Unified Interior Regions

Region 1: North Atlantic-Appalachian

Our Science Centers

Our Science Centers

The NAA Region has 15 Science Centers spanning 14 NE States and Washington, DC. The Centers conduct interdisciplinary biologic, geologic, hydrologic, and energy monitoring and research addressing natural resource issues facing our nation.

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August and September Photo Contests

August and September Photo Contests

Check out the winning photographs in the August and September 2021 Photo Contests! Categories include People, USGS at Work, Where We Work, and Honorable Mention.

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Regions L2 Landing Page Tabs

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Date published: November 5, 2020
Status: Active

Region 1: North Atlantic-Appalachian PFAS Capability Team

Per- and polyfluoroalkyl substances (PFAS) are a group of anthropogenic emerging contaminants. Some PFAS have been voluntarily phased out, as exposure has been linked to adverse human health effects.

Date published: October 28, 2020
Status: Completed

New England Drought, 2020

Below average and infrequent rainfall from May through September 2020 led to an extreme hydrologic drought across much of New England, with some areas experiencing a flash (quick-onset) drought.

Date published: September 4, 2020
Status: Active

Monitoring Merrimack River Mainstem and Tidal Reaches in Massachusetts to Evaluate Water Quality Conditions, May to September 2020

The Merrimack River watershed, the 4th largest watershed in New England (Massachusetts Executive Office of Environmental Affairs, 2001), has seen substantial growth and development in recent years.

Contacts: Jason Sorenson
Date published: September 1, 2020
Status: Active

Groundwater Quality of Domestic Supply Wells in Pennsylvania

Most rural residents in Pennsylvania use groundwater from domestic supply wells for drinking, cleaning and other purposes. Some groundwater samples have been analyzed for private purposes, but those results generally are not readily available to the public. Many of the publicly available water-quality samples from rural areas were collected more than 30 years ago. Quality-assured groundwater...

Date published: August 31, 2020
Status: Active

Shale Gas and Water Resources in Pennsylvania

The Pennsylvania Water Science Center and other USGS scientists are studying water availability, use, quality, and ecology associated with development of shale-gas energy resources in Pennsylvania.

Latest Report: Potter County 'Baseline' Groundwater Quality (see Publications)

Date published: August 11, 2020
Status: Active

Samples Repository

Since 2002, the Woods Hole Coastal and Marine Science Center’s Samples Repository (WHCMSC) has been supporting research by providing secure storage for geological, biological, and geochemical samples; maintaining organization and an active inventory of these sample collections; as well as by providing access to these collections for study and reuse.

Date published: July 31, 2020
Status: Active

Streamflow Estimation from Advanced Imaging (LSPIV) in Pennsylvania

Pennsylvania Water Science Center and the Next Generation Water Observing Systems (NGWOS) Program are implementing new technologies for streamflow estimation at sites in Pennsylvania where conventional measurement techniques are inadequate.

Date published: July 24, 2020
Status: Active

New England Drought Information

Droughts are among the most costly hydrologic hazards in the United States. They are generally slow in developing, frequently occur over a long period of time, and can affect large areas and populations. The severity of a hydrologic drought is not always obvious until these water supplies are seriously depleted.

Date published: June 28, 2020
Status: Active

MD-DE-DC WSC Water Use & Water Supply Capabilities

The MD-DE-DC WSC works with state and local agencies to collect, estimate, review, and compile water use information.  Data are used in USGS groundwater and watershed models, and other USGS studies.  The data are also compiled and incorporated into the USGS national estimates of water-use.  WSC staff currently participate in various national water use projects focused on improving water use...

Date published: June 26, 2020
Status: Active

MD-DE-DC WSC Modeling Capabilities

USGS models are widely used to predict responses of hydrologic systems to changing stresses, such as increases in precipitation or ground-water pumping rates, as well as to predict the fate and movement of solutes and contaminants in water.

