DEP_COM_MONTE_POZZOLANA Wastewater Treatment Plant, Castelnuovo di Porto, Lazio

DEP_COM_MONTE_POZZOLANA is an advanced wastewater treatment plant located in Castelnuovo di Porto, a town in the Metropolitan City of Rome, Lazio region, Italy. The plant serves a small population of 750 residents, reflecting its role in a rural or peri-urban setting. It has a designed capacity of 1,000 cubic meters per day, with an actual discharge volume of 148.47 cubic meters, indicating low utilization relative to capacity. As an advanced treatment facility, the plant goes beyond secondary treatment to remove nutrients and other pollutants, aligning with the requirements of the EU Urban Waste Water Treatment Directive (91/271/EEC) for sensitive areas. Advanced treatment typically includes tertiary filtration, phosphorus removal, or nitrogen reduction. The plant operates under Italy's implementation of the directive, which mandates appropriate treatment levels based on receiving water sensitivity. The treated effluent is discharged into local watercourses that ultimately drain into the Tiber River basin, which flows through Rome and into the Tyrrhenian Sea. The plant's location about 30 km north of Rome places it within the Tiber watershed, contributing to the protection of downstream aquatic ecosystems and the coastal marine environment.

The plant discharges into the Tiber River basin, which flows southward through Rome and into the Tyrrhenian Sea. The Tiber is the third-longest river in Italy and supports diverse aquatic life, including fish species such as barbel and eel. The downstream environment includes the Tiber Delta, an ecologically sensitive area that provides habitat for migratory birds and marine species. Advanced treatment at this plant helps reduce nutrient loading, protecting the river and coastal waters from eutrophication.