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Ruth Lake

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Wood Buffalo AB

Historical resources post-impact assessment, ATCO Electric, Ruth Lake-MacKay 240-kV transmission project and Crow and Gregoire 144 kV transmission projects, permit 2002-029

Year: 2002

The objectives of this post-impact assessment were to inventory historical resource sites within the development zone; evaluate the significance of the individual sites identified; assess the nature and magnitude of site specific impacts; and to design and implement an acceptable site specific mitigation program which would significantly eliminate potential future impacts to identified sites. Record review was conducted to identify previously recorded sites which could be affected by the development project, and to determine the nature of the database in the area. Ground reconnaissance was done to relocate, previously recorded historical resource sites as well as to identify and record any new sites within the development zone. Site discovery and post-impact assessment and included the visual examination of post-clearing surfaces within the right-of-way and inspection of adjacent exposures. Shovel testing was conducted in areas of identified cultural material or potential site areas lacking suitable exposures. The nature of the existing resource database, the quantity and quality of observable remains (e.g. site condition, content, uniqueness, and complexity) and the potential of the site to contribute to public enjoyment and education was evaluated. The areas targeted for this Historical Resources Post-Impact Assessment were portions of the Ruth Lake MacKay 240 kV Transmission Project and of the Crow and Gregoire 144 kV Transmission Projects, located in north-eastern Alberta. The Ruth Lake - MacKay Transmission Project is approximately 39 kilometres long, extending between the existing Ruth Lake Substation 848S (N1/2 16-92-10-W4M) and the new MacKay Substation (NW 5-93-12-W4M). The Crow Transmission Project is approximately 35 km long, extending between the new Crow Substation 860S and the existing Mariana Substation 833S. The Gregoire Transmission Project extends between the new Gregoire Substation 883S and an existing transmission line 7L36, with a total length of 15 km.

Toxicity of saline groundwater from Syncrude's lease 17 to fish and benthic macroinvertebrates

Author(s): McMahon, B.

Year: 1977

The mining of the tar sands which are included in the area to be developed by Syncrude Canada Ltd. will require the dewatering of the mine pits. This will involve the pumping of large volumes of saline groundwater. Present plans call for its eventual disposal through Ruth Lake, the Poplar River and, finally, the Athabasca River. This study was designed to determine whether groundwater from the mine area is toxic to aquatic organisms and, if so, the concentrations at which this toxicity is expressed. A variety of species, including both fish and aquatic insects, was tested to determine the range of sensitivity among aquatic animals. The resultant data can, with some qualifications, be used to estimate the maximum safe concentrations of groundwater which can be added to natural waters with minimal risk of toxic effects.

Traditional land use setting report for the Suncor Voyageur South Project

Author(s): Goodjohn, M.

Year: 2007

This traditional land use setting report compliments and extends information collected for the Suncor Steepbank Mine Project, Millennium Project, South Tailings Project and the Voyageur project. Senior and, in some cases, junior trapline holders of RFMA #s 578, 2156, 1790, 2676 were interviewed for the report. Aboriginal participants include members of Fort McKay First Nation and Métis. The report focuses on historic and current traditional land use within the Voyageur South Project Area. Suncor also provided a week long camp-over program where traditionally used plant species were documented by members of Fort McKay First Nation. At the time that this Traditional Land Use Setting Report was released, the report for the camping trip was still being written by Fort McKay First Nation. Likewise, Mikisew Cree First Nation were still in the process of completing their traditional land use study at the time of writing.

Water quality and aquatic resources of the Beaver Creek diversion, 1977

Author(s): Noton, L. R., & Chymko N. R.

Year: 1978

The Beaver Creek Diversion System was investigated from March to November, 1977, to describe post-diversion conditions in Beaver Creek, Ruth Lake and Poplar Creek and to characterize the two newly created water bodies in the system. Ten sites in the system were sampled regularly for physical-chemical parameters, phytoplankton, zooplankton and benthic macroinvertebrates. Additional surveys were done for fish, aquatic macrophytes, stream drift and stream habitat.