Argentina
Colombia
Pakistan

The courts in the following three examples from Colombia, Argentina, and Pakistan each considered cases involving an entire watershed and created unique solutions to supervise the long-term cleanup and restoration of the river systems. The Colombia Consejo de Estado, the country’s highest administrative appeals court, issued a judgment in 2014 against companies, government agencies, and municipalities that caused or failed to prevent the degradation of the Bogotá River watershed. The Court developed a remedial plan based on the evidence of technical experts and established requirements for the treatment of wastewater, the control of livestock, and the siting of mines, among other regional activities. To coordinate the rehabilitation of the entire watershed, the Court ordered the creation of a committee and central funding source to monitor and support the completion of the Court’s plan to rehabilitate the river. In 2008, Argentina’s Supreme Court issued a ruling in an action fled by residents against private companies, the national government, and the provincial and municipal governments of Buenos Aires asserting that their constitutional right to a healthy environment had been violated by pollution of the Matanza-Riachuelo river basin. The Court ordered the river basin authority to oversee the restoration of the river basin’s components and the improvement of the local community’s quality of life. The plan mandated transparency by requiring the creation of a website to centralize up-todate information on the plan’s execution, and it ordered the authority to establish an emergency health plan to monitor and treat the medical needs of the local population. In response to a 2012 public interest litigation petition regarding the discharge of untreated municipal and industrial wastewater into the River Ravi, the Green Bench of the Lahore High Court in Pakistan ordered the establishment of the River Ravi Commission to manage the river’s restoration. The Commission, comprising experts and government and non-governmental representatives, was given the task of fnding local and low-tech solutions for controlling pollution in the River Ravi. The Commission developed a bioremediation project using wetlands to treat wastewater. The Lahore High Court held periodic hearings on the progress of the Commission’s work and, in 2015, ordered full-scale implementation of the bioremediation project.