Domus De Maria Loc S. Arcu De Pissettu Chia Wastewater Treatment Plant, Sardinia

Domus De Maria Loc S. Arcu De Pissettu Chia is an advanced wastewater treatment plant located along Strada Statale 195 Sulcitana in Domus De Maria, in the Sardinia region of Italy. The plant serves a population of 2,931 and has a designed capacity of 3,000 cubic meters per day, with an actual discharge volume of 580.23 cubic meters per day. The plant employs advanced treatment processes, which go beyond secondary treatment to remove nutrients and other pollutants. As an Italian facility, it operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires advanced treatment for sensitive areas. The plant's coastal location suggests it likely discharges into a sensitive marine environment. The treated effluent from the plant is discharged into the coastal waters of the Mediterranean Sea near Chia, a popular beach area. This discharge supports the local marine ecosystem and tourism. The plant plays a key role in protecting the water quality of the Gulf of Cagliari and the surrounding coastal environment.

The plant discharges into the Mediterranean Sea near Chia, on the southern coast of Sardinia. The receiving waters are part of the Gulf of Cagliari, a semi-enclosed basin with important seagrass meadows and diverse marine life. The area is ecologically sensitive due to its tourism value and the presence of protected species. Advanced treatment helps minimize nutrient loading and protect water quality.