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Water information is fundamental to national and local economic well-being, protection of life and property, and effective management of the Nation’s water resources. The USGS works with partners to monitor, assess, conduct targeted research, and deliver information on a wide range of water resources and conditions including streamflow, groundwater, water quality, and wateruse and availability.

USGS Water Data for the Nation

USGS Water Data for the Nation

The USGS National Water Information System (NWIS) contains surface-water, groundwater, water-quality, and water-use data collected at approximately 1.5 million sites across all 50 states.

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Water Resources Information

Explore our science by the topical areas that drive the research and projects conducted by our Programs.

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News

Date published: November 29, 2018

USGS Researcher Michael Dettinger Named 2018 American Association for the Advancement of Science Fellow

Research hydrologist Dr. Michael Dettinger, whose work has contributed greatly to the understanding of the interconnectedness of climate and water supplies in the Western U.S., is among this year’s AAAS Fellows.

Attribution: Water Resources
Date published: November 20, 2018

View Sediment Core Collection on Lake Powell

Reporters: RSVP to Visit Coring Site on Lake Powell

Date published: November 13, 2018

USGS: Florence set at least 28 flood records in Carolinas

To learn more about USGS’ role providing science to decision makers before, during and after Hurricane Florence, visit the USGS Hurricane Florence page at https://www.usgs.gov/florence.

Water is one of seven science mission areas of the U.S. Geological Survey (USGS). Water's mission is to collect and disseminate reliable, impartial, and timely information that is needed to understand the Nation's water resources.

Read Science Plan
Filter Total Items: 209
Date published: December 7, 2018
Status: Active

Integrated Water Availability Assessments (IWAA)

The USGS Integrated Water Availability Assessments (IWAAs) are a multi-extent, stakeholder driven, near real-time census and seasonal prediction of water availability for both human and ecological uses at regional and national extents.

Attribution: Water Resources
Date published: November 13, 2018
Status: Active

Science Programs and Partnerships

The USGS partners with local, state, and other federal agencies through cooperative agreements for a variety of reasons. The USGS and partners jointly plan the scientific work conducted under cooperative agreements resulting in science that has broad relevance to address current water issues. Partners choose...

Date published: October 25, 2018
Status: Archived

USGS Mine Drainage Activities

The USGS Mine Drainage Activities website promoted communication, cooperation, and collaboration among interdisciplinary USGS scientists working on problems related to mining and the environment. It contains catalogs of past mining-related rpojects, activities, and publications.

Attribution: Water Resources
Date published: October 23, 2018
Status: Active

Assessment of the immune status of wild and laboratory-maintained smallmouth bass

Deaths of young-of-year smallmouth bass in the Chesapeake Bay drainage has been noted since 2005. Studies of affected fish have found bacterial, viral and parasitic infections. Mixed infections suggest these fish are immunosuppressed. Understanding the role of specific pathogens and environmental factors that contribute to their presence is important but equally important is the understanding...

Date published: September 24, 2018
Status: Completed

Trace Metals in San Francisco Bay Clams

The clams Potamocorbula amurensis and Corbicula fluminea were collected at a variety of sites in the San Francisco Bay/ Delta beginning July 1990 and ending February 2010. These invasive species were used as biosentinels of the fate, transport, and effects of trace metals in the San Francisco Bay ecosystem.

Contacts: Jessica Dyke
Attribution: Water Resources
Date published: September 20, 2018
Status: Active

Linking Selenium Sources to Ecosystems: Mining

Environmental sources of selenium (Se) such as from organic-enriched sedimentary deposits are geologic in nature and thus can occur on regional scales. A constructed map of the global distribution of Se source rocks informs potential areas of reconnaissance for modeling of Se risk including the phosphate deposits of southeastern Idaho and the coals of Appalachia.

