DEP_COM_CARSOLESE Wastewater Treatment Plant, San Cesareo, Lazio, Italy

DEP_COM_CARSOLESE is an advanced wastewater treatment plant located in San Cesareo, in the Lazio region of Italy. The plant serves a population of approximately 4,500 people and has a design capacity of 5,000 cubic meters per day, with an average discharge volume of 890.84 cubic meters per day. It is situated inland, more than 10 kilometers from the coast, but within 50 kilometers of the Tyrrhenian Sea. 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 agglomerations discharging into sensitive areas. For a plant serving 4,500 people, secondary treatment is the minimum standard, but the advanced level indicates compliance with stricter local or regional requirements. The treated effluent is discharged into local watercourses that eventually drain into the Tyrrhenian Sea. The plant plays a key role in protecting the water quality of the Tiber River basin and the coastal environment of the Lazio region. By removing pollutants before discharge, it helps safeguard aquatic ecosystems and supports downstream uses such as irrigation and recreation.

The plant discharges into local streams that are part of the Tiber River basin, which flows into the Tyrrhenian Sea near Rome. The downstream environment includes ecologically sensitive coastal zones and marine habitats. Advanced treatment reduces nutrient loading, which helps prevent eutrophication in the Tyrrhenian Sea and protects biodiversity in the region's rivers and coastal waters.