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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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Filter Total Items: 937

Groundwater withdrawals and regional flow paths at and near Willow Grove and Warminster, Pennsylvania—Data compilation and preliminary simulations for conditions in 1999, 2010, 2013, 2016, and 2017

In 2014, groundwater samples from residential and public supply wells in the vicinity of two former U.S. Navy bases at Willow Grove and Warminster, and an active Air National Guard Station at Horsham, Bucks and Montgomery Counties, Pennsylvania, were found to have concentrations of perfluorooctanoic acid (PFOA) and perfluorooctane sulfonate (PFOS), which are per- and polyfluoroalkyl substances (PF
Authors
Daniel J. Goode, Lisa A. Senior
By
Water Resources Mission Area, Pennsylvania Water Science Center

Shale gas development has limited effects on stream biology and geochemistry in a gradient-based, multiparameter study in Pennsylvania

The number of horizontally drilled shale oil and gas wells in the United States has increased from nearly 28,000 in 2007 to nearly 127,000 in 2017, and research has suggested the potential for the development of shale resources to affect nearby stream ecosystems. However, the ability to generalize current studies is limited by the small geographic scope as well as limited breadth and integration o

Authors
Adam Mumford, Kelly O. Maloney, Denise M. Akob, Sarah Nettemann, Arianne Proctor, Jason Ditty, Luke Ulsamer, Josh Lookenbill, Isabelle M. Cozzarelli
By
Water Resources Mission Area, Pennsylvania Water Science Center, Reston Biogeochemical Processes in Groundwater Laboratory, Reston Microbiology Laboratory

Identification of management thresholds of urban development in support of aquatic biodiversity conservation

Urbanization degrades stream ecosystems and causes loss of bodiversity. Using benthic macroinvertebrates as a surragate for overall aquatic diversity, we conducted a series of analytical approaches to derive management thresholds of urban development designed to link ecological responses to the primary management goal of protecting aquatic diversity in streams within the Delaware Water Gap Nationa
Authors
Craig D. Snyder, John A. Young
By
Ecosystems Mission Area, Eastern Ecological Science Center, Pennsylvania Water Science Center

Multi-region assessment of pharmaceutical exposures and predicted effects in USA wadeable urban-gradient streams

Human-use pharmaceuticals in urban streams link aquatic-ecosystem health to human health. Pharmaceutical mixtures have been widely reported in larger streams due to historical emphasis on wastewater-treatment plant (WWTP) sources, with limited investigation of pharmaceutical exposures and potential effects in smaller headwater streams. In 2014–2017, the United States Geological Survey measured 111
Authors
Paul M. Bradley, Celeste A. Journey, Daniel T. Button, Daren Carlisle, B. J. Huffman, Sharon L. Qi, Kristin M. Romanok, Peter C. Van Metre
By
Water Resources Mission Area, Contaminant Biology, Environmental Health Program, Toxic Substances Hydrology, Kansas Water Science Center, New Jersey Water Science Center, Ohio-Kentucky-Indiana Water Science Center, Oklahoma-Texas Water Science Center, Oregon Water Science Center, Pennsylvania Water Science Center, South Atlantic Water Science Center (SAWSC)

Seasonal drivers of chemical and hydrological patterns in roadside infiltration-based green infrastructure

Infiltration-based green infrastructure has become a popular means of reducing stormwater hazards in urban areas. However, the long-term effects of green infrastructure on the geochemistry of roadside environments are poorly defined, particularly given the considerable roadside legacy metal contamination from historic industrial activity and vehicle emissions (e.g., Pb). Most current research on g
Authors
Angela R. Mullins, Daniel J Bain, Erin Pfeil McCullough, Kristina G. Hopkins, S. Lavin, Erin Copeland
By
Water Resources Mission Area, Pennsylvania Water Science Center, South Atlantic Water Science Center (SAWSC)

A comparison of hydrocarbon-related landscape disturbance patterns along the New York-Pennsylvania border, 2004–2013

