This proceeding arises from a discharge of manure-laden wastewater from the Bob Wallin Dairy (the “Dairy”), a dairy cattle operation owned and operated by Robert J. Wallin. On February 13, 1998, inspectors from the U.S. Environmental Protection Agency Region X (the “Region”) observed manure-laden wastewater entering a wetland on the Dairy property and then exiting the property in the direction of the White River. Sampling conducted by the inspectors on the Dairy property revealed that the wastewater contained high levels of fecal contamination.