LA FARGE - Manure from a large dairy farm in western Wisconsin polluted a trout stream and tributary to the Kickapoo River this week and has killed more than 1,300 fish, state officials said Friday.
The fish kill included brown and brook trout in the headwaters of Otter Creek near La Farge in Vernon County, according to the Department of Natural Resources.
The accident is still under investigation, but as of Friday, Oct. 6, officials said that it did not appear as if contamination had spread to the Kickapoo, a popular river for canoeists and other recreational users in southwestern Wisconsin.
Manure spilled from Wild Rose Dairy earlier this week and the source of the pollution has been controlled, the agency said. DNR records show the farm has a permit to house about 1,800 animal units. One animal unit is equivalent to a 1,000-pound cow.
It was not immediately known how much manure spilled into Otter Creek. "Clearly, it was big enough to cause the kill," said Andrew Savagian, a department spokesman.