Crotone - Cassano - Cerchiara

From the 1920s to the 1990s three plants worked north of Crotone: Pertusola, which produced zinc by roasting zinc-sulphide ores; Fosfotec, which made phosphoric acid; and the former Agricoltura works, which made nitrogen and phosphate fertilisers, nitric acid, sulphuric acid and oleum. Part of their residues was piled along the coast, in what are now the former Pertusola and Fosfotec «seafront landfills».

In the 1990s Pertusola's cupola slag was mixed with aggregate to make a material called Catalysed Hydraulic Conglomerate (CIC), then used for embankments, road sub-bases and yards, some of them inside the SIN perimeter. For this reason the perimeter was extended in 2017 to the areas where CIC is present (about 14 hectares).

In soils, metals exceed thresholds widely and at depth, and total phosphorus reaches high concentrations. Groundwater holds metals, inorganic compounds and chlorinated aliphatics. The SIN also includes the Tufolo-Farina landfill south of the town, an archaeological area of about 80 hectares and, in the province of Cosenza, three dumps totalling 1.8 hectares.