Contacts: Theresa Presser, Joseph P. Skorupa
Attribution: Water Resources
Date published: September 20, 2018
Status: Active

Linking Selenium Sources to Ecosystems: Refining

The San Francisco Bay-Delta receives selenium (Se) internally from oil refineries and externally through riverine agricultural discharges. Predator species considered at risk from Se consume the estuary’s dominant bivalve, C. amurensis, an efficient bioaccumulator of Se. Modeling predicts site-specific ecological risk and derives a range of protective Se concentrations for use by decision-...

Contacts: Theresa Presser, Joseph P. Skorupa
Attribution: Water Resources
Date published: September 20, 2018
Status: Active

Linking Selenium Sources to Ecosystems: Irrigation

Adverse effects of selenium (Se) on fish and waterfowl in wetlands receiving agricultural drainage occurred in the 1980s in the San Joaquin Valley of California. The identified mechanisms of Se enrichment helped resolve Se toxicity problems associated with irrigated agriculture in the arid West. Bioaccumulation of Se in ancient marine sediments is postulated as a primary pathway in source...

Contacts: Theresa Presser, Joseph P. Skorupa
Attribution: Water Resources
Date published: September 20, 2018
Status: Active

Linking Selenium Sources to Ecosystems: Modeling

Selenium (Se) as a contaminant of ecosystems is bioaccumulative and causes reproductive effects in fish and wildlife. Ecosystem-scale Se modeling predicts Se bioaccumulation based on dietary biodynamics within site-specific food webs. The model can be used to forecast Se toxicity under different management or regulatory proposals or to translate a tissue guideline to a dissolved guideline. ...

Contacts: Theresa Presser, Joseph P. Skorupa
Attribution: Water Resources
Date published: September 19, 2018
Status: Active

Linking Selenium Sources to Ecosystems: Local and Global Perspectives

The sources, biogeochemistry, and ecotoxicology of selenium (Se) combine to produce a widespread potential for ecological risk such as deformities in birds and fish. Linking the understanding of source characteristics to a mechanistic, biodynamic dietary model of Se exposure on an ecosystem-scale improves the prediction of Se effects and its potential remediation.

Contacts: Theresa Presser, Joseph P. Skorupa
Attribution: Water Resources
Date published: September 19, 2018
Status: Completed

The Story of the USGS Research Vessel (R/V) Polaris

For the past 50 years, the USGS has been conducting research in the San Francisco Bay and Delta, California and beyond. This research would not have been possible without the Research Vessel (R/V) Polaris. Many scientists who have been fortunate to work on the Polaris have come and gone, but the Polaris sailed from the South San Francisco Bay continuously from 1968...

Attribution: Water Resources

The USGS collects, analyzes, and distributes data on a wide variety of water-related issues and resources. Much of our data is publicly available through the National Water Information System (NWIS), but additional datasets and analytical tools are also available.

Access NWISWeb
Filter Total Items: 368
Date published: October 30, 2018

Groundwater Quality: Decadal Change

Almost one-half of the U.S. population rely on groundwater for their water supply, and demand for groundwater for public supply, irrigation, and agriculture continues to increase. This mapper shows how concentrations of pesticides, nutrients, metals, and organic contaminants in groundwater are changing during decadal periods across the Nation.

Attribution: Water Resources
Date published: October 10, 2018

Changes in imperviousness for U.S. urban areas, 1974-2012

This product consists of two sets of imperviousness calculations for 3,535 urban areas and urban clusters in the conterminous United States. Imperviousness is given as the percent of the area covered by impervious surfaces, such as roads, buildings, or parking lots.

Attribution: Water Resources
Date published: October 5, 2018

U.S. Geological Survey GAGES-II time series data from consistent sources of land use, water use, agriculture, timber activities, dam removals, and other historical anthropogenic influences

 This product is a series of ten datasets containing tabular data from historical time series sources for the 9,067 conterminous United States sites in the U.S. Geological Survey (USGS) Geospatial Attributes of Gages for Evaluating Streamflow II (GAGES-II) dataset. 

Attribution: Water Resources
Date published: October 1, 2018

Watershed Regressions for Pesticides (WARP)

The National Water-Quality Assessment (NAWQA) project developed a series of statistical models, based on monitoring data and watershed characteristics, to enable estimation of pesticide concentrations for streams that have not been monitored.

