Impianto C.da S. Euplio Wastewater Treatment Plant, Francavilla di Sicilia, Sicily

Impianto C.da S. Euplio is a municipal wastewater treatment plant located in Contrada Arancia, Francavilla di Sicilia, in the province of Messina, Sicily, Italy. The plant serves a population of 4,140 and is part of the region's wastewater infrastructure for small agglomerations. The plant provides secondary treatment, which is the standard biological treatment required under the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this size. It has a designed capacity of 4,800 m³/day and currently discharges an average of 819.57 m³/day, indicating operational capacity well below design. The treated effluent is discharged into the local environment, ultimately reaching the Ionian Sea via the Alcantara River basin. The plant's proximity to the coast (within 10 km) means its discharge can affect coastal water quality and the sensitive marine ecosystem of the Ionian Sea.

The plant discharges into the Alcantara River basin, which flows into the Ionian Sea near the eastern coast of Sicily. The Ionian Sea is a deep marine basin supporting diverse marine life, including important fish stocks and migratory species. The coastal zone near Francavilla di Sicilia features rocky shores and sandy beaches, and the area is ecologically sensitive due to its biodiversity and tourism value. Proper treatment is essential to prevent nutrient enrichment and protect the marine environment.