The Delavan Lake Improvement Association (DLIA) is a community organization dedicated to the preservation and enhancement of Delavan Lake in Wisconsin. Founded in 1970, the association focuses on promoting sustainable practices to protect the lake's water quality and natural habitat. DLIA engages local residents, property owners, and visitors through educational programs, volunteer opportunities, and advocacy efforts. The organization collaborates with local governments and environmental agencies to address issues such as pollution, invasive species, and shoreline management, ensuring the lake remains a valuable resource for future generations.