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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.

Groundwater Information

Surface Water Information

Water Quality Information

Water Use Information

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News

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.

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: 191
Date published: November 13, 2018
Status: Active

Science Collaboration 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 to work with the USGS because of the agency's broad technical expertise, its long-...

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 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
Date published: August 27, 2018
Status: Active

Quality Systems Branch (QSB)

The USGS Quality Systems Branch (QSB) represents the Water Mission Area’s commitment to generating environmental data of known quality. QSB produces water and sediment performance-assessment samples and data to provide the USGS laboratory users, USGS laboratories, and field personnel with quantitative performance information to assess data quality.

Attribution: Water Resources
Date published: August 19, 2018
Status: Active

USGS / National Park Service Water-Quality Partnership

Since 1998, the USGS-National Park Service Water-Quality Partnership has supported 217 projects to protect and improve water quality in 119 national parks. These USGS-NPS collaborative projects support science-based resource management by the National Park Service to address critical water-quality issues for many of our Nation's most highly valued aquatic systems. 

Date published: August 15, 2018
Status: Active

Water-Use Terminology

The following terms have been used in one or more of the water-use publications. The comparison of water-use categories over the history of these reports may also help...

Date published: August 11, 2018
Status: Archived

Sediment Monitoring Instrument and Analysis Research Workshop, Flagstaff, Arizona, 2003

The Sediment Monitoring Instrument and Analysis Research Workshop, sponsored by the Federal Interagency Subcommittee on Sedimentation, was held September 9-11, 2003, in Flagstaff, Arizona. The workshop focused on advanced technologies and analytical techniques for measuring, storing, analyzing, and disseminating suspended-sediment, bedload, bed-material, bedform properties, and water clarity...

Attribution: Water Resources
Date published: August 11, 2018
Status: Archived

Turbidity and Other Sediment Surrogates Workshop, Reno, Nevada, 2002

The Turbidity and Other Sediment Surrogates Workshop, sponsored by the Federal Interagency Subcommittee on Sedimentation, was held April 30-May 2, 2002, in Reno, Nevada. This workshop focused on the use of turbidity and other technologies to infer suspended-sediment concentrations in surface water.

Attribution: Water Resources
Date published: August 11, 2018
Status: Archived

Expanding Sediment Research Capabilities in Today's USGS (workshop), Reston, VA and Harpers Ferry, WV, 1997

Proceedings of the USGS sediment workshop "Expanding Sediment Research Capabilities in Today's USGS", held February 4-7, 1997, in Reston, Virgina, and Harpers Ferry, West Virginia. This workshop drew together the four Divisions of the USGS -- Geologic, National Mapping, Water Resources, and Biological -- to focus on the common denominator of sediment research and monitoring.

Attribution: Water Resources
Date published: August 11, 2018
Status: Archived

Sediment Technology for the 21st Century (workshop), St, Petersburg, Florida, 1998

Proceedings of the "Sediment Technology for the 21st Century" federal interagency workshop, held February 17-19, 1998, in St. Petersburg, Florida. This workshop was held to bring better focus to sediment technology needs and development activities of, or relevant to, the U.S. Government.

Attribution: Water Resources
Date published: August 10, 2018
Status: Active

National Streamflow Information Program

The U.S. Geological Survey (USGS) operates and maintains a national streamgage network of about 8,000 streamgages (2018) to provide long-term, accurate, and unbiased streamflow information (often called discharge) to meet the multiple needs of many diverse users. Streamflow information is fundamental to national and local economic well-being, protection of life and property, and efficient and...

Contacts: Cory Angeroth

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: 404
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 24, 2018

National Hydrography Products

Access The National Hydrography Dataset (NHD), Watershed Boundary Dataset (WBD), and NHDPlus High Resolution (NHDPlus HR) are digital geospatial datasets that map and model the surface water of the United States.

Attribution: Water Resources
Date published: October 24, 2018

USGS Science in Your Watershed

The U.S. Geological Survey's "Science in Your Watershed" Web site helps you find scientific information organized on a watershed basis. This information, coupled with observations and measurements made by the watershed groups, provides a powerful foundation for characterizing, assessing, analyzing, and maintaining the status and health of a watershed.

