Water-quality, bed-sediment, and biological data (October 2013 through September 2014) and statistical summaries of data for streams in the Clark Fork Basin, Montana / by Kent A. Dodge and Michelle I. Hornberger ; prepared in cooperation with the U.S. Environmental Protection Agency.
Reston, Virginia : U.S. Dept. of the Interior, U.S. Geological Survey, 2015.
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Water, bed sediment, and biota were sampled in streams from Butte to near Missoula, Montana, as part of a monitoring program in the upper Clark Fork Basin of western Montana. The sampling program was led by the U.S. Geological Survey, in cooperation with the U.S. Environmental Protection Agency, to characterize aquatic resources in the Clark Fork Basin, with emphasis on trace elements associated with historic mining and smelting activities. Sampling sites were located on the Clark Fork and selected tributaries. Water samples were collected periodically at 20 sites from October 2013 through September 2014. Bed sediment and biota samples were collected once at 14 sites during August 2014.