The USGS is at the forefront of devising new techniques and computer software to solve practical problems in the study of water resources....

Date published: June 22, 2020
Status: Active

MD-DE-DC Coding and Statistical Data Capabilities

This site is dedicated to Coding and Statistical Data that is produced and analyzed by scientists at the MD-DE-DC WSC. We use many tools at the USGS including software exclusively developed for, sometimes written by the USGS. 

Date published: June 16, 2020
Status: Active

Contaminant Fate and Transport Studies in Fractured Sedimentary Rock Aquifers at the former Naval Air Warfare Center (NAWC), West Trenton, N.J.

Contaminants associated with industrial, airport, and other activities are present in groundwater in fractured-rock aquifers, posing long-term hazards to drinking-water supplies and ecosystems. The heterogeneous character of fractured rock challenges our understanding, monitoring, and remediation of such sites.

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Date published: October 26, 2020

Petroleum geology data from hydrous and anhydrous pyrolysis residues for coals and shales from the Cambrian through the Miocene

This data release contains programmed pyrolysis, organic petrographic (reflectance), and semiquantitative X-ray diffraction mineralogy data for subsurface coal and shale samples from around the world.

Date published: October 1, 2020

New England Below Normal 28-day average streamflow compared to historical streamflow for the day of year

Below Normal 28-day average streamflow compared to historical streamflow for the day of year

Date published: September 30, 2020

Coking coal of the United States: Modern and historical locations of coking coal mining locations and chemical, rheological, petrographic, and other data from modern samples

For the open-file report we collected new coking coal samples from Alabama, Kentucky, Oklahoma and Arkansas and analyzed them for proximate and ultimate analyses; calorific value; sulfur forms; major-, minor-, and trace-element abundances; free swelling indices; Gieseler plasticity; ASTM dilatation; coal petrography, and several other tests [air-dry loss (ADL), res

Date published: August 13, 2020

GIS for focus areas of potential domestic resources of 11 critical minerals—aluminum, cobalt, graphite, lithium, niobium, platinum group elements, rare earth elements, tantalum, tin, titanium, and tungsten (version 2.0, August 2020)

In response to Executive Order 13817 of December 20, 2017, the U.S. Geological Survey (USGS) coordinated with the Bureau of Land Management (BLM) to identify 35 nonfuel minerals or mineral materials considered critical to the economic and national security of the United States (U.S.) (https://pubs.usgs.gov/of/2018/1021/ofr20181021....

Date published: August 11, 2020

Continuous Seismic Profiling (CSP) at Callahan Mine Site: May 2017 to July 2018

In May 2017 and July 2018, continuous seismic profiling (CSP) surveys were collected in Goose Pond at the Callahan Mine site. The chirp frequency CSP tool was used in the deep water. A tuned transducer (dual-echo sounder) was used in the shallow water, and the data are served separately but within this data release (See CSP-DSO). CSP methods use an acoustic sound source that trave

Date published: July 31, 2020

Organic petrographic evaluation of carbonaceous material in sediments of the Kinnickinnic River, Milwaukee, WI, U.S.A.

This study describes the application of organic petrology techniques to quantify the amount of coal and carbonaceous combustion by-products (i.e., coke, coal tar/pitch, cenospheres) in sediments taken from the Kinnickinnic River adjacent to the former site of the Milwaukee Solvay Coke and Gas Company. The site produced metallurgical coke and coal-gasification by-products from 1902-19

Date published: July 27, 2020

Loads and trends in the Chesapeake Bay nontidal monitoring network: results through Water Year 2018

The U.S. Geological Survey (USGS) has developed the nontidal network mapper to share the short-term (2009-2018) water-year nutrient and suspended-sediment load and trend results for the Chesapeake Bay Program’s (CBP) non-tidal network (NTN). The mapper provides the primary findings for nitrogen, phosphorus and suspended-sediment trends, and gives the user tools to further examine the results...

