An official website of the United States government
Here's how you know
Official websites use .gov
A .gov website belongs to an official government organization in the United States.
Secure .gov websites use HTTPS
A lock () or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.
Due to a lapse in appropriations, the majority of USGS websites may not be up to date and may not reflect current conditions. Websites displaying real-time data, such as Earthquake, Volcano, LANDSAT and Water information needed for public health and safety will be updated with limited support. Additionally, USGS will not be able to respond to inquiries until appropriations are enacted. For more information, please see www.doi.gov/shutdown.
A comprehensive statewide spatiotemporal stream assessment of per- and polyfluoroalkyl substances (PFAS) in an agricultural region of the United States
In collaboration with two USGS Water Science Centers and the University of Iowa, SLSB and NWQL scientists have recently published a new research...
Media Advisory: Scientists and Officials Celebrate 40 Years of Groundbreaking Science in Lakewood
Forty years ago, water samples from around the country started flowing into the U.S. Geological Survey’s National Water Quality Laboratory in Colorado...