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Skip to Search Results- 3Alberta Health, Environmental Health Services Division
- 3Byrtus, G.
- 2Bothe, R. A.
- 2Haufe, W. O.
- 1Alberta Environment, Hydrology Branch
- 1Alberta Environmental Centre
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1981
The Pesticide Chemicals Branch of Alberta Environment conducted a monitoring program in 1979 related to two methoxychlor treatments of the Athabasca River for black fly (Simulium arcticum) control. Three populations of black fly larvae were observed in 1979 and the first two populations were...
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An analysis of benthic invertebrate and water quality monitoring data from the Athabasca River
Download1985
As a result of industrial development in the Athabasca oil sands area of northeastern Alberta, concerns have been raised regarding potential impacts on surface water quality in the area. It is of particular concern that the cumulative effects of increasing development of the oil sands may create...
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1989
Siemonsen, D. J., Bothe, R. A.
A hydrologic parameter that has become synonymous with water quality evaluations of rivers is the term “7Q10”. This term represents the annual minimum 7-day discharge at a particular location along a river, below which flows would be expected to occur in only 10% of the years. The complement to...
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1987
Taylor, B., Hamilton, H., Westlake, D., Wallace, R., Foght, J., Hrudey, S.
This report investigates the relationship between certain hydrocarbons that are present naturally, or could be introduced due to surface oil sands mining and upgrading activities, and their potential bioaccumulation and tainting of the commercial fishery in the Athabasca River. This includes...
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Preliminary compatibility studies of G.C.O.S. sand tailings pond water with Athabasca River
Download1968
Alberta Health, Environmental Health Services Division
On May 30, 1968 G.C.O.S requested permission to discharge 110 x 106 ft3 of effluent from the sands tailings pond at the Fort McMurray site into the Athabasca River during periods of high river flow. G.C.O.S. outlined the events which made this request necessary in order that an adequate base be...
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Aspects of the hydrologic and sediment regimes of the Muskeg River basin and the consequences of vegetation removal
Download1983
In a near-natural state the aptly named 1520 km2 Muskeg River basin in northeastern Alberta has an average annual water yield of 94 mm, (20 percent of the precipitation), and an average annual sediment yield of 3210 tonnes (2.20 t/km2) which is derived almost exclusively from channel and riparian...
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1982
The Pesticide Chemicals Branch of Alberta Environment conducted a monitoring program in 1981 related to two methoxychlor treatments of the Athabasca River for black fly (Diptera: Simulium arcticum) control. Three populations of black fly larvae were observed in 1981 and the first two populations...
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1969
Alberta Health, Environmental Health Services Division
The Athabasca River serves as a source of water supply and a receiving stream for the wastes of two major industries and several communities. This report presents the summary of water quality in the Athabasca River during six sampling surveys (including a site at Fort McMurray, Tar Island, above...
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1983
Benthic macroinvertebrates were collected at two-week intervals between 1982 May 13 and August 18 at 16 sites along an 85 km stretch of the Athabasca River between Fort McMurray and the Ells River. Samples were collected from gravel bars with a 0.l m2 cylinder sampler. All netting had a mesh...
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1984
Alberta Environment, Hydrology Branch
This report identifies historical, annual and open water, low flow sequences for 13 stations in the Athabasca River Basin. Frequency curves are developed which provide an estimate of droughts of a specified exceedance probability. Drought events recorded on the Athabasca River below McMurray...