MUNSTER, Ind. State officials say they may never know what caused some 200 fish to die off suddenly in the Little Calumet River in northwest Indiana late last month.
The Times of Munster reports (http://bit.ly/1b82uDx ) the state Department of Environmental Management and state Department of Natural Resources say collection of water and fish from the along a quarter-mile stretch of the river proved inadequate for analysis.
IDEM spokeswoman Amy Smith says not enough water was collected to perform an analysis. She says IDEM representatives checked the site July 3 and observed live fish in the river.
DNR's Law Enforcement Division said Lt. William Browne says problems with the condition of the fish collected prevented biologists from detecting possible contamination. He says the fish were too decomposed.