Friday, January 10th, 2014
In a case study of dams on the upper Missouri River, USGS researchers have demonstrated that an upstream dam is still a major control of river dynamics where the backwater effects of a downstream reservoir begin. In light of this finding, the conventional understanding of how a dam can influence a river may have to
Wednesday, December 18th, 2013
A new USGS study found that 15 percent of groundwater samples from 66 household wells across south-central New York contained methane at levels high enough to warrant monitoring or mitigation. Methane was more common and had higher concentrations in wells located in valleys rather than wells located in uplands. Valley wells that tap confined bedrock
Thursday, December 12th, 2013
Recent U.S. Geological Survey research has found that natural biochemical processes in water moving back and forth between a stream and its underlying sediment were significant in removing nitrate from streams in the Illinois River basin, one of the world’s most intensively farmed regions.
Thursday, December 5th, 2013
A recent study in Nevada’s Carson Valley by the U.S. Geological Survey confirms that septic tanks are contaminating groundwater in the region with concentrations of nitrates, posing human health risks from contaminated drinking water. Conducted on a larger scale than previous investigations, the study showed that the amount of nitrate contamination is two times greater
Monday, November 25th, 2013
For the first time since 1995 the U.S. Geological Survey will reinstate reporting the amount of water consumed in the production of thermoelectric power.
Thursday, November 21st, 2013
A newly installed United States Geological Survey streamgage on the Chattahoochee River is providing rafters, flood forecasters and dam operators critical information about the river and its ever changing flow.
Thursday, November 14th, 2013
USGS scientists have determined that high-salinity groundwater found more than 1,000 meters (0.6 mi.) deep under the Chesapeake Bay is actually remnant water from the Early Cretaceous North Atlantic Sea and is probably 100-145 million years old. This is the oldest sizeable body of seawater to be identified worldwide.
Thursday, November 14th, 2013
New research by the U.S. Geological Survey conducted on the Delmarva Peninsula, which forms the Eastern Shore of the Chesapeake Bay, indicates it may take several decades for many water-quality management practices aimed at reducing nitrogen input to the Bay to achieve their full benefit due to the influence of groundwater.
Tuesday, November 5th, 2013
A new cooperative study by the U.S. Geological Survey and the Hi-Desert Water District indicates that the artificial replenishment of the groundwater aquifer system in the west hydrogeologic unit of the Warren groundwater basin in San Bernardino County’s Yucca Valley resulted in a decrease of nitrate concentrations in groundwater samples and a rise in water
Sunday, November 3rd, 2013
USGS field crews are measuring flooding in parts of central Texas following intense rainfall. USGS crews are measuring high flood flows on the Blanco, Guadalupe, San Marcos, and Colorado Rivers. Record flooding was measured at the streamgage on Onion Creek at Highway 183 in Austin, Texas on Halloween morning around 10 a.m. The creek level