GUBBIO_RAGGIO Wastewater Treatment Plant, Gubbio, Umbria, Italy

GUBBIO_RAGGIO is a wastewater treatment plant located in the Belardello area near Gubbio, in the Umbria region of central Italy. The plant serves a population of approximately 2,903 people and has a designed capacity of 4,600 cubic meters per day, with a discharge volume of 574.69 cubic meters per day. The plant employs advanced treatment processes, which go beyond the secondary treatment required by the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this size. This level of treatment is typically implemented in sensitive areas to reduce nutrient loads and protect receiving water bodies. The treated effluent is discharged into local watercourses that eventually drain into the Tiber River basin, which flows through Umbria and Lazio before reaching the Tyrrhenian Sea. The plant plays a key role in safeguarding the water quality of the Tiber watershed and the downstream marine environment.

The plant discharges into the Tiber River basin, which flows through central Italy and empties into the Tyrrhenian Sea near Rome. The Tiber watershed supports diverse aquatic life and is an important ecological corridor. Advanced treatment at this plant helps reduce nutrient pollution, protecting downstream habitats and the coastal marine ecosystem.