This study aimed at identifying sites polluted by hydrocarbons in the Corrientes river basin, Loreto-Peru in the period 2007-2008, in order to avoid proliferation of contaminants and then to carry out remediation works. Polluted sites were identified by categories according to the risk levels, for human population, environment and others. The lots 8 and 7 in the Corrientes river were chosen because their significance and greater consideration. The qualitative-quantitative and exploratory methods were utilized, based on two field trips, on July 2007 and on January 2008; hence, areas with the highest risk level were identified.Water bodies and contaminated soils were evaluated, the chemical and physical analysis were carried out following standardized methods proposed by EPA, and the monitoring was carried out following environmental legislation recommendations. Categories identified area:...