Wyoming-Montana Water Science Center

Trace Elements and Metals

Filter Total Items: 4
Date published: May 1, 2020
Status: Active

Lake Koocanusa Water Quality

Lake Koocanusa is a transboundary reservoir located in southeastern British Columbia and northwestern Montana. The reservoir was officially impounded in 1972 after construction of Libby Dam, which began in 1966. The dam was constructed as part of a treaty between the United States and Canada to cooperatively develop the water resources of the Columbia River drainage basin. The reservoir has a...

Date published: May 9, 2018
Status: Active

Clark Fork Water-Quality Monitoring

The U.S. Geological Survey (USGS) has collected water-quality samples from selected stream sites upstream from Missoula since 1985.

Contacts: Gregory D Clark
Date published: April 28, 2018
Status: Active

Yellowstone River Basin Water-Quality Assessment

The Yellowstone River Basin (YELL) study-unit in Wyoming, Montana and North Dakota, is part of the U.S. Geological Survey's National Water-Quality Assessment (NAWQA) Program. The long-term goals of this program are to describe the status and trends in the quality of a large, representative part of the Nation's surface- and ground-water resources, and to provide a sound, scientific...

Date published: April 26, 2018
Status: Archived

Diel cycling of trace metals in streams

Historically, scientists have assumed that a properly collected water sample will provide an accurate assessment of constituent concentrations in a water body on a given day assuming constant hydrologic conditions.  However, an increasing body of evidence indicates that the concentration of many potentially toxic trace elements (such as arsenic, cadmium, copper, manganese, zinc) in streams can...