News

A new U.S. Geological Survey study provides an updated, statewide estimate of high levels of naturally occurring arsenic and uranium in private well...

A U.S. Geological Survey study of groundwater quality across the nation that began in 2013 now includes water-quality information for 18 of the most...

The U.S. Geological Survey and partners will inject a harmless, bright red fluorescent dye into the Kansas River at Eudora on March 31, weather...

A U.S. Geological Survey streamgage near Hunstville, Utah is celebrating 100 years of monitoring streamflow on the south fork of the Ogden River. The...

An estimated 4.1 million people in the lower 48 states are potentially exposed to arsenic levels that exceed EPA’s drinking water standards

Background Information

Pesticide transformation products (TPs) may be a critical missing piece of the toxicity puzzle for aquatic life in small U.S. streams, according to a...

A new USGS study estimates total nitrogen (N) and total phosphorus (P) yields from catchments throughout the Mississippi/Atchafalaya River Basin...

Mixtures of organic chemicals are ubiquitous in small U.S. streams, reports a new study by the U.S. Geological Survey. In many streams the mixtures...

The USGS Water Resources Mission Area has prepared an Environmental Assessment in accordance with the National Environmental Policy Act for a new...