Mission Areas

Groundwater and Streamflow Information Program

Programs L2 Landing Page

The Groundwater and Streamflow Information Program (GWSIP) is one of four Water Investigations Programs funded by Congress to identify, measure, and assess the Nation’s water resources. The GWSIP is the principal USGS Program for monitoring groundwater and streamflow, including floods and droughts, related to groundwater resources at the regional/national scales.

USGS Current Daily Streamflow Conditions

USGS Current Daily Streamflow Conditions

Real-Time Streamflow

Groundwater Watch

Groundwater Watch

Groundwater Watch

News

Photo of Flooding on Mississippi River in December 2015
October 13, 2016

An assessment of the flooding that occurred in the Meramec River Basin from December 2015–January 2016 is available in a new report from the U.S. Geological Survey. The report includes peak stages and streamflows, historical comparisons and flood-frequency statistics from the record flood.

Photo of the Colorado River near Moab, Utah
August 15, 2016

Future groundwater replenishment in the Upper Colorado River Basin may benefit from projected increases in future basin-wide precipitation under current climate projections, according to a recent study by the U.S. Geological Survey and Bureau of Reclamation.

USGS: Science for a changing world
August 11, 2016

Two new streamgages recently installed by the U.S. Geological Survey in the cities of Greenfield and Elwood, Indiana will provide continuous, real-time streamflow and water level information in areas that have demonstrated a need for reliable flood warning and flood-related data.  

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USGS biologist with rainbow trout from the Big Wood River, Idaho
August 8, 2017

STATUS: Active

Blaine County’s population nearly quadrupled from about 5,700 to 22,000 people between 1970 and 2010. Residents and resource managers of the Wood River Valley of south-central Idaho are concerned about the potential effects that population growth and the expected increased demand for water might have on the quantity and quality of the valley’s ground and...

National Groundwater Awareness Week
April 20, 2016

Science to discover and describe the location, condition, and behavior of water in the ground.

USGS science for a changing world logo
March 12, 2016

These assessments will document the effects of human activities on water levels, groundwater storage, and discharge to streams and other surface-water bodies; explore climate variability impacts on the regional water budget; and evaluate the adequacy of data networks to assess impacts at a regional scale.

USGS science for a changing world logo
March 12, 2016

At the core of NSIP will be a set of USGS-funded streamgages strategically positioned across the country that are continuously operated to fulfill five Federal needs for streamflow information. These will be a permanent set of core streamgages from which streamflow information would be delivered in real time, uncompromised by changing support from funding partners.

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USGS science for a changing world logo
March 12, 2016

Groundwater Level Data

Measurements of groundwater levels from wells are used to monitor changes in groundwater conditions due to climate variability and withdrawals (pumping). The GWRP has supported the development of a Groundwater Climate-Response Network, a network of wells selected to illustrate the response of the groundwater system to climate variations nationwide.

USGS science for a changing world logo
March 12, 2016

Geophysical Methods & Applications

USGS conducts research into new and emerging geophysical methods and applications for groundwater investigations. Near-surface geophysical techniques can be used to rapidly and effectively characterize the shallow subsurface and to monitor hydrologic and remediation processes in ways not previously possible with standard technology.

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USGS science for a changing world logo
March 12, 2016

Hydrologic modeling and analysis tools are important components of NAWQA studies. The types of modeling and analysis tools that play a large role in NAWQA include: Statistical models and analyses, Geographic information system (GIS) analyses, Process-based models, and Hybrid statistical, GIS, and process-based models.

Screenshot of the software FLASH
March 7, 2011

FLASH (Flow-Log Analysis of Single Holes) is a computer program for the analysis of borehole vertical flow logs.

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2017 (approx.)

The Arizona Water Science Center details the history and development of the Continuous Slope-Area Method. Learn about the people and events that began these new advances in the field of stream gaging. 

Music Artist: Glenn Jones, “Bergen County Farewell”. CC License. Music provided by www.FreeMusicArchive.com

2017 (approx.)

The Arizona Water Science Center demonstrates new methods in Reach-Scale Monitoring to improve accuracy and measurability of high flow events. By installing pressure transducers and using LiDAR to measure topography data, hydrologists are able to simulate flows with two dimensional models which will help better calibrate stream gages. These advances have potential to aid in gathering important hydrologic data in hard to access locations.

Filmed and Edited by Corey Shaw
Music Aritst: Cory Gray, “Technological 1-5”. 
Music provided by www.FreeMusicArchive.com
http://freemusicarchive.org/music/Cory_Gray/Music_For_Film__TV/Technological_1

March 11, 2017

Caribbean-Florida Water Science Center, Davie Office, supported Broward County Watter Matters Day on March 11, 2017 as part of an outreach event to the public.
http://www.broward.org/WaterMatters/Pages/ProgramsWMD.aspx

2016 (approx.)

This video will provide a brief history and purpose for one of the oldest streamgages in Indiana. The gage is at the Wabash River at Lafayette, Indiana. The site number is 03335500. This video was produced at the request of the West Lafayette Parks Department where this historic gage is located. A QR code is displayed on an interpretive plaque next to the gage which is located in a high profile location within a city park adjacent to Purdue University. Park visitors can view a brief video on their smart phone which will educate them on the history of the gage and provide them with information on how to obtain current readings. The USGS WaterAlert text or email notifications is also featured. Our goal is to better educate the public on the importance of USGS streamgages in Indiana and the data we provide to the nation.

