Water Resources

Groundwater, Aquifers, Wells, and Springs

Filter Total Items: 100
Date published: February 26, 2019
Status: Completed

National Brackish Groundwater Assessment

All water naturally contains dissolved solids that can make it "brackish" or distastefully salty. The amount of freshwater for drinking-water, agricultural, industrial, and environmental needs has declined in many areas and has led to concerns about future availability. The USGS conducted a national assessment of brackish aquifers that could supplement or replace freshwater sources.

Attribution: Water Resources
Date published: February 25, 2019
Status: Active

Urban Waters Federal Partnership—Bronx and Harlem River Watersheds (New York, N.Y.)

The Harlem and Bronx Rivers provide ecological and social resources in an intensively urban area. Connecting people to rivers requires clean water—the USGS is helping to assess the efficacy of green infrastructure to improve the quality of stormwater that flows into the rivers.

Date published: February 25, 2019
Status: Active

Urban Waters Federal Partnership—Middle Rio Grande (Albuquerque, N. Mex.)

The Valle de Oro National Wildlife Refuge, just 7 miles south of downtown Albuquerque on the Rio Grande, will reconnect people, especially young people, with nature in this highly populated area. The USGS is gathering data that will help gauge the success of habitat restoration efforts.

Date published: February 24, 2019
Status: Active

National Water-Quality Project Sampling Methods

USGS National Water Quality Assessment (NAWQA) studies require analyses of stream and bed-sediment samples for major ions, nutrients, sediments, and organic contaminants that are consistent across time and space. Procedures have been designed specifically to produce...

Contacts: Barbara Mahler
Attribution: Water Resources
Date published: February 24, 2019
Status: Active

USGS Groundwater News

The latest groundwater science and news from the U.S. Geological Survey, issued monthly since May 2017.

Attribution: Water Resources
Date published: February 24, 2019
Status: Active

Handheld Thermal Imaging Cameras for Groundwater/Surface-Water Interaction Studies

USGS scientists are using high-resolution handheld thermal imaging cameras in groundwater/surface-water interaction studies and other investigations. These cameras are used to quickly locate and characterize thermal anomalies in streams, lakes, and adjacent structures. Variations in temperature can be used to track the heat carried by flowing water, such groundwater discharge into a stream....

Contacts: Martin A Briggs
Attribution: Water Resources
Date published: February 24, 2019
Status: Active

What does groundwater have to do with ice in Alaska?

USGS scientists are working alongside university researchers in Alaska to understand how groundwater and permafrost conditions change over time due to seasonal variations and climate change. Changes in permafrost can pose a threat to built infrastructure (like roads, homes, and pipelines) and to valued ecological resources that provide important habitats for wildlife.

Contacts: Martin A Briggs
Attribution: Water Resources
Date published: February 24, 2019
Status: Active

Fiber-Optic Distributed Temperature Sensing Technology Demonstration and Evaluation Project

Fiber-optic distributed temperature sensing (FO-DTS) is an emerging technology that has promise for characterizing estuary-aquifer and stream-aquifer interaction and for identifying transmissive fractures in bedrock boreholes.

Attribution: Water Resources
Date published: February 24, 2019
Status: Active

Borehole Nuclear Magnetic Resonance (NMR)

Borehole nuclear magnetic resonance (NMR) is an emerging geophysical method being applied to hydrogeology investigations.

Contacts: Carole Johnson
Attribution: Water Resources
Date published: February 24, 2019
Status: Active

Spectral Gamma Borehole Logging

Spectral gamma borehole geophysical methods measure natural-gamma energy spectra, which are caused by the decay of uranium, thorium, potassium-40, and anthropogenic radioactive isotopes. Spectral gamma data can be used to identify and quantify the amount of uranium, thorium, and potassium-40 isotopes detected in boreholes.

Contacts: Carole Johnson
Attribution: Water Resources
Date published: February 24, 2019
Status: Active

Geophysics for USGS Groundwater/Surface Water Interaction Studies

Understanding the interaction of groundwater and surface water is essential to water managers and hydrologists for the development of effective water-resource policy, protection, and management. The USGS conducts applied research to evaluate the use of new or emerging hydrogeophysical tools and methods to improve our understanding of groundwater/surface-water exchange.

Attribution: Water Resources
Date published: February 24, 2019
Status: Active

Water Chemistry Data for Selected Springs, Geysers, and Streams in Yellowstone National Park, Wyoming, Beginning 2009

Results of water analyses conducted on numerous thermal and non-thermal features in Yellowstone National Park beginning in 2009. Water samples were collected and analyzed as part of research investigations on arsenic, iron, nitrogen, and sulfur redox species in hot springs and overflow drainages; the occurrence and distribution of dissolved mercury; and general hydrogeochemistry of hot springs...

Attribution: Water Resources