Attribution: Water Resources
Date published: September 26, 2018

Water Budgets Across the United States

In this data visualization, you can see how three major components of the water budget vary across the conterminous US. Precipitation is incoming rain and snow; evapotranspiration is outgoing evaporation from soil and water bodies and transpiration through plants; and runoff is excess water that makes its way to lakes and rivers through streams and spring discharges. 

Date published: September 24, 2018

Estimated Annual Agricultural Pesticide Use

For all States except California, proprietary farm survey pesticide-use data are aggregated and reported at the multi-county Crop Reporting District (CRD) level. Harvested-crop acreage data by county from the U.S. Department of Agriculture Census of Agriculture are used to calculate the median pesticide-by- crop use rates for each crop in each CRD. 

Attribution: Water Resources
Date published: September 21, 2018

Ancillary Data Related to Nutrients in the Chesapeake Bay—Data Supporting Structural Equation Modeling of Nutrient Loads

This data release provides ancillary data that describe potential nutrient sources and processes for total nitrogen (TN) and total phosphorus (TP) annual loads for 84 water-quality sites within the Chesapeake Bay. 

Attribution: Water Resources
Date published: September 21, 2018

Water-Quality Changes in the Nation's Streams and Rivers

This mapper provides results from the largest-ever assessment of water quality changes in the Nation's streams and rivers. More than 185 million water-quality records from over 600 Federal, State, Tribal, and local organizations were screened as part of this assessment. 

Attribution: Water Resources
Date published: September 21, 2018

First-of-its-kind Interactive Map Brings Together 40 Years of Water-Quality Data

This mapper provides results from the largest-ever assessment of water-quality changes in the Nation's streams and rivers. More than 185 million water-quality records from over 600 Federal, State, Tribal, and local organizations were screened as part of this assessment. 

Attribution: Water Resources
Date published: September 4, 2018

USGS Water Web Services

This site serves USGS water data (streamflow, groundwater, water quality, site information, and statistics) via automated means using web services and extensible markup language (XML), as well as other popular media types. Services are invoked with the REST protocol. These services designed for high fault tolerance and very high availability.

Attribution: Water Resources
Date published: August 2, 2018

WaterWatch Toolkit

The USGS WaterWatch Toolkit provides online tools that allow users to search USGS sites in various ways; create a variety of maps, graphs, charts, animations, and tables; perform a variety of streamflow analyses, and retrieve summary statistics.

Attribution: Water Resources

Downloadable spatial data files for exploration and analysis.

Filter Total Items: 28
Date published: June 21, 2018

Louisiana Fact Sheets by Parish

Louisiana Fact Sheets by Parish

Date published: November 2, 2017

Tualatin River Basin Beaver Study Area

Map of intensive sites and rapid sites where data was collected for the Tualatin River Basin Beaver Study.

Date published: August 31, 2017

WaterWatch Flood Map

Current stream conditions and NWS forecast stream conditions.

Date published: August 25, 2017

Texas Water Dashboard

The Texas Water Dashboard presents USGS real-time stream, lake and reservoir, precipitation and groundwater data for more than 850 USGS real-time observation stations in Texas.

Date published: June 23, 2017

Ascension Parish

Ascension Parish

Date published: June 23, 2017

Amite River Basin

Amite River Basin

Date published: June 4, 2017

Long Island Water Districts

Long Island Water District Areas

Date published: June 3, 2017

Michigan-Ohio Current Water Conditions

The clickable sites, Water Resources Conditions List, and Data Table at the bottom of the map are all connected. Interacting with any of them will activate pop-ups and display the site in both the Map, List and Table. 

Date published: May 18, 2017

Virginia Real-Time Precipitation Network

This interactive map shows current and cumulative rainfall total for precipitation sites in Virginia.  Map provides real-time precipitation radar image to overlay from National Weather Service. 

