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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
USGS total dissolved gas (TDG) data help guide spill and discharge management from dams operated along tributaries of the Willamette River.
Sediment fingerprinting has been used successfully to identify land uses that are the major sources of sediment. This study will apply these techniques in a predominantly rural, volcanic landscape.
"SELDM facilitates analysis by providing precipitation, pre-storm streamflow, and other variables by region or from hydrologically similar sites."
Macroinvertebrate Communities Evaluated Before and After a Channel Restoration Project in Silver Creek, Blaine County
The U.S. Geological Survey, in cooperation with Blaine County and The Nature Conservancy, evaluated the status of macroinvertebrate1 communities prior to and following a channel restoration project in Silver Creek, Blaine County, Idaho. The objective of the evaluation was to determine whether 2014 remediation efforts to restore natural channel conditions in an impounded area of Silver Creek...
The U.S. Geological Survey, in cooperation with Gem County and the Idaho Department of Environmental Quality, is assessing the quality of groundwater from freshwater aquifers used for drinking-water supplies.
The U.S. Geological Survey (USGS) has been monitoring water quality in the Willamette River for many years. The USGS National Water-Quality Assessment Program (NAWQA) collects water samples from the Willamette River at Portland, as well as from select sites upstream, as part of a continuing effort to assess the quality of the Nation's waters. The USGS Oregon Water Science Center has multiple...
Modeling summer month hydrological drought probabilities in the United States using antecedent flow conditions
Climate change raises concern that risks of hydrological drought may be increasing. We estimate hydrological drought probabilities for rivers and streams in the United States (U.S.) using maximum likelihood logistic regression (MLLR). Streamflow data from winter months are used to estimate the chance of hydrological drought during summer months. Daily streamflow data collected from 9,144...
Widespread occurrence and potential for biodegradation of bioactive contaminants in Congaree National Park, South Carolina
Organic contaminants with designed molecular bioactivity, such as pesticides and pharmaceuticals, originate from human and agricultural sources, occur frequently in surface waters, and threaten the structure and function of aquatic and terrestrial ecosystems. Congaree National Park in South Carolina (USA) is a vulnerable park unit due to its location downstream of multiple urban and...
The U.S. Geological Survey (USGS), in cooperation with the Virginia Department of Environmental Quality (DEQ), is monitoring the water quality of multiple high-priority streams where natural gas pipeline crossings have been proposed. The purpose of the monitoring effort is to collect baseline water-quality data and, if the pipeline construction is approved, to monitor water quality in these...
This study is in a pilot phase during fiscal years 2017 and 2018. The purpose of the pilot phase is to identify possible technical challenges of using the USGS code GSFLOW for simulating groundwater and surface-water flow in the Colorado Plateau principal aquifer system. During the pilot phase, the project will evaluate GSFLOW in the San Juan River Basin (...
Numerical models are being used to better understand the flow of groundwater and the transport of radiochemical and chemical constituents in the eastern Snake River Plain aquifer system.
The models, developed at the INL, afford scientists a framework to organize their knowledge and concepts of groundwater systems and to provide insights for water-resource managers for future water...
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 locations as shapefile points. The format is a shapefile for all sites combined (.shp, .shx, .dbf, and .prj files). 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:...
Monthly Time Series of Precipitation, Air Temperature, and Net Radiation for 2,673 Gaged River Basins Worldwide
This is the first of two datasets containing derived data necessary to reproduce the results of the associated journal article: "On the Sensitivity of Annual Streamflow to Air Temperature." This first dataset contains basic basin characteristics of 2,673 gaged basins worldwide, along with associated monthly time series of basin-mean precipitation, air temperature, and net radiation. The...
MODFLOW-2005 used to evaluate the effects of withdrawals from two aquifers in the New Jersey Coastal Plain for Cumberland County and vicinity, New Jersey
A local and a regional groundwater-flow model were used to evaluate the effects of
withdrawals in Cumberland County and vicinity in New Jersey. The local model
simulated monthly groundwater withdrawals from the unconfined Kirkwood-Cohansey
aquifer system and surface-water diversions from 1997 to 2008. The regional model,
the New Jersey Coastal Plain RASA model,...
