This discussion on the additives program took place June 18, 1990, in Cincinnati, Ohio, during AWWA's annual conference. Panel moderator was Robert Lamson, AWWA's director of standards. Members of the panel were R. Dewey Dickson, senior consultant with James M. Montgomery Consulting Engineers Inc., 250 N. Madison, Pasadena, CA 91101; David Gregorka, vice president‐administration, National Sanitation Foundation, 3475 Plymouth Rd., Ann Arbor, MI 48105; John J. Hawley, associate managing engineer, Underwriters Laboratories Inc., 333 Pfingsten Rd., Northbrook, IL 60062; Wendell R. Inhoffer, general superintendent and chief engineer, Passaic Valley Water Commission, 1525 Main Ave., Clifton, NJ 07011; Gregory A. Kurkjian Jr., president and chief executive officer, Henry Pratt Co., 401 S. Highland Ave., Aurora, IL 60506; Vernon D. Lucy, senior vice president‐marketing, Infilco Degremont Inc., 2924 Emerywood Pkwy., Richmond, VA 23229; and Gayle J. Smith, director, Bureau of Drinking Water/Sanitation, Utah Department of Health, 288 N 1460 W, Salt Lake City, UT 84116‐0690.