1 CitiLogics, 615 Madison Ave., Covington, KY 41011.
2 Environmental Engineering Program, Dept. of Chemical and Environmental Engineering, Univ. of Cincinnati, 742 Engineering Research Center, P.O. Box 210012, Cincinnati, OH 45221-0012.
3 College of Engineering, Mathematics, and Physical Sciences, Univ. of Exeter, Harrison Bldg., North Park Rd., Exeter EX4 4QF, U.K.
4 Dept. of Civil and Environmental Engineering, Water Distribution and Sewage Systems Research Center (CIACUA), Universidad de los Andes, Carrera 1 Este No. 19A-40, Bogotá 111711018, Colombia.
5 School of Civil, Environmental and Mining Engineering, Univ. of Adelaide, Adelaide, SA 5005, Australia.
6 U.S. Environmental Protection Agency Office of Research and Development, 26 W. Martin Luther King Dr., Cincinnati, OH 45268.
7 Dept. of Civil Engineering, Univ. of Cape Town, Private Bag X3, Rondebosch 7701, South Africa.