Unified Interior Regions

Region 1: North Atlantic-Appalachian

February Photo Contest

February Photo Contest

Check out the winning photographs in the February 2020 Photo Contest! Categories include People, USGS at Work, Where We Work, and Honorable Mention

See the photos!

Regions L2 Landing Page Tabs

We conduct impartial, multi- and interdisciplinary research and monitoring on a large range of natural-resource issues that impact the quality of life of citizens and wildlife throughout the New England and Mid-Atlantic states of Connecticut, Delaware, Maine, Maryland, Massachusetts, New Hampshire, New Jersey, New York, Pennsylvania, Rhode Island, West Virginia, Vermont and Virginia.

News

Date published: May 27, 2020

The USGS is Ready to Respond During the 2020 Atlantic Hurricane Season

The 2020 Atlantic hurricane season starts June 1, and the U.S. Geological Survey is prepared to provide science that can help guide efforts to protect lives and property if a major storm makes landfall this season.

Date published: May 26, 2020

USGS Scientists Find Seafloor Faults Near Puerto Rico Quakes’ Epicenters

Most residents of southern Puerto Rico were startled by the sequence of earthquakes that began Dec. 28, 2019 and included a magnitude 6.4 quake on Jan. 7, 2020. Aftershocks are expected to continue for years, including some relatively strong ones, like a May 2 magnitude 5.4 temblor

Date published: May 12, 2020

USGS Responds to Spring Flooding

U.S. Geological Survey field crews are measuring flooding across the country as spring weather is in full swing. Warming temperatures, increased precipitation and snowmelt have caused moderate to major flooding in the upper Midwest, East Coast, Central Plains and the Southeast portions of the country.

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Image of well that is part of water quality monitoring network, Chester County, PA
Date Published: May 7, 2020
Status: Active

Pennsylvania Groundwater Quality Monitoring Network

USGS Pennsylvania Water Science Center, in cooperation with the Pennsylvania Department of Environmental Protection, samples 28 wells biannually to monitor ambient groundwater quality conditions in a variety of settings throughout Pennsylvania.

American Kestrel (Falco sparverius)
Date Published: May 4, 2020
Status: Active

Hazard and Risk of Anticoagulant Rodenticides to Predatory and Scavenging Wildlife

Invasive mammalian predators are the most damaging group of animals affecting global biodiversity.  When introduced on remote islands, alien rodent species can devastate local biota and have been linked to approximately 30% of all extinctions. In addition, rodents can also consume and spoil crops, and serve as disease vectors that affect humans.  Starting in the 20th century,...

Collecting blanks for PFAS from freshly decontaminated equipment.
Date Published: May 1, 2020
Status: Active

Hydrologic and Water Quality Studies of PFAS in Pennsylvania

USGS is working with Federal, state, and local partners to monitor and evaluate perfluoroalkyl and polyfluoroalkyl substances (PFAS) in the Pennsylvania's groundwater and surface waters.

Citizen Scientists monitoring Avian populations in the Gulf Coast National Parks
Date Published: April 30, 2020
Status: Active

Monitoring Birds in National Parks of the Gulf Coast Network

The Challenge: Avian monitoring within the Gulf Coast Network of the National Park Service is challenged to provide valid quantitative data on bird populations within park boundaries with limited financial input. Thus, citizen science (volunteer) bird monitoring has been proposed to achieve reliable estimates of bird populations and to assess the effects of habitat change and temporal dynamics...

Temporal dynamics of forest structure and coarse woody debris are being measured
Date Published: April 30, 2020
Status: Active

Forest Structure Resulting from ‘Wildlife Forestry Silviculture’

Wildlife forestry is management of forest resources, within sites and across landscapes, to provide sustainable, desirable habitat conditions for all forest-dependent (silvicolous) fauna while concurrently yielding economically viable, quality timber products. In practice, however, management decisions associated with wildlife forestry often reflect a desire to provide suitable habitat for...

Snow-laden Hemlocks on Little Yellow Creek. A mix of shadows and reflections are draped on the creek.
Date Published: April 13, 2020
Status: Active

Surface Water-Quality Monitoring Network (WQN)

Pennsylvania’s Statewide Surface Water-Quality Monitoring Network (WQN) currently consists of 124 sites that are sampled between 6 and 20 times a year. Chemical analysis includes nutrient, major ions, and selected metals. Pesticide sampling is conducted twice a year at 5 locations. Biological sampling for benthic macroinvertebrates is conducted annually at 80 sites.

