Mission Areas L2 Landing Page Tabs
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 is evaluating the integration of small unoccupied aircraft systems – sUAS or "drones" – into USGS hydrogeophysical studies. The following projects are part of a Wtaer Resources Mission Area demonstration and evaluation effort in collaboration with USGS Water Science Centers (WSCs) starting in June 2018.
The FIM Toolbox contains a comprehensive information on the Flood Inundation Mapping program, including how to develop a flood inundation map library. This section of the FIM Toolbox provides information on obtaining approval and publishing your FIM library. The Toolbox is updated as new resources become available.
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...
The FIM Toolbox contains comprehensive information on the Flood Inundation Mapping program, including how to develop a flood inundation map library. This section of the FIM Toolbox provides information on how to prepare your FIM report. The Toolbox is updated as new resources become available.
The FIM Toolbox contains comprehensive information on the Flood Inundation Mapping program, including how to develop a flood inundation map library. Resources include process documents, scientific and technical requirements, forms and templates, outreach and educational materials, and contact information. The FIM Toolbox is updated as new resources become available.
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.
The USGS has a long history of cooperative investigations with the Federal Highway Administration (FHWA) and state highway agencies to provide data and information to address various issues related to water resources and the Nation’s transportation infrastructure. These issues cover a wide spectrum and include items such as regional flow statistics, flood documentation, regional stream...
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,...
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/...
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.
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
This dataset provides site identifiers, details, and quality indicators. The format is a table with 1 row per site (tab-delimited file). This dataset is part of a larger data release of metabolism model inputs and outputs for 356 streams and rivers across the United States (https://doi.org/10.5066/F70864KX). The complete release includes: modeled...
MODFLOW-2005 and MODPATH6 models used to simulate groundwater flow and transport and base-flow age in two tributaries to the Upper Chester River, Maryland
A steady state three-dimensional groundwater flow (MODFLOW-2005) and advective
transport (MODPATH6) model was developed to examine subsurface travel times to
wells and receiving streams in two subcatchments contributing to the Upper Chester
River, Maryland. The model was calibrated to conditions from 1990 to 2005, the period
for which groundwater levels, stream...
iTOUGH2-EOS7C model used to analyze multiphase flow and underpressured shale at the Bruce Nuclear Site, Ontario, Canada
Hydraulic testing has revealed dramatic underpressures in Paleozoic shales and carbonates at the
Bruce nuclear site in Ontario. Although evidence from both laboratory and field studies suggests that
a small amount of gas phase methane could be present in the shale, previous studies examining
causal linkages between gas phase and the underpressure have been inconclusive. To...
This product consists of one tabular dataset and associated metadata of water quality information related to rivers, streams, and reservoirs in the Upper Mississippi River watershed between 2012 and 2016. This data release is apart of a national assessment of freshwater aquatic carbon fluxes. Data consist of organic and inorganic carbon related species, carbon dioxide and methane gas fluxes...
Evaluating Decadal Changes in Groundwater Quality: Groundwater quality data were collected from 5,000 wells between 1988-2001 (first sampling event) by the U.S. Geological Survey’s National Water-Quality Assessment Project. Samples are collected in groups of 20-30 wells with similar characteristics called networks. About 1,500 of these wells in 67 networks were sampled about 10...
A MODFLOW-NWT groundwater flow model was developed to simulate groundwater
movement in the area around Anvil Lake, and groundwater inputs and outputs from
the lake from 1980 to 2014. Surface-water hydrology was simulated using the lake
package. The MODFLOW model was first calibrated for steady-state conditions, or
"average" conditions corresponding to January 1, 1980,...
The U.S. Geological Survey conducted a bathymetric survey of a reach of the Deschutes River near Bend, OR, between Benham Falls and Dillon Falls on July 25, 2016, to support research on remote sensing of river discharge and characterization of habitat for amphibians, particularly the Oregon Spotted Frog. The bathymetric survey data were obtained with an ITER Systems Bathyswath-1 468 kHz multi...
