Lannion Wastewater Treatment Plant - Serving Lannion, Brittany, France

The Lannion wastewater treatment plant serves the city of Lannion in the Brittany region of France, with a population equivalent of around 32,391. The facility is situated near the coast, reflecting the region's maritime environment. As a French municipal plant, it is part of the national wastewater infrastructure managed under the EU Urban Waste Water Treatment Directive (UWWTD). Under the EU UWWTD, agglomerations with a population equivalent between 10,000 and 150,000 are classified as medium agglomerations and are required to provide secondary treatment as a minimum. For plants in sensitive areas, such as coastal zones, tertiary treatment may be mandated to reduce nutrient loads and protect marine ecosystems. The plant discharges treated effluent into the local watershed, which ultimately drains into the English Channel. The receiving environment includes coastal waters that support diverse marine life and are important for local fisheries and tourism. The plant's proximity to the coast underscores the need for effective treatment to minimize nutrient and pollutant inputs into sensitive marine habitats.

The Lannion plant discharges into the local river system that flows into the English Channel near the Brittany coast. This coastal area supports diverse marine ecosystems, including seagrass beds and shellfish populations, which are sensitive to nutrient enrichment and pollution. Effective wastewater treatment is critical to maintaining water quality in this ecologically important region.