The WQN was...

Contacts: Andrew G Reif
Rafinesque's Cabree
Date Published: April 8, 2020
Status: Active

Rafinesque’s Mammals

The Challenge: Taxonomic nomenclature relies, in part, upon an accurate taxonomic history in order to establish the correct name for a taxon. Constantine S. Rafinesque (1783–1840), was a knowledgeable North American natural historian who was is responsible for describing and naming such iconic American mammals as the mule deer [Odocoileus hemionus (Rafinesque, 1817)] and the white-footed mouse...

Inverted x-rays of femurs of a least shrew
Date Published: April 8, 2020
Status: Active

Survival of the Least Fit: Incidence of Physical Trauma in a Wild Mammal Community

The Challenge: It has been generally considered that a severe injury to a wild mammal that seemingly limits its ability to forage for food or escape predators will almost certainly lead to that individual’s demise.  Inspection of skeletons of wild caught small mammals, however, has revealed a surprising number of individuals with healed fractures of the skeletal bones―including the primary...

Tree shrew cover page for Journal of Mammalogy
Date Published: April 8, 2020
Status: Active

Diversity and Biogeography of Treeshrews

The Challenge: Treeshrews (order Scandentia) are small-bodied mammals endemic to South and Southeast Asia. Since it was first described in 1820, the Common Treeshrew (Tupaia glis) has had a complex taxonomic history that has led to widely variable estimates of diversity, misidentification of populations, and general confusion regarding it and closely related species. One result is that T. glis...

Sea Otter
Date Published: April 8, 2020
Status: Active

Biodiversity of North American Mammals

The Challenge: Despite more than a century and a half of study, accurate understanding of the diversity North American mammalian species and the distribution of those species remains unrefined. Yet this understanding is essential for determining the conservation status of species, for mapping out potential disease reservoirs, and for understanding the response of species to habitat...

Shrew bones on top of a penny
Date Published: April 8, 2020
Status: Active

How Mammals Move: Locomotory Function in the Soricidae

The Challenge: The postcranial skeletons of mammals exhibit tremendous variation in form that partly relates to phylogeny (who a particular species is related to) and partly to locomotory function (how that species moves through its environment). Understanding the contributions of these two factors is important because phylogenetic characters assist in working out evolutionary relationships,...

Bronze reliquary for a shrew from the Late Period of ancient Egypt.
Date Published: April 8, 2020
Status: Active

What Ancient Egyptian Shrew Mummies Reveal About Small Mammal Responses to Climate Change

The Challenge: Ancient Egyptians mummified animals for a variety of reasons, not the least of which was as votive offerings to certain deities. Among the six species of shrews that have been identified as mummies, one is now extinct, one is no longer occurs in Egypt, and the remaining four have more restricted distributions in the country. One of the latter species also exhibits significantly...

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Water Alert map screenshot
March 4, 2020

The U.S. Geological Survey WaterAlert service sends e-mail or text (SMS) messages when certain parameters, as measured by a USGS real-time data-collection station, exceed user-definable thresholds. The development and maintenance of the WaterAlert system is supported by the USGS and its partners, including numerous federal, state, and local agencies.

USGS
December 11, 2019

From April 2013 to August 2015, the U.S. Geological Survey, in cooperation with the Town of Enfield and the Tompkins County Planning Department, collected horizontal-to-vertical seismic soundings at 69 locations in the Enfield Creek valley to help determine thickness of the unconsolidated deposits and depth to bedrock. The HVSR technique, commonly referred to as the passive-seismic metho

Photograph of a restored tidal restriction at Bass Creek, Cape Cod, MA.
December 3, 2019

. In this study, sites were selected to compare salt marshes restored over a range of years and to compare marshes upstream and downstream from a restored tidal restriction. Salt marshes downstream from tidal restrictions represent "natural" conditions because hydrology was not substantially altered, whereas marshes upstream from repaired culverts represent "restored" conditions.

USGS
November 5, 2019

Over 300 samples were collected in New York, Vermont, and Massachusetts from wastewater treatment facilities (20 locations), drinking water facilities (9 locations), streams (53 locations), lakes (2 locations), a bay (1 location), and a POCIS (Polar Organic Chemical Integrative Sampler) blank sample between April 2009 and October 2018. This data release prov

small stream in middle of marshy area with mountains and trees in background
October 15, 2019

Transport of material in an estuary is important for water quality and hazards concern. We studied these processes in the Hudson River Estuary, located along the northeast coast of the U.S. using the COAWST numerical modeling system. The model grid extends from the south at the Battery, NY to the north in Troy, NY.

