Water supply and sanitation Domestic consumption accounts for 21% of water withdrawals in Brazil. The
water and sanitation sector in Brazil has proved to be resilient and resourceful, despite tremendous challenges and persistent inequalities in the sector. Much has been achieved in the past decades, including a sustained improvement in efficiency and access. Access to improved
water supply increased from 93 % in 1990 to 90% in 2004, and access to improved
sanitation increased from 71% to 75%.
Irrigation and drainage About 61% of all water withdrawal in Brazil is used for irrigation, which is lower than the average water withdrawal for irrigation in Latin America, 71%. The irrigated area in 1998 was 2.8 million ha, which represents 5.7% of the cultivated area. The irrigation potential of Brazil is estimated at 29.3 million ha, including only areas where irrigation can be developed and excluding areas of high ecological value in the northern region (Amazonas and Tocantins basins). The Ineffective irrigation has generated salinization and drainage problems in 15,000 ha, mostly in the northeast (of a total irrigated area of 736,000 hectares), jeopardizing these lands' productivity. Brazil also has the largest
hydroelectric power plant in operation in the world, the
Itaipú Dam which was built from 1975 to 1991, in a joint development on the
Paraná River. Its 18 generating units add up to a total production capacity of 12,600 MW (megawatts) and a reliable output of 75 million MWh a year, providing 25% of the energy supply in Brazil and 78% in Paraguay (in 1995). The Pantanal covers at least 140,000 square kilometers of land, over four times the size of the Florida Everglades in North America. There are an estimated 700 species of birds, including
spoonbills, and 26 species of
parrots, including the endangered
hyacinth macaw. The Pantanal is also home to the
capybara, the world's largest rodent. Fish thrive in this wetland environment (over 260 species have been noted). Illegal poaching, deforestation, overfishing, pollution from human sewage, agricultural pesticides, and metal pollutants are taking an increasing environmental toll on the area. In 2007, Brazil had identified
nine sites that fulfill criteria for wetlands of international importance according to the Ramsar Convention, seven of which are mainland wetlands. They include three National Parks: one in the Pantanal (Parque Nacional do Pantanal Mato-Grossense); one in the Araguaia (Parque Nacional do Araguaia); and one in the Peixe Lagoon (Parque Nacional da Lagoa do Peixe); two Environmental Protection Areas in the State of Maranhão (
Área de Proteção Ambiental da Baixada Maranhense and the Área de Proteção Ambiental das Reentrâncias Maranhenses); a Private Wetlands Reserve in the Pantanal (Reserva Particular do Patrimônio Natural SESC Pantanal); and the
Mamirauá Sustainable Development Reserve (Reserva de Desenvolvimento Sustentável Mamirauá). In 2006, the Government of Brazil approved its first Freshwater Management Plan, assuring that aquatic biodiversity will be an important aspect of freshwater planning for the entire country. With this plan, Brazil's Government explicitly made biodiversity a part of the decision-making process for the use of the country's freshwater resources. ==Legal and institutional framework==