shows that a 38.5m span with 4m water depth is required. Elliot Excavators proposes using upstream reservoirs to install a smaller, removable bridge.
CI 50518 CA IR-5 Attachment 15 Page 1 of 15 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Nova Scotia Environment Application for Approval DIVISION 1 - WATER
AI summary This document is a redacted page from a regulatory proceeding related to the Nova Scotia Environment's application for approval under Division 1 - Water. Key details are confidential and not disclosed in the provided text.
SECTION 3 - SITE/LOCATION OF PROPOSED ACTIVITIES Property Identification numbers (PID) are available at the Nova Scotia Land Registry. 1:50,000 Topo Maps (identifying Easting and Northing) are available at Nova Scotia Environment offices.
AI summary This section outlines where the proposed activities will take place, noting that property identification numbers and topographic maps can be obtained from the Nova Scotia Land Registry and Nova Scotia Environment offices, respectively.
If more than one Site, click Add Site or Copy this section and attach for each Site. Ruth Falls Headpond Watercourse Name East River Tributary To East River Watershed Name (if applicable) If Applying for a Wetland Alteration, please specif...
AI summary The document provides details about a site located on the East River in Halifax, including property information, coordinates, and access directions. It is part of a regulatory proceeding related to watercourse and wetland alteration.
CI 50518 CA IR-5 Attachment 15 Page 4 of 15 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Nova Scotia Environment Application for Approval DIVISION 1 - WATER
AI summary The document is an application for approval from Nova Scotia Environment under Division 1 - Water. It is part of a regulatory proceeding, though the specific content is redacted due to confidentiality.
CI 50518 CA IR-5 Attachment 15 Page 5 of 15 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Nova Scotia Environment Application for Approval DIVISION 1 - WATER
AI summary The document is an application for approval by Nova Scotia Environment under Division 1 - Water. The content is partially redacted and contains confidential information.
SECTION 5 - ACTIVITY DETAILS Complete Section 5 to the best of your knowledge. Please provide measurements in the metric units indicated. 5A – Complete for all applicable Watercourse Alteration Applications. Type of Alteration New Construc...
AI summary Section 5 details various activities related to watercourse alterations, including new construction, removal, replacement, and expansion. It requires specific measurements and descriptions for different types of structures such as culverts, bridges, and storage facilities. The section includes fields for watercourse characteristics, crossing types, and fish passage assessments.
CI 50518 CA IR-5 Attachment 15 Page 6 of 15 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Nova Scotia Environment Application for Approval DIVISION 1 - WATER 5E - Complete only for Water Withdrawal/Diversion Source of Withdraw groundwater su...
AI summary The document contains a partially redacted application form for a water withdrawal and alteration permit under the jurisdiction of Nova Scotia Environment. It includes sections for detailing water sources, withdrawal rates, usage types, and wetland alterations, but key information has been removed.
CI 50518 CA IR-5 Attachment 15 Page 7 of 15 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Nova Scotia Environment Application for Approval DIVISION 1 - WATER Wetland Type - Compensation (check all that apply) Type Compensation Area (ha) Type...
AI summary The document is a form submitted by Nova Scotia Environment for the approval of a wetland compensation plan. It includes sections for different types of wetlands, compensation methods, status, and areas related to the compensation plan.
CI 50518 CA IR-5 Attachment 15 Page 8 of 15 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Nova Scotia Environment Application for Approval DIVISION 1 - WATER
AI summary The document is a redacted page from an application by Nova Scotia Environment for approval under Division 1 - Water. Key details are not disclosed due to confidentiality.
CI 50518 CA IR-5 Attachment 15 Page 9 of 15 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Nova Scotia Environment Application for Approval DIVISION 1 - WATER
AI summary This document is a redacted page from an application by Nova Scotia Environment for approval under Division 1 - Water. The content has been removed due to confidentiality.
CI 50518 CA IR-5 Attachment 15 Page 10 of 15 REDACTED (CONFIDENTIAL INFORMATION REMOVED) PO Box 910 ● Halifax, Nova Scotia ● Canada ● B3J 2W5 July 7, 2022 Melissa Douglas Environmental Inspector Nova Scotia Environment and Climate Change 3...
AI summary Nova Scotia Power Inc. is requesting an amendment to its Watercourse Alteration Approval for Phase 1 of the Ruth Falls Main Dam Refurbishment Project, including updates to the timeline and scope, and an extension of the approval expiry date due to unexpected construction delays.
REFURBISHMENT ACTIVITIES The proposed refurbishment activities are broken up into two phases below, Phase 1 - the installation of the control building (approved under Approval 2021-2840307-00 and related to this amendment) and Phase 2 – ma...
AI summary The proposed refurbishment activities are divided into two phases: Phase 1 involves the installation of the control building, approved under Approval 2021-2840307-00, and Phase 2 involves main dam construction, under Application 2019-2638165-00. This provides clarification on the project scope.
PHASE 1 : CONTROL BUILDING The rubber dam controls will be housed in a new control building, which is being installed on the eastern end of the dam on the downstream side, see Figure 1 for location. The rubber dam control building will be...
AI summary The control building for the rubber dam will be constructed on the eastern end of the dam, requiring modifications such as concrete filling, pier construction, and deck extension. The work will take 4-5 months and includes erosion control measures approved by NSECC. All activities will occur above the ordinary high water mark.
WATER MANAGEMNT Work associated with the construction of the new control building can be completed without lowering the water level in the reservoir. The work area beneath the base of the control building has been isolated using sandbags a...
AI summary The construction of the new control building will be carried out without lowering the reservoir water level, using sandbags and liners to create a dry work area. Water levels will be maintained at 109.4' until November 30th as required by water approval 2008-062826-01, and all downstream flows, fishladder operations, and salmon trap functions will be maintained. NS Power hydro operating personnel will manage high precipitation events and inflows in accordance with regular procedures.
EROSION AND SEDIMENTATION CONTROL The contractor has developed an Erosion and Sedimentation Control (ESC) Plan which has been submitted and accepted by NSECC. The ESC plan outlines the site-specific erosion and sedimentation controls for P...
AI summary The contractor has developed and submitted an Erosion and Sedimentation Control (ESC) Plan to NSECC, which has been accepted. The plan includes site-specific controls for Phase 1 and a site diagram describing their placement.
APPROVAL Province of Nova Scotia Environment Act, S.N.S. 1994-95, c.1 s.1 APPROVAL HOLDER: NOVA SCOTIA POWER INCORPORATED SITE PID: 40221673 APPROVAL NO: 2021-2840307-01 EXPIRY DATE: October 31, 2022 Pursuant to Part V of the Environment A...
AI summary This document grants approval to Nova Scotia Power Incorporated under the Environment Act for a water-related activity involving a dam. The approval is subject to terms and conditions, with administrative responsibilities delegated to Kevin G Garroway.
Nova Scotia Department of Environment and Climate Change Approval Holder: NOVA SCOTIA POWER INCORPORATED Project: Ruth Falls Headpond - PID 40221673
AI summary The Nova Scotia Department of Environment and Climate Change is overseeing a project related to the Ruth Falls Headpond, with Nova Scotia Power Incorporated as the approval holder. The project is identified by PID 40221673.
4. Covenant Conditions - a. The Approval does not authorize any activity that would: - i. prejudice any riparian rights of any owner or of any person lawfully in possession of or holding any lands abutting the watercourse; - ii. cause any...
AI summary The Approval does not permit activities that could harm riparian rights, damage adjacent land, or discharge surface water onto adjoining lands without the consent of the affected landowners.
CI 50518 CA IR-5 Attachment 16 Page 5 of 9 REDACTED (CONFIDENTIAL INFORMATION REMOVED) - b. The Approval Holder(s) is responsible to construct and maintain any culvert, bridge, dam, sluice, flume, conduit, or other approved structure built...
AI summary The Approval Holder is responsible for constructing, maintaining, and rehabilitating structures on watercourses, ensuring they operate as designed and mitigate risks of failure. The Department is not liable for damages resulting from approved activities, including water quality or quantity issues.
CI 50518 CA IR-5 Attachment 16 Page 7 of 9 REDACTED (CONFIDENTIAL INFORMATION REMOVED) - i. Fuel storage, refueling, and/or lubrication of equipment; - ii. Washing of machinery or equipment; and - iii. Storage of equipment, excavated/stock...
AI summary The text outlines restrictions related to equipment maintenance and blasting activities near watercourses, requiring authorization from the Minister for blasting operations.
6. Construction - a. Under authority of this Approval, the watercourse alterations specified herein shall be conducted between June 1st and September 30th (inclusive) of the same calendar year unless otherwise stated in the site specific t...
AI summary This section outlines construction requirements for watercourse alterations, including timing, isolation from streamflow, stabilization of disturbed banks, material specifications, equipment standards, and post-construction cleanup.
CI 50518 CA IR-5 Attachment 16 Page 8 of 9 REDACTED (CONFIDENTIAL INFORMATION REMOVED) 2021-2840307-00 (Phase 1) Amendment Request - Project Overview Description", dated July 7, 2022. Any deviation from the submitted plans will require the...
AI summary The document outlines conditions for a watercourse alteration project, including requirements for regulatory approvals, construction timelines, sediment and erosion control measures, and contingency planning for significant rainfall events.
ECC Contact: Melissa Douglas APPROVAL NUMBER: 2021-2840307-01 NAME OF APPROVAL HOLDER: NOVA SCOTIA POWER INCORPORATED WORK AUTHORIZED: Dam DATE WORK WAS COMPLETED: NAME OF CONTRACTOR: COMMENTS: Signature Date CI 50518 CA IR-5 Attachment 17...
AI summary The document contains a redacted approval form related to a dam project by Nova Scotia Power Incorporated. The form includes fields for approval number, work authorized, completion date, and contractor information, but most fields are left blank or redacted.
RE: Application # 2019-2638165-00 With reference to your application please be advised that your application has been deemed incomplete. As a result, Nova Scotia Department of Environment and Climate Change (ECC) is requesting the followin...
AI summary The application #2019-2638165-00 has been deemed incomplete by the Nova Scotia Department of Environment and Climate Change (ECC), requiring additional information regarding the Ruth Falls Phase 2 project, including an updated construction schedule and hydraulic modelling results. The information must be submitted by February 9, 2023, or the application may be rejected.
Main Dam Refurbishment Application 2019-2638165-00 NS Power Initial Application Submission December 20, 2019 NSECC Incomplete Letter Received January 7, 2020 NS Power Updated Submission February 27, 2020 NSECC Incomplete Letter Received Ma...
AI summary The document outlines the timeline of the Main Dam Refurbishment Application, including initial submissions and incomplete letters from NSECC, indicating ongoing regulatory review and required revisions.
Vertical Lift Gate / Control Building Approval 2021-2840307-00 NS Power Initial Submission July 12, 2021 NSECC Approval Received October 22, 2021 NS Power Amendment Submission July 11, 2022 NSECC Amended Approval Received September 5, 2022...
AI summary This document updates the project and environmental description for NS Power's application for watercourse alteration approval (2019-2638165-00). It addresses NSECC's incomplete letter from December 2022, including updates to the construction schedule and hydraulic modelling. The document supersedes previous iterations and assumes that all prior incomplete letters are no longer relevant.
CI 50518 CA IR-5 Attachment 19 Page 11 of 423 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Sheet Harbour Hydro System Ruth Falls Dam Refurbishment Project and Environmental Description management plan water will be free flowing through the...
AI summary The Ruth Falls Dam Refurbishment Project involves a management plan ensuring free-flowing water through the sloplog/sluiceway bay. A Species at Risk permit will be obtained under the Wildlife Act and Endangered Species Act, and an authorization from Transport Canada's Navigation Protection Program is required for construction activities.
4.3 Water Management Planning Once the drawdown is complete, all stoplogs from the ogee spillway sections and sluiceway sectionwill be fully removed toprepare for refurbishment activities. Asshownin drawing 210-03 and 300-03 of the project...
AI summary The document outlines the water management planning during the refurbishment of the spillway and sluiceway sections. It describes the removal of stoplogs, demolition of concrete in bay 8, and the use of sluiceway bays to manage water levels during construction. Specific elevations and construction timelines are detailed.
Table 3: Mean Annual Flood for the East River Return period (years) Maximum Mean Flow (cfs) 2 3,427 5 4,468 10 5,183 50 6,613 100 7,149 The maximum mean flows outlined in Table 3 take into consideration inflows from the Grant River, which...
AI summary Table 3 presents the mean annual flood flows for the East River, considering inflows from the Grant River. The water management plan accounts for a 1:10 return period flood (5,183 cfs), with gates and spillway capable of handling up to 6,405 cfs at 104 ft elevation, just below the threshold for a 1:50 return event.
Downstream Louver System The assessment of downstream passage included looking at the existing infrastructure to evaluate the effectiveness of a louvre system at facilitating downstream passage for species that would be required to move do...
AI summary The assessment of the downstream louver system evaluated its effectiveness in facilitating downstream passage for aquatic species and determined if upgrades or repairs are needed, in line with the US Fish and Wildlife Association's Fish Passage Engineering Design Criteria.
5.5 Wetland and Rare Species As part of the 2007 relicensing of the Sheet Harbour Hydro System, a qualified wetland consultant was contracted to complete a wetland and littoral zone vegetation survey on Ruth Falls Headpond. Twenty-one (21)...
AI summary As part of the 2007 relicensing of the Sheet Harbour Hydro System, a wetland survey identified 21 wetlands near the Ruth Falls Headpond. Only one additional wetland was found in current GIS data, leading NS Power to assume 22 wetlands exist. Most are shore bogs, which are not tolerant of deep flooding, suggesting the headpond fluctuates like natural lakes. No rare vascular plant species were found.
CI 50518 CA IR-5 Attachment 19 Page 28 of 423 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Figure 3: NS Department of Lands and Forestry Wetland Inventory Mapping and ACCDC Search Points (2017)
AI summary The document includes a figure showing the NS Department of Lands and Forestry Wetland Inventory Mapping and ACCDC search points from 2017. This information is part of a regulatory proceeding and is marked as confidential.
6.0 ARCHAEOLOGICAL CONSIDERATIONS An Archaeological Screening and Reconnaissance (ARIA) for the Ruth Falls Headpond was completed in 2017. The purpose of the ARIA was to assess the potential for archaeological resources in the project area...
AI summary An archaeological screening and shovel testing were conducted for the Ruth Falls Headpond project. No significant archaeological resources were found, allowing development to proceed. Further reconnaissance will occur during the drawdown, with mitigation if resources are found.
ISSUED FOR CONSTRUCTION REFERENCE DESCRIPTION A X,X,X,X,X X X,X,X X,X X,X,X SEAL DEPARTMENTAL APPROVALS SCALE Nova Scotia FIELD. BOLTS ASTM A325 (THREAD EXCLUDED FROM SHEAR PLANE) COMPLETE WITH A563 HEX NUT AND HELICAL SPRING WASHER ANSI B...
AI summary The document provides construction specifications and requirements for a project in Nova Scotia, including hardware standards, coordination with NSPI for power line relocations, material stockpile locations, and earthwork procedures. It also outlines design loads, concrete specifications, and dewatering plans.
CI 50518 CA IR-5 Attachment 19 Page 70 of 423 REDACTED (CONFIDENTIAL INFORMATION REMOVED) December 14, 2022 Ms. Kailey Osborne Nova Scotia Power Inc. 1223 Lower Water St. Halifax, NS B3J 3S8 Dear Ms. Osborne, Re: Wetland and Wetland Fish H...
AI summary A letter dated December 14, 2022, from Nova Scotia Power Inc. to Ms. Kailey Osborne regarding a Wetland and Wetland Fish Habitat Monitoring Plan for the Ruth Falls Reservoir in Sheet Harbour, NS.
Wetlands Initial wetland delineation was undertaken along the shores of the Reservoir during the Vegetation Surveys at the Sheet Harbour Hydroelectric System completed by Jacques Whitford (JW) in 2007 (JW, 2007). As a result of this deline...
AI summary Initial wetland delineation was conducted along the shores of the Reservoir during the Vegetation Surveys at the Sheet Harbour Hydroelectric System, completed by Jacques Whitford in 2007. This survey identified 21 wetlands contiguous with the headpond.
Table 1: Wetlands identified at the Ruth Falls Reservoir (Jacques Whitford, 2007) Wetland ID Wetland Type 1 Treed shore bog 2 Treed shore bog 3 Treed shore bog 4 Shore bog 5 Shore bog 6 Treed shore bog/floating bog 7 Shore bog 8 Shore bog...
AI summary Table 1 lists 21 wetlands identified at the Ruth Falls Reservoir, categorized by type. The table is from a 2007 report by Jacques Whitford. The section on fish sampling suggests further environmental assessment activities.
WETLAND MONITORING The wetlands, as identified by JW (2007), provided the initial wetland assessment information; Strum has relied on this previously collected data to select and complete a monitoring assessment on six of these identified...
AI summary The document outlines wetland monitoring activities based on prior assessments by JW (2007). Six wetlands were selected for monitoring based on their distribution, representation of different wetland types, and hydrological characteristics. Monitoring activities include baseline assessments and a pre-construction assessment.
CI 50518 CA IR-5 Attachment 19 Page 76 of 423 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Wetland and Wetland Fish Habitat Monitoring Plan, Ruth Falls Reservoir December 14, 2022 Ms. Kailey Osborne Nova Scotia Power Inc. Project # 21-7960
AI summary The document outlines a Wetland and Wetland Fish Habitat Monitoring Plan for the Ruth Falls Reservoir project, submitted by Nova Scotia Power Inc. on December 14, 2022, as part of the CI 50518 CA IR-5 proceeding.
Table 3: Wetland Fish Habitat Monitoring Parameters and Methods of Assessment Monitoring Parameter Transect Portion to be assessed Methods of Assessment Photos OL, LS, BS Photos will be taken of the substrate (where applicable), vegetation...
AI summary Table 3 outlines the parameters and methods for monitoring wetland fish habitat, including photography, GPS mapping, vegetation assessment, water quality testing, and water level measurements. Adjustments to assessment points are made during drawdown and post-construction phases to account for changing conditions and safety concerns.
CI 50518 CA IR-5 Attachment 19 Page 77 of 423 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Wetland and Wetland Fish Habitat Monitoring Plan, Ruth Falls Reservoir December 14, 2022 Ms. Kailey Osborne Nova Scotia Power Inc. Project # 21-7960
AI summary This document outlines a Wetland and Wetland Fish Habitat Monitoring Plan for the Ruth Falls Reservoir project, submitted by Nova Scotia Power Inc. on December 14, 2022, as part of the CI 50518 CA IR-5 proceeding.
CI 50518 CA IR-5 Attachment 19 Page 80 of 423 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Wetland and Wetland Fish Habitat Monitoring Plan, Ruth Falls Reservoir December 14, 2022 Ms. Kailey Osborne Nova Scotia Power Inc. Project # 21-7960
AI summary This document outlines a Wetland and Wetland Fish Habitat Monitoring Plan for the Ruth Falls Reservoir project, submitted by Nova Scotia Power Inc. on December 14, 2022, as part of the CI 50518 CA IR-5 proceeding.
CI 50518 CA IR-5 Attachment 19 Page 81 of 423 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Wetland and Wetland Fish Habitat Monitoring Plan, Ruth Falls Reservoir December 14, 2022 Ms. Kailey Osborne Nova Scotia Power Inc. Project # 21-7960
AI summary This document outlines a Wetland and Wetland Fish Habitat Monitoring Plan for the Ruth Falls Reservoir project, submitted by Nova Scotia Power Inc. on December 14, 2022, as part of the CI 50518 CA IR-5 proceeding.
CI 50518 CA IR-5 Attachment 19 Page 82 of 423 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Wetland and Wetland Fish Habitat Monitoring Plan, Ruth Falls Reservoir December 14, 2022 Ms. Kailey Osborne Nova Scotia Power Inc. Project # 21-7960
AI summary This document outlines a wetland and wetland fish habitat monitoring plan for the Ruth Falls Reservoir project, submitted by Nova Scotia Power Inc. on December 14, 2022, as part of the CI 50518 CA IR-5 proceeding.
CI 50518 CA IR-5 Attachment 19 Page 94 of 423 REDACTED (CONFIDENTIAL INFORMATION REMOVED) 3 # Indicators Condition Choices Data Definitions/Explanations 4 OF1 Province Mark the province in which the AA is located by changing the 0 in the c...
AI summary The text provides a table with indicators related to wetland assessment, including province selection and ponded area measurements within 1 km of an area of assessment (AA). The province of Nova Scotia is selected, and the ponded area is categorized based on size.
Google Earth Pro : https://www.google.com/earth/download/gep/agree.html Provincial Landscape Viewer : https://nsgi.novascotia.ca/plv/ For most wetlands, completing this office data form will require 1-2 hours. For a list of functions to wh...
AI summary The text provides links to tools for geographic data analysis and describes a form for wetland data collection, including functions and codes related to ecological and habitat functions. It outlines the time required to complete the form and refers to an appendix for detailed model descriptions.
16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 The area of wetlands and surface water ponded during most of the growing season that is both (1) in or adjacent to the AA and (2) within 1 km is: <0.01 hectare (about 10 m x 10 m). 0 0.01 - 0.1...
AI summary The text discusses the measurement of wetlands and surface water areas adjacent to aquatic areas, including definitions and methodologies for assessing their size and impact. It references various departments and entities involved in the assessment process.
CI 50518 CA IR-5 Attachment 19 Page 132 of 423 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Cover Page: Basic Description of Assessment WESP-AC version 2 Site Name: Ruth Falls Wetland 6 Investigator Name: Darcy Kavanagh & Angus Doane Date o...
AI summary This document is a field assessment form for a wetland site named Ruth Falls Wetland 6, conducted on July 4, 2022, by investigators Darcy Kavanagh and Angus Doane. The assessment includes details about the site location, size, and the completion of the survey, with a map-based delineation available and full coverage of the area assessed.
Google Earth Pro : https://www.google.com/earth/download/gep/agree.html Provincial Landscape Viewer : https://nsgi.novascotia.ca/plv/ For most wetlands, completing this office data form will require 1-2 hours. For a list of functions to wh...
AI summary The text provides links to tools for geographic data analysis and describes a form for wetland data collection, including functions and codes related to ecological and habitat functions. It outlines the time required to complete the form and refers to an appendix for detailed model descriptions.
CI 50518 CA IR-5 Attachment 19 Page 135 of 423 2 OF5 Distance to Large The minimum distance from the edge of the AA to the edge of the closest vegetated land (but excluding row crops, lawn, conifer To measure distance, use Google Earth Pro...
AI summary This table outlines criteria for measuring the distance from an Area of Assessment (AA) to a large vegetated tract, excluding certain land types. It specifies conditions for distances less than 50 meters and between 50-500 meters, with considerations for separation by paved roads, open water, and other features.
Wetland ID: Ruth Falls WL15 Date: July 4, 2022 Observer: Darcy Kavanagh & Angus Doane Latitude & Longitude (decimal degrees): 44.981144 & -62.483722°
AI summary This document provides details about a wetland site identified as Ruth Falls WL15, including its location, date of observation, and observers involved. It contains geographic coordinates and is part of a regulatory proceeding related to environmental assessments.
CI 50518 CA IR-5 Attachment 19 Page 172 of 423 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Cover Page: Basic Description of Assessment WESP-AC version 2 Site Name: Ruth Falls Wetland 17 Investigator Name: Darcy Kavanagh & Angus Doane Date...
AI summary This document is a field assessment form for a wetland site named Ruth Falls Wetland 17, completed by Darcy Kavanagh and Angus Doane on July 5, 2022. It includes information about the location, size, and assessment details, as well as the use of the WESP-AC version 2 protocol for wetland evaluation in Nova Scotia.
Netland 6 Wetland 6 HYDROLOGICAL I NDICATORS Baseline (July 2022) Y/N Baseline (September 2022) Y/N Notes HYDROLOGICAL OBSERVATIONS (POST ALT ERATION) Surface water er N Y Surface satu ıration Y Y 7 , water table (<30cm) N N Water staine N...
AI summary The document presents a table with hydrological indicators and vegetation data for Wetland 6, including baseline measurements from July and September 2022, notes on surface water saturation, drainage patterns, and changes in plant species percentages.
Wetland 15 ourex trisperma Three Seeded Seage 20 Myrica gale Sweetgale 60 25 Myrica gale Sweetgale 30 40 Chamaedaphne calyculata Leatherleaf 60 Chamaedaphne calyculata Leatherleaf 5 25 01 Viburnum nudum Wild Raisin 25 Ledum groenlandicum L...
AI summary The text presents a table with vegetation data for different wetland areas, including species names, percentages, and notes. It lists various plants such as Myrica gale, Chamaedaphne calyculata, and Viburnum nudum, along with their distribution percentages across two baseline periods (July and September 2022).
Wetland 17 Vetland 17 HYDROLOGICAL INDI CATORS Baseline (July 2022) Y/N Baseline (September 2022) Y/N Notes HYDROLOGIC CAL OBSERVATIONS (POST A LTERATION) Surface water N Y Surface satura ation Y Y ater table (<30cm) N N Vater stained N N...
AI summary This document provides a detailed table of hydrological indicators and vegetation observations for Wetland 17, comparing baseline data from July and September 2022. It includes metrics such as surface water saturation, water table depth, and vegetation composition across multiple plots.
Background This report addresses the request made by Nova Scotia Power (NSP) by email on the 8 th February, 2022, and following discussions. An excerpt is presented below to present the requested scope of work: We have determined a need fo...
AI summary Nova Scotia Power requested 3D hydraulic modeling for the Ruth Falls dam to assess downstream conditions after refurbishment, including the installation of vertical lift gates and a new rubber dam, with a focus on fish ladder entrance conditions.
Introduction Nova Scotia Power (NSP) has requested that CBCL Limited (CBCL) conduct 3D Computational Fluid Dynamics (CFD) hydraulic modelling (3D modelling) for the postrefurbished downstream conditions and proposed changes at the Ruth Fal...
AI summary Nova Scotia Power has requested CBCL Limited to conduct 3D Computational Fluid Dynamics (CFD) hydraulic modelling for the Ruth Falls Dam refurbishment and proposed changes. The main refurbishments and changes are outlined in Table 1 and Appendix A: Figure 1, and were evaluated by Thaumas Environmental Consultants Ltd.
Table 4: Estimated % ability of the selected fish species to pass through the river section modeled to the fishway entrance based on the best routes found in the Evaluated Model Scenarios Scenario Gaspereau Brook Trout Grilse Salmon Multi...
AI summary Table 4 presents the estimated percentage ability of various fish species to pass through a river section modeled to the fishway entrance under different scenarios. The data shows varying success rates depending on the scenario and fish species, with some scenarios showing significantly lower passage rates for certain species.
Ruth Falls Dam – River Fish Passage Modeling THAUMAS ENVIRONMENTAL CONSULTANTS FEBUARY 10, 2023
AI summary The document is a report by THAUMAS ENVIRONMENTAL CONSULTANTS dated February 10, 2023, discussing fish passage modeling at Ruth Falls Dam. It involves the use of Computational Fluid Dynamics (CFD) and OpenFOAM software for analysis.
multi-sea-year Salmon Multi-Sea-Year salmon will have 50% passage to the dam. Over the first sill fish must pass through water with velocities up to 2.5 m/sec for 20 m in the model, but with unknown distance from the downstream resting are...
AI summary The document discusses the passage of multi-sea-year salmon through a dam, noting that fish must navigate water with high velocities over two sills. The velocities are deemed too high for passage, with specific flow rates cited for different sections of the dam.
CI 50518 CA IR-5 Attachment 19 Page 382 of 423 REDACTED (CONFIDENTIAL INFORMATION REMOVED) To: Kailey Osborne, BMgmt, EP Environmental Scientist Nova Scotia Power January 31, 2023 Re: Ruth Falls Fish Passage Assessment
AI summary This document is a letter dated January 31, 2023, addressed to Kailey Osborne at Nova Scotia Power regarding a fish passage assessment at Ruth Falls. The content is redacted and labeled as confidential.
Pool and Wier fishway design background Pool-and-weir fishways are very sensitive to water level fluctuations at both the upstream and downstream ends. In these fishways, low tailwater levels will result in a high drop out the entrance not...
AI summary Pool-and-weir fishways are sensitive to water level fluctuations, which can affect fish passage by altering velocities, turbulence, and water depths. Proper water levels are essential to maintain effective fish attraction flows and resting areas.
The Ruth Falls upper concrete fishway At Ruth Falls the water elevation in the pool below the notch is designed to be at the level of the notch crest when there is a 1ft deep flow in the notch. This is the proper operational water depth fo...
AI summary The Ruth Falls upper concrete fishway is designed to maintain a 1ft water depth in the notch to ensure proper fish passage. Adjustments to the notch width may be made if monitoring indicates insufficient resting areas for weaker swimming species, though current modeling and observations suggest the design is effective as is.
