DNR Investigating Fish Kill In West Branch Floyd River Near Sioux Center

Sioux Center, Iowa — The DNR is investigating a fish kill in the West Branch of the Floyd River, about two and a half miles south of Sioux Center.

A resident reported the stream was very murky and the fish looked stressed when he saw them this weekend.

The Department of Natural Resources reports their staff found elevated ammonia levels and several dead fish north of the Highway 75 bridge. The DNR specialists are working their way upstream to see if they can find the source of the fish kill.

High ammonia content generally indicates the source is a nutrient, often fertilizer, manure or wastewater.

DNR officials remind Iowa residents and visitors that it’s important to call the DNR’s 24-hour spill line 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.

That spill line, for future reference is 515-281-8694.

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