The Iowa Department of Natural Resources (DNR) has traced a fish kill in the West Branch of the Floyd River south of Sioux Center to Sioux-Preme Packing Company, located just south of Sioux Center. The DNR continues to investigate the reason for the discharge.

Sioux-Preme Packing, a pork processing facility, has hired a contractor to clean up the water in the river, according to The DNR will continue to monitor cleanup and will pursue appropriate enforcement action as well as restitution.

Staff from the DNR found elevated ammonia levels and thousands of dead fish, including game fish, for at least nine miles downstream of the plant. Fisheries staff conducted their count of dead fish as more fish continued to die after the incident occurred last week.

The fish kill was reported to the DNR after a resident noticed stressed fish in the stream over the Oct. 27 weekend.

The DNR stressed that it’s important to contact the 24-hour spill line at (515) 281-8694 as soon as possible after seeing a fish kill. The greater the delay between the event and the reporting, the less likely it is that the source of the pollution can be traced.

The National Pork Board (NPB) urges producers to prepare an emergency action plan for on-farm emergencies, such as hazardous material spills. For more information, click here.