Abstract
The State Law of São Paulo No. 7.663, of 1991, established the State Water Resources Policy and the Water Resources Management System in the state of São Paulo. This Law created the River Basin Committees (CBH), which aim to manage conflicts over water. Currently, there are 21 CBHs implemented in the state of São Paulo, with the Alto Tietê River Basin Committee (CBHAT), created in 1994, i…