The mining operation reached a coal production of 33.4 Mtons during 2015, with approved expansion plans to increase production to 42 Mt in 2016 (Cerrejón [25]). The mine has three areas for storing coal, whit 18 piles daily maintenance.All piles store up to 3.2 Tons of coal. The coal mine borders three municipalities with a population of 59.089 inhabitants of which 34% are indigenous. Of this population, approximately 70% (41,362 inhabitants) living areas of influence of the mine (< 10 km).