Little Calumet River State Investigating, Overseeing Cleanup Of Oil Discharge Into The White River By Rebecca Thiele • Sep 9, 2019 The Indiana Department of Environmental Management is investigating the source of oil discharged from a sewer pipe into the White River in Indianapolis. A fisherman contacted officials after seeing the oil along the river’s banks. Visitor Numbers Are Up Since Indiana Dunes Became A National Park By Rebecca Thiele • Sep 3, 2019 Since it became a national park, the number of visitors at Indiana Dunes has gone up dramatically. Indiana National Dunes Beaches Closed After Fish Kill By Jill Sheridan • Aug 16, 2019 Beaches, including ones in the state’s first national park, are closed this weekend after a large fish kill. Authorities say the kill is likely the result of a chemical spill.