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Analysis of water quality sampling of Twin Valley Reservoir, Clear Lake and tributaries, 1999-2010

Description

Twin Valley Reservoir was first filled in 2003 following construction of a new dam on the Little Bow River near its confluence with Mosquito Creek. To fill and operate the new reservoir, increased... More ≫

Description

Twin Valley Reservoir was first filled in 2003 following construction of a new dam on the Little Bow River near its confluence with Mosquito Creek. To fill and operate the new reservoir, increased diversion from the Highwood River to Women’s Coulee and to the Little Bow River occurs in spring according to an approved water management plan. An existing lake, Clear Lake, was also stabilized by diversion from Mosquito Creek near the mouth first operated in 2002, and additional enhancements. This report presents an evaluation and statistical analysis of water quality in Twin Valley Reservoir, Clear Lake, and their tributaries that was prepared using intensive monitoring data collected by Alberta Environment from 1999 to 2010, with reference to previous baseline sampling where needed for statistical testing.

Twin Valley Dam environmental monitoring program : Little Bow River and Mosquito Creek fish inventory project, 2014

Description

The report describes the fish communities of the Little Bow River and Mosquito Creek, based on the results of field sampling conducted in 2014. Assessment of the fish community was completed as... More ≫

Description

The report describes the fish communities of the Little Bow River and Mosquito Creek, based on the results of field sampling conducted in 2014. Assessment of the fish community was completed as part of the Twin Valley Dam environmental monitoring program. Monitoring was intended to determine the environmental impacts of the construction and operation of Twin Valley Dam and the effectiveness of environmental mitigation measures. In 2014, the fish assemblages in the Little Bow River and Mosquito Creek were generally unchanged compared to previous post-dam monitoring results. The Little Bow River fish assemblage is influenced by entrainment of fish from the Highwood River upstream from the Twin Valley Dam Reservoir and by movement and migration of fish from Travers Reservoir, downstream from Twin Valley Dam.

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2013 flood recovery monitoring program : water quality report - ambient surface water

Description

In response to 2013 flood events in southern Alberta, Environment and Sustainable Resource Development implemented enhanced water quality monitoring programs for both ambient (raw) water in... More ≫

Description

In response to 2013 flood events in southern Alberta, Environment and Sustainable Resource Development implemented enhanced water quality monitoring programs for both ambient (raw) water in rivers, streams and reservoirs, and treated drinking water. This brief summary describes the ambient water quality moniroting conducted during the period July 2 to 12, 2013.

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Flood recovery : detailed ambient water quality report - July 9, 2013

Description

In response to 2013 flood events in southern Alberta, Environment and Sustainable Resource Development implemented enhanced water quality monitoring programs for both ambient (raw) water in... More ≫

Description

In response to 2013 flood events in southern Alberta, Environment and Sustainable Resource Development implemented enhanced water quality monitoring programs for both ambient (raw) water in rivers, streams and reservoirs, and treated drinking water. This report presents the detailed results of the ambient water quality monitoring conducted during the week of July 2 to 5, 2013.

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2013 flood recovery monitoring program : water quality report - treated drinking water

Description

In response to 2013 flood events in southern Alberta, Environment and Sustainable Resource Development implemented enhanced water quality monitoring programs for both ambient (raw) water in... More ≫

Description

In response to 2013 flood events in southern Alberta, Environment and Sustainable Resource Development implemented enhanced water quality monitoring programs for both ambient (raw) water in rivers, streams and reservoirs, and treated drinking water. This brief summary presents the results of the monitoring of treated drinking water conducted during the week of July 2 to 5, 2013.

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2013 flood recovery monitoring program : water quality report - ambient and treated water

Description

In response to 2013 flood events in southern Alberta, Environment and Sustainable Resource Development implemented enhanced water quality monitoring programs for both ambient (raw) water in... More ≫

Description

In response to 2013 flood events in southern Alberta, Environment and Sustainable Resource Development implemented enhanced water quality monitoring programs for both ambient (raw) water in rivers, streams and reservoirs, and treated drinking water. This brief summary presents the results of this monitoring conducted during the week of July 2 to 5, 2013.

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Twin Valley Dam environmental monitoring program : Little Bow River and Mosquito Creek fish inventory project, 2009

Description

The report describes the fish communities of the Little Bow River and Mosquito Creek, based on the results of field sampling conducted in 2009. Assessment of the fish community was completed as... More ≫

Description

The report describes the fish communities of the Little Bow River and Mosquito Creek, based on the results of field sampling conducted in 2009. Assessment of the fish community was completed as part of the Twin Valley Dam environmental monitoring program. Monitoring was intended to determine the environmental impacts of the construction and operation of Twin Valley Dam and the effectiveness of environmental mitigation measures. In 2009, the fish assemblages in the Little Bow River and Mosquito Creek were generally unchanged compared to previous post-dam monitoring results. The Little Bow River fish assemblage is influenced by entrainment of fish from the Highwood River upstream from the Twin Valley Dam Reservoir and by movement and migration of fish from Travers Reservoir, downstream from Twin Valley Dam.

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Twin Valley Dam environmental monitoring program : Little Bow River fish inventory project

Description

The report describes the fish community of the Little Bow River, based on the results of field sampling conducted in 2005 and 2006. Assessment of the fish community was completed as part of the... More ≫

Description

The report describes the fish community of the Little Bow River, based on the results of field sampling conducted in 2005 and 2006. Assessment of the fish community was completed as part of the Twin Valley Dam environmental monitoring program. Monitoring was intended to determine the environmental impacts of the construction and operation of Twin Valley Dam and the effectiveness of environmental mitigation measures. In 2005 and 2006, the fish assemblage in the Little Bow River was generally unchanged compared to previous post-dam monitoring results. The Little Bow River fish assemblage is influenced by entrainment of fish from the Highwood River upstream from the Twin Valley Dam Reservoir and by movement and migration of fish from Travers Reservoir, downstream from Twin Valley Dam.

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Flows required to protect water quality in the Little Bow River and Mosquito Creek

Description

To assist the development of plans for the Highwood and Little Bow River watersheds, the Science and Standards Division, Alberta Environment was asked to examine the relationship between flow and... More ≫

Description

To assist the development of plans for the Highwood and Little Bow River watersheds, the Science and Standards Division, Alberta Environment was asked to examine the relationship between flow and water quality in the Little Bow River and Mosquito Creek. This report presents an evaluation of the effects of flow on water quality. Equations were developed to predict the relationship between flow and dissolved oxygen in the Little Bow River, and the relationship between flow and total suspended solids in Mosquito Creek. These equations were used to estimate flows that should ensure suitable water quality.

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Report on six case studies of flood frequency analyses

Description

Alberta Transportation has identified a problem of consistency regarding flood frequency analyses prepared for water management projects. With a view to better defining the problem, this document... More ≫

Description

Alberta Transportation has identified a problem of consistency regarding flood frequency analyses prepared for water management projects. With a view to better defining the problem, this document briefly assesses six cases where inconsistent flood frequency estimates have arisen.

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