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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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Bow River phosphorus management plan (PMP) : water quality data analysis

Description

The Bow River begins in the Rocky Mountains and runs through foothills onto the prairies, ending at the confluence with the Oldman River, where it becomes the South Saskatchewan River. The river... More ≫

Description

The Bow River begins in the Rocky Mountains and runs through foothills onto the prairies, ending at the confluence with the Oldman River, where it becomes the South Saskatchewan River. The river is an important source of water for municipal use, livestock, irrigation, fisheries, recreational use and hydroelectric power. Between the Bearspaw and Bassano Dams, water needs from population, industry and agriculture result in large bodies of water being withdrawn from the Bow. The high reliance on the Bow River in this area makes it important to understand the quality of the water available and to plan effectively for its use. One component of this planning is analysing the water quality data that has been gathered for this reach.

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Bow River phosphorus management plan (PMP) : modelling for phosphorus

Description

The Bow River begins in the Rocky Mountains and runs through foothills onto the prairies, ending at the confluence with the Oldman River, where it becomes the South Saskatchewan River. The river... More ≫

Description

The Bow River begins in the Rocky Mountains and runs through foothills onto the prairies, ending at the confluence with the Oldman River, where it becomes the South Saskatchewan River. The river is an important source of water for municipal use, livestock, irrigation, fisheries, recreational use and hydroelectric power. Between the Bearspaw and Bassano Dams, population, industry and agriculture result in large volumes of water being withdrawn from the Bow. The high reliance on the Bow River in this area makes it important to understand the quality of the water available and to plan effectively for its use. One component of this planning is water quality modelling.

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Bow River phosphorus management plan

Description

Heightened nutrient levels in the Bow River downstream of Calgary have long been a concern. In the 1970s and 1980s, high nutrient levels resulted in excessive aquatic plant growth resulting in low... More ≫

Description

Heightened nutrient levels in the Bow River downstream of Calgary have long been a concern. In the 1970s and 1980s, high nutrient levels resulted in excessive aquatic plant growth resulting in low dissolved oxygen and occasional fish mortality. An interim policy on effluent limits was released by Alberta Environment in 2008. This policy required that a regional nutrient load reduction plan be developed for reaches at risk of exceeding water quality guidelines. At the same time the Government of Alberta was transitioning to an environmental management approach that addresses the cumulative effects of resource management decisions and considers the environmental, economic and social implications of development for an entire region. In 2011, Alberta Environment and Sustainable Resource Development (ESRD) invited contributing parties in the affected reach of the Bow River to initiate a voluntary, collaborative process to address phosphorus loadings, not just from point sources such as...

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Report on cumulative effects management in Alberta for the Bow River Phosphorus Management Plan

Description

This report presents an overview of cumulative effects management in Alberta to date with a focus on sub-regional activities, along with a detailed description of the Bow River Phosphorus... More ≫

Description

This report presents an overview of cumulative effects management in Alberta to date with a focus on sub-regional activities, along with a detailed description of the Bow River Phosphorus Management Plan prototype and lessons tha may be applicable to future, similar processes. A suggested process is outlined that builds on experience to date, and a compendium of tools and other elements is presented to assist sub-regional plan development and implementation.

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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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Bow River Phosphorus Management Plan : water quality modeling scenarios

Description

Eight scenarios were run with the Bow River Water Quality Model (BRWQM) to support the Bow River Phosphorus Management Plan (PMP). The scenarios predicted close to 10% increase in the instream... More ≫

Description

Eight scenarios were run with the Bow River Water Quality Model (BRWQM) to support the Bow River Phosphorus Management Plan (PMP). The scenarios predicted close to 10% increase in the instream Total Phosphorus (TP) concentration above Highwood River using the loading projected by 2039. The Dissolved Oxygen (DO) was above the chronic guideline of 6.5 mg/L in all the scenarios; however, in some instances the DO was below 8.3 mg/L in May and June. The acute guideline showed two critical locations: 10 km downstream from Bonnybrook and 10 km downstream from Strathmore wastewater treatment plants (WWTP). The frequency of compliance was at or below 99.91% in these two locations for the scenarios that used the forecasted TP loading by 2039.

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Bow River phosphorus management plan : scenario modeling results for Crowfoot Creek

Description

The SWAT (Soil Water Assessment Tool) model was selected to simulate different agricultural practices and BMP options in Crowfoot Creek. The Crowfoot Creek watershed was selected as a pilot study... More ≫

Description

The SWAT (Soil Water Assessment Tool) model was selected to simulate different agricultural practices and BMP options in Crowfoot Creek. The Crowfoot Creek watershed was selected as a pilot study area for rural nonpoint source BMP scenario modeling in Bow River Basin. Seven scenarios were run with the SWAT model to support the PMP. These included: protection of existing wetlands; restoration of degraded/drained wetlands; manure management and spreading; cropland conversion to perennial forage in riparian zones or in-field gullies/waterways; and riparian fall grazing within cultivated lands.

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Report on the Bow River Phosphorus Management Plan INFFER analysis

Description

Land Stewardship Centre (LSC) is working to bring awareness and knowledge of the Investment Framework for Environmental Resources to Alberta, and in particular, to key decision makers, land-use... More ≫

Description

Land Stewardship Centre (LSC) is working to bring awareness and knowledge of the Investment Framework for Environmental Resources to Alberta, and in particular, to key decision makers, land-use planners and program developers, in an effort to grow the capacity for implementing an asset-based, outcome-focused approach to natural resource management. LSC utilized the INFFER framework as a decision support mechanism to assist the Bow River Phosphorous Management Plan (BRPMP) Steering Committee in developing a phosphorus management plan. Included in the analysis was a need for clearly identifying the targeted asset, an assessment of the potential impacts of specific programs, estimating the adoption of programs by landowners and land managers, short and long-term costs for each proposed scenario, and risk estimates.

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