1. Introduction Nova Scotia Power Inc (NSPI) requested a condition assessment of the louver system which forms a part of the fish diversion structure at the upstream end (entrance) of the power canal at Ruth Falls Dam. NSPI also requested...
AI summary Nova Scotia Power Inc (NSPI) requested a condition assessment and concept design for improving the louver system at Ruth Falls Dam to enhance its effectiveness in bypassing silver stage American Eels.
CI 50518 CA IR-5 Attachment 19 Page 408 of 423 REDACTED (CONFIDENTIAL INFORMATION REMOVED) To: Kailey Osborne, BMgmt, EP Environmental Scientist Nova Scotia Power January 31, 2023 Re: Concept Design Report - Upstream Eel Passage at the Pro...
AI summary This document is a concept design report related to upstream eel passage at the proposed refurbished dam at Ruth Falls, addressed to Kailey Osborne from Nova Scotia Power.
1. Introduction NSPI requested a concept design be developed for upstream eel passage at the proposed refurbished dam at Ruth Falls. This is an update of the November 2020 report.
AI summary NSPI has requested a concept design for upstream eel passage at the proposed refurbished dam at Ruth Falls, updating the November 2020 report.
References Haro, A. 2013. Proceedings of a Workshop on American Eel Passage Technologies. Atlantic States Marine Fisheries Commission, Gloucester, Massachusetts Jessop, B. M. 2003. The run size and biological characteristics of American ee...
AI summary The references section lists several academic and technical publications related to American eel passage technologies, fish pass design, and the biological characteristics of eels, focusing on improving upstream migration and conservation efforts.
CI 50518 CA IR-5 Attachment 19 Page 418 of 423 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Ruth Falls Main Dam Refurbishment Project Application #2019-2638165-00 Communication Plan Revision 1
AI summary This document is a communication plan revision for the Ruth Falls Main Dam Refurbishment Project Application #2019-2638165-00. It is part of a regulatory proceeding and includes a redacted page from a larger submission.
Purpose Nova Scotia Power (NS Power) is committed to proactively communicating and engaging with community stakeholders, the Mi'kmaq, regulators and the public on the Ruth Falls Main Dam Refurbishment Project (Project). This document is a...
AI summary NS Power is committed to communicating and engaging with stakeholders, the Mi'kmaq, and regulators regarding the Ruth Falls Main Dam Refurbishment Project. This document outlines the communication plan for 2024 construction activities as part of NSE Application #2019-2638165-00.
drawdown and associated in place. A project email has construction activities been provided for reach out at including expected anytime. timeframes and duration. [email protected] Mi'kmaq Community Contact Website Method Frequenc...
AI summary The document contains information regarding the Ruth Falls Main Dam drawdown and associated construction activities, including expected timeframes and duration. Contact details for the Mi'kmaq community and Millbrook First Nation are provided for communication purposes.
Main Dam Refurbishment Application 2019-2638165-00 NS Power Initial Application Submission December 20, 2019 NSECC Incomplete Letter Received January 7, 2020 NS Power Updated Submission February 27, 2020 NSECC Incomplete Letter Received Ma...
AI summary The document outlines the timeline of submissions and responses related to the Main Dam Refurbishment Application by NS Power, with multiple incomplete letters from NSECC prompting further updates from NS Power.
Vertical Lift Gate / Control Building Approval 2021-2840307-00 NS Power Initial Submission July 12, 2021 NSECC Approval Received October 22, 2021 NS Power Amendment Submission July 11, 2022 NSECC Amended Approval Received September 5, 2022...
AI summary This document provides an updated project description for NS Power's application for watercourse alteration approval, addressing NSECC's incomplete letter from May 2023. It supersedes previous iterations and outlines responses to specific questions raised by NSECC.
2.1 Existing Project Area Ruth Falls Headpond is located immediately downstream of the Malay Falls Headpond. The reservoir is contained by a 190 m (620') long earthfill embankment and a 150 m (490') long concrete spillway structure. The sp...
AI summary The Ruth Falls Headpond is described with details on its structure, dimensions, and water management. It includes information about the dam, spillway, fish migration systems, and water level fluctuations. The site will be surveyed before construction to ensure accuracy, as noted by NSECC.
3.0 REGULATORY PERMITS/APPROVALS In addition to the Watercourse Alteration Approval required in accordance with Section 5(A)(1)(c) of the Activities Designation Regulations of the Environment Act , an authorization under Section 35(2)(b) o...
AI summary The document outlines the regulatory permits and approvals required for a project in Nova Scotia, including watercourse alteration, fishery authorization, water management plan adjustments, Species at Risk permits, and navigation protection authorizations.
Time (day) Beginning Elevation (ft) Bays 1-15 Bays 16-30 Outer Sluice Middle Sluice Opening (ft) Total Discharge (cfs) Velocity through each bay (fps) Downstream Velocity (fps) 0 109.2 1 0 0 0 159 2.1 6.6 0.5 109.1 1 1 1 1 281 2.0 8.5 1 10...
AI summary The document outlines a plan for managing water flow during a drawdown process, including maintaining a 35 cfs flow for fish passage and sediment control. NS Power will monitor water quality and perform fish rescues during the process. Once the headpond reaches 91 ft, the canal will be dewatered using a drain valve.
Upstream Fish Passage Results of the 3D hydraulic modeling determined that improvement to the lower non-technical section of the existing fishway should be made to improve passage for species migrating upstream to complete their lifecycle....
AI summary The document discusses proposed improvements to a fishway to enhance upstream fish passage, particularly for species like gaspereau. These improvements include replacing existing weirs with new concrete structures, recontouring rocks, and smoothing the riverbed to improve water flow and fish movement.
5.5 Wetland and Rare Species As part of the 2007 relicensing of the Sheet Harbour Hydro System, a qualified wetland consultant was contracted to complete a wetland and littoral zone vegetation survey on Ruth Falls Headpond. Twenty-one (21)...
AI summary As part of the 2007 relicensing of the Sheet Harbour Hydro System, a wetland and littoral zone vegetation survey identified 21 wetlands near the Ruth Falls Headpond. Only one additional wetland was found when comparing the 2007 data with current provincial GIS data, leading NS Power to assume 22 possible wetlands. Most are shore bogs, and no rare or endangered vascular plant species were found.
6.0 ARCHAEOLOGICAL CONSIDERATIONS An Archaeological Screening and Reconnaissance (ARIA) for the Ruth Falls Headpond was completed in 2017. The purpose of the ARIA was to assess the potential for archaeological resources in the project area...
AI summary An archaeological screening and shovel testing were conducted for the Ruth Falls Headpond project. No significant archaeological resources were found, allowing development to proceed. Further archaeological reconnaissance will occur during the drawdown, with mitigation plans if resources are identified.
CI 50518 CA IR-5 Attachment 21 Page 70 of 465 REDACTED (CONFIDENTIAL INFORMATION REMOVED) December 14, 2022 Ms. Kailey Osborne Nova Scotia Power Inc. 1223 Lower Water St. Halifax, NS B3J 3S8 Dear Ms. Osborne, Re: Wetland and Wetland Fish H...
AI summary This letter from Nova Scotia Power Inc. to Ms. Kailey Osborne relates to the submission of a Wetland and Wetland Fish Habitat Monitoring Plan for the Ruth Falls Reservoir in Sheet Harbour, NS.
Wetlands Initial wetland delineation was undertaken along the shores of the Reservoir during the Vegetation Surveys at the Sheet Harbour Hydroelectric System completed by Jacques Whitford (JW) in 2007 (JW, 2007). As a result of this deline...
AI summary Initial wetland delineation was conducted along the shores of the Reservoir during a 2007 vegetation survey by Jacques Whitford, identifying 21 wetlands contiguous with the headpond.
CI 50518 CA IR-5 Attachment 21 Page 71 of 465 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Wetland and Wetland Fish Habitat Monitoring Plan, Ruth Falls Reservoir December 14, 2022 Ms. Kailey Osborne Nova Scotia Power Inc. Project # 21-7960
AI summary This document outlines a wetland and wetland fish habitat monitoring plan for the Ruth Falls Reservoir project, submitted by Nova Scotia Power Inc. on December 14, 2022.
Table 2: Wetland Monitoring Parameters and Methods of Assessment Monitoring Parameter Methods of Assessment Depth to groundwater will be measured in monitoring wells. Standing water depth measurements will be noted within the existing wetl...
AI summary This table outlines the parameters and methods for monitoring wetlands, including hydrology, vegetation, and soils. It details how groundwater depth, standing water, and vegetation cover will be measured and assessed over time. The Wetland Functional Assessments (WESP-AC) are also mentioned as a specific method for addressing non-native species.
CI 50518 CA IR-5 Attachment 21 Page 74 of 465 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Wetland and Wetland Fish Habitat Monitoring Plan, Ruth Falls Reservoir December 14, 2022 Ms. Kailey Osborne Nova Scotia Power Inc. Project # 21-7960...
AI summary The document outlines a wetland and wetland fish habitat monitoring plan for the Ruth Falls Reservoir, prepared by Nova Scotia Power Inc. on December 14, 2022. It includes information on migratory periods, species observed, and habitat requirements for identified species.
Desktop Fish Habitat Suitability Review Prior to the commencement of monitoring, a desktop fish habitat suitability review was completed to assess the quality of fish habitat provided by both the Ruth Falls Reservoir and the wetlands conti...
AI summary A desktop fish habitat suitability review was conducted prior to monitoring to assess fish habitat quality in the Ruth Falls Reservoir and contiguous wetlands. The review identified six wetlands most likely to provide suitable fish habitat for monitoring purposes.
CI 50518 CA IR-5 Attachment 21 Page 75 of 465 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Wetland and Wetland Fish Habitat Monitoring Plan, Ruth Falls Reservoir December 14, 2022 Ms. Kailey Osborne Nova Scotia Power Inc. Project # 21-7960...
AI summary This document outlines a wetland and wetland fish habitat monitoring plan for the Ruth Falls Reservoir project, prepared by Nova Scotia Power Inc. It includes a commitment to conduct further surveys during drawdown and post-construction to assess and compare conditions to baseline data.
CI 50518 CA IR-5 Attachment 21 Page 76 of 465 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Wetland and Wetland Fish Habitat Monitoring Plan, Ruth Falls Reservoir December 14, 2022 Ms. Kailey Osborne Nova Scotia Power Inc. Project # 21-7960
AI summary This document outlines a wetland and wetland fish habitat monitoring plan for the Ruth Falls Reservoir project, submitted by Nova Scotia Power Inc. on December 14, 2022, as part of the CI 50518 CA IR-5 proceeding.
CI 50518 CA IR-5 Attachment 21 Page 77 of 465 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Wetland and Wetland Fish Habitat Monitoring Plan, Ruth Falls Reservoir December 14, 2022 Ms. Kailey Osborne Nova Scotia Power Inc. Project # 21-7960
AI summary The document outlines a wetland and wetland fish habitat monitoring plan for the Ruth Falls Reservoir project, submitted by Nova Scotia Power Inc. on December 14, 2022, under project number 21-7960.
Table 4: Criteria to determine habitat Habitat Type Location(s) Definition Direct Open Lake, Lakeshore "…Water frequented by fish…on which fish depend on…to (possible) carry out their life processes including spawning grounds and nursery,...
AI summary Table 4 outlines criteria for determining fish habitat types, including direct, indirect, and not fish habitat. Definitions are based on the Federal Fisheries Act, with specific focus on areas accessible to fish and their life processes.
Baseline Monitoring Results Initial baseline monitoring was conducted on July 4-5, and September 6, 2022. All wetlands were accessed via boat over the Reservoir, and each wetland was accessed successfully, as locations provided by the JW (...
AI summary Baseline monitoring of wetlands was conducted in 2022 using WESP-AC protocols. Wetlands were accessed via boat, and initial assessments confirmed wetland types and fish habitat characteristics. Monitoring wells and vegetation plots were installed, and results are detailed in attachments. Some wetlands, like WL17, had unique characteristics affecting fish habitat monitoring.
Table 5: Wetland Fish Habitat - Baseline Observations Wetland Open Lake Lakeshore Backshore Wetland 3 Permanently flooded with abundant Some overhanging Spruce dominated forest large woody debris and moderate vegetation. Shoreline is quite...
AI summary Table 5 presents baseline observations for wetland fish habitats, describing conditions in Wetlands 3, 5, 6, and 15. Each wetland is analyzed for characteristics such as vegetation, substrate, and fish presence, with notes on direct and indirect fish habitats, as well as potential impacts from forestry activities.
PROPOSED SCHEDULE AND REPORTING Annual post-construction monitoring reports will be submitted to Nova Scotia Environment and Climate Change (NSECC) for the five years of post-construction monitoring. Vegetation results shall be provided in...
AI summary The document outlines the proposed schedule and reporting requirements for post-construction monitoring, including submission of annual reports to Nova Scotia Environment and Climate Change and the use of cumulative tables for vegetation results. Tables 6 and 7 detail the monitoring schedules for the Wetland Monitoring Program and Wetland Fish Habitat Monitoring Program, respectively.
CI 50518 CA IR-5 Attachment 21 Page 80 of 465 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Wetland and Wetland Fish Habitat Monitoring Plan, Ruth Falls Reservoir December 14, 2022 Ms. Kailey Osborne Nova Scotia Power Inc. Project # 21-7960
AI summary This document outlines a wetland and wetland fish habitat monitoring plan for the Ruth Falls Reservoir project, submitted by Nova Scotia Power Inc. on December 14, 2022. The plan is part of the project's environmental assessment and compliance with regulatory requirements.
Table6: Monitoring and Reporting Schedule for Wetland Monitoring Monitoring Event Wetland and Wetland Fish Habitat Monitoring WESP-AC Reporting Submission to NSECC Pre-construction Baseline ✓ ✓ During Construction ✓ Memo Post-construction...
AI summary Table 6 outlines a monitoring and reporting schedule for wetland monitoring, including pre-construction, during construction, and post-construction phases. Data collected during post-construction monitoring will be compared with baseline data to evaluate vegetation, hydrology, and soils, with long-term impacts assessed after Year 5.
CI 50518 CA IR-5 Attachment 21 Page 81 of 465 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Wetland and Wetland Fish Habitat Monitoring Plan, Ruth Falls Reservoir December 14, 2022 Ms. Kailey Osborne Nova Scotia Power Inc. Project # 21-7960
AI summary This document outlines a wetland and wetland fish habitat monitoring plan for the Ruth Falls Reservoir project, submitted by Nova Scotia Power Inc. on December 14, 2022, as part of a regulatory proceeding.
CLOSURE Thank you for the opportunity to develop this Wetland and Wetland Fish Habitat Monitoring Plan. If you have any questions, please contact us. Thank you, [[email protected]](mailto:[email protected]) [[email protected]](mailto:sduncan...
AI summary The document is a closure message from an environmental monitoring plan related to wetlands and wetland fish habitats. It includes contact information for Angus Doane and Natasha Myers from Strum and a thank you for the opportunity to develop the plan.
CI 50518 CA IR-5 Attachment 21 Page 82 of 465 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Wetland and Wetland Fish Habitat Monitoring Plan, Ruth Falls Reservoir December 14, 2022 Ms. Kailey Osborne Nova Scotia Power Inc. Project # 21-7960
AI summary This document outlines a wetland and wetland fish habitat monitoring plan for the Ruth Falls Reservoir project, submitted by Nova Scotia Power Inc. on December 14, 2022. The plan is part of the environmental assessment process for the project.
REDACTED (CONFIDENTIAL INFORMATION REMOVED) CI 50518 CA IR-5 Attachment 21 Page 91 of 465 ATTACHMENT B WESP-AC FORMS CI 50518 CA IR-5 Attachment 21 Page 92 of 465 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Cover Page: Basic Description of...
AI summary The text describes a wetland assessment conducted at Ruth Falls Wetland 3 on July 5, 2022, by investigators Darcy Kavanagh and Angus Doane. The assessment was carried out using the WESP-AC version 2 form, and the site was fully visited. The assessment area was 1.35 hectares, and the investigators intentionally surveyed for rare plants and animals.
2 STR= Stressors. 3 # Indicators Condition Choices Data Definitions/Explanations 4 OF1 Province Mark the province in which the AA is located by changing the 0 in the column next to it to a "1". Mark only one. This determines to which provi...
AI summary The document outlines a set of indicators used to evaluate stressors related to wetland areas. It includes details on how to mark the province, measure ponded areas within 1 km, and assess the size of the largest nearby vegetated tract or corridor.
CI 50518 CA IR-5 Attachment 21 Page 114 of 465 REDACTED (CONFIDENTIAL INFORMATION REMOVED) A B C D E OF5 Distance to Large The minimum distance from the edge of the AA to the edge of the closest vegetated land (but excluding row crops, law...
AI summary This table outlines criteria for measuring the distance from an Area of Concern (AA) to a large vegetated tract, with specific thresholds and conditions for separation by various features, and associated values. The 375-ha criterion is referenced from the Fundy Model Forest Project.
Google Earth Pro : https://www.google.com/earth/download/gep/agree.html Provincial Landscape Viewer : https://nsgi.novascotia.ca/plv/ For most wetlands, completing this office data form will require 1-2 hours. For a list of functions to wh...
AI summary The text provides links to tools for geographic data analysis and describes a form for wetland data collection, including functions and codes related to ecological and habitat functions. It outlines the time required to complete the form and refers to an appendix for detailed model descriptions.
Wetland ID: Ruth Falls WL15 Date: July 4, 2022 Observer: Darcy Kavanagh & Angus Doane Latitude & Longitude (decimal degrees): 44.981144 & -62.483722°
AI summary This document provides details about a wetland site identified as Ruth Falls WL15, including its location, date of observation, and observers involved. It contains geographic coordinates and is part of a regulatory proceeding related to environmental assessments.
Scores will appear below after data are entered in worksheets OF, F, and S. See Manual for definitions and descriptions of how scores were computed. Wetland Functions or Other Attributes: Function Score (Normalised) Function Rating Benefit...
AI summary The document presents a scoring system for assessing wetland functions and benefits, including normalized and raw scores for various attributes such as water storage, sediment retention, and habitat support. It also includes grouped function ratings and overall FBP scores, with notes on how scores are interpreted.
Background This report addresses the request made by Nova Scotia Power (NSP) by email on the 8 th February, 2022, and following discussions. An excerpt is presented below to present the requested scope of work: We have determined a need fo...
AI summary Nova Scotia Power (NSP) requested 3D hydraulic modeling for the Ruth Falls dam to assess the impact of new structures on downstream fish ladder entrance conditions. The assessment will consider historic and proposed gate operations, flow measurements, maintenance schedules, and site geometry.
Introduction Nova Scotia Power (NSP) has requested that CBCL Limited (CBCL) conduct 3D Computational Fluid Dynamics (CFD) hydraulic modelling (3D modelling) for the postrefurbished downstream conditions and proposed changes at the Ruth Fal...
AI summary Nova Scotia Power has requested CBCL Limited to conduct 3D Computational Fluid Dynamics (CFD) hydraulic modelling for the Ruth Falls Dam refurbishment and proposed changes. The main refurbishments and changes are outlined in Table 1 and Appendix A: Figure 1, and were evaluated by Thaumas Environmental Consultants Ltd.
American Eels American eels live in both the estuary and the freshwater. Access to the freshwater is needed as most of the females develop in freshwater habitats. Some of the eels will move in and out of the estuary several times during th...
AI summary The document discusses the habitat and movement patterns of American eels, including their need for access to freshwater for female development. It describes the design of eel tiles with different peg sizes to accommodate eels of various lengths and the downstream passage requirements of yellow, silver stage eels, and lamprey.
multi-sea-year Salmon Multi-Sea-Year salmon will have 50% passage to the dam. Over the first sill fish must pass through water with velocities up to 2.5 m/sec for 20 m in the model, but with unknown distance from the downstream resting are...
AI summary The document discusses the passage of multi-sea-year salmon through a dam, noting that 50% passage is allowed. Fish must navigate water with high velocities over two sills, which may limit their ability to rest and pass successfully. Velocities are reported as too high for passage in multiple scenarios.
CI 50518 CA IR-5 Attachment 21 Page 374 of 465 REDACTED (CONFIDENTIAL INFORMATION REMOVED) 33 The fishway /louvre flow of 35 cfs is not sufficient to provide fish passage in the river below the dam. This has not been an issue due to the le...
AI summary The fishway/louvre flow of 35 cfs is insufficient for fish passage below the dam. Current leakage from stoplogs provides additional flow, but the new dam will not have this leakage, necessitating a continuous 65 cfs flow through gates.
Pool and Wier fishway design background Pool-and-weir fishways are very sensitive to water level fluctuations at both the upstream and downstream ends. In these fishways, low tailwater levels will result in a high drop out the entrance not...
AI summary Pool-and-weir fishways are sensitive to water level fluctuations, which can affect fish passage by altering velocities, turbulence, and water depths. Proper water levels are essential to maintain effective fish attraction flows and resting areas.
CI 50518 CA IR-5 Attachment 21 Page 384 of 465 REDACTED (CONFIDENTIAL INFORMATION REMOVED) body length of the fish requiring passage. So, the 1ft depth is the minimum for multi-sea year salmon. It is very important that the fishways operat...
AI summary The text discusses the design of fishways at NSPI sites, emphasizing their original purpose for salmon migration and the adjustments made for other species like gaspereau and smelt. It highlights the importance of flow, drop between pools, and pool dimensions in accommodating different species' swimming abilities and resting needs.
The Ruth Falls upper concrete fishway At Ruth Falls the water elevation in the pool below the notch is designed to be at the level of the notch crest when there is a 1ft deep flow in the notch. This is the proper operational water depth fo...
AI summary The Ruth Falls upper concrete fishway is designed to maintain a 1ft water depth in the notch to ensure proper fish passage. Adjustments to the notch width may be made if monitoring indicates insufficient resting areas for weaker swimming species, though current modeling and observations suggest the design is effective as is.
1. Introduction Nova Scotia Power Inc (NSPI) requested a condition assessment of the louver system which forms a part of the fish diversion structure at the upstream end (entrance) of the power canal at Ruth Falls Dam. NSPI also requested...
AI summary Nova Scotia Power Inc (NSPI) requested a condition assessment and concept design for improving the louver system at Ruth Falls Dam to enhance its effectiveness in bypassing silver stage American Eels.
1. Introduction NSPI requested a concept design be developed for upstream eel passage at the proposed refurbished dam at Ruth Falls. This is an update of the November 2020 report.
AI summary NSPI has requested a concept design for upstream eel passage at the proposed refurbished dam at Ruth Falls, updating the November 2020 report.
References Haro, A. 2013. Proceedings of a Workshop on American Eel Passage Technologies. Atlantic States Marine Fisheries Commission, Gloucester, Massachusetts Jessop, B. M. 2003. The run size and biological characteristics of American ee...
AI summary The references section lists several academic and technical publications related to American eel passage technologies, fish pass design, and the biological characteristics of eels, focusing on improving upstream migration and conservation efforts.
Purpose Revision 1 Communication Plan Nova Scotia Power (NS Power) is committed to proactively communicating and engaging with community stakeholders, the Mi'kmaq, regulators and the public on the Ruth Falls Main Dam Refurbishment Project...
AI summary Nova Scotia Power (NS Power) is developing a communication plan for the Ruth Falls Main Dam Refurbishment Project, focusing on engagement with the Provincial government, Mi'kmaq communities, and stakeholders during 2022 construction activities. The plan is part of NSE Application # 2019-2638165-00.
2.0 Rare and Endangered Species - 2.1 Flora - 2.2 Fauna Map 2: Flora and Fauna
AI summary This section outlines the rare and endangered species in Nova Scotia, divided into flora and fauna, with a map illustrating their distribution.
3.0 Special Areas - 3.1 Managed Areas - 3.2 Significant Areas - Map 3: Special Areas
AI summary This section outlines the categorization of special areas, including managed and significant areas, and references a map that illustrates these special areas.
5.0 Rare Species within 100 km 5.1 Source Bibliography Map 1 . A 100 km buffer around the study area
AI summary This section discusses the identification of rare species within a 100 km buffer around the study area, referencing a map and a source bibliography.
4.0 RARE SPECIES LISTS Rare and/or endangered taxa (excluding "location-sensitive" species, section 4.3) within the study area listed in order of concern, beginning with legally listed taxa, with the number of observations per taxon and th...
AI summary This section presents a list of rare and endangered species within the study area, categorized by type and including details such as the number of observations and distance from the study area centroid. The data is sourced from specific attached files.
5.0 RARE SPECIES WITHIN 100 KM A 100 km buffer around the study area contains 36085 records of 156 vertebrate and 1362 records of 64 invertebrate fauna; 4288 records of 234 vascular and 2565 records of 122 nonvascular flora (attached: \ ob...
AI summary A 100 km buffer around the study area contains extensive biodiversity records, including rare and endangered species. The data includes observations of vertebrates, invertebrates, vascular and nonvascular flora, with details on their proximity to the study site.
Data Report 7716: Ruth Falls Watershed, NS Page 8 of 22 Group Scientific Name Common Name COSEWIC SARA Prov Legal Prot Prov Rarity Rank # recs Distance (km) Prov A Calidris minutilla Least Sandpiper S1B,S4M 484 26.5 ± 0.0 NS A Anas acuta N...
AI summary This table lists various species found in the Ruth Falls Watershed, including their scientific names, common names, conservation status, number of records, and distance from the site. The data includes species such as the Least Sandpiper, Northern Pintail, and Warbling Vireo, with their respective conservation rankings in Nova Scotia.
Data Report 7716: Ruth Falls Watershed, NS Page 9 of 22 Taxonomic Group Scientific Name Common Name COSEWIC SARA Prov Legal Prot Prov Rarity Rank # recs Distance (km) Prov A Numenius phaeopus NS hudsonicus Whimbrel S2S3M 102 33.3 ± 0.0 A P...
AI summary The document presents a table listing various species in the Ruth Falls Watershed, including their taxonomic group, scientific and common names, conservation status, provincial legal protection, rarity rank, number of records, distance from the site, and province. It focuses on biodiversity and conservation data.
Data Report 7716: Ruth Falls Watershed, NS Page 13 of 22 N N Fuscopannaria ahlneri # recs Prov Corrugated Shingles Lichen S3 100 10.0 ± 0.0 NS Scytinium lichenoides Tattered Jellyskin Lichen S3 29 23.2 ± 1.0 NS N Leptogium milligranum Stre...
AI summary This page from Data Report 7716 lists various species of lichen and moss found in the Ruth Falls Watershed, including their scientific names, common names, conservation status, number of records, and provincial distribution in Nova Scotia.
Page 15 of 22 Group Scientific Name Common Name COSEWIC SARA Prov Legal Prot Prov Rarity Rank # recs Distance (km) Prov Р Lilium canadense Canada Lily S2 98 $38.5 \pm 0.0$ NS Р Cypripedium parviflorum var. pubescens Yellow Lady's-slipper S...
AI summary The table lists various plant species in Nova Scotia with their conservation status, rarity rankings, and other details. It includes scientific and common names, COSEWIC and SARA statuses, provincial legal protections, and other metrics.
Page 17 of 22 Group Scientific Name Common Name COSEWIC SARA Prov Legal Prot Prov Rarity Rank # recs Distance (km) Prov P Carex tribuloides Blunt Broom Sedge S3 11 $48.5 \pm 5.0$ NS P Carex tuckermanii Tuckerman's Sedge S3 1 $75.6 \pm 0.0$...
AI summary The table lists various plant species in Nova Scotia with their scientific and common names, conservation status, and other details. It includes information on their rarity, number of records, and distances. Most species are listed with a rarity rank of S3, indicating they are vulnerable.
2 Standley, L.A. 2002. Carex haydenii in Nova Scotia. , Pers. comm. to C.S. Blaney. 4 recs.
AI summary This entry discusses the presence of Carex haydenii in Nova Scotia, citing a 2002 study by Standley, L.A. and personal communication with C.S. Blaney, which includes four records of the species.
Data Report 7716: Ruth Falls Watershed, NS Page 22 of 22 # recs CITATION 1 Docherty, Joanne. 2022. Phone call to John Klymko about Danaus plexippus observation in Nova Scotia. Personal communication. 1 Doucet, D.A. 2009. Census of Globally...
AI summary This document presents a list of citations related to biodiversity observations and records in the Ruth Falls Watershed, Nova Scotia, including personal communications, environmental assessments, and field work reports.
The following fields of data may be included (and may or may not be populated) in occurrence records. Text fields are 255 char max. (and may truncate text). TAXONOMY Field Type Definition MCODE TXT 8 character 'Museum Code' (1 to 4 = genus...
