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Analysis of water quality conditions and trends for the long-term river network : Oldman River, 1966-2005

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The purpose of this report was to provide both a general summary of water quality conditions in the Oldman River and to subject the extensive long-term dataset to a thorough series of trend... More ≫

Description

The purpose of this report was to provide both a general summary of water quality conditions in the Oldman River and to subject the extensive long-term dataset to a thorough series of trend assessments. Although monitoring on the Oldman River has frequently addressed a host of trace organic contaminants, including pesticides, pharmaceuticals, personal care products, and numerous other compounds, most of these data are insufficient for statistical evaluation of trends. Hence, analysed data are largely restricted to conventional water quality variables, including such things as ions, nutrients, bacteria, and metals. Results of trend assessment on these data suggest that a number of variables have undergone significant changes over the years. Despite ongoing expansion of livestock operations, irrigation activities, and human population in the Oldman River basin, all but one significant trend detected at the two sites after 1987 are decreasing and largely indicative of improving water...

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An overview of water quality in the Oldman River Basin (1984-85)

Description

The intensive monitoring of the Oldman River and its tributaries was conducted from April 1984 to March 1985. The study included chemical monitoring, biological monitoring of algae, macrophytes... More ≫

Description

The intensive monitoring of the Oldman River and its tributaries was conducted from April 1984 to March 1985. The study included chemical monitoring, biological monitoring of algae, macrophytes and benthic invertebrates, and testing for accumulation of metals and organic contaminants in the sediments. The establishment of baseline conditions indicate the current status of the basin, including the impact of present development. This forms a basis for comparison for any future impacts or developments.

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