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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.

Center News

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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Matthew Gyves selected as 2020 USGS Data Person of the Year

Matthew Gyves selected as 2020 USGS Data Person of the Year

Matthew C. Gyves, a Hydrologic Technician in the Pennsylvania Water Science Center's Downingtown Office, received the 2020 "Data Person of the Year"...

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USGS Field Crews Document Isaias' Effects Along Atlantic Coast

USGS Field Crews Document Isaias' Effects Along Atlantic Coast

To learn more about USGS’s role in providing science to decision makers before, during, and after Hurricane Isaias, visit the USGS Hurricane Isaias...

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Director Chapman introduces "Pennsylvania Waters" newsletter

Director Chapman introduces "Pennsylvania Waters" newsletter

Melinda Chapman, recently appointed Director of the Pennsylvania Water Science Center (previously Assistant Chief of the USGS Office of Groundwater)...

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USGS Characterizes Flow Paths for Movement of PFAS in Groundwater in Southeastern Pennsylvania

USGS Characterizes Flow Paths for Movement of PFAS in Groundwater in Southeastern Pennsylvania

A USGS study characterized groundwater flow paths from possible PFAS sources at three former and active military facilities in southeastern...

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Science Night at Fishing Creek Elementary School

Science Night at Fishing Creek Elementary School

USGS staff participated in Science Night at Fishing Creek Elementary School, where students learned about the native macroinvertebrate* population in...

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USGS is Hiring Hydrologic Field Assistants in Pennsylvania -- CLOSED

USGS is Hiring Hydrologic Field Assistants in Pennsylvania -- CLOSED

The Pennsylvania Water Science Center is looking for Hydrologic Technicians (Field Assistants) to join our teams in New Cumberland (Harrisburg)...

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USGS has two openings for recent-graduate water scientists in Pennsylvania - CLOSED

USGS has two openings for recent-graduate water scientists in Pennsylvania - CLOSED

The application period ended on December 30, 2020.

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Drought Streamflow Probabilities in Northeast Region

Drought Streamflow Probabilities in Northeast Region

Maximum likelihood logistic regression (MLLR) is used to estimate drought probabilities for selected Northeast rivers and streams. Winter streamflows...

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High Levels of Radon Found in Some Wells Across Pennsylvania

High Levels of Radon Found in Some Wells Across Pennsylvania

A new U.S. Geological Survey study has discovered high levels of radon in wells across certain areas of Pennsylvania.

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USGS Finds Elevated Levels of Arsenic, Radon, Methane in Some Private Wells in Lycoming County, Pennsylvania

USGS Finds Elevated Levels of Arsenic, Radon, Methane in Some Private Wells in Lycoming County, Pennsylvania

Tests of 75 private drinking water wells in Lycoming County, in north-central Pennsylvania, found water from most of the sampled wells contained...

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New USGS Streamgages Provide Flood Monitoring for Additional Philadelphia Neighborhoods

New USGS Streamgages Provide Flood Monitoring for Additional Philadelphia Neighborhoods

Philadelphia communities along the Schuylkill River and Darby Creek now have new tools to help inform residents of impending flooding. The U.S...

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