Executive SummaryThe New York-Pennsylvania area has a long history of hydrocarbon extraction, and the addition of shale gas extraction methods contributes to landscape disturbance borne by previously developed oil and non-shale gas resources. The main unconventional extraction method used to extract shale gas from the Marcellus Shale located in New York and Pennsylvania is hydraulic fracturing, or
Authors
Coral M. Roig-Silva, Lesley E. Milheim, E. Terrence Slonecker, Siddiq Kalaly, Joseph Chestnut
By
Chesapeake Bay Activities, Lower Mississippi-Gulf Water Science Center, Pennsylvania Water Science Center

Report of the River Master of the Delaware River for the period December 1, 2009–November 30, 2010

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
Kendra L. Russell, Darwin Ockerman, Bruce E. Krejmas, Gary N. Paulachok, Robert R. Mason,
By
Water Resources Mission Area, Pennsylvania Water Science Center, Oklahoma-Texas Water Science Center

Response of nitrogen loading to the Chesapeake Bay to source reduction and land use change scenarios: A SPARROW‐informed analysis

In response to concerns regarding the health of streams and receiving waters, the United States Environmental Protection Agency established a total maximum daily load for nitrogen in the Chesapeake Bay watershed for which practices must be in place by 2025 resulting in an expected 25% reduction in load from 2009 levels. The response of total nitrogen (TN) loads delivered to the Bay to nine source
Authors
Matthew P. Miller, Paul D. Capel, Ana M. Garcia, Scott W. Ator
By
Water Resources Mission Area, Chesapeake Bay Activities, Maryland-Delaware-D.C. Water Science Center, Pennsylvania Water Science Center

Baseline environmental monitoring of groundwater, surface water, and soil at the Ammonium Perchlorate Rocket Motor Destruction Facility at the Letterkenny Army Depot, Chambersburg, Pennsylvania, 2016

Letterkenny Army Depot in Chambersburg, Pennsylvania, built an Ammonium Perchlorate Rocket Motor Destruction (ARMD) facility in 2016. The ARMD Facility was designed to centralize rocket motor destruction and contain or capture all waste during the destruction process. Ideally, there would be no contaminant transport to air, soil, or water from the facility, but the Code of Federal Regulations requ

Authors
Daniel G. Galeone
By
Water Resources Mission Area, Pennsylvania Water Science Center

Real-time assessments of water quality—A nowcast for Escherichia coli and cyanobacterial toxins

Threats to our recreational and drinking waters include disease-causing (pathogenic) organisms from fecal contamination and toxins produced by some species of cyanobacteria (cyanotoxins) that can cause acute and (or) chronic illnesses. Because traditional laboratory methods for detecting these threats take too long for prompt public health protection, tools for real-time assessments are needed to
Authors
Donna S. Francy, Amie M.G. Brady, Tammy M. Zimmerman
By
Water Resources Mission Area, Ohio-Kentucky-Indiana Water Science Center, Pennsylvania Water Science Center, Ohio Water Microbiology Laboratory

Tritium as an indicator of modern, mixed, and premodern groundwater age

Categorical classification of groundwater age is often used for the assessment and understanding of groundwater resources. This report presents a tritium-based age classification system for the conterminous United States based on tritium (3H) thresholds that vary in space and time: modern (recharged in 1953 or later), if the measured value is larger than an upper threshold; premodern (recharged pr
Authors
Bruce D. Lindsey, Bryant C. Jurgens, Kenneth Belitz
By
Water Resources Mission Area, Pennsylvania Water Science Center, California Water Science Center, New England Water Science Center

Drinking water quality in the glacial aquifer system, northern USA

Groundwater supplies 50% of drinking water worldwide, but compromised water quality from anthropogenic and geogenic contaminants can limit usage of groundwater as a drinking water source. Groundwater quality in the glacial aquifer system, USA (GLAC), is presented in the context of a hydrogeologic framework that divides the study area into 17 hydrogeologic terranes. Results are reported at aquifer-
Authors
Melinda L. Erickson, Richard M. Yager, Leon J. Kauffman, John T. Wilson
By
Water Resources Mission Area, New Jersey Water Science Center, New York Water Science Center, Ohio-Kentucky-Indiana Water Science Center, Pennsylvania Water Science Center, Upper Midwest Environmental Sciences Center, Upper Midwest Water Science Center