Study sites for West Falmouth Harbor, MA data release
October 15, 2019

The development of Submerged Aquatic Vegetation (SAV) growth model within the Coupled Ocean-Atmosphere-Wave-Sediment Transport (COAWST) model leads to a change in SAV biomass. The SAV biomass is computed from temperature, nutrient loading and light predictions obtained from coupled hydrodynamics (temperature), bio-geochemistry (nutrients) and bio-optical (light) models.

Photograph of seastars, blood stars, mussels and barnacles
October 15, 2019

This is part of the effort to map geologic substrates of the Stellwagen Bank National Marine Sanctuary region off Boston, MA. The overall goal is to develop high-resolution (1:25,000) interpretive maps, based on multibeam sonar data and seabed sampling, showing surficial geology and seabed sediment dynamics.  The Sanctuary's research vessel, R/V Auk, visited 57 locations on Stellwagen Bank.

USGS
October 2, 2019

This data release contains the boundaries of assessment units and input data for the assessment of undiscovered gas resources in the Middle Devonian Marcellus Shale of the Appalachian Basin Province, 2019. The Assessment Unit is the fundamental unit used in the National Assessment Project for the assessment of undiscovered oil and gas resources. The Assessment Unit is defined within the conte

USGS
October 2, 2019

This data release contains the boundaries of assessment units and input data for the assessment of undiscovered gas hydrate resources on the north slope of Alaska. The Assessment Unit is the fundamental unit used in the National Assessment Project for the assessment of undiscovered oil and gas resources. The Assessment Unit is defined within the context of the higher-level Total Petroleum Syste

USGS
September 23, 2019

Major-element and trace-element concentrations in 76 core samples and seven surface samples of rocks from the Coles Hill uranium deposit and vicinity, Pittsylvania County, south-central Virginia are presented as tabular digital data. The Coles Hill deposit is the largest unmined uranium deposit in the United States. The data were collected to 1) characterize the chemistry of variably uraniu

A map of Fire Island, a barrier island along the south shore of Long Island, New York, including bathymetry
July 15, 2019

These spatial data support research on the Quaternary evolution of the Fire Island coastal system and provide baseline information for research on coastal processes along southern Long Island. For more information about the WHCMSC Field Activity, see https://cmgds.marine.usgs.gov/fan_info.php?fan=2011-005-FA.

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USGS
October 24, 2017

The Water-Monitoring-Sites Mapper is an interactive map of West Virginia water monitoring-site locations from the USGS National Water Information System (NWIS). It provides access to surface water, groundwater, and water quality monitoring data for active sites. The functionality includes query, select, tabular display by county, hydrologic unit code (HUC), and exporting spatial and tabular data.

USGS
October 20, 2017

The Water-Monitoring-Sites Mapper is an interactive map of Virginia water monitoring-site locations from the USGS National Water Information System (NWIS). It provides access to surface water, groundwater, and water quality monitoring data for active sites. The functionality includes query, select, tabular display by county, hydrologic unit code (HUC), and exporting spatial and tabular data.

West Virginia Real-time Precipitation Network
May 22, 2017

This interactive map shows current and cumulative rainfall total for precipitation sites in West Virginia.  Map provides real-time precipitation radar image to overlay from National Weather Service.

Virginia Real-Time Precipitation Network
May 18, 2017

This interactive map shows current and cumulative rainfall total for precipitation sites in Virginia.  Map provides real-time precipitation radar image to overlay from National Weather Service. 

USGS Storm-Tide Mapper and Data Services
March 8, 2016

The USGS Storm Tide Mapper is a tool for viewing, analyzing, and accessing storm tide data collected during and after hurricanes and Nor’easters. The USGS Storm Tide Mapper will continue to provide a unified and consistent source of real-time and archived storm-tide data.

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Year Published: 2020

Sediments and the sea floor of the continental shelves and coastal waters of the United States—About the usSEABED integrated sea-floor-characterization database, built with the dbSEABED processing system

Since the second half of the 20th century, there has been an increase in scientific interest, research effort, and information gathered on the geologic sedimentary character of the continental margins of the United States. Data and information from thousands of sources have increased our scientific understanding of the character of the margin...