Attribution: Water Resources
Date published: October 24, 2018

USGS water watch

View current streamflow, drought, flood, and past flow/runoff conditions.

Attribution: Water Resources
Date published: October 24, 2018

USGS Geolog Locator

The USGS Geolog is a web based tool for storage and retrieval of borehole-geophysical logs and related data files.

Attribution: Water Resources
Date published: October 24, 2018

Environmental Data Discovery and Transformation

Welcome to the Environmental Data Discovery and Transformation (EnDDaT) service; a system you can use to discover data from our natural environment. This tool accesses data from a variety of data sources, compiles and processes the data, and performs common transformations. The result is that environmental data from multiple sources is sorted into a single table that aids model development....

Attribution: Water Resources
Date published: October 24, 2018

USGS Geo Data Portal

The Geo Data Portal (GDP) provides access to numerous datasets, including gridded data for climate and land use. Datasets can be subsetted or sumarized before download using several algorithms, and these algorithms can also be applied to other datasets hosted elsewhere.Users can interact with the GDP through the tools listed.

Attribution: Water Resources
Date published: October 24, 2018

USGS Water-Quality Data for the Nation

Access USGS water quality current conditions, historical observations, daily data, statistics, peak flow data, and field measurements.

Attribution: Water Resources
Date published: October 24, 2018

USGS Water Use Data for the Nation

Access USGS water use current conditions, historical observations, daily data, statistics, peak flow data, and field measurements.

Attribution: Water Resources
Date published: October 24, 2018

USGS Water-Data Site Information for the Nation

Information for each site in the USGS data base can be retrieved for viewing and for download and import into other software, including GIS software. Includes links to all water data available for individual sites.

Attribution: Water Resources
Date published: October 24, 2018

National Water Information System: Mapper

This mapper shows all available National Water Information System USGS sites. You can search by address, place name, site number, territory or region.

Attribution: Water Resources

Downloadable spatial data files for exploration and analysis.

Filter Total Items: 29
Date published: October 1, 2018

Regional Hydrologic Unit Map

Boundary Descriptions and Names of Regions, Subregions, Accounting Units and Cataloging Units

Attribution: Water Resources
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
Filter Total Items: 15,197
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

Land-cover changes associated with oil and natural-gas production and concentrations of selected constituents in surface-water and streambed-sediment samples collected upstream from and within an area of oil and natural-gas production, south Texas, 2008–17

The extensive development of oil and natural-gas resources in south Texas during the past 10 years has led to questions regarding possible environmental effects of processes associated with oil and natural-gas production, in particular the process of hydraulic fracturing, on water and other natural resources. Part of the lower San Antonio River...

Crow, Cassi L.; Opsahl, Stephen P.; Pedraza, Diana E.; Pease, Emily C.; Kushnereit, Ross K.
Crow, C.L., Opsahl, S.P., Pedraza, D.E., Pease, E.C., and Kushnereit, R.K., 2018, Land-cover changes associated with oil and natural-gas production and concentrations of selected constituents in surface-water and streambed-sediment samples collected upstream from and within an area of oil and natural-gas production, south Texas, 2008–17: U.S. Geological Survey Scientific Investigations Report 2018–5119, 52 p., https://doi.org/10.3133/sir20185119.

Year Published: 2018

Hydrology and hydrodynamics on the Sacramento River near the Fremont Weir, California—Implications for juvenile salmon entrainment estimates

Estimates of fish entrainment on the Sacramento River near the Fremont Weir are a critical component in determining the feasibility and design of a proposed notch in the weir to increase access to the Yolo Bypass, a seasonal floodplain of the Sacramento River. Detailed hydrodynamic and velocity measurements were made at a river bend near the...

Stumpner, Paul R.; Blake, Aaron R.; Burau, Jon R.
Stumpner, P.R., Blake, A.R., and Burau, J.R., 2018, Hydrology and hydrodynamics on the Sacramento River near the Fremont Weir, California—Implications for juvenile salmon entrainment estimates: U.S. Geological Survey Scientific Investigations Report 2018–5115, 50 p., https://doi.org/sir20185115.

