In 2006, cooperation between Barcelona Port Authority and the Catalan Waste Agency led to the approval of the Guide for the prevention of soil contamination resulting from potentially polluting activities in the Port of Barcelona. The guide sets out the basic lines of action to be followed by port activities to prevent and reduce the risk of contamination of soil and groundwater in the public port area.

Soil remediation actions for contaminated sites in the port area can be undertaken by the Port Authority upon completion of the concession period for occupation of port land by an activity, or actions can be taken by the terminals and concessionaires during the concession period.