AWWA JAW63840

Disinfection byproducts (DBPs) have been regulated in finished drinking water for more than 25 years. This article, adapted from the Clarke Prize Lecture delivered by the author, analyzes several aspects related to the science and policy of DBP regulation and control and highlights deficiencies that are undermining public health protection. These deficiencies include limitations in the epidemiological studies that were conducted on the adverse health effects of DBPs and led to their regulation as well as shortcomings in the regulatory approach that the US Environmental Protection Agency has adhered to over the past quarter-century. In addition, water suppliers have been relatively shortsighted in their methods of controlling DBP formation and must look to long-term management and treatment methods. Drawing on his 31 years of research on the subject, the author has developed concrete suggestions for improving DBP health effects studies, regulatory approaches, and control strategies. Includes 24 references, figures.