Two identical Radar Stage Sensors from Forest Technology Systems, were evaluated to determine if they are suitable for U.S. Geological Survey (USGS) hydrologic data collection. The sensors were evaluated in laboratory conditions to evaluate the distance accuracy of the sensor over the manufacturer’s specified operating temperatures and distance to water ranges. Laboratory results...
MODFLOW-2005 model archive for simulation of zones of groundwater contribution to wells south of the Naval Weapons Industrial Reserve Plant in Bethpage, New York
A groundwater-flow model was used to simulate zones of contribution to wells
south of Naval Weapons Industrial Reserve Plant, Bethpage, New York. The
model results will be used to demonstrate how the size and shape of zones
of contribution may vary.
Annual estimates of road salt application were developed for the conterminous United States for the calendar years 1992 through 2015. The final dataset consists of 24 rasters in Geostationary Earth Orbit Tagged Image File Format (GeoTIFF), one for each year from 1992 through 2015. The final estimates (in pounds) were derived from several data sources, which include road density and proportion...
This dataset provides complete fits from metabolism estimation models. The format is 5 files per model (text and tab-delimited files, packaged as 1 zip file per model): (1) estimates of daily gross primary productivity (GPP), ecosystem respiration (ER), and the gas exchange coefficient (K600), (2) parameters for the model overall, (3) estimates of the nodes defining the piecewise line relating...
MODFLOW-NWT model used to assess groundwater availability in the uppermost principal aquifer systems of the Williston structural basin, United States and Canada
A three-dimensional groundwater flow model was developed to characterize groundwater resources
the uppermost principal aquifers in the Williston structural basin in parts of Montana, North Dakota, and
South Dakota in the United States and of Manitoba and Saskatchewan in Canada as part of a detailed
assessment of the groundwater availability of the area. The uppermost...
Hyperspectral image data from the Snake River in Grand Teton National Park, WY, were acquired on August 23, 2015 to support research on remote sensing of rivers, particularly retrieval of water depth, and to facilitate efforts to augment an image time series for characterizing channel change along the Snake River. These data were collected by the Compact Airborne Spectrographic Imager (CASI)...
Summary of the 11,000 published soil BD, LOI, SOC%, Hg, and RHgC measurements from 13 studies (1978-2014)
The "published" dataset includes 11,000 published measurements of sediment total mercury (STHg, nanograms per gram of soil, dry), bulk density (BD, grams per cm3 of soil, dry), percent of soil organic matter (%OM, loss on ignition, LOI), percent of soil organic carbon (%SOC, calculated using the Redfield's number), RHgC (Hg to carbon ratio), and age (YBP) from 13 published studies conducted...
Data and citations describing the connections between agriculture and water quality in the United States
This U.S. Geological Survey data release provides the data and citations for selected tables and figures in “Agriculture-A river runs through it-The connections between agriculture and water quality”. This Circular is based on the National Water-Quality Assessment Project’s study of Agricultural Chemicals: Sources, Behavior, and Transport. This study focused on...
MODFLOW-NWT model of predictive simulations of groundwater response to selected scenarios in the Williston Basin, United States and Canada
A three-dimensional groundwater flow model was developed to characterize groundwater
resources of the uppermost principal aquifers in the Williston structural basin in parts of
Montana, North Dakota, and South Dakota in the United States and of Manitoba and
Saskatchewan in Canada as part of a detailed assessment of the groundwater availability
of the area. The uppermost...
Geochemical conditions and nitrogen transport in nearshore groundwater and the subterranean estuary at a Cape Cod embayment, East Falmouth, Massachusetts, 2013–14
Nitrogen transport and transformation were studied during 2013 to 2014 by the U.S. Geological Survey, in cooperation with the U.S. Environmental Protection Agency, in a subterranean estuary beneath onshore locations on the Seacoast Shores peninsula, a residential area in Falmouth, Massachusetts, served by septic systems and cesspools, and adjacent...Colman, John A.; LeBlanc, Denis R.; Böhlke, John K.; McCobb, Timothy D.; Kroeger, Kevin D.; Belaval, Marcel; Cambareri, Thomas C.; Pirolli, Gillian F.; Brooks, T. Wallace; Garren, Mary E.; Stover, Tobias B.; Keeley, Ann
New insights into surface-water/groundwater exchanges in the Guadalupe River, Texas, from floating geophysical methods
In south-central Texas, the amount of streamflow in the Guadalupe River is a primary concern for local and downstream communities because of municipal, agricultural, wildlife, and recreational uses. Understanding the flow paths and rates of exchange between the surface water in the river and the groundwater in the underlying Carrizo-Wilcox aquifer...Ikard, Scott J.; Banta, J. Ryan; Stanton, Gregory P.