Year Published: 2018

Assessment of managed aquifer recharge at Sand Hollow Reservoir, Washington County, Utah, updated to conditions through 2016

Sand Hollow Reservoir in Washington County, Utah, was completed in March 2002 and is operated primarily for managed aquifer recharge by the Washington County Water Conservancy District. From 2002 through 2016, surface-water diversions of about 256,000 acre-feet (acre-ft) to Sand Hollow Reservoir have allowed the reservoir to remain nearly full...

Marston, Thomas M.; Nelson, Nora C.
Marston, T.M., and Nelson, N.C., 2018, Assessment of managed aquifer recharge at Sand Hollow Reservoir, Washington County, Utah, updated to conditions through 2016: U.S. Geological Survey Open-File Report 2018–1140, 38 p., https://doi.org/10.3133/ofr20181140.

Year Published: 2018

Hydrology-driven chemical loads transported by the Green River to the Lower Duwamish Waterway near Seattle, Washington, 2013–17

The sediments in the Lower Duwamish Waterway Superfund site in Seattle, Washington, are contaminated with chemicals including metals such as arsenic, polychlorinated biphenyls (PCBs), carcinogenic polycyclic aromatic hydrocarbons (cPAHs), and dioxins/furans from decades of intense anthropogenic activities. The U.S. Geological Survey, in...

Conn, Kathleen E.; Black, Robert W.; Senter, Craig A.; Peterson, Norman T.; Vanderpool-Kimura, Ann
Conn, K.E., Black, R.W., Senter, C.A., Peterson, N.T., and Vanderpool-Kimura, A., 2018, Hydrology-driven chemical loads transported by the Green River to the Lower Duwamish Waterway near Seattle, Washington, 2013–17: U.S. Geological Survey Scientific Investigations Report 2018-5133, 37 p., https://doi.org/10.3133/sir20185133.

Year Published: 2018

Nutrient enrichment in wadeable urban streams in the piedmont ecoregion of the southeastern United States

The U.S. Geological Survey (USGS) Southeastern Stream Quality Assessment (SESQA) collected weekly samples for nitrogen and phosphorus in 76 wadeable streams in the urbanized Piedmont ecoregion of the Southeastern United States, during April–June 2014. Total nitrogen (TN) concentrations in excess of EPA guidelines and statistically greater than at...

Journey, Celeste A.; Van Metre, Peter C.; Button, Daniel T.; Clark, Jimmy M.; Munn, Mark D.; Nakagaki, Naomi; Qi, Sharon L.; Waite, Ian R.; Bradley, Paul M.

Year Published: 2018

Bank‐derived material dominates fluvial sediment in a suburban Chesapeake Bay watershed

Excess fine sediment is a leading cause of ecological degradation within the Chesapeake Bay watershed. To effectively target sediment mitigation measures, it is necessary to identify and quantify the delivery of sediment sources to local waterbodies.This study examines the contributions of sediment sources within Upper Difficult Run, a...

Cashman, Matthew J.; Gellis, Allen; Gorman Sanisaca, Lillian; Noe, Gregory; Cogliandro, Vanessa; Baker, Anna

Year Published: 2018

Concentrations of lead and other inorganic constituents in samples of raw intake and treated drinking water from the municipal water filtration plant and residential tapwater in Chicago, Illinois, and East Chicago, Indiana, July–December 2017

The U.S. Geological Survey (USGS) Environmental Health Mission Area (EHMA) is providing comprehensive science on sources, movement, and transformation of contaminants and pathogens in watershed and aquifer drinking-water supplies and in built water and wastewater infrastructure (referred to as the USGS Water and Wastewater Infrastructure project)...

