USSANA_LOC_SU_PARDU Wastewater Treatment Plant, Monastir, Sardinia

USSANA_LOC_SU_PARDU is an advanced wastewater treatment plant located in Monastir, in the Sardinia region of Italy. The facility serves a population of around 3,763 people, reflecting its role as a small-scale municipal treatment infrastructure in the Mediterranean island context. The plant provides advanced treatment, which goes 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 5,507 m³/day and a reported discharge volume of 744.94 m³/day, the facility operates well below its capacity, indicating potential for future growth or seasonal demand. The advanced level suggests nutrient removal or other tertiary processes. The treated effluent is discharged into the local watershed, which ultimately drains into the Mediterranean Sea. Sardinia's water bodies support diverse aquatic life and are important for regional biodiversity. The plant's inland location (more than 10 km from the coast) reduces direct marine impact, but its proximity to the Mediterranean basin means proper treatment is essential to protect coastal ecosystems.

The plant discharges into the local drainage network that flows toward the Mediterranean Sea, specifically the Gulf of Cagliari. This coastal area supports seagrass meadows and fish nurseries, making it ecologically sensitive. The advanced treatment helps minimize nutrient loading and protects downstream marine habitats from eutrophication.