DEP_COM_VIGNALETTI Wastewater Treatment Plant, Sant'Angelo Romano, Lazio

DEP_COM_VIGNALETTI is an advanced wastewater treatment plant located in Osteria Nuova, Sant'Angelo Romano, in the Lazio region of Italy. The plant serves a population of approximately 2,800 people and has a designed capacity of 3,000 cubic meters per day, with a current discharge volume of 554.30 cubic meters per day. As an advanced treatment facility, it 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. The plant's scale places it in the small agglomeration category, for which the directive mandates appropriate treatment to protect receiving waters. The plant discharges treated wastewater into local watercourses that ultimately drain into the Tyrrhenian Sea via the Tiber River basin. Its advanced treatment helps safeguard the ecological health of downstream waters, supporting aquatic life and reducing nutrient loading in the Mediterranean coastal environment.

The plant's treated effluent flows into local streams within the Tiber River basin, which drains into the Tyrrhenian Sea. This coastal region supports diverse marine and coastal ecosystems, including seagrass meadows and fish nurseries. Advanced treatment at this plant helps minimize nutrient pollution, protecting water quality in the Tiber estuary and adjacent marine habitats.