LOC_S_ANTONIO Wastewater Treatment Plant, Borgorose, Lazio, Italy

LOC_S_ANTONIO is an advanced wastewater treatment plant located in Borgorose, in the Lazio region of Italy. The facility serves a small population of 480 people, reflecting its role in a rural or small-town setting. The plant's designed capacity is 800 m³/day, and it currently discharges approximately 95 m³/day of treated effluent. 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 small agglomerations under 2,000 population equivalent, the directive allows appropriate treatment, but Italy often implements advanced treatment in sensitive areas. The plant's advanced level indicates a high degree of nutrient removal or additional purification steps. The treated wastewater is discharged into the local water system, which ultimately drains into the Salto River, a tributary of the Velino River. The Velino flows into the Nera River, which joins the Tiber River before reaching the Tyrrhenian Sea. The plant's advanced treatment helps protect the downstream aquatic environment, including the Tiber basin, which supports diverse ecosystems and is important for regional water quality.

The plant discharges into the Salto River, a tributary of the Velino River, which flows into the Nera and then the Tiber River, ultimately reaching the Tyrrhenian Sea. The Tiber basin is ecologically significant, supporting diverse aquatic life and providing water for agriculture and urban areas. Advanced treatment at this plant helps reduce nutrient loading and protects downstream habitats from eutrophication.