Pennsylvania Water Science Center


Equal Employment Opportunity Policy Statement

Coronavirus (COVID-19) Update
We are operating at maximum telework and continue to conduct the important work of the USGS, including maintaining mission essential and critical functions. We have implemented new safety and fieldwork processes to maintain social distancing to ensure the safety of our employees and communities while following all guidance from the White House, Department of the Interior, USGS, Centers for Disease Control and Prevention (CDC), and Pennsylvania state and local authorities.

Follow for the latest COVID-19 information from the federal government


Date published: September 17, 2021

Northeastern U.S. Streams During Tropical Storm Henri

Streamflow and water level changed dramatically as Tropical Storm Henri made landfall in the northeastern U.S. in late August, 2021, as shown by the Water Footprint Data Visualization.

Date published: July 8, 2021

Spring Grove Weir Removal

Pennsylvania Water Science Center personnel remove broad-crested weir, Codorus Creek at Spring Grove

Date published: May 14, 2021

Science Outreach at Riverview High School

USGS staff participated in science outreach at Riverview High School, where students learned about environmental science and took part in interactive learning experiences.


Publication Thumbnail
Year Published: 2021

Geophysical and video logs of selected wells at and near the former Naval Air Warfare Center Warminster, Bucks County, Pennsylvania, 2017-19

The U.S. Geological Survey (USGS) collected borehole geophysical and video logs in 17 open-hole wells in Northampton, Warminster, and Warwick Townships, Bucks County, Pennsylvania during 2017–19 to support detailed groundwater investigations at and near the former Naval Air Warfare Center (NAWC) Warminster, where groundwater contamination with per...

Senior, Lisa A.; Anderson, J. Alton; Bird, Philip H.
Senior, L.A., Anderson, J.A., and Bird, P.H., 2021, Geophysical and video logs of selected wells at and near the former Naval Air Warfare Center Warminster, Bucks County, Pennsylvania, 2017–19: U.S. Geological Survey Open-File Report 2021–1025, 92 p.,

Publication Thumbnail
Year Published: 2021

Machine-learning predictions of high arsenic and high manganese at drinking water depths of the glacial aquifer system, northern continental United States

Globally, over 200 million people are chronically exposed to arsenic (As) and/or manganese (Mn) from drinking water. We used machine-learning (ML) boosted regression tree (BRT) models to predict high As (>10 μg/L) and Mn (>300 μg/L) in groundwater from the glacial aquifer system (GLAC), which spans 25 states in the northern United States and...

Erickson, Melinda L.; Elliott, Sarah M.; Brown, Craig J.; Stackelberg, Paul; Ransom, Katherine Marie; Reddy, James E.; Cravotta, Charles A.

Publication Thumbnail
Year Published: 2021

Evaluating low flow patterns, drivers and trends in the Delaware River Basin

In the humid, temperate Delaware River Basin (DRB) where water availability is generally reliable, summer low flows can cause competition between various human and ecological water uses. As temperatures continue to rise, population increases and development expands, it is critical to understand historical low flow variability to anticipate and...

Hammond, John; Fleming, Brandon J.