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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.

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Filter Total Items: 223
Date published: September 22, 2017
Status: Active

Video Logging - Idaho National Laboratory

Drillers use the vertical and horizontal views captured by our downhole video camera to examine borehole integrity before placing water well casing, well screens, and submersible pumps. Hydrologists and geologists use the images to verify geophysical data such as: changes in rock type, small-scale geologic structures, rock fractures, and groundwater movement.

Contacts: Brian V Twining
Date published: September 22, 2017
Status: Active

Geophysical Logging - Idaho National Laboratory

Our scientists collect geophysical data from wells to understand the character of rocks and fluids below the surface. Geophysical data for a well are recorded, interpreted, and then disseminated as a geophysical log. Engineers and well drillers use geophysical logs to make well construction decisions such as design for well casing, well screen, and pump placement. Hydrologists, geologists and...

Contacts: Brian V Twining
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.

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.

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Filter Total Items: 372
Date published: January 1, 2018

Data Release for Metamodeling and Mapping of Nitrate Flux in the Unsaturated Zone and Groundwater, Wisconsin, USA

Widespread nitrate contamination of groundwater in agricultural areas poses a major challenge to sustainable water resources. Efficient analysis of nitrate fluxes across large regions also remains difficult. This study introduces a method of characterizing nitrate transport processes continuously across regional unsaturated zones and groundwater based on surrogate, machine-learning metamodels...

Attribution: Water Resources
Date published: January 1, 2018

Water quality, quantity, and gas fluxes of the Upper Mississippi River basin (WY 2012-2016)

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...

Attribution: Water Resources
Date published: January 1, 2018

SEAWAT Data Sets for Simulation of Effluent Transport in the Floridan Aquifer System at the North District Wastewater Treatment Plant, Southeastern Florida, 1997-2011: U.S. Geological Survey Data Release

A modified version of SEAWAT was used in a study by the USGS and the Miami-Dade Water
and Sewer Department to simulate effluent injection into the Boulder Zone and groundwater flow
and effluent transport in the Floridan aquifer system. The Miami-Dade Water and Sewer
Department injects nonhazardous, secondarily treated, domestic wastewater (effluent) into
the Boulder...

Attribution: Water Resources
Date published: January 1, 2018

Metabolism estimates for 356 U.S. rivers (2007-2017): 4. Model inputs

This dataset provides input data formatted for use in estimating metabolism. The format is tables of prepared time series inputs (1 tab-delimited file per site, in 1 zip file per site). 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/...

Attribution: Water Resources
Date published: January 1, 2018

MODFLOW-NWT model of groundwater flow in the Ozark Plateaus aquifer system

Groundwater in the Ozark Plateaus aquifer system is an important source for municipal,
industrial, agricultural, and domestic water supply needs across much of southern
Missouri and northern Arkansas, and smaller areas of southeastern Kansas and
northeastern Oklahoma. Recent short-term drought conditions have emphasized
the need to better understand the delicate balance...

Attribution: Water Resources
Date published: January 1, 2018

Changes in anthropogenic influences on streams and rivers in the conterminous U.S. over the last 40 years, derived for 16 data themes

This product consists of time-series calculations of anthropogenic characteristics derived for 16 data themes for multiple scales covering the conterminous United States. The characteristics are those which (a) have consistent data sources, and (b) have the potential to affect the water quality of streams and rivers. All 16 data themes are provided for Hydrologic Unit Code level-10 (HUC-10...

Attribution: Water Resources
Date published: January 1, 2018

MODFLOW-NWT model scenarios used to evaluate potential effects of proposed drainage modifications on groundwater discharge in the vicinity of Long Lake, Indiana Dunes National Lakeshore, near Gary, Indiana

A previously developed three-dimensional groundwater-flow model that used the MODFLOW-NWT code
was updated to simulate the effects of various proposed drainage modifications aimed at reducing
discharge to a sanitary sewer system near Long Lake in Indiana Dunes National Lakeshore, near Gary,
Indiana. The original steady-state model documented in the USGS report (...

Attribution: Water Resources
Date published: January 1, 2018

FTS RSS Temperature Test 2, John C. Stennis Space Center, Jun 2016

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...

Attribution: Water Resources
Date published: January 1, 2018

Disentangling the effects of low pH and metal mixture toxicity on macroinvertebrate diversity: data sets

This dataset is comprised of water quality data and benthic macroinvertebrate data collected from basins in Colorado, USA, and Finland. The data includes ancillary water quality characteristics but also a suite of trace metals observed at each site. Also included are modeled outputs that characterize the bioavailability of each trace metal to a biotic ligand. These data were used to explore...

