Mining is one of the most important activities in Peru, although controversial because it is currently highly criticized for generating environmental liabilities that mostly contain a high content of metals which contaminate the different environmental components such as water. , soil, air, biodiversity and social among others, for the study and analysis of the soil in a specific area we will use the grey clustering methodology, which determines, based on the grey systems and it should be noted that for this analysis it was also used as a reference the parameters defined by the Kelley Directives, a clustering coefficient through various calculations and with these define the level of soil contamination in 5 sectors located in the communities of Michiquillay and La Encañada. With the calculated grey clustering coefficients, it was determined that, of the five sectors, only the Michiquillay sector presents a slight level of contamination, and the other sectors are in uncontaminated soils, at least for the parameters that were selected. Mining activity, the authorities in charge of measuring the environmental impact in the sector, can proceed to investigate and infract if the permitted limits are exceeded and these have not been correctly remedied. The results of this study could be an important contribution for the analysis of soil contamination and the impact on the same of future mining projects that are developed in Michiquillay and La Encañada communities studied, how much the natural conditions of the soils have changed after the operation of the mine. Keywords—Grey Clustering, Grey Systems, Mining Activities, Soil Quality.