The following article aims to estimate the environmental impact of gold mining by the Water Foot Print indicator in the town of Segovia (Antioquia), which allows not only to analize the actual consumption of water in the stages of extraction and processing of gold, but also to quantify the degree of pollution generated mainly by mercury discharges. In this first approach will be considered the Blue and Grey Water Foot Print. The results become a tool for decision making in the town, as they allow direct the public and private actions to the activities that are affecting the water resource.