News

A new USGS report documents a simple method to classify groundwater age as premodern (recharged before 1953), modern (recharge in 1953 or later), or a...

Editor’s Note: This story was revised Sept. 10, 2019 to include the later phases of USGS’ response to Hurricane Dorian.

To learn more about USGS’ role...

To learn more about USGS’ role providing science to decision makers before, during and after Hurricane Dorian, visit the USGS Hurricane Dorian page at...

Editor’s Note: This story was originally published Aug. 29 and was updated Aug. 30 and Aug. 31 to reflect changes in the number and locations of...

When a major storm threatens to make landfall in the United States or its territories, the USGS provides comprehensive scientific capabilities and...

New tools for flood preparedness are now available for the Medina River near Bandera, Texas, from the U.S. Geological Survey, the Bandera County River...

Isotopes of mercury in fish can indicate the source of that mercury, reports a new study from the USGS Regional Stream Quality Assessment. 

A new assessment of groundwater resources in the Spanish Valley watershed in southern Utah shows an amount that is about 30–40% lower than previously...

A new analysis of USGS National Water Quality Laboratory (NWQL) quality-control protocols finds that “false-positive” and “false negative” results...

A new update to an online interactive tool for learning about pesticides, nutrients, and overall stream health in major regions of the U.S. is...