Regulating Toxic Substances in Surface Water offers a critical examination of the mechanisms used to control, reduce and eliminate toxic substances and their impacts on acquatic ecosystems and human health. The book explains how surface water criteria for toxic substances are developed and how criteria are used to control sources of toxic pollutants to surface waters. The book examines the many science-policy decisions that are made during implementation of the Clean Water Act and explores several areas of surface water impairment that have not been addressed by existing regulatory mechanisms.