Publications

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

National Award for Superior Communication Product

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

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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September 1, 2020

Groundwater quality in relation to drinking water health standards and hydrogeologic and geochemical characteristics for 47 domestic wells in Potter County, Pennsylvania, 2017

As part of a regional effort to characterize groundwater in rural areas of Pennsylvania, water samples from 47 domestic wells in Potter County were collected from May through September 2017. The sampled wells had depths ranging from 33 to 600 feet in sandstone, shale, or siltstone aquifers. Groundwater samples were analyzed for physicochemical properties that could be evaluated in relation to drin

Authors

Daniel G. Galeone, Charles A. Cravotta, Dennis W. Risser

Water Resources Mission Area, Pennsylvania Water Science Center

July 30, 2020

Estimating streamflow and base flow within the nontidal Chesapeake Bay riverine system

Daily mean streamflow was estimated for all the nontidal parts of the Chesapeake Bay riverine system with the Unit Flows in Networks of Channels computer application using measured streamflow at the most downstream gage of selected rivers. The streamflows estimated by the Unit Flows in Networks of Channels computer application were aggregated at the 12-digit Hydrologic Unit Code level, after which

Authors

Patrick C. Buffington, Paul D. Capel

Water Resources Mission Area, Chesapeake Bay Activities, Pennsylvania Water Science Center

July 27, 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 in 2017. The samples were evaluated for a wide range

Authors

John W. Clune, Charles A. Cravotta

Water Resources Mission Area, Pennsylvania Water Science Center

July 16, 2020

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

Ecosystems Mission Area, Eastern Ecological Science Center, Chesapeake Bay Activities, Pennsylvania Water Science Center

June 21, 2020

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

Climate Research and Development Program, Chesapeake Bay Activities, Florence Bascom Geoscience Center, Pennsylvania Water Science Center

June 5, 2020

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

Water Resources Mission Area, National Water Quality Program, New Jersey Water Science Center, Pennsylvania Water Science Center

May 11, 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 concentration in drinking water for preventing tooth decay) (8

Authors

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

Water Resources Mission Area, California Water Science Center, Colorado Water Science Center, New England Water Science Center, Pennsylvania Water Science Center

April 27, 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 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,

Water Resources Mission Area, Pennsylvania Water Science Center

April 20, 2020

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

Water Resources Mission Area, Colorado Water Science Center, National Innovation Center, Pennsylvania Water Science Center

April 14, 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 Chesapeake Bay and several stream reaches are on the P

Authors

Michael J. Langland, Joseph W. Duris, Tammy M. Zimmerman, Jeffrey J. Chaplin

Water Resources Mission Area, Chesapeake Bay Activities, Pennsylvania Water Science Center

March 25, 2020

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

Ecosystems Mission Area, Eastern Ecological Science Center, Pennsylvania Water Science Center

March 17, 2020

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

Water Resources Mission Area, Ohio-Kentucky-Indiana Water Science Center, Pennsylvania Water Science Center