Urban Planning and Aquifer Management Using Recession Curves Method

The expansion of cities and population growth can intensify the use of water resources. The management of these resources presents several interfaces with urban planning, since water is a fundamental element in urban and regional management, due to its potential to induce or hinder social and economic development. An assessment of the regulatory reserves in the Cafezal stream was carried out using the recession curve analysis method, as well as the current groundwater consumption. Hydrographs were made to observe the recession period based on the selected date from 2008, considered a dry year. Data were obtained from 88 wells drilled in the area with a total discharge of 1005.39 m3/h, with an average of 11.42 m3/h and annual consumption of 4.04 × 106 m3/year. Regulatory reserves total are 39.48 × 106 m3/year, with 10.23% of their potential being used through deep wells. Thus, the aquifer has a current exploitation under its potential, and the discharge is considered safe, causing no damage to the aquifer system.