1. Member, ASCE
2. Sr. Res. Engrg. Advisor, National Risk Management Research Laboratory (NRMRL), U.S. Environmental Protection Agency, 26 West Martin Luther King Drive, Cincinnati, OH 45268.
3. Chf., Treatment Technol. Evaluation Branch, Water Supply and Water Resour. Div., U.S. Environmental Protection Agency, 26 West M. L. King Dr., Cincinnati, OH 45268.
4. Math. Statistician, Ofc. of Dir., Water Supply and Water Resour. Div., U.S. Environment Protection Agency, 26 West M. L. King Dr., Cincinnati, OH 45268.
5. Chemist, Nat. Council on the Aging, Inc., 26 West M. L. King Dr., Cincinnati, OH 45268.