Book excerpt: To assist the implementation of benefit-cost analysis, this research report describes issues and techniques related to estimating the human health risk reduction benefits provided by actions that reduce contaminant concentrations in drinking water, and discusses how these benefits should be compared to costs. Material is relevant for evaluating the benefits and costs of federal and state regulatory actions such as setting a Maximum Contaminant Level, instituting treatment requirements, and implementing a guideline or advisory. The report will be of interest to water utility professionals, benefit- cost practitioners, and public policy decision makers. No subject index. Annotation copyrighted by Book News Inc., Portland, OR.