N-72026-2027 GRA Appendix 8A-G -Depreciation Study - Redacted
26 passages
077,673 3,639,116 38,235 42 included above 363,000 446,490 3,440,673 Dam) BLACK RIVER Trout River Pond Dykes LMN Impervious Soil Storage 11 660 621.5 620.8 660 3.4 201.2 611 1 408,158 328,433 617,591 included above included above included...
AI summary The text contains numerical data and project details related to infrastructure and environmental assessments, including terms like 'Impervious Soil,' 'Storage,' and 'Environmental Site Assessment (ESA). It also references confidential information and page numbers from a 2026-2027 GRA Direct Evidence Appendix.
luding screening and reconnaissance, monitoring, subsurface testing and mitigation associated with the removal of hydroelectric assets and a return of the river systems to historic pre-dam conditions. Archaeological sites in the province o...
AI summary The text discusses the protection of archaeological sites in Nova Scotia under the Special Places Protection Act (SPPA) and the requirements for archaeological work, particularly in the context of hydroelectric asset removal and river system restoration. It emphasizes compliance with heritage research permits and guidelines for archaeological assessments.
and agree on the desired outcomes of these Archaeological Assumptions prior to initiating any NSPI development plans or projects to which these Assumptions may apply. 2.2 Archaeological Potential Archaeological potential refers to areas wi...
AI summary The text discusses the importance of determining archaeological potential before initiating NSPI development projects. It outlines the three key components of archaeological potential: background research, archaeological potential modelling, and pedestrian reconnaissance, and notes that no on-site reconnaissance was conducted for the referenced hydroelectric systems.
ces. Conversely, High Archaeological Potential does not guarantee that archaeological resources are present but that they are more likely to be encountered in these areas. 2.3 NSPI Asset Locations NSPI has provided Boreas Heritage with dig...
AI summary The document outlines the methodology for assessing archaeological potential in areas where NSPI has infrastructure assets. It explains that High Archaeological Potential areas are more likely, but not guaranteed, to contain archaeological resources. The document also details the data provided by NSPI to Boreas Heritage for the costing report, including asset classifications, locations, and impact areas.
intensive assessment. Implementation of any site-specific recommendation and/or mitigation measures must be authorized by the provincial regulator (CCH). a) Archaeological Reconnaissance It is assumed archaeological reconnaissance will be...
AI summary The text outlines the need for archaeological reconnaissance to identify areas with high archaeological potential and to confirm findings from background research. It emphasizes the importance of obtaining sufficient information to justify the clearance of low potential areas and to guide further assessments.
ssance, strategies will be identified for the appropriate methodology and scope of more detailed assessment for areas considered to exhibit high archaeological potential. As a base recommendation for all asset locations (excluding freeboar...
AI summary The document outlines strategies for archaeological assessment and mitigation in areas where asset removal may occur. It emphasizes the need for reconnaissance and systematic subsurface surveys in high potential areas, with specific methodologies for shovel testing and artifact recovery.
rtifact locations will be flagged and recorded using a GPS survey instrument. All recovered artifacts will be processed and conserved (if necessary) in accordance with provincial guidelines. In a change from the 2018 methodology, currently...
AI summary The text discusses archaeological practices during de-watering events, including the collection of all exposed artifacts, changes in methodology from 2018, and the exception for areas with prior archaeological clearance and CCTH confirmation.
ystem Asset Location Reconnaissance Shovel Testing Excavation Total Cost Annapolis Hydro Total Cost Asset Location: Annapolis Plant, Office, Sluiceway and Gate The results of the 2024 Hydro Asset Archaeology Costing indicate that area surr...
AI summary The document outlines the archaeological assessment costs for the Annapolis Hydro and Avon Hydro systems in Nova Scotia. It highlights the need for reconnaissance, shovel testing, and excavation due to high potential for impacting archaeological resources, and describes the locations and components of the Avon Hydro System.
OVED) REDACTED 2026-2027 Direct Evidence Appendix 8C Page 18 of 129 Asset Location: Canoe Lake Dam Type: Small Dam; Earthfill The results of the 2018 Hydro Asset Archaeology Study indicate that area surrounding the Canoe Lake Dam exhibits...
