Reservoirs
Johannesburg officials opened the new Brixton reservoir and tower this week, a year behind schedule. The project improves water pressure in the Commando system but leaves 43 other reservoirs still leaking across the city.
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The Superintendencia de Servicios Públicos reported that reservoirs in the National Interconnected System (SIN) reached 62.8% useful volume due to recent rains. Ituango leads at 98.8%, while Altoanchicaya has the lowest level at 15.5%. The agency highlighted robust contributions in key basins and higher river flows.
São Paulo's main reservoir system, Cantareira, saw a 0.1% drop in stored volume on January 1, 2026, reaching 20.1%, despite recent rains. This triggered the 'restriction' level, capping water withdrawals at 23 cubic meters per second, supplemented by the Rio Paraíba do Sul. Officials state there is no immediate risk of water rationing.