MODFLOW-NWT datasets for simulations 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 with
MODFLOW-NWT, a USGS...
Hyperspectral image data from the Deschutes River near Bend, OR, were acquired on July 26, 2016 to support research on remote sensing of rivers, particularly retrieval of water depth, and to facilitate efforts to characterize habitat for amphibians, primarily the Oregon Spotted Frog. These data were collected by the Compact Airborne Spectrographic Imager (CASI) 1500H manufactured by ITRES...
Groundwater quality data were collected in 5,000 wells between 1988-2001 by the National Water-Quality Assessment Project. About 1,500 of these wells were sampled again between 2002-2012 to evaluate decadal changes in groundwater quality. Monitoring wells, domestic supply wells, and some public supply wells were included in this study. All water was collected prior to treatment. Groundwater...
SEAWAT model used to evaluate water management issues in the Santa Barbara and Foothill groundwater basins, California
The city of Santa Barbara, in cooperation with the U.S. Geological Survey (USGS) California Water Science Center,
developed a three-dimensional density-dependent groundwater-flow and solute-transport model (the Santa Barbara
Flow and Transport Model, or SBFTM), based on an existing groundwater-flow model, to simulate seawater intrusion
into the Santa Barbara basin under...
The U.S. Geological Survey maintains a program of water-quality studies in San Francisco Bay (CA) that began in 1969. This USGS Data Release will archive and make available all measurements beginning in 2016. Each year, a data file containing the previous year’s data will be added. Water-quality constituent measurements from sensors include salinity, temperature, light attenuation...
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.
Sierra Nevada summary report. California’s Fourth Climate Change Assessment
The Sierra Nevada region is critical to the environment and economy of California. Its places and peoples provideessential natural resources including fresh water, clean power, working lands, and famous wilderness. The regionencompasses tremendous geographical, climatological, and ecological diversity that spans majestic mountains todeep desert...Dettinger, Michael; Alpert, Holly; Battles, John J.; Kusel, Jonathan; Safford, Hugh; Fougeres, Dorian; Knight, Clarke; Miller, Lauren; Sawyer, Sarah
Land subsidence in the United States is inextricably linked to the development of groundwater—one of the Nation’s most valuable natural resources. More than 80 percent of the identified subsidence in the United States is a consequence of anthropogenic impact on water resources. Three processes account for most of the water-related subsidence—the...Sneed, Michelle
Radium attenuation and mobilization in stream sediments following oil and gas wastewater disposal in western Pennsylvania
Centralized waste treatment facilities (CWTs) in Pennsylvania discharged wastewater from conventional and unconventional oil and gas (O&G) wells into surface waters until 2011, when a voluntary request from the Pennsylvania Department of Environmental Protection (PA DEP) encouraged recycling rather than...Van Sice, Katherine; Cravotta, Charles A.; McDevitt, Bonnie; Tasker, Travis L.; Landis, Joshua D.; Puhr, Johnna; Warner, Nathaniel R.
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 H.; Walvoord, Michelle Ann; Thomas, Randall B.; Green, Christopher; Baker, R.J.; Thordsen, James J.; Stonestrom, David A.; Andraski, Brian J.
The approaching obsolescence of 137Cs dating of wetland soils in North America
The peak fallout in 1963 of the radionuclide 137Cs has been used to date lake, reservoir, continental shelf, and wetland sedimentary deposits. In wetlands such dating is used to project the ability of wetlands to keep pace with sea level rise and develop strategies for mitigating carbon pollution using biological...Drexler, Judith Z.; Fuller, Christopher C.; Archfield, Stacey A.
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.
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.
