USGS Great Salt Lake Science

Summary

The USGS Utah Water Science Center maintains ongoing monitoring and scientific documentation of the Great Salt Lake's status, hydrology, and ecosystem. The USGS is the authoritative federal scientific agency for water resource monitoring in the United States, and its Great Salt Lake datasets are the primary independent source for lake level, salinity, brine shrimp population, and streamflow data from the lake's tributaries.

Useful Claims

• This hub-page capture does not establish the reported 2022 record-low lake level or reduced surface area figures.
• This capture does not establish the reported estimate of surface area lost since 1850.
• This capture does not establish reported estimates of tributary inflow diverted for agriculture.
• USGS brine shrimp and water chemistry monitoring tracks ecological stress as salinity rises; this capture mentions the brine shrimp harvest industry but not salinity tolerance thresholds.
• A 2025 USGS dust study on the page analyzes exposed lakebed dust as a possible health risk for northern Utah communities.

Verbatim

"Great Salt Lake Falls Below 2021 Low" — News release headline, July 3, 2022

"Great Salt Lake is unique among lakes in the Western Hemisphere because of its size and salt content. It occupies a low part of the desert area of western Utah and is a terminal lake with no outlet to the sea. It varies considerably in size, depending on its surface elevation. At an elevation of 4,200 feet above sea level, the approximate historical average, it covers about 1, 700 square miles and..." — "Great Salt Lake Elevations and Areal Extent" summary

"The Great Salt Lake (GSL) is an indispensable economic and ecological resource. It provides critical habitat and food for millions of migratory birds, and generates nearly $200 million per year from recreational activities and the brine shrimp harvest industry (Bioeconomics, 2012)." — "Quantifying Nutrient Mass and Internal Cycling in Great Salt Lake" summary

"Dust from the Great Salt Lake dry lakebed: a possible health risk for communities in northern Utah" — August 28, 2025 study title

"By analyzing dust samples in northern Utah, the USGS is providing crucial insights about the importance of water and lakebed management to mitigate dust pollution and protect vulnerable communities in northern Utah." — August 28, 2025 study summary

Reliability Notes

USGS is an independent federal science agency with no regulatory or commercial stake in Great Salt Lake outcomes. This capture is the Utah Water Science Center hub page with truncated study summaries, not the full monitoring datasets or linked publications. It does not establish specific lake-level, area-loss, diversion, salinity-threshold, or sediment-contaminant figures; those require separate USGS data releases or study pages.

Related Pages

• Great Salt Lake

See Also

• Utah FFSL Great Salt Lake page · https://ffsl.utah.gov/public-lands/great-salt-lake/ — state government management and policy context
• BYU Great Salt Lake desiccation study (2023) · https://www.cpms.byu.edu/great-salt-lake — widely cited five-year desiccation timeline projection
• Great Salt Lake Collaborative · https://greatsaltlakecollaborative.org — ongoing coalition tracking and advocacy