AI summary The text outlines data fields and their definitions for occurrence records, including taxonomy, location, and precision details. It includes examples of data fields such as TAXONOMY, LOCATION, and precision measurements.
The following fields of data may be included (and may or may not be populated) for Managed and Biologically Significant Areas. IDENTITY AND DESCRIPTION Field Type Definition msaGIS INT Unique GIS feature identifier msaCode TXT Unique ident...
AI summary The text outlines data fields for Managed and Biologically Significant Areas, including GIS identifiers and classifications. It also references a redacted attachment from a regulatory proceeding.
msaName TXT MSA feature name msaNameFr TXT MSA feature name (French) description TXT Description of the MSA feature notes TXT Additional notes about the MSA feature JURISDICTION / OWNERSHIP Field Type Definition localJuris TXT Mandated age...
AI summary The text describes a table and definitions related to MSA (Maybe Spatial Area) features, including jurisdiction, ownership, classification, and protected area categories. It includes details on legislation, ownership types, and protected area classifications, including IUCN categories and conservation measures.
Wildlife Management Area Wildlife Park Wildlife Refuge Wildlife Reserve Wildlife Sanctuary Other Education Area Experimental Area Federal Corrections Facility Fossil Site International Biological Program Memorial Site Other Managed Area RA...
AI summary The text presents a table with various categories of protected areas and spatial attributes related to these areas. It includes details about location, biome, map coordinates, and source attributes for each feature. The document also includes a redacted section from a regulatory proceeding.
Nova Scotia Department of Environment and Climate Change Approval Holder: NOVA SCOTIA POWER INCORPORATED Project: Ruth Fall Headpond - PID 40221673
AI summary The document outlines a project by Nova Scotia Power Incorporated, specifically the Ruth Fall Headpond with PID 40221673, under the approval of the Nova Scotia Department of Environment and Climate Change.
2. Scope - a. This Approval (the "Approval") relates to the Approval Holder(s) and their application and all documentation submitted to the Department prior to the issuance of this approval for the Dam situated at or near Ruth Fall Headpon...
AI summary The Approval relates to the Approval Holder(s) and their application for the Dam situated at or near Ruth Fall Headpond - PID 40221673. The Approval Holder(s) must carry out the designated activity in accordance with this Approval and reference documents.
4. Covenant Conditions - a. The Approval does not authorize any activity that would: - i. prejudice any riparian rights of any owner or of any person lawfully in possession of or holding any lands abutting the watercourse; - ii. cause any...
AI summary The covenant conditions outline restrictions and responsibilities for the Approval Holder, including the prohibition of activities that prejudice riparian rights, the requirement to maintain structures on watercourses, and the obligation to rehabilitate sites under certain conditions. The Department is not liable for damages from approved activities.
6. Construction - a. Under authority of this Approval, the watercourse alterations specified herein shall be conducted between June 1st and September 30th (inclusive) of the same calendar year unless otherwise stated in the site specific t...
AI summary The construction guidelines outline specific timing, conditions, and requirements for watercourse alterations, emphasizing activities during dry periods, stabilization of disturbed banks, and material specifications for construction to mitigate environmental impact.
COMPLETION OF THE APPROVED WORK A condition of this Approval requires that the Approval Holder notify Nova Scotia Department of Environment and Climate Change that the work authorized is complete. Please enter the information on this sheet...
AI summary The document outlines a condition requiring the Approval Holder to notify the Nova Scotia Department of Environment and Climate Change upon completion of the approved work, including contact details for submission.
From: [NWAR-ESS](mailto:[email protected]) To: [Thomas, Nadine](mailto:[email protected]) Subject: Application for approval submitted Date: Friday, April 30, 2021 7:24:58 AM \ \ This is an external email from: 010d01792...
AI summary An application for approval under the Navigation Protection Program (NPP) has been submitted by Nadine Thomas of Nova Scotia Power. The application relates to a project located in the Halifax Regional Municipality, Nova Scotia, and the NPP office will contact the applicant for next steps.
CI 50518 - HYD - Ruth Falls Main Dam Refurbishment ATO (NSUARB M11927) NSPI Responses to The Consumer Advocate Information Requests
AI summary The document outlines NSPI's responses to information requests from The Consumer Advocate regarding the Hyd - Ruth Falls Main Dam Refurbishment ATO (NSUARB M11927). It provides details on the project and its implications.
7 Description UARB Approved Original Submission ATO Submission Variance ARCHELOGICAL INVESTIGATION Archaeological Reconnaissance and Mitigation for Dewatering of Ruth Falls Reservoir in 2025- 2026: To complete archaeological reconnaissance...
AI summary The text outlines two archaeological-related expenses submitted by ATO for the Ruth Falls Reservoir project, including reconnaissance and mitigation costs, as well as security costs for exposed pre-contact First Nations sites during the reservoir drawdown in 2025-2026.
CI 50518 - HYD - Ruth Falls Main Dam Refurbishment ATO (NSUARB M11927) NSPI Responses to The Consumer Advocate Information Requests
AI summary The document outlines NSPI's responses to information requests from The Consumer Advocate regarding the Hyd - Ruth Falls Main Dam Refurbishment ATO (NSUARB M11927). It provides details on the project and its implications.
REDACTED 2025-2026. Methodology and Costing for Archaeological Screening: Additional costs related to $2,256 $7,966 $5,710 methodology and costing for archaeological screening Other historical costs - $2,193 $2,193 MI'KMAQ ENGAGEMENT Addit...
AI summary The document outlines additional costs for archaeological screening and Mi'Kmaq engagement in the 2025-2026 period, including payments to the KMKNO for meaningful engagement with NS Power and the cost of a Mi'Kmaq observer for archaeological work.
CI 50518 - HYD - Ruth Falls Main Dam Refurbishment ATO (NSUARB M11927) NSPI Responses to The Consumer Advocate Information Requests
AI summary The document outlines NSPI's responses to information requests from The Consumer Advocate regarding the Hyd - Ruth Falls Main Dam Refurbishment ATO (NSUARB M11927). It provides details on the project and its implications.
CI 50518 - HYD - Ruth Falls Main Dam Refurbishment ATO (NSUARB M11927) NSPI Responses to The Consumer Advocate Information Requests
AI summary The document outlines NSPI's responses to information requests from The Consumer Advocate regarding the Hyd - Ruth Falls Main Dam Refurbishment ATO (NSUARB M11927). It provides details on the project and its implications.
N-6NSPI (NSUARB) RIR-1 to 13 - Redacted
369 passages
CI 50518 - HYD - Ruth Falls Main Dam Refurbishment ATO (NSUARB M11927) NSPI Responses to NSUARB Information Requests 1 Request IR-1: 2 3 (a) Re-evaluation was not necessary as all five options considered would have the same cost 4 increase...
AI summary The response to the NSUARB information request indicates that re-evaluation of options for the Ruth Falls Main Dam Refurbishment was not necessary, as all five options would have similar cost increases due to environmental permitting and construction deferral. Option 4 remains the lowest cost option.
F. OUT OF PROVINCE PROPONENTS Elliot Excavators Limited will ensure all out of province proponents are compliant with Nova Scotia provincial safety training requirements and provide verification to NSPI. Elliot Excavators Limited will ensu...
AI summary Elliot Excavators Limited ensures compliance with Nova Scotia safety training and gear requirements for out-of-province proponents. Safety gear must be annually inspected and CSA approved for use in Nova Scotia.
2 (b) 3 (i) At the time of NS Power's application to DFO for Ruth Falls, the implementation 4 of the modernized Fisheries Act (2019) was in the early stages and information 5 requirements to satisfy an FAA for hydro capital refurbishment p...
AI summary At the time of NS Power's application to DFO for Ruth Falls, the modernized Fisheries Act (2019) was in early stages, and information requirements for FAA under the Act for hydro capital refurbishment projects were not well understood. Prior to 2019, drawdowns and temporary construction footprints were not typical triggers for FAA.
CI 50518 NSUARB IR-12 Attachment 1 Page 1 of 3 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Fisheries and Oceans Canada Pêches et Océans Canada Ecosystem Management 1 Challenger Drive PO Box 1006, Station P500 Dartmouth NS B2Y 4A2 March 13,...
AI summary Nova Scotia Power Inc. (NSPI) has submitted an application to Fisheries and Oceans Canada (DFO) for authorization under the Fisheries Act for the refurbishment of the Ruth Falls Headpond Dam, including modifications to the dam structure, fish passage systems, and temporary infrastructure during construction.
CI 50518 NSUARB IR-12 Attachment 1 Page 2 of 3 REDACTED (CONFIDENTIAL INFORMATION REMOVED) 19-HMAR-00549 - 2 - The project is scheduled to be completed between May 1, 2020 and November 30, 2020. Our review considered the following informat...
AI summary The project, scheduled for completion between May 1, 2020, and November 30, 2020, has been reviewed for potential impacts on fish and fish habitat under the Fisheries Act and the Species at Risk Act. The review found that the project may cause temporary disruption to fish habitat and potentially additional instream footprint due to dam refurbishment activities.
3. Fisheries Management Objectives Did you consider local Fisheries Management Objectives in your planning process? Yes No If yes, please identify the Fisheries Management Objective(s)/Plan considered and, if applicable, reference the rele...
AI summary The application for the Sheet Harbour Hydro System project declares that no formal Fisheries Management Objectives (FMOs) are associated with the project and that it will not impact any Fisheries Management Plans. The information is collected by the Department of Fisheries and Oceans (DFO) under the Fisheries Act for administrative purposes.
NOVA SCOTIA POWER INCORPORATED SUPPORTING INFORMATION – APPLICATION FOR AUTHORIZATION ‐ FISHERIES ACT – RUTH FALLS DAM REFURBISHMENT SHEET HARBOUR HYDRO SYSTEM 2021
AI summary Nova Scotia Power Incorporated has submitted supporting information for an application related to the Fisheries Act concerning the refurbishment of the Ruth Falls Dam in Sheet Harbour Hydro System in 2021.
CI 50518 NSUARB IR-12 Attachment 2 Page 5 of 50 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Ruth Falls Dam Refurbishment Application for Authorization – 34.4(2)(b) and 35(2)(b) Fisheries Act Supporting Information
AI summary This document relates to the Ruth Falls Dam Refurbishment Application for Authorization under sections 34.4(2)(b) and 35(2)(b) of the Fisheries Act. It includes supporting information and is part of a regulatory proceeding involving the Department of Fisheries and Oceans (DFO).
CI 50518 NSUARB IR-12 Attachment 2 Page 8 of 50 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Ruth Falls Dam Refurbishment Application for Authorization – 34.4(2)(b) and 35(2)(b) Fisheries Act Supporting Information watering Ruth Falls Headp...
AI summary The document outlines the proposed refurbishment of the Ruth Falls Dam, including temporary access road construction, material usage, and environmental safeguards. Measures will be taken to ensure that hydrology remains unchanged and that materials are handled in compliance with WHMIS and other regulations.
CI 50518 NSUARB IR-12 Attachment 2 Page 9 of 50 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Ruth Falls Dam Refurbishment Application for Authorization – 34.4(2)(b) and 35(2)(b) Fisheries Act Supporting Information and Environmental Descrip...
AI summary The document pertains to the Ruth Falls Dam Refurbishment Application for Authorization under sections 34.4(2)(b) and 35(2)(b) of the Fisheries Act, including supporting environmental information submitted to NSE as part of a Watercourse Alteration Approval Application.
CI 50518 NSUARB IR-12 Attachment 2 Page 11 of 50 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Ruth Falls Dam Refurbishment Application for Authorization – 34.4(2)(b) and 35(2)(b) Fisheries Act Supporting Information
AI summary The document is a supporting information submission for the Ruth Falls Dam Refurbishment Application under the Fisheries Act, specifically sections 34.4(2)(b) and 35(2)(b). It includes a redacted page from the application, likely containing confidential details related to the refurbishment project.
Table 1. Summary of fish sampled during the 2007 and 2017 Ruth Falls Reservoir surveys Number Caught Reservoir Site # Method Species Caught 2007 2017 84 Minnow trap Yellow perch 0 11 85 Minnow trap Yellow perch 0 12 88 Minnow trap Yellow p...
AI summary The text summarizes fish sampling data from the Ruth Falls Reservoir during 2007 and 2017, showing changes in the number of fish caught across different sites and methods. Electrofishing was also conducted in surrounding areas, with results detailed in Table 2.
CI 50518 NSUARB IR-12 Attachment 2 Page 12 of 50 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Ruth Falls Dam Refurbishment Application for Authorization – 34.4(2)(b) and 35(2)(b) Fisheries Act Supporting Information
AI summary This document is a redacted attachment related to the Ruth Falls Dam Refurbishment Application for Authorization under sections 34.4(2)(b) and 35(2)(b) of the Fisheries Act, providing supporting information for the application.
Table 3. Quantitative fish habitat data at stream sites near Ruth Falls in 2017. Location Area surveyed (m2 ) Gradient (%) Flow m3/sec Mean. water depth (m) Max. water depth (m) Mean velocity (m/s) Max water velocity (m/s) Grant River, sit...
AI summary Table 3 presents quantitative fish habitat data from stream sites near Ruth Falls in 2017. Water quality sampling in the Ruth Falls Reservoir showed lower pH levels compared to upstream reservoirs, with elevated metals concentrations in deeper waters. Parameters like TDS and conductivity were within acceptable ranges, but pH and metal levels exceeded guidelines in some areas.
An ACCDC search of fish species at risk in the Sheet Harbour watershed identified American eel as threatened by COSEWIC while provincial rarity ranks of S3 was given to Alewife, Brook trout, and Lake trout; S2 to American eel; and S1 to Br...
AI summary An ACCDC search identified several fish species at risk in the Sheet Harbour watershed, including the American eel, which is classified as threatened by COSEWIC. Water flow and levels in the area are managed by NSPI Hydro Operations, with specific supply levels defined.
CI 50518 NSUARB IR-12 Attachment 2 Page 14 of 50 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Ruth Falls Dam Refurbishment Application for Authorization – 34.4(2)(b) and 35(2)(b) Fisheries Act Supporting Information
AI summary This document is part of an application for authorization related to the refurbishment of the Ruth Falls Dam, under sections 34.4(2)(b) and 35(2)(b) of the Fisheries Act. It includes supporting information and is marked as confidential.
Potential Effect Measure to Mitigate Serious Harm Loss of ~60 m2 of fish habitat in the East River of Sheet Harbour The amount of new footprint has been optimized to meet stability requirements for the dam. Given the habitat loss is immedi...
AI summary The potential loss of approximately 60 m2 of fish habitat in the East River of Sheet Harbour is discussed. The habitat loss is located immediately below a dam on primarily bedrock, which does not provide spawning habitat or cover for fish. The mitigation measure involves optimizing the new footprint to meet stability requirements and offsetting the loss as described in section 16.
Ruth Falls Dam Refurbishment Application for Authorization – 34.4(2)(b) and 35(2)(b) Fisheries Act Supporting Information
AI summary The document pertains to the Ruth Falls Dam Refurbishment Application for Authorization under sections 34.4(2)(b) and 35(2)(b) of the Fisheries Act, providing supporting information for the application.
CI 50518 NSUARB IR-12 Attachment 2 Page 19 of 50 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Ruth Falls Dam Refurbishment Application for Authorization – 34.4(2)(b) and 35(2)(b) Fisheries Act Supporting Information
AI summary The document discusses the Ruth Falls Dam Refurbishment Application for Authorization under sections 34.4(2)(b) and 35(2)(b) of the Fisheries Act, including supporting information related to the project.
Potential Effect Measure to Mitigate Serious Harm Potential Residual Serious Harm to Fish Fish mortality due to stranding when lowering reservoir. In order to conduct work in dry conditions, the reservoir will be lowered 7‐ 15' below the m...
AI summary The potential effect of lowering the reservoir during maintenance work is fish mortality due to stranding. To mitigate this, the reservoir will be lowered below the minimum operating level, and fish will be monitored and relocated if stranded. No residual harm is anticipated.
Potential Effect Measure to Mitigate Serious Harm Potential Residual Serious Harm to Fish Inability to monitor for salmon while trap is out of service. NSPI have considered options for continuing to operate the salmon trap during construct...
AI summary The document discusses the potential effect of not operating a salmon trap during construction and the mitigation measure of not operating it for the 2021 season, pending approval from NSE and DFO. No residual harm to salmon is anticipated.
16.0 OFFSETTING PLAN NSPI is proposing, in partnership with the Mi'kmaw Conservation Group (MCG), a restoration project that is suitable for offsetting of serious harm for the Ruth Falls Dam refurbishment and the Sloane Reservoir Wing Dam...
AI summary NSPI, in partnership with the Mi'kmaw Conservation Group, is proposing a fish habitat restoration project to offset the environmental impact of two dam refurbishment projects. The plan involves identifying a suitable project in the nearby area, with collaboration from local communities and organizations. A letter of credit for $62,000 has been obtained based on previous offsetting plans.
CI 50518 NSUARB IR-12 Attachment 2 Page 23 of 50 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Ruth Falls Dam Refurbishment Application for Authorization – 34.4(2)(b) and 35(2)(b) Fisheries Act Supporting Information
AI summary The document is a supporting information submission for the Ruth Falls Dam Refurbishment Application under sections 34.4(2)(b) and 35(2)(b) of the Fisheries Act. It includes a redacted image and appears to be part of a regulatory proceeding involving environmental considerations.
CI 50518 NSUARB IR-12 Attachment 2 Page 27 of 50 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Ruth Falls Dam Refurbishment Application for Authorization – 34.4(2)(b) and 35(2)(b) Fisheries Act Supporting Information APPENDIX B – SITE PHOTOS
AI summary The document is an appendix containing site photos related to the Ruth Falls Dam Refurbishment Application for Authorization under sections 34.4(2)(b) and 35(2)(b) of the Fisheries Act. The photos are part of the supporting information submitted for the application.
CI 50518 NSUARB IR-12 Attachment 2 Page 31 of 50 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Ruth Falls Dam Refurbishment Application for Authorization – 34.4(2)(b) and 35(2)(b) Fisheries Act Supporting Information APPENDIX C – ENGINEERING...
AI summary The document includes an application for authorization related to the Ruth Falls Dam Refurbishment under sections 34.4(2)(b) and 35(2)(b) of the Fisheries Act. It references engineering drawings and is part of a regulatory proceeding involving the Nova Scotia Utility and Review Board.
CI 50518 NSUARB IR-12 Attachment 2 Page 40 of 50 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Ruth Falls Dam Refurbishment Application for Authorization – 34.4(2)(b) and 35(2)(b) Fisheries Act Supporting Information APPENDIX D – NSE WATERCO...
AI summary This document is an application for authorization related to the Ruth Falls Dam Refurbishment under the Fisheries Act, with supporting information including an appendix on watercourse alteration and environmental description.
CI 50518 NSUARB IR-12 Attachment 2 Page 41 of 50 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Ruth Falls Dam Refurbishment Application for Authorization – 34.4(2)(b) and 35(2)(b) Fisheries Act Supporting Information
AI summary The document discusses the Ruth Falls Dam Refurbishment Application for Authorization under sections 34.4(2)(b) and 35(2)(b) of the Fisheries Act, including supporting information provided for the application.
2.1 Existing Project Area Ruth Falls Headpond is located immediately downstream of the Malay Falls Headpond. The reservoir is contained by a 190 m (620') long earthfill embankment and a 150 m (490') long concrete spillway structure. The sp...
AI summary The Ruth Falls Headpond is located downstream of the Malay Falls Headpond and includes an earthfill embankment and concrete spillway with fish migration features. NSPI Hydro Operations manages water levels and provides a maintenance flow for fish migration, with specific flow allocations for salmon and eel. Fish ladder operations and monitoring by DFO are also described.
3.0 REGULATORY PERMITS/APPROVALS A Watercourse Alteration Approval is required in accordance with Section 5(A)(1)(c) of the Activities Designation Regulations of the Environment Act . A separate request for review has been submitted to DFO...
AI summary A Watercourse Alteration Approval is required under the Environment Act, and a request for review has been submitted to DFO to determine if a Fisheries Act Authorization is needed.
4.1 Water Management In order to expose the portions of the concrete dam to be refurbished, the Ruth Falls Headpond will be lowered between 2‐4.5 m (7‐15 feet) from the 33.3 m (109.4') minimum operating level maintained April 1st to Novemb...
AI summary The Ruth Falls Headpond will be lowered between 2-4.5 m to expose parts of the concrete dam for refurbishment, with the exact amount determined after assessing fish-related factors.
CI 50518 NSUARB IR-12 Attachment 2 Page 45 of 50 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Ruth Falls Dam Refurbishment Application for Authorization – 34.4(2)(b) and 35(2)(b) Fisheries Act Supporting Information
AI summary This document is related to the Ruth Falls Dam Refurbishment Application for Authorization under sections 34.4(2)(b) and 35(2)(b) of the Fisheries Act, with supporting information provided.
5.0 ARCHAEOLOGICAL CONSIDERATIONS An Archaeological Screening and Reconnaissance (ARIA) for the Ruth Falls Headpond was completed in 2017. The purpose of the ARIA was to assess the potential for archaeological resources in the project area...
AI summary An archaeological screening and shovel testing were conducted for the Ruth Falls Headpond project. The screening identified three areas with high potential for archaeological resources, but shovel testing in two of these areas found no significant resources, allowing development to proceed.
CI 50518 NSUARB IR-12 Attachment 2 Page 46 of 50 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Ruth Falls Dam Refurbishment Application for Authorization – 34.4(2)(b) and 35(2)(b) Fisheries Act Supporting Information APPENDIX E – COPY OF LET...
AI summary The document contains an application for authorization related to the Ruth Falls Dam refurbishment under sections 34.4(2)(b) and 35(2)(b) of the Fisheries Act, including a supporting letter of credit. The content is partially redacted and includes a printed label for a shipment.
CI 50518 NSUARB IR-12 Attachment 3 Page 1 of 3 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Pêches et Océans Canada Bedford Institute of Oceanography 1 Challenger Drive P.O. Box 1006, Station P500 Dartmouth, Nova Scotia, B2Y 4A2 August 4, 2...
AI summary Nova Scotia Power Inc. (NSPI) submitted an application for authorization to refurbish the Ruth Falls Headpond Dam, which includes drawdown of the headpond, replacement of stop log bays, and installation of a spillway. DFO has requested additional information for the review of this application, which involves potential impacts on fish and fish habitat.
Marshall Falls Impacts o NSPI is requesting flexibility on the 191.4' elevation requirements of the NSE Operating Approval while remaining within normal operating levels. Provide a summary of normal operating levels, including minimum and...
AI summary NSPI is requesting flexibility on the 191.4' elevation requirements of the NSE Operating Approval, asking for a summary of normal operating levels, including minimum and maximum water levels during the proposed construction period.
Fisheries Act Authorisation Application Supporting Information #1 May 2021 CI 50518 NSUARB IR-12 Attachment 4 Page 2 of 57 Ruth Falls Dam Refurbishment S 35(2)(b) Fisheries Act Authorization Supporting Information #1 Monitoring Activities
AI summary This document provides supporting information for a Fisheries Act Authorization application related to the refurbishment of Ruth Falls Dam. It includes details about monitoring activities associated with the project.
Introduction This Addendum is to outline NS Power's proposed monitoring activities and additional avoidance and mitigation measures for the Ruth Falls Dam Refurbishment Project (the Project) as well as to address DFO's letter requesting ad...
AI summary This addendum outlines NS Power's proposed monitoring activities and mitigation measures for the Ruth Falls Dam Refurbishment Project. It addresses DFO's request for additional information regarding the project's authorization, including revised water management plans, fish migration monitoring, and construction sequencing.
Description of Effects on Fish and Fish Habitat The project involves refurbishing the main dam by replacing the existing 30 stop log bays with a series of rubber dams, installing an uncontrolled overflow spillway at the northwest end of th...
AI summary The project involves refurbishing a dam with changes to its structure and water management strategies, which may temporarily disrupt fish habitat and affect fish populations. The temporary drawdown of the reservoir and construction activities are highlighted as potential impacts.
Ruth Falls Dam Refurbishment S 35(2)(b) Fisheries Act Authorization Supporting Information #1 Monitoring Activities
AI summary This document provides supporting information for the Ruth Falls Dam Refurbishment under section 35(2)(b) of the Fisheries Act, focusing on monitoring activities.
CI 50518 NSUARB IR-12 Attachment 4 Page 11 of 57 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Ruth Falls Dam Refurbishment S 35(2)(b) Fisheries Act Authorization Supporting Information #1 Monitoring Activities 96.0 ft (29.3 m). The right up...
AI summary This section discusses the monitoring activities related to the Ruth Falls Dam Refurbishment under the Fisheries Act Authorization. It includes details about the installation of cofferdams and the estimated maximum discharge flows through a bypass.
Ruth Falls Dam Refurbishment S 35(2)(b) Fisheries Act Authorization Supporting Information #1 Monitoring Activities
AI summary This document provides supporting information for the Ruth Falls Dam Refurbishment under section 35(2)(b) of the Fisheries Act, focusing on monitoring activities.
CI 50518 NSUARB IR-12 Attachment 4 Page 16 of 57 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Ruth Falls Dam Refurbishment S 35(2)(b) Fisheries Act Authorization Supporting Information #1 Monitoring Activities
AI summary This document provides supporting information related to the Ruth Falls Dam Refurbishment under section 35(2)(b) of the Fisheries Act, focusing on monitoring activities. It includes a redacted image likely containing details about the monitoring plan or implementation.
Table 5: Fish species present in the Sheet Harbour watershed. Common Name Scientific Name NSPI 2007 NSPI 2017 Alewife Alosa pseudoharengus Confirmed American eel Anguilla rostrata Confirmed Confirmed Banded killifish Fundulus diaphanous Co...
AI summary Table 5 lists fish species present in the Sheet Harbour watershed, with data from 2007 and 2017. Most species were confirmed in both years, while Alewife and Pearl dace were only confirmed in 2017 and 2007, respectively. Atlantic salmon were not observed during sampling but have been noted in small numbers at Ruth Falls.
WATER QUALITY Ruth Falls Headpond is a relatively small, shallow headpond with depths of up to 26.2 ft (8 m) in the deepest parts. Water quality of the headpond is heavily influenced by inflows from the Grant River Watershed as well as by...
AI summary The Ruth Falls Headpond's water quality is influenced by inflows from the Grant River Watershed and the East River. NS Power conducts water quality surveys as part of the hydro relicensing program, with studies for the Sheet Harbour Hydro System completed in 2017.
CI 50518 NSUARB IR-12 Attachment 4 Page 21 of 57 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Ruth Falls Dam Refurbishment S 35(2)(b) Fisheries Act Authorization Supporting Information #1 Monitoring Activities result of the drawdown does no...
AI summary The text discusses monitoring activities related to the Ruth Falls Dam Refurbishment and mentions that the result of the drawdown does not necessarily cause permanent harm to the habitat. It requests further engagement with DFO on how data collected will inform offsetting requirements.
CI 50518 NSUARB IR-12 Attachment 4 Page 23 of 57 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Ruth Falls Dam Refurbishment S 35(2)(b) Fisheries Act Authorization Supporting Information #1 Monitoring Activities
AI summary This document provides supporting information for the Ruth Falls Dam Refurbishment under section 35(2)(b) of the Fisheries Act, focusing on monitoring activities related to the project.
4.5.3 Wetlands As part of the 2007 relicensing of the Sheet Harbour Hydro System, a qualified wetland consultant was contracted to complete a wetland and littoral zone vegetation survey on Ruth Falls Headpond. Twenty‐ one (21) wetlands tha...
AI summary As part of the 2007 relicensing of the Sheet Harbour Hydro System, a wetland survey identified 21 contiguous wetlands near the Ruth Falls Headpond. The document discusses cross-referencing historical wetland data with current conditions.
CI 50518 NSUARB IR-12 Attachment 4 Page 24 of 57 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Ruth Falls Dam Refurbishment S 35(2)(b) Fisheries Act Authorization Supporting Information #1 Monitoring Activities NS provincial wetland GIS data...
AI summary The document discusses monitoring activities related to the Ruth Falls Dam Refurbishment and the identification of wetlands on the Ruth Falls Headpond. It notes that 22 possible wetlands were identified, with most being shore bogs that are not tolerant of deep flooding. No rare or endangered vascular plant species were found.
Table 7: Wetlands Found Within the Littoral Zone of Ruth Falls Headpond. Wetland ID Number Wetland Type Wetland Description 1 Coniferous treed shore bog No 2 Coniferous treed shore bog No 3 Coniferous treed shore bog (two subtypes) Yes 4 S...
AI summary A survey of the littoral zone of Ruth Falls Headpond identified various wetland types, but no rare or endangered species were found during field surveys. However, previous relicensing records indicate the presence of two rare species near the area, though they are not expected to be impacted by the headpond drawdown.