Buczkowski, Brian J.; Reid, Jane A.; Jenkins, Chris J.
Buczkowski, B.J., Reid, J.A., and Jenkins, C.J., 2020, Sediments and the sea floor of the continental shelves and coastal waters of the United States—About the usSEABED integrated sea-floor-characterization database, built with the dbSEABED processing system: U.S. Geological Survey Open-File Report 2020–1046, 14 p., https://doi.org/10.3133/ofr20201046.

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Year Published: 2020

Red Knot (Calidris canutus) research—Preliminary results and future opportunities

The Red Knot, Calidris canutus, is a highly migratory shorebird with a cosmopolitan distribution. Six subspecies have been identified, two of which occur regularly in North America (C.c. rufa and C.c. roselaari). Given their long-distance migrations through many jurisdictions and conservation status, tools are needed to reliably distinguish the...

Kazyak, David; Aunins, Aaron; Johnson, Robin
Kazyak, D., Aunins, A., and Johnson, R., 2020, Red Knot (Calidris canutus) research—Preliminary results and future opportunities: U.S. Geological Survey Open-File Report 2020–1050, 6 p., https://doi.org/10.3133/ofr20201050.

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Year Published: 2020

Groundwater quality in relation to drinking water health standards and geochemical characteristics for 54 domestic wells in Clinton County, Pennsylvania, 2017

Despite the reliance on groundwater by approximately 2.4 million rural Pennsylvania residents, publicly available data to characterize the quality of private well water are limited. As part of a regional effort to characterize groundwater in rural areas of Pennsylvania, samples from 54 domestic wells in Clinton County were collected and analyzed...

Clune, John W.; Cravotta, Charles A.
Clune, J.W., and Cravotta, C.A., III, 2020, Groundwater quality in relation to drinking water health standards and geochemical characteristics for 54 domestic wells in Clinton County, Pennsylvania, 2017: U.S. Geological Survey Scientific Investigations Report 2020–5022, 72 p., https://doi.org/10.3133/sir20205022.

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Year Published: 2020

Fluoride occurrence in United States groundwater

Data from 38,105 wells were used to characterize fluoride (F) occurrence in untreated United States (U.S.) groundwater. For domestic wells (n = 11,032), water from which is generally not purposely fluoridated or monitored for quality, 10.9% of the samples have F concentrations >0.7 mg/L (U.S. Public Health Service recommended optimal F...

McMahon, Peter B.; Brown, Craig J.; Johnson, Tyler D.; Belitz, Kenneth; Lindsey, Bruce D.

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Year Published: 2020

Harnessing multiple models for outbreak management

The coronavirus disease 2019 (COVID-19) pandemic has triggered efforts by multiple modeling groups to forecast disease trajectory, assess interventions, and improve understanding of the pathogen. Such models can often differ substantially in their projections and recommendations, reflecting different policy assumptions and objectives, as well as...

Shea, Katriona; Runge, Michael C.; Pannell, David; Probert, William J M; Li, Shou-Li; Tildesley, Michael J.; Ferrari, Matthew J

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Year Published: 2020

Report of the River Master of the Delaware River for the period December 1, 2010–November 30, 2011

A Decree of the Supreme Court of the United States, entered June 7, 1954, established the position of Delaware River Master within the U.S. Geological Survey. In addition, the Decree authorizes diversion of water from the Delaware River Basin and requires compensating releases from certain reservoirs, owned by New York City, to be made under the...

DiFrenna, Vincent J.; Andrews, William J.; Russell, Kendra L.; Norris, J. Michael; Mason,, Robert R.
DiFrenna, V.J., Andrews, W.J., Russell, K.L., Norris, J.M., and Mason, R.R., Jr., 2020, Report of the River Master of the Delaware River for the period December 1, 2010–November 30, 2011: U.S. Geological Survey Open-File Report 2020–1020, 127 p., https://doi.org/10.3133/ofr20201020.

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Year Published: 2020

Biological control of Aedes mosquito larvae with carnivorous aquatic plant, Utricularia macrorhiza

BackgroundBiological controls with predators of larval mosquito vectors have historically focused almost exclusively on insectivorous animals, with few studies examining predatory plants as potential larvacidal agents. In this study, we experimentally evaluate a generalist plant predator of North America, Utricularia macrorhiza, the common...

