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Publications

Nitrogen in the Chesapeake Bay Watershed - A Century of Change, 1950–2050

National Award for Superior Communication Product

News Event

Domestic Well Water Quality in Marcellus Shale Region

Factors Affecting Groundwater Quality Used for Domestic Supply in Marcellus Shale Region of North-Central and North-East Pennsylvania

Journal Article

Geohydrologic and water-quality characterization of a fractured-bedrock test hole in an area of Marcellus Shale gas development, Sullivan County, Pennsylvania

Report at Pennsylvania Geological Survey

Publications are the cornerstone of the Pennsylvania Water Science Center’s dissemination of scientific data and conclusions. 

Publications Warehouse

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To access the full, searchable catalog of USGS publications, visit the USGS Publications Warehouse.

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Filter Total Items: 968

Satellite precipitation bias estimation and correction using in situ observations and climatology isohyets for the MENA region Satellite precipitation bias estimation and correction using in situ observations and climatology isohyets for the MENA region

The availability of reliable gridded precipitation datasets is limited around the world, especially in arid regions. In this study, we utilized observations from satellite-based precipitation data and in situ rain gauge observations to determine a suitable precipitation dataset in the Middle East & North Africa (MENA) region. First, we evaluated seven different precipitation products...
Authors
Stefanie Kagone, Naga Manohar Velpuri, Kul Bikram Khand, Gabriel B. Senay, Michael R. Van der Valk, Daniel J. Goode, Salam Abu Hantash, Thair M. Al-Momani, Nanor Momejian, Jack R. Eggleston
By
Core Science Systems Mission Area, Water Resources Mission Area, Earth Resources Observation and Science (EROS) Center , Pennsylvania Water Science Center, International Programs

Per- and polyfluorinated alkyl substances (PFAS) in Pennsylvania surface waters: A statewide assessment, associated sources, and land-use relations Per- and polyfluorinated alkyl substances (PFAS) in Pennsylvania surface waters: A statewide assessment, associated sources, and land-use relations

The objectives of this study are to identify per- and polyfluoroalkyl substances (PFAS) in Pennsylvania surface waters, corresponding associations with potential sources of PFAS contamination (PSOC) and other parameters, and compare raw surface water concentrations to human and ecological benchmarks. Surface water samples from 161 streams were collected in September 2019 and were...
Authors
Sara E. Breitmeyer, Amy Williams, Joseph W. Duris, Lee W. Eicholtz, Dustin R. Shull, Timothy A. Wertz, Emily Woodward
By
Water Resources Mission Area, California Water Science Center, Pennsylvania Water Science Center, Upper Midwest Environmental Sciences Center, Upper Midwest Water Science Center

Salinity and total dissolved solids measurements for natural waters: An overview and a new salinity method based on specific conductance and water type Salinity and total dissolved solids measurements for natural waters: An overview and a new salinity method based on specific conductance and water type

The total concentration of dissolved constituents in water is routinely quantified by measurements of salinity or total dissolved solids (TDS). However, salinity and TDS are operationally defined by their analytical methods and are not equivalent for most waters. Furthermore, multiple methods are available to determine salinity and TDS, and these methods have inherent differences. TDS is...
Authors
R. Blaine McCleskey, Charles A. Cravotta, Matthew P. Miller, Fred D. Tillman, Paul E. Stackelberg, Katherine J. Knierim, Daniel Wise
By
Water Resources Mission Area, National Water Quality Program, Arizona Water Science Center, Lower Mississippi-Gulf Water Science Center, Oregon Water Science Center, Pennsylvania Water Science Center

Estimated reduction of nitrogen in streams of the Chesapeake Bay in areas with agricultural conservation practices Estimated reduction of nitrogen in streams of the Chesapeake Bay in areas with agricultural conservation practices

Spatial data provided by the U.S. Department of Agriculture National Resource Conservation Service representing implementation at the field-level for a selection of agricultural conservation practices were incorporated within a spatially referenced regression model to estimate their effects on nitrogen loads in streams in the Chesapeake Bay watershed. Conservation practices classified as...
Authors
Andrew J. Sekellick, Scott Ator, Olivia Devereux, Jennifer L. Keisman
By
Chesapeake Bay Activities, Maryland-Delaware-D.C. Water Science Center, Pennsylvania Water Science Center

A multi-level assessment of biological effects associated with mercury concentrations in smallmouth bass, Micropterus dolomieu A multi-level assessment of biological effects associated with mercury concentrations in smallmouth bass, Micropterus dolomieu

Total mercury (THg) was measured in muscle (fillet) and liver tissue of adult smallmouth bass Micropterus dolomieu collected at multiple sites in the Potomac and Susquehanna River drainages within the Chesapeake Bay watershed. Smallmouth bass in these drainages have experienced episodic mortality events, a high prevalence of skin lesions and reproductive endocrine disruption (intersex or
Authors
Vicki S. Blazer, Heather L. Walsh, Adam Sperry, Brenna Raines, James Willacker, Collin A. Eagles-Smith
By
Ecosystems Mission Area, Chesapeake Bay Activities, Eastern Ecological Science Center, Forest and Rangeland Ecosystem Science Center, Pennsylvania Water Science Center

Tracking status and trends in seven key indicators of stream health in the Chesapeake Bay watershed Tracking status and trends in seven key indicators of stream health in the Chesapeake Bay watershed

