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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: July 9, 2018

Post-Harvey Report Provides Inundation Maps and Flood Details on “Largest Rainfall Event Recorded in US History”

Nineteen inundation maps and detailed flood information from Hurricane Harvey are now available from the U.S. Geological Survey, in cooperation with the Federal Emergency Management Agency. Hurricane Harvey was the most significant rainfall event in U.S. history, both in scope and peak rainfall amounts, since records began in the 1880s.

Date published: June 26, 2018

Media Advisory: Witness Groundbreaking River Measurements Collected from the Sky

This Thursday, scientists with the U.S. Geological Survey and NASA will test new technologies near Parkdale, Colorado, located west of Cañon City, to better understand how unmanned aerial systems (UAS), or drones, may be used to measure water depth, water levels and velocity from the sky. 

Date published: May 31, 2018

USGS Hurricane Response Met Challenges in 2017, Prepares for 2018

No one has a crystal ball to foresee what will happen during the 2018 hurricane season that begins June 1, but NOAA forecasters say there’s a 75 percent chance this hurricane season will be at least as busy as a normal year, or busier.

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.

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Filter Total Items: 164
Date published: July 30, 2018
Status: Active

Office of the Delaware River Master

In 1954, the U.S. Supreme Court issued a Decree in State of New Jersey v. State of New York and City of New York in which the Court designated the position of the Delaware River Master.  The Court directed that the River Master perform multiple duties and functions in administering the Decree, including the conserving the waters of the river and the Delaware River watershed; compiling data on...

Attribution: Water Resources
Date published: July 28, 2018
Status: Active

National Streamflow Information Program

The U.S. Geological Survey (USGS) started its first streamgage in 1889 on the Rio Grande River in New Mexico to help determine if there was adequate water for irrigation purposes to encourage new development and western expansion. The National Streamflow Information Program (NSIP) was started in 2002 in response to Congressional and stakeholder concerns about the ongoing decrease in the number...

Contacts: Cory Angeroth
Date published: July 27, 2018
Status: Active

Next Generation Water Observing System: Delaware River Basin

The USGS next-generation water observing system will provide high-fidelity, real-time data on water quantity and quality necessary to support modern water prediction and decision support systems for water emergencies and daily water operations. The Delaware River Basin pilot provides an opportunity to develop the NextGen observing system in a nationally important, complex interstate river...

Date published: June 21, 2018
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
Date published: June 19, 2018
Status: Active

Hydrologic and Erosion Responses of Burned Watersheds

The enhanced probability of catastrophic wildfires has increased our need to understand the risk of floods, erosion, and debris and contaminant transport in burned watersheds. This project investigates the relation between rainfall intensity and peak discharge; erosion and deposition processes; and water-quality impacts to minimize the loss of life and property resulting from post-wildfire...

Attribution: Water Resources
Date published: June 5, 2018
Status: Completed

Impervious Surfaces and Flooding

The banner picture shows it all — Superhighways! Streets and pavement! Driveways! House roofs! These are all "impervious surfaces"; impervious to the water from precipitation. When it rains in this locale, water no longer seeps into the ground, but now runs off into storm sewers and then quickly into local creeks. Localized flooding is too often the result.

Attribution: Water Resources
Date published: April 26, 2018
Status: Archived

Development of Regional Curves Relating Bankfull-Channel Geometry and Discharge to Drainage Area for Hydrophysiographic Regions in Wyoming

The Watershed Program in cooperation with the U.S. Geological Survey (USGS), Wyoming Water Science Center developed regional curves that relate bankfull channel dimensions and discharge to drainage area for hydrophysiographic regions in Wyoming where data are currently lacking. Regional curves are useful aids for estimating bankfull discharge and related channel dimensions at ungaged sites,...

Date published: April 18, 2018
Status: Active

Birdsall-Dreiss Distinguished Lecturer: Clifford I. Voss

Clifford Voss was selected as the 2015 Birdsall-Dreiss Distinguished Lecturer by the Geological Society of America. Cliff, an internationally recognized expert in groundwater modeling, has over 35 years of project management, implementation, field work and research experience in groundwater systems. Upon request, Cliff will present general-audience lectures on groundwater or ground ice/...

Attribution: Water Resources
Date published: April 14, 2018

Large River Science

Expertise in large river research provides science information to inform decisions on river management and restoration in the Midwest Region. Connectivity is a fundamental concept in river ecology and refers to opportunities for water to flow along and through riverine ecosystems. It is considered one of the primary drivers of river productivity, biological diversity and ecosystem health.