Couret, Jannelle; Notarangelo, Marco; Veera, Sarashwathi; LeClaire-Conway, Noah; Ginsberg, Howard S.; LeBrun, Roger A.

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Year Published: 2020

Emerging diseases of avian wildlife

Climate change and the interaction with humans and domestic species influences disease in avian wildlife. This article provides updated information on emerging disease conditions such as the spread of an Asian tick, Haemaphysalis longicornis, and its associated diseases among migratory birds in the eastern United States; lymphoproliferative...

Tyson-Pello, Susan J; Olsen, Glenn H.

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Year Published: 2020

Passive sampling of groundwater wells for determination of water chemistry

IntroductionPassive groundwater sampling is defined as the collection of a water sample from a well without the use of purging by a pump or retrieval by a bailer (Interstate Technology and Regulatory Council [ITRC], 2006; American Society for Testing and Materials [ASTM], 2014). No purging means that advection of water is not involved in...

Imbrigiotta, Thomas E.; Harte, Philip T.
Imbrigiotta, T.E., and Harte, P.T., 2020, Passive sampling of groundwater wells for determination of water chemistry: U.S. Geological Survey Techniques and Methods, chap. 8, section D, book 1, 80 p., https://doi.org/10.3133/tm1d8.

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Year Published: 2020

Effects of legacy sediment removal and effects on nutrients and sediment in Big Spring Run, Lancaster County, Pennsylvania, 2009–15

Big Spring Run is a 1.68-square mile watershed underlain by mostly carbonate rock in a mixed land-use setting (part agricultural and part developed) in Lancaster County, Pennsylvania. Big Spring Run is a subwatershed of Mill Creek, a tributary to the Conestoga River. These watersheds are known contributors of nutrient and sediment loads to the...

Langland, Michael J.; Duris, Joseph W.; Zimmerman, Tammy M.; Chaplin, Jeffrey J.
Langland, M.J., Duris, J.W., Zimmerman, T.M., and Chaplin, J.J., 2020, Effects of legacy sediment removal and effects on nutrients and sediment in Big Spring Run, Lancaster County, Pennsylvania, 2009–15: U.S. Geological Survey Scientific Investigations Report 2020-5031, 28 p., https://doi.org/10.3133/sir20205031.

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Year Published: 2020

A decision framework to analyze tide-gate options for restoration of the Herring River Estuary, Massachusetts

The collective set of decisions involved with the restoration of degraded wetlands is often more complex than considering only ecological responses and outcomes. Restoration is commonly driven by a complex interaction of social, economic, and ecological factors representing the mandate of resource stewards and the values of stakeholders. The...

Smith, David R.; Eaton, Mitchell J.; Gannon, Jill J.; Smith, Timothy P.; Derleth, Eric L.; Katz, Jonathan; Bosma, Kirk F.; Leduc, Elise
Smith, D.R., Eaton, M.J., Gannon, J.J., Smith, T.P., Derleth, E.L., Katz, J., Bosma, K.F., and Leduc, E., 2020, A decision framework to analyze tide-gate options for restoration of the Herring River Estuary, Massachusetts: U.S. Geological Survey Open-File Report 2019–1115, 42 p., https://doi.org/10.3133/ofr20191115.

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Year Published: 2020

Groundwater chloride concentrations in domestic wells and proximity to roadways in Vermont, 2011–2018

The Vermont Department of Health and the U.S. Geological Survey analyzed the concentrations of chloride in groundwater samples collected from 4,319 domestic wells across Vermont between 2011 and 2018. Ninety of these wells were sampled twice and the remaining 4,229 were sampled once. This sample size represents approximately 4 percent of all wells...

Levitt, Joseph P.; Larsen, Sille L.
Levitt, J.P., and Larsen, S.L., 2020, Groundwater chloride concentrations in domestic wells and proximity to roadways in Vermont, 2011–2018: U.S. Geological Survey Open-File Report 2019–1148, 12 p., https://doi.org/10.3133/ofr20191148.

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Floodplain and Channel Evaluation Tool (FACET)
December 4, 2019

The Floodplain and Evaluation Tool (FACET) is an open-source python tool that maps the floodplain extent and derives reach-scale summaries of stream and floodplain geomorphic measurements from high-resolution digital elevation models (DEMs).