CI 50518 NSUARB IR-12 Attachment 4 Page 25 of 57 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Ruth Falls Dam Refurbishment S 35(2)(b) Fisheries Act Authorization Supporting Information #1 Monitoring Activities Figure 3: Mapped wetlands on R...
AI summary This section of the document provides supporting information regarding the Ruth Falls Dam Refurbishment and includes a figure mapping wetlands on the Ruth Falls Headpond from 2007. It is part of a fisheries act authorization process.
CI 50518 NSUARB IR-12 Attachment 4 Page 28 of 57 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Ruth Falls Dam Refurbishment S 35(2)(b) Fisheries Act Authorization Supporting Information #1 Monitoring Activities
AI summary This document provides supporting information for the Ruth Falls Dam Refurbishment under the Fisheries Act Authorization, specifically focusing on monitoring activities. It includes a redacted image related to the topic.
CI 50518 NSUARB IR-12 Attachment 4 Page 29 of 57 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Ruth Falls Dam Refurbishment S 35(2)(b) Fisheries Act Authorization Supporting Information #1 Monitoring Activities
AI summary This document provides supporting information for the Ruth Falls Dam Refurbishment under section 35(2)(b) of the Fisheries Act, focusing on monitoring activities. It includes a redacted image related to the topic.
Ruth Falls Dam Refurbishment S 35(2)(b) Fisheries Act Authorization Supporting Information #1 Monitoring Activities
AI summary This document provides supporting information for the Ruth Falls Dam Refurbishment under section 35(2)(b) of the Fisheries Act, focusing on monitoring activities.
CI 50518 NSUARB IR-12 Attachment 4 Page 31 of 57 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Ruth Falls Dam Refurbishment S 35(2)(b) Fisheries Act Authorization Supporting Information #1 Monitoring Activities APPENDIX A – Engineering Desig...
AI summary This document provides supporting information for the Ruth Falls Dam Refurbishment under the Fisheries Act Authorization, focusing on monitoring activities and including an appendix with engineering designs and a drawing reference.
CI 50518 NSUARB IR-12 Attachment 4 Page 55 of 57 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Ruth Falls Dam Refurbishment S 35(2)(b) Fisheries Act Authorization Supporting Information #1 Monitoring Activities APPENDIX C – Bathymetry Mapping
AI summary This document discusses the monitoring activities related to the Ruth Falls Dam Refurbishment under the Fisheries Act Authorization, specifically focusing on bathymetry mapping as part of the supporting information.
CI 50518 NSUARB IR-12 Attachment 4 Page 56 of 57 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Ruth Falls Dam Refurbishment S 35(2)(b) Fisheries Act Authorization Supporting Information #1 Monitoring Activities
AI summary The document discusses monitoring activities related to the Ruth Falls Dam Refurbishment under the Fisheries Act Authorization, specifically Section 35(2)(b). It includes visual content such as images and figures that support the monitoring information.
CI 50518 NSUARB IR-12 Attachment 4 Page 57 of 57 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Ruth Falls Dam Refurbishment S 35(2)(b) Fisheries Act Authorization Supporting Information #1 Monitoring Activities
AI summary The document outlines monitoring activities related to the Ruth Falls Dam Refurbishment under Section 35(2)(b) of the Fisheries Act. It includes supporting information and visual content, though specific details are redacted.
CI 50518 NSUARB IR-12 Attachment 5 Page 2 of 2 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Fisheries and Oceans Canada Pêches et Océans Canada Correspondence regarding changes to the scope of work and timelines, received via email from NS...
AI summary The document discusses a request for review concerning changes to the scope of work and timelines for a project, submitted by NS Power. The application was found incomplete due to missing information under the Fisheries Act and related regulations. A revised request is required to proceed.
NOVA SCOTIA POWER INCORPORATED SUPPORTING INFORMATION – APPLICATION FOR AUTHORIZATION - FISHERIES ACT – RUTH FALLS DAM REFURBISHMENT SHEET HARBOUR HYDRO SYSTEM January 2022 CI 50518 CA IR-5 Attachment 1 Page 2 of 132 Ruth Falls Dam Refurbi...
AI summary This document is a supporting information submission by Nova Scotia Power Incorporated for an application for authorization under the Fisheries Act, related to the Ruth Falls Dam Refurbishment in the Sheet Harbour Hydro System. The submission is part of a regulatory proceeding and includes details relevant to the refurbishment project.
CI 50518 CA IR-5 Attachment 1 Page 4 of 132 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Ruth Falls Dam Refurbishment Application for Authorization – 34.4(2)(b) and 35(2)(b) Fisheries Act Supporting Information - Refurbishment of the origin...
AI summary The document outlines the refurbishment of the Ruth Falls Dam, including the replacement of stoplogs with low level sluice gates and the removal of a bulkhead, as part of an application for authorization under the Fisheries Act.
CI 50518 CA IR-5 Attachment 1 Page 5 of 132 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Ruth Falls Dam Refurbishment Application for Authorization – 34.4(2)(b) and 35(2)(b) Fisheries Act Supporting Information elevation from full supply le...
AI summary The document outlines the Ruth Falls Dam Refurbishment Application, focusing on the drawdown process and environmental requirements. It includes a figure showing the sluice rating curve and details of the annual environmental requirements set by Nova Scotia Environment, such as maintenance flow rates and minimum operating levels.
6.0 COMMUNITY The Project site is located near the community of Sheet Harbour, HRM, Nova Scotia.
AI summary The Project site is located near the community of Sheet Harbour, HRM, Nova Scotia.
8.0 DESCRIPTION OF FISH AND FISH HABITAT The project site is located on the Ruth Falls Headpond in the NS Power Sheet Harbour Hydro System. Upstream of the dam is lake habitat while downstream of the dam is the East River of Sheet Harbour....
AI summary The project site is located on the Ruth Falls Headpond in the NS Power Sheet Harbour Hydro System. Fish and fish habitat studies were conducted as part of the 2018 relicensing process. Atlantic salmon were historically of interest, but recent low returns suggest no breeding population. Mercury contamination has been observed in certain fish species, and no invasive species or critical habitat were found in the area.
Ruth Falls Dam Refurbishment Application for Authorization – 34.4(2)(b) and 35(2)(b) Fisheries Act Supporting Information
AI summary The document pertains to the Ruth Falls Dam Refurbishment Application for Authorization under sections 34.4(2)(b) and 35(2)(b) of the Fisheries Act, providing supporting information for the application.
CI 50518 CA IR-5 Attachment 1 Page 10 of 132 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Ruth Falls Dam Refurbishment Application for Authorization – 34.4(2)(b) and 35(2)(b) Fisheries Act Supporting Information
AI summary This document is a supporting information submission for the Ruth Falls Dam Refurbishment Application under the Fisheries Act, specifically sections 34.4(2)(b) and 35(2)(b). It includes a redacted page from the application, likely containing confidential details related to the project.
Table 2. Summary of fish sampled during the 2006/2007 and 2017 stream electrofishing surveys Number Caught Location Site # Species 2006/7 2017 American eel 2 4 Brown bullhead 1 0 Grant River 43 Lake chub 0 7 Pearl dace 4 0 White sucker 0 1...
AI summary Table 2 summarizes fish sampling data from 2006/2007 and 2017 electrofishing surveys. It lists the number of fish caught at different sites, including species like American eel, Brown bullhead, and Lake chub. A physical habitat survey was conducted, noting substrate composition and habitat types at Site 68 downstream of the Ruth Falls Dam.
CI 50518 CA IR-5 Attachment 1 Page 12 of 132 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Ruth Falls Dam Refurbishment Application for Authorization – 34.4(2)(b) and 35(2)(b) Fisheries Act Supporting Information over an 8 month period, othe...
AI summary The document discusses the Ruth Falls Dam Refurbishment Application under the Fisheries Act, highlighting potential impacts on fish and fish habitat, with specific reference to a table outlining relevant project activities.
CI 50518 CA IR-5 Attachment 1 Page 13 of 132 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Ruth Falls Dam Refurbishment Application for Authorization – 34.4(2)(b) and 35(2)(b) Fisheries Act Supporting Information
AI summary This document is part of an application for authorization related to the refurbishment of the Ruth Falls Dam, providing supporting information under sections 34.4(2)(b) and 35(2)(b) of the Fisheries Act.
CI 50518 CA IR-5 Attachment 1 Page 14 of 132 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Ruth Falls Dam Refurbishment Application for Authorization – 34.4(2)(b) and 35(2)(b) Fisheries Act Supporting Information diverted to the bypass pipe....
AI summary The text discusses the Ruth Falls Dam Refurbishment Application, mentioning the diversion of water to a bypass pipe and the submission of post-modification study results to the Department of Fisheries and Oceans (DFO), with reference to the Monitoring Plan in Appendix F.
CI 50518 CA IR-5 Attachment 1 Page 15 of 132 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Ruth Falls Dam Refurbishment Application for Authorization – 34.4(2)(b) and 35(2)(b) Fisheries Act Supporting Information
AI summary This document is part of an application for authorization related to the refurbishment of the Ruth Falls Dam, including supporting information under sections 34.4(2)(b) and 35(2)(b) of the Fisheries Act.
Potential Effect Measure to Mitigate Serious Harm Inability to provide safe fish passage upstream and downstream during construction. During construction, the fish ladder and fish bypass will be dewatered. The drawdown will be conducted in...
AI summary The document outlines measures to mitigate the impact of construction on fish passage, including dewatering the fish ladder and bypass during mid-July to avoid migration seasons and maintaining continuous water passage through gates.
Potential Effect Measure to Mitigate Serious Harm Inability to monitor for salmon while trap is out of service. Given that the salmon trap is tied directly to operation of the fish ladder and the extremely low returns of salmon to the East...
AI summary NS Power will not operate the salmon trap during the 2022 construction period due to the fish ladder being dewatered. An alternate passage through the vertical lift deep sluice bay will be used, but salmon will not be counted. A variance to the Sheet Harbour Water Approval will be sought.
Ruth Falls Dam Refurbishment Application for Authorization – 34.4(2)(b) and 35(2)(b) Fisheries Act Supporting Information
AI summary The document pertains to the Ruth Falls Dam Refurbishment Application for Authorization under sections 34.4(2)(b) and 35(2)(b) of the Fisheries Act, providing supporting information for the application.
14.0 DEATH OF FISH AND HARMFUL ALTERATION, DISRUPTION, OR DESTRUCTION OF FISH HABITAT AFTER IMPLEMENTATION OF MEASURES AND STANDARDS Table 6 provides a summary of potential impacts to fish and fish habitat including proposed mitigation and...
AI summary This section discusses the potential impacts on fish and fish habitat due to the Ruth Falls Dam refurbishment, including proposed mitigation measures and the risk of death of fish or harmful alteration, disruption, or destruction of fish habitat (HADD).
Potential Effect Measure to Mitigate Serious Harm Potential Residual Serious Harm to Fish Reduced ability for salmon to migrate upstream due to downstream supplemental flows not being released. Restrictions to water management required in...
AI summary The text discusses the potential impact of reduced supplemental flows on salmon migration in the East River of Sheet Harbour. NS Power plans to provide continuous water passage during construction and will seek a variance to the Sheet Harbour Water Approval. The low number of observed salmon suggests no residual serious harm is anticipated.
CI 50518 CA IR-5 Attachment 1 Page 26 of 132 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Ruth Falls Dam Refurbishment Application for Authorization – 34.4(2)(b) and 35(2)(b) Fisheries Act Supporting Information
AI summary This document is part of an application for authorization related to the Ruth Falls Dam refurbishment under sections 34.4(2)(b) and 35(2)(b) of the Fisheries Act. It includes supporting information and a redacted image.
CI 50518 CA IR-5 Attachment 1 Page 30 of 132 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Ruth Falls Dam Refurbishment Application for Authorization – 34.4(2)(b) and 35(2)(b) Fisheries Act Supporting Information APPENDIX B – SITE PHOTOS
AI summary The document is an appendix containing site photos related to the Ruth Falls Dam Refurbishment Application for Authorization under sections 34.4(2)(b) and 35(2)(b) of the Fisheries Act. The photos are part of the supporting information submitted for the application.
CI 50518 CA IR-5 Attachment 1 Page 34 of 132 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Ruth Falls Dam Refurbishment Application for Authorization – 34.4(2)(b) and 35(2)(b) Fisheries Act Supporting Information APPENDIX C – ENGINEERING DRA...
AI summary The document is an appendix containing engineering drawings related to the Ruth Falls Dam Refurbishment Application for Authorization under the Fisheries Act. It includes page numbers and a reference to a drawing number (DWG. H 0 9 6 H 1 1 6 3 1 0 0 0 4 0) and is part of a larger submission to the Nova Scotia Utility and Review Board.
90% REV. 1 REVIEW SUBMITTAL NOT FOR CONSTRUCTION 1 7 1 I DRA WING LIST - SHEET NO. QHEET I DESCRIPTION DATE REVISION STATUS NSPI DRAWING No. 100-01 DRAWING LIST ,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, 2020-12-18 C 90% REV. 1 REVIEW SUBMITT...
AI summary The document is a 90% REV. 1 REVIEW SUBMITTAL related to construction, containing various sheets and drawings with descriptions, dates, revisions, and statuses. It includes information about existing and new conditions, spillway plans, and other related details.
CI 50518 CA IR-5 Attachment 1 Page 59 of 132 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Ruth Falls Dam Refurbishment Application for Authorization – 34.4(2)(b) and 35(2)(b) Fisheries Act Supporting Information
AI summary The document pertains to an application for authorization related to the refurbishment of the Ruth Falls Dam, under sections 34.4(2)(b) and 35(2)(b) of the Fisheries Act, with supporting information provided.
CI 50518 CA IR-5 Attachment 1 Page 61 of 132 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Ruth Falls Dam Refurbishment Application for Authorization – 34.4(2)(b) and 35(2)(b) Fisheries Act Supporting Information however, that will not impac...
AI summary The text discusses the Ruth Falls Dam Refurbishment Application under the Fisheries Act, noting that the current minimum operating level will remain unchanged despite the refurbishment. This indicates that the design modifications will not affect operational parameters related to water levels.
3.0 REGULATORY PERMITS/APPROVALS A Watercourse Alteration Approval is required in accordance with Section 5(A)(1)(c) of the Activities Designation Regulations of the Environment Act . A separate request for review has been submitted to DFO...
AI summary A Watercourse Alteration Approval is required under the Environment Act, and a request for review has been submitted to DFO to determine if a Fisheries Act Authorization is needed.
CI 50518 CA IR-5 Attachment 1 Page 62 of 132 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Ruth Falls Dam Refurbishment Application for Authorization – 34.4(2)(b) and 35(2)(b) Fisheries Act Supporting Information
AI summary The document is a supporting information submission for the Ruth Falls Dam Refurbishment Application under sections 34.4(2)(b) and 35(2)(b) of the Fisheries Act. It includes a redacted page from a regulatory proceeding, likely involving environmental or aquatic impact assessments.
CI 50518 CA IR-5 Attachment 1 Page 65 of 132 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Ruth Falls Dam Refurbishment Application for Authorization – 34.4(2)(b) and 35(2)(b) Fisheries Act Supporting Information
AI summary The document pertains to the Ruth Falls Dam Refurbishment Application for Authorization under sections 34.4(2)(b) and 35(2)(b) of the Fisheries Act, with supporting information provided.
CI 50518 CA IR-5 Attachment 1 Page 66 of 132 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Ruth Falls Dam Refurbishment Application for Authorization – 34.4(2)(b) and 35(2)(b) Fisheries Act Supporting Information APPENDIX F – MONITORING PLAN
AI summary This document is part of an application for authorization related to the Ruth Falls Dam Refurbishment, focusing on supporting information under sections 34.4(2)(b) and 35(2)(b) of the Fisheries Act. It includes an appendix detailing a monitoring plan.
Ruth Falls Dam Refurbishment Project Fisheries Act Authorization Application 2022 Monitoring Plan January 2022 CI 50518 CA IR-5 Attachment 1 Page 68 of 132 Ruth Falls Dam Refurbishment S 35(2)(b) Fisheries Act Authorization Monitoring Plan
AI summary The document outlines a monitoring plan for the Ruth Falls Dam Refurbishment Project under the Fisheries Act Authorization Application, dated January 2022. It includes a reference to an attachment page from a larger document.
Introduction This Addendum is to outline NS Power's proposed monitoring activities, and additional avoidance and mitigation measures for the Ruth Falls Dam Refurbishment Project (the Project) as well as to address DFO's request for additio...
AI summary This addendum outlines NS Power's proposed monitoring activities and mitigation measures for the Ruth Falls Dam Refurbishment Project, addressing DFO's request for additional information. It includes details on water management, construction sequencing, and fish rescue plans.
Description of Effects on Fish and Fish Habitat The following water management strategies related to the Project have the potential to result in the death of fish by means other than fishing, and/or the harmful alteration, disruption, or d...
AI summary The Project may impact fish and fish habitat through temporary drawdowns, installation of cofferdams, and activities that could lead to fish death by entrainment or stranding. The instream footprint and disruption of littoral zone habitat are quantified.
Ruth Falls Dam Refurbishment S 35(2)(b) Fisheries Act Authorization Monitoring Plan The two outer gates are identical in their dimensions; therefore, yield the same outflows. All gates were considered to be fully open for the purpose of th...
AI summary The text discusses the monitoring plan for the Ruth Falls Dam Refurbishment under the Fisheries Act, noting that the two outer gates are identical and fully open for calculations, with the sill elevation above the headpond level.
CI 50518 CA IR-5 Attachment 1 Page 83 of 132 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Ruth Falls Dam Refurbishment S 35(2)(b) Fisheries Act Authorization Monitoring Plan
AI summary This document outlines a monitoring plan for the Ruth Falls Dam Refurbishment under the Fisheries Act Authorization S 35(2)(b). It includes a visual element, likely related to the monitoring process or site conditions.
Table 5: Fish Species present in the Sheet Harbour Watershed Common Name Scientific Name NS POWER 2007 NS POWER 2017 Alewife Alosa pseudoharengus Confirmed American eel Anguilla rostrata Confirmed Confirmed Banded killifish Fundulus diapha...
AI summary Table 5 lists fish species present in the Sheet Harbour Watershed, comparing data from NS Power's 2007 and 2017 surveys. Most species are confirmed in both years, while some are only confirmed in one. Atlantic salmon were not observed in 2007 or 2017, though small returns have been noted in a salmon trap.
CI 50518 CA IR-5 Attachment 1 Page 85 of 132 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Ruth Falls Dam Refurbishment S 35(2)(b) Fisheries Act Authorization Monitoring Plan drawdown (50% complete) and again immediately after the drawdown i...
AI summary This document outlines a monitoring plan for the Ruth Falls Dam Refurbishment project, focusing on assessing the connectivity of tributaries to the reservoir and documenting observations such as thermal refuges and tributary characteristics.
CI 50518 CA IR-5 Attachment 1 Page 88 of 132 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Ruth Falls Dam Refurbishment S 35(2)(b) Fisheries Act Authorization Monitoring Plan
AI summary The document outlines a monitoring plan related to the Ruth Falls Dam Refurbishment under the Fisheries Act Authorization S 35(2)(b). It includes a redacted image and references the Canadian Dam Association (CDA) and other relevant entities.
CI 50518 CA IR-5 Attachment 1 Page 91 of 132 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Ruth Falls Dam Refurbishment S 35(2)(b) Fisheries Act Authorization Monitoring Plan Figure 2: Plan view and schematic section of a Transect (from Rowa...
AI summary The document presents a monitoring plan for the Ruth Falls Dam Refurbishment under the Fisheries Act Authorization, including figures related to the dam's plan view and schematic section of a Transect.
CI 50518 CA IR-5 Attachment 1 Page 92 of 132 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Ruth Falls Dam Refurbishment S 35(2)(b) Fisheries Act Authorization Monitoring Plan
AI summary The document outlines a monitoring plan for the Ruth Falls Dam Refurbishment under the Fisheries Act Authorization, specifically addressing S 35(2)(b). It includes a redacted page from a regulatory proceeding and a reference to a confidentiality notice.
Table 6: Classification of substrate types Class Size Range (mm) Bedrock Continuous rock Boulder >250 Rubble 130-250 Cobble 30-130 Gravel 2-30 Sand 0.06-2 Mud 0.06 4.6.2.2 Vegetation characterization
AI summary The text presents a table classifying substrate types by size range and discusses vegetation characterization, indicating a focus on environmental and geological classification.
4.6.3 Wetlands As part of the 2007 relicensing of the Sheet Harbour Hydro System, a qualified wetland consultant was contracted to complete a wetland and littoral zone vegetation survey on Ruth Falls Headpond. Twentyone (21) wetlands that...
AI summary During the 2007 relicensing of the Sheet Harbour Hydro System, a wetland survey identified 21 wetlands near the Ruth Falls Headpond. When compared with current provincial wetland GIS data, only one wetland on the west side of the Ruth Falls Dam was found.
CI 50518 CA IR-5 Attachment 1 Page 93 of 132 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Ruth Falls Dam Refurbishment S 35(2)(b) Fisheries Act Authorization Monitoring Plan not identified during the 2007 survey (Figure 4). For planning pur...
AI summary The document outlines a monitoring plan for the Ruth Falls Dam Refurbishment under the Fisheries Act. It discusses the identification of wetlands in the area, noting that 22 possible wetlands were assumed to exist based on a 2007 survey. The wetlands are primarily shore bogs, and no rare or endangered vascular plant species were found.
CI 50518 CA IR-5 Attachment 1 Page 94 of 132 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Ruth Falls Dam Refurbishment S 35(2)(b) Fisheries Act Authorization Monitoring Plan Figure 3: Mapped wetlands on Ruth Falls Headpond (2007).
AI summary The document outlines a monitoring plan for the Ruth Falls Dam Refurbishment under the Fisheries Act Authorization, specifically addressing Section 35(2)(b). It includes a figure mapping wetlands on the Ruth Falls Headpond from 2007.
CI 50518 CA IR-5 Attachment 1 Page 98 of 132 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Ruth Falls Dam Refurbishment S 35(2)(b) Fisheries Act Authorization Monitoring Plan
AI summary This document outlines a monitoring plan for the Ruth Falls Dam Refurbishment under the Fisheries Act Authorization, specifically section 35(2)(b). It includes a redacted image related to the plan.
CI 50518 CA IR-5 Attachment 1 Page 101 of 132 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Ruth Falls Dam Refurbishment Application for Authorization – 34.4(2)(b) and 35(2)(b) Fisheries Act Supporting Information APPENDIX G – OFFSETTING PLAN
AI summary This document provides supporting information for the Ruth Falls Dam Refurbishment Application under the Fisheries Act, specifically Appendix G which outlines an offsetting plan.
Project Title: Sheet Harbour Area Habitat Offsetting Initiative
AI summary The Project Title is 'Sheet Harbour Area Habitat Offsetting Initiative,' which focuses on habitat restoration and conservation efforts in the Sheet Harbour area.
Previous Activities: Stewiacke River: MCG has operated/maintained a Rotary Screw Trap (RST) for the past 5 years in the Stewiacke River, NS and performed marked-recapture studies to estimate the population of Atlantic salmon smolts. MCG ha...
AI summary The MCG has conducted various fish population studies and habitat assessments in the Stewiacke, Shubenacadie, River Philip, and East River over the past several years, including marked-recapture studies, electrofishing surveys, and snorkel surveys to monitor Atlantic salmon populations.
Background: In early 2020 Nova Scotia Power Incorporated (NSPI) began discussions with Millbrook chief and council regarding two dam refurbishment projects in the Sheet Harbour Area (Ruth Falls Dam and Sloane Dam). NSPI and the CMM began d...
AI summary In early 2020, Nova Scotia Power Incorporated (NSPI) began discussions with Millbrook chief and council about two dam refurbishment projects. The CMM and DARFM were involved in offsetting efforts, with the NSSA contributing to the West River acid rain mitigation project. The Second Draft of the plan was reviewed by Millbrook and no issues were found.
Objective 2: Pre-offset baseline monitoring: The pre-habitat offset monitoring work on the West River Sheet Harbour will focus on habitat characteristic monitoring. Due to the large size of this river and no previously established baseline...
AI summary The pre-offset baseline monitoring on the West River Sheet Harbour will focus on habitat characteristics due to the river's size and lack of prior baseline studies. Water quality monitoring is limited due to acidification and an ongoing liming project.
Monitoring strategy and techniques: - Visualization: - o Site pictures taken at each survey site and structure site. - Pictures will be taken with the same orientation and matched with the map(s) established in year one (1) - o Will docume...
AI summary The monitoring strategy includes visualization through site pictures, general habitat surveys, cross-sectional surveys, and structure surveys. These activities aim to document fish presence, habitat features, and river characteristics, following established locations from year one.
Table 1: Project Deliverables and Timelines Activities Schedule Continued discussions between the CMM, NSSA, NSPI, and DFO regarding offsetting project requirements. April - June 2021 Continued updates and discussions between The CMM and M...
AI summary The table outlines the timeline and activities for a project involving the CMM, NSSA, NSPI, and DFO, focusing on discussions, monitoring, and restoration work related to an offsetting project. Key activities include pre-offset monitoring, design of restoration work, and post-restoration monitoring.
Site Map Via NSSA: Site Location: 45.9718°, -062.6383° Nearest approximate address: 88 W River Rd, Mooseland, NS B0J 2J0 Figure 1 – Map of 20,090 m 2 of stream that requires habitat restoration (red), of which the lower section (total sq m...
AI summary The document provides a site map and location details for a habitat restoration project near Mooseland, NS. It includes a map showing the area requiring restoration and references an appendix for further details on the habitat offsetting proposal.
Larger View of project area: Figure 2. Red marker indicates approximate area where restoration work will occur in comparison to the community of Sheet Harbour
AI summary The document includes a figure showing the approximate area where restoration work will take place, marked in red, in relation to the community of Sheet Harbour.
7.0 Limitations: The total budget and timelines will be dependent on continued discussions between NSPI, DFO, NSSA and the CMM (DARFM) regarding the offset requirements, as well as ensuring proper oversight and guidance on the work by Mill...
AI summary The project's budget and timeline are subject to discussions between NSPI, DFO, NSSA, and CMM (DARFM) regarding offset requirements and potential changes to the Species at Risk Act. Restoration costs and project scale may vary, and the CMM will not conduct consultations for proponents but will ensure proper engagement of Millbrook and other parties.
CI 50518 CA IR-5 Attachment 1 Page 126 of 132 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Ruth Falls Dam Refurbishment Application for Authorization – 34.4(2)(b) and 35(2)(b) Fisheries Act Supporting Information APPENDIX H – COPY OF LETTER...
AI summary The document includes a letter of credit related to the Ruth Falls Dam Refurbishment Application under the Fisheries Act. It is part of an attachment in a regulatory proceeding and includes a printed label for shipping.
CI 50518 CA IR-5 Attachment 1 Page 131 of 132 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Ruth Falls Dam Refurbishment Application for Authorization – 34.4(2)(b) and 35(2)(b) Fisheries Act Supporting Information APPENDIX I – DOWNSTREAM EEL...
AI summary The document is an appendix to a fisheries act application concerning the Ruth Falls Dam Refurbishment, focusing on a downstream eel passage study. It includes a redacted page from a regulatory proceeding and references supporting information for the authorization application.
Table 1. Wetlands identified at the Ruth Falls Reservoir (Jacques Whitford, 2007) Wetland ID Wetland Type 1 Treed shore bog 2 Treed shore bog 3 Treed shore bog 4 Shore bog 5 Shore bog 6 Treed shore bog/ floating bog 7 Shore bog 8 Shore bog...
AI summary The text presents a table identifying various wetland types at the Ruth Falls Reservoir, including treed shore bogs and shore bogs, as documented by Jacques Whitford in 2007. It also mentions a section on fish sampling, though no details are provided.
Methodology Wetland monitoring will include detailed vegetative, hydrological, and soil monitoring within the six selected wetlands. Each wetland to be monitored will be delineated prior to the commencement of monitoring activities to ensu...
AI summary The methodology for wetland monitoring includes detailed vegetative, hydrological, and soil assessments within six selected wetlands. Vegetative monitoring involves quadrats along transects, while monitoring wells and soil test pits are installed manually. Photographs are taken for future comparison. Monitoring occurs during the growing season and is conducted by trained biologists.
Table 3: Wetland Fish Habitat Monitoring Parameters and Methods of Assessment Monitoring Parameter Transect Portion to be assessed Methods of Assessment Photos OL, LS, BS Photos will be taken of the substrate (where applicable), vegetation...
AI summary Table 3 outlines the parameters and methods for monitoring wetland fish habitat, including photography, GPS mapping, vegetation assessment, water quality testing, and substrate analysis. These methods are applied to different transect portions (OL, LS, BS) to ensure comprehensive data collection.
