LOC_OLIVELLA Wastewater Treatment Plant, Sant'Elia Fiumerapido, Lazio, Italy

LOC_OLIVELLA is an advanced wastewater treatment plant located in Sant'Elia Fiumerapido, in the Lazio region of Italy. The plant serves a small community of 800 people, reflecting its role in managing local domestic wastewater in a rural or suburban setting. The plant employs advanced treatment processes, which go beyond secondary treatment to remove nutrients and other pollutants. 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 over 10,000 population equivalent in sensitive zones. Although the plant serves fewer than 10,000 people, the advanced treatment indicates a commitment to high effluent quality. The treated wastewater is discharged into the local watershed, which ultimately drains into the Garigliano River and then into the Tyrrhenian Sea. The plant's location within 50 km of the coast means its discharge contributes to the health of coastal waters. Advanced treatment helps protect downstream aquatic ecosystems and supports the ecological quality of the receiving water bodies.

The plant discharges into the local drainage basin that feeds the Garigliano River, which flows into the Tyrrhenian Sea. This coastal area supports diverse marine life and is important for regional biodiversity. Advanced treatment at the plant helps minimize nutrient loading, reducing the risk of eutrophication in the river and coastal waters.