PASSO CORESE Wastewater Treatment Plant, Fara in Sabina, Lazio, Italy

PASSO CORESE is an advanced wastewater treatment plant located in Fara in Sabina, in the Lazio region of Italy. The facility serves a population of approximately 4,500 residents, with a designed capacity of 4,500 m³/day and a discharge volume of 890.84 m³/day. It is situated inland, away from coastal areas, and treats municipal wastewater from the local community. As an advanced treatment plant, PASSO CORESE goes beyond secondary treatment to remove nutrients and other pollutants, ensuring high-quality effluent. Italy implements the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires advanced (tertiary) treatment for agglomerations over 10,000 population equivalent in sensitive areas. Although this plant serves fewer than 10,000 people, its advanced treatment level indicates a commitment to protecting local water quality. The treated effluent from PASSO CORESE is discharged into a local watercourse that eventually flows into the Tiber River basin. The Tiber River is the third-longest river in Italy and drains into the Tyrrhenian Sea. The plant's advanced treatment helps safeguard the ecological health of the Tiber basin and downstream coastal waters.

PASSO CORESE discharges treated wastewater into a tributary of the Tiber River, which flows through central Italy before entering the Tyrrhenian Sea near Rome. The Tiber basin supports diverse aquatic life and is an important water resource for agriculture and urban areas. Advanced treatment at this plant reduces nutrient loads, helping to prevent eutrophication in the river and its coastal receiving waters.