Geologic, hydrologic, and water-quality data from multiple-well monitoring sites in the Bunker Hill and Yucaipa Groundwater Subbasins, San Bernardino County, California, 1974–2016
In 1974, the U.S. Geological Survey (USGS), in cooperation with the San Bernardino Valley Municipal Water District, initiated a study to assess the regional groundwater resources in the Bunker Hill Subbasin of the Upper Santa Ana Valley Groundwater Basin in San Bernardino County, California. The study area expanded east into the Yucaipa Subbasin...Mendez, Gregory O.; Anders, Robert; McPherson, Kelly R.; Danskin, Wesley R.
Systematic variation in evapotranspiration trends and drivers across the Northeastern United States
The direction and magnitude of responses of evapotranspiration (ET) to climate change are important to understand, as ET represents a major water and energy flux from terrestrial ecosystems, with consequences that feed back to the climate system. We inferred multidecadal trends in water balance in 11 river basins (1940–2012) and eight smaller...Vadeboncoeur, Matthew A; Green, Mark B.; Asbjornsen, Heidi; Campbell, John L.; Adams, Mary Beth; Boyer, Elizabeth W.; Burns, Douglas A.; Fernandez, Ivan J; Mitchell, Myron J; Shanley, James B.
Understanding the captivity effect on invertebrate communities transplanted into an experimental stream laboratory
Little is known about how design and testing methodologies affect the macroinvertebrate communities that are held captive in mesocosms. To address this knowledge gap, we conducted a 32‐d test to determine how seeded invertebrate communities changed once removed from the natural stream and introduced to the laboratory. We evaluated larvae survival...Schmidt, Travis S.; Rogers, Holly; Miller, Janet L.; Mebane, Christopher A.; Balistrieri, Laurie S.
Concentrations of nutrients at the water table beneath forage fields receiving seasonal applications of manure, Whatcom County, Washington, autumn 2011–spring 2015
The U.S. Geological Survey, in cooperation with the Whatcom Conservation District (WCD), collected groundwater-quality data for roughly 3 years (October 2011–May 2015) from near the water table beneath forage fields receiving regular seasonal applications of liquid dairy manure in Whatcom County, Washington. The work was done as part of an...Cox, Stephen E.; Spanjer, Andrew R.; Huffman, Raegan L.; Black, Robert W.; Barbash, Jack E.; Embertson, Nichole M.
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.
Artesian Well, John Pennekamp Coral Reef State Park, Key Largo, FL
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
A regional assessment of untreated groundwater in the Piedmont and Blue Ridge crystalline-rock aquifers, which includes parts of 11 states across the contiguous United States, is now available from the U.S. Geological Survey.
This story was updated on December 7, 2017.
The U.S. Geological Survey is near the midpoint of a complex undertaking to survey the quality of the nation’s largest drinking-water resource.
A regional assessment of untreated groundwater in the Cambrian-Ordovician aquifer system, which includes parts of Minnesota, Wisconsin, Michigan, Iowa, Illinois, Missouri and Indiana, is now available from the U.S. Geological Survey.
Oxygen levels, dissolved minerals among factors responsible for high concentrations of radium in untreated water from aquifer that underlies six states
TACOMA, Wash. — The U.S. Geological Survey recently published the results of a new five-year suspended-sediment and water temperature study from the Sauk River. The purpose of this study is to improve understanding of the magnitude and timing of suspended sediment from the Sauk River and its tributaries to the Skagit River.
A new assessment of channel bed erosion near 13 highway bridges in the greater St. Louis, Missouri, area is now available in an online report from the U.S. Geological Survey, produced in cooperation with the Missouri Department of Transportation.
Levels of Possible Human Carcinogen Declining in Most Wells in Tucson International Airport Superfund Site
Levels of a potential human carcinogen, 1,4-dioxane, have mostly declined in wells in the commercial and residential areas of the Tucson International Airport Area Superfund Site during 2002-2017, according to a new map published by the U.S. Geological Survey.
MODFLOW 6, the newest version of the world’s most widely used groundwater modeling software, is now available for download from the U.S. Geological Survey