The fresh water was to come from Tarragona in southern Catalonia, Marseille and Almeria — one of the driest areas of southern Spain.
Bhí an fionnuisce seo le fáil ó Tarragona i ndeisceart na Catalóine, Marseille agus Almeria — ceann de na limistéir is tirime i ndeisceart na Spáinne.