Mission Areas

Water Resources

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
Filter Total Items: 186
Date published: September 21, 2017
Status: Active

Water Archive Library - Idaho National Laboratory

Since 1966, we have archived over 6000 samples of about 500 mL each of "raw" (unfiltered and unpreserved) water from groundwater and surface-water quality sites collected during our monitoring activities. Through the years, we've kept the water samples in a secure room and tracked which samples researchers have requested and analyzed for various projects.

Contact us for more information...

Date published: September 21, 2017
Status: Active

Core Storage Library - Idaho National Laboratory

Our Core Storage Library currently houses about 73,000 feet of core and several suites of cuttings from boreholes drilled at the INL. More cores and cuttings are added every year. The CSL also houses two suites of core and cuttings from the western Snake River Plain. In 2015, we added new core storage space in building CF 674. We recently...

Contacts: Mary K V Hodges
Date published: September 20, 2017
Status: Completed

Geophyical Logging and Water-Quality Assessment for Project Hot Spot

Relatively little is known about the Yellowstone-Snake River "hotspot" system. To increase our knowledge, the U.S. Department of Energy’s Geothermal Technologies Program provided over $4.5 million of this $6.7 million project using American Recovery and Reinvestment Act funds.

Contacts: Brian V Twining
Date published: September 20, 2017
Status: Completed

Hydrologic Investigations near the Remote Handled Low-Level Waste Facility

The U.S. Department of Energy has proposed a location for a new facility to store waste at the INL. In the unlikely event that waste leaks from the facility, it will be important to monitor whether the contamination reaches the aquifer and baseline information is need before the facility is built.

Because we need to know how water and contaminants may travel through the aquifer, we need...

Date published: September 20, 2017
Status: Completed

Naval Reactors Facility Groundwater-Quality Monitoring

As part of the Comprehensive Environmental Response Compensation and Liability Act, it is important to evaluate the effect of Naval Reactors Facility (NRF) activities on the water quality of the eastern Snake River Plain aquifer.

Contacts: Gordon Rattray
Date published: September 19, 2017
Status: Active

Wood River Valley Groundwater-Flow Model

Rapid population growth in the Wood River Valley since the 1970s has caused concern about the long-term sustainability of the groundwater resource. Water-resource planners and managers, as well as other decision makers, need a tool for water rights administration and water-resource management and planning.

Date published: September 11, 2017

Microplastics in Urban Streams of the Northeast Region

Microplastics in the environment are of increasing concern among resource managers and ecologists. With global production of plastic topping 300 million metric tons in 2015, research in fresh and marine waters throughout the world has implicated urban runoff, wastewater treatment effluent, and litter breakdown as major sources of microbeads and synthetic pieces and fibers that are slow to...

Contacts: Shawn C Fisher
Date published: August 30, 2017
Status: Active

Upper Klamath Basin Groundwater Studies

Since the late 1990s the USGS has worked to characterize the regional groundwater hydrology of the upper Klamath Basin. Research focuses on collecting data to help evaluate the state of the groundwater system and its response to external stresses, and to develop computer models to provide insights useful for water management. These efforts build on earlier USGS studies in the basin going back...

Date published: August 30, 2017

Reconstructing Flow History From Riparian Tree Rings

Aquatic Systems Branch scientists analyze rings of riparian trees relating tree growth and establishment to historical flow. We then use the tree rings to reconstruct the flow in past centuries. Flow reconstructions discover the frequency and magnitude of past droughts and floods—information that is essential for management of rivers and water supplies. We also use downscaled climate...

Date published: August 29, 2017
Status: Active

Upper Klamath Basin Studies

In 1992, the USGS began studying possible causes for the change in trophic status of Upper Klamath Lake. Since then research has expanded to include groundwater, geomorphology, streamflow forecasting, and fish ecology.

Date published: August 18, 2017
Status: Active

Monitoring Mercury in Fish Tissue, Boise and Snake Rivers and Brownlee Reservoir

To meet National Pollution Discharge Elimination System (NPDES) permitting requirements, the City of Boise will be responsible for collecting fish tissue samples for mercury analysis upstream of and downstream of their wastewater treatment facilities discharging to the lower Boise and Snake Rivers.

Mercury is a naturally occurring element that ultimately makes its way into aquatic...

Contacts: Dorene MacCoy
Date published: August 10, 2017
Status: Active

Groundwater-Flow Model for the Treasure Valley and Surrounding Area

in partnership with the Idaho Department of Water Resources (IDWR) and Idaho Water Resource Board (IWRB), we will construct a numerical groundwater-flow model of the Treasure Valley and surrounding area. Resource managers will use the model to simulate potential anthropogenic and climatic effects on groundwater for water-supply planning and management. As part of model construction, the...

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: 75
Date published: April 14, 2016

Groundwater Watch

Groundwater Watch displays maps, graphs, and tables describing real-time, recent, and historical groundwater data from wells and springs across the United States. Groundwater Watch groups related wells and data from active well networks and provides basic statistics about the water-level data collected by the USGS and from data supplied to us from partners through cooperative agreements.

