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Wyoming-Montana Water Science Center

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Some days are so clear it seems you can touch the mountains! Setting up a new streamgage on the Gros Ventre River above Upper Slide Lake, October 18, 2017.

Many rivers require cableways to measure high flows. Recently our streamgagers learned how to inspect the cableway and ensure that it is safe (Yellowstone River at Billings, Montana, March 9, 2018).


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In Montana

In Wyoming



  • Current conditions



USGS Water Science Centers are located in each state.

There is a USGS Water Science Center office in each State. Washington Oregon California Idaho Nevada Montana Wyoming Utah Colorado Arizona New Mexico North Dakota South Dakota Nebraska Kansas Oklahoma Texas Minnesota Iowa Missouri Arkansas Louisiana Wisconsin Illinois Mississippi Michigan Indiana Ohio Kentucky Tennessee Alabama Pennsylvania West Virginia Georgia Florida Caribbean Alaska Hawaii New York Vermont New Hampshire Maine Massachusettes South Carolina North Carolina Rhode Island Virginia Connecticut New Jersey Maryland-Delaware-D.C.



National Water-Quality Assessment

In 1991, the U.S. Congress established the National Water-Quality Assessment (NAWQA) program within the U.S. Geological Survey (USGS) to develop nationally consistent long-term datasets and provide information about the quality of the Nation’s streams and groundwater. The USGS uses objective and reliable data, water-quality models, and systematic scientific studies to assess current water-quality conditions, to identify changes in water quality over time, and to determine how natural factors and human activities affect the quality of streams and groundwater. NAWQA is the the only non-regulatory Federal program to perform these types of studies; participation is voluntary.

In the third decade (Cycle 3) of the NAWQA program (2013–2023), the USGS will concentrate on four objectives:

  • Focus on the physical, chemical, and biological characteristics of our waters and how they are changing over time;
  • Focus on analyzing the effects of human and natural factors on water-quality stressors;
  • Assess the effects of these stressors on stream ecosystem condition; and
  • Forecast the effect of the environmental change and stressors on water quality in the future.

These objectives will be addressed in part through the implementation of a new monitoring component in Cycle 3: Principal Aquifer Surveys. The Wyoming-Montana Water Science Center is collecting data for the High Plains Regional Ground Water Area Survey.

Isotope sampling equipment Processing a water-quality sample.
Preparing to collect an isotope sample. Processing a water-quality sample in a mobile laboratory.




For more information, contact:

Peter Wright
USGS Wyoming-Montana Water Science Center
1728 Lampman Drive
Billings, MT 59102
(406) 656-1444 X11
Email: prwright@usgs.gov


Wyoming-Montana Water Science Center







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