Testing soil & air safety after tornadoes
Evaluating the soil and air quality for contaminants to help St. Louis rebuild.
WashU Launched 2025
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After the 2025 EF3 tornado, St. Louisans needed answers about how safe it was to return to their homes and neighborhoods. We stepped into provide answers.
With debris spread across north St. Louis, CLEAN STL exists to give the St. Louis community the information they need to recover recover and rebuild safely. No long wait times or complicated paperwork—just clear steps and straight answers.
We’re building on USC Public Exchange’s CLEAN —launched in the wake of the 2025 wildfires—to provide much-needed answers about soil health and safety. What began as a rapid response to disaster has become a model for how universities can mobilize during disasters and support recovery long after, addressing equity, oversight, and environmental health in the process.
Meet the project team

Anna Foster, MSW
Project Manager
Project team

Matthew Bernstine
Director, Lecturer
Office of Socially Engaged Practice, WashU Sam Fox School of Design and Visual Arts

Sheretta Butler-Barnes, PhD
Dean’s Distinguished Professorial Scholar, Professor
WashU Brown School

Jeff Catalano, PhD
Director, Professor
WashU Department of Earth, Environment, and Planetary Sciences

Dan Giammar, PhD
Director, Professor
Center for the Environment, WashU McKelvey School of Engineering

Alex Morales-Heil
Program Manager
Center for the Environment, WashU McKelvey School of Engineering

Jay Turner, DSc
Head of Division of Engineering Education, Vice Dean of Education, Professor
WashU McKelvey School of Engineering