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Final report on Canada Creosote Site - 2014 North Bow supplementary subsurface investigation and vapour intrusion assessment

Description

The objectives of the 2014 investigation and monitoring program were to: Evaluate the potential for vapour migration in residences in the area; Assess exposure and risk to residents in the... More ≫

Description

The objectives of the 2014 investigation and monitoring program were to: Evaluate the potential for vapour migration in residences in the area; Assess exposure and risk to residents in the vicinity through direct measurement of indoor air; Investigate the effects of seasonality on potential vapour intrusion, soil vapour concentrations and presents of NAPL; Evaluate if attenuation and if possible biodegradation is occurring between the source and residents; and where possible, delineate the extent of NAPL in the vicinity of monitoring well MW10-6 and further characterize soil and groundwater conditions in this area.

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Assessment of recent changes in water quality of the Bow River downstream of the Canada Creosote site in Calgary

Description

These sampling results provide no evidence that the target compounds occur regularly in river water along the left bank (facing downstream), on the north side of the river. Contaminant movement... More ≫

Description

These sampling results provide no evidence that the target compounds occur regularly in river water along the left bank (facing downstream), on the north side of the river. Contaminant movement from the remaining pool of DNAPL in the river bed close to the right bank (facing downstream) remains the likely source of compounds detected on that side of the river downstream from the Canada Creosote site.

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Evaluation of four reports on contamination of the Athabasca River system by oil sands operations

Description

This publication includes the technical evaluation, recommendations and general conclusions drawn from four reports of contamination of the Athabasca River system by oil sands operations. The four... More ≫

Description

This publication includes the technical evaluation, recommendations and general conclusions drawn from four reports of contamination of the Athabasca River system by oil sands operations. The four reports included two papers written by a team of scientists led by Drs. David Schindler and Erin Kelly of the University of Alberta, one Alberta Environment report written by T. Hebben, and a report from the Regional Aquatics Monitoring Program.

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An independent review of coalbed methane related water well complaints filed with Alberta Environment

Description

Alberta Research Council was contracted by Alberta Environment to conduct four reviews of complaints about coalbed methane activities affecting private water wells, to independently assess the... More ≫

Description

Alberta Research Council was contracted by Alberta Environment to conduct four reviews of complaints about coalbed methane activities affecting private water wells, to independently assess the scientific evidence and provide conclusions identifying whether or not the water wells had been impacted by coalbed methane or conventional oil/gas extraction activities.

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Potential for biodegradation of sub-littoral residual oil by naturally occurring microorganisms following the Lake Wabamun train derailment

Description

On August 3rd, 2005, 46 Canadian National Railway Company rail cars derailed approximately 65 km west of Edmonton, Alberta. Approximately 712,000 L of Bunker C heavy fuel oil and 88,000 L of... More ≫

Description

On August 3rd, 2005, 46 Canadian National Railway Company rail cars derailed approximately 65 km west of Edmonton, Alberta. Approximately 712,000 L of Bunker C heavy fuel oil and 88,000 L of Imperial Pole Treating Oil were released from the ruptured cars. The oils saturated the adjacent ground, flowed on the surface, and entered the lake waters on the north shore of Lake Wabamun. A variety of scientific support surveys or activities were initiated by Alberta Environment and Environment Canada as a result of the spill, including a study to investigate the potential ability of Lake Wabamun sediment microorganisms to biodegrade spilled Bunker C oil. This report describes results of this study.

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Initial dilution zone and limited use zone concepts for receiving streams

Description

This report describes methods of analysis, benefits, limitations, and criteria associated with implementing an initial dilution zone (IDZ) for reducing possible impacts of effluents discharged to... More ≫

Description

This report describes methods of analysis, benefits, limitations, and criteria associated with implementing an initial dilution zone (IDZ) for reducing possible impacts of effluents discharged to Alberta streams and identifies effluent discharge methods capable of producing an IDZ. This report is an extension of the Technical Manual on Procedures and Methods for Evaluating Water Quality Changes in Receiving Streams.

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