Date published: April 13, 2016

WaterQualityWatch

WaterQualityWatch provides access to real-time water-quality data collected at more than 2,000 stream sites throughout the United States, including streamflow, water temperature, specific conductance, pH, dissolved oxygen, turbidity, and nitrate.

Date published: April 12, 2016

Water Quality Portal

The Water Quality Portal integrates and provides access to publicly available water-quality data from databases such as USGS NWIS and BioData, EPA STORET, and USDA-ARS STEWARDS through a single search interface.

Date published: April 11, 2016

National Ground-Water Monitoring Network (NGWMN) Data Portal

The NGWMN Data Portal provides access to groundwater data from multiple, dispersed databases in a web-based mapping application. The Portal contains current and historical data including water levels, water quality, lithology, and well construction.

Date published: April 10, 2016

National Environmental Methods Index (NEMI)

NEMI is a searchable database of environmental methods, protocols, statistical and analytical methods, and procedures that allows scientists and managers to find and compare methods for all stages of the monitoring process.

Date published: April 8, 2016

Red–Assiniboine River Basin (RARB) SPARROW Mapper, 2002

This mapper displays SPARROW nutrient load and yield data and the importance of various nutrient sources for the RARB, given nutrient inputs similar to 2002. Rankings can be shown by country, state/province, HUC4, HUC8, and catchment. Nutrient data can be explored using maps and interactive graphs and tables. Modeling results can be exported as an Excel spreadsheet or a geospatial dataset.

Date published: April 7, 2016

Great Lakes, Ohio, Upper Mississippi, Red River Basins (MRB3) SPARROW Mapper, 2002

This mapper displays SPARROW nutrient load and yield data and the importance of various nutrient sources for the MRB3, given nutrient inputs similar to 2002. Rankings can be shown by major watershed, state, HUC8, tributary, and catchment. Nutrient data can be explored using maps and interactive graphs and tables. Modeling results can be exported as an Excel spreadsheet or a geospatial dataset...

Date published: April 6, 2016

Great Lakes SPARROW Mapper, 2002

This mapper displays SPARROW nutrient load and yield data specifically for U.S. tributaries to the Great Lakes. The results are based on the SPARROW models developed for the Great Lakes, Ohio, Upper Mississippi, Red River Basins (MRB3). Modeling results can be exported as an Excel spreadsheet or a geospatial dataset.

Date published: April 5, 2016

Mississippi/Atchafalaya River Basin (MARB) SPARROW Mapper, 2002

The mapper displays SPARROW nutrient load and yield data and the importance of various nutrient sources for the MARB, given nutrient inputs similar to 2002. Rankings can be shown by major watershed, state, HUC8, tributary, and catchment. Nutrient data can be explored using maps and interactive graphs and tables. Modeling results can be exported as an Excel spreadsheet or a geospatial dataset...

Date published: April 4, 2016

Yellowstone River SPARROW Mapper, 2002

This mapper displays SPARROW nutrient load and yield data specifically for the Yellowstone River. The results are based on the SPARROW models developed for the Mississippi/Atchafalaya River Basin (MARB). Modeling results can be exported as an Excel spreadsheet or a geospatial dataset.

Date published: April 3, 2016

SPARROW Decision Support System (discontinued)

The SPARROW Decision Support System displays model predictions of water-quality conditions and sources by stream reach and catchment, tracks the transport to downstream receiving waters, and can be used to evaluate management source-reduction scenarios. Models currently available include national nitrogen, phosphorus, and suspended sediment models...

Date published: January 25, 2016

Stream Suspended Sediment Loads in Western Oregon and Northwest California (2012)

This ASCII file contains mean annual suspended-sediment loads predicted for western Oregon and northwestern California and the relative contribution to those loads from different types of upstream lithology. These suspended-sediment predictions can be joined to the NHDPlus v.2 hydrography (COMID), allowing users to perform additional analysis and create their own map products.

Filter Total Items: 15,164
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

Flow-mediated effects on travel time, routing, and survival of juvenile Chinook salmon in a spatially complex, tidally forced river delta

We evaluated the interacting influences of river flows and tides on travel time, routing, and survival of juvenile late-fall Chinook salmon (Oncorhynchus tshawytscha) migrating through the Sacramento–San Joaquin River Delta. To quantify these effects, we jointly modeled the travel time, survival, and migration routing in relation to individual...

Perry, Russell W.; Pope, Adam C.; Romine, Jason G.; Brandes, Patricia L.; Burau, Jon R.; Blake, Aaron R.; Ammann, Arnold J.; Michel, Cyril J.
Perry, R.W., A.C. Pope, J.G. Romine, P.L. Brandes, J.R. Burau, A.R. Blake, A.J. Ammann, and C.J. Michel. Flow-mediated effects on travel time, routing, and survival of juvenile Chinook salmon in a spatially complex, tidally forced river delta. Can. J. Fish. Aquat. Sci. (Online First).

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, Le 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.