CI 50518 NSUARB IR-12 Attachment 7 Page 7 of 10 Wetland and Wetland Fish Habitat Monitoring Plan, Ruth Falls Reservoir Ms. Kailey Osborne Nova Scotia Power Inc. February 4, 2022
AI summary This document outlines a Wetland and Wetland Fish Habitat Monitoring Plan for the Ruth Falls Reservoir, presented by Ms. Kailey Osborne of Nova Scotia Power Inc. on February 4, 2022.
Project # 21-7960 Monitoring Parameter Transect Portion to be assessed Methods of Assessment Water Level/Depth OL, LS The depth or level of water compared to the substrate should be measured using a measuring device. The use of a piezomete...
AI summary The document outlines monitoring parameters for water level changes during a drawdown, specifying the use of measuring devices and piezometers. Transect lines will guide assessment points, which may be adjusted for safety or omitted if necessary. Original points will be resumed once water levels return to pre-construction levels.
Table 4. Monitoring and Reporting Schedule for Wetland Monitoring Monitoring Event Wetland Monitoring WESP-AC Reporting Submission to NSECC Pre-construction Baseline ✓ ✓ Post-construction Year 1 ✓ ✓ Year 2 ✓ ✓ Year 3 ✓ ✓ Year 4 ✓ ✓ Year 5...
AI summary Table 4 outlines a monitoring and reporting schedule for wetland monitoring, including baseline data collection before construction and ongoing assessments post-construction. Data will be compared to evaluate vegetation, hydrology, and soils, with long-term impacts assessed after Year 5 and required consultation with NSECC.
CI 50518 NSUARB IR-12 Attachment 7 Page 8 of 10 Wetland and Wetland Fish Habitat Monitoring Plan, Ruth Falls Reservoir Ms. Kailey Osborne Nova Scotia Power Inc. February 4, 2022 Project # 21-7960
AI summary This document outlines a Wetland and Wetland Fish Habitat Monitoring Plan for the Ruth Falls Reservoir project, submitted by Nova Scotia Power Inc. to the Nova Scotia Utility and Regulatory Board on February 4, 2022.
REFERENCES Jacques Whitford. 2007. Report – Vegetation Surveys at the Sheet Harbour Hydroelectric System. Project No. 1026751. NSLC Adopt a Stream and Nova Scotia Salmon Association. 2018. The Nova Scotia Fish Habitat Suitability Assessmen...
AI summary The references section includes various documents and maps related to fish habitat assessments and wetland functional assessments, including a vegetation survey at the Sheet Harbour Hydroelectric System and a fish habitat suitability assessment manual.
CI 50518 NSUARB IR-12 Attachment 8 Page 3 of 14 REDACTED (CONFIDENTIAL INFORMATION REMOVED) RUTH FALLS REBUILD: FISH ENTRAINMENT STUDY FIELD PLAN Introduction March 24, 2022
AI summary This document outlines a field plan for a fish entrainment study related to the Ruth Falls Rebuild project, introduced on March 24, 2022.
1.0 INTRODUCTION Stantec Consulting Ltd. (Stantec) has been retained by Nova Scotia Power Inc. (NS Power) to conduct fish entrainment monitoring as part of the Ruth Falls Rebuild Project (the Project). Specifically, Stantec is conducting a...
AI summary Stantec Consulting Ltd. is conducting fish entrainment monitoring for the Ruth Falls Rebuild Project, focusing on gaspereau and other species. Aerovision Canada Inc. is conducting aerial drone surveys to assess habitat changes. The document outlines the field plan for the 2022 drawdown.
3.1 BASELINE FISH ABUNDANCE SURVEY - RUTH FALLS FLOWAGE Prior to the drawdown a baseline fish abundance survey will be conducted in Ruth Falls Flowage. The baseline survey was developed to obtain a sample of YoY gaspereau to establish dens...
AI summary A baseline fish abundance survey for YoY gaspereau in Ruth Falls Flowage will be conducted prior to the drawdown, using seining in the littoral zone. The survey aims to collect density, length, and weight metrics, with sampling locations selected based on suitable environmental conditions.
RUTH FALLS REBUILD: FISH ENTRAINMENT STUDY FIELD PLAN Field Program March 24, 2022
AI summary This document outlines the field program for the RUTH FALLS REBUILD Fish Entrainment Study, conducted on March 24, 2022. It focuses on assessing fish entrainment impacts related to the rebuild project.
CI 50518 NSUARB IR-12 Attachment 8 Page 7 of 14 REDACTED (CONFIDENTIAL INFORMATION REMOVED) RUTH FALLS REBUILD: FISH ENTRAINMENT STUDY FIELD PLAN Field Program March 24, 2022
AI summary This document outlines the field plan for the Fish Entrainment Study at Ruth Falls Rebuild, conducted on March 24, 2022. It focuses on assessing the impact of the project on fish populations and their entrainment in the water system.
Fish Identification and Measurements Fish will be taken from each cooler, enumerated, and a subset of 100 YOY gaspereau from the trap will be measured for fork length (to the nearest mm) and weighed (to the nearest 0.1 g). Where greater th...
AI summary Fish from each cooler are enumerated, with a subset of 100 YOY gaspereau measured and weighed. For other species, up to 50 individuals per species are weighed and measured. Most fish are released, while a subsample of large-bodied fish is retained for a mark-recapture experiment.
Mark-Recapture Experiment A mark-recapture experiment will be implemented to estimate capture probability for large-bodied fish caught in the rotary screw trap. A subsample of adult or appropriately sized YoY fish will be marked via fin cl...
AI summary A mark-recapture experiment is proposed to estimate capture probability for large-bodied fish using a rotary screw trap. Fish will be anesthetized, fin-clipped, and released upstream. The experiment involves species such as trout and white perch, and the release location will be coordinated with NS Power.
CI 50518 NSUARB IR-12 Attachment 8 Page 11 of 14 REDACTED (CONFIDENTIAL INFORMATION REMOVED) RUTH FALLS REBUILD: FISH ENTRAINMENT STUDY FIELD PLAN Field Program March 24, 2022 Figure 3.4 Sample Flight Path for Ruth Falls Flowage
AI summary The document outlines a field plan for a fish entrainment study at Ruth Falls, conducted on March 24, 2022. It includes a sample flight path for the study area, with figures illustrating the planned operations.
CI 50518 NSUARB IR-12 Attachment 8 Page 12 of 14 REDACTED (CONFIDENTIAL INFORMATION REMOVED) RUTH FALLS REBUILD: FISH ENTRAINMENT STUDY FIELD PLAN Reporting March 24, 2022
AI summary This document outlines the field plan for a fish entrainment study at Ruth Falls Rebuild, reported on March 24, 2022. The study focuses on assessing the impact of fish entrainment in the area.
4.0 REPORTING The following section outlines the reporting commitments for the Ruth Falls Fish Entrainment Study
AI summary This section outlines the reporting commitments for the Ruth Falls Fish Entrainment Study, detailing the requirements and responsibilities related to the study's documentation and communication.
Field Reports During the baseline fish abundance survey in Ruth Falls Flowage, fish capture data will be reported to DFO at the end of the baseline survey and every two days during the fish entrainment monitoring. If issues arise with the...
AI summary The document outlines the reporting procedures for fish abundance surveys and entrainment monitoring in Ruth Falls Flowage. Data will be reported to DFO and NS Power, including species-specific catch numbers, morphometric data, and daily entrainment estimates. Methods for calculating capture probability and entrainment are also described.
5.0 PROJECT SCHEDULE The proposed schedule for the 2022 Ruth Falls Entrainment Monitoring field program is outlined below. - Preliminary Field Visit for Site Selection May 2022 - Baseline Aerial Shoreline Surveys Week of July 3, 2022 - Bas...
AI summary The 2022 Ruth Falls Entrainment Monitoring field program includes activities such as preliminary site visits, baseline surveys, flowage drawdowns, fish entrainment monitoring, and post-drawdown surveys, scheduled between May and August 2022.
CI 50518 NSUARB IR-12 Attachment 8 Page 14 of 14 REDACTED (CONFIDENTIAL INFORMATION REMOVED) RUTH FALLS REBUILD: FISH ENTRAINMENT STUDY FIELD PLAN References March 24, 2022
AI summary The document outlines a field plan for a fish entrainment study related to the Ruth Falls Rebuild project, referencing information from March 24, 2022. This study is likely part of an environmental assessment to understand the impact of the project on fish populations.
CI 50518 NSUARB IR-12 Attachment 9 Page 1 of 7 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Fisheries and Oceans Canada Pêches et Océans Canada Bedford Institute of Oceanography 1 Challenger Drive P.O. Box 1006, Station P500 Dartmouth, Nova...
AI summary Nova Scotia Power submitted an application for a Fisheries Act authorization for the Sheet Harbour Ruth Falls Dam Refurbishment Phase 2. The proposal includes modifications to the dam and spillways, with potential impacts on fish passage and ecological flows during construction. DFO has identified the application as incomplete or inadequate.
CI 50518 NSUARB IR-12 Attachment 9 Page 5 of 7 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Fisheries and Oceans Canada Pêches et Océans Canada - o Describe post-construction monitoring that will be conducted to evaluate whether fish passag...
AI summary The document requests descriptions of post-construction monitoring for fish passage structures and the purpose of a pipe located below the Ruth Falls Fish ladder. These details are to be submitted to DFO by January 1, 2023, and involve updating a supplemental information document.
Construction - Provide further information on the four day drawdown at Ruth Falls, including whether the discharge below the dam associated with the drawdown would exceed spill conditions at the dam under normal operations, and provide an...
AI summary The text requests detailed information about the construction activities at Ruth Falls, including drawdown scenarios, temporary bridge construction, materials, duration, removal during extreme flow conditions, updated site plans, construction schedules, and fish passage during dewatering or generation.
Wetland and Wetland Fish Habitat Monitoring Plan, Strum, dated February 4, 2022 - Describe how the results from the six monitored wetlands will be extrapolated to other wetlands that are not being monitored as part of this study to inform...
AI summary The document outlines questions regarding the monitoring plan for wetlands and fish habitat, focusing on extrapolation of results, delineation of fish habitat using OHWM, criteria for classifying habitats, and the duration of impacts on wetlands deemed to be fish habitat.
Response to DFO Incomplete Letter Dated May 5, 2022 - Concordance Table DFO Information Request Section in FAA Application Additional Notes, if applicable The revised application for Fisheries Act authorization is to be a complete standalo...
AI summary The document outlines a revised application for Fisheries Act authorization that must be a complete standalone submission, including a concordance table linking required information to sections in the application. It references specific forms and regulations from the Department of Fisheries and Oceans (DFO) and includes notes on submission requirements.
NOVA SCOTIA POWER INCORPORATED SUPPORTING INFORMATION – APPLICATION FOR AUTHORIZATION - FISHERIES ACT – RUTH FALLS DAM REFURBISHMENT SHEET HARBOUR HYDRO SYSTEM July 2023
AI summary Nova Scotia Power Incorporated has submitted supporting information for an application for authorization under the Fisheries Act related to the Ruth Falls Dam Refurbishment at Sheet Harbour Hydro System in July 2023.
Vertical Lift Gate / Control Building Approval: NSECC Approval 2021-2840307-00 NS Power Initial Submission July 12, 2021 NSECC / DFO Letter of Advice Approval Received October 22, 2021 NS Power Amendment Submission July 11, 2022 NSECC Amen...
AI summary NS Power submitted an updated project and environmental description for the Vertical Lift Gate / Control Building Approval, addressing DFO's incomplete letters and assuming previous requests are no longer relevant. The approval process has been completed, and work related to the control building was finished in 2022.
Table 5 - Summary of fish sampled during the 2006/2007 and 2017 stream electrofishing surveys Number Caught Location Site # Species 2006/7 2017 Grant River American eel 2 4 Brown bullhead 1 0 43 Lake chub 0 7 Pearl dace 4 0 White sucker 0...
AI summary Table 5 summarizes fish sampling data from electrofishing surveys conducted in 2006/2007 and 2017, showing changes in species caught at various locations, including Grant River and East River. A physical habitat survey at Site 68 downstream of the Ruth Falls Dam noted substrate composition and habitat types, with details to be found in Table 6.
Table 6 - Quantitative fish habitat data at stream sites near Ruth Falls in 2017. Location Area surveyed (m2 ) Gradient (%) Flow m3/sec Mean. water depth (m) Max. water depth (m) Mean velocity (m/s) Max water velocity (m/s) Grant River, si...
AI summary Table 6 presents quantitative fish habitat data from stream sites near Ruth Falls in 2017, including measurements of area, gradient, flow, water depth, and velocity. Water quality data from the Ruth Falls Headpond and East River show low pH, low TDS, and elevated metals concentrations, with some parameters exceeding guidelines.
CI 50518 NSUARB IR-12 Attachment 10 Page 32 of 591 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Project activities with the potential to impact fish and fish habitat have been identified and discussed in Table 7.
AI summary The document mentions that project activities with potential impacts on fish and fish habitat have been identified and discussed in Table 7, though the content of the table is redacted.
12.2.1 Upstream Fishway Improvements Results of the 3D hydraulic modeling and professional evaluation determined that improvement to the lower non-technical section of the existing fishway should be made to improve passage for species migr...
AI summary The document outlines proposed improvements to an existing fishway to enhance upstream passage for migratory species. Key changes include replacing existing weirs with new concrete structures and relocating a bypass pipe to increase flow. These improvements aim to support a broader range of species, including gaspereau, which is critical for determining fishway effectiveness.
12.2.3 Upstream Eel Passage NS Power engaged Wood and Thaumas Environmental to assess and design upstream eel passage to support the upstream migration of elvers and juvenile eels. It was determined through the evaluation that a separate s...
AI summary NS Power is proposing an eel ramp to facilitate upstream eel passage beyond the existing fishway. The design includes a metal box with a climbing substrate and pumped water, placed outside the upper fishway. Hydraulic modeling confirms the proposed location is suitable for eel access.
CI 50518 NSUARB IR-12 Attachment 10 Page 40 of 591 REDACTED (CONFIDENTIAL INFORMATION REMOVED) results assessment (Appendix G). The ramp will be operated by passing a constant stream of water over the rubber substrate in order to support u...
AI summary The document describes the design and operation of an eel ramp intended to facilitate the upstream movement of juvenile eels. The ramp will be operated annually between April 1st and November 30th and will be installed concurrently with dam construction. The design aims to meet requirements set by the Department of Fisheries and Oceans (DFO) following a May 2022 request.
FISHWAY MODIFICATIONS LIST OF DRAWINGS NOVA SCOTIA POWER DWG NO. DRAWING TITLE ISSUE / REVISION H-096H1-1-620-00-011 FISHWAY MODIFICATIONS - COVER SHEET A H-096H1-1-620-00-012 FISHWAY MODIFICATIONS - GENERAL NOTES A H-096H1-1-620-00-013 FI...
AI summary The document presents a list of drawings related to fishway modifications, including titles, numbers, and revision details. These drawings outline the design and planning aspects of the modifications.
In 2009: - 1082 eels were identified using the bypass - NSP tagged 148 eels, released them upstream the below Malay Falls dam, and detected 40 travelling through the bypass representing 30% efficiency, assuming all remaining eels entered t...
AI summary In 2009, NSP identified 1082 eels using a bypass system, with 30% efficiency in tracking tagged eels. Other fish species were also observed, but the bypass showed low usage by non-migratory species.
Figure 3: Receiver and Release Location Chart Receiver location Lat Lon Headpond1 44.96078 -62.4955 Headpond2 44.95658 -62.4993 Canal1 44.94423 -62.4967 Canal2 44.93929 -62.4962 Main River1 44.93088 -62.5017 Main River2 44.92724 -62.5061 E...
AI summary The text provides a chart with geographic coordinates for various locations, including headponds, canals, and a main river, as well as a reference to a redacted regulatory document related to CI 50518 NSUARB IR-12 Attachment 10.
1. Model Results of Scenario S1 with 65 cfs from the gates Figure S1-1: Plan view of the Water Surface Velocities Figure S1-2: Plan view of the Mid-Surface Velocities Figure S1-3: View of the Bottom Velocities Figure S1-4: Close up view of...
AI summary This section presents model results for Scenario S1 with 65 cfs from the gates, including multiple figures depicting velocity vectors at various locations such as the fishway area, downstream of the gates, and different sections of the channel.
3. Model Results of Scenario S3 with 925 cfs from the gates Figure S3-1: Plan view of the Water Surface Velocities Figure S3-2: Plan view of the Mid-Surface Velocities Figure S3-3: View of the Bottom Velocities Figure S3-4: Zoom-in view of...
AI summary This section presents model results for Scenario S3, which involves a flow rate of 925 cfs from the gates. The document includes multiple figures depicting velocity vectors at various locations within the water system, such as the fishway area, downstream of the gates, and different sections of the channel.
Introduction Nova Scotia Power (NSP) has requested that CBCL Limited (CBCL) conduct 3D Computational Fluid Dynamics (CFD) hydraulic modelling (3D modelling) for the postrefurbished downstream conditions and proposed changes at the Ruth Fal...
AI summary Nova Scotia Power has requested that CBCL Limited conduct 3D Computational Fluid Dynamics (CFD) hydraulic modelling for the Ruth Falls Dam post-refurbishment and proposed changes, which were evaluated by Thaumas Environmental Consultants Ltd.
Ruth Falls Dam – River Fish Passage Modeling THAUMAS ENVIRONMENTAL CONSULTANTS FEBUARY 10, 2023
AI summary The document is titled 'Ruth Falls Dam – River Fish Passage Modeling' and was prepared by THAUMAS ENVIRONMENTAL CONSULTANTS on February 10, 2023. It focuses on environmental consulting related to fish passage modeling at the Ruth Falls Dam.
Fishway Layout and Operation The Ruth Falls concrete fishway passes fish well based on the modeling and observations and does not need any modifications. Measurements taken showed some pools had a slightly larger drop than others, but this...
AI summary The Ruth Falls concrete fishway is functioning well for fish passage, with measurements indicating it operates within acceptable parameters. Some variations in pool depth are due to plugged drain holes or material buildup, which will be addressed during maintenance. The notch design supports effective fish passage, and proper water depth must be maintained.
Current flow requirements The current fishway and flows were modeled with the minimum depth over the concrete fishway notches of 1 ft, the minimum fishway flow of 6 cfs, the minimum louvre flow of 29 cfs, and the stoplog leakage and spill...
AI summary The current flow requirements for the fishway and related structures are modeled with specific minimum flow rates, including fishway flow, louvre flow, and stoplog leakage. The new dam will not have leakage along this section, and the increased flow from stoplog leakage is accounted for in the gate release.
Changes to the flow pattern The current fishway flow does not provide significant attraction flows on it own. The stoplog leakage along the fishway channel at the toe of the dam does not add enough flow to significantly improve attraction,...
AI summary The current fishway design is inadequate for attracting fish due to poor flow patterns and turbulence. A redesign is proposed with 11 new weirs and optimized gate flows (20 cfs, 40 cfs, and 5 cfs) to improve attraction and reduce turbulence for fish migration.
American Eels American eels live in both the estuary and the freshwater. Access to the freshwater is needed as most of the females develop in freshwater habitats. Some of the eels will move in and out of the estuary several times during th...
AI summary The document discusses the habitat of American eels, focusing on their movement between estuaries and freshwater. It details the design of eel tiles with two peg sizes to accommodate eels of different lengths, referencing a study by Berry & Escott Ltd. (2020).
S1: 6 cfs from the fishway, 29 cfs from the louvres outfall, 65 cfs from the gates This flow scenario has the best passage for gaspereau, trout, grilse, and eels, but has barely enough water depth for the larger salmon. Figure 7: S1 routes...
AI summary This flow scenario, labeled S1, provides optimal passage for gaspereau, trout, grilse, and eels, but water depth is insufficient for larger salmon. The scenario includes flows of 6 cfs from the fishway, 29 cfs from the louvres outfall, and 65 cfs from the gates.
Trout Trout are much smaller than the salmon so have a weaker swimming ability. They will have a hard time getting through the fast flows on the bedrock sills. About 50% of 200 mm trout will be able to pass through the green route, 12.5% t...
AI summary Trout have difficulty navigating fast flows on bedrock sills, with only 50% of 200 mm trout able to pass through the green route, 12.5% through the yellow route, and 2.5% through the orange route. Larger Sea Trout have better passage success, and the main route is indicated by white arrows in Figure 9.
S2: 6 cfs from the fishway, 29 cfs from the louvre outfall, 165 cfs from the gates This scenario has worse passage for gaspereau, trout, grilse, and eels, due to higher velocities, but better passage for multi-sea-year salmon, as the water...
AI summary This scenario (S2) results in worse fish passage for gaspereau, trout, grilse, and eels due to higher velocities, but better passage for multi-sea-year salmon as water depth increases. A figure illustrates the S2 routes for these species based on velocities 0.2 m from the bottom.
Elvers The water velocities over the sills are too fast for elvers. Any passage will be along the very edge in shallow areas or back eddies.
AI summary The water velocities over the sills are too fast for elvers, causing them to move along the edges in shallow areas or back eddies, which may impact their passage.
multi-sea-year Salmon Multi-Sea-Year salmon will have 50% passage to the dam. Over the first sill fish must pass through water with velocities up to 2.5 m/sec for 20 m in the model, but with unknown distance from the downstream resting are...
AI summary The document discusses the passage of multi-sea-year salmon through a dam, highlighting the challenges posed by water velocities. Fish must navigate high-velocity water over two sills, with concerns about the distance to downstream resting areas. The velocity data from various outflow points indicates that passage is not feasible due to high speeds.
Introduction Nova Scotia Power (NSPI) has requested an assessment of the existing downstream and upstream passage and a concept design be developed for changes needed to improve passage and to work with the proposed refurbished dam at Ruth...
AI summary Nova Scotia Power (NSPI) has requested an assessment of fish passage improvements at Ruth Falls, including a concept design for changes to the proposed refurbished dam. The report outlines upstream fish passage modifications and refers to more detailed reports on downstream passage upgrades and related issues.
Upstream passage The fishway at Ruth Falls dam is a pool and weir fishway with two distinct sections. The upper section is a concrete fishway with 1 ft drops between pools, the pools are 8 ft wide by 10 ft long, each pool is 2 ft deep at t...
AI summary The fishway at Ruth Falls dam consists of two sections: an upper concrete fishway with specific dimensions and flow requirements, and a lower channel fishway section. The upper section includes pools, notches, and a fish trap, while the lower section is cut into bedrock with concrete weirs.
Pool and Wier fishway design background Pool-and-weir fishways are very sensitive to water level fluctuations at both the upstream and downstream ends. In these fishways, low tailwater levels will result in a high drop out the entrance not...
AI summary Pool-and-weir fishways are sensitive to water level fluctuations, which can affect fish passage by altering velocities, turbulence, and water depths. Proper water levels are essential to maintain effective fish attraction flows and resting areas.
CI 50518 NSUARB IR-12 Attachment 10 Page 266 of 591 REDACTED (CONFIDENTIAL INFORMATION REMOVED) body length of the fish requiring passage. So, the 1ft depth is the minimum for multi-sea year salmon. It is very important that the fishways o...
AI summary The document discusses the design of fishways at NSPI sites, focusing on their suitability for different fish species. It highlights that salmon fishways were originally designed for anadromous salmon, but other species like gaspereau and smelt require modifications such as lower drops between pools and more resting areas due to differences in swimming endurance and behavior.
The Ruth Falls upper concrete fishway At Ruth Falls the water elevation in the pool below the notch is designed to be at the level of the notch crest when there is a 1ft deep flow in the notch. This is the proper operational water depth fo...
AI summary The Ruth Falls upper concrete fishway is designed to maintain a 1ft flow depth through the notches to ensure proper fish passage. Adjustments to the notches may be made if monitoring indicates insufficient resting areas for weaker swimming fish, though current modeling and observations suggest the design is effective as is.
The lower fishway channel and entrance The current attraction to the fishway entrance is poor with the louver flow at a minimum of 29cfs coming out at right angles to the river flow and the water from the spillway aligned with the river fl...
AI summary The fishway entrance has poor attraction due to misaligned flows, causing fish to collect away from the fishway. Additional flows from spillways contribute to turbulence, negatively affecting fish passage. The new dam will relocate these flows to spill gates, potentially improving fishway conditions. Eel passage is limited to larger eels due to velocity constraints.
CI 50518 NSUARB IR-12 Attachment 10 Page 269 of 591 REDACTED (CONFIDENTIAL INFORMATION REMOVED) It is preferable to have the fishway entrance flow at least 10% to 15 % of the river flow, if possible, to attract the fish. The upper concrete...
AI summary The document discusses the optimal fishway entrance flow, recommending 10% to 15% of river flow to attract fish. At minimum gate flow, the fishway provides up to 39% of total flow, and during higher flows, it can still meet the 10% criteria.
Additional fish passage for eels One species that cannot use the fishway effectively are the smaller American eels. Having the louver flow moved to the fishway as attraction flow, the river flow currents will lead the majority of the eels...
AI summary The document discusses the challenges faced by smaller American eels in using the fishway effectively, particularly near the tide at Ruth Falls. It outlines design considerations for an eel pass to accommodate the 0+ year class and highlights features such as drowned weirs, concrete fishways, and drain holes that facilitate eel passage.
CI 50518 NSUARB IR-12 Attachment 10 Page 270 of 591 REDACTED (CONFIDENTIAL INFORMATION REMOVED) orifices vs the overflow weirs in the concrete transition channel. This will ensure quick passage through a barrier free transition channel to...
AI summary The document discusses the design of a fish passage system, including orifices, overflow weirs, and a louver outflow pipe. It mentions the use of a concrete transition channel and a 3% slope leading to a 6.45ft drop into a 4ft deep pool, which complies with USFW guidelines for safe downstream passage.
Summary This completes the full loop of fish passage from the upstream river passage routes, the fishway sections and the downstream louver system discharging between the two fishway sections to provide good attraction flow to the fishway...
AI summary The summary describes the completion of fish passage improvements, including new fishway weirs, an eel pass, and modifications to the downstream louver system to ensure effective passage for all fish species. The figure illustrates the location of these changes along the spillway and fishway channel.
CI 50518 NSUARB IR-12 Attachment 10 Page 271 of 591 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Figure 3: The overall layout of the fish passage facilities
AI summary The document includes a figure depicting the layout of fish passage facilities, which is part of a regulatory proceeding in Nova Scotia. The figure is labeled as confidential and has been redacted.
1. Introduction Nova Scotia Power Inc (NSPI) requested a condition assessment of the louver system which forms a part of the fish diversion structure at the upstream end (entrance) of the power canal at Ruth Falls Dam. NSPI also requested...
AI summary Nova Scotia Power Inc (NSPI) has requested a condition assessment of the louver system at Ruth Falls Dam and a concept design for improvements to enhance its effectiveness in bypassing silver stage American Eels.
CI 50518 NSUARB IR-12 Attachment 10 Page 289 of 591 REDACTED (CONFIDENTIAL INFORMATION REMOVED) APPENDIX J – UPSTREAM EEL PASSAGE ASSESSMENT
AI summary This document presents Appendix J, titled 'Upstream Eel Passage Assessment,' which is part of a regulatory proceeding. The content is redacted and labeled as confidential, suggesting it contains sensitive information related to environmental assessments or regulatory considerations.
CI 50518 NSUARB IR-12 Attachment 10 Page 290 of 591 REDACTED (CONFIDENTIAL INFORMATION REMOVED) To: Kailey Osborne, BMgmt, EP Environmental Scientist Nova Scotia Power January 31, 2023 Re: Concept Design Report - Upstream Eel Passage at th...
AI summary A concept design report regarding upstream eel passage at the proposed refurbished dam at Ruth Falls is being addressed to Kailey Osborne of Nova Scotia Power. The report is part of a regulatory proceeding and involves environmental considerations.
1. Introduction NSPI requested a concept design be developed for upstream eel passage at the proposed refurbished dam at Ruth Falls. This is an update of the November 2020 report.
AI summary NSPI requested a concept design for upstream eel passage at the proposed refurbished dam at Ruth Falls, updating the November 2020 report.
4.1 General A modern eel pass will be an effective option for upstream passage of eels at the re-constructed Ruth Falls dam. The location of the eel pass entrance at Ruth Falls is dependent on the flow patterns along the bottom below the r...
AI summary A modern eel pass is proposed for upstream passage of eels at the reconstructed Ruth Falls dam, with its location depending on flow patterns below the dam under different spill flow regimes.
4.3 Concept Design As previously noted, for upstream eel passage at the refurbished Ruth Falls dam, it is recommended to use a modern eel pass. The modern eel pass will consist of a covered linear metal, plastic or wooden channel lined wit...