Romanok, Kristin M.; Kolpin, Dana W.; Meppelink, Shannon M.; Focazio, Michael J.; Argos, Maria; Hollingsworth, Mary E. ; McCleskey, R. Blaine; Putz, Andrea R.; Stark, Alan ; Weis, Christopher P.; Zehraoui, Abderrahman; Bradley, Paul M.
Romanok, K.M., Kolpin, D.W., Meppelink, S.M., Focazio, M.J., Argos, M., Hollingsworth, M.E., McCleskey, R.B., Putz, A.R., Stark, A., Weis, C.P., Zehraoui, A., and Bradley, P.M., 2018, Concentrations of lead and other inorganic constituents in samples of raw intake and treated drinking water from the municipal water filtration plant and residential tapwater in Chicago, Illinois, and East Chicago, Indiana, July–December 2017: U.S. Geological Survey Open-File Report 2018–1071, 10 p., https://doi.org/10.3133/ofr20181071.

Year Published: 2018

Methods used for the collection and analysis of chemical and biological data for the Tapwater Exposure Study, United States, 2016–17

In 2016, the U.S. Geological Survey (USGS) Environmental Health Mission Area, initiated the Tapwater Exposure Study as part of an infrastructure project to assess human exposure to potential threats from complex mixtures of contaminants. In the pilot phase (2016), samples were collected from 11 States throughout the United States, and in the...

Romanok, Kristin M.; Kolpin, Dana W.; Meppelink, Shannon; Argos, Maria; Brown, Juliane B.; Devito, Michael J.; Dietze, Julie E.; Givens, Carrie E.; Gray, James L.; Higgins, Christopher P.; Hladik, Michelle L.; Iwanowicz, Luke R.; Loftin, Keith A.; McCleskey, R. Blaine; McDonough, Carrie A.; Meyer, Michael T.; Strynar, Mark J.; Weis, Christopher P.; Wilson, Vickie S.; Bradley, Paul M.
Romanok, K.M., Kolpin, D.W., Meppelink, S.M., Argos, M., Brown, J.B., DeVito, M.J., Dietze, J.E., Givens, C.E., Gray, J.L., Higgins, C.P., Hladik, M.L., Iwanowicz, L.R., Loftin, K.A., McCleskey, R.B., McDonough, C.A., Meyer, M.T., Strynar, M.J., Weis, C.P., Wilson, V.S., and Bradley, P.M., 2018, Methods used for the collection and analysis of chemical and biological data for the Tapwater Exposure Study, United States, 2016–17: U.S. Geological Survey Open-File Report 2018–1098, 79 p., https://doi.org/10.3133/ofr20181098.

Year Published: 2018

Unsaturated zone CO2, CH4, and δ13C-CO2 at an arid region low-level radioactive waste disposal site

Elevated tritium, radiocarbon, Hg, and volatile organic compounds associated with low-level radioactive waste (LLRW) at the USGS Amargosa Desert Research Site (ADRS) have stimulated research on factors and processes that affect contaminant gas distribution and transport. Consequently, we examined the sources, mixing, and biogeochemistry of CO2...

Conaway, Christopher; Walvoord, Michelle Ann; Thomas, Randall B.; Green, Christopher; Baker, R.J.; Thordsen, James J.; Stonestrom, David A.; Andraski, Brian J.

Year Published: 2018

Changes in growth of Rainbow Trout in a Catskill Mountain Reservoir following Alewife and White Perch Introductions

Rainbow Trout Oncorhynchus mykiss were introduced to the Esopus Creek watershed in the Catskill Mountains of New York in the early 1880s. This introduction created a renowned naturalized fishery that remains important to the local economy today. The objective of this study was to determine whether the growth and condition of Rainbow...

George, Scott D.; Baldigo, Barry P.; Flaherty, Michael J.; Randall, Eileen A.
Changes in Growth of Rainbow Trout in a Catskill Mountain Reservoir Following Alewife and White Perch Introductions. (2018). North American Journal of Fisheries Management., 38(5), 1027–1038. https://doi.org/10.1002/nafm.10203

Year Published: 2018

StreamStats for South Carolina: A multipurpose water-resources web application

The U.S. Geological Survey (USGS) developed the South Carolina StreamStats application in cooperation with the South Carolina Department of Transportation. StreamStats (https://water.usgs.gov/osw/streamstats/) is a map-based web application that provides analytical tools useful for water-resources planning and management and many engineering...

