Impianto C da Poggio Rosso Sottano Wastewater Treatment Plant, Biancavilla, Sicily

Impianto C da Poggio Rosso Sottano is a wastewater treatment plant located in Biancavilla, a town in the province of Catania, Sicily, Italy. The plant serves a population of approximately 28,500, placing it in the medium agglomeration category under Italian and EU regulations. As a plant in Italy, it operates under the EU Urban Waste Water Treatment Directive 91/271/EEC, which requires secondary treatment for agglomerations of this size. It is assumed to be active given its inclusion in the directory. The plant discharges into the local watershed, which ultimately drains into the Ionian Sea via the Simeto River basin. The Simeto River is the largest river in Sicily and supports diverse aquatic life, including endemic fish species. The plant's location inland, more than 50 km from the coast, reduces direct marine impact, but its effluent contributes to the overall water quality of the Simeto basin.

The plant is located in the Simeto River basin, which flows into the Ionian Sea near Catania. The Simeto River is ecologically significant, supporting a variety of aquatic species and providing irrigation water for agriculture. Downstream, the river delta and coastal areas are important for migratory birds and marine life. The plant's discharge, while inland, affects the water quality of this sensitive watershed.