In particular the monitoring of sites involves the following levels of analysis: > mapping of production sites in potential water scar city areas, in which the average value of renewable water resources per head is lower than the refer ence value set by the FAO (mapping is done using the Global Water Tool of the World Business Council for Sustainable Development); > identification of “critical”production sites, i.e. those with a “Water Scarcity Area” with water supply sole ly from fresh water; > more efficient management of water aimed at maxi mizing the supply from effluents and sea water; > monitoring of the climate and vegetation data for each site.