DEP_COM_CAPOLUOGO Wastewater Treatment Plant, San Gregorio da Sassola, Lazio

DEP_COM_CAPOLUOGO is an advanced wastewater treatment plant located in San Gregorio da Sassola, a town in the Lazio region of Italy. The plant serves a population of approximately 2,100 people, reflecting its role in managing municipal wastewater for this small agglomeration within the Metropolitan City of Rome Capital. As an advanced treatment facility, the plant goes beyond secondary treatment to remove nutrients and other pollutants, ensuring high-quality effluent. This level of treatment is typical for plants discharging into sensitive areas under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires tertiary treatment for agglomerations above 10,000 population equivalent in sensitive zones. Although the plant serves fewer than 10,000 people, its advanced treatment status indicates a commitment to environmental protection. The treated effluent from the plant is discharged into local watercourses that eventually drain toward the Tyrrhenian Sea. The plant's inland location, more than 10 km from the coast, reduces direct marine impact but still plays a crucial role in protecting downstream aquatic ecosystems and the regional water quality of the Tiber River basin.

The plant discharges into local streams that flow into the Tiber River basin, which ultimately reaches the Tyrrhenian Sea. The Tiber River supports diverse aquatic life and is an important water resource for central Italy. Advanced treatment at this plant helps reduce nutrient loading, protecting downstream ecosystems from eutrophication and maintaining water quality for both ecological and human uses.