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IA DNR investigating spill, fish kill in Butler County


November 9, 2017
By Iowa Department of Natural Resources

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November 9, 2017, Allison, IA – A leaking pit from a hog confinement about five miles southeast of Allison in Butler County sent Iowa Department or Natural Resources (DNR) staff to the field to investigate Nov. 4.

The manure flowed into a grass waterway, into an underground tile line and into a tributary of the West Fork of the Cedar River. The facility owner discovered the leak and a faulty pipe seal.

The farm crew worked overnight to remove manure from the pit and land apply it. They also worked to dam the tributary and pump up contaminated water in the creek.

When the DNR arrived, pumping and land application to crop fields continued. Most of the contaminated water was contained, but field tests showed elevated ammonia levels below the dam. Staff saw one small dead fish but no others.

The owner continued pumping contaminated water and land applying it. On Nov. 6, DNR staff found contaminated water contained to a one-mile stretch of the tributary. Fisheries staff found a few more dead fish, but also live fish in the stream.

The DNR will continue to monitor cleanup and will consider appropriate enforcement action.