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The technique of microsystem sediment-water simulation was used to predict water quality data for the proposed Jordanelle Reservoir, Heber City, Utah. Simulation microsystems were prepared for four sites located in the north arm of the reservoir basin including two sites located in an abandoned acid mine tailings pond. Data obtained from the tailings pond microsystems indicated that low pH water and high trace metal concentrations will exist in the north arm of the reservoir. These data suggested that some kind of membrane or compacted earth lining will be necessary to seal and contain the mine spoilage. Other sites in the reservoir basin exhibited normal water quality. Near the proposed dam, anaerobic conditions will develop rapidly due to high available concentrations of organic carbon, and the subsequent release of zinc, iron, and manganese may pose a water quality problem. In the north arm near Keetley, simulation data indicated that anaerobic conditions will not develop as quickly or be as severe as conditions expected near the dam. Overall, the availability of nitrogen and phosphorus forms in the Provo River and Jordanelle sediments indicated that possible problems with algal blooms may exist in the reservoir.


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