AI summary The text discusses archaeological assessments required for three hydroelectric assets in Nova Scotia: Canoe Lake Dam, Canoe Lake Reservoir, and Falls Lake Dam. Each location is identified as having high potential for impacting archaeological resources, with recommendations for reconnaissance and monitoring. Costs for these assessments are estimated but unspecified.
ological investigations were conducted for this area. As the location is classified as a small, earthfill dam constructed on bedrock, the recommended course of action is archaeological reconnaissance. It is estimated that the archaeologica...
AI summary The text discusses archaeological assessments required for several hydroelectric assets in Nova Scotia, including the Falls and Zwicker Lakes Reservoirs and Zwicker Lake Dam. These assessments are necessary due to the high potential for archaeological resources in these areas, with recommendations for reconnaissance and monitoring.
gical reconnaissance followed by archaeological monitoring of the asset removal. It is estimated that the archaeological assessment can be undertaken at a cost of plus applicable taxes. Asset Location: MacDonald Pond Dam and Spillway Type:...
AI summary The text discusses archaeological assessments required for two hydroelectric assets: MacDonald Pond Dam and Spillway, and Avon 1 Plant and Penstock. Both locations are identified as having high potential for impacting archaeological resources, necessitating reconnaissance, shovel testing, and excavation. Costs for these assessments are mentioned but not quantified.
that the area surrounding the dam and spillway was Low Potential for archaeological resources (Redden et al. 2016a:21). As a result, the recommended course of action is archaeological reconnaissance. It is estimated that the archaeological...
AI summary The text discusses archaeological assessments for three different hydro assets in Nova Scotia, including Gulch Flowage, the dam and spillway, and the Ridge Plant and Pipeline. Each site is identified as having high or low potential for archaeological resources, and the recommended course of action is archaeological reconnaissance, with associated costs.
ng for the removal of Ridge Wing Dam 1. As Ridge Wing Dam 2 is classified as “Leave in Place” and will have no associated ground impacts, there are no further actions recommended for Ridge Wing Dam 2. It is estimated that the archaeologica...
AI summary The text discusses archaeological assessments required for several hydroelectric assets, including Ridge Wing Dam 2, Ridge Flowage, and Mulgrave Main and Wing Dams. Each location is assessed for archaeological potential, with recommendations for reconnaissance and monitoring, along with cost estimates for the assessments.
bedrock, the recommended course of action is archaeological reconnaissance with archaeological shovel testing and archaeological excavation of the assumed impact area surrounding the dam and spillway. It is estimated that the archaeologica...
AI summary The text discusses archaeological assessments required for several hydroelectric assets in Nova Scotia, including Hells Gate Pond, Lumsden Dam and Plant, and Lumsden Pond. Each location is assessed for potential archaeological resources, with recommendations for reconnaissance, shovel testing, and excavation, along with estimated costs for these assessments.
ny significant archaeological resources within the identified areas of high potential (Garcin & Beanlands 2016b, 2016c). As a result, the recommended course of action is archaeological reconnaissance. It is estimated that the archaeologica...
AI summary The text discusses the need for archaeological assessments at the Black River Lake Dam and Black River Lake due to their high potential for impacting archaeological resources. It mentions previous studies and the potential for additional assessments if prior studies are deemed insufficient, with associated costs.
ATION REMOVED) REDACTED 2026-2027 Direct Evidence Appendix 8C Page 33 of 129 Asset Location: Black River Lake Type: Dewatering The results of the 2018 Hydro Asset Archaeology Study indicate that Black River Lake exhibits High Potential for...
AI summary The text discusses archaeological assessments required for three hydroelectric assets in Nova Scotia: Black River Lake, Forks Dam, and Lunn Dam. Each site is identified as having high potential for archaeological resources, with specific recommendations for investigation methods and estimated costs.
its Low Potential for impacting archaeological resources. No previous archaeological investigations were conducted for this area. As this location is a Freeboard dam, no further work is recommended. Asset Location: Methals Dam and Plant Ty...
AI summary The text discusses archaeological assessments for the Methals Dam and Plant, noting that the area has high potential for impacting archaeological resources. However, based on a previous study, it is assumed to have low potential. An archaeological reconnaissance is recommended, with potential for additional assessments if needed.
