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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.
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
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.
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.
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...
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.
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.
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.
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...
Water-use terminology in the series of USGS water-use circulars, first published for the year 1950, has changed over time as illustrated here. Some categories were re-named but retained essentially the same definition, while other changes split existing categories or shifted components of one category to another. See the entries for these terms in the...
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...
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...
The USGS Hydrologic Instrumentation Facility (HIF) supports the water-resource monitoring efforts of USGS scientists and other Federal scientists by providing quality-assured hydrologic equipment and instrumentation support.
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
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.
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.
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.
Percentage of sandy beaches very likely (probability > 0.9) to experience erosion associated with collision, overwash, and inundation during category 1-5 hurricane landfall.
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.
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.
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.
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.
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.
Downloadable spatial data files for exploration and analysis.
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.
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.
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.
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.
Identifying management-relevant research priorities for responding to disease-associated amphibian declines
A research priority can be defined as a knowledge gap that, if resolved, identifies the optimal course of conservation action. We (a group of geographically distributed and multidisciplinary research scientists) used tools from nominal group theory and decision analysis to collaboratively identify and prioritize information...Campbell Grant, Evan H.; Adams, Michael J.; Fisher, Robert N.; Grear, Daniel A.; Halstead, Brian J.; Hossack, Blake R.; Muths, Erin L.; Richgels, Katherine L. D.; Russell, Robin E.; Smalling, Kelly; Waddle, J. Hardin; Walls, Susan C.; White, C. LeAnn
Determination of representative uranium and selenium concentrations from groundwater, 2016, Homestake Mining Company Superfund site, Milan, New Mexico
In 2016, the U.S. Geological Survey, in cooperation with the U.S. Environmental Protection Agency, collected data on isotopes, age dating, and geochemistry including aqueous uranium concentrations of samples from 20 locations in the vicinity of the Homestake Mining Company Superfund site near Milan, New Mexico. The 20 sampled locations include 19...Harte, Philip T.; Blake, Johanna M.; Becher, Kent D.
Groundwater-level, groundwater-temperature, and barometric-pressure data, July 2017 to February 2018, Hālawa Area, Oʻahu, Hawaiʻi
The Red Hill Bulk Fuel Storage Facility, operated by the U.S. Navy and located in the Hālawa area, Oʻahu, Hawaiʻi, includes 20 underground storage tanks that can hold a total of 250 million gallons of fuel. In January 2014, the U.S. Navy notified the Hawaiʻi Department of Health and U.S. Environmental Protection Agency of release of an estimated...Mitchell, Jackson N.; Oki, Delwyn S.
Flood-inundation maps for the South Platte River at Fort Morgan, Colorado, 2018
In 2017, the U.S. Geological Survey (USGS), in cooperation with the Colorado Water Conservation Board (CWCB), studied floods in the historic record to produce a library of flood-inundation maps for the South Platte River at Fort Morgan, Colorado. Digital flood-inundation maps for a 4.5-mile (7.2-kilometers) reach of the South Platte River at Fort...Kohn, Michael S.; Patton, Thuy T.
Variability of organic carbon content and the retention and release of trichloroethene in the rock matrix of a mudstone aquifer
Contaminants diffusing from fractures into the immobile porosity of the rock matrix are subject to prolonged residence times. Organic contaminants can adsorb onto organic carbonaceous materials in the matrix extending contaminant retention. An investigation of spatial variability of the fraction of organic carbon...Shapiro, Allen M.; Brenneis, Rebecca J.
Dissolved pesticide concentrations in the lower Sacramento River and its source waters, California, 2016
As part of a collaborative study designed to better understand water-quality conditions in the Sacramento River, surface-water samples were collected from the lower Sacramento River and five of its tributaries and then analyzed by the U.S. Geological Survey for a suite of 162 current-use pesticides and pesticide degradates. Samples were collected...Stout, Sean M.; Orlando, James L.; McWayne-Holmes, Megan; Sanders, Corey; Hladik, Michelle
Completion summary for borehole TAN-2312 at Test Area North, Idaho National Laboratory, Idaho
In 2017, the U.S. Geological Survey, in cooperation with the U.S. Department of Energy, drilled and constructed borehole TAN-2312 for stratigraphic framework analyses and long-term groundwater monitoring of the eastern Snake River Plain aquifer at the Idaho National Laboratory in southeast Idaho. The location of borehole TAN-2312 was selected...Twining, Brian V.; Bartholomay, Roy C.; Hodges, Mary K. V.
Geologic framework and hydrostratigraphy of the Edwards and Trinity aquifers within Hays County, Texas
The Edwards and Trinity aquifers are classified as major aquifers by the Texas Water Development Board and are major sources of water in south-central Texas, where Hays County is located. Detailed maps and descriptions of the geologic framework and hydrostratigraphic units (HSUs) of these karstic aquifers in Hays County are needed for water...Clark, Allan K.; Pedraza, Diana E.; Morris, Robert R.
Distribution of mining-related trace elements in streambed and flood-plain sediment along the middle Big River and tributaries in the Southeast Missouri Barite District, 2012–15
Lead mining first began in the Big River watershed during the 1700s. Lead was the primary metal mined throughout most of the 1700s and early 1800s and it continued to be mined until the mid-1900s. Barite mining began in the middle part of the watershed in the mid- to late 1800s. Although considerable attention has been given to concentrations of...Smith, David C.; Schumacher, John G.
Assessment of environmental flows in the middle Verde River watershed, Arizona
This report summarizes analyses of middle Verde River watershed environmental flows detailed in U.S. Geological Survey Scientific Investigations Report 2017-5100, “Preliminary synthesis and assessment of environmental flows in the middle Verde River watershed, Arizona," by N.V. Paretti, A.M.D. Brasher, S.L. Pearlstein, D.M. Skow, B. Gungle, and B....Gungle, Bruce W.; Paretti, Nicholas V.
Regional patterns in the geochemistry of oil-field water, southern San Joaquin Valley, California, USA
Chemical and isotopic data for water co-extracted with hydrocarbons in oil and gas fields are commonly used to examine the source of the formation water and possible impacts on groundwater in areas of oil and gas development. Understanding the geochemical variability of oil-field water could help to evaluate its...McMahon, Peter B.; Kulongoski, Justin; Vengosh, Avner; Cozzarelli, Isabelle M.; Landon, Matthew K.; Kharaka, Yousif K.; Gillespie, Janice M.; Davis, Tracy
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.
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.
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.
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.
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.
GCLAS is a program designed primarily to compute daily and annual loadings of constituents transported in streamflow.
The HYDROTHERM computer program simulates multi-phase ground-water flow and associated thermal energy transport in three dimensions. It can handle high fluid pressures, up to 1 x 10^9 Pa (104 atm), and high temperatures, up to 1,200 °C.
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
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.
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.
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.
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.
USGS WAUSP Water Census: Map of Regional Groundwater Availability Studies
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
Trends in total water withdrawals by water-use category, 1950–2015
Elements of the Water Availability and Use Science Program water budget for the Nation Water Census.
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...
Data Will Help to Improve Groundwater-Flow ModelData Will Help to Improve Groundwater-Flow Model
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.
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 email@example.com
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.
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.
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.