Feaster, Toby D.; Clark, Jimmy M.; Kolb, Katharine R.
Feaster, T.D., Clark, J.M., and Kolb, K.R., 2018, StreamStats for South Carolina—A multipurpose water-resources web application: U.S. Geological Survey Fact Sheet 2018–3070, 5 p., https://doi.org/10.3133/fs20183070.

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: 26
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: 1,289
Brackish water desalination facility in Harlingen, Texas.
December 31, 2018

Brackish water desalination facility in Harlingen, Texas.

Brackish water desalination facility in Harlingen, Texas. The plant was built in 2007 and has a capacity of 2.25 million gallons per day. Source: North Cameron Regional Water Supply Corporation

Trends in population and freshwater withdrawals by source, 1950–2015
December 31, 2018

Trends in population and freshwater withdrawals by source, 1950–2015

Trends in population and freshwater withdrawals by source, 1950–2015

Regulation in StreamStats screenshot
December 31, 2018

Regulation in StreamStats screenshot

Regulation in StreamStats screenshot

Attribution: Water Resources
USGS WAUSP Water Census: Map of Regional Groundwater Availability Stud
December 31, 2018

USGS WAUSP Water Census: Map of Regional Groundwater Availability Stud

USGS WAUSP Water Census: Map of Regional Groundwater Availability Studies

Power Generation Plant
December 31, 2018

Power Generation Plant

Source: U.S. Nuclear Regulatory Commission

Trends in total water withdrawals by water-use category, 1950–2015
December 31, 2018

Trends in total water withdrawals by water-use category, 1950–2015

Trends in total water withdrawals by water-use category, 1950–2015

Upstream Network Trace in StreamStats screenshot
December 31, 2018

Upstream Network Trace in StreamStats screenshot

Upstream Network Trace in StreamStats screenshot

Attribution: Water Resources
Components of a simple water budget for part of a watershed
December 31, 2018

Components of a simple water budget for part of a watershed

Components of a simple water budget for part of a watershed, from Healy, R.W., Winter, T.C., LaBaugh, J.W., and Franke, O.L., 2007, Water budgets: Foundations for effective water-resources and environmental management: U.S. Geological Survey Circular 1308.

USGS WAUSP Water Census: Map of National Brackish Groundwater Assessment
December 31, 2018

USGS WAUSP Water Census: Map of National Brackish Groundwater Assessme

USGS WAUSP Water Census: Map of National Brackish Groundwater Assessment from USGS professional paper 1833 "Brackish Groundwater In The United States."

Attribution: Water Resources
Saline Groundwater Use in the U.S.
December 31, 2018

Saline Groundwater Use in the U.S.

Data show that use of saline groundwater has been increasing since 1985.

Brackish Groundwater discharge through a spring in Death Valley, CA
December 31, 2018

Brackish Groundwater discharge through a spring in Death Valley, CA

Groundwater in basin-fill aquifers of the Southwest often increases in dissolved-solids content as it travels along its flow path as a result of geochemical interactions with the aquifer matrix and through evaporative processes. At the end of its flowpath, groundwater may be brackish or saline and discharges to the surface through springs such this one in Death Valley

...
Attribution: Water Resources
Groundwater withdrawals in 2015
December 31, 2018

Groundwater withdrawals in 2015

Groundwater withdrawals in 2015

Filter Total Items: 380
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.

Date published: September 10, 2018

USGS Is Installing About 160 Sensors Along NC, SC Coasts For Florence

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: September 10, 2018

USGS Installing About 160 Storm-Tide Sensors Along North and South Carolina Coasts Before Hurricane Florence Arrives

Reporters: Do you want to accompany a USGS crew as they work in the field to install storm-tide sensors before Hurricane Florence’s arrival?

If so, please contact John Shelton for NC and SC at 803-750-6112 or jmshelto@usgs.gov

Attribution: Water Resources
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