Attribution: Water Resources
Date published: January 1, 2018

USGS Measurements of Water Quality in San Francisco Bay (CA), beginning in 2016

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...

Attribution: Water Resources
Date published: January 1, 2018

Metabolism estimates for 356 U.S. rivers (2007-2017): 8. Metabolism estimates and predictors

This dataset provides daily metabolism estimates and potential predictor variables to support further exploration. The format is a table with 1 row per site-date combination (1 tab-delimited file, compressed into a zip 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 (...

Attribution: Water Resources
Date published: January 1, 2018

National-Scale Grid to Support Regional Groundwater Availability Studies and a National Hydrogeologic Database

The National Hydrogeologic Grid (NHG) dataset includes a raster and vector representation of 1-km cells defining a uniform grid that encompasses the continental United States. The value of each cell of the raster dataset corresponds to the 1-km cell number defined as 'cellnum' in the attributes of the vector data. The NHG consists of 4,000 rows and 4,980 columns, numbered from the top left...

Attribution: Water Resources
Filter Total Items: 15,339
Year Published: 2018

Performance assessments of a novel well design for reducing exposure to bedrock‐derived arsenic

Arsenic in groundwater is a serious problem in New England, particularly for domestic well owners drawing water from bedrock aquifers. The overlying glacial aquifer generally has waters with low arsenic concentrations but is less used because of frequent loss of well water during dry periods and the vulnerability to surface‐sourced bacterial...

Winston, Richard B.; Ayotte, Joseph D.
Attribution: Water Resources

Year Published: 2018

Effects of watershed and in-stream liming on macroinvertebrate communities in acidified tributaries to Honnedaga Lake, NY

Liming techniques are being explored in many regions as a means to accelerate the recovery of aquatic biota from decades of acid deposition. The preservation or restoration of native sportfish populations has usually been the impetus for liming programs, and as such, less attention has been paid to its effects on other biological assemblages such...

Lampman, Gregory; George, Scott D.; Baldigo, Barry P.; Lawrence, Gregory B.; Fuller, Randall L.

Year Published: 2018

What makes a first‐magnitude spring?: Global sensitivity analysis of a speleogenesis model to gain insight into karst network and spring genesis

Often, karstic conduit network geometry is unknown. This lack of knowledge represents a significant limitation when modeling flow and solute transport in karst systems. In this study, we apply Morris Method Global Sensitivity Analysis to a speleogenesis model to identify model input parameters, and combinations thereof, that most significantly...

Henson, Wesley R.; de Rooij, Rob; Graham, Wendy D.

Year Published: 2018

Simulation of groundwater flow, 1895–2010, and effects of additional groundwater withdrawals on future stream base flow in the Elkhorn and Loup River Basins, central Nebraska—Phase three

The U.S. Geological Survey, in cooperation with the Lewis and Clark, Lower Elkhorn, Lower Loup, Lower Platte North, Lower Niobrara, Middle Niobrara, Upper Elkhorn, and the Upper Loup Natural Resources Districts, designed a study to refine the spatial and temporal discretization of a previously modeled area. This updated study focused on a 30,...

Flynn, Amanda T.; Stanton, Jennifer S.
Flynn, A.T., and Stanton, J.S., 2018, Simulation of groundwater flow, 1895–2010, and effects of additional groundwater withdrawals on future stream base flow in the Elkhorn and Loup River Basins, central Nebraska—Phase three: U.S. Geological Survey Scientific Investigations Report 2018–5106, 65 p., https://doi.org/10.3133/sir20185106.

Year Published: 2018

Quantifying climate sensitivity and climate-driven change in North American amphibian communities

Changing climate will impact species’ ranges only when environmental variability directly impacts the demography of local populations. However, measurement of demographic responses to climate change has largely been limited to single species and locations. Here we show that amphibian communities are responsive to climatic variability, using >...