Year Published: 2018

Factors influencing fine sediment on stream beds in the Midwestern United States

Fine sediment (particles <2 mm in diameter) in stream beds has wide-ranging effects on hydraulics, geomorphology, and ecology and is a primary focus for stream quality management in many regions. We identify reach- and basin-scale factors associated with fine sediment in the beds of 83 stream reaches in the Midwestern United States using...

Konrad, Christopher P.; Gellis, Allen
Konrad, C.P. and A. Gellis, 2018. Factors influencing fine sediment on stream beds in the Midwestern United States, Journal of Environmental Quality 47: 1214-1222.

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: 1,239
A hydrographer kneels in water to measure a high water mark on a wall.
September 18, 2018

Measuring a high water mark as flooding recedes

USGS hydrographer Kyle Marchman measures a high water mark on the rear wall of a Kangaroo gas station on Highway 24 north of Fayetteville, NC on Sept. 18, 2018, after flooding caused by Hurricane Florence.

USGS intern James Stonecypher measures Lumber River floodwaters
September 17, 2018

Measuring the Lumber River floodwaters

James Stonecypher measures flood waters from the Lumber River that breached a dam in Lumberton, North Carolina after the passage of Hurricane Florence, Sept. 17, 2018. 

Map of USGS streamgages at or over flood stage in NC Sept. 19, 2018
September 16, 2018

As Florence rains, rivers keep rising, submerging some USGS instrument

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.

USGS scientist takes measurement in a flooded NC creek
September 16, 2018

Working to keep vital flood information flowing in the Carolinas

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. 

 

Image shows a USGS storm tide sensor attached to a pier
September 10, 2018

USGS Storm-Tide Sensor for Hurricane Florence

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 coral worn smooth with a badly eroded base
August 28, 2018

Erosion has taken a toll on this Keys coral

A reef with little living coral and extensive bioerosion in the Florida Keys. Photo: Ilsa Kuffner, USGS.

Before and after views of a water fall.  First shows light flow of water over the falls, the second shows heavy flow.
August 23, 2018

Impact of Hurricane Lane on Wailuku River

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

...
Two divers use a tripod and drill to take a coral core
August 21, 2018

USGS scientists drill a coral core in the Florida Keys

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.

August 17, 2018

Overview of Indirect Measurements - Survey Requirements

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. 
 

USGS Contract Scientist Taking Water Sample
August 16, 2018

USGS Contract Scientist Taking Water Sample

Todd Preston, USGS contract scientist, collecting a surface-water sample from a Prairie Pothole wetland.

Attribution: Water Resources
Photo of scientists operating small drone in the field
August 9, 2018

Using drones to study groundwater

Did you know that plants can help us understand what is happening underground? Studying plants in an area can sometimes provide information about soil conditions, water availability, and water quality. In this photo, USGS Oregon Water Science Center hydrologists Brandon Overstreet and Gabe Gordon are using a small

...
Attribution: Water Resources
Filter Total Items: 376
Date published: June 16, 2017

USGS: High Plains Aquifer Groundwater Levels Continue to Decline

The U.S. Geological Survey has released a new report detailing changes of groundwater levels in the High Plains aquifer. The report presents water-level change data in the aquifer for two separate periods: from 1950 – the time prior to significant groundwater irrigation development – to 2015, and from 2013 to 2015.

Date published: June 6, 2017

Red Dye Study Will Examine Water Flow through Auxiliary Lock 14 near the Quad Cities

U.S. Geological Survey scientists will inject a harmless, bright red fluorescent dye into the auxiliary lock at Locks and Dam 14 on the Mississippi River near Pleasant Valley, Iowa, Tuesday, June 13, 2017, weather permitting. If needed, a backup date is scheduled for June 27, 2017.  

Date published: June 5, 2017

New USGS Science Plan Designed to Help Plan for Drought Effects on People, Communities, and Ecosystems

The U. S. Geological Survey is poised to bring a dynamic array of science and tools to help decision-makers manage and offset effects of increased drought across the United States, according to a drought plan report released today.

Date published: June 1, 2017

As Hurricane Season Opens, USGS Is Ready

Scientists work in the field before, during and after landfall to improve forecasting and recovery.

 

 

Date published: May 31, 2017

Unconventional Oil and Gas Production Not Currently Affecting Drinking Water Quality

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

Date published: May 28, 2017

Western Lake Erie Tributary-Water Monitoring Summary

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.  

Date published: May 11, 2017

New Real-Time Streamgage, Reservoir, and Precipitation Sites

The United States Geological Survey (USGS) operates a network of real-time streamgages that continually record stage and streamflow every 15 to 60 minutes. 

Date published: May 11, 2017

High Levels of Radon Found in Some Wells Across Pennsylvania

A new U.S. Geological Survey study has discovered high levels of radon in wells across certain areas of Pennsylvania.

Date published: May 11, 2017

The Vital Nature of Streamgaging

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.

Date published: May 10, 2017

The Complex Dynamics of Geyser Eruptions

Despite two centuries of scientific study, basic questions persist about geysers—why do they exist? What determines their behavior?

Filter Total Items: 1,822