Agropur expansion raising water quality concerns

A cheese maker’s plans to expanding its operations in eastern South Dakota is running into some opposition because of its request to dump millions of gallons of waste water per day into the Big Sioux River.

Wisconsin-based Agropur needs a permit from South Dakota environmental officials to discharge into the river. Agropur is expanding its facility in Lake Norden and upgrading its waste water treatment plant. Plans still call for discharging up to two million gallons of waste water a day into the nearby Big Sioux River watershed.

The Argus Leader reports environmentalists and officials with several water systems in the region say the move could put drinking water supplies downstream at risk. They’re concerned with the nitrate levels that will go with the waste water when it’s put back into the river.


Information from: Argus Leader,