CASTELSARDO_LOC_LUNGOMARE_ANGLONA Wastewater Treatment Plant, Lu Bagnu, Sardinia

CASTELSARDO_LOC_LUNGOMARE_ANGLONA is a wastewater treatment plant located in Lu Bagnu, a frazione of Castelsardo in the province of Sassari, Sardinia, Italy. The plant serves a population of 6,355, placing it in the small-to-medium agglomeration category under Italian and EU regulations. As an Italian plant, it operates under the EU Urban Waste Water Treatment Directive 91/271/EEC, which requires secondary treatment for agglomerations of this size discharging into coastal waters. The regulatory framework ensures that treated effluent meets standards for biological oxygen demand and suspended solids. The plant is located within 50 km of the coast, discharging into the Mediterranean Sea via local watercourses. Its operations are critical for protecting the coastal environment of the Gulf of Asinara, which supports diverse marine life and is an important area for tourism and fisheries in northern Sardinia.

The plant's treated effluent ultimately reaches the Mediterranean Sea near the Gulf of Asinara, a coastal area known for its clear waters and marine biodiversity. The local watershed includes small streams draining the hills of Castelsardo, which flow into the sea. The discharge contributes to nutrient loads in coastal waters, making effective treatment essential to prevent eutrophication and protect seagrass meadows and fish habitats.