AI summary The document outlines the recommended design for an eel pass at the refurbished Ruth Falls dam, emphasizing a modern enclosed pass with specific flow modifications and structural adjustments to improve upstream eel passage. The design incorporates guidance from USFW and includes details on materials and layout.
4.4 Design Criteria To meet the USFW service recommendations, the final design will include: - Construction Materials: - o Ramps, pools, and supporting structural elements will be built of rust-resistant metal (typically aluminum) or UV-st...
AI summary The design criteria for the eel ramp include the use of rust-resistant materials, secure covers, entrance specifications, climbing substrate, and exit elevation to ensure effective eel passage and minimize predation.
REDACTED (CONFIDENTIAL INFORMATION REMOVED) CI 50518 NSUARB IR-12 Attachment 10 Page 300 of 591 Ruth Falls Dam Refurbishment S 35(2)(b) Fisheries Act Authorization Monitoring Plan
AI summary The document outlines a monitoring plan related to the Ruth Falls Dam Refurbishment under the Fisheries Act Authorization, specifically referencing S 35(2)(b). The plan includes visual elements, though the content is partially redacted.
CI 50518 NSUARB IR-12 Attachment 10 Page 305 of 591 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Ruth Falls Dam Refurbishment S 35(2)(b) Fisheries Act Authorization Monitoring Plan
AI summary This document outlines a monitoring plan for the Ruth Falls Dam Refurbishment under the Fisheries Act Authorization S 35(2)(b). The plan is part of a regulatory proceeding and includes a redacted page with a visual element.
CI 50518 NSUARB IR-12 Attachment 10 Page 306 of 591 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Ruth Falls Dam Refurbishment S 35(2)(b) Fisheries Act Authorization Monitoring Plan
AI summary This document outlines a monitoring plan for the Ruth Falls Dam Refurbishment under the Fisheries Act Authorization S 35(2)(b). It includes a visual element, likely a diagram or image related to the monitoring process.
3.3 TRIBUTARY MONITORING During the fish rescue, NS Power will conduct ground truthing to confirm any tributary locations on Ruth Falls Headpond using the results of a desktop exercise identifying tributaries depicted on 1:50,000 mapping....
AI summary NS Power will conduct field assessments of tributaries near Ruth Falls Headpond during a fish rescue operation, including ground truthing, connectivity assessments, and documentation of physical features such as pools and bank dimensions.
CI 50518 NSUARB IR-12 Attachment 10 Page 312 of 591 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Ruth Falls Dam Refurbishment S 35(2)(b) Fisheries Act Authorization Monitoring Plan
AI summary The document outlines a monitoring plan related to the Ruth Falls Dam Refurbishment under the Fisheries Act Authorization S 35(2)(b). It includes a redacted image, suggesting the plan may involve environmental monitoring or compliance measures.
3.7 WETLANDS As part of the 2007 relicensing of the Sheet Harbour Hydro System, a qualified wetland consultant was contracted to complete a wetland and littoral zone vegetation survey on Ruth Falls Headpond. Twentyone (21) wetlands that we...
AI summary During the 2007 relicensing of the Sheet Harbour Hydro System, a wetland survey identified 21 wetlands near the Ruth Falls Headpond. Comparing this data with current provincial wetland GIS data, only one wetland on the west side of the Ruth Falls Dam was not identified.
Table 4: Wetlands Found Within the Littoral Zone of Ruth Falls Headpond. Wetlands 3,5,6,15,17,19 are highlighted as they have been selected for Wetland Monitoring as described below. Wetland ID Number Wetland Type Wetland Description 1 Con...
AI summary The document outlines the results of a wetland survey and an ACCDC search conducted near Ruth Falls Headpond. Wetlands 3, 5, 6, 15, 17, and 19 were selected for monitoring. The ACCDC search found no rare or endangered species within the immediate area of the headpond, though some rare species were noted nearby but not expected to be impacted by drawdown activities.
3.7.1 Wetland Monitoring While no permanent long-term alterations to the wetlands on Ruth Falls Headpond are anticipated, NS Power proposes to contract a third-party qualified wetland consultant to develop and execute a wetland monitoring...
AI summary NS Power proposes to monitor wetland changes at Ruth Falls Headpond by contracting a third-party consultant. They plan to use a previously approved monitoring plan from a similar project at Tusket Main Dam as a basis for this effort, with results from the prior project indicating minimal long-term impacts.
CI 50518 NSUARB IR-12 Attachment 10 Page 321 of 591 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Ruth Falls Dam Refurbishment S 35(2)(b) Fisheries Act Authorization Monitoring Plan - ES qualified staffwill conduct an immediate assessment of...
AI summary This document outlines the monitoring plan for the Ruth Falls Dam Refurbishment under the Fisheries Act. It details procedures for assessing fish passage impacts, notifying DFO, and implementing corrective actions if issues are identified.
5.4 UPSTREAM EEL RAMP MONITORING The eel ramp will require monitoring and maintenance to ensure it is operating as designed. Operations will complete weekly checks on the eel ramp to ensure it is free of debris by opening up the locked box...
AI summary NS Power will monitor and maintain the eel ramp to ensure it functions as intended, including weekly checks for debris and damage, and will conduct a study in 2025 to assess elver abundance using a fyke net near the ramp entrance.
5.5 REPORTING A post-construction monitoring report will be provided to DFO by January 1 of each of 2026 and 2027 Reporting will include: - Results of upstream escapement monitoring. - Results of daily and weekly inspections. - Results of...
AI summary A post-construction monitoring report will be submitted to DFO in 2026 and 2027, including results of upstream escapement monitoring, inspections, assessments, maintenance flow records, and any adjustments made to fish passage structures and maintenance flows.
YoY Gaspereau Monitoring Two locations (Approximately 1/3 and 2/3 of the wetted width) will be selected for monitoring YoY gaspereau using ichthyoplankton nets (bongo nets) with a 1/8-inch mesh (3 mm) mesh, similar to the method conducted...
AI summary The document outlines a monitoring plan for YoY gaspereau using ichthyoplankton nets on the Gaspereau River. Two locations will be sampled using a 3-mm mesh net, similar to the 2021 Tusket River project. Sampling will occur at specific times of day, with flow meters used to calculate water volume and fish density. NS Power acknowledges potential bias due to limited sampling hours.
Mark-Recapture Experiment A mark-recapture experiment will be implemented to estimate capture probability for fish caught in the fyke nets. A subsample of adult or juvenile fish will be marked via fin clip and released upstream at a suitab...
AI summary A mark-recapture experiment will be conducted to estimate capture probability for fish caught in fyke nets. Fish will be marked via fin clip and released upstream, with the release location determined in coordination with NS Power. Species targeted include smallmouth bass, white perch, and others.
CI 50518 NSUARB IR-12 Attachment 10 Page 336 of 591 REDACTED (CONFIDENTIAL INFORMATION REMOVED) RUTH FALLS REBUILD: FISH ENTRAINMENT STUDY – FIELD PLAN Field Program November 12, 2022 Figure 3.3 Sample Flight Path for Ruth Falls Flowage
AI summary This document outlines a field plan for the Ruth Falls Rebuild Fish Entrainment Study conducted on November 12, 2022. It includes a sample flight path for the Ruth Falls Flowage, indicating the scope and methodology of the study.
5.0 PROJECT SCHEDULE The proposed schedule for the 2024 Ruth Falls Entrainment Monitoring field program is outlined below. - Preliminary Field Visit for Site Selection (Completed) June 2022 - Baseline Aerial Shoreline Surveys Early July 20...
AI summary The project schedule outlines key activities for the 2024 Ruth Falls Entrainment Monitoring field program, including site selection, baseline surveys, flowage drawdown, and fish entrainment monitoring, with specific timelines for each activity.
REFERENCES - Daborn, G.R. and M.Brylinsky 2003. Fish Population Studies of the Avon Estuary, Pesaquid Lake and Lower Avon River. Acadia Centre for Estuarine Research Publication No. 76 - O'Gorman, R. 1983. Distribution and abundance of lar...
AI summary The references section lists several academic and technical publications related to fish population studies and fish entrainment, including a 2022 report on the Tusket Dam refurbishment. These sources are likely used for environmental impact assessments or regulatory considerations.
CI 50518 NSUARB IR-12 Attachment 10 Page 340 of 591 REDACTED (CONFIDENTIAL INFORMATION REMOVED) APPENDIX M – WETLAND MONITORING PLAN
AI summary This document outlines an appendix to a regulatory proceeding, specifically Appendix M, which details a Wetland Monitoring Plan. The content is redacted, indicating that sensitive or confidential information has been removed.
CI 50518 NSUARB IR-12 Attachment 10 Page 341 of 591 REDACTED (CONFIDENTIAL INFORMATION REMOVED) December 14, 2022 Ms. Kailey Osborne Nova Scotia Power Inc. 1223 Lower Water St. Halifax, NS B3J 3S8 Dear Ms. Osborne, Re: Wetland and Wetland...
AI summary A letter dated December 14, 2022, addressed to Ms. Kailey Osborne of Nova Scotia Power Inc., regarding a Wetland and Wetland Fish Habitat Monitoring Plan for the Ruth Falls Reservoir in Sheet Harbour, NS.
Wetlands Initial wetland delineation was undertaken along the shores of the Reservoir during the Vegetation Surveys at the Sheet Harbour Hydroelectric System completed by Jacques Whitford (JW) in 2007 (JW, 2007). As a result of this deline...
AI summary Initial wetland delineation was conducted along the shores of the Reservoir during the Vegetation Surveys at the Sheet Harbour Hydroelectric System in 2007 by Jacques Whitford (JW), identifying 21 wetlands contiguous with the headpond.
WETLAND MONITORING The wetlands, as identified by JW (2007), provided the initial wetland assessment information; Strum has relied on this previously collected data to select and complete a monitoring assessment on six of these identified...
AI summary The text discusses the selection of six wetlands for monitoring based on criteria such as distribution, wetland types, and hydrological factors. The monitoring activities include baseline assessments and a pre-construction assessment.
Table 2: Wetland Monitoring Parameters and Methods of Assessment Monitoring Parameter Methods of Assessment Depth to groundwater will be measured in monitoring wells. Standing water depth measurements will be noted within the existing wetl...
AI summary Table 2 outlines the parameters and methods for monitoring wetlands, including hydrology, vegetation, and soils. It details how depth to groundwater, standing water, and vegetation cover will be assessed, along with the use of photographs for future comparison. The table also references the Wetland Functional Assessments (WESP-AC) for addressing non-native species.
Review of Fish Sampling Results A review of fish sampling conducted by NSPI was completed for all data available prior to the commencement of monitoring. The review involved data compilation of fish species and abundance,
AI summary A review of fish sampling conducted by NSPI was completed for all data available prior to the commencement of monitoring, involving the compilation of fish species and abundance data.
Google Earth Pro : https://www.google.com/earth/download/gep/agree.html Provincial Landscape Viewer : https://nsgi.novascotia.ca/plv/ 2 For most wetlands, completing this office data form will require 1-2 hours. For a list of functions to...
AI summary This document provides information about wetland evaluation tools, including links to Google Earth Pro and the Provincial Landscape Viewer, and outlines the functions and codes used in the WESP-AC model for assessing wetland characteristics and ecological functions.
CI 50518 NSUARB IR-12 Attachment 10 Page 365 of 591 REDACTED (CONFIDENTIAL INFORMATION REMOVED) 3 # Indicators Condition Choices Data Definitions/Explanations 29 100 to 1000 hectares. 1 30 >1000 hectares. [This is nearly always the answer...
AI summary The table discusses indicators related to the distance from an Area of Assessment (AA) to a large vegetated tract, with specific conditions for different sizes of vegetated areas. It references the Fundy Model Forest Project and provides measurement guidelines using Google Earth Pro.
CI 50518 NSUARB IR-12 Attachment 10 Page 373 of 591 REDACTED (CONFIDENTIAL INFORMATION REMOVED) A B C D E Springs are known to be present within the AA, or if groundwater levels have been monitored, that has demonstrated that groundwater p...
AI summary The document discusses the assessment of a site (AA) based on groundwater discharge, slope, and internal gradient. It outlines conditions for identifying the presence of springs, groundwater interactions, and the use of a clinometer to measure internal gradient. The text includes ecological indicators and habitat types associated with the area.
Google Earth Pro : https://www.google.com/earth/download/gep/agree.html Provincial Landscape Viewer : https://nsgi.novascotia.ca/plv/ 30 For most wetlands, completing this office data form will require 1-2 hours. For a list of functions to...
AI summary The document provides information on completing a data form for wetlands, including the time required, functions to be assessed, and definitions for various indicators. It also includes a map link and a reference to the WESP-AC model and its associated codes and abbreviations.
clusion of indicators for which no spatial data exists in a particular province. Ponded Area Within 1 km. 1000 hectares. [ This is nearly always the answer in relatively undeveloped landscapes. ] 0 "Adjacent" means not separated from the A...
AI summary The text provides definitions and instructions for measuring wetland and surface water areas within 1 km of an area of assessment (AA), including considerations for adjacent upland vegetation and the use of Google Earth Pro for measurement.
CI 50518 NSUARB IR-12 Attachment 10 Page 385 of 591 REDACTED (CONFIDENTIAL INFORMATION REMOVED) A B C D E OF5 Distance to Large The minimum distance from the edge of the AA to the edge of the closest vegetated land (but excluding row crops...
AI summary The text outlines criteria for assessing the distance from an area of interest (AA) to large vegetated tracts, with specific thresholds and scoring based on proximity and separation by various features. It also includes a section on herbaceous uniqueness, defining scoring based on herbaceous vegetation coverage.
Wetland ID: Ruth Falls WL5 Date: July 4, 2022 Observer: Darcy Kavanagh & Angus Doane Latitude & Longitude (decimal degrees): 44.981186° & -62.499067°
AI summary This document provides details about a wetland site identified as Ruth Falls WL5, including its location, date of observation, and the individuals who observed it. It contains geographical coordinates and is part of a regulatory proceeding related to environmental conservation.
CI 50518 NSUARB IR-12 Attachment 10 Page 405 of 591 REDACTED (CONFIDENTIAL INFORMATION REMOVED) 2 3 # Indicators Condition Choices Data Definitions/Explanations 4 OF1 Province Mark the province in which the AA is located by changing the 0...
AI summary The document provides a table with indicators related to wetland evaluation, including province selection and measurement of ponded areas within 1 km of a site. It outlines definitions and instructions for data collection, focusing on spatial data normalization and exclusion criteria.
CI 50518 NSUARB IR-12 Attachment 10 Page 413 of 591 REDACTED (CONFIDENTIAL INFORMATION REMOVED) A B C D E 115 none of the upland edge (invasives apparently absent), or AA has no upland edge. 1 species cannot be identified, answer "none". [...
AI summary The text provides a table with criteria for identifying and classifying wetlands, including upland edges, open water, and surface water percentages. It includes instructions for determining the classification based on specific conditions and percentages.
Scores will appear below after data are entered in worksheets OF, F, and S. See Manual for definitions and descriptions of how scores were computed. Wetland Functions or Other Attributes: Function Score (Normalised) Function Rating Benefit...
AI summary The document presents a scoring system for assessing wetland functions and benefits, with normalized and raw scores for various attributes such as water storage, sediment retention, and habitat support. Scores are grouped into categories like hydrologic, water quality support, and aquatic habitat. The overall habitat rule is not satisfied based on the evaluation.
CI 50518 NSUARB IR-12 Attachment 10 Page 423 of 591 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Cover Page: Basic Description of Assessment WESP-AC version 2 Site Name: Ruth Falls Wetland 15 Investigator Name: Darcy Kavanagh & Angus Doane...
AI summary This document is a wetland assessment form completed on July 4, 2022, for Ruth Falls Wetland 15 near Sheet Harbour, Nova Scotia. The assessment was conducted by Darcy Kavanagh and Angus Doane using the WESP-AC version 2 methodology. The form includes details about the site, the investigators, and the assessment process.
Google Earth Pro : https://www.google.com/earth/download/gep/agree.html Provincial Landscape Viewer : https://nsgi.novascotia.ca/plv/ 2 For most wetlands, completing this office data form will require 1-2 hours. For a list of functions to...
AI summary This document provides information about wetland evaluation tools, including links to Google Earth Pro and the Provincial Landscape Viewer, and outlines the functions and codes used in the WESP-AC model for assessing wetland characteristics and ecological functions.
CI 50518 NSUARB IR-12 Attachment 10 Page 425 of 591 REDACTED (CONFIDENTIAL INFORMATION REMOVED) 3 # Indicators Condition Choices Data Definitions/Explanations 4 OF1 Province Mark the province in which the AA is located by changing the 0 in...
AI summary This table outlines indicators related to wetland evaluation, including the province selection and ponded area within 1 km of an area of assessment (AA). The province is marked as Nova Scotia, and the ponded area is to be measured using specific guidelines.
CI 50518 NSUARB IR-12 Attachment 10 Page 443 of 591 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Cover Page: Basic Description of Assessment WESP-AC version 2 Site Name: Ruth Falls Wetland 17 Investigator Name: Darcy Kavanagh & Angus Doane...
AI summary This document contains a field assessment form for a wetland site named Ruth Falls Wetland 17, conducted on July 5, 2022, by investigators Darcy Kavanagh and Angus Doane. The form includes details such as the site's location, size, and the assessment process.
Google Earth Pro : https://www.google.com/earth/download/gep/agree.html Provincial Landscape Viewer : https://nsgi.novascotia.ca/plv/ 2 For most wetlands, completing this office data form will require 1-2 hours. For a list of functions to...
AI summary This document provides information about wetland evaluation tools, including links to Google Earth Pro and the Provincial Landscape Viewer, and outlines the functions and codes used in the WESP-AC model for assessing wetland characteristics and ecological functions.
CI 50518 NSUARB IR-12 Attachment 10 Page 453 of 591 REDACTED (CONFIDENTIAL INFORMATION REMOVED) A B C D E F25 % of AA with Identify the parts of the AA that still contain surface water (flowing or ponded, open or hidden beneath vegetation)...
AI summary The document provides a table for assessing Aquatic Areas (AA) based on the persistence of surface water during dry periods and the percentage of summertime water shaded by vegetation. It includes guidance for determining these metrics and references various entities involved in the assessment.
Google Earth Pro : https://www.google.com/earth/download/gep/agree.html Provincial Landscape Viewer : https://nsgi.novascotia.ca/plv/ 2 For most wetlands, completing this office data form will require 1-2 hours. For a list of functions to...
AI summary This document provides information about wetland evaluation tools, including links to Google Earth Pro and the Provincial Landscape Viewer, and outlines the functions and codes used in the WESP-AC model for assessing wetland characteristics and ecological functions.
CI 50518 NSUARB IR-12 Attachment 10 Page 465 of 591 REDACTED (CONFIDENTIAL INFORMATION REMOVED) 3 # Indicators Condition Choices Data Definitions/Explanations 4 OF1 Province Mark the province in which the AA is located by changing the 0 in...
AI summary The document provides a table with indicators and condition choices related to wetland assessment, focusing on province selection and ponded area measurements within 1 km of the area of assessment. It outlines normalization criteria and measurement guidelines using Google Earth Pro.
CI 50518 NSUARB IR-12 Attachment 10 Page 473 of 591 REDACTED (CONFIDENTIAL INFORMATION REMOVED) A B C D E 115 none of the upland edge (invasives apparently absent), or AA has no upland edge. 1 species cannot be identified, answer "none". [...
AI summary The document provides a table with criteria for assessing wetland characteristics, including upland edge coverage, wetland type, and surface water presence. Each row outlines conditions and corresponding values for different wetland attributes and associated ecological indicators.
CONCLUSION: Site is not a WSS REDACTED (CONFIDENTIAL INFORMATION REMOVED) Glyceria striata Fowl Manna Grass 20 Osmunda cinnamomea Cinnamon Fern 30 30 Carex spp. Carex 50 Drosera rotundifolia Round-leaved Sundew 15 15 Rhynchospora spp. Beak...
AI summary The conclusion of the proceeding states that the site is not a Wetland Significant Site (WSS). The document includes a table with vegetation data, listing various plant species and their percentages in different plots and months.
Table 1B. Ruth Falls Reservoir - Wetland Monitoring Results Project # 21-7960 Wetland 5 Baseline Baseline HYDROLOGICAL INDICATORS (July 2022) (September 2022) Notes HYDROLOGICAL OBSERVATIONS (POST ALTERATION) Surface water Y/N N Y/N N Surf...
AI summary Table 1B presents wetland monitoring results for the Ruth Falls Reservoir, including hydrological indicators and vegetation data collected in July and September 2022. Key findings include changes in plant coverage and water depth measurements.
Table 1C. Ruth Falls Reservoir - Wetland Monitoring Results Wetland 6 HYDROLOGICAL II NDICATORS Baseline (July 2022) Y/N Baseline (September 2022) Y/N Notes HYDROLOGICA AL OBSERVATIONS (POST ALTE ERATION) Surface water er N Y Surface satu...
AI summary This table presents monitoring results for Wetland 6 at the Ruth Falls Reservoir, including hydrological indicators, baseline data from July and September 2022, vegetation composition, and notes on observations. It provides insights into surface water conditions, soil types, and changes in plant species percentages.
Wetland 15 HYDROLOGICAL INDI CATORS Baseline (July 2022) Y/N Baseline (September 2022) Notes HYDROLOGIC CAL OBSERVATIONS (POST A LTERATION) Surface water N N Y/N Y Surface saturat tion Y Y ter table (<30cm) N N Water stained I N N Drainage...
AI summary The text presents a table with data on wetland conditions, including hydrological indicators, vegetation plots, and soil types. It includes baseline measurements from July and September 2022, along with notes and observations on changes in water levels, drainage patterns, and plant species composition.
Wetland 19 Wetland 19 HYDROLOGICAL INDIC CATORS Baseline (July 2022) Y/N Baseline (September 2022) Y/N Notes HYDROLOGIC CAL OBSERVATIONS (POST A LTERATION) Surface water N Y Surface saturati ion Y Y Dry season wat er table (<30cm) N N Wate...
AI summary The document presents a detailed table assessing the hydrological and vegetation conditions of Wetland 19 in July and September 2022. It includes observations on surface water, drainage patterns, water marks, and changes in vegetation percentages. The data also notes a cracked monitoring well and changes in soil type and precipitation levels.
Wetland Fish Habitat Monitoring Results Project # 21-7960 WETLAND 5 4-Jul-22 6-Sep-22 Weather Sun Sun/Cloud Time 13:15 12:23 Locations Surveyed (OL, LS, BS) All All Air Temperature (degC) 26 22 Water Temperature (degC) 21 15.5 pH 4.93 5.09...
AI summary The Wetland Fish Habitat Monitoring Results Project # 21-7960 provides data from two monitoring visits to Wetland 5 on July 4, 2022, and September 6, 2022. Key findings include water temperatures, pH levels, conductivity, and fish presence probability, with notes on habitat characteristics and environmental conditions.
CI 50518 NSUARB IR-12 Attachment 10 Page 494 of 591 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Wetland Fish Habitat Monitoring Results Project # 21-7960 4-Jul-22 6-Sep-22 Weather Sun Sun/Cloud Time 12:15 11:00 Locations Surveyed (OL, LS,...
AI summary This document provides monitoring results for a wetland fish habitat project, including water and air temperatures, pH levels, conductivity, and other environmental factors recorded on July 4 and September 6, 2022. The data includes details about the wetland's connectivity to a lake, substrate type, and the presence of vegetation and debris.
CI 50518 NSUARB IR-12 Attachment 10 Page 496 of 591 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Wetland Fish Habitat Monitoring Results Project # 21-7960 5-Jul-22 6-Sep-22 Weather Sun Overcast Time 12:15 13:45 Locations Surveyed (OL, LS, B...
AI summary This document provides results from a wetland fish habitat monitoring project conducted between July 5 and September 6, 2022. Key findings include water and air temperatures, pH levels, substrate types, and fish presence at the site. The wetland is described as a peninsula with good habitat on the open water side.
Previous Activities Undertaken by the CMM Stewiacke River: MCG has operated/maintained a Rotary Screw Trap (RST) for the past 5 years in the Stewiacke River, NS and performed marked-recapture studies to estimate the population of Atlantic...
AI summary The CMM has conducted various activities in the Stewiacke and Shubenacadie rivers, including fish population studies, habitat assessments, and monitoring efforts. These activities involve partnerships with DFO and use of multiple sampling methodologies to assess fish species and salmon spawning behavior.
Background: In early 2020 Nova Scotia Power Incorporated (NSPI) began discussions with Millbrook chief and council regarding two dam refurbishment projects in the Sheet Harbour Area (Ruth Falls Dam and Sloane Dam). NSPI and the CMM began d...
AI summary Nova Scotia Power Incorporated (NSPI) initiated discussions with Millbrook First Nation in 2020 regarding dam refurbishment projects. The offsetting plan was developed in collaboration with the MCG, DARFM, and NSSA. The plan was revised in 2021 and 2023 to include additional pre-monitoring activities and a revised offset timeline.
Organization and Partners - CMM/DARFM: Will be the lead proponent of the project and will assist with project activities as listed in the below proposal and will lead the administrative / project management side of the project. DARFM team...
AI summary The project involves CMM/DARFM leading the initiative, with Millbrook First Nation engaging community members and providing input. NSSA will lead physical restoration and build capacity for future work. Collaboration between organizations and the First Nation ensures community involvement and project success.
• Additional CMM Staff: - o Assist with monitoring and restoration activities. - o Provide guidance and oversight.
AI summary The text outlines the additional roles of CMM staff, including assisting with monitoring and restoration activities and providing guidance and oversight.
Objective 2: Pre-offset baseline monitoring: - Pre-offset baseline monitoring will include the repetition of Habitat Suitability Index (HSI) assessments described in Year 1 as well as the following: - o Characterization of the thermal prof...
AI summary Pre-offset baseline monitoring involves repeating HSI assessments and conducting thermal drone surveys and water temperature logging to evaluate river conditions pre-restoration, focusing on thermal profiles and summer temperature changes.
6.0 Project Timeline Table 1 Project deliverables and associated timelines Activities Schedule Continued discussions between the CMM, NSSA, NSPI, and DFO regarding offsetting project requirements. April 2022 to October 2022 Continued updat...
AI summary The document outlines a project timeline for a restoration initiative involving multiple organizations, including the CMM, NSSA, NSPI, and DFO. Key activities include discussions, monitoring, and restoration work, with specific timelines and responsibilities assigned.
Site Map Via NSSA Site Location : 45.9718, -62.6383 Nearest approximate address: 88 W River Rd, Mooseland, NS B0J 2J0 Figure 1 Map of 20,900 m 2 of stream that requires habitat restoration (red), of which the lower section (total sq meter...
AI summary The document provides a site map and location details for a habitat restoration project near Mooseland, NS. It includes a map showing 20,900 m² of stream requiring restoration, with a note about a discrepancy in the legend's area description.
Larger View of project area Figure 2 Red marker indicates approximate area where restoration work will occur in comparison to the community of Sheet Harbour.
AI summary The document provides a visual representation of the project area, highlighting the location of restoration work in relation to the community of Sheet Harbour. A figure is referenced, indicating the approximate area of the project.
8.0 Limitations: The total budget and timelines will be dependent on continued discussions between NSPI, DFO, NSSA and the CMM (DARFM) regarding the offset requirements, as well as ensuring proper oversight and guidance on the work by Mill...
AI summary The project's budget and timeline depend on discussions between NSPI, DFO, NSSA, and CMM regarding offset requirements, potential changes to the Species-At-Risk Act, and variable restoration costs. The plan may be revised if significant changes occur, and the CMM is not responsible for consultation with proponents.
Appendix I NSSA - Habitat Offsetting Proposal See attached document titled "Appendix I - NSSA West River Habitat Offsetting Considerations".
AI summary This section refers to an attached document titled 'Appendix I - NSSA West River Habitat Offsetting Considerations', which discusses habitat offsetting proposals related to the NSSA.
CI 50518 NSUARB IR-12 Attachment 10 Page 535 of 591 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Figure 1 Rock deflectors installed by the Nova Scotia Salmon Association in 2016 in West River Sheet Harbour to promote the establishment of na...
AI summary This document includes images of restoration work conducted by the Nova Scotia Salmon Association in West River Sheet Harbour, showcasing rock deflectors and other structures installed in 2016 to restore fish habitat and promote natural river features.
2.1 Site Description The proposed restoration area had approximate upstream and downstream coordinates of 44°58'22.836" N, 62°38'32.9352" W, and 44°58'16.338" N, 62°38'15.0144" W, respectively. The drainage area at the location was approxi...
AI summary The document describes a site restoration area with specific geographical coordinates and environmental conditions, including forested banks, clear-cut areas, and water levels. It also discusses the calculation of bankfull width using a formula based on watershed size and annual runoff, and references a habitat assessment and historical climate data.
