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Report on Canada Creosote site - North Bow screening level risk assessment update

Description

This follow-up investigation and screening level HHRA update was completed to address data gaps and recommendations outlined in the HHRA previously conducted by Golder in 2010 and 201.... More ≫

Description

This follow-up investigation and screening level HHRA update was completed to address data gaps and recommendations outlined in the HHRA previously conducted by Golder in 2010 and 201. Specifically, the objective of this investigation was to collect additional seasonal groundwater and soil vapour data at the site, and to update the previous HHRA based on this new data. The soil vapour sampling events carried out as part of this investigation targeted times of year when groundwater levels were expected to be at their approximate lowest and the vapour risk was assumed to be at its approximate highest.

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Air quality monitoring : in the vicinity of heavy oil cold flow tanks near Bonnyville : fall 2007 and spring 2008 : final report

Description

Alberta Environment conducted two air sampling surveys in the vicinity of heavy oil cold flow tanks near Bonnyville, Alberta. The surveys were initiated by public concern with odours and potential... More ≫

Description

Alberta Environment conducted two air sampling surveys in the vicinity of heavy oil cold flow tanks near Bonnyville, Alberta. The surveys were initiated by public concern with odours and potential health effects. Heavy oil extracted using the cold-flow technique is heated in onsite storage tanks to reduce viscosity. Lowering the viscosity of the oil allows the product to be pumped from the onsite storage to tank trucks for treating and upgrading. The onsite storage tanks may not have vapour recovery systems installed and water vapour and volatalized hydrocarbons can be released from the theif hatch at the top of the tank. These tanks are 7-10 meters in height.

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Evaluation of computer models for predicting the fate and transport of hydrocarbons in soil and groundwater

Description

This report was prepared to document Phase I through Phase III of a project to research computer codes for predicting the fate and transport of hydrocarbons in soil and groundwater. The project... More ≫

Description

This report was prepared to document Phase I through Phase III of a project to research computer codes for predicting the fate and transport of hydrocarbons in soil and groundwater. The project evaluates a wide range of existing computer codes for their ability to predict the shallow movement of hydrocarbons in soil and groundwater.

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