All Resources

Recent changes in contaminant levels in the Bow River following the installation of a containment system at the Canada creosote site

Description

Alberta Envrionmental Protection has intensively monitored the Bow River ecosystem since 1989. This work was designed to determine the distribution of contaminants from the Canada Creosote site in... More ≫

Description

Alberta Envrionmental Protection has intensively monitored the Bow River ecosystem since 1989. This work was designed to determine the distribution of contaminants from the Canada Creosote site in the aquatic ecosystem, to protect domestic water supplies and to ensure the human consumption of fish was safe. This report evaluates changes in water quality over the two years since the containment system was intalled.

Tags

Changes in contaminant levels in the Bow River following the installation of a containment system at the Canada Creosote site

Description

In November 1989, a liquid mixture of various contaminants including the wood preservatives creosote and pentachlorophenol (PCP) was found seeping into the Bow River adjacent to the abandoned... More ≫

Description

In November 1989, a liquid mixture of various contaminants including the wood preservatives creosote and pentachlorophenol (PCP) was found seeping into the Bow River adjacent to the abandoned Canada Creosote site in Calgary. A temporary berm was built in the river around the seepage area on November 6-9, 1989, and rebuilt on October 9-19, 1990. Contaminants were removed from the bermed area. A permanent barrier to contaminant flow was installed along the entire shoreline between April 29 and May 3, 1995, and a system designed to prevent the flow of contaminated groundwater to the river around the barrier was operational by February 8, 1996.

Tags

Modelling of the response of Pine Lake to reduced internal and external loadings

Description

The Pine Lake Restoration Society began various projects in 1995 designed to reduce nutrient loading and thereby control algal blooms in Pine Lake. Measures to control both external (e.g., runoff... More ≫

Description

The Pine Lake Restoration Society began various projects in 1995 designed to reduce nutrient loading and thereby control algal blooms in Pine Lake. Measures to control both external (e.g., runoff from agricultural sites) and internal phosphorus loadings (e.g., sewage in ground water and sediment phosphorus release) are being implemented. To assess the potential benefits of these projects, a water quality model (Bathtub 5.3)(Walker 1986) was used by Water Sciences Branch, Alberta Environmental Protection to predict theoretical changes in phosphorus concentration in Pine Lake after various levels of reduction in external and internal phosphorus loading. Predictive equations for Pine Lake were then developed to predict changes in algal biomass (chlorophyll a) and transparency (Secchi depth) based on the new phosphorus concentrations predicted by the model.

Tags

Pakowki Lake water quality study (1996)

Description

Pakowki Lake is an intermittent, hypertropic lake in Southeastern Alberta. This study was designed to dertermine whether there was evidence that cyanobacterial blooms increase the rate of avian mortality. More ≫

Description

Pakowki Lake is an intermittent, hypertropic lake in Southeastern Alberta. This study was designed to dertermine whether there was evidence that cyanobacterial blooms increase the rate of avian mortality.

Tags

Chestermere Lake water quality monitoring

Description

A water quality sampling program was conducted at Chestermere Lake and along the Western Irrigation District canal during the open water seasons of 1992 and 1993. This program was designed to... More ≫

Description

A water quality sampling program was conducted at Chestermere Lake and along the Western Irrigation District canal during the open water seasons of 1992 and 1993. This program was designed to determine whether Calgary's storm water has any major impact on water quality in the WID canal and Chestermere Lake.

Tags

An overview of water quality in Frank Lake 1990-1993

Description

Frank Lake is a restored lake and wetland area east of High River, AB. It was designed to treat wastewaters from the High River Wastewater Treatment Plant and the Cargill Foods Limited meat... More ≫

Description

Frank Lake is a restored lake and wetland area east of High River, AB. It was designed to treat wastewaters from the High River Wastewater Treatment Plant and the Cargill Foods Limited meat packing plant, and to provide habitat for waterfowl production. Alberta Environmental Protection began a water quality monitoring program at Frank Lake in 1990. This program was designed to provide very basic characterization of the combined effluents and treatment efficiency of the first basin.

Tags

The Pine Lake restoration project

Description

This paper summarizes key findings on the relative impact of agriculture on external phosphorus loadings to Pine Lake, and work in progress to reduce loadings from agricultural sites.

Tags