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

National Award for Superior Communication Product

News Event

Updating Pennsylvania Streamgage Datums

Over the next year, streamgage datums will be updated to reflect elevations in North American Vertical Datum of 1988 (NAVD88).

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Water Quality of Domestic Wells in Marcellus Region

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

Center News

USGS Upgrades StreamStats for Pennsylvania

More accurate basin delineations and basin characteristics, and improved estimates of streamflow are now available for any stream location in PA.

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Pennsylvania Waters

Our Center newsletter highlights recent happenings, new projects and publications, and more related to Pennsylvania's water resources.

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Flights Above Pennsylvania to Map Geology

USGS low-level airplane surveys beginning mid-August 2022

News Release

News from USGS about Pennsylvania's water resources and related science

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Groundwater Quality in the Northern Atlantic Coastal Plain Aquifer System

Groundwater Quality in the Northern Atlantic Coastal Plain Aquifer System

A regional assessment of untreated groundwater in the Northern Atlantic Coastal Plain aquifer system in the eastern United States is now available...

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Groundwater Quality in Eastern U.S.

Groundwater Quality in Eastern U.S.

A regional assessment of untreated groundwater in the combined Valley and Ridge and Piedmont and Blue Ridge aquifers in the eastern United States is...

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New study reveals state of Juniata River watershed headwaters

New study reveals state of Juniata River watershed headwaters

A new study from the USGS assesses water quality data for the Juniata River Basin in Western Blair County, Pennsylvania.

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