LOC_S_CROCE Wastewater Treatment Plant, Frangelini, Lazio, Italy

LOC_S_CROCE is an advanced wastewater treatment plant located in the Frangelini area of Magliano Sabina, in the Lazio region of Italy. The plant serves a small population of 800 residents, reflecting its role in a rural or peri-urban setting. As part of Italy's wastewater infrastructure, it operates under the European Union's Urban Waste Water Treatment Directive (91/271/EEC), which sets standards for treatment based on population equivalents and receiving water sensitivity. The plant provides advanced treatment, which goes beyond the secondary treatment required by the EU directive for agglomerations under 10,000 population equivalents. This level of treatment typically includes nutrient removal (nitrogen and phosphorus) to protect sensitive water bodies. The plant has a designed capacity of 800 cubic meters per day and currently discharges an average of 158.37 cubic meters per day, indicating significant spare capacity. The treated effluent is discharged into local watercourses that eventually drain into the Tiber River basin, which flows through Lazio and into the Tyrrhenian Sea. The advanced treatment helps protect the Tiber River and its downstream ecosystems, including the coastal marine environment, from nutrient pollution and other contaminants. The plant's inland location, over 50 km from the coast, reduces direct marine impact but still contributes to the overall health of the Tiber watershed.

The plant discharges into local streams that are part of the Tiber River basin. The Tiber flows through central Italy, including Rome, before emptying into the Tyrrhenian Sea. This watershed supports diverse aquatic life and is important for regional water resources. Advanced treatment at this plant helps reduce nutrient loads that could otherwise contribute to eutrophication in the Tiber and coastal waters.