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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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First-of-its-Kind Survey of PFAS in Pennsylvania Surface Waters

In collaboration with the Pennsylvania Department of Environmental Protection

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USGS Responding to High Water Caused By Ida Across Multiple States

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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 Tools, Studies, and Research in 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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How We Monitor Stream Temperature in the Delaware River Basin

New data visualization explores patterns in stream temperature observations, and how spatial variability and data gaps add comlexity

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Next Generation Water Observing System

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

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USGS Evaluates Groundwater Quality in Pennsylvania

Baseline studies of the quality of well water from shallow aquifers in counties where shale-gas development has occurred or may occur in the future

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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.

Coronavirus (COVID-19) Update

We are operating at maximum telework and continue to maintain mission essential and critical functions. We have implemented new safety and fieldwork processes to to ensure the safety of our employees and communities while following all guidance from the White House, Department of the Interior, Centers for Disease Control and Prevention, and state and local authorities.

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Pennsylvania Waters - Winter 2021–22 - Issue 6

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Water Quality of Domestic Wells in Marcellus Shale Region

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Pennsylvania Waters - Fall 2021 - Issue 5

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Characterization of ambient groundwater quality within a statewide, fixed-station monitoring network in Pennsylvania, 2015–19

Pennsylvania leads the Nation in the number of individuals that use groundwater for private domestic water supply; more than 3 million rural and suburban Pennsylvania residents rely on private domestic supplies for drinking water. These supplies are not regulated nor routinely monitored; thus relevant groundwater-quality information is not widely available. The U.S. Geological Survey (USGS), in co
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Water Resources, Pennsylvania Water Science Center

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

Factors affecting groundwater quality used for domestic supply within the Marcellus Shale footprint in north-central and north-east Pennsylvania are identified using a combination of spatial, statistical, and geochemical modeling. Untreated groundwater, sampled during 2011–2017 from 472 domestic wells within the study area, exhibited wide ranges in pH (4.5–9.3), total dissolved solids (TDS, 22–196
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Water Resources, Pennsylvania Water Science Center

Nitrogen in the Chesapeake Bay watershed—A century of change, 1950–2050

ForewordSustaining the quality of the Nation’s water resources and the health of our diverse ecosystems depends on the availability of sound water-resources data and information to develop effective, science-based policies. Effective management of water resources also brings more certainty and efficiency to important economic sectors. Taken together, these actions lead to immediate and long-term e
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Water Resources, Chesapeake Bay Activities, Maryland-Delaware-D.C. Water Science Center, New York Water Science Center, Pennsylvania Water Science Center, South Atlantic Water Science Center (SAWSC), Utah Water Science Center, Virginia and West Virginia Water Science Center
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Image of well that is part of water quality monitoring network, Chester County, Pennsylvania

Pennsylvania Groundwater Quality Monitoring Network

USGS Pennsylvania Water Science Center, in cooperation with the Pennsylvania Department of Environmental Protection, samples 28 wells biannually to monitor ambient groundwater quality conditions throughout Pennsylvania.
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Water Resources, Pennsylvania Water Science Center
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Pennsylvania Groundwater Quality Monitoring Network

USGS Pennsylvania Water Science Center, in cooperation with the Pennsylvania Department of Environmental Protection, samples 28 wells biannually to monitor ambient groundwater quality conditions throughout Pennsylvania.
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Farms, forests and rolling hills in Lycoming County, PA

Regional Synthesis of Groundwater Quality in Domestic Supply Wells in Northeast and North Central Pennsylvania

USGS is synthesizing groundwater quality measurements in wells to characterize regional chemical characteristics of aquifers used for domestic supply in northeast and north central Pennsylvania.
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Pennsylvania Water Science Center
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Regional Synthesis of Groundwater Quality in Domestic Supply Wells in Northeast and North Central Pennsylvania

USGS is synthesizing groundwater quality measurements in wells to characterize regional chemical characteristics of aquifers used for domestic supply in northeast and north central Pennsylvania.
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Chesapeake Bay at Edgewater, MD

Summarizing Scientific Findings for Common Stakeholder Questions to Inform Nutrient and Sediment Management Activities in the Chesapeake Bay Watershed

Issue: The Chesapeake Bay Program (CBP) partnership is striving to improve water-quality conditions in the Bay by using a variety of management strategies to reduce nutrient and sediment loads. The partnership uses monitoring results and modeling tools to implement management strategies, relying on the scientific community to synthesize existing information and direct new research to address...
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Chesapeake Bay Activities, Maryland-Delaware-D.C. Water Science Center, Pennsylvania Water Science Center, Virginia and West Virginia Water Science Center
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Summarizing Scientific Findings for Common Stakeholder Questions to Inform Nutrient and Sediment Management Activities in the Chesapeake Bay Watershed

Issue: The Chesapeake Bay Program (CBP) partnership is striving to improve water-quality conditions in the Bay by using a variety of management strategies to reduce nutrient and sediment loads. The partnership uses monitoring results and modeling tools to implement management strategies, relying on the scientific community to synthesize existing information and direct new research to address...
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