Microbes transform nitrogen in tidal freshwater zones, usually causing denitrification, but recent research says areas of high nitrogen have been found.
The USGS is monitoring our groundwater for hormones, pharmaceuticals, and other compounds with good news for water quality.
Recent work shows how the “decorative” heterogeneity of surfaces at the nanoscale can help predict how colloids like bacteria travel through groundwater.
The Colorado Department of Public Health and the Environment is monitoring groundwater for low levels of PFCs pursuant to EPA guidance.
Bioreactors can help protect the Chesapeake Bay Watershed from excessive nitrates in water from agricultural runoff while protecting nitrogen-rich soil.
New research indicates that oil and gas regulations surrounding hydraulic fracturing are inadequate to protect underwater drinking water sources.
USGS scientists have identified where in the midwestern Cambrian-Ordovician aquifer system radium levels are high, and how the radium gets there.
Harmful pathogenic bacteria has been found in groundwater near fracking sites in Texas, suggesting new remediation strategies for evaluation.
Research shows groundwater recharge in the Western US will change with the climate; dry areas will have less recharge, and wet regions will have more.
Researchers have quantified nitrate levels in the vadose zone worldwide for the first time, warning of potential for groundwater contamination.
The Arizona Water Science Center of the USGS helps decision-makers shape policy with sound science.
Synthesizing years of information about U.S. aquifers in a new way leads to estimate of CO2 emissions from groundwater depletion.
Duke University scientists sampling groundwater wells in North Carolina’s Piedmont region find hexavalent chromium can be produced naturally.
The new Van Essen TD-Diver offers a streamlined sensor body, excellent memory capacity and compatibility with all Van Essen accessories.
Streamflow and groundwater feeding Arizona’s San Pedro River are declining in some locations, according to U.S. Geological Survey researchers.
Scientists with the U.S. Geological Survey find that groundwater age is a key factor in gauging the Upper Colorado River Basin’s future drought resilience.
U.S. Geological Survey investigators find water quality in a downstream river near Wichita, Kan. hasn’t been hurt by Equus Beds aquifer recharge.
Tritium, Inc. oversees a network of water level sensors in northern Indiana and southwest Michigan to inform groundwater management and understanding.
Ohio State and NASA researchers have developed a map of underground drainage systems that connect fresh groundwater and seawater.
Because of the potential for increased oil and gas exploration in Eastern Kentucky, scientists with the Kentucky Geological Survey have recently wrapped up a groundwater sampling effort considering 51 water wells, according to a release from the...