Attribution: Water Resources, Midwest
Date published: March 28, 2018
Status: Archived

Sweetwater County Water Resources Study

In cooperation with the Wyoming State Engineer, the USGS conducted a study of the water resources of Sweetwater County, Wyoming. This study followed the general plan of previous "County Studies". Surface water and ground water resources were evaluated through a combined approach that analyzed and summarized existing data and, as a consequence of the data analysis, identified key data gaps and...

Date published: March 27, 2018
Status: Archived

Streamflow Statistics for Unregulated and Regulated Conditions for Selected Locations on the Yellowstone, Tongue, Powder, and Bighorn Rivers, Montana

Major floods in 1996-1997 on the Yellowstone River intensified public debate over the effects of human activities on the Yellowstone River. The Yellowstone River Conservation District Council partnered with the U.S. Army Corps of Engineers to conduct a cumulative-effects study on the Yellowstone. For that study, the USGS calculated streamflow statistics for unregulated (no development) and...

Date published: March 27, 2018
Status: Active

Water Quality of San Francisco Bay

For over three decades, the USGS has maintained a program of research and observation in San Francisco Bay, including regular measurements of water quality along a 145-kilometer transect spanning the length of the entire estuarine system from the South San Francisco Bay to the Sacramento River.

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: 73
Date published: July 5, 2018

Coastal Change Hazards Portal

Interactive access to coastal change science and data for our Nation’s coasts. Information and products are organized within three coastal change hazard themes: 1) extreme storms, 2) shoreline change, and 3) sea-level rise. Each data item represents an individual research product, with some items grouped together as aggregates to show the breadth of the topic and make it easy to explore.

Date published: July 5, 2018

Key Findings for Scenario-Based Assessment for Hurricanes

Percentage of sandy beaches very likely (probability > 0.9) to experience erosion associated with collision, overwash, and inundation during category 1-5 hurricane landfall.

Date published: July 5, 2018

Oblique Aerial Photography Viewer

Obique photos offer a unique perspective of the coast. Features such as beach erosion or accretion, dune erosion and overwash can all be clearly characterized in this imagery. It also documents coastal infrastructure, as well as the damage that infrastructure may incur as the result of an impacting hurricane. 

Date published: July 5, 2018

Total Water Level and Coastal Change Forecast Viewer

Total water level (TWL) at the shoreline is the combination of tides, surge, and wave runup. A forecast of TWL is an estimate of the elevation where the ocean will meet the coast and can provide guidance on potential coastal erosion and flooding hazards.

Date published: July 5, 2018

USGS SWaTH Network

SWaTH is a system of flood-hardened, real-time telemetered tide gages, rapid deployment gages, and storm tide sensors deployed in integrated network configurations along the Northeastern Atlantic Coast from North Carolina to Maine.

Date published: July 5, 2018

USGS Flood Inundation Mapper

USGS Flood Inundation Maps , along with Internet information regarding current stage from the USGS streamgage, provide emergency management personnel and residents with information that is critical for flood-response activities, such as evacuations and road closures, as well as for post-flood recovery efforts.

Date published: July 2, 2018

StreamStats Batch Processor Tool

This tool produces shapefiles that contain the delineated basins, basin characteristics, and flow statistics for multiple sites requested at once by users. Before this tool can be used, the the points of interest will likely need to be edited in GIS so that they are coincident with the stream grid used by StreamStats for delineations and saved to a shapefile. 

Attribution: Water Resources
Date published: May 11, 2018

National Water Information System web interface (NWISweb)

The USGS investigates the occurrence, quantity, quality, distribution, and movement of surface and underground waters. NWIS provides access to real-time and historical water-resources data collected at approximately 1.9 million sites in all 50 states, the District of Columbia, Puerto Rico, the Virgin Islands, Guam, American Samoa, and the Commonwealth of the Northern Mariana Islands.

Attribution: Water Resources
Date published: March 28, 2018

USGS Flood Event Viewer

The USGS operates an event-based mobile storm-surge sensor network to capture information about coastal and inland storm tides.  View data from all events in the map viewer or download data by event, state, and more.

Date published: January 17, 2018

Estimating Drought Streamflow Probabilities for Virginia Streams

Maximum likelihood logistic regression is used to estimate drought probabilities for selected Virginia rivers and streams. Hydrologic drought streamflow probabilities for summer months are provided as functions of streamflows during the previous winter months. This application allows the display and query of these drought streamflow probabilities for Virginia streams.

