TODI_CASCIANELLA Wastewater Treatment Plant, Todi, Umbria, Italy

The TODI_CASCIANELLA wastewater treatment plant is located in Todi, a town in the Umbria region of central Italy. The facility serves a population of approximately 2,464 people and operates with 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. With a designed capacity of 25,000 m³/day and an actual discharge volume of 487.78 m³/day, the plant operates well below its capacity, indicating significant headroom for future growth or seasonal variations. The plant is situated inland, more than 50 km from the coast, and its treated effluent is discharged into the local watershed. The receiving water body is part of the Tiber River basin, which flows through Umbria and Lazio before reaching the Tyrrhenian Sea near Rome. The plant plays a key role in protecting the water quality of this important river system, which supports diverse aquatic life and is used for irrigation and recreation downstream.

The plant discharges into the Tiber River basin, which drains into the Tyrrhenian Sea. The Tiber is the third-longest river in Italy and supports a variety of fish species and riparian habitats. Downstream, the river passes through agricultural areas and the city of Rome, where water quality is critical for both ecological health and human use. The plant's secondary treatment helps reduce organic pollutants and nutrients, mitigating eutrophication risks in the coastal zone.