“The Bay Connects us, the Bay reflects us” writes Tom Horton in the book “Turning the Tide—Saving the Chesapeake Bay”. The Chesapeake Bay watershed contains the largest estuary in the United States. The watershed stretches north to Cooperstown, New York, south to Lynchburg and Virginia Beach, Virginia, west to Pendleton County, West Virginia, and east to Seaford, Delaware, and Scranton
Authors
Samuel H. Austin, Matthew J. Cashman, John W. Clune, James E. Colgin, Rosemary M. Fanelli, Kevin P. Krause, Emily H. Majcher, Kelly O. Maloney, Christopher A. Mason, Douglas L. Moyer, Tammy M. Zimmerman
By
Ecosystems Mission Area, Water Resources Mission Area, Environmental Health Program, Chesapeake Bay Activities, Eastern Ecological Science Center, Maryland-Delaware-D.C. Water Science Center, Pennsylvania Water Science Center, South Atlantic Water Science Center (SAWSC), Virginia and West Virginia Water Science Center

Analysis of the United States documented unplugged orphaned oil and gas well dataset Analysis of the United States documented unplugged orphaned oil and gas well dataset

In coordination with the U.S. Department of the Interior (DOI) and in response to the Bipartisan Infrastructure Law (BIL), the U.S. Geological Survey (USGS) produced a documented unplugged orphaned oil and gas well dataset (called the DOW dataset hereafter) that contains the location and status of these wells nationwide as of 2022. The DOW dataset includes 117,672 wells across 27 states...
Authors
Matthew D. Merrill, Claire A. Grove, Nicholas J. Gianoutsos, Philip A. Freeman
By
Energy Resources Program, Central Energy Resources Science Center, Geology, Energy & Minerals Science Center, Geology, Minerals, Energy, and Geophysics Science Center, Pennsylvania Water Science Center

Gross alpha-particle activity and high 226Ra concentrations do not correspond with high 210Po in the Atlantic and Gulf Coastal Plain aquifers of the United States Gross alpha-particle activity and high 226Ra concentrations do not correspond with high 210Po in the Atlantic and Gulf Coastal Plain aquifers of the United States

210Po, which is of human-health concern based on lifetime ingestion cancer risk, is indirectly regulated in drinking water through the U.S. Environmental Protection Agency’s gross alpha-particle activity (GAPA) maximum contaminant level of 15 pCi/L (picocuries per liter). This regulation requires independent measurement of 226Ra for samples exceeding the GAPA screening level of 5 pCi/L...
Authors
Zoltan Szabo, Charles A. Cravotta, Paul E. Stackelberg, Kenneth Belitz
By
Water Resources Mission Area, New England Water Science Center, New Jersey Water Science Center, Pennsylvania Water Science Center

Water-quality trends in the Delaware River Basin calculated using multisource data and two methods for trend periods ending in 2018 Water-quality trends in the Delaware River Basin calculated using multisource data and two methods for trend periods ending in 2018

Many organizations in the Delaware River Basin (DRB) monitor surface-water quality for regulatory, scientific, and decision-making purposes. In support of these purposes, over 260,000 water-quality records provided by 8 different organizations were compiled, screened, and used to generate water-quality trends in the DRB. These trends, for periods of record that end in 2018, were...
Authors
Megan E. Shoda, Jennifer C. Murphy
By
Ohio-Kentucky-Indiana Water Science Center, Pennsylvania Water Science Center

PHREEQ-N-AMDTreat+REYs water-quality modeling tools to evaluate acid mine drainage treatment strategies for recovery of rare-earth elements PHREEQ-N-AMDTreat+REYs water-quality modeling tools to evaluate acid mine drainage treatment strategies for recovery of rare-earth elements

The PHREEQ-N-AMDTreat+REYs water-quality modeling tools have the fundamental capability to simulate aqueous chemical reactions and predict the formation of metal-rich solids during the treatment of acid mine drainage (AMD). These new user-friendly, publicly available tools were expanded from the PHREEQ-N-AMDTreat tools to include the precipitation of rare-earth elements plus yttrium...
Authors
Charles A. Cravotta
By
Water Resources Mission Area, Pennsylvania Water Science Center

Determination and prediction of rare earth element eeochemical associations in acid mine drainage treatment wastes Determination and prediction of rare earth element eeochemical associations in acid mine drainage treatment wastes

Acid mine drainage (AMD) has been proposed by various researchers as a novel source of rare earth elements (REE), a group of elements that include critical metals for clean energy and modern technologies. REE tend to be sequestered in the Fe-Al-Mn-rich solids produced during the treatment of AMD. These solids are typically managed as waste, but could be a low-cost, readily available REE...
Authors
B.C. Hedin, Charles A. Cravotta, M.Y. Stuckman, C.L. Lopano, R.C. Capo, R.S. Hedin
By
Water Resources Mission Area, Pennsylvania Water Science Center

Corrigendum: Associations between cyanobacteria and indices of secondary production in the western basin of Lake Erie Corrigendum: Associations between cyanobacteria and indices of secondary production in the western basin of Lake Erie

In the last year, we became aware that data used in our above-referenced manuscript from 2018 published in Limnology and Oceanography contained significant errors. In the 2018 manuscript, we found that indices of secondary production were negatively correlated to indices of cyanobacterial abundance and toxicity. Unfortunately, one of our indices of cyanobacterial abundance (biovolume)...
Authors
James H. Larson, Mary Anne Evans, Robert J Kennedy, Sean Bailey, Keith A. Loftin, Zachary R. Laughrey, Robin A. Femmer, Jeff S. Schaeffer, William B. Richardson, T.T. Wynne, John C. Nelson, Joseph W. Duris
By
Ecosystems Mission Area, Water Resources Mission Area, Central Plains Water Science Center, Great Lakes Science Center, Pennsylvania Water Science Center, Upper Midwest Environmental Sciences Center
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