Iowa Department of Natural Resources

REGIONAL—The Iowa De­­partment of Natural Resources responded Friday, July 5, to three manure discharges caused by heavy rainfall in N’West Iowa.

The DNR reported that the effluent basin was overflowing at Gaylon Rozeboom’s cattle feedlot near Rock Rapids and reaching a nearby unnamed tributary of Mud Creek, which was out of its banks due to the excessive rainfall.

The owner had been land applying manure, but the ground was saturated from the rainfall and the applied manure was running off into the same flooded unnamed tributary in a different location.

Water samples have been collected by the DNR. In the meantime, the owner turned the pumps on and off more frequently to minimize the discharge, which stopped on Sunday, July 7.

The DNR previously reported responding Thursday, June 27, to an anonymous complaint of an overflowing settling basin at Rozeboom’s cattle feedlot following heavy rainfall in localized parts of N’West Iowa.

That discharge flowed into a grassed waterway to an unnamed stream, which eventually flows into Mud Creek. DNR staff members collected water samples for laboratory analysis.

The DNR responded July 5 to Remmerde Farms near Rock Valley where the effluent basin was overflowing and reached an unnamed tributary of Dry Creek.

The owner pumped as often as possible to try to eliminate the discharge, which stopped July 7.

In addition, DNR staff members observed a discharge at Van Essen Feedlot near Rock Valley. The manure discharge was coming from a leaking pipe near the effluent basin.

The DNR worked with the owner to determine the cause of the discharge and to get it stopped, which was done in about an hour. The discharge was entering an unnamed tributary of Dry Creek.

All of the facilities are covered by National Pollutant Discharge Elimination System (NPDES) permits.

No fish kills have been re­­ported or observed from the discharges.

However, the DNR reported it will continue to monitor the facilities and cleanup efforts, and consider enforcement action, if appropriate.