MOUNT CALVARY - Cleanup and investigation continue after rains on Aug. 20 caused manure runoff into the Sheboygan River.

The runoff occurred after manure was spread on fields the weekend prior by Redtail Ridge Dair farm in Malone area, and reached into over 11 miles of creek between Taycheedah and Mount Calvary, according to the Wisconsin Department of Natural Resources, causing fish to die. As of Aug. 23, the DNR stated the runoff was “largely uncontained.”

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Since, it was reported on Aug. 24 nearly one million gallons of water and manure were collected from streams affected and placed in “manure storage facilities” by Redtail Ridge Dairy, according to a press release from the Fond du Lac County Land & Water Conservation Department Director Paul Tollard.

However, the department determined that this was not the only spill that drained into the streams, as another “separate manure pit unrelated to Redtail Ridge Dairy Farm” was found to be overtopping, according to the release. Due to coordination efforts between the DNR and the department, the landowner was able to work with Redtail Ridge Dairy to stop the manure from overtopping.

On Aug. 25, the department and DNR reported that the smell and clarity of the affected streams was improving, although the contamination had already reached the Village of St. Cloud Park, where fish died.

Water samples were collected along the streams and the impact of the fish kill assessed on Aug. 27, as the Redtail Ridge Dairy “made efforts to collect the dead fish and remove them from the village park area,” according to the release.

Signs reminding the public to “avoid contact with the water” are posted along the Sheboygan River and tributaries affected, with expectation remain through Labor Day Weekend.

Sophie Carson contributed to this report.