Wastewater indicators, hormones, sterols, antibiotics, and pharmaceuticals in soil at an agricultural field irrigated with domestic septage, central Minnesota, September 2014
Treated domestic septage can be used to irrigate agricultural fields as a disposal method or as a means to reuse water. Because traditional on-site treatment systems are not designed to remove wastewater indicators, hormones, sterols, antibiotics, and pharmaceuticals, land application of septage potentially results in soil contamination. Soils...Elliott, Sarah M.; Erickson, Melinda L.; Krall, Aliesha L.; Adams, Byron A.
Hydrologic conditions in Kansas, water year 2017
The U.S. Geological Survey, in cooperation with Federal, State, and local agencies, maintains a long-term network of hydrologic monitoring stations in Kansas. These data and associated analyses provide a unique overview of the hydrologic conditions and help improve the understanding of Kansas’ water resources. Yearly assessments of hydrologic...Lukasz, Bradley S.
Weathering of oil in a surficial aquifer
The composition of crude oil in a surficial aquifer was determined in two locations at the Bemidji, MN, spill site. The abundances of 71 individual hydrocarbons varied within 16 locations sampled. Little depletion of these hydrocarbons (relative to the pipeline oil) occurred in the first 10 years after the spill, whereas losses of 25% to 85% of...Baedecker, Mary Jo; Eganhouse, Robert P.; Qi, Haiping; Cozzarelli, Isabelle M.; Trost, Jared J.; Bekins, Barbara A.
A direct-push freezing core barrel for sampling unconsolidated subsurface sediments and adjacent pore fluids
Contaminants passing through the unsaturated zone can undergo changes in narrow reaction zones upon reaching saturated sediments. Understanding these reactions requires sampling of sediment together with adjacent water and microbes in a manner that preserves in situ redox conditions. Use of a basket-type core catcher for saturated, noncohesive...Trost, Jared J.; Christy, Thomas M.; Bekins, Barbara A.
Continuing progress toward a national assessment of water availability and use
Executive SummaryThe Omnibus Public Land Management Act of 2009 (Public Law 111—11) was passed into law on March 30, 2009. Subtitle F, also known as the SECURE Water Act, calls for the establishment of a “national water availability and use assessment program” within the U.S. Geological Survey (USGS). The USGS issued the first report on the...Evenson, Eric J.; Jones, Sonya A.; Barber, Nancy L.; Barlow, Paul M.; Blodgett, David L.; Bruce, Breton W.; Douglas-Mankin, Kyle; Farmer, William H.; Fischer, Jeffrey M.; Hughes, William B.; Kennen, Jonathan G.; Kiang, Julie E.; Maupin, Molly A.; Reeves, Howard W.; Senay, Gabriel B.; Stanton, Jennifer S.; Wagner, Chad R.; Wilson, Jennifer T.
Streamflow contributions from tribal lands to major river basins of the United States
While many studies on tribal water resources of individual tribal lands in the United States (US) have been conducted, the importance of tribal water resources at a national scale has largely gone unrecognized because their combined totals have not been quantified. Thus, we sought to provide a numerical estimate of major water budget components on...Blasch, Kyle; Hundt, Stephen; Wurster, Patrick; Sando, Thomas R.; Berthelote, Antony
Changes in Earth’s gravity reveal changes in groundwater storage
Changes in the amount of water stored in underground aquifers cause small changes in Earth’s gravitational field. The U.S. Geological Survey’s Southwest Gravity Program has developed methods for measuring terrestrial gravity changes with part-per-billion precision. The measurements allow scientists to map changes in groundwater storage and to...Kennedy, Jeffrey R.
Selected trace-elements in alluvium and rocks, western Mojave Desert, southern California
Concentrations of twenty-seven elements, including naturally-occurring water-quality contaminants arsenic, chromium, and uranium, were measured in 217 samples of alluvium and rock from the western Mojave Desert, southern California, using portable (pXRF) and laboratory (LXRF) X-ray fluorescence. Comparison of measurements with NIST-traceable...Groover, Krishangi D.; Izbicki, John A.