Some material in this video is copyrighted and for use by USGS only. Contact Producer for details.

2016 (approx.)

This video demonstrates how to establish permanent reference points and markers at a well site.
 

View of the Rio Brazos river with green trees and blue sky as the backdrop.
October 17, 2016

Hydrologic technician Lindsay Hastings took this photo of the Rio Brazos near Tierra Amarilla, New Mexico during her first field trip as a streamgager with the New Mexico Water Science Center. Did you know that New Mexico was the birth place of streamgaging? The USGS began collecting streamflow information in 1889 when the first streamgage was established on the Rio Grande in New Mexico, about 80 miles from where this photo was taken. Streamflow data are used for a variety of reasons including; drought monitoring, flood forecasting, and water-allocation permitting. These data are available to the public and can be found on the NWIS (National Water Information Systems) website.   

Photo of USGS scientist collecting noble gas sample from spring site near Roaring Judy, Colorado. 
2016 (approx.)

USGS scientist collects noble gas sample from spring site near Roaring Judy, Colorado. Groundwater discharge that flows into the Upper Colorado River Basin varies in response to drought, which is likely due to aquifer systems that contain relatively young groundwater, according to a new U.S. Geological Survey study

Photo of a spring sampling location along Little Sandy River in southern Wyoming.
2016 (approx.)

Spring sampling location along Little Sandy River in southern Wyoming. Groundwater discharge that flows into the Upper Colorado River Basin varies in response to drought, which is likely due to aquifer systems that contain relatively young groundwater, according to a new U.S. Geological Survey study

Photo of water quality and sampling equipment deployed at spring site near Roaring Judy, Colorado.
2016 (approx.)

Water quality and sampling equipment deployed at spring site near Roaring Judy, Colorado. Groundwater discharge that flows into the Upper Colorado River Basin varies in response to drought, which is likely due to aquifer systems that contain relatively young groundwater, according to a new U.S. Geological Survey study

Photo of USGS scientists monitoring the water quality off a bridge near Sedgwick, Kansas
2016 (approx.)

USGS scientists monitor the water quality off a bridge near Sedgwick, Kansas. A new USGS study shows that water quality on the Little Arkansas River and in the Equus Beds aquifer has not substantially changed since 2007 recharge activities began in the Equus Beds aquifer.

Photo of the City of Wichita's Equus Beds Aquifer Storage and Recovery Phase II river intake structure near Sedgwick, Kansas.
2016 (approx.)

The City of Wichita's Equus Beds Aquifer Storage and Recovery Phase II river intake structure near Sedgwick, Kansas. A new USGS study shows that water quality on the Little Arkansas River and in the Equus Beds aquifer has not substantially changed since 2007 recharge activities began in the Equus Beds aquifer.

Photo of a temporary streamgage installed by the USGS on the Brazos River near Brazoria, Texas.
June 1, 2016

Temporary streamgage installed by the USGS on the Brazos River near Brazoria, Texas. Rapidly deployable streamgages can be installed temporarily to provide emergency managers with additional information needed to help protect public safety.

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Photo of Flooding on Mississippi River in December 2015
October 13, 2016

An assessment of the flooding that occurred in the Meramec River Basin from December 2015–January 2016 is available in a new report from the U.S. Geological Survey. The report includes peak stages and streamflows, historical comparisons and flood-frequency statistics from the record flood.

Photo of the Colorado River near Moab, Utah
August 15, 2016

Future groundwater replenishment in the Upper Colorado River Basin may benefit from projected increases in future basin-wide precipitation under current climate projections, according to a recent study by the U.S. Geological Survey and Bureau of Reclamation.

USGS: Science for a changing world
August 11, 2016

Two new streamgages recently installed by the U.S. Geological Survey in the cities of Greenfield and Elwood, Indiana will provide continuous, real-time streamflow and water level information in areas that have demonstrated a need for reliable flood warning and flood-related data.  

USGS logo
June 21, 2016

A new report about how groundwater quality and quantity has changed in and around Gaines, Terry and Yoakum counties, Texas is now available from the U.S. Geological Survey.

Photo of a temporary streamgage installed by the USGS on the Brazos River near West Columbia, Texas.
June 1, 2016

Reporters: Do you want to interview USGS scientists as they measure flooding? Please contact Jennifer LaVista.

Texas Water Dashboard map showing streamflow and weather conditions for May 27, 2016.
May 27, 2016

Reporters: Do you want to interview USGS scientists as they measure flooding? Please contact Jennifer LaVista.

Image: Key Bridge
March 22, 2016

Explore America's streams and rivers from your computer or mobile device.

Drought effects at Trinity Lake
May 28, 2015

Although record low precipitation has been the main driver of one of the worst droughts in California history, abnormally high temperatures have also played an important role in amplifying its adverse effects, according to a recent study by the U.S. Geological Survey and university partners.

USGS science for a changing world logo
January 26, 2015

In a long-term field study, U.S. Geological Survey (USGS) and Virginia Tech scientists have found that changes in geochemistry from the natural breakdown of petroleum hydrocarbons underground can promote the chemical release (mobilization) of naturally occurring arsenic into groundwater. This geochemical change can result in potentially significant arsenic groundwater contamination.

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