I´m looking for case studies, papers, articles, theses, and books on the subject in both countries in order to develop a comparative study with the Mexican case.
Many papers were written about the conflict in La Paz.
Regarding to Uruguay I don´t know much but there are some interesting work done in the watershed of Quaraí River (you may found Cai River as well), most related to governance and public particpation in the management and decision making process.
Private firms were likely to abuse their monopoly power in this type of markets, and concentrate their service supply on rich households, leaving poor households without access to a basic service. In September 2010, the United Nation’s Human Rights’ Council adopted Resolution 64/292 which declares access to water and sanitation a human right
La reconstrucción de lo publico: movimiento social, ciudadania y gestión de agua en Cochabamba. From: Sabine Hoffmann, Bernardo Rozo, Luis Tapia y Jorge Viaña.
Also you look after at CEPAL, they have an special group who look's after water crises and rights
Formal recognition of the human right to water by the United Nations is a vital first step to ensure that all people have access to this most basic human need. Yet the United States government has historically opposed this movement. It is time for the administration of Barack Obama to take a stand for human rights and throw its support behind a U.N. resolution that codifies the human right to water.
Please see the relevant studies as under:
1.The Constitutional Right to Water in Uruguay, by Rachael Moshman (See link)
2. Thomas Coleman, "Who Owns the Water? An Analysis of Water Conflicts in Latin American and Modern Water Law," intersections 12, no. 2 (2012): 1-19. (See link)
3. Water and sanitation: Evidence for public policies focused on human rights and public health results, PAN AMERICAN (See link)
4. Yes We Can: Why Obama Must Put Human Rights First and Support the Right to Water (See link)