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

Teachers perform a stream study as part of a workshop.

When White Clay Creek Watershed Becomes a Classroom

From rubber duck races to Junior Ranger badges, the White Clay Creek watershed becomes an outdoor classroom for students, teachers, and families.

Philadelphia Catholic Schools Connect Watershed Science to Their Communities

With funding from the Connelly Foundation, students have participated in hands-on studies of freshwater ecology, watershed science, and stream restoration.

Publication title with image of a mayfly

Soil iron oxides as geochemical filters in floodplain restorations: Key drivers, dynamics, and links to nutrients and metals

Inamdar, S., J.G. Galella, E.R. Moore, M.M. Rahman, M. Sena, B. Joshi, M. Peipoch, and J. Kan. 2026. Journal of Environmental Management 408: 129967.

An aerial view of Choptank River Wetlands.

Whose Mud Is It? DNA Tracks Sediment Pollution in Chesapeake Bay

Stroud Center scientists used microbial DNA to trace sediment pollution in Maryland estuaries, helping managers target Chesapeake Bay restoration efforts more effectively.

Fair Winds and Following Seas to Our Assistant Director

Amidst the awakening spring blossoms, buzzing pollinators, and lengthening days, the Stroud Center bid bon voyage to one of its own.

A honeybee harvests nectar from native aster flowers.

The Surprising Journey of a House-Built Water Monitoring Tool

Tracking honeybee colony rhythms with the Mayfly Data Logger was just the first of many applications far beyond its original intent.

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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.