Date published: July 9, 2020

Chemical and physical data for sediment source fingerprinting of suspended and bottom sediment in Black Creek, Indiana, tributary to the Maumee River and western Lake Erie - Source samples

This data release includes physical and chemical data for samples from upland-source and streambank sampling sites in the Black Creek basin, Indiana. Data include total nitrogen and carbon concentrations, carbon species, total concentrations for 42 metals, and particle-size analysis. Source samples were identified as one of five land-use types: active cropland (corn, soybean, h

Date published: July 9, 2020

Data for multiple linear regression models for predicting microcystin concentration action-level exceedances in selected lakes in Ohio

Site-specific multiple linear regression models were developed for eight sites in Ohio—six in the Western Lake Erie Basin and two in northeast Ohio on inland reservoirs--to quickly predict action-level exceedances for a cyanotoxin, microcystin, in recreational and drinking waters used by the public. Real-time models include easily- or continuously-measured factors that do not require

Date published: July 9, 2020

Pesticide Toxicity Index (PTI) and maximum Toxic Unit (TUmax) scores and information for fish, cladocerans, and benthic invertebrates from water samples collected at National Water Quality Network sites during Water Years 2013-2017

During 2013-2017, the U.S. Geological Survey, National Water-Quality Assessment (NAWQA) Project, collected water samples year-round from the National Water Quality Network – Rivers and Streams (NWQN) and reported on 221 pesticides at 72 sites across the US in agricultural, developed, and mixed land use watersheds. Pesticide Toxicity Index (PTI) scores, a screening-

Date published: July 9, 2020

Chemical and physical data for sediment source fingerprinting of suspended and bottom sediment in Black Creek, Indiana, tributary to the Maumee River and western Lake Erie - Fluvial-target samples

This data release includes physical and chemical data for samples from fluvial targets (streambed and suspended sediment) from three sampling sites in the Black Creek basin, Indiana. Data include total nitrogen and carbon concentrations, carbon species, total concentrations for 42 metals, and particle-size analysis. Fluvial-target samples include both soft, streambed sediment and

Date published: July 8, 2020

Chesapeake Bay River Input Monitoring Network 1985-2019: Monthly loads

Nitrogen, phosphorus, and suspended-sediment loads, and changes in loads, in major rivers across the Chesapeake Bay watershed have been calculated using monitoring data from the Chesapeake Bay River Input Monitoring Network (RIM) stations for the period 1985 through 2019. Nutrient and suspended-sediment loads and changes in loads were determined by applying a weighted regression appro

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Year Published: 2021

Structured decision making and optimal bird monitoring in the northern Gulf of Mexico

The avian conservation community struggles to design and implement large scale, long-term coordinated bird monitoring programs within the northern Gulf of Mexico due to the complexity of the conservation enterprise in the region; this complexity arises from the diverse stakeholders, multiple jurisdictions, complex ecological processes, myriad...

Fournier, Auriel M.V.; Wilson, R. Randy; Lyons, James E.; Gleason, Jeffrey S.; Adams, Evan M.; Barnhill, Laurel M.; Brush, Janell M.; Cooper, Robert J.; DeMaso, Stephen J.; Driscoll, Melanie J.L.; Eaton, Mitchell J.; Frederick, Peter C.; Just, Michael G.; Seymour, Michael A.; Tirpak, John M.; Woodrey, Mark S.
Fournier, A.M.V., Wilson, R.R., Lyons, J.E., Gleason, J.S., Adams, E.M., Barnhill, L.M., Brush, J.M., Cooper, R.J., DeMaso, S.J., Driscoll, M.J.L., Eaton, M.J., Frederick, P.C., Just, M.G., Seymour, M.A., Tirpak, J.M, and Woodrey, M.S., 2021, Structured decision making and optimal bird monitoring in the northern Gulf of Mexico: U.S. Geological Survey Open-File Report 2020–1122, 62 p., https://doi.org/10.3133/ofr20201122.