The Housatonic River near Lee, Massachusetts
December 13, 2018

This software release provides the database application that runs the Massachusetts Sustainable-Yield Estimator (MA SYE) computer program (version 2.0).

West Cornwall covered bridge spanning the Housatonic River near Cornwall Connecticut
December 13, 2018

This software release provides the database application that runs the Connecticut Streamflow and Sustainable Water Use Estimator (CT SSWUE) computer program (version 1.0).

USGS
November 14, 2017

Capture-recapture software to correct raw counts of wildlife fatalities using trial experiments for carcass detecition probability and persistence time.

trees and stream
December 15, 2016

The New York Streamflow Estimation Tool produces a complete estimated daily mean time series from which daily flow statistics can be estimated and a means for quantitative flow assessments at ungaged locations to restore and maintain the chemical, physical, and biological integrity of the Nation’s waters.

SIR 2016-5123 front cover icon
October 5, 2016

Overview

The Massachusetts Reservoir Simulation Tool is a screening-level model developed to examine the effects of reservoirs on the natural streamflow of streams in Massachusetts. The Massachusetts Reservoir Simulation Tool simulates the daily water balance equation of a water supply reservoir and estimates the magnitude, frequency and duration of spillage below the dam over the period of record.

Cover image from OFR 2015-1192
June 21, 2016

The Delaware River Basin Streamflow Estimator Tool (DRB-SET) estimates baseline and altered streamflow at a daily time step for ungaged stream locations in the Delaware River Basin for water years 1960-2010.

Pennsylvania Baseline Streamflow Estimator Screen Capture
September 26, 2012

Estimation of Baseline Daily Mean Streamflows for Ungaged Locations on Pennsylvania Streams, Water Years 1960–2008

USGS
January 16, 2012

Overview

The Connecticut River UnImpacted Streamflow Estimation (CRUISE) tool combines the utility of catchment delineation at any location along a stream with the estimation and serving of daily streamflow information. The CRUISE tool is freely-available and requires only an internet connection and Microsoft Excel version 2000 or higher. 

SIR2011-5125 front cover icon
October 19, 2011

Overview

The firm yield of a reservoir is defined as the maximum yield that can be delivered from a system without failure, even during a severe drought. The Firm Yield Estimator model (FYE) uses the daily water-balance equation to estimate reservoir storage from October 1, 1960 to September 30, 2004, which includes the most extreme drought of record.

SIR 2009-5227 front cover
June 15, 2011

Overview

The Massachusetts Sustainable-Yield Estimator is a decision-support tool that provides screening-level estimates of the sustainable yield of a basin, defined as the difference between the unregulated streamflow and a user-specified quantity of water that must remain in the stream to support such functions as recreational activities or aquatic habitat.

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A USGS field team measures spring floodwaters at Chesapeake bay's largest tributary.
May 3, 2020

USGS measures spring flooding at Chesapeake bay's largest tributary

A USGS field team, to include Pat Bowen, Kate Bowen and John Trainor, uses specialized equipment to measure spring floodwaters at Chesapeake Bay's largest tributary, the Susquehanna River in Maryland.

At this site, the team has an interesting strategy to deal with conflicts between sample-collection protocols and Covid-19 safe-distancing recommendations. Pat and

...
A USGS field team measures spring floodwaters at Chesapeake bay's largest tributary.
May 3, 2020

USGS measures spring flooding at Chesapeake bay's largest tributary

A USGS field team, to include Pat Bowen, Kate Bowen and John Trainor, uses specialized equipment to measure spring floodwaters at Chesapeake Bay's largest tributary, the Susquehanna River in Maryland.

At this site, the team has an interesting strategy to deal with conflicts between sample-collection protocols and Covid-19 safe-distancing recommendations. Pat and

...
A USGS field team measures spring floodwaters at Chesapeake bay's largest tributary.
May 3, 2020

USGS measures spring flooding at Chesapeake bay's largest tributary

A USGS field team, to include Pat Bowen, Kate Bowen and John Trainor, uses specialized equipment to measure spring floodwaters at Chesapeake Bay's largest tributary, the Susquehanna River in Maryland.

At this site, the team has an interesting strategy to deal with conflicts between sample-collection protocols and Covid-19 safe-distancing recommendations. Pat and

...
USGS hydrologist Ken McGrath measures floodwaters off a cableway on Schoharie Creek in North Blenheim, New York.
May 2, 2020

USGS measures floodwaters off a cableway in New York

USGS hydrologist Ken McGrath measures floodwaters off a cableway on Schoharie Creek in North Blenheim, New York.