ORMATION REMOVED) REDACTED 2026-2027 Direct Evidence Appendix 8C Page 36 of 129 Asset Location: Methals Lake Type: Dewatering The results of the 2018 Hydro Asset Archaeology Study indicate that Methals Lake exhibits High Potential for arch...
AI summary The document discusses the potential for archaeological resources at Methals Lake and Little River Lake due to dewatering activities. Archaeological reconnaissance and excavation are recommended for both locations, with no prior investigations conducted. Costs for these assessments are estimated but not fully specified.
tigations were conducted for this area. The recommended course of action is archaeological reconnaissance of the lakeshore. The shoreline of Little River Lake was reconstructed using historic mapping. It is estimated that the archaeologica...
AI summary The text outlines archaeological assessments required for several hydroelectric assets in Nova Scotia, including Trout River Dam, Trout River Dykes, and Trout River. These assessments are recommended due to high potential for impacting archaeological resources, with costs estimated for each activity.
NSPI, it is assumed that this area is determined to be Low Potential as a result of the previous archaeological studies. As a result, the recommended course of action is archaeological reconnaissance. It is estimated that the archaeologica...
AI summary The text discusses archaeological assessments for two assets: North Gaspereau Lake Dam and Gaspereau Lake Reservoir. Previous studies indicated low potential for archaeological resources, but further reconnaissance is recommended. Additional assessments may be needed if prior studies are deemed insufficient, increasing costs.
l testing and archaeological excavation of the assumed impact area surrounding the pipeline. It is estimated that the archaeological assessment can be undertaken at a cost of plus applicable taxes. Asset Location: Miller Lake Type: Dewater...
AI summary The text discusses archaeological assessments for two hydroelectric assets in Nova Scotia: Miller Lake and Soldier Lake Main Dam. It outlines the potential for archaeological resources at these sites and recommends reconnaissance surveys. The estimated cost for these assessments is mentioned, along with previous studies and permits.
of the study area (Kelman 2008:11). Assuming that proposed impacts associated with decommissioning avoid this area of high potential, the recommended course of action is archaeological reconnaissance. It is estimated that the archaeologica...
AI summary The text discusses the archaeological assessment requirements for the decommissioning of Soldier Lake Wing Dam #1, noting previous studies and potential additional costs if further assessment is needed. It highlights the need for archaeological reconnaissance due to the high potential for impacting archaeological resources in the area.
Small Dam; Earthfill embankment It should be noted that it appears the Harmony Lake Main Dam and Harmony Wing Dam are mislabeled/switched in the list of Assets provided by NSPI The results of the 2018 Hydro Asset Archaeology Study indicate...
AI summary The text discusses archaeological findings near the Harmony Lake Main Dam and Harmony Wing Dam, noting that the dams may be mislabeled. It references past studies and excavations that identified potential archaeological resources, including an isolated chalcedony flake and a small concentration of charcoal near the McGowan Lake dam.
ogical reconnaissance with archaeological shovel testing and archaeological excavation of areas determined to be of High Potential, that have not been previously assessed (outside of 2015 study area). It is estimated that the archaeologica...
AI summary The text discusses archaeological assessments required for decommissioning activities at Cowie Falls Headpond and Deep Brook Dam. These assessments are necessary due to the high potential for archaeological resources, and the estimated costs for the assessments are mentioned.
iven the close proximity to significant archaeological site BaDfg-02, archaeological monitoring is recommended for portions of the Upper Lake Falls Dam in close proximity to this site (Left Wing Dam). It is estimated that the archaeologica...
AI summary The text discusses the need for archaeological monitoring near the Upper Lake Falls Dam and Sixth Lake Dam due to their proximity to significant archaeological sites. It outlines the potential for discovering archaeological resources and the associated costs of conducting assessments.
impact area surrounding the plant. REDACTED (CONFIDENTIAL INFORMATION REMOVED) REDACTED 2026-2027 Direct Evidence Appendix 8C Page 66 of 129 It is estimated that the archaeological assessment can be undertaken at a cost of plus applicable...
AI summary The text discusses archaeological assessments required for several hydroelectric assets in Nova Scotia, including Sixth Lake, Eighth Lake Dam, and Eighth Lake. Each location is identified as having high potential for archaeological resources, and the recommended actions include reconnaissance and excavation, with estimated costs for each assessment.