1. Department of Civil Engineering, University of Nebraska—Lincoln, Lincoln, Nebraska 68588-0531, United States
2. School of Natural Resources, University of Nebraska—Lincoln, Lincoln, Nebraska 68583-0915, United States
3. Department of Chemistry, Albion College, Albion, Michigan 49224, United States
4. Water Sciences Laboratory, University of Nebraska—Lincoln, Lincoln, Nebraska 68583-0844, United States
5. Department of Veterinary Technology, Kasetsart University, Bangkok, Thailand 10900
6. Department of Environmental Science, Kasetsart University, Bangkok, Thailand 10900