Since 1967, Stroud Water Research Center has focused on one thing — fresh water.
We advance knowledge and stewardship of freshwater systems through global research, education, and watershed restoration.

What We Do

Freshwater Research

Environmental Education

Watershed Restoration

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Road Salt is Polluting Fresh Water

Salt keeps us safe on icy roads — but it’s also quietly harming waterways.

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Latest News

Stroud Center entomologists have been sampling macroinvertebrates in the Susquehanna River near Procter & Gamble’s Mehoopany plant since 1974.

Fund Long-Term Research Like Infrastructure

Long-term environmental research is how communities detect risks early. It is how we make smarter decisions, reduce costs, and protect public well-being.

Stroud Center Scientist Testifies About Stream Impairment

The public hearing was organized in response to the Integrated Water Quality Report 2026 issued by the Pennsylvania Department of Environmental Protection.

Native shrubs planted by Scouts to improve wildlife habitat and protect a stream.

New Partnership Expands Watershed Education in the Brandywine

Stroud Water Research Center is advancing local drinking water protection through the Protect Your Drinking Water Grant Program funded by Aqua Pennsylvania.

Publication title with image of a mayfly

Interception of river sediment in estuaries revealed by microbial community source tracking

Kan, J., and S.H. Ensign. 2026. Estuaries and Coasts 49, 55.

Project TRUE interns sample macroinvertebrates and small fish from an eel mop.

F(eel)ing Buggy: Project TRUE Interns Survey the Bronx River

The interns used kicknets, eel mops, and the iNaturalist community science app to find and identify macroinvertebrates, and even small fish.

Jim Hershey Receives Pennsylvania Leopold Conservation Award

Jim and his family farm using no-till practices, cover crops, and riparian buffers that help keep soil and nutrients on the field and out of nearby streams.

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Featured Initiatives and Partnerships

WikiWatershed® web tools offer watershed data visualization, geospatial analysis capabilities, and science-based predictions of human impacts on stormwater runoff and water quality.

The Water Quality mobile app is a water-monitoring data-collection and learning tool designed for use by educators and their students, citizen scientists, and researchers.

EnviroDIY™ is a community where members ask and answer questions and network within interest groups to develop do-it-yourself environmental science and monitoring devices.

The Society for Freshwater Science Taxonomic Certification Program ensures skilled persons are providing aquatic invertebrate identifications in North America.

The Leaf Pack Network® is an international network of teachers, students, and citizen monitors using a simple experiment to determine the health of their local streams.

The Consortium for Scientific Assistance to Watersheds provides free technical assistance to Pennsylvania-based watershed and conservation organizations.