Date published: January 8, 2018

Models of the Klamath River from Link River to Keno Dam

Models of the Klamath River from Link River to Keno Dam were constructed and calibrated by the U.S. Geological Survey for calendar years 2006-09.

Downloadable spatial data files for exploration and analysis.

Filter Total Items: 28
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 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: 14,549
Year Published: 2018

An Initial Comparison of Pesticides and Amphibian Pathogens Between Natural and Created Wetlands in the New Jersey Pinelands, 2014-2016

A study conducted by the U.S. Geological Survey, in cooperation with the New Jersey Pinelands Commission and Montclair State University, was designed to compare pesticide concentrations and the presence and prevalence of amphibian pathogens between natural ponds and two types of created wetlands, excavated ponds and stormwater basins, throughout...

Smalling, Kelly L.; Bunnell, John F.; Cohl, Jonathan; Romanok, Kristin M.; Hazard, Lisa; Monsen, Kirsten; Akob, Denise M.; Hansen, Angela; Hladik, Michelle L.; Abdallah, Nicole; Ahmed, Quratulain; Assan, Araba; De Parsia, Matthew; Griggs, Amaryl; McWayne-Holmes, Megan; Patel, Naisargi; Sanders, Corey; Shrestha, Yesha; Stout, Sean; Williams, Brianna
Smalling, K.L., Bunnell, J.F., Cohl, J., Romanok, K.M., Hazard, L., Monsen, K., Akob, D.M., Hansen, A., Hladik, M.L., Abdallah, N., Ahmed, Q., Assan, A., De Parsia, M., Griggs, A., McWayne-Holmes, M., Patel, N., Sanders, C., Shrestha, Y., Stout, S., and Williams, B., 2018, An initial comparison of pesticides and amphibian pathogens between natural and created wetlands in the New Jersey Pinelands, 2014–16: U.S. Geological Survey Open-File Report 2018–1077, 18 p., https://doi.org/10.3133/ofr20181077.

Year Published: 2018

Hydrologic Conditions and Simulation of Groundwater and Surface Water in the Great Dismal Swamp of Virginia and North Carolina

The U.S. Geological Survey (USGS), in cooperation with the U.S Fish and Wildlife Service, has investigated the hydrology of the Great Dismal Swamp (Swamp) National Wildlife Refuge (Refuge) in Virginia and North Carolina and developed a three-dimensional numerical model to simulate groundwater and surface-water hydrology. The model was developed...

Eggleston, John (Jack) R.; Decker, Jeremy D.; Finkelstein, Jason S.; Wurster, Frederic C.; Misut, Paul E.; Sturtevant, Luke P.; Speiran, Gary K.
Eggleston J.R., Decker, J.D., Finkelstein, J.S., Wurster, F.C., Misut, P.E., Sturtevant, L.P., and Speiran, G.K., 2018, Hydrologic conditions and simulation of groundwater and surface water in the Great Dismal Swamp of Virginia and North Carolina: U.S. Geological Survey Scientific Investigations Report 2018-5056, 67 p., https://doi.org/10.3133/sir20185056.

Year Published: 2018

Status of Groundwater-Level Altitudes and Long-term Groundwater-Level Changes in the Chicot, Evangeline, and Jasper Aquifers, Houston-Galveston Region, Texas, 2018

Since the early 1900s, most of the groundwater withdrawals in the Houston-Galveston region, Texas, have been from the three primary aquifers that compose the Gulf Coast aquifer system—the Chicot, Evangeline, and Jasper aquifers. Withdrawals from these aquifers are used for municipal supply, industrial, and irrigation purposes. This report,...

Shah, Sachin D.; Ramage, Jason K.; Braun, Christopher L.
Shah, S.D., Ramage, J.K., and Braun, C.L., 2018, Status of groundwater-level altitudes and long-term groundwater-level changes in the Chicot, Evangeline, and Jasper aquifers, Houston-Galveston region, Texas, 2018: U.S. Geological Survey Scientific Investigations Report 2018–5101, 18 p., https://doi.org/10.3133/sir20185101.

Year Published: 2018

Stream‐centric methods for determining groundwater contributions in karst mountain watersheds

Climate change influences on mountain hydrology are uncertain, but likely to be mediated through changes in subsurface hydrologic residence times and flowpaths. The heterogeneity of karst aquifers add complexity in assessing the resiliency of these water sources to perturbation, suggesting a clear need to quantify contributions from and losses to...

