Since the massive exploitation of the Val d'Agri (Basilicata-Italy) oilfield has started, a lot of environmental pollution accidents have occurred in the same region. This research takes as starting point the heavy accident occurred in the year 2000, when 15,150 kg of coal oil were spilt all over the Agri river bed and the surrounding fields. In that particular case, the environmental reclamation was achieved by the removal of the polluted soil and its dump-storage. This research work suggests an environmental restoration which is an alternative solution to what has been practiced before, and it is achieved by the so called bioremediation methods, particularly the "landfarming on site" technique.