Water is essential for life and its access is being affected by insufficient investments, contamination, and climate change worldwide. This book analyses corruption practices in water management and services in Argentina and a selection of case studies from other countries in South America. One of the main objectives of this manuscript was to carry out a study of the cases of concessions and nationalizations that cover two geographical areas; the City of Buenos Aires and 17 Counties of the Province of Buenos Aires and 15 cities of the Province of Santa Fe, in Argentina. The text analyses different theoretical and empirical experiences and combines academic, social and technical approaches. It concentrates on two fundamental aspects merged in its study: the provision of a public service such as water and corruption. These were analysed from the legal field, using heuristic tools that are not commonly used in the discipline. This multi-theoretical approach can be of interest of academics, professors and general public.