Miller, David A.W.; Campbell Grant, Evan H.; Muths, Erin L.; Amburgey, Staci M.; Adams, M.J.; Joseph, Maxwell B.; Waddle, J. Hardin; Johnson, Pieter T.J.; Ryan, Maureen E.; Schmidt, Benedikt R.; Calhoun, Daniel L.; Davis, Courtney L.; Fisher, Robert N.; Green, David M.; Hossack, Blake R.; Rittenhouse, Tracy A.G.; Walls, Susan C.; Bailey, Larissa L.; Cruickshank, Sam S.; Fellers, Gary M.; Gorman, Thomas A.; Haas, Carola A.; Hughson, Ward; Pilliod, David S.; Price, Steven J.; Ray, Andrew M.; Sadinski, Walter; Saenz, Daniel; Barichivich, William J.; Brand, Adrianne B,; Brehme, Cheryl S.; Dagit, Rosi; Delaney, Katy S.; Glorioso, Brad M.; Kats, Lee B.; Kleeman, Patrick M.; Pearl, Christopher; Rochester, Carlton J.; Riley, Seth P. D.; Roth, Mark F.; Sigafus, Brent
Miller, D. A. W., Grant, E. H. C., Muths, E., Amburgey, S. M., Adams, M. J., Joseph, M. B., Waddle, J. H., Johnson, P. J. T., Ryan, M. E., Schmid, B. R., Calhoun, D. L., Davis, C. L., Fisher, R. N., Green, D. M., Hossack, B. R., Rittenhouse, T. A. G., Walls, S. C., Bailey, L. L., Cruickshank, S. S., Fellers, G. M., Gorman, T. A., Haas, C. A., Hughson, W., Pilliod, D. S., Price, S. J., Ray, A. M., Sadinski, W., Saenz, D., Barichivich, W. J., Brand, A. B., Brehme, C. S., Dagit, R., Delaney, K. S., Glorioso, B. M., Kats, L. B., Kleeman, P. M., Pearl, C. A., Rochester, C. J., Riley, S. P. D., Roth, M., and Sigafus, B. H., 2018, Quantifying climate sensitivity and climate-driven change in North American amphibian communities: Nature Communications, v. 9, no. Article number: 3926, p. 1-15. https://doi.org/10.1038/s41467-018-06157-6

Year Published: 2018

Groundwater contributions to excessive algal growth in the East Fork Carson River, Carson Valley, west-central Nevada, 2010 and 2012

Excessive algal growth and low dissolved oxygen concentrations were observed during low streamflow conditions during summer months along a 5,800-foot reach of the East Fork Carson River in Carson Valley, west-central Nevada. Algal growth from nutrient enrichment of a stream reduces aquatic diversity, threatens fish ecology and stream health, and...

Alvarez, Nancy L.; Pahl, Randy A.; Rosen, Michael R.
Alvarez, N.L., Pahl, R.A, and Rosen, M.R., 2018, Groundwater contributions to excessive algal growth in the East Fork Carson River, Carson Valley, west-central Nevada, 2010 and 2012: U.S. Geological Survey Scientific Investigations Report 2018–5102, 94 p., https://doi.org/10.3133/sir20185102.

Year Published: 2018

Effects of urban stormwater and iron‐enhanced sand filtration on Daphnia magna and Pimephales promelas

Urban stormwater is an important but incompletely characterized contributor to surface‐water toxicity. The present study used 5 bioassays of 2 model organisms (Daphnia magnaand fathead minnow, Pimephales promelas) to investigate stormwater toxicity and mitigation by full‐scale iron‐enhanced sand filters (IESFs). Stormwater samples were...

Westerhoff, Benjamin M.; Fairbairn, David J.; Ferrey, Mark L.; Matilla, Adriana; Kunkel, Jordan; Elliott, Sarah M.; Kiesling, Richard L.; Woodruff, Dustin; Schoenfuss, Heiko L.
Westerhoff, B.M., Fairbairn, D.J., Ferrey, M.L., Matilla, A., Kunkel, J., Elliott, S.M., Kiesling, R.L., Woodruff, D., Schoenfuss, H.L., 2018. Effects of urban stormwater and iron-enhanced sand filtration on Daphnia magna and Pimephales promelas. Environmental Toxicology & Chemistry 37: 2645-2659. doi: 10.1002/etc.4227

Year Published: 2018

Williston Basin groundwater availability, United States and Canada

The Williston Basin contains important oil and gas resources for the Nation. Freshwater supplies are limited in this semiarid area, and oil and gas development can require large volumes of freshwater. Groundwater is the primary source of water for many water users in the Williston Basin, so to better understand these resources, the U.S. Geological...

Thamke, Joanna N.; Long, Andrew J.; Davis, Kyle W.
Thamke, J.N., Long, A.J., and Davis, K.W., 2018, Williston Basin groundwater availability, United States and Canada: U.S. Geological Survey Fact Sheet 2018-3046, 4 p., https://doi.org/10.3133/fs20183046.

Year Published: 2018

Groundwater availability of the Williston Basin, United States and Canada

Executive SummaryThe Williston Basin of the Northern Great Plains is a sedimentary basin—a geologic bowl-like structure filled with layered sedimentary rocks dating as far back as the Paleozoic age. The basin, which is nationally important for the production of energy resources, spans Montana, North Dakota, and South Dakota in the United States,...