USGS Responds to Spring Flooding in New York
May 1, 2020

USGS hydrographer makes a flood measurement in Tusten, NY

USGS hydrographer Dave Thompson makes a near-peak flood measurement off a bridge at Tenmile River in Tusten, New York.

man on bridge over flooding creek controlling an adcp
November 1, 2019

Fish Creek at Beck's Grove, NY 04242640

Making a discharge measurement at Fish Creek at Beck's Grove, New York, November 1, 2019.

large white machine with plastic tubing in a laboratory
October 21, 2019

Inductively Coupled Plasma Spectrophotometer for cation analyses

Inductively Coupled Plasma Spectrophotometer for cation analyses (ICP-OES)

a white machine with a clear blue front and white swirled light inside
October 21, 2019

Dissolved organic/inorganic carbon analyzer (DOC/DIC)

Dissolved organic/inorganic carbon analyzer (DOC/DIC)

man in boat hauling up a water sample from a large river
October 9, 2019

Niagara River Water Quality Sample 2019

USGS staffer Matthew Jennings collecting water quality samples on the lower Niagara River for the Great Lakes Restoration Initiative (GLRI) project. Photo by John Wernly (Public domain)

women in cableway car above water pulling orange adcp
September 12, 2019

Cableway measurement Saranac River at Plattsburgh, NY

USGS contractor Diana Phillips on September 12, 2019, making a section by section measurement at USGS 04273500 SARANAC RIVER AT PLATTSBURGH NY using an acoustic doppler current profiler (ADCP). Photo by Brian McDonald

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USGS
May 27, 2020

The 2020 Atlantic hurricane season starts June 1, and the U.S. Geological Survey is prepared to provide science that can help guide efforts to protect lives and property if a major storm makes landfall this season.

Map of seismic research site on seafloor off Puerto Rico
May 26, 2020

Most residents of southern Puerto Rico were startled by the sequence of earthquakes that began Dec. 28, 2019 and included a magnitude 6.4 quake on Jan. 7, 2020. Aftershocks are expected to continue for years, including some relatively strong ones, like a May 2 magnitude 5.4 temblor

A USGS field team measures spring floodwaters at Chesapeake bay's largest tributary.
May 12, 2020

U.S. Geological Survey field crews are measuring flooding across the country as spring weather is in full swing. Warming temperatures, increased precipitation and snowmelt have caused moderate to major flooding in the upper Midwest, East Coast, Central Plains and the Southeast portions of the country.

Hydrologic tehcnician collects a sample of untreated groundwater from a public-supply well
April 7, 2020

Groundwater in the Atlantic and Gulf Coastal Plain aquifers is old—more than 21,300 years old in more than half of 252 public-supply wells sampled. That ancient groundwater is more likely to contain concentrations of fluoride, arsenic, and polonium-210 that exceed human-health benchmarks than is younger groundwater, reports a new study from the USGS National Water Quality Program.

Close up of Bastnaesite
February 21, 2020

Risk tool identified 23 mineral commodities whose supply poses the greatest risk, including those used in consumer electronics, renewable energy, aerospace, and defense applications.

Image: Plants Vulnerability to Nitrogen Depends on Where They Grow
July 12, 2018

Land managers, regulators and other participants in market-based conservation wanting to assess the ecological benefits provided by restored, enhanced and preserved land now have a one-stop shop for the quantification tools used to measure these benefits, courtesy of the USGS and the USDA.

Ten Mile Creek
May 24, 2018

An ecosystem services approach combined with adaptive decision-making can aid land and resource managers in administering their regions for the benefit of communities and stakeholders, according to a recent report by the U.S. Geological Survey and Resources for the Future

Image shows a view of Libby Dam and Lake Koocanusa
October 25, 2017

Resource managers, regulators, and stakeholders of Montana and British Columbia’s Lake Koocanusa now have a new approach for understanding the implications of different levels of selenium, and to explore alternative selenium criteria for waters in the Lake.

USGS' Owen Brenner wading with GPS backpack
October 10, 2017

A study finds that although the “wilderness breach” created by Hurricane Sandy in 2012 has reached a relatively stable size and location, the channel and shoals will keep changing in response to weather. Related research shows the breach isn’t likely to increase storm-tide flooding in Great South Bay.

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