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A scientist measures chlorophyll in a stream using a field fluorometer.

When Local News and Science Go Dark, the River Loses Its Voice

 1000 563 Stroud Water Research Center

Supporting local journalism and local science is not charity. It is an investment in the data, transparency, and accountability that keep fresh water safe.

Scott Ensign with Open-Source River Camera and Altimetry (ORCA) for measuring river flooding.

Open Source Hardware Solves Flood Monitoring Challenges

 800 450 Stroud Water Research Center

Scientists and engineers at Stroud Water Research Center have developed a compact, inexpensive, and rapidly deployable tool for measuring river floods.

Publication title with image of a mayfly

High-frequency soil redox data provide novel insights into biogeochemical hot spots and hot moments

 350 210 Stroud Water Research Center

Sena, M.G., B. Joshi, M.M. Rahman, M. Peipoch, J. Kan, E. Moore, M. Afsar, Y. Jin, D. Dwivedi, E. Peck, and S. Inamdar. 2025. Hydrological Processes 39(12): e70367.

TTF Watershed Partnership staff member measuring conductivity in winter salt stream snapshot samples.

Winter Salt Snapshot 2026

 800 450 Stroud Water Research Center

Volunteers throughout the Delaware River watershed and beyond will sample streams to tell the story of road salt in their communities.

A TTF Watershed Partnership volunteers collecting a winter salt stream snapshot sample.

Winter Salt Week 2026

 800 450 Stroud Water Research Center

Join us for a week of virtual and in-person events dedicated to raising awareness around salt pollution and reduction solutions.

2025 Fall Salt Snapshot data map screenshot

What the Fall Salt Snapshot Revealed About Our Groundwater

 800 450 Stroud Water Research Center

Most stream sites sampled this fall exceeded at least one environmental chloride guideline — months after the last road salt was applied.

Floating monitoring stations installed at the inlet and outlet of a drinking water reservoir in Wilmington, Delaware.

Algae on the Rise

 800 450 Stroud Water Research Center

Stroud Center’s monitoring supports safer drinking water in Wilmington, Delaware, by streaming real-time data to the city’s treatment facility.

Stroud Water Research Center is an 2025 Anthem Awards Bronze Winner for the Cut the Salt campaign.

“Cut the Salt” Campaign Wins Anthem Award for Social Impact

 800 450 Stroud Water Research Center

The award is a testament to Stroud Center staff who help bring science and outreach to life, and would not be possible without our community of partners, volunteers, and donors.

Publication title with image of a mayfly

Modeling the competition and controls for denitrification and dissimilatory nitrate reduction to ammonium (DNRA) in riparian sediments

 350 210 Stroud Water Research Center

Joshi, B., D. Dwivedi, M.M. Rahman, M.G. Sena, E.R. Moore, J.G. Galella, M. Peipoch, J. Kan, P. Imhoff, and S. Inamdar. 2025. Journal of Geophysical Research: Biogeosciences 130(12): e2025JG009072.

Delaware River with waves in foreground and forested banks in background. Photo by Tim Palmer.

Scientists Oviedo and Dow Make Waves in Freshwater Science

 800 450 Stroud Water Research Center

We congratulate Diana Oviedo Vargas, Ph.D., and Charles Dow, Ph.D., on recent achievements highlighting their commitment to advancing freshwater science.