Date published: January 24, 2017

Assessing Endocrine Disrupting Chemicals Risk In U.S. National Parks

Endocrine disrupting chemicals (EDC) threaten the reproductive success and long-term survival of sensitive aquatic populations in the U.S. National Park Service (NPS). The project employs a standardized EDC risk assessment framework to link new and ongoing research efforts in individual Parks and in Park Monitoring Networks, in order to provide a service-wide assessment of EDC risk in the NPS.

 

Date published: October 13, 2016

Maps and GIS Data

Explore water resources maps and GIS data.

Attribution: Water Resources
Date published: September 30, 2016

Lower Mississippi River Forecast Center, Slidell, Louisiana

River and Coastal Forecast Information

Lower Mississippi River Forecast Center, Slidell, Louisiana—(NWS)

 

Filter Total Items: 15,272
Year Published: 2019

Mixed-chemical exposure and predicted effects potential in wadeable southeastern USA streams

Complex chemical mixtures have been widely reported in larger streams but relatively little work has been done to characterize them and assess their potential effects in headwaterstreams. In 2014, the United States Geological Survey (USGS) sampled 54 Piedmont streams over ten weeks and measured 475 unique organic compounds...

Bradley, Paul M.; Journey, Celeste A.; Berninger, Jason P.; Button, Daniel T.; Clark, Jimmy M.; Corsi, Steven R.; DeCicco, Laura A.; Hopkins, Kristina G.; Huffman, Bradley J.; Nakagaki, Naomi; Norman, Julia E.; Nowell, Lisa H.; Qi, Sharon L.; Van Metre, Peter C.; Waite, Ian R.

Year Published: 2019

Linkages between hydrology and seasonal variations of nutrients and periphyton in a large oligotrophic subalpine lake

Periphyton is important to lake ecosystems, contributing to primary production, nutrient cycling, and benthic metabolism. Increases in periphyton growth in lakes can be indicative of changes in water quality, shifts in ecosystem structure, and increases in nutrient fluxes. In oligotrophic lakes, conservationists are interested in characterizing...

Niswonger, Richard G.; Smith, David; Rosenberry, Donald O.; Sudeep Chandra; Naranjo, Ramon C.; Niswonger, Richard G.; Smith, David; Rosenberry, Donald O.; Chandra, Sudeep

Year Published: 2019

Effects of ferric sulfate and polyaluminum chloride coagulation enhanced treatment wetlands on Typha growth, soil and water chemistry

Land surface subsidence is a concern in many deltas worldwide as it contributes to water quality degradation, loss of fertile land and increased potential for levee failure. As a possible solution to these concerns, on-site coagulation enhanced treatment wetlands(CETWs), coagulation water treatment followed by wetland...

Ling Liang, Yan; Kraus, Tamara E. C.; Silva, Lucas C. R.; Bachand, Philip A. M.; Bachand, Sandra M.; Doane, Timothy A.; Horwath, William R.
Liang, Y.L., Kraus, T.E., Silva, L.C., Bachand, P.A., Bachand, S.M., Doane, T.A. and Horwath, W.R., 2018. Effects of ferric sulfate and polyaluminum chloride coagulation enhanced treatment wetlands on Typha growth, soil and water chemistry. Science of The Total Environment, v. 648, p. 116-124. https://doi.org/10.1016/j.scitotenv.2018.07.341 [First online 25-July-2018]

Year Published: 2018

Geometric versus anemometric surface roughness for a shallow accumulating snowpack

When applied to a snow-covered surface, aerodynamic roughness length, z0, is typically considered as a static parameter within energy balance equations. However, field observations show that z0 changes spatially and temporally, and thus z0 incorporated as a dynamic parameter may greatly improve models. To evaluate methods...

Sanow, Jessica E.; Fassnacht, Steven R.; Kamin, David J.; Sexstone, Graham A.; Bauerle, William L.; Oprea, Iuliana

Year Published: 2018

Prioritization framework for ranking riverine ecosystem stressors using example sites from the Tualatin River Basin, Oregon

As human populations increase, so does their influence over the environment. Altered terrain, degraded water quality, and threatened or endangered species are all-too-common consequences of a growing anthropogenic influence on the landscape. To help manage these effects, researchers have developed new ways to characterize current environmental...

