1. Physical Scientist, Food and Drug Administration, 10903 New Hampshire Ave., Silver Spring, MD 20993; formerly, National Risk Management Research Laboratory, Water Supply and Water Resources Division, U.S. EPA, 26 W. MLK Dr., Cincinnati, OH 45268.
2. Research Ecologist, National Risk Management Research Laboratory, Water Supply and Water Resources Division, U.S. EPA, 26 W. MLK Dr., Cincinnati, OH 45268.
3. Postdoctoral Associate, Dept. of Civil Engineering, Catholic Univ. of America, Washington, DC 20064.
4. Graduate Student, National Risk Management Research Laboratory, Water Supply and Water Resources Division, U.S. EPA, 26 W. MLK Dr., Cincinnati, OH 45268.
5. Graduate Student, Dept. of Civil Engineering, Catholic Univ. of America, Washington, DC 20064.
6. Environmental Engineer, National Risk Management Research Laboratory, Water Supply and Water Resources Division, U.S. EPA, 26 W. MLK Dr., Cincinnati, OH 45268.
7. Associate Professor, Dept. of Civil Engineering, Catholic Univ. of America, Washington, DC 20064 (corresponding author). ORCID: .