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Filters Date Range Past year (0) Past month (0) Past week (0) Past day (0) Custom range... To   Search Contacts David L Naftz Theresa S Presser Wyoming-Montana Water Science Center U.S. Geological Survey - ScienceBase Water Resources U.S. Geological Survey U.S. Geological Survey Tag Schemes Geographic Names Information System (2) Getty Thesaurus of Geographic Names (2) Tags (with Type=Place ) lake koocanusa (2) british columbia, canada (1) libby dam, lincoln county, montana (1) View Results as: JSON ATOM CSV

Results of Ecosystem Scale Selenium Modeling in Support of Site-Specific Guidelines Development for Lake Koocanusa, Montana, U.S.A., and British Columbia, Canada, 2020 This data release and accompanying spreadsheet illustrate the ecosystem scale selenium model for Lake Koocanusa described in USGS Open-File Report 2020-1098, "Understanding and Documenting the Scientific Basis of Selenium Ecological Protection in Support of Site-Specific Guidelines Development for Lake Koocanusa, Montana, U.S.A., and British Columbia, Canada." All report sections, equations, and tables referenced in this data release and spreadsheet are from that report. Two models are described in the OFR. Results for several different “runs” of this model with different model input parameters and assumptions are included in this data release. The spreadsheet calculations that produced those results are also included... Categories: Data; Tags: British Columbia, Canada, Ecology, Geochemistry, Hydrology, Lake Koocanusa, All tags... Lake Koocanusa, Limnology, USGS Science Data Catalog (SDC), Water Quality, Water Resources, ecosystem scale selenium model, insect-to-fish model, selenium, trophic-fish model, Fewer tags USGS Measurements of Dissolved and Suspended Particulate Material Selenium in Lake Koocanusa in the Vicinity of Libby Dam (MT), 2015-2017 (update) IMPORTANT NOTE: Data and supporting information from samples collected during 2015-16 can be can be accessed from this link. The U.S. Geological Survey is studying Lake Koocanusa, a border reservoir between British Columbia in Canada and Montana, in collaboration with the Montana Department of Environmental Quality and the U.S. Environmental Protection Agency (Region 8). This work is part of a multi-agency project to apply an ecosystem-scale selenium modeling methodology (Presser and Luoma, 2010) to the lake to support development of site-specific selenium guidelines for the protection of aquatic life. A conceptual model framework was published in 2017 (Jenni, Naftz, and Presser, 2017) to serve as a coherent and... Categories: Data; Tags: Environmental Health, Lake Koocanusa, Libby Dam, Lincoln County, Montana, USGS Science Data Catalog (SDC), Water Quality, All tags... biogeochemistry, selenium, Fewer tags