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Pennsylvania Water Science Center

USGS Releases Products Documenting Effects of Hurricane Ida

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Updating Pennsylvania Streamgage Datums

USGS is updating streamgage datums to reflect elevations in North American Vertical Datum of 1988 (NAVD88).

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Nitrogen in the Chesapeake Bay Watershed - A Century of Change

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Water Quality of Domestic Wells in Marcellus Shale Region

New USGS study identifies factors affecting quality of groundwater used for domestic supply in north-central and north-east Pennsylvania

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USGS Collects High-Quality Water-Resources Data for Pennsylvania

Streamflow, groundwater levels, water quality, precipitation, water use, and other related data, both real time and historic

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Hydrologic Studies, Research, and Tools for Pennsylvania

Water availability, groundwater contamination, nutrient loading in streams, effects of land use on water quality, and other water-resource topics

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New Product Category: Web Tools

Data access, data analysis, data visualizations, digital repositories, and interactive maps.

Web Tools

Next Generation Water Observing System

Delaware River Basin pilot testing includes large-scale particle image velocimetry (LSPIV) in Philadelphia

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Pennsylvania Water Science Center

We work in cooperation with numerous federal, state, and local agencies to collect scientific data and conduct scientific studies of the source, quantity, quality, ecology, and use of Pennsylvania's water resources.

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Drought Watch Remains for 19 Counties, York County Moved to Drought Warning

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USGS Releases Products Documenting Effects of Hurricane Ida

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PFAS chemicals detected in many rivers and streams across Pennsylvania

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Publications

Characterization of peak streamflows and flooding in select areas of Pennsylvania from the remnants of Hurricane Ida, September 1–2, 2021

Pennsylvania experienced heavy rainfall on September 1 and 2, 2021, as the remnants of Hurricane Ida swept over parts of the State. Much of eastern and south-central Pennsylvania received 5 to 10 inches of rain, and most of the rainfall fell within little more than 6 hours. Southeastern Pennsylvania experienced widespread, substantial flooding, and the city of Philadelphia and surrounding areas we
Authors
Marla H. Stuckey, Matthew D. Conlon, Mitchell R. Weaver
By
Water Resources Mission Area, Pennsylvania Water Science Center

Societal benefits of floodplains in the Chesapeake Bay and Delaware River watersheds: Sediment, nutrient, and flood regulation ecosystem services

Floodplains provide critical ecosystem services to people by regulating floodwaters and retaining sediments and nutrients. Geospatial analyses, field data collection, and modeling were integrated to quantify a portfolio of services that floodplains provide to downstream communities within the Chesapeake Bay and Delaware River watersheds. The portfolio of services included floodplain sediment and n
Authors
Kristina G. Hopkins, Jacqueline Sage Welles, Emily J. Pindilli, Gregory B. Noe, Peter Claggett, Labeeb Ahmed, Marina Metes
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Water Resources Mission Area, Chesapeake Bay Activities, Pennsylvania Water Science Center, South Atlantic Water Science Center (SAWSC)

Land development and road salt usage drive long-term changes in major-ion chemistry of streamwater in six exurban and suburban watersheds, southeastern Pennsylvania, 1999-2019

In urbanized areas, the “freshwater salinization syndrome” (FSS), which pertains to long-term increases in concentrations of major ions and metals in fresh surface waters, has been attributed to road salt application. In addition to FSS, the water composition changes as an influx of sodium (Na+) in recharge may displace calcium (Ca2+), magnesium (Mg2+), potassium (K+), and trace metals by reverse
Authors
Marissa Lee Rossi, Peleg Kremer, Charles A. Cravotta, Krista E. Seng, Steven T. Goldsmith
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Water Resources Mission Area, Pennsylvania Water Science Center
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Collecting blanks for PFAS from freshly decontaminated equipment.

Hydrologic and Water Quality Studies of PFAS in Pennsylvania

USGS is working with federal, state, and local partners to monitor and evaluate perfluoroalkyl and polyfluoroalkyl substances (PFAS) in Pennsylvania's groundwater and surface waters. A recent study sampled tap water in Pennsylvania (and other states) and detected PFAS chemicals in some samples.
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Pennsylvania Water Science Center
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Hydrologic and Water Quality Studies of PFAS in Pennsylvania

USGS is working with federal, state, and local partners to monitor and evaluate perfluoroalkyl and polyfluoroalkyl substances (PFAS) in Pennsylvania's groundwater and surface waters. A recent study sampled tap water in Pennsylvania (and other states) and detected PFAS chemicals in some samples.
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Photograph of road cut showing fractured sedimentary rocks

Contaminants in Groundwater near Superfund sites in Pennsylvania

USGS has investigated groundwater flow and contaminant transport in the vicinity of Superfund and other hazardous-waste sites in Pennsylvania, in cooperation with EPA. Additional cooperative support has been provided by the U.S. Department of Defense, National Park Service, Pennsylvania Department of Environmental Protection, Philadelphia, Bucks, Chester, and Montgomery, and local government...
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Pennsylvania Water Science Center
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Contaminants in Groundwater near Superfund sites in Pennsylvania

USGS has investigated groundwater flow and contaminant transport in the vicinity of Superfund and other hazardous-waste sites in Pennsylvania, in cooperation with EPA. Additional cooperative support has been provided by the U.S. Department of Defense, National Park Service, Pennsylvania Department of Environmental Protection, Philadelphia, Bucks, Chester, and Montgomery, and local government...
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Groundwater Recorder on a well in New Jersey

Groundwater Monitoring in Pennsylvania

Groundwater Monitoring and Tools for Pennsylvania
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Pennsylvania Water Science Center
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Groundwater Monitoring in Pennsylvania

Groundwater Monitoring and Tools for Pennsylvania
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