Neilson, Bethany; Tennant, Hyrum; Barnes, Michelle; Stout, Trinity; Miller, Matthew P.; Gabor, Rachel S.; Jameel, Yusef; Millington, Mallory; Gelderloos, Andrew; Bowen, Gabriel J.; Brooks, Paul D.
Neilson, B.T., H. Tennant, T.L. STout, M. Miller, R.S. Gabor, Y. Jameel, M. Millington, A. Gelderloos, G. Bowen, and P. Brooks, 2018, Stream-centric methods for determining groundwater contributions in karst mountain watersehds: Water Resources Research, doi:10.1029/2018WR022664.

Year Published: 2018

Effect of spatial and temporal scale on simulated groundwater recharge investigations

Hydrologic model input datasets such as climate, land use, elevation, soil, and geology information are available in a range of scales for use in water resources investigations. Smaller spatial and temporal scale input data allow groundwater recharge models to simulate more physically realistic processes and presumably result in more accurate...

Tillman, Fred; Pruitt, Tom; Gangopadhyay, Subhrendu
Tillman, F.D, Pruitt, T., and Gangopadhyay, S., 2018, Effect of spatial and temporal scale on simulated groundwater recharge investigations: Advances in Water Resources, 119, p. 257-270

Year Published: 2018

Mercury methylation and bioaccumulation in Sinclair Inlet, Kitsap County, Washington

The U.S. Geological Survey evaluated the transformation of mercury to bioavailable methylmercury in Sinclair Inlet, Kitsap County, Washington, and assessed the effect of the transformation processes on the mercury burden in marine organisms and sediment. In August 2008, samples of sediment, water, and biota from six sites in Sinclair Inlet and...

Paulson, A.J.; Marvin-DiPasquale, M.C.; Moran, P.W.; DeWild, J.F.; Stewart, J.F.; Toft, J.; Agee, J.L.; Kakouros, E.; Kieu, L.H.; Carter, B.; Sheibley, R.W.; Cordell, J.; Krabbenhoft, D. P.
Paulson, A.J., Marvin-DiPasquale, M.C., Moran, P.W., Stewart, A.R., DeWild, J.F., Toft, J., Agee, J.L., Kakouros, E., Kieu, L.H., Carter, B., Sheibley, R.W., Cordell, J., and Krabbenhoft, D.P., 2018, Mercury methylation and bioaccumulation in Sinclair Inlet, Kitsap County, Washington: U.S. Geological Survey Scientific Investigations Report 2018–5063, 63 p., 1 app., https://doi.org/10.3133/sir20185063.

Year Published: 2018

Evaluation of the effects of changes in the timing of water-level drawdowns on the export of phosphorus from Little St. Germain Lake, Wisconsin

Little St. Germain Lake is a 978-acre, multibasin lake in Vilas County, Wisconsin. In the interest of improving its water quality, the Little St. Germain Lake Protection and Rehabilitation District initiated a cooperative study with the U.S. Geological Survey to describe the current phosphorus input into and export from Little St. Germain Lake and...

Dantoin, Eric D.; Robertson, Dale M.
Dantoin, E.D., and Robertson, D.M., 2018. Evaluation of the effects of changes in the timing of water-level drawdowns on the export of phosphorus from Little St. Germain Lake, Wisconsin: U.S. Geological Survey Scientific Investigations Report 2018–5078, 14 p., https://doi.org/10.3133/sir20185078.

Year Published: 2018

Manure and fertilizer inputs to land in the Chesapeake Bay watershed, 1950–2012

Understanding changing nutrient concentrations in surface waters requires quantitative information on changing nutrient sources in contributing watersheds. For example, the proportion of nutrient inputs reaching streams and rivers is directly affected by when and where those nutrients enter the landscape. The goal of this report is to contribute...

Keisman, Jennifer L.D.; Devereux, Olivia H.; LaMotte, Andrew E.; Sekellick, Andrew J.; Blomquist, Joel D.
Keisman, J.L.D., Devereux, O.H., LaMotte, A.E., Sekellick, A.J., and Blomquist, J.D., 2018, Manure and fertilizer inputs to land in the Chesapeake Bay watershed, 1950–2012: U.S. Geological Survey Scientific Investigations Report 2018–5022, 37 p., https://doi.org/10.3133/sir20185022.

Year Published: 2018

Variations on a method for evaluating decadal-scale changes in the groundwater quality of two GAMA coastal study units 2004–14, California GAMA Priority Basin Project

Decadal changes in groundwater quality in two study units on the north-central California coast were evaluated by the Priority Basin Project (PBP) of the Groundwater Ambient Monitoring and Assessment (GAMA) Program. Groundwater samples collected from wells during 2004–05 were compared on a pair-wise basis to samples collected from the same wells...