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Year Published: 2021

Assessing the ecological functionality and integrity of natural ponds, excavated ponds and stormwater basins for conserving amphibian diversity

Wetlands provide ecological functionality by maintaining and promoting regional biodiversity supporting quality habitat for aquatic organisms. Globally, habitat loss, fragmentation and degradation due to increases in agricultural activities and urban development have reduced or altered geographically isolated wetlands, thus reducing...

Smalling, Kelly; Breitmeyer, Sara; Bunnell, John F.; Laidig, Kim J; Burritt, Patrick; Sobel, Marilyn; Cohl, Jonathan; Hladik, Michelle; Romanok, Kristin M.; Bradley, Paul

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Year Published: 2021

Adaptive two-stage inverse sampling design to estimate density, abundance, and occupancy of rare and clustered populations

Sampling rare and clustered populations is challenging because of the effort required to find rare units. Heuristically, a practitioner would prefer to discontinue sampling in areas where rare units of interest are apparently extremely sparse or absent. We take advantage of the characteristics of inverse sampling to adaptively inform practitioners...

Salehi, Mohammad; Smith, David R.

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Year Published: 2021

Multiple coping strategies maintain stability of a small mammal population in a resource-restricted environment

In semi-arid environments, aperiodic rainfall pulses determine plant production and resource availability for higher trophic levels, creating strong bottom-up regulation. The influence of climatic factors on population vital rates often shapes the dynamics of small mammal populations in such resource-restricted environments. Using a 21-year...

Polyakov, Anne Y; Tietje, William D; Srivathsa, Arjun; Rolland, Virginie; Hines, James E.; Oli, Madan K.

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Year Published: 2021

Geochemistry and mineralogy of metallurgical slag

Slag is a waste product from the pyrometallurgical processing of natural ores or the recycling of man-made materials. This chapter provides an overview of the geochemical and mineralogical characteristics of different types of slag. A review of the analytical methods used to determine these characteristics is also provided. Ferrous slags include...

Piatak, Nadine M.; Ettler, Vojtech; Hoppe, Darryl Andre

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Year Published: 2021

Using microbial source tracking to identify fecal contamination sources in an embayment in Hempstead Harbor on Long Island, New York

The U.S. Geological Survey worked collaboratively with the New York State Department of Environmental Conservation to assess the potential sources of fecal contamination entering Hempstead Harbor, an embayment on the northern shore of Nassau County, Long Island, New York. Water samples are routinely collected by the New York State Department of...

Tagliaferri, Tristen N.; Fisher, Shawn C.; Kephart, Christopher M.; Cheung, Natalie; Reed, Ariel P.; Welk, Robert J.
Tagliaferri, T.N., Fisher, S.C., Kephart, C.M., Cheung, N., Reed, A.P., and Welk, R.J., 2021, Using microbial source tracking to identify fecal contamination sources in an embayment in Hempstead Harbor on Long Island, New York: U.S. Geological Survey Scientific Investigations Report 2021–5042, 19 p., https://doi.org/10.3133/sir20215042.

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Year Published: 2021

Climate impacts on the Gulf of Maine ecosystem: A review of observed and expected changes in 2050 from rising temperatures

The Gulf of Maine has recently experienced its warmest 5-year period (2015–2020) in the instrumental record. This warming was associated with a decline in the signature subarctic zooplankton species, Calanus finmarchicus. The temperature changes have also led to impacts on commercial species such as Atlantic cod (Gadus morhua) and American...

Pershing, Andrew J.; Alexander, Michael A.; Brady, Damian C.; Brickman, David; Curchitser, Enrique N.; Diamond, Anthony W.; McClenachan, Loren; Mills, Kathy; Nichols, Owen; Pendleton, Daniel; Record, Nicholas; Scott, James; Staudinger, Michelle; Wang, Yanjun

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Year Published: 2021

Invader removal triggers competitive release in a threatened avian predator

Invasive species can cause extinctions of native species and widespread biodiversity loss. Invader removal is a common management response, but the use of long-term field experiments to characterize effectiveness of removals in benefitting impacted native species is rare. We used a large-scale removal experiment to investigate the demographic...