Sobieszczyk, Steven; Jones, Krista L.; Rounds, Stewart A.; Nilsen, Elena B.; Morace, Jennifer L.
Sobieszczyk, S., Jones, K.L., Rounds, S.A., Nilsen, E.B., and Morace, J.L., 2018, Prioritization framework for ranking riverine ecosystem stressors using example sites from the Tualatin River Basin, Oregon: U.S. Geological Survey Scientific Investigations Report 2018-5153, 40 p., https://doi.org/10.3133/sir20185153.

Year Published: 2018

Contaminants of emerging concern in the environment: Where we have been and what does the future hold?

In 1962, Rachel Carson’s book Silent Spring alerted the nation to the dangers of manmade chemicals and indiscriminate use of pesticides. DDT was the culprit and its use threatened a variety of wildlife, including the national bird, bald eagles. In 1969, pressured by scientists and the public, the United States banned almost all uses of DDT;...

Battaglin, William A.; Kolpin, Dana W.; Furlong, Edward T.; Glassmeyer, Susan; Blackwell, Brett R.; Corsi, Steven; Meyer, Michael T.; Bradley, Paul M.
Battaglin, W.A., Koplin, D.W., Furlong, E.T., Glassmeyer, S., Blackwell, B., Corsi, S.R., Meyer, M. T., and Bradley, P.M., 2018, Contaminants of Emerging Concern in the Environment: Where We Have Been and What Does the Future Hold?: Water Resources IMPACT, vol. 20, no. 6, p. 8-11. https://www.awra.org/impact/

Year Published: 2018

Estimating metal concentrations with regression analysis and water-quality surrogates at nine sites on the Animas and San Juan Rivers, Colorado, New Mexico, and Utah

The purpose of this report is to evaluate the use of site-specific regression models to estimate metal concentrations at nine U.S. Geological Survey streamflow-gaging stations on the Animas and San Juan Rivers in Colorado, New Mexico, and Utah. Downstream users could use these regression models to determine if metal concentrations are elevated and...

Mast, M. Alisa
Mast, M.A., 2018, Estimating metal concentrations with regression analysis and water-quality surrogates at nine sites on the Animas and San Juan Rivers, Colorado, New Mexico, and Utah: U.S. Geological Survey Scientific Investigations Report 2018–5116, 68 p., https://doi.org/10.3133/sir20185116.

Year Published: 2018

Land subsidence along the California Aqueduct in west-central San Joaquin Valley, California, 2003–10

Extensive groundwater withdrawal from the unconsolidated deposits in the San Joaquin Valley caused widespread aquifer-system compaction and resultant land subsidence from 1926 to 1970—locally exceeding 8.5 meters. The importation of surface water beginning in the early 1950s through the Delta-Mendota Canal and in the early 1970s through the...

Sneed, Michelle; Brandt, Justin T.; Solt, Michael
Sneed, M., Brandt, J.T., and Solt, M., 2018, Land subsidence along the California Aqueduct in west-central San Joaquin Valley, California, 2003–10: U.S. Geological Survey Scientific Investigations Report 2018–5144, 67 p., https://doi.org/10.3133/sir20185144.

Year Published: 2018

Groundwater-storage change and land-surface elevation change in Tucson Basin and Avra Valley, south-central Arizona—2003–2016

The U.S. Geological Survey monitors groundwater-storage change and land-surface elevation change caused by groundwater withdrawal in Tucson Basin and Avra Valley—the two most populated alluvial basins within the Tucson Active Management Area. The Tucson Active Management Area is one of five active management areas in Arizona established by the...

Carruth, Robert L.; Kahler, Libby M.; Conway, Brian D.
Carruth, R.L., Kahler, L.M., and Conway, B.D., 2018, Groundwater-storage change and land-surface elevation change in Tucson Basin and Avra Valley, south-central Arizona—2003–2016: U.S. Geological Survey Scientific Investigations Report 2018–5154, 34 p., https://doi.org/10.3133/sir20185154.

