Caitie Nigrelli, an environmental social scientist working for IISG and the U.S. EPA, has been featured in a Christian Science Monitor article about her involvement in the cleanup of the Grand Calumet River in Northwest Indiana.
The reason behind the article? “Industry and environmental interests are often opposed. But in Indiana, a river cleanup requiring both sides to negotiate with each other offers an example for conservation partnerships everywhere.”
Cleaning up contaminated rivers, lakes and harbors facilitates the revitalization of waterfront economies on the Great Lakes. Aimed at industries, municipalities, states and non-governmental organizations, “A Seat at the Table: Great Lakes Legacy Act” is a new video that explains what it means to be a cost-share partner with the Environmental Protection Agency (EPA) under the Great Lakes Legacy Act (GLLA). The video uses interviews with partners to describe the benefits and challenges of cost-share partnering, the cost-sharing mechanism, examples of in-kind services and the flexibility of partnerships.
The GLLA is a component of the Great Lakes Restoration Initiative that addresses sediment remediation and habitat restoration in Great Lakes Areas of Concern. Contaminated sediment—caused by toxic chemicals, heavy metals, oil and other pollutants—can be a serious problem for communities struggling to revitalize their waterfronts and boost their economies.
Since 2002, the EPA has partnered with 57 entities under the GLLA to study, design and execute sediment cleanups across the Great Lakes basin. Over 4 million cubic yards of sediment have been remediated, removing threats to public health, creating vibrant environments for fish and wildlife, and giving coastal communities usable waterfronts.
The program is based on cost-sharing, which means that cleanup projects that result in economic revitalization, increased property values and an improved quality of life cannot take place unless partners contribute money or in-kind services. Through the GLLA, the EPA will cover up to 65 percent of the cleanup cost, and nonfederal entities can team up to volunteer matching funds. Once partners have been established, the GLLA program is able to help communities by completing cleanup projects.
“Legacy Act projects don’t take place unless a volunteer comes to the table and contributes cash or in-kind services,” said Caitie Nigrelli, an environmental social scientist for Illinois-Indiana Sea Grant and a liaison to the EPA Great Lakes National Program Office. “We have a lot of contaminated sediment sites left in the Great Lakes, creating blight and preventing local economies from realizing their potential. Voluntary, collaborative partnerships are the solution to the problem.”
Current and past partners include industry organizations (Honeywell, Ford, U.S. Steel), states (Indiana, Minnesota), municipalities (City of Toledo, Ashtabula City Port Authority) and non-governmental organizations (Buffalo Niagara Waterkeeper).
Want to see what successful partnerships can accomplish? Follow Caitie Nigrelli (@Gr8LakesLady) on Twitter as she shares 22 sediment site success stories, including before and after photos, contamination causes, partnerships and cleanup details. She’ll share one story, highlighting one location, each day for 22 days. Follow and join the conversation using #22SedimentStories.
“A Seat at the Table: Great Lakes Legacy Act” was funded by the Great Lakes Restoration Initiative and produced by Illinois-Indiana Sea Grant and University of Illinois Extension.
Meet IISG grad student scholar, Dohyung Bang! Dohyung is a PhD candidate in the White Lodging-J.W. Marriott, Jr. School of Hospitality and Tourism Management (@purduehtmlife) program at Purdue University. He is studying how complex tourism systems shape societal and economic outcomes. His project, funded by IISG, examines the impact of the home-sharing economy on housing market dynamics in the Lake Michigan area.
Photo 1: photo of Dohyung Bang Photo 2: A map illustrating short-term rental distribution in the Chicago area. Photo 3: Dohyung Bang presents his research at the 31st Annual Graduate Education and Graduate Student Research Conference in Hospitality and Tourism
Learn more about Dohyung’s work at the link in bio.
Interested in becoming an IISG grad student scholar? Learn more: https://iiseagrant.org/its-time-to-apply-for-the-2026-iisg-graduate-scholars-program/
Join the 2026 Great Lakes BioBlitz! 🌎🦋📸 Starting Earth Day, educators, students, youth groups, and families are invited to help document biodiversity across the Great Lakes region using iNaturalist. A kick-off webinar is scheduled for April 16th at 2 pm CT. Participate anytime during the four‑week event. Snap photos, make observations, and contribute to real conservation data while getting students outside and engaged with nature.
Learn more and get ready to explore: https://sites.google.com/wisc.edu/annual-great-lakes-bioblitz/2026
Don’t miss out! Join us for a deep dive into the latest Lake Michigan fisheries science.
Topics will include: -Reef restoration impacts on aquatic and fish species -Wild reproduction rates for salmon and trout species from the Great Lakes Mass Marking Program -Fisheries update from the Illinois Department of Natural Resources
Learn more & register: https://purdue.ca1.qualtrics.com/jfe/form/SV_86eBlPnbjdm7pPg
Celebrate Earth Day with freshwater science and good conversation! Join Illinois-Indiana Sea Grant, the Northwestern Center for Water, Loyola University researcher Tim Hoellein, and IISG’s Sarah Zack for Science Sips: Trash Talk about Chicago Waterways. Learn what research reveals about litter and trash in Lake Michigan and Chicago waterways and what we can do to help. Plus, enjoy Great Lakes trivia games!
📅 April 22, 2026 ⏰ 7–9 PM 📍 Sketchbook Brewing Company, Evanston Tap Room
Come curious and ready to test your Great Lakes knowledge!