AREGNO Wastewater Treatment Plant, Algajola, Corse, France

AREGNO is a wastewater treatment plant located in Algajola, on the island of Corsica (Corse), France. It serves a population of approximately 8,472 people, classifying it as a medium-sized agglomeration under the EU Urban Waste Water Treatment Directive (UWWTD). The plant is situated near the coast, highlighting its importance in protecting coastal waters. As a French facility, AREGNO operates under the EU UWWTD (91/271/EEC), which requires secondary treatment for agglomerations of this size discharging into coastal waters. The regulatory framework ensures that the plant meets standards for reducing pollutants before discharge. The plant's receiving water body is likely a coastal or marine environment, given its proximity to the Mediterranean Sea. The local watershed includes small rivers draining the Corsican mountains, and the plant plays a key role in preventing nutrient and pathogen pollution in the sensitive marine ecosystem. Downstream, the treated effluent contributes to the health of the Mediterranean, supporting tourism and biodiversity.

AREGNO discharges into the Mediterranean Sea, likely via a coastal outfall or a small river draining the Corsican mountains. The local watershed is characterized by steep terrain and seasonal rainfall, with the plant protecting downstream marine habitats that support diverse aquatic life, including seagrass meadows and fish populations. The coastal zone is ecologically sensitive, and the plant's treatment helps maintain water quality for tourism and fisheries.