Year Published: 2018

Simulation of groundwater flow and analysis of projected water use for the Rush Springs aquifer, western Oklahoma

The U.S. Geological Survey, in cooperation with the Bureau of Reclamation and the Oklahoma Water Resources Board, (1) quantified the groundwater resources of the Rush Springs aquifer in western Oklahoma by developing a numerical groundwater-flow model, (2) evaluated the effects of estimated equal-proportionate-share (EPS) pumping rates on aquifer...

Ellis, John
Ellis, J.H., 2018, Simulation of groundwater flow and analysis of projected water use for the Rush Springs aquifer, western Oklahoma: U.S. Geological Survey Scientific Investigations Report 2018–5136, 156 p., https://doi.org/10.3133/sir20185136.

Year Published: 2018

Modeling hydrodynamics, water temperature, and water quality in Klamath Straits Drain, Oregon and California, 2012–15

Executive SummaryLocated southwest of Klamath Falls, Oregon, Klamath Straits Drain is a 10.1-mile-long canal that conveys water uphill and northward through the use of pumps before discharging to the Klamath River. Klamath Straits Drain traverses an area that historically encompassed Lower Klamath Lake. Currently, the Drain receives water from...

Sullivan, Annett B.; Rounds, Stewart A.
Sullivan, A.B., and Rounds, S.A., 2018, Modeling hydrodynamics, water temperature, and water quality in Klamath Straits Drain, Oregon and California, 2012–15: U.S. Geological Survey Scientific Investigations Report 2018-5134, 30 p., https://doi.org/10.3133/sir20185134.

Year Published: 2018

Groundwater chemistry and water-level elevations in bedrock aquifers of the Piceance and Yellow Creek watersheds, Rio Blanco County, Colorado, 2013–16

The Piceance and Yellow Creek watersheds in Rio Blanco County, Colorado, are known to contain important energy resources (oil shale and natural gas) and mineral resources (nahcolite). The primary sources of fresh groundwater in the Piceance and Yellow Creek watersheds are bedrock aquifers in the Uinta and Green River Formations. The aquifers are...

Thomas, Judith C.; McMahon, Peter B.
Thomas, J.C., and McMahon, P.B., 2018, Groundwater chemistry and water-level elevations in bedrock aquifers of the Piceance and Yellow Creek watersheds, Rio Blanco County, Colorado, 2013–16: U.S. Geological Survey Scientific Investigations Report 2018–5142, 26 p., https://doi.org/10.3133/sir20185142.

Software and related material (data and documentation) are made available by the USGS to be used in the public interest and the advancement of science.

Filter Total Items: 25
Date published: August 13, 2018

SWToolbox Software Information

USGS and the U.S. Environmental Protection Agency (EPA) have combined their SWSTAT and DFLOW software programs into a new tool for the low-flow anlaysis, the SWToolbox.

Attribution: Water Resources
Date published: August 11, 2018

iRIC river flow and riverbed variation analysis

iRIC (International River Interface Cooperative) is a river flow and riverbed variation analysis software package which combines the functionality of MD_SWMS (Multi-Dimensional Surface-Water Modeling System), developed by the USGS, and RIC-Nays, developed by the Foundation of Hokkaido River Disaster Prevention Research Center.

Attribution: Water Resources
Date published: June 21, 2018

VS2DRTI Version 1.4

VS2DRTI is a graphical software package for simulating water flow, heat transport, and reactive solute transport in variably saturated porous media.

Attribution: Water Resources
Date published: April 2, 2018

VS2DI Version 1.3

VS2DI is a graphical software package for simulating fluid flow and solute or energy transport in variably saturated porous media.

Attribution: Water Resources
Date published: March 20, 2018

PHAST - A Computer Program for Simulating Groundwater Flow, Solute Transport, and Multicomponent Geochemical Reactions

PHAST Is a computer program for simulating groundwater flow, solute transport, and multicomponent geochemical reactions.

