ALATRI_CONTRADA_PORPURO Wastewater Treatment Plant, Alatri, Lazio, Italy

ALATRI_CONTRADA_PORPURO is a wastewater treatment facility located in Alatri, a town in the Lazio region of central Italy. The plant serves a population of approximately 4,000 residents, making it a small-scale municipal treatment works. It is situated inland, away from coastal areas, and its operations are integral to local sanitation and water quality management. The plant employs advanced treatment processes, which go beyond the secondary treatment standard required by the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this size. With a designed capacity of 4,000 cubic meters per day and a reported discharge volume of about 792 cubic meters per day, the facility is well-sized to handle the community's wastewater. It operates under Italy's national implementation of EU directives, ensuring compliance with stringent effluent standards. The treated effluent is discharged into the local watershed, which ultimately drains into the Tyrrhenian Sea via the Sacco River and other tributaries. The plant plays a key role in protecting downstream water bodies from pollution, supporting aquatic life and maintaining the ecological health of the region's freshwater systems.

The plant discharges into the local watershed, part of the Tiber River basin, which flows through Lazio and into the Tyrrhenian Sea. This area supports diverse aquatic habitats and is important for regional biodiversity. The advanced treatment helps minimize nutrient loading and protects downstream ecosystems from eutrophication.