Wiens, David; Dugger, Catherine M.; Higley, J. Mark; Lesmeister, Damon B.; Franklin, Alan B.; Hamm, Keith A.; White, Gary C.; Dilione, Krista E.; Simon, David C.; Bown, Robin R.; Carlson, Peter C.; Yackulic, Charles; Nichols, James D.; Hines, James E.; Davis, Raymond J.; Lamphear, David W.; McCafferty, Christopher; McDonald, Trent L.; Sovern, Stan G.

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Year Published: 2021

Forest area to support landbird population goals for the Mississippi Alluvial Valley

Historically, the Mississippi Alluvial Valley (MAV) (Partners in Flight Bird Conservation Region #26) was predominantly bottomland hardwood forest, but natural vegetation has been cleared from about 80 percent of this ecoregion and converted primarily to agriculture. Because most bird species that are of conservation concern in this region are...

Twedt, Daniel J.; Mini, Anne
Twedt, D.J., and Mini, A., 2021, Forest area to support landbird population goals for the Mississippi Alluvial Valley (ver. 1.1, August 2021): U.S. Geological Survey Open-File Report 2020–1097, 84 p., https://doi.org/10.3133/ofr20201097.

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Year Published: 2021

How do lizard niches conserve, diverge or converge? Further exploration of saurian evolutionary ecology

Environmental conditions on Earth are repeated in non-random patterns that often coincide with species from different regions and time periods having consistent combinations of morphological, physiological and behavioral traits. Observation of repeated trait combinations among species confronting similar environmental conditions suggest that...

Pelegrin, Nicolás; Winemiller, Kirk O.; Vitt, Laurie J.; Fitzgerald, Daniel Bruce; Pianka, Eric R.

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Year Published: 2021

Modeling morphodynamics of coastal response to extreme events: What shape are we in?

This review focuses on recent advances in process-based numerical models of the impact of extreme storms on sandy coasts. Driven by larger-scale models of meteorology and hydrodynamics, these models simulate morphodynamics across the Sallenger storm-impact scale, including swash, collision, overwash, and inundation. Models are becoming both wider...

Sherwood, Christopher R.; van Dongeren, Ap; Doyle, James; Hegermiller, Christie; Hsu, T.J.; Kalra, Tarandeep S.; Olabarrieta, Maitane; Penko, Allison; Rafati, Yashar; Roelvink, Dano; van der Lugt, Marlies; Veeramony, Jay; Warner, John C.

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Year Published: 2021

The spatial-temporal relationship of blue-winged teal to domestic poultry: Movement state modeling of a highly mobile avian influenza host

 Migratory waterfowl facilitate long distance dispersal of zoonotic pathogens and are increasingly recognized as contributing to the geographic spread of avian influenza viruses (AIV). AIV are globally distributed and have the potential to produce highly contagious poultry disease, economically impact both large-scale and backyard poultry...

Humphreys, John M.; Douglas, David C.; Ramey, Andrew M.; Mullinax, Jennifer M.; Soos, Catherine; Link, Paul T.; Walther, Patrick; Prosser, Diann

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April 26, 2016

Computes estimates of survival and recovery rates for 2-age class band-recovery data.

August 12, 2015

Computes estimates of survival and capture probability for open capture-recapture models when sex is not allways known.

July 2, 2014

An R package to estimate nest abundance using a state-space superpopulation capture-recapture approach in which inference about detection proability is based on the age at first detection, as opposed to the sequence of re-detections in standard capture-recapture models.

OFR 2014-1003 frontcover
March 4, 2014





The HyDroDSS is designed to provide water managers with risk-based information for balancing water-supply needs and aquatic-habitat protection goals to mitigate potential effects of hydrologic drought.