Attribution: Water Resources
Date published: March 14, 2018

Water, Energy, and Biogeochemical Model (WEBMOD)

The Water, Energy, and Biogeochemical Model (WEBMOD) uses the framework of the U.S. Geological Survey (USGS) Modular Modeling System (MMS) to simulate fluxes of water and solutes through watersheds. WEBMOD divides watersheds into model response units (MRU) where fluxes and reactions are simulated for several hillslope reservoir types.

Attribution: Water Resources
Date published: January 25, 2018

SPARROW modeling: Estimating contaminant transport

 

What’s New: A new version of the SPARROW code is being developed in the R programming language. The advantage of R is that it is non-proprietary and does not require a license or software cost. The R – SPARROW code is now being completed and should be available early in CY18. Stay Tuned.

Date published: November 30, 2017

Stochastic Empirical Loading and Dilution Model (SELDM)

SELDM is a database application where users can easily create and run highway-runoff simulations. SELDM simulates storm flows, concentrations, and loads. SELDM calculates the risk of exceeding water-quality criteria with and without user-defined BMPs. SELDM calculates annual runoff loads and is able to do a simple annual lake-loading analysis.

Date published: November 9, 2017

PHREEQC Version 3

PHREEQC Version 3 is a computer program for speciation, batch-reaction, one-Ddmensional transport, and inverse geochemical calculations.

Attribution: Water Resources
Date published: November 2, 2017

CE-QUAL-W2 - Hydrodynamic and Water Quality Model

CE-QUAL-W2 is a water quality and hydrodynamic model in 2D (longitudinal-vertical) for rivers, estuaries, lakes, reservoirs and river basin systems. W2 models basic eutrophication processes such as temperature-nutrient-algae-dissolved oxygen-organic matter and sediment relationships.

Date published: June 20, 2017

GCLAS (Graphical Constituent Loading Analysis System)

GCLAS is a program designed primarily to compute daily and annual loadings of constituents transported in streamflow.

Date published: September 30, 2016

MT3D-USGS: Groundwater Solute Transport Simulator for MODFLOW

MT3D-USGS is a USGS updated release of the groundwater solute transport code MT3DMS. MT3D-USGS includes new transport modeling capabilities to accommodate flow terms calculated by MODFLOW packages that were previously unsupported by MT3DMS and to provide greater flexibility in the simulation of solute transport and reactive solute transport.

The USGS produces many types of multimedia products. Use the links below to browse our offerings of photograph galleries, podcasts and sound files, videos, aerial photos, and posters related to water. The USGS Newsroom has a Web page that highlights the main collection of multimedia products.

Filter Total Items: 1,317
A national map that shows by color estimated concentrations of atrazine in shallow groundwater underneath agricultural land.
December 31, 2018

Estimated concentrations of atrazine in shallow groundwater

This map shows estimated concentrations of atrazine in shallow groundwater beneath agricultural land. Atrazine use is one of the most important factors used to predict atrazine and deethylatrazine concentrations in groundwater (right). Within areas of high atrazine use, groundwater residence time, soil permeability, and other factors explain some of the differences in

...
Map of United States in Late Cretaceous Time (66 to 100 million years ago).
December 31, 2018

Map of United States in Late Cretaceous Time (66 to 100 million years

Map of United States in Late Cretaceous Time (66 to 100 million years ago).(Source: USGS Bulletin 1291)

Brackish groundwater movement figure
December 31, 2018

Brackish groundwater movement figure

Brackish groundwater movement figure. (Source: USGS Circular 1262)

Overview of Water Quality in Principal Aquifers
December 31, 2018

Overview of Water Quality in Principal Aquifers

Overview of Water Quality in Principal Aquifers

Seawater Intrusion Figure
December 31, 2018

Seawater Intrusion Figure

Seawater Intrusion Figure. (Source: USGS Circular 1262)

USGS gage 01419500 Willowemoc Creek near Livingston Manor, NY
December 31, 2018

USGS gage 01419500 Willowemoc Creek near Livingston Manor, NY

USGS gage 01419500 Willowemoc Creek near Livingston Manor, NY

Attribution: Water Resources
Public Supply Water Use in 2015
December 31, 2018

Public Supply Water Use in 2015

Public Supply Water Use in 2015

Development of geothermal saline groundwater into a warm-spring spa.
December 31, 2018

Development of geothermal saline groundwater into a warm-spring spa.