Kent, Robert
Kent, R., 2018, Variations on a method for evaluating decadal-scale changes in the groundwater quality of two GAMA coastal study units 2004–14, California GAMA Priority Basin Project: U.S. Geological Survey Scientific Investigations Report 2018–5088, 75 p., https://doi.org/10.3133/sir20185088.

Year Published: 2018

Assessment of water resources in areas that affect the habitat of the endangered Hine’s emerald dragonfly in the Lower Des Plaines River Valley, Illinois

Review of previous investigations indicates that potential decreases in groundwater recharge and increased groundwater extraction in the vicinity of the Lower Des Plaines River Valley in Will County, Illinois, may reduce the amount of groundwater flow in the Silurian aquifer in this area. Groundwater discharge from the Silurian aquifer to wetlands...

Kay, Robert T.; Gahala, Amy M.; Bailey, Clinton
Kay, R.T., Gahala, A.M., and Bailey, C., 2018, Assessment of water resources in areas that affect the habitat of the endangered Hine’s emerald dragonfly in the Lower Des Plaines River Valley, Illinois: U.S. Geological Survey Scientific Investigations Report 2018–5074, 104 p., https://doi.org/10.3133/sir20185074.

Year Published: 2018

Mechanisms of earthquake‐induced chemical and fluid transport to carbonate groundwater springs after earthquakes

Mechanisms by which hydrochemical changes occur after earthquakes are not well documented. We use the 2016–2017 central Italy seismic sequence, which caused notable hydrochemical transient variations in groundwater springs to address this topic, with special reference to effects on fractured carbonate aquifers. Hydrochemistry measured before and...

Rosen, Michael R.; Binda, Gilberto; Archer, Claire; Pozzi, Andrea; Michetti, Alessandro; Noble, Paula
Attribution: Water Resources

Year Published: 2018

Brackish groundwater and its potential as a resource in the southwestern United States

Secure, reliable, and sustainable water resources are fundamental to food production, energy independence, and the health of humans and ecosystems. But the large-scale development of fresh groundwater resources has stressed aquifers in some areas, causing declines in the amount of groundwater in storage and decreases in discharge to surface-water...

Anning, David W.; Beisner, Kimberly R.; Paul, Angela P.; Stanton, Jennifer S.; Thiros, Susan A.
Anning, D.W., Beisner, K.R., Paul, A.P., Stanton, J.S., and Thiros, S.A., 2018, Brackish groundwater and its potential as a resource in the southwestern United States: U.S. Geological Survey Fact Sheet 2018–3010, 6 p., https://doi.org/10.3133/fs20183010.

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: 17
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: 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 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: August 22, 2016

MODFLOW-USG model of groundwater flow in the Wood River Valley aquifer system in Blaine County, Idaho

Model archive for Wood River Valley groundwater-flow model

Date published: August 22, 2016

wrv R package repository

The R package wrv is for processing the groundwater-flow model of the Wood River Valley (WRV) aquifer system, south-central Idaho. The groundwater-flow model is described in the associated model report and model archive. Included in the package is MODFLOW-USG version 1.3, a U.S. Geological Survey (USGS) computer code that solves the groundwater-flow equation.

Date published: July 4, 2016

Water Use Site Retrieval - Lower Mississippi Gulf Arkansas

In 1977, the Congress of the United States recognized the need for uniform, current, and reliable information on water use and directed the U.S. Geological Survey (USGS) to establish a National Water-Use Information Program (NWUIP) to complement the Survey's data on the availability and quality of the Nations water resources.

Date published: June 29, 2016

Groundwater Age Mixtures and Contaminant Trends Tool (GAMACTT)

The USGS Groundwater Age Mixtures and Contaminant Trends Tool (GAMACTT) can be used to explore the effects of basic aquifer properties and well configurations on groundwater age mixtures in groundwater discharge and on contaminant trends from varying nonpoint-source contaminant input scenarios.

Date published: June 29, 2016

TracerLPM

TracerLPM is an interactive Microsoft Excel workbook program used to evaluate groundwater age distributions from environmental tracer data by using lumped parameter models (LPMs).

