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USGS Measurements of Dissolved and Suspended Particulate Material Selenium in Lake Koocanusa in the Vicinity of Libby Dam (MT), 2015-2017 (update)


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Presser, T.S., Naftz, D.L., and Jenni, K.E., 2018, USGS Measurements of Dissolved and Suspended Particulate Material Selenium in Lake Koocanusa in the Vicinity of Libby Dam (MT), 2015-2017 (update): U.S. Geological Survey data release,


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 consistent structure [...]


Point of Contact :
David L Naftz
Process Contact :
David L Naftz, Theresa S Presser
Originator :
Theresa S Presser, David L Naftz, Karen E Jenni
Metadata Contact :
Theresa S Presser
Publisher :
U.S. Geological Survey
SDC Data Owner :
Wyoming-Montana Water Science Center
USGS Mission Area :
Water Resources
Distributor :
U.S. Geological Survey - ScienceBase

Attached Files

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sedtrap3.jpg thumbnail 430.9 KB
Model-schematic.pdf 114.45 KB
science_base_USGS_sampling_matrix_generic1.xlsx 16.72 KB
Figures-2017 update.pdf 981.47 KB
Lake Koocanusa data 2015-17.xlsx 720.01 KB
Location-map-2017 final.pdf 33.15 MB
Original FGDC Metadata

50.38 KB


This dataset was collected to help understand the variability in dissolved and suspended particulate material selenium concentrations 1) within the hydrodynamics and limnology of the lake; and 2) as components of modeling the ecosystems of Lake Koocanusa. The dataset also contributes to the overall understanding of such factors as the upstream loading of selenium from coal mining in the Elk River Valley in southeastern British Columbia and the ecosystem effects of the management of Libby Dam in northwestern Montana.
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Type Scheme Key
DOI doi:10.5066/P9HB5S5F

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