Pianopoli Spranico Wastewater Treatment Plant, Calabria, Italy

Pianopoli Spranico is a municipal wastewater treatment plant located in Pianopoli, a town in the province of Catanzaro, Calabria, Italy. The plant serves a population of approximately 2,581, classifying it as a small agglomeration under Italian and EU regulations. It is situated near the Tyrrhenian Sea coast, within 10 km of the shoreline. The plant provides secondary treatment, which is the minimum standard required by the EU Urban Waste Water Treatment Directive (91/271/EEC) for freshwater discharges from agglomerations of this size. The designed capacity is 2,400 m³/day, and the reported discharge volume is 510.95 m³/day, indicating a utilization rate well below capacity. The treated effluent is discharged into a receiving water body that ultimately flows to the Tyrrhenian Sea. The coastal location means the discharge may affect local marine water quality and nearshore ecosystems. The plant plays a role in protecting the regional coastal environment from untreated wastewater, supporting bathing water quality and marine biodiversity along the Calabrian coast.

The plant discharges into a watercourse that drains to the Tyrrhenian Sea, a basin of the Mediterranean Sea. The coastal waters near Pianopoli support diverse marine life and are used for recreation and fishing. The secondary treatment level helps reduce organic load and suspended solids, but nutrient removal is not required for this scale of plant under current EU directives, which may contribute to local eutrophication risks in the coastal zone.