Long, Andrew J.; Thamke, Joanna N.; Davis, Kyle W.; Bartos, Timothy T.
Long, A.J., Thamke, J.N., Davis, K.W., and Bartos, T.T., 2018, Groundwater availability of the Williston Basin, United States and Canada: U.S. Geological Survey Professional Paper 1841, 42 p., https://doi.org/10.3133/pp1841.

Year Published: 2018

Groundwater salinity mapping using geophysical log analysis within the Fruitvale and Rosedale Ranch oil fields, Kern County, California, USA

A method is presented for deriving a volume model of groundwater total dissolved solids (TDS) from borehole geophysical and aqueous geochemical measurements. While previous TDS mapping techniques have proved useful in the hydrogeologic setting in which they were developed, they may yield poor results in settings with lithological heterogeneity,...

Stephens, Michael J.; Shimabukuro, David H.; Gillespie, Janice M.; Chang, Will
Stephens, M.J., Shimabukuro, D.H., Gillespie, J.M., Chang, W, 2018, Groundwater salinity mapping using geophysical log analysis within the Fruitvale and Rosedale Ranch oil fields, Kern County, California, USA: Hydrogeology Journal, https://doi.org/10.1007/s10040-018-1872-5.

Year Published: 2018

Sediment Source Assessment Using Sediment Fingerprints

ProblemSediment is one of the most common causes of loss of stream-biologic integrity, whether in suspension in the water column, or as deposition on a stream or lake bottom. Fine-grained silts and clays are of particular concern because they can degrade habitat and often carry phosphorus and (or) other contaminants harmful to humans and aquatic...

Gellis, Allen C.; Gorman Sanisaca, Lillian E.; Cashman, Matthew J.
Attribution: Water Resources
Gellis, A.C., Gorman Sanisaca, L.E., and Cashman, M.J., 2018, Sediment source assessment using sediment fingerprints: U.S. Geological Survey Fact Sheet 2018–3008, 2 p., https://doi.org/10.3133/fs20183008.

Year Published: 2018

Flood-inundation maps for the lower Pawcatuck River in Westerly, Rhode Island, and Stonington and North Stonington, Connecticut

A series of 11 digital flood-inundation maps was developed for a 5.5-mile reach of the lower Pawcatuck River in Westerly, Rhode Island, and Stonington and North Stonington, Connecticut, by the U.S. Geological Survey (USGS) in cooperation with the Town of Westerly, Rhode Island, and the Rhode Island Office of Housing and Community Development. The...

Bent, Gardner C.; Lombard, Pamela J.
Bent, G.C., and Lombard, P.J., 2018, Flood-inundation maps for the lower Pawcatuck River in Westerly, Rhode Island, and Stonington and North Stonington, Connecticut: U.S. Geological Survey Scientific Investigations Report 2018–5112, 16 p., https://doi.org/10.3133/sir20185112.

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: 1,355
Cross section of deposited sediment in the Grand Canyon, AZ
August 9, 2018

Cross section of deposited sediment in the Grand Canyon, AZ

Cross section of deposited sediment in the Grand Canyon, AZ

USGS scientists on the Colorado River in the Grand Canyon, AZ
August 9, 2018

USGS scientists on the Colorado River in the Grand Canyon, AZ

USGS scientists on the Colorado River in the Grand Canyon, AZ

Photo of scientist operating small drone in the field
August 8, 2018

Using drones to study groundwater

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

...
Attribution: Water Resources
July 26, 2018

PubTalk 7/2018— Extreme acid mine drainage at Iron Mountain California

Title: Iron Mountain, California: An Extreme Acid Mine Drainage Environment

  • "The world's most acid water" — explaining negative pH
  • Colorful mineral salts that store metals and acidity in underground mine workings
  • Microbial iron oxidation and formation of pipe scale in the water treatment system
  • Challenges and successes of
...
Aerial image of stream and adjacent wetlands
July 18, 2018

Drone image of stream

Aerial image of stream and wetlands collected using a small unoccupied aicraft (sUAS) or drone at Ashville Bridge Creek, Back Bay National Wildlife Refuge (NWR), Virginia Beach, Virginia.