January 29, 2014

Generates capture-history data for given s,theta,p,c.

USGS science for a changing world logo
July 16, 2013


The Stochastic Empirical Loading and Dilution Model (SELDM) is designed to transform complex scientific data into meaningful information about the risk of adverse effects of runoff on receiving waters, the potential need for mitigation measures, and the potential effectiveness of such management measures for reducing these risks.

June 7, 2013

Computes estimates of species richness using large scale data.

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

December 11, 2011

Computes survival-movement, capture and recovery probabilities from multi-strata capture-recapture-recovery data.

FHWA-HEP-09-004 2009 cover
November 25, 2010


The highway-runoff database (HRDB) was developed to serve as a data warehouse for current and future highway-runoff data sets. The database can be used by transportation agencies and researchers as a data warehouse to document information about a data set, monitoring site(s), highway-runoff data (including precipitation, runoff, and event mean concentrations).

USGS science for a changing world logo
April 13, 2010


The SWQDM database application was developed by the U.S. Geological Survey in cooperation with the Federal Highway Administration for use in the analysis of regional and national hydrologic data sets. The surface-water quality data miner (SWQDM) database application was developed to coordinate use of NWIS Web, NWiz, and the Kendall-Theil Robust Line analysis software.

February 16, 2010

A Program to Estimate Animal Abundance and Density using Spatially-Explicit Capture-Recapture

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Marcus G. Langseth departs Newport, Oregon
June 3, 2021

Marcus G. Langseth departs Newport, Oregon

Photo Contest Winner | June 2021 | Where We Work
Marcus G. Langseth departs Newport, Oregon (Yaquina Bay) for Cascadia Project OBS Deployment Leg

High-water mark monument installed in May 2021, and shows the peak for period of record was from Tropical Storm Irene
May 31, 2021

USGS Station ID 01075000 Pemigewasset River high-water mark monument

USGS station ID 01075000 Pemigewasset River at Woodstock, New Hampshire. The high-water mark monument was installed in May 2021, and shows the peak for the period of record at this gage was from Tropical Storm Irene. It still remains the highest peak to this day. This gage has reported peaks for 77 years.

Ashley Ryan and Jeff Kvech
May 20, 2021

Ashley Ryan and Jeff Kvech using ADCP for recon

Photo Contest Winner | June 2021 | USGS at Work
Ashley Ryan and Jeff Kvech using ADCP for recon of lower Anacostia River, 20210520

person standing using a remotely controlled acoustic doppler current profiler in a body of water
May 20, 2021

Remote control ADCP measurement

The Region 1, May 2021 "USGS at Work" Winner (by Aaron Stephens)

Scituate Reservoir, Rhode Island
May 17, 2021

Scituate Reservoir, Rhode Island

Scituate Reservoir on Plainfield Pike, Scituate, RI.

Photo taken on the eastern side of the reservoir, facing northwest. 

RappahannockRiver Cableway Sampling
May 11, 2021

Rappahannock River Cableway Sampling

The Region 1, May 2021 "Honorable Mention #1" Winner (by Chelsea Delsack)

Examples of multi-parameter probes and temperature and dissolved oxygen sensors used for 2018-19 monitoring program
May 5, 2021

Multi-parameter probes, temperature and dissolved oxygen sensors

(A) Examples of the multi-parameter water-quality probes used for continuous fixed-station monitoring, moving boat surveys, and vertical water-quality profiles. (B) Example of smaller temperature and dissolved oxygen sensors with and without a wiper unit.