CI 50518 NSUARB IR-12 Attachment 10 Page 538 of 591 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Figure 3 Locations of HSI transects in West River Sheet Harbour.
AI summary This document includes a figure showing the locations of HSI transects in West River Sheet Harbour. The figure is part of a regulatory proceeding document from Nova Scotia and is labeled as confidential.
2.2.2 Cross-section Setup For each HSI, three transects were established by running a tape measure perpendicular to the flow and anchoring it at bankfull width on either side of the river. Measurements were taken working from the left to r...
AI summary This section describes the setup of cross-section measurements for HSI. Transects were established perpendicular to the flow, anchored at bankfull width on either side of the river. Bankfull level was determined by observing features like inflection points, erosion lines, sediment changes, and vegetation.
3.1 Calculated Bankfull Width and Stream Order Using an approximate watershed area of 196.4 km 2 and equation 1, a calculated bankfull width of 15.6 m was derived. Transects were spaced at 2 x the bankfull width such that transects were sp...
AI summary A bankfull width of 15.6 m was calculated for a watershed area of 196.4 km², with transects spaced 31.2 m apart. The first transect was located upstream from a restoration structure, and the stream order was determined as 4th order using the Strahler system.
3.0 Special Areas - 3.1 Managed Areas - 3.2 Significant Areas - Map 3: Special Areas
AI summary This section outlines the structure of special areas, including managed areas, significant areas, and a map illustrating these special areas.
4.0 Rare Species Lists - 4.1 Fauna - 4.2 Flora - 4.3 Location Sensitive Species - 4.4 Source Bibliography
AI summary This section outlines the structure of the Rare Species Lists, including categories for fauna, flora, and location-sensitive species, along with a source bibliography.
Included datasets: Filename Contents RuthFallsWatNS_7716ob.xls Rare or legally-protected Flora and Fauna in your study area RuthFallsWatNS_7716ob100km.xls A list of Rare and legally protected Flora and Fauna within 100 km of your study are...
AI summary The document includes datasets related to rare or legally-protected flora and fauna in and around the study area, including a list of rare freshwater fish from the DFO database.
1.2 RESTRICTIONS The AC CDC makes a strong effort to verify the accuracy of all the data that it manages, but it shall not be held responsible for any inaccuracies in data that it provides. By accepting AC CDC data, recipients assent to th...
AI summary The AC CDC provides data with specific restrictions, including use by trained personnel, limitations on data retention, and disclaimers about data accuracy and completeness. Users must adhere to these restrictions and consult the Data Dictionary for locational uncertainty details.
4.0 RARE SPECIES LISTS Rare and/or endangered taxa (excluding "location-sensitive" species, section 4.3) within the study area listed in order of concern, beginning with legally listed taxa, with the number of observations per taxon and th...
AI summary This section lists rare and endangered species within the study area, excluding location-sensitive species. It includes legally listed taxa, with details on the number of observations and distance from the study area centroid to the closest observation. The data is derived from attached files.
4.3 LOCATION SENSITIVE SPECIES The Department of Natural Resources in each Maritimes province considers a number of species "location sensitive". Concern about exploitation of location-sensitive species precludes inclusion of precise coord...
AI summary The Department of Natural Resources in Maritime provinces identifies certain species as 'location sensitive', and due to concerns about exploitation, precise coordinates are not included. The report indicates which species intersect the study area with 'YES'.
5.0 RARE SPECIES WITHIN 100 KM A 100 km buffer around the study area contains 36085 records of 156 vertebrate and 1362 records of 64 invertebrate fauna; 4288 records of 234 vascular and 2565 records of 122 nonvascular flora (attached: \ ob...
AI summary A 100 km buffer around the study area contains extensive biodiversity records, including rare and endangered species. The data includes 156 vertebrate and 64 invertebrate taxa, as well as various flora species, with details on their proximity to the study site.
Data Report 7716: Ruth Falls Watershed, NS Page 8 of 22 Taxonomic Group Scientific Name Common Name COSEWIC SARA Prov Legal Prot Prov Rarity Rank # recs Distance (km) Prov A Zonotrichia querula Harris's Sparrow Special Concern SNA 1 90.9 ±...
AI summary The document lists various species found in the Ruth Falls Watershed, including their taxonomic group, scientific and common names, conservation status, and rarity rankings. It provides data on the number of records and distances from the province of Nova Scotia.
Data Report 7716: Ruth Falls Watershed, NS Page 10 of 22 Group A Scientific Name Passerella iliaca Common Name Fox Sparrow COSEWIC SARA Prov Legal Prot Prov Rarity Rank S3S4B,S5M # recs 115 Distance (km) 10.5 ± 0.0 Prov NS I Ophiogomphus r...
AI summary The document provides data on two species found in the Ruth Falls Watershed in Nova Scotia: the Fox Sparrow and the Rusty Snaketail. It includes information on their scientific names, conservation status, number of records, and distances from the site.
Data Report 7716: Ruth Falls Watershed, NS Page 11 of 22 Group I Scientific Name Epitheca princeps Common Name Prince Baskettail COSEWIC SARA Prov Legal Prot Prov Rarity Rank S3 # recs 9 Distance (km) 85.4 ± 0.0 Prov NS N Cladonia labrador...
AI summary This page of the Data Report 7716 presents information about two species in the Ruth Falls Watershed, Nova Scotia. It includes scientific names, common names, conservation statuses, and distances from the watershed. The species listed are Prince Baskettail and Labrador Lichen, with details on their rarity and legal protections.
Data Report 7716: Ruth Falls Watershed, NS Page 13 of 22 Taxonomic Group Scientific Name Common Name COSEWIC SARA Prov Legal Prot Prov Rarity Rank # recs Distance (km) Prov N Fuscopannaria ahlneri Corrugated Shingles Lichen S3 100 10.0 ± 0...
AI summary The document lists various species of lichens and mosses in the Ruth Falls Watershed, Nova Scotia, including their scientific names, common names, conservation status, and distances from the site. Several species are noted with S3 or S3S4 rarity rankings, indicating their conservation significance.
Page 15 of 22 Group Scientific Name Common Name COSEWIC SARA Prov Legal Prot Prov Rarity Rank # recs Distance (km) Prov Р Impatiens pallida Pale Jewelweed S2S3 3 $64.0 \pm 7.0$ NS Р Caulophyllum thalictroides Blue Cohosh S2S3 49 $46.4 \pm...
AI summary The document presents a table listing various plant species in Nova Scotia, including their scientific and common names, conservation status, number of records, distance measurements, and provincial rarity rankings. The table includes species such as Pale Jewelweed, Blue Cohosh, and Drummond's Rockcress, along with their conservation statuses and other relevant data.
Page 16 of 22 Group Scientific Name Common Name Case's Ladies'-Tresses COSEWIC SARA Prov Legal Prot Prov Rarity Rank S2S3 # recs Distance (km) Prov NS Р Betula pumila Bog Birch S3 3 $54.8 \pm 0.0$ NS P Cardamine parviflora Small-flowered B...
AI summary The table lists various plant species along with their scientific names, common names, conservation status, and other relevant details. It includes information such as provincial legal protection status, rarity rankings, number of records, and distances in kilometers for each species in Nova Scotia.
Page 17 of 22 Taxonomic Group Scientific Name Common Name COSEWIC SARA Prov Legal Prot Prov Rarity Rank # recs Distance (km) Prov Р Endotropis alnifolia alder-leaved buckthorn S3S4 161 $40.4 \pm 1.0$ NS Р Amelanchier spicata Running Servic...
AI summary The table lists various plant species along with their taxonomic groups, scientific and common names, conservation status, number of records, distance measurements, and provincial information. The data includes details about their rarity and distribution in Nova Scotia.
Data Report 7716: Ruth Falls Watershed, NS Page 18 of 22 Taxonomic Group Scientific Name Common Name COSEWIC SARA Prov Legal Prot Prov Rarity Rank # recs Distance (km) Prov P Platanthera obtusata Blunt-leaved Orchid S3S4 7 15.6 ± 0.0 NS P...
AI summary The document lists various plant species in the Ruth Falls Watershed, Nova Scotia, with their scientific names, common names, and conservation status. It includes details such as the number of records, distance from the watershed, and provincial rarity rankings. The data is part of a broader report on biodiversity in the region.
The following fields of data may be included (and may or may not be populated) for Managed and Biologically Significant Areas. IDENTITY AND DESCRIPTION Field Type Definition msaGIS INT Unique GIS feature identifier msaCode TXT Unique ident...
AI summary The document outlines data fields for Managed and Biologically Significant Areas, including GIS identifiers and classifications. It also references a redacted attachment from a regulatory proceeding.
msaName TXT MSA feature name msaNameFr TXT MSA feature name (French) description TXT Description of the MSA feature notes TXT Additional notes about the MSA feature JURISDICTION / OWNERSHIP Field Type Definition localJuris TXT Mandated age...
AI summary The text presents a table describing various fields related to jurisdiction, ownership, classification, and protected area types, including definitions, legislation, and conservation measures. It outlines different categories of protected areas and conservation sites under the MSA feature type.
In 2009: - 1082 eels were identified using the bypass - NSP tagged 148 eels, released them upstream the below Malay Falls dam, and detected 40 travelling through the bypass representing 30% efficiency, assuming all remaining eels entered t...
AI summary In 2009, 1082 eels were identified using a bypass. NSP tagged 148 eels, released them upstream of Malay Falls dam, and detected 40 passing through the bypass, representing 30% efficiency under a worst-case assumption. The detection method may have underestimated actual efficiency due to limitations in passive detection technology.
Elvers A new elver rampwill be installed as part of the fish ladder upgrades. The structure will be designed to include a trap which will enable NSPI to quantify the daily number of elvers ascending the ladder. This method is similar to th...
AI summary A new elver ramp with a trap will be installed as part of fish ladder upgrades to help NSPI quantify daily elver numbers. This method is similar to sampling conducted on the East River Chester.
American eels Sampling for mature adult eels (silver) will start in September to coincide with a period of low barometric pressure and steady rain. Eels typically travel at night, therefore the trap will be operated and monitored overnight...
AI summary Sampling for mature adult American eels will begin in September, with 30 eels to be anesthetized, tagged with high-resolution transmitters, and released after recovery. Data on size, weight, sex, and general status will be collected to ensure a balanced sample.
CI 50518 NSUARB IR-12 Attachment 10 Page 591 of 591 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Comparison of the data from each receiver will allow to determine for each species, the number of fish that were successfully diverted through...
AI summary The document discusses a study to assess fish movement through a bypass and louver system, including fish diversion, circumvention, and migration. NSPI will report findings to DFO by May 1, 2026.
Description of Proposed Work, Undertaking or Activity x Provide further information on the drawdown at Ruth Falls to describe whether the discharge below the dam associated with the drawdown would exceed spill conditions at the dam that oc...
AI summary The document requests further information regarding the drawdown at Ruth Falls, specifically whether the discharge below the dam during the drawdown would exceed spill conditions that occur under normal operations and by how much.
Current and Proposed Facility Operation - x Provide further information on the low supply level of 27.5 m (90.1') and how that elevation factors into water management (e.g., does NS Power operate to the low supply level of 27.5 m (90.1') d...
AI summary The text requests information about NS Power's operation at a low supply level of 27.5 m (90.1') and the vertical lift gate opening values needed to achieve 65 cfs flow to the East River Sheet Harbour downstream of the dam.
CI 50518 NSUIARB IR-12 Attachment 11 Page 5 of 7 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Pêches et Océans Canada - x Provide the proposed water depth over each weir and the drops between each weir in the existing upper technical fish l...
AI summary The document includes requests from Pêches et Océans Canada for specific measurements and design details related to fish ladders, including water depth over weirs, drops between weirs, and detailed profiles of weirs in the updated lower fish ladder.
REDACTED (CONFIDENTIAL INFORMATION REMOVED) CI 50518 NSUIARB IR-12 Attachment 11 Page 7 of 7 Fisheries and Oceans Canada Pêches et Océans Canada - In this Appendix, NS Power notes that two cameras will be installed in the fish ladder (i.e....
AI summary The document contains a request from NS Power to correct a discrepancy in the number of cameras referenced in the fish ladder application and to describe how the effectiveness of louvers for juvenile fish species will be assessed. The document also outlines the timeline for processing the application and provides contact information.
NOVA SCOTIA POWER INCORPORATED SUPPORTING INFORMATION – APPLICATION FOR AUTHORIZATION - FISHERIES ACT – RUTH FALLS DAM REFURBISHMENT SHEET HARBOUR HYDRO SYSTEM December 2023
AI summary Nova Scotia Power Inc. has submitted supporting information for an application for authorization under the Fisheries Act related to the Ruth Falls Dam Refurbishment at Sheet Harbour Hydro System as of December 2023.
Main Dam Refurbishment Application 19-HMAR-00549 - NS Power Request for Review Submission December 2, 2019 - DFO Request for Additional Information Received January 9, 2020 - NS Power Additional Information Request Submission February 27,...
AI summary The document outlines the timeline and process for the Main Dam Refurbishment Application 19-HMAR-00549, including submissions and responses between NS Power and the Department of Fisheries and Oceans (DFO) regarding the Fisheries Act Authorization (FAA).
Vertical Lift Gate / Control Building Approval: NSECC Approval 2021-2840307-00 - NS Power Initial Submission July 12, 2021 - NSECC / DFO Letter of Advice Approval Received October 22, 2021 - NS Power Amendment Submission July 11, 2022 - NS...
AI summary NS Power submitted an initial application for the Vertical Lift Gate / Control Building project in 2021, with amendments in 2022. The project involves construction in two phases, though phasing is no longer required. This document provides an updated project description to address DFO's incomplete letters and assumes previous letters are no longer relevant.
8.0 COMMUNITY The Project site is located near the community of Sheet Harbour, HRM, Nova Scotia.
AI summary The Project site is located near the community of Sheet Harbour, HRM, Nova Scotia.
Table 6 - Summary of fish sampled during the 2006/2007 and 2017 stream electrofishing surveys Number Caught Location Site # Species 2006/7 2017 Grant River American eel 2 4 Brown bullhead 1 0 43 Lake chub 0 7 Pearl dace 4 0 White sucker 0...
AI summary Table 6 summarizes fish species caught during electrofishing surveys in 2006/2007 and 2017 at Grant River and East River. The data includes species like American eel, brown bullhead, and lake chub, with varying numbers caught in each year. A physical habitat survey was conducted, noting substrate composition, habitat types, and riparian vegetation at Site 68 downstream of the Ruth Falls Dam.
10.2 Wetlands and Rare Species As part of the 2007 relicensing of the Sheet Harbour Hydro System, a qualified wetland consultant was contracted to complete a wetland and littoral zone vegetation survey on Ruth Falls Headpond. A total of tw...
AI summary As part of the 2007 relicensing of the Sheet Harbour Hydro System, a wetland survey identified 21 wetlands near Ruth Falls Headpond. One additional wetland was later identified through GIS data, bringing the total to 22. Six of the 21 wetlands were characterized for vegetative communities.
CI 50518 NSUIARB IR-12 Attachment 12 Page 32 of 576 REDACTED (CONFIDENTIAL INFORMATION REMOVED) In addition to 3D hydraulic modelling, NS Power contracted Wood and Thaumas Environmental consulting firms to complete an evaluation of existin...
AI summary NS Power engaged Wood and Thaumas Environmental to evaluate and improve fish passage at a site, with details provided in Appendix H and illustrated in Figure 4. The evaluation includes recommendations for operational or structural modifications.
CI 50518 NSUIARB IR-12 Attachment 12 Page 36 of 576 REDACTED (CONFIDENTIAL INFORMATION REMOVED) results assessment (Appendix G). The ramp will be operated by passing a constant stream of water over the rubber substrate in order to support...
AI summary The document describes the design and operation of an eel ramp intended to facilitate the upstream movement of juvenile eels. The ramp will be operated annually between April 1st and November 30th and will be installed concurrently with dam construction. NS Power is committed to assessing the effectiveness of the eel ramp through a monitoring and study plan outlined in appendices.
CI 50518 NSUIARB IR-12 Attachment 12 Page 38 of 576 REDACTED (CONFIDENTIAL INFORMATION REMOVED) temporary access roads sit within the drawdown area. On the upstream side, access roads will be placed after the headpond has been drawn down a...
AI summary The text discusses the temporary access roads within the drawdown area and the installation of fish monitoring during construction. It also mentions the non-operation of a salmon trap due to low salmon returns and the request for a variance to the Sheet Harbour Water Approval in 2024.
REFERENCE DESCRIPTION A ×, ×, ×, ×, × ×, ×, ×, ×, ×, ×, ×, × SEAL DEPARTMENTAL APPROVALS SCALE Nova Scotia 200-01 EXISTING CONDITIONS OVERALL SITE PLAN 2020-12-11 С 90% REV. 1 REVIEW SUBMITTAL H-096H1-1631-00-043
AI summary The document contains a table with reference descriptions, dates, and status updates for a site plan approval process in Nova Scotia, including a 90% REV. 1 review submittal dated December 11, 2020.
FISHWAY MODIFICATIONS LIST OF DRAWINGS NOVA SCOTIA POWER DWG NO. DRAWING TITLE ISSUE / REVISION H-096H1-1-620-00-011 FISHWAY MODIFICATIONS - COVER SHEET A H-096H1-1-620-00-012 FISHWAY MODIFICATIONS - GENERAL NOTES A H-096H1-1-620-00-013 FI...
AI summary The document presents a list of drawings related to fishway modifications by Nova Scotia Power Inc. These modifications include general notes, existing conditions, and detailed plans for various fishway components such as the channel fishway, fish bypass, and upstream eel passage.
ISSUED FOR PERMIT 2023-05-05
AI summary The document is a permit issued on May 5, 2023, by Nova Scotia Power Inc. (NSPI) for a specific project. It includes a reference to the Contractor's Quality Control Testing Laboratory (CCTL).
Background This report addresses the request made by Nova Scotia Power (NSP) by email on the 8 th February, 2022, and following discussions. An excerpt is presented below to present the requested scope of work: We have determined a need fo...
AI summary Nova Scotia Power (NSP) requested 3D hydraulic modeling at the Ruth Falls dam to assess the impact of proposed refurbishments, including the installation of vertical lift gates and a new rubber dam, on downstream conditions, particularly the fish ladder entrance.
CI 50518 NSUIARB IR-12 Attachment 12 Page 118 of 576 REDACTED (CONFIDENTIAL INFORMATION REMOVED) - S2: 6 cfs from the fishway, 29 cfs from the louvres outfall, 165 cfs from the gates - S3: 6 cfs from the fishway, 29 cfs from the louvres ou...
AI summary The document provides flow values in cubic feet per second (cfs) for various scenarios (S2 to S7) from different outflow points (fishway, louvres outfall, and gates). It also references figures illustrating existing and re-designed weir and louvres outflow configurations, including configurations with and without rock diversion.
1. Model Results of Scenario S1 with 65 cfs from the gates Figure S1-1: Plan view of the Water Surface Velocities Figure S1-2: Plan view of the Mid-Surface Velocities Figure S1-3: View of the Bottom Velocities Figure S1-4: Close up view of...
AI summary This section presents model results for Scenario S1, focusing on water surface and mid-surface velocities, as well as velocity vectors in various areas of the channel, including the fishway and downstream of the gates. The analysis is supported by multiple figures illustrating velocity patterns at different intervals and locations.
2. Model Results of Scenario S2 with 165 cfs from the gates Figure S2-1: Plan view of the Water Surface Velocities Figure S2-2: Plan view of the Mid-Surface Velocities Figure S2-3: View of the Bottom Velocities Figure S2-4: Close up view o...
AI summary This section presents model results for Scenario S2, which involves 165 cfs from the gates. It includes multiple figures displaying velocity vectors at different areas of the water flow, such as the fishway, downstream of the gates, and the middle and end of the channel.
3. Model Results of Scenario S3 with 925 cfs from the gates Figure S3-1: Plan view of the Water Surface Velocities Figure S3-2: Plan view of the Mid-Surface Velocities Figure S3-3: View of the Bottom Velocities Figure S3-4: Zoom-in view of...
AI summary This section presents model results for Scenario S3, focusing on water surface and mid-surface velocities, as well as velocity vectors in various areas of the channel, including the fishway and downstream of the gates, with detailed visual representations.
5. Model Results of Scenario S5 with 3051 cfs from the gates Figure S5-1: Plan view of the Water Surface Velocities Figure S5-2: Plan view of the Mid-Surface Velocities Figure S5-3: View of the Bottom Velocities Figure S5-4: Zoom-in view o...
AI summary This section presents the model results of Scenario S5 with a flow rate of 3051 cfs from the gates, including multiple figures illustrating velocity vectors at various points in the water channel and fishway areas.
6. Model Results of Scenario S6 with 4308 cfs from the gates Figure S6-1: Plan view of the Water Surface Velocities Figure S6-2: Plan view of the Mid-Surface Velocities Figure S6-3: View of the Bottom Velocities Figure S6-4: Zoom-in view o...
AI summary This section presents model results for Scenario S6, focusing on water surface and mid-surface velocities, as well as velocity vectors in various areas of the channel, including the fishway and downstream of the gates. The results are illustrated through multiple figures showing velocity patterns at different intervals and locations.
Literature and Background Review Thaumas conducted a background review of the current operating conditions, fish passage facilities at Ruth Falls, and fish swimming abilities and behaviour for the species present at the site. Thaumas found...
AI summary Thaumas conducted a review of fish passage conditions at Ruth Falls, concluding that the current fishway operates effectively. However, additional flow may be required to ensure adequate water depth for multi-sea year Salmon passage. The operating licence requires specific flow conditions during certain periods.
Current flow requirements The current fishway and flows were modeled with the minimum depth over the concrete fishway notches of 1 ft, the minimum fishway flow of 6 cfs, the minimum louvre flow of 29 cfs, and the stoplog leakage and spill...
AI summary The document discusses the modeling of current flow requirements for a fishway, including specific flow rates and considerations related to stoplog leakage and spill. It notes that the new dam will not have leakage along the lower fishway channel section.
Changes to the flow pattern The current fishway flow does not provide significant attraction flows on it own. The stoplog leakage along the fishway channel at the toe of the dam does not add enough flow to significantly improve attraction,...
AI summary The current fishway flow is insufficient for attracting fish due to poor design and inadequate leakage. A redesign is proposed, including 11 new weirs and optimized gate flows to improve attraction and reduce turbulence. Flow distribution between three gates is modeled to ensure consistent downstream flow and minimize back eddies.
Passage Depth The next thing to consider is the depth the fish are swimming at, as the flow velocity and patterns change with depth and fish also need a minimum depth for safe passage, which for most fish is a minimum of 1/3 the body lengt...
AI summary The passage discusses fish behavior in relation to water depth and flow velocity, emphasizing the importance of minimum depth for safe passage. It also highlights how fish adjust their depth based on light levels and the challenges they face in crowded environments, such as those near obstructions like dams.
S2: 6 cfs from the fishway, 29 cfs from the louvre outfall, 165 cfs from the gates This scenario has worse passage for gaspereau, trout, grilse, and eels, due to higher velocities, but better passage for multi-sea-year salmon, as the water...
AI summary Scenario S2 results in worse fish passage for gaspereau, trout, grilse, and eels due to higher velocities, although it improves passage for multi-sea-year salmon as water depth increases. Figures 12 and others illustrate these findings.
multi-sea-year Salmon Multi-Sea-Year salmon will have 50% passage to the dam. Over the first sill fish must pass through water with velocities up to 2.5 m/sec for 20 m in the model, but with unknown distance from the downstream resting are...
AI summary The document discusses the passage rates and velocity challenges for Multi-Sea-Year salmon at a dam. Fish must navigate high-velocity water over two sills, with concerns about the distance to downstream resting areas. Velocities are too high for passage at multiple flow scenarios (S4, S5, S6).
Introduction Nova Scotia Power (NSPI) has requested an assessment of the existing downstream and upstream passage and a concept design be developed for changes needed to improve passage and to work with the proposed refurbished dam at Ruth...
AI summary Nova Scotia Power (NSPI) has requested an assessment of fish passage improvements at Ruth Falls, including a concept design for changes to the proposed refurbished dam. The report outlines upstream fish passage modifications and refers to more detailed reports on downstream passage upgrades and related issues.
Upstream passage The fishway at Ruth Falls dam is a pool and weir fishway with two distinct sections. The upper section is a concrete fishway with 1 ft drops between pools, the pools are 8 ft wide by 10 ft long, each pool is 2 ft deep at t...
AI summary The fishway at Ruth Falls dam consists of two sections: an upper concrete fishway with specific dimensions and flow requirements, and a lower channel fishway section. The upper section includes pools, notches, and a fish trap, while the lower section is cut into bedrock with concrete weirs.
The Ruth Falls upper concrete fishway At Ruth Falls the water elevation in the pool below the notch is designed to be at the level of the notch crest when there is a 1ft deep flow in the notch. This is the proper operational water depth fo...
AI summary The Ruth Falls upper concrete fishway is designed to maintain a 1ft water depth in the notches to ensure proper fish passage. Adjustments can be made to reduce turbulence and provide resting areas for weaker swimmers if needed, but current modeling and observations suggest the design is effective as is.
The lower fishway channel and entrance The current attraction to the fishway entrance is poor with the louver flow at a minimum of 29cfs coming out at right angles to the river flow and the water from the spillway aligned with the river fl...
AI summary The fishway entrance has poor attraction due to misaligned flows, causing fish to collect away from the fishway. Additional flows from spillways create turbulence and hinder fish passage. The new dam will eliminate these flows, improving fishway conditions. Eel passage is limited to larger eels that can navigate the fishway velocities.
CI 50518 NSUIARB IR-12 Attachment 12 Page 271 of 576 REDACTED (CONFIDENTIAL INFORMATION REMOVED) It is preferable to have the fishway entrance flow at least 10% to 15 % of the river flow, if possible, to attract the fish. The upper concret...
AI summary The document discusses the optimal flow rate for a fishway entrance, suggesting that it should be at least 10% to 15% of the river flow to attract fish. The current fishway flow of 5.6cfs provides 16% of the combined flow at the entrance, and this percentage can increase to 39% during minimum gate flows, meeting the 10% criteria even during higher river flows up to 390 cfs.
Summary This completes the full loop of fish passage from the upstream river passage routes, the fishway sections and the downstream louver system discharging between the two fishway sections to provide good attraction flow to the fishway...
AI summary The summary describes the completion of fish passage improvements, including new fishway weirs, an eel pass, and modifications to the downstream louver system to ensure effective passage for all fish species. The figure illustrates the location of these changes along the spillway and fishway channel.
1. Introduction Nova Scotia Power Inc (NSPI) requested a condition assessment of the louver system which forms a part of the fish diversion structure at the upstream end (entrance) of the power canal at Ruth Falls Dam. NSPI also requested...
AI summary Nova Scotia Power Inc. (NSPI) requested a condition assessment of the louver system at Ruth Falls Dam and a concept design to improve its effectiveness in bypassing silver stage American Eels.
CI 50518 NSUIARB IR-12 Attachment 12 Page 292 of 576 REDACTED (CONFIDENTIAL INFORMATION REMOVED) To: Kailey Osborne, BMgmt, EP Environmental Scientist Nova Scotia Power January 31, 2023 Re: Concept Design Report - Upstream Eel Passage at t...
AI summary This document is a concept design report related to upstream eel passage at the proposed refurbished dam at Ruth Falls, addressed to Kailey Osborne of Nova Scotia Power.
1. Introduction NSPI requested a concept design be developed for upstream eel passage at the proposed refurbished dam at Ruth Falls. This is an update of the November 2020 report.
AI summary NSPI requested a concept design for upstream eel passage at the proposed refurbished dam at Ruth Falls, updating the November 2020 report.
4.1 General A modern eel pass will be an effective option for upstream passage of eels at the re-constructed Ruth Falls dam. The location of the eel pass entrance at Ruth Falls is dependent on the flow patterns along the bottom below the r...
AI summary A modern eel pass is proposed for upstream passage of eels at the reconstructed Ruth Falls dam, with its location depending on flow patterns below the dam under different spill flow regimes.
4.3 Concept Design As previously noted, for upstream eel passage at the refurbished Ruth Falls dam, it is recommended to use a modern eel pass. The modern eel pass will consist of a covered linear metal, plastic or wooden channel lined wit...
AI summary The document outlines the recommended design for an eel pass at the refurbished Ruth Falls dam, emphasizing a modern enclosed pass with specific flow modifications and structural adjustments to improve upstream eel passage. The design incorporates guidance from USFW and includes details on materials and layout.
1.0 Introduction This monitoring plan outlines NS Power's proposed monitoring activities, and additional avoidance and mitigation measures for the Ruth Falls Dam Refurbishment Project (the Project) as well addresses DFO's request for addit...
