Padria Loc Sa Pedraia Wastewater Treatment Plant, Padria, Sardinia

Padria Loc Sa Pedraia is a municipal wastewater treatment plant located in Padria, a town in the province of Sassari on the island of Sardinia, Italy. The plant serves a population of approximately 5,009 people, reflecting a medium-sized agglomeration typical of inland towns in the region. The plant provides secondary treatment, which is the standard biological treatment required under the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this size. The designed capacity of 6,500 m³/day indicates the plant is sized to handle peak flows, while the current discharge volume of 991.60 m³/day suggests operational capacity well within design limits. The treated effluent is discharged into local watercourses that flow toward the western coast of Sardinia, ultimately reaching the Mediterranean Sea. The plant plays a key role in protecting the island's sensitive aquatic ecosystems and coastal waters from nutrient pollution.

The plant discharges into inland streams that drain into the Mediterranean Sea near the western coast of Sardinia. The region's watershed supports diverse aquatic life and is important for local agriculture and tourism. Proper wastewater treatment helps prevent eutrophication and maintains water quality in the coastal zone, which is ecologically sensitive due to its marine biodiversity.