MURRAY – The Iowa Department of Natural Resources (DNR) is investigating a discharge of swine manure from a confinement sow operation in Clarke County that reached the Thompson River in south-central Iowa.
The DNR said the spill occurred about eight miles south of Murray as Swine Graphics–ADL 6 transferred manure from below-building pits to an outdoor basin. The transfer pipe broke, releasing an unknown amount of manure, according to the DNR.
Swine Graphics staff took action to stop the manure release, the DNR report said.
The manure traveled overland to a farm pond, which overflowed and into an unnamed tributary of the Thompson River and then flowed about 2.5 miles to the Thompson River.
The DNR said its staff took water samples and checked for dead fish in the farm pond, the tributary and in the river for several miles downstream. They did not find any dead fish.
The DNR said it will continue to monitor efforts to contain the spill and the cleanup efforts and will consider appropriate enforcement action.
If you see a spill or fish kill, call the DNR’s 24-hour emergency response line at 515-725-8694.