AI summary NS Power's monitoring plan for the Ruth Falls Dam Refurbishment Project includes activities related to the drawdown of the headpond and construction measures. It addresses requests from DFO for additional information and outlines proposed monitoring and mitigation activities for 2024.
CI 50518 NSUIARB IR-12 Attachment 12 Page 316 of 576 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Ruth Falls Dam Refurbishment S 35(2)(b) Fisheries Act Authorization Monitoring Plan Figure 1: Plan view and schematic section of a Transect
AI summary This document outlines a monitoring plan for the Ruth Falls Dam Refurbishment under the Fisheries Act Authorization S 35(2)(b). It includes figures illustrating a transect plan view and schematic section.
CI 50518 NSUIARB IR-12 Attachment 12 Page 317 of 576 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Ruth Falls Dam Refurbishment S 35(2)(b) Fisheries Act Authorization Monitoring Plan
AI summary The document outlines a monitoring plan for the Ruth Falls Dam Refurbishment under the Fisheries Act Authorization S 35(2)(b). It includes a visual reference to a page from the document.
3.7 WETLANDS As part of the 2007 relicensing of the Sheet Harbour Hydro System, a qualified wetland consultant was contracted to complete a wetland and littoral zone vegetation survey on Ruth Falls Headpond. A total of 21 wetlands that wer...
AI summary The 2007 relicensing of the Sheet Harbour Hydro System included a wetland survey identifying 21 wetlands near Ruth Falls Headpond. A comparison with current provincial GIS data shows only one wetland on the west side of the Ruth Falls Dam was not previously identified.
CI 50518 NSUIARB IR-12 Attachment 12 Page 318 of 576 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Ruth Falls Dam Refurbishment S 35(2)(b) Fisheries Act Authorization Monitoring Plan 2007 survey. For planning purposes, NS Power will assume t...
AI summary The document discusses the 2007 survey of wetlands at the Ruth Falls Headpond, noting 22 possible wetlands, with 14 being shore bogs. It indicates that the headpond may fluctuate similarly to natural lakes and that no rare or endangered vascular plant species were found in the surveyed wetlands.
CI 50518 NSUIARB IR-12 Attachment 12 Page 325 of 576 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Ruth Falls Dam Refurbishment S 35(2)(b) Fisheries Act Authorization Monitoring Plan
AI summary The document outlines a monitoring plan for the Ruth Falls Dam Refurbishment under the Fisheries Act Authorization S 35(2)(b). It includes a visual reference to a page containing relevant information about the monitoring plan.
REDACTED (CONFIDENTIAL INFORMATION REMOVED) CI 50518 NSUIARB IR-12 Attachment 12 Page 330 of 576 RUTH FALLS REBUILD: FISH ENTRAINMENT STUDY - FIELD PLAN
AI summary This document outlines a field plan for a fish entrainment study related to the Ruth Falls Rebuild project. The study aims to assess the impact of the project on fish populations and their movement.
CI 50518 NSUIARB IR-12 Attachment 12 Page 331 of 576 REDACTED (CONFIDENTIAL INFORMATION REMOVED) RUTH FALLS REBUILD: FISH ENTRAINMENT STUDY – FIELD PLAN Introduction November 12, 2022
AI summary This document outlines the field plan for the Fish Entrainment Study at Ruth Falls Rebuild, introduced on November 12, 2022. It focuses on assessing the impact of fish entrainment and developing strategies to mitigate it.
3.2.4 Mark-Recapture Experiment A mark-recapture experiment will be implemented to estimate capture probability for fish caught in the fyke nets. A subsample of adult or juvenile fish will be marked via fin clip and released upstream at a...
AI summary A mark-recapture experiment is being conducted to estimate fish capture probabilities in fyke nets. Fish will be anesthetized, marked via fin clipping, and released upstream. The release location will be determined in collaboration with NS Power to ensure safety and accessibility.
RUTH FALLS REBUILD: FISH ENTRAINMENT STUDY – FIELD PLAN References November 12, 2022
AI summary The document outlines the field plan for the Ruth Falls Rebuild Fish Entrainment Study, referencing November 12, 2022. It focuses on assessing the impact of fish entrainment during the rebuild project.
Response to DFO Comments, Ruth Falls Reservoir Monitoring Plan May 20, 2022 Ms. Kailey Osborne 7 Shore bog 8 Shore bog 9 Shore bog 10 Shore bog 11 Shore bog 12 Shore bog 13 Shore bog 14 Shore bog 15 Treed shore bog/ treed shore swamp Yes 1...
AI summary The document contains a table listing various ecological features, including 'shore bog' and 'treed shore bog,' with some entries indicating 'Yes' in the third column. It references a 2007 vegetation survey report by Jacques Whitford on the Sheet Harbour Hydroelectric System.
Ordinary High Water Mark (OHWM) will be defined as the ordinary high water level within the reservoir under normal operating conditions. Given that NSPI has some control over water levels, the OHWM is assumed to be the average of the highe...
AI summary The document defines the Ordinary High Water Mark (OHWM) as the average of the highest operating-condition water levels, excluding flood conditions. Fish habitat delineation will occur during baseline surveys relative to OHWM, with further surveys during drawdown and post-construction to assess changes.
CI 50518 NSUIARB IR-12 Attachment 12 Page 347 of 576 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Response to DFO Comments, Ruth Falls Reservoir Monitoring Plan May 20, 2022 Ms. Kailey Osborne
AI summary The response to DFO comments on the Ruth Falls Reservoir Monitoring Plan was provided by Ms. Kailey Osborne on May 20, 2022. The document is part of a regulatory proceeding and includes a redacted section containing confidential information.
Nova Scotia Power Inc. Project #21-7960 Direct Open Lake, Lakeshore (possible) "…Water frequented by fish…on which fish depend on…to carry out their life processes including spawning grounds and nursery, rearing, food supply, and migration...
AI summary The document outlines different zones around Open Lake and Lakeshore in relation to fish habitat, distinguishing between direct, indirect, and not fish habitat areas based on their ecological significance and accessibility to fish, with specific reference to the Federal Fisheries Act.
Wetlands Initial wetland delineation was undertaken along the shores of the Reservoir during the Vegetation Surveys at the Sheet Harbour Hydroelectric System completed by Jacques Whitford (JW) in 2007 (JW, 2007). As a result of this deline...
AI summary Initial wetland delineation was conducted along the shores of the Reservoir during the Vegetation Surveys at the Sheet Harbour Hydroelectric System in 2007 by Jacques Whitford (JW), identifying 21 wetlands contiguous with the headpond.
CI 50518 NSUIARB IR-12 Attachment 12 Page 349 of 576 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Wetland and Wetland Fish Habitat Monitoring Plan, Ruth Falls Reservoir November 18, 2022 Ms. Kailey Osborne Nova Scotia Power Inc. Project # 2...
AI summary This document outlines a wetland and wetland fish habitat monitoring plan for the Ruth Falls Reservoir project, submitted by Nova Scotia Power Inc. on November 18, 2022, as part of a regulatory proceeding.
CI 50518 NSUIARB IR-12 Attachment 12 Page 351 of 576 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Wetland and Wetland Fish Habitat Monitoring Plan, Ruth Falls Reservoir November 18, 2022 Ms. Kailey Osborne Nova Scotia Power Inc. Project # 2...
AI summary This document outlines a wetland and wetland fish habitat monitoring plan for the Ruth Falls Reservoir project, led by Nova Scotia Power Inc. It emphasizes timing of monitoring to reflect changing conditions and the use of baseline data, with a description of monitoring parameters and methodology provided in Table 2.
CI 50518 NSUIARB IR-12 Attachment 12 Page 352 of 576 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Wetland and Wetland Fish Habitat Monitoring Plan, Ruth Falls Reservoir November 18, 2022 Ms. Kailey Osborne Nova Scotia Power Inc. Project # 2...
AI summary This document outlines a wetland and wetland fish habitat monitoring plan for the Ruth Falls Reservoir project, submitted by Nova Scotia Power Inc. on November 18, 2022. The plan is associated with project number 21-7960.
CI 50518 NSUIARB IR-12 Attachment 12 Page 353 of 576 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Wetland and Wetland Fish Habitat Monitoring Plan, Ruth Falls Reservoir November 18, 2022 Ms. Kailey Osborne Nova Scotia Power Inc. Project # 2...
AI summary This document outlines a Wetland and Wetland Fish Habitat Monitoring Plan for the Ruth Falls Reservoir project, submitted by Nova Scotia Power Inc. on November 18, 2022. The plan is part of the project documentation for Project #21-7960.
CI 50518 NSUIARB IR-12 Attachment 12 Page 355 of 576 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Wetland and Wetland Fish Habitat Monitoring Plan, Ruth Falls Reservoir November 18, 2022 Ms. Kailey Osborne Nova Scotia Power Inc. Project # 2...
AI summary The document outlines a wetland and wetland fish habitat monitoring plan for the Ruth Falls Reservoir project, submitted by Nova Scotia Power Inc. on November 18, 2022, under project number 21-7960.
Baseline Monitoring Results Baseline monitoring was conducted on July 4-5, and September 6, 2022. All wetlands were accessed via boat over the Reservoir, and each wetland was accessed successfully, as locations provided by the JW (2007) we...
AI summary Baseline monitoring of wetlands was conducted in July and September 2022 using WESP-AC protocols. Monitoring wells and vegetation plots were installed, and findings were compared to the JW (2007) study. Wetland delineation and fish habitat assessments were carried out, with results detailed in attachments.
Wetland and Wetland Fish Habitat Monitoring Plan, Ruth Falls Reservoir November 18, 2022 Ms. Kailey Osborne Nova Scotia Power Inc. Project # 21-7960 Wetland Open Lake Lakeshore Backshore Wetland 17 Quite shallow all around the wetland Shor...
AI summary This document outlines the Wetland and Wetland Fish Habitat Monitoring Plan for the Ruth Falls Reservoir project. It details observations of wetlands, open lake, lakeshore, and backshore areas, noting substrate types, vegetation, and fish habitat conditions. The report also mentions the use of boats for observations and the impact of forestry on habitats.
CI 50518 NSUIARB IR-12 Attachment 12 Page 358 of 576 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Wetland and Wetland Fish Habitat Monitoring Plan, Ruth Falls Reservoir November 18, 2022 Ms. Kailey Osborne Nova Scotia Power Inc. Project # 2...
AI summary This document outlines a wetland and wetland fish habitat monitoring plan for the Ruth Falls Reservoir project, submitted by Nova Scotia Power Inc. on November 18, 2022. The plan is part of the project documentation for Project #21-7960.
Table 7: Monitoring and Reporting Schedule for Wetland Fish Habitat Monitoring Monitoring Event Fish Habitat Transect Monitoring Desktop Review of Fish Data Reporting Submission to NSECC & DFO Baseline (Completed) ✓ ✓ ✓ Pre-construction 1...
AI summary Table 7 outlines a monitoring and reporting schedule for wetland fish habitat monitoring, detailing events such as baseline, pre-construction, during construction, and post-construction phases, with required activities including transect monitoring, desktop reviews, and reporting to NSECC and DFO.
CLOSURE Thank you for the opportunity to develop this Wetland and Wetland Fish Habitat Monitoring Plan. If you have any questions, please contact us. Thank you, [[email protected]](mailto:[email protected]) [[email protected]](mailto:sduncan...
AI summary The document is a closing statement from a party involved in developing a Wetland and Wetland Fish Habitat Monitoring Plan. It includes contact information for Angus Doane and Natasha Myers, who are environmental scientists.
REDACTED (CONFIDENTIAL INFORMATION REMOVED) CI 50518 NSUIARB IR-12 Attachment 12 Page 369 of 576 ATTACHMENT B WESP-AC FORMS CI 50518 NSUIARB IR-12 Attachment 12 Page 370 of 576 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Cover Page: Basic...
AI summary The text contains a redacted attachment from a regulatory proceeding, including a WESP-AC form for a wetland assessment at Ruth Falls Wetland 3. The form includes details such as the site name, investigator names, and assessment date, but much of the content is redacted.
Google Earth Pro : https://www.google.com/earth/download/gep/agree.html Provincial Landscape Viewer : https://nsgi.novascotia.ca/plv/ 2 For most wetlands, completing this office data form will require 1-2 hours. For a list of functions to...
AI summary This document provides information about wetland evaluation tools, including links to Google Earth Pro and the Provincial Landscape Viewer, and outlines the functions and codes used in the WESP-AC model for assessing wetland characteristics and ecological functions.
CI 50518 NSUIARB IR-12 Attachment 12 Page 380 of 576 REDACTED (CONFIDENTIAL INFORMATION REMOVED) A B C D E Identify the parts of the AA that still contain surface water (flowing or ponded, open or hidden beneath vegetation) even during the...
AI summary The table identifies the parts of an Area of Assessment (AA) that contain surface water during the driest times of the year, with options ranging from none to 95% of the AA containing surface water. It also provides guidance on determining surface water persistence and includes indicators such as fish and beaver.
CI 50518 NSUIARB IR-12 Attachment 12 Page 392 of 576 REDACTED (CONFIDENTIAL INFORMATION REMOVED) 2 STR= Stressors. 16 OF3 Ponded Water & Wetland Within 1 km. The area of wetlands and surface water ponded during most of the growing season t...
AI summary The text outlines criteria for assessing wetlands and vegetated areas within a specific area of assessment (AA), focusing on ponded water, wetlands within 1 km, and the size of the largest nearby vegetated tract or corridor. It includes definitions and instructions for measurement.
Wetland ID: Ruth Falls WL5 Date: July 4, 2022 Observer: Darcy Kavanagh & Angus Doane Latitude & Longitude (decimal degrees): 44.981186° & -62.499067°
AI summary This document provides details about a wetland site identified as Ruth Falls WL5, including its location, date of observation, and the individuals who observed it. It contains geographical coordinates and is part of a regulatory proceeding related to environmental conservation.
CI 50518 NSUIARB IR-12 Attachment 12 Page 420 of 576 REDACTED (CONFIDENTIAL INFORMATION REMOVED) A B C D E 114 F21 Invasive Cover Along Upland Edge Along the wetland-upland boundary, the percent of the upland edge (within 3 m upslope from...
AI summary The text presents a table with environmental assessment criteria for wetlands, including invasive plant cover along upland edges and characteristics of fringe and lacustrine wetlands. It outlines specific conditions and classifications for assessing ecological features.
Google Earth Pro : https://www.google.com/earth/download/gep/agree.html Provincial Landscape Viewer : https://nsgi.novascotia.ca/plv/ 2 For most wetlands, completing this office data form will require 1-2 hours. For a list of functions to...
AI summary This document provides information about wetland evaluation tools, including links to Google Earth Pro and the Provincial Landscape Viewer, and outlines the functions and codes used in the WESP-AC model for assessing wetland characteristics and ecological functions.
CI 50518 NSUIARB IR-12 Attachment 12 Page 440 of 576 REDACTED (CONFIDENTIAL INFORMATION REMOVED) A B C D E 114 F21 Invasive Cover Along Upland Edge Along the wetland-upland boundary, the percent of the upland edge (within 3 m upslope from...
AI summary The text provides a table with environmental assessment criteria for wetlands, including invasive plant cover along upland edges and characteristics of fringe and lacustrine wetlands. It outlines how to evaluate and score these factors based on specific conditions and ecological indicators.
Google Earth Pro : https://www.google.com/earth/download/gep/agree.html Provincial Landscape Viewer : https://nsgi.novascotia.ca/plv/ 2 For most wetlands, completing this office data form will require 1-2 hours. For a list of functions to...
AI summary This document provides information about wetland evaluation tools, including links to Google Earth Pro and the Provincial Landscape Viewer, and outlines the functions and codes used in the WESP-AC model for assessing wetland characteristics and ecological functions.
CI 50518 NSUIARB IR-12 Attachment 12 Page 460 of 576 REDACTED (CONFIDENTIAL INFORMATION REMOVED) A B C D E F24 % of AA Without The percentage of the AA that never contains surface water during an average year (that is, except perhaps for a...
AI summary The document provides a table detailing the percentage of Aquatic Assets (AA) that do not contain surface water during an average year, with different categories based on the percentage range. It also includes notes on the definitions and implications of these percentages, including examples of dimensions for 1 hectare and habitat-related codes.
CI 50518 NSUIARB IR-12 Attachment 12 Page 470 of 576 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Ruth Falls Wetland 19 Darcy Kavanagh & Angus Doane July 5th, 2022 Sheet Harbour 44.957041° -62.502964° Yes 0.056483 100 100 No Yes No 50+ CI 5...
AI summary This document contains a redacted entry for a wetland assessment form related to the Ruth Falls Wetland 19, submitted by Darcy Kavanagh and Angus Doane on July 5, 2022, with geographic coordinates and other data fields. It includes a form for non-tidal wetland data assessment under the WESP-AC version 2 for Nova Scotia wetlands.
Google Earth Pro : https://www.google.com/earth/download/gep/agree.html Provincial Landscape Viewer : https://nsgi.novascotia.ca/plv/ 2 For most wetlands, completing this office data form will require 1-2 hours. For a list of functions to...
AI summary This document provides information about wetland evaluation tools, including links to Google Earth Pro and the Provincial Landscape Viewer, and outlines the functions and codes used in the WESP-AC model for assessing wetland characteristics and ecological functions.
CI 50518 NSUIARB IR-12 Attachment 12 Page 480 of 576 REDACTED (CONFIDENTIAL INFORMATION REMOVED) A B C D E 124 25-50% of the AA never contains surface water. 0 125 50-75% of the AA never contains surface water. 0 126 75-99% of the AA never...
AI summary The table outlines different percentages of the Area of Assessment (AA) that never contain surface water, with corresponding values in column D. It includes conditions for 25-50%, 50-75%, 75-99%, and 99-100% of the AA, with specific instructions for the latter case.
CONCLUSION: Site is not a WSS REDACTED (CONFIDENTIAL INFORMATION REMOVED) CI 50518 NSUIARB IR-12 Attachment 12 Page 490 of 576 Rubus pubescens Dwarf Red Blackberry 20 Sarracenia purpurea Pitcher Plant 10 10 Herbs Vaccinium oxycoccus Bog Cr...
AI summary The conclusion states that the site is not a WSS. The document contains a table with redacted information, listing various plant species and their quantities, which may relate to environmental assessments or conservation efforts.
Wetland 19 Wetland 19 - HYDROLOGICAL INDIC ATORS Baseline (July 2022) Baseline (September 2022) Notes HYDROLOGIC CAL OBSERVATIONS (POST A LTERATION) Y/N Y/N Surface water N Y Surface saturat ter table (<30cm) Y N Y N Water stained le , , N...
AI summary This table details hydrological indicators and vegetation data for Wetland 19, comparing baseline measurements from July and September 2022. It includes surface water observations, drainage patterns, soil depth, and vegetation percentages for various species, indicating changes over time.
Previous Activities Undertaken by the CMM Stewiacke River: MCG has operated/maintained a Rotary Screw Trap (RST) for the past 5 years in the Stewiacke River, NS and performed marked-recapture studies to estimate the population of Atlantic...
AI summary The Community Management Corporation (CMM) has conducted various activities in the Stewiacke and Shubenacadie Rivers, including fish population studies, habitat assessments, and monitoring efforts with the Department of Fisheries and Oceans (DFO). These activities aim to understand and manage Atlantic salmon populations and their habitats.
CI 50518 NSUIARB IR-12 Attachment 12 Page 510 of 576 REDACTED (CONFIDENTIAL INFORMATION REMOVED) River Philip and East River : In the fall of 2016- 2018, the MCG team performed snorkel surveys in over 20 pools to count returning adult Atla...
AI summary The MCG team conducted snorkel surveys in the River Philip and East River between 2016-2018 to count returning adult Atlantic salmon. Additionally, from 2014-2018, MCG performed river restoration work, including installing fish habitat structures, removing barriers to fish passage, and restoring riverbanks in several waterbodies.
Background: In early 2020 Nova Scotia Power Incorporated (NSPI) began discussions with Millbrook chief and council regarding two dam refurbishment projects in the Sheet Harbour Area (Ruth Falls Dam and Sloane Dam). NSPI and the CMM began d...
AI summary In early 2020, NSPI initiated discussions with Millbrook regarding dam refurbishment projects in the Sheet Harbour Area. The CMM, DARFM, and NSSA were involved in planning an offsetting project. The plan has undergone several revisions, including the addition of pre-monitoring activities, changes to the offset timing, and budget adjustments.
• Millbrook: TBD (Consultation team and community members) - o Assist with project activities (planning, monitoring, restoration) - o Participate in meetings. - o Receive training (types tbd). - o Note: this will depend on community intere...
AI summary The text outlines potential roles for the Millbrook consultation team and community members, including assisting with project activities, participating in meetings, and receiving training, though specifics remain to be determined based on community interest.
Objective 2: Pre-offset baseline monitoring: - The pre-habitat offset monitoring work on the West River Sheet Harbour will involve performing habitat suitability assessments following established field methods[2](#page-125-1) . While estim...
AI summary The pre-offset baseline monitoring work on the West River Sheet Harbour involves habitat suitability assessments and monitoring of physical habitat characteristics. The focus is on habitat restoration, including the establishment of natural pools and meander patterns, and the impact of past land use and anthropogenic activities on fish habitat.
CI 50518 NSUIARB IR-12 Attachment 12 Page 515 of 576 REDACTED (CONFIDENTIAL INFORMATION REMOVED) - o Benthic macroinvertebrate surveys - o Wetted depth measurements - o Thalweg depth measurements
AI summary The document text lists several environmental monitoring activities, including benthic macroinvertebrate surveys, wetted depth measurements, and thalweg depth measurements, which are likely related to aquatic resource management.
CI 50518 NSUIARB IR-12 Attachment 12 Page 518 of 576 REDACTED (CONFIDENTIAL INFORMATION REMOVED) - o Measurements taken to determine change to pools and stream meander. - o Document presence of adult and or juvenile Atlantic salmon (and ot...
AI summary The text outlines measurements related to changes in pools and stream meander, as well as documentation of the presence of adult and juvenile Atlantic salmon and other salmonid or fish species in their habitats.
6.0 Project Timeline Table 1 Project deliverables and associated timelines Activities Schedule Continued discussions between the CMM, NSSA, NSPI, and DFO regarding offsetting project requirements. April 2022 to October 2022 Continued updat...
AI summary The document outlines the timeline for a project involving discussions between CMM, NSSA, NSPI, and DFO regarding offsetting project requirements, restoration work, and monitoring activities from 2022 to 2029.
Site Map Via NSSA Site Location : 45.9718, -62.6383 Nearest approximate address: 88 W River Rd, Mooseland, NS B0J 2J0 Edit- Current project location of new structures has yet to be defined as it will require further site assessments by bot...
AI summary The document describes a site map for a habitat restoration project near 88 W River Rd, Mooseland, NS. The project requires further site assessments by CMM and NSSA to define the exact location of new structures. The map shows a 20,900 m2 area of stream requiring restoration, with a note about a discrepancy in the legend.
8.0 Limitations: The total budget and timelines will be dependent on continued discussions between NSPI, DFO, NSSA and the CMM (DARFM) regarding the offset requirements, as well as ensuring proper oversight and guidance on the work by Mill...
AI summary The project's budget and timeline depend on discussions between NSPI, DFO, NSSA, and CMM regarding offset requirements and Mi'kmaw community engagement. Changes to the Species-At-Risk Act could affect the project. Restoration costs are subject to change due to variable material and labor costs, and the offset area has been revised from 5000m2 to 2700m2.
1.0 Preface - 1.1 Data List - 1.2 Restrictions - 1.3 Additional Information Map 1: Buffered Study Area
AI summary The preface section outlines the structure of the document, including data lists, restrictions, and additional information. It also references Map 1, which depicts a buffered study area.
3.0 Special Areas - 3.1 Managed Areas - 3.2 Significant Areas - Map 3: Special Areas
AI summary This section introduces the concept of 'Special Areas' within the regulatory proceeding, outlining subcategories such as 'Managed Areas' and 'Significant Areas' and referencing a map that illustrates these areas.
5.0 Rare Species within 100 km 5.1 Source Bibliography Map 1 . A 100 km buffer around the study area
AI summary This section discusses rare species within a 100 km buffer around the study area, referencing a map and source bibliography. It outlines the geographical scope of the study and provides context for the analysis of rare species in the region.
Plants, Lichens, Ranking Methods, All other Inquiries Sean Blaney Senior Scientist / Executive Director (506) 364-2658 [[email protected]](mailto:[email protected])
AI summary The document provides contact information for Sean Blaney, Senior Scientist and Executive Director at the Atlantic Canada Conservation Data Centre (ACCDC), who is involved in inquiries related to plants, lichens, and ranking methods.
3.2 SIGNIFICANT AREAS The GIS scan identified no biologically significant sites in the vicinity of the study area (Map 3).
AI summary The GIS scan identified no biologically significant sites in the vicinity of the study area, as shown in Map 3.
Nova Scotia Scientific Name Common Name SARA Prov Legal Prot Known within the Study Site? Fraxinus nigra Black Ash Threatened No Emydoidea blandingii Blanding's Turtle - Nova Scotia pop. Endangered Endangered No Glyptemys insculpta Wood Tu...
AI summary The text presents a table listing various species in Nova Scotia, their scientific and common names, their status under the Species at Risk Act (SARA), provincial legal protection status, and whether they are known within the study site. All species listed are either threatened or endangered, but none are known to exist within the study site.
4.4 SOURCE BIBLIOGRAPHY The recipient of these data shall acknowledge the AC CDC and the data sources listed below in any documents, reports, publications or presentations, in which this dataset makes a significant contribution.
AI summary The document outlines the requirement for acknowledging the Atlantic Canada Conservation Data Centre (AC CDC) and the data sources in any publications or reports where the dataset makes a significant contribution.
2 Standley, L.A. 2002. Carex haydenii in Nova Scotia. , Pers. comm. to C.S. Blaney. 4 recs.
AI summary This document entry references a 2002 study by Standley, L.A. on Carex haydenii in Nova Scotia, with four records noted in a personal communication to C.S. Blaney.
Data Report 7716: Ruth Falls Watershed, NS Page 22 of 22 # recs CITATION 1 MacKinnon, D.; Wright, P.; Smith, D. 2014. 2014 Common Tern email report, Eastern Passage, NS. NS Department of Environment. 1 McAlpine, D.F. 1998. NBM Science Coll...
AI summary This document is a data report on the Ruth Falls Watershed in Nova Scotia, listing various records and citations related to biodiversity and natural resources. It includes observations, research, and specimen data from multiple sources and years, focusing on species and ecological data.
msaName TXT MSA feature name msaNameFr TXT MSA feature name (French) description TXT Description of the MSA feature notes TXT Additional notes about the MSA feature JURISDICTION / OWNERSHIP Field Type Definition localJuris TXT Mandated age...
AI summary The text presents a table describing various MSA (Managed Species Area) features, including their jurisdiction, ownership, classification, and conservation status. It outlines fields such as legal acts, protection status, and categories of protected areas, with references to international biodiversity targets and IUCN classifications.
Alewife Previous monitoring studies and observations from NS Power personnel suggest that the East River alewife run consists likely of a few thousand fish; however, this is only a qualitative statement. NS Power will work with
AI summary Previous monitoring studies and observations from NS Power personnel suggest that the East River alewife run consists likely of a few thousand fish, though this is a qualitative statement. NS Power will collaborate on further assessments.
Study design – Adult Alewife and American Eel Downstream monitoring of migrating alewife and American eels will be conducted using High Resolution (HR) acoustic tags and hydrophones. Hydrophones are proposed to be deployed in the headpond...
AI summary The study design involves downstream monitoring of migrating alewife and American eels using HR acoustic tags and hydrophones deployed in various locations, including the headpond and intake canal, to track the movement of tagged fish within the Ruth Falls headpond.
Alewife Sampling for alewife will start in August to coincide with downstream migration. Alewife should be manipulated as little as possible and held for only a short period. Up to fifty alewife will be tagged with a V3 high resolution tra...
AI summary Sampling for alewife will begin in August, using a method that involves tagging up to fifty fish with high-resolution transmitters. Fish will be caught in the headpond and bypass trap, recorded for length, weight, and status, and then released. The method used at Whiterock was successful, and preference is given to fish caught in the lake to avoid bias.
CI 50518 NSUARB IR-12 Attachment 14a Page 3 of 3 REDACTED (CONFIDENTIAL INFORMATION REMOVED) Attachment Limits - Emera will not accept email larger than 50MB or emails containing high risk attachments like ZIP, EXE or others that could con...
AI summary The document discusses the submission of responses by NSPI to NSUARB information requests related to the Ruth Falls Main Dam Refurbishment ATO (NSUARB M11927). It also mentions the removal of Attachment 14b due to confidentiality and email attachment size and security restrictions.