Examples of monitoring buoys used for 2018-19 monitoring program
May 1, 2021

Examples of monitoring buoys

Examples of monitoring buoys deployed in (A) 2018 and (B) 2019 and (C) example of a bottom cage containing a sensor.

person checking a trap for salamanders
April 29, 2021

Technician Checking a Trap for Salamanders

The Region 1, May 2021 "Honorable Mention #2" Winner (by Jill Fleming)

Inside the tunnel of a storm drain
April 20, 2021

Laser Flow in Storm Drain at Hampton Coliseum

The Region 1, April 2021 "Honorable Mention #1" Winner (by Chelsea Delsack)

The Mousam River as viewed from a bridge in mid-April. There is little to no ice cover.
April 14, 2021

Mousam River at West Kennebunk, Maine

Hydrologic Technician Andy Cloutier visited USGS gaging station 01069500 on the Mousam River at West Kennebunk in mid-April. The visit was made to conduct a discharge measurement as the station was reporting the lowest discharge in the 57 year period of record. The photo shows the river looking downstream from the gaging station.

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Cessna 208B Grand Caravan in Flight
May 12, 2021

USGS Low-level Airplane Surveys Beginning Soon

Editor: In the public interest and in accordance with Federal Aviation Administration regulations, the USGS is announcing this low-level airborne project. Your assistance in informing the local communities is appreciated.

USGS scientist in winter clothing is inserting tool into groundwater well in the middle of a snowy field. A utility terrain vehi
April 30, 2021

The Maine SW/GW (Surface-Water/Groundwater) Networks Section has been busy this spring- confirming our equipment is working properly after the winter, making high flow measurements to confirm our stage-discharge relationships and preparing for upcoming summer projects. 

GEMSC Quarterly Newsletter Thumbnail - FY2021, Issue 2
April 30, 2021

Welcome to the second issue of our USGS Geology, Energy & Minerals Science Center (GEMSC or GEM) quarterly newsletter. The GEMSC has had a productive quarter, releasing 12 publications, 6 data releases, 2 software releases, and presenting at Southeast GSA, the AAPG Sustainability Symposium, and the 30th Global Methane Initiative Coal Subcommittee meetings.

Map of the glacial aquifer locations in the United States
April 27, 2021

New 3-dimensional models predict where high concentrations of arsenic and manganese are likely to occur in the glacial aquifer system, reports a new study from the U.S. Geological Survey National Water Quality Program. The glacial aquifer system, which underlies parts of 25 states across the northern U.S., supplies groundwater for about 30 million people.

water, sky, city, buildings, man, plaid, boat, trees, skyline
April 7, 2021

This issue of our Pennsylvania Water Science Center Newsletter highlights USGS data on the occurrence of PFAS contaminants in surface waters across the Commonwealth, a first-of-its-kind survey, in cooperation with the Pennsylvania Department of Environmental Protection. USGS identified likely causes for changing low-flow statistics for streams in the Delaware River Basin, and there's more.

Kent Falls State Park
April 6, 2021

A new U.S. Geological Survey study provides an updated, statewide estimate of high levels of naturally occurring arsenic and uranium in private well water across Connecticut.

USGS gage 01135150, Pope Brook near North Danville, Vermont
April 1, 2021

In this issue of the USGS New England WSC Newsletter, we spotlight recent field activities, our Hydrologic Interpretive Program, a new report about arsenic in groundwater, and research at the Sleepers River Research Watershed. I hope you enjoy the articles about some of the great work our folks are doing and exploring the links to this quarter’s publications. Thanks for making us part of your day!

Real-time streamflow in New England, March 31, 2021
March 31, 2021

Recent surface-water, groundwater, and precipitation data indicate that drought conditions may presently be developing in parts of New England.

Close up of hibernating bats in a Vermont cave
March 30, 2021

The risk is low that scientists could pass coronavirus to North American bats during winter research, according to a new study led by the U.S. Geological Survey. 

USGS Publications spread out on a table
March 30, 2021

List of data releases and publications from the New England Water Science Center released in the first quarter of 2021.

water, sky, city, buildings, man, plaid, boat, trees, skyline
March 18, 2021

USGS Pennsylvania Water Science Center in cooperation with Pennsylvania Department of Environmental Protection (PADEP) released a first-of-its-kind Per- and Polyfluorinated Alkyl Substances (PFAS) dataset.

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