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: 1,067
Public Supply Water Use in 2015
December 31, 2018

Public Supply Water Use in 2015

Public Supply Water Use in 2015

Domestic Water Use Withdrawals in 2015
December 31, 2018

Domestic Water Use Withdrawals in 2015

Domestic Water Use Withdrawals in 2015

Industrial water use in 2015
December 31, 2018

Industrial water use in 2015

Industrial water use in 2015

Irrigation water use withdrawals in 2015
December 31, 2018

Irrigation water use withdrawals in 2015

Irrigation water use withdrawals in 2015

Total water use withdrawals in 2015
December 31, 2018

Total water use withdrawals in 2015

Total water use withdrawals in 2015

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

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

Mining water withdrawals in 2015
December 31, 2018

Mining water withdrawals in 2015

Mining water withdrawals in 2015

Groundwater withdrawals in 2015
January 1, 2019

Groundwater withdrawals in 2015

Groundwater withdrawals in 2015

Livestock water withdrawals in 2015
December 31, 2018

Livestock water withdrawals in 2015

Livestock water withdrawals in 2015

Surface water withdrawals in 2015
January 1, 2019

Surface water withdrawals in 2015

Surface water withdrawals in 2015

Thermoelectric power water withdrawals for 2015
December 31, 2018

Thermoelectric power water withdrawals for 2015

Thermoelectric power water withdrawals for 2015

Filter Total Items: 367
Date published: July 9, 2018

Post-Harvey Report Provides Inundation Maps and Flood Details on “Largest Rainfall Event Recorded in US History”

Nineteen inundation maps and detailed flood information from Hurricane Harvey are now available from the U.S. Geological Survey, in cooperation with the Federal Emergency Management Agency. Hurricane Harvey was the most significant rainfall event in U.S. history, both in scope and peak rainfall amounts, since records began in the 1880s.

Date published: June 26, 2018

Media Advisory: Witness Groundbreaking River Measurements Collected from the Sky

This Thursday, scientists with the U.S. Geological Survey and NASA will test new technologies near Parkdale, Colorado, located west of Cañon City, to better understand how unmanned aerial systems (UAS), or drones, may be used to measure water depth, water levels and velocity from the sky. 

Date published: May 31, 2018

USGS Hurricane Response Met Challenges in 2017, Prepares for 2018

No one has a crystal ball to foresee what will happen during the 2018 hurricane season that begins June 1, but NOAA forecasters say there’s a 75 percent chance this hurricane season will be at least as busy as a normal year, or busier.

Date published: April 12, 2018

USGS Releases New Web-Based Groundwater Model Visualization Tool

A new U.S. Geological Survey groundwater model visualization tool is now available to help users visualize the inputs and outputs of complex groundwater models across the country.

Date published: April 12, 2018

New App for Lake Houston Provides Real-Time Stream and Water-Quality Data

Real-time water-quality, streamflow and water height information for Lake Houston and the surrounding San Jacinto watershed are now available from a new web application from the U.S. Geological Survey, done in cooperation with the City of Houston.

Date published: April 11, 2018

Public Invitation: The Scoop on Western South Dakota’s Vital Water Resources

Media and the public are invited to attend a free meeting about South Dakota water issues on Thursday, April 19, in Rapid City, South Dakota.

Date published: March 30, 2018

Bear Lake to Receive Water Quality and Weather Monitoring Equipment

Bear Lake will house water quality and weather monitoring equipment that will provide near real-time information to the public and water managers beginning in early April and continuing through 2022.

Date published: March 28, 2018

The 3D Elevation Program – Flood Risk Management

Flooding is the leading cause of Presidential disaster declarations. On average, the water hazard has resulted in more than 80 fatalities and cost the U.S. nearly $8 billion annually.

Date published: March 12, 2018

Media Advisory: Water Levels to be Measured in 1,300 Southern Idaho Wells

Data Will Provide a “Snapshot” of the Eastern Snake River Plain Aquifer

Date published: March 7, 2018

USGS Flood Experts Respond to High Water in Central, Northeastern U.S.

Crews from the U.S. Geological Survey have been in the field for weeks measuring flooding in the Midwest and in the Mississippi River watershed, and more recently flooding and storm tides on the Northern Atlantic coast, as higher temperatures, heavy rain, snowmelt and nor’easters affected numerous states. 

Date published: February 27, 2018

Reservoir Sediment Can be Used as Fracking Proppant

Instead of requiring costly dredging to remove sediment buildup behind water reservoirs and diversions, sediment from reservoirs in the Missouri River Basin could actually be used as fracking proppant feedstock, also known as frac sand, according to a recently published U.S. Geological Survey study