Development of geothermal saline groundwater into a warm-spring spa.
(Source: State of Florida Department of Natural Resources. Special Publication No. 21, 1977)

USGS gage 01428000 Tenmile River at Tusten, NY
December 31, 2018

USGS gage 01428000 Tenmile River at Tusten, NY

USGS gage 01428000 Tenmile River at Tusten, NY

Attribution: Water Resources
Domestic Water Use Withdrawals in 2015
December 31, 2018

Domestic Water Use Withdrawals in 2015

Domestic Water Use Withdrawals in 2015

Filter Total Items: 382
Date published: November 29, 2018

USGS Researcher Michael Dettinger Named 2018 American Association for the Advancement of Science Fellow

Research hydrologist Dr. Michael Dettinger, whose work has contributed greatly to the understanding of the interconnectedness of climate and water supplies in the Western U.S., is among this year’s AAAS Fellows.

Attribution: Water Resources
Date published: November 20, 2018

View Sediment Core Collection on Lake Powell

Reporters: RSVP to Visit Coring Site on Lake Powell

Date published: November 13, 2018

USGS: Florence set at least 28 flood records in Carolinas

To learn more about USGS’ role providing science to decision makers before, during and after Hurricane Florence, visit the USGS Hurricane Florence page at https://www.usgs.gov/florence.

Date published: November 9, 2018

USGS Working to Restore Streamgages

For questions about a streamgage in your state, please contact your local USGS water science center; contacts can be found at https://water.usgs.gov/key_officials.html.

Date published: November 8, 2018

Back and Forth: Ask Questions and Learn More About the Low-Level Helicopter Flying Above the Mississippi Alluvial Plain

Media:            Please join the U.S. Geological Survey, CGG Airborne, and various partners for a demonstration takeoff of the low-flying helicopter and description of what scientists are seeking in/around the Mississippi Alluvial Plain. Please RSVP to Heidi Koontz at 720-320-1246 or hkoontz@usgs.gov.

Date published: October 25, 2018

Seeking Water from Above: Low-Level Helicopter to Fly Above Mississippi Alluvial Plain

Editor:  In the public interest and in accordance with Federal Aviation Administration regulations, the USGS is announcing this low-level airborne project.  Your assistance informing the local communities is appreciated.  

Date published: October 16, 2018

USGS Measures Flooding Across Texas

Reporters: Do you want to accompany a USGS field crew as they measure flooding? Please contact Jennifer LaVista or Lynne Fahlquist.

Date published: October 15, 2018

Scientists to Measure Wood River Valley Groundwater Levels

Data Will Help to Improve Groundwater-Flow ModelData Will Help to Improve Groundwater-Flow Model

Date published: October 3, 2018

USGS Crews Work Fast to Capture Evidence of Devastating Carolina Floods

To learn more about USGS’ role providing science to decision makers before, during and after #Florence, visit the #USGS Hurricane Florence page at https://www.usgs.gov/florence

Date published: October 2, 2018

USGS Prepares to Measure Flooding Across Arizona

Reporters: Do you want to accompany a USGS field crew as they measure flooding? Please contact Jennifer LaVista or Jim Leenhouts

Date published: September 18, 2018

USGS Keeps Vital Information Flowing in Carolina Flood Catastrophe

To learn more about USGS’ role providing science to decision makers before, during and after #Florence, visit the #USGS Hurricane Florence page at https://www.usgs.gov/florence

Date published: September 14, 2018

Big Thompson Floods of 1976 and 2013 - A Visual Comparison

The Big Thompson Floods of 1976 and 2013 shown visually. The inundation images reflect the location and peak streamflows at certain points between Estes Park and Loveland, Colorado.

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