L. D. McMullen is the Chief Executive Officer and General Manager of Des Moines Water Works, a position he has held since 1986. A native of Cresco, Iowa, he joined the utility in 1978 as a design engineer, was appointed director of engineering services in 1980, assistant general manager in 1985 and acting general manager in 1986. Prior to joining the utility, he was an assistant professor in the engineering department at University of Iowa in Iowa City. Dr. McMullen holds a B.S. in Civil Engineering, a M.S. and a Ph.D. in Environmental Engineering, all from the University of Iowa.