Por: Yvonne Lomparte, Carlos Uriol, Omar Bendezu, Fidel Basurto, Luis León, Yoci Pinedo, Jhonnathan Muñoz y Edgar Machuca, Compañía Minera Poderosa. AbstractThe mining camps of Cedro and Santa María in the Santa María production unit have workers who perform mine, plant and service operations; who as a basic need require water for the development of their camp activities and feeding. During 2017 - 2019, the Environmental Management area improved the supply of drinking water through the implementation of three ultrafiltration plants in the mining camps.These plants under the original design, consider the membrane backwashing stage, which is performed with 20% of treated water, being this water rejected by the ultrafiltration plant, generating a greater volume of catchment, industrial effluents and higher operating cost for treatment of water that will be used for backwashing and treatment of the effluent produced by the plant.The project considers the reuse of 85% of the rejection water from the ultrafiltration plant through an automated recirculation circuit, increasing efficiency from 80% to 96%, which will allow greater treatment of the resource for supplying the workers.