Introduction; Chapter 1 The Water-Quality Problem: A Study in Diversity; Chapter 2 The Institutional Setting; Chapter 3 Pragmatic Enforcement; Chapter 4 Bureaucrats and Attitudes: The Seeds of Discretion, Amelia Rouse, Robert Wright; Chapter 5 Bureaucratic Discretion and Hierarchical Political Control, Susan Hunter, Richard W. Waterman, Robert Wright; Chapter 6 Enforcement at the State Level; Chapter 7 Explaining Variations in NPDES Enforcement; Chapter 8 Water Outcomes: The Neglected Arena; Chapter 9 Conclusions and Recommendations;