COSTA DELLA MADONNA Wastewater Treatment Plant, Poggio Corese, Lazio

COSTA DELLA MADONNA is an advanced wastewater treatment plant located in Poggio Corese, a frazione of Scandriglia in the province of Rieti, Lazio, Italy. The plant serves a population of 2,500 and has a designed capacity of 3,000 cubic meters per day, with an actual discharge volume of 494.91 cubic meters per day, indicating significant spare capacity. The plant employs advanced treatment processes, which go beyond secondary treatment to remove nutrients and other pollutants. As an Italian facility, it operates under the EU Urban Waste Water Treatment Directive 91/271/EEC, which requires advanced treatment for sensitive areas and agglomerations of this scale. The plant's compliance with these standards ensures high-quality effluent. The treated wastewater is discharged into the local watershed, which ultimately drains into the Tiber River basin and then into the Tyrrhenian Sea. The plant plays a crucial role in protecting the water quality of the Tiber River and its downstream ecosystems, supporting aquatic life and preventing eutrophication in coastal waters.

The plant discharges into the Tiber River basin, which flows through central Italy before reaching the Tyrrhenian Sea near Rome. The Tiber supports diverse aquatic life and is an important migratory corridor for fish. Advanced treatment at this plant helps reduce nutrient loads, protecting downstream water quality and the sensitive coastal environment of the Tyrrhenian Sea.