News

A new USGS study reports that landscape management actions across the U.S. aimed at reducing concentrations of suspended sediment in streams and...

On Dec. 18, 2019, the USGS Water Resources Mission Area released the National Integrated Water Availability Assessments concept map. This map shows...

From 2002 to 2012, concentrations of atrazine decreased in more than one-half of 60 U.S. streams and rivers studied and increased in only about one...

Budget Focuses on Bringing Science, Facilities, and Infrastructure into the 21st Century

When scientists collected samples every day from 14 streams and analyzed them for pesticides, they found more pesticides and higher concentrations...

Human-use pharmaceuticals are frequently present in many small streams, even those not receiving wastewater treatment plant discharges, reports a new...

Emerald-green harmful algal blooms (HABs) have become an all-too-familiar summertime sight in many U.S. lakes and reservoirs. A new USGS study reports...

Reducing delivery of nitrate to the Gulf of Mexico is critical to decreasing the size of the “dead zone”—an area of hypoxia, or low dissolved oxygen...

SPARROW models, tools, and maps of streamflow, nutrients, and sediment for streams in five major U.S. regions

The herbicide glyphosate was detected at least once in 66 of 70 U.S. streams and rivers located in a range of land-use settings, according to a recent...