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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. 

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Aquatic invasive species in the Chesapeake Bay drainage—Research-based needs and priorities of U.S. Geological Survey partners and collaborators

Executive SummaryThe U.S. Geological Survey (USGS) is revising the Chesapeake Bay-based science plan to align it with recent U.S. Department of Interior and USGS science priorities that include, as stated in the plan, providing “an integrated understanding of the factors affecting fish habitat, fish health, and landscape conditions” in Chesapeake Bay and its watershed. A report of partner agencies
Authors
Christine L. Densmore
By
Ecosystems Mission Area, Eastern Ecological Science Center, Chesapeake Bay Activities, Pennsylvania Water Science Center

Sediment dynamics and implications for management: State of the science from long‐term research in the Chesapeake Bay watershed, USA

This review aims to synthesize the current knowledge of sediment dynamics using insights from long‐term research conducted in the watershed draining to the Chesapeake Bay, the largest estuary in the U.S., to inform management actions to restore the estuary and its watershed. The sediment dynamics of the Chesapeake are typical of many impaired watersheds and estuaries around the world, and this syn
Authors
Gregory Noe, Matthew Joseph Cashman, Katherine Skalak, Allen C. Gellis, Kristina G. Hopkins, Doug L. Moyer, James S. Webber, Adam Benthem, Kelly O. Maloney, John Brakebill, Andrew Sekellick, Michael J. Langland, Qian Zhang, Gary W. Shenk, Jennifer L. D. Keisman, Cliff R. Hupp
By
Climate Research and Development Program, Chesapeake Bay Activities, Florence Bascom Geoscience Center, Pennsylvania Water Science Center

Occurrence and geochemistry of lead-210 and polonium-210 radionuclides in public-drinking-water supplies from principal aquifers of the United States

On the basis of lifetime cancer risks, lead-210 (210Pb) and polonium-210 (210Po) ≥ 1.0 and 0.7 pCi/L (picocuries per liter), respectively, in drinking-water supplies may pose human-health concerns. 210Pb and 210Po were detected at concentrations greater than these thresholds at 3.7 and 1.5%, respectively, of filtered untreated groundwater samples from 1263 public-supply wells in 19 principal aquif
Authors
Zoltan Szabo, Paul Stackelberg, Charles A. Cravotta
By
Water Resources Mission Area, National Water Quality Program, New Jersey Water Science Center, Pennsylvania Water Science Center

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 concentration in drinking water for preventing tooth decay) (8
Authors
Peter B. McMahon, Craig J. Brown, Tyler D. Johnson, Kenneth Belitz, Bruce D. Lindsey
By
Water Resources Mission Area, California Water Science Center, Colorado Water Science Center, New England Water Science Center, Pennsylvania Water Science Center

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 supervision and direction of the River Master. The D
Authors
Vincent J. DiFrenna, William J. Andrews, Kendra L. Russell, J. Michael Norris, Robert R. Mason,
By
Water Resources Mission Area, Pennsylvania Water Science Center

Near-field remote sensing of surface velocity and river discharge using radars and the probability concept at 10 USGS streamgages

Near-field remote sensing of surface velocity and river discharge (discharge) were measured using coherent, continuous wave Doppler and pulsed radars. Traditional streamgaging requires sensors be deployed in the water column; however, near-field remote sensing has the potential to transform streamgaging operations through non-contact methods in the U.S. Geological Survey (USGS) and other agencies
Authors
John Fulton, Chris A. Mason, Jack R. Eggleston, Matthew J. Nicotra, C.-L. Chiu, Mark F. Henneberg, Heather Best, Jay Cederberg, Stephen R. Holnbeck, R. Russell Lotspeich, Christopher Laveau, Tommaso Moramarco, Mark E. Jones, Jonathan J Gourley, Danny Wasielewski
By
Water Resources Mission Area, Colorado Water Science Center, National Innovation Center, Pennsylvania Water Science Center

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 Chesapeake Bay and several stream reaches are on the P
Authors
Michael J. Langland, Joseph W. Duris, Tammy M. Zimmerman, Jeffrey J. Chaplin
By
Water Resources Mission Area, Chesapeake Bay Activities, Pennsylvania Water Science Center

Assessment of microscopic pathology in fishes collected at sites impacted by wood tar in Pennsylvania

In an effort to determine whether fish populations in an area affected by wood tar waste exhibited health effects, fish were collected and analyzed with histopathology. Multiple species, including Mottled Sculpin (Cottus bairdii), Creek Chub (Semotilus atromaculatus), White Sucker (Catostumus commersonii), Redside Dace (Clinostomus elongatus), Common Shiner (Luxilus cornutus), and Western Blacknos
Authors
Heather L. Walsh, Vicki S. Blazer, Patricia M. Mazik, Adam J. Sperry, Diana Pavlick
By
Ecosystems Mission Area, Eastern Ecological Science Center, Pennsylvania Water Science Center

A historical look at changing water quality in the Delaware River basin

In 2019 the U.S. Geological Survey (USGS) launched a pilot regional Integrated Water Availability Assessment (IWAA) in the Delaware River Basin (fig. 1). IWAA is intended to explore, test, and refine systems and processes for assessing water availability for human and ecological uses and understanding their underlying controls. Water quality plays an important role in supporting ecological health
Authors
Jennifer C. Murphy, Megan E. Shoda
By
Water Resources Mission Area, Ohio-Kentucky-Indiana Water Science Center, Pennsylvania Water Science Center

Pooling resources across organizations — Multisource water-quality data for the Delaware River Basin

The U.S. Geological Survey (USGS) recently launched a pilot Integrated Water Availability Assessment (IWAA) in the Delaware River Basin to explore, test, and refine systems and processes for assessing water availability for human and ecological uses based on water monitoring data. Water-quality monitoring provides citizens, managers, and scientists with the information needed to evaluate the healt
Authors
Jennifer C. Murphy, Megan E. Shoda
By
Water Resources Mission Area, New Jersey Water Science Center, Pennsylvania Water Science Center

Causal effect of impervious cover on annual flood magnitude for the United States

Despite consensus that impervious surfaces increase flooding, the magnitude of the increase remains uncertain. This uncertainty largely stems from the challenge of isolating the effect of changes in impervious cover separate from other factors that also affect flooding. To control for these factors, prior study designs rely on either temporal or spatial variation in impervious cover. We leverage b
Authors
Annalise G. Blum, Paul J. Ferraro, Stacey A. Archfield, Karen R. Ryberg
By
Water Resources Mission Area, Pennsylvania Water Science Center

Assessment of bridge scour countermeasures at selected bridges in the United States, 2014–18

Erosion of the streambed, known also as scour, around pier 3 of the New York State Thruway bridge over Schoharie Creek caused the pier to fail, which ultimately resulted in bridge failure during the flooding event of April 5, 1987. The Federal Highway Administration (FHWA) responded to the need for better guidance on the evaluation of bridge scour and the selection and installation of scour counte
Authors
Thomas P. Suro, Richard J. Huizinga, Ryan L. Fosness, Taylor Dudunake
By
Water Resources Mission Area, Idaho Water Science Center, New Jersey Water Science Center, Pennsylvania Water Science Center