Attribution: Water Resources
June 30, 2018

Understanding Floods | Long-term Streamflow Data Collection (AD)

The USGS is developing methods to improve data collection during floods to gain new insight into the rise and fall of flood waters. In the past, the only data left behind after a flood was how high the water got, or the peak of the flood. This video presents the methodology that hydrologists are using to set up a Continuous Slope-area Reach in remote areas that are

...
June 30, 2018

Understanding Floods | Long-term Streamflow Data Collection

The USGS is developing methods to improve data collection during floods to gain new insight into the rise and fall of flood waters. In the past, the only data left behind after a flood was how high the water got, or the peak of the flood. This video presents the methodology that hydrologists are using to set up a Continuous Slope-area Reach in remote areas that are

...
Water Sampling on the Floodplain of the Missouri River
June 29, 2018

Water Sampling on the Floodplain of the Missouri River

Water Sampling on the Floodplain of the Missouri River

Filter Total Items: 387
Date published: March 15, 2017

Information Flows Freely, Even in a Drought

The Colorado River system provides about 35 million Americans with a portion of their water supply. It irrigates 5½ million acres of land in the West and provides water to tribes, parks, and wildlife. The system serves parts of seven States and Mexico—but reservoir levels have crept lower over the past several years, sparking questions about how much water remains and who will have access.

Date published: March 13, 2017

Water managers explore new strategies to protect fish in California’s Bay Delta

The water in the Delta arrives primarily from the Sacramento and San Joaquin Rivers, supplying water for more than 22 million people. This water source supports California’s trillion-dollar economy—the sixth largest in the world—and its $27 billion agricultural industry.

Date published: March 9, 2017

How Well Do You Know Groundwater

Groundwater, which flows out of sight through aquifers beneath our feet, is one of the Nation’s most important natural resources. In recognition of National Groundwater Awareness Week, March 5–11, 2017, here’s an opportunity to put your knowledge of this vital resource to the test!

Attribution: Water Resources
Date published: March 8, 2017

Understanding Managed Aquifer Recharge as a Water Storage Option in the Pojoaque River Basin

In order to provide long-term storage of diverted surface water from the Rio Grande as part of the Aamodt water rights settlement, managed aquifer recharge by surface infiltration in Pojoaque River Basin arroyos was proposed as an option.

Date published: March 7, 2017

Worth the Weight: New Table Aims to Clarify Variable Atomic Weight Values

The new table includes both standard and conventional atomic weights values to clarify that many atomic weights have natural variation and to provide single values for chemical education use

Attribution: Water Resources
Date published: March 6, 2017

The Challenge of Tracking Nutrient Pollution 2,300 Miles

Nitrogen and phosphorus are essential nutrients—yet too much of a good thing is not always a good thing. Scientists are investigating nutrient pollution down the Mississippi River.

Attribution: Water Resources
Date published: March 6, 2017

USGS Finds Elevated Levels of Arsenic, Radon, Methane in Some Private Wells in Lycoming County, Pennsylvania

Tests of 75 private drinking water wells in Lycoming County, in north-central Pennsylvania, found water from most of the sampled wells contained concentrations of radon that exceeded a proposed, nonbinding health standard for drinking water. Smaller percentages of the wells contained concentrations of arsenic or methane that exceed existing drinking water standards.

Date published: March 2, 2017

Human, Cattle Viruses Detected in Some Great Lakes Tributaries

Human and bovine, or cattle, viruses were detected in a small percentage of some Great Lakes Basin streams, with human viruses more prevalent in urban streams and bovine viruses more common in streams in agricultural areas, according to a recent U.S. Geological Survey-led study.

Date published: February 28, 2017

New USGS Streamgages Provide Flood Monitoring for Additional Philadelphia Neighborhoods

Philadelphia communities along the Schuylkill River and Darby Creek now have new tools to help inform residents of impending flooding. The U.S. Geological Survey recently installed three new streamgages in Manayunk, Eastwick, and downtown near 30th St., which will monitor water levels, and provide vital data used by emergency managers and flood forecasters to help protect lives and property. 

Date published: February 27, 2017

40-year trend study finds signs of improved water quality in New Jersey streams

A USGS analysis of New Jersey water quality trends found levels of total nitrogen and total phosphorus, which fuel algae blooms, declined or stayed the same at most stream sites between the 1970s and 2011. At all sites studied, chlorides from road salt increased over that time.

Date published: February 22, 2017

South Dakota Native to Head USGS Dakota Water Science Center

Joyce E. Williamson, a native of South Dakota and a South Dakota School of Mines and Technology alumna, was selected as the director of the newly formed U.S. Geological Survey Dakota Water Science Center. Williamson is located in the center’s Rapid City, South Dakota, office. 

Date published: February 22, 2017

Sediment Flows into Galveston Bay Studied to Help Understand Health of Watershed

A better understanding of sediment and freshwater flow into Galveston Bay is now available from a new U.S. Geological Survey report, done in cooperation with the Texas Water Development Board, and the Galveston Bay Estuary Program.

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