Methods used to reconstruct historical daily streamflows in northern New Jersey and southeastern New York, water years 1922–2010
A study was conducted by the U.S. Geological Survey, in cooperation with the New Jersey Department of Environmental Protection, to reconstruct streamflows for use in the RiverWare model. Methods and data used to estimate daily reconstructed streamflows at 53 sites in selected subbasins in northern New Jersey and southeastern New York are presented...Hickman, R. Edward; McHugh, Amy R.
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 the gas phase and the...Plampin, Michael R.; Neuzil, Christopher E.
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.
A WaterWatch web map shows streamgages in North and South Carolina that approached or exceeded major flood stage EST on September 19, 2018, as the former Hurricane Florence, now downgraded to a tropical depression, deluged the states with rain.
David Stillwell, USGS hydrologic technician, performs a discharge measurement to help document and forecast flooding caused by Hurricane Florence at Long Creek in Rhyne, North Carolina on Sept. 16.
A USGS storm-tide sensor, deployed in advance of Hurricane Florence's landfall. The sensors are housed in vented steel pipes a few inches wide and about a foot long. They are being installed on bridges, piers, and other structures that have a good chance of surviving the storm.
The information the sensors collect will help define the depth and duration of a storm...
A reef with little living coral and extensive bioerosion in the Florida Keys. Photo: Ilsa Kuffner, USGS.
Two views from the Rainbow Falls overlook, downstream of the Wailuku River streamgage near Hilo, Hawaii. The image on the left shows a typical base flow of about 35 cubic feet per second (cfs). The image on the right shows the early impact of Hurricane Lane with a flow of about 26,000 cfs taken at 8:35 a.m. HST, August 23, 2018. This U.S. Geological Survey streamgage has...
Research Oceanographer Lauren Toth and student volunteer Liz Whitcher drill a coral-reef core from a reef off Key West, Florida. Photo: Anastasios Stathakopoulos, USGS.
This video provides an overview of the different indirect measurement methods used by the USGS, as well as a brief description of what you'll need to survey for each.
Comparing 2009 vs 2014 Bank surface after erosion, Grand Canyon AZ.
Sediment Deposit in the Grand Canyon, AZ
Decades or longer may be needed to fully assess the effects of unconventional oil and gas production on the quality of groundwater used for drinking water in Arkansas, Louisiana, and Texas
The U.S. Geological Survey in cooperation with Ohio Department of Natural Resources, Ohio Environmental Protection Agency, and the Great Lakes Restoration Initiative is measuring streamflow and collecting nutrient and sediment samples at stream gages in the Western Lake Erie Basin in Northwest Ohio.
The United States Geological Survey (USGS) operates a network of real-time streamgages that continually record stage and streamflow every 15 to 60 minutes.
A new U.S. Geological Survey study has discovered high levels of radon in wells across certain areas of Pennsylvania.
Gary Moore spent the last three days of 2015 stacking hefty bags of sand in front of a fellow church member’s brick home. With only 1,000 feet between the house and the swelling Mississippi and Meramec Rivers, Moore and other volunteers worked quickly, in frigid temperatures, to assemble a 10-foot high, 1,000-foot-long sandbag wall to ward off floodwaters.
New Report Shows Some Private Wells in Connecticut Test High for Naturally Occurring Arsenic, Uranium
A report published today by the U.S. Geological Survey, in cooperation with the Connecticut Department of Public Health, reveals that water from some private wells across the state has registered high levels of Arsenic and Uranium.
Reporters: Do you want to interview USGS scientists as they measure flooding? Please contact Jennifer LaVista.
Starting on May 2 and lasting for about two days, a helicopter towing a large, cylindrical sensor will make low-level flights over parts of Cedar Rapids as part of a groundwater survey.
2017 Snowmelt Runoff Signals Good News for Walker Lake but Raises Flooding Concerns Along Walker River
USGS model simulations suggest that Walker Lake will rise by as much as 15 to 18 feet this year, the most in a single year in recorded history.
While freshwater ecosystems cover only a small amount of the land surface in Alaska, they transport and emit a significant amount of carbon, according to new U.S. Geological Survey research. An invited feature article for Ecological Applications provides the first-ever major aquatic carbon flux assessment for the entire state. Carbon flux refers to the rate of carbon transfer between pools.