PLEUCADEUC Vieille Ville Wastewater Treatment Plant, Pleucadeuc, Brittany

PLEUCADEUC Vieille Ville is a wastewater treatment plant located in Pleucadeuc, in the Brittany region of France. The facility serves a population equivalent of around 26,000, classifying it as a medium-sized agglomeration under EU regulations. As a French 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 freshwater. The plant's designed capacity is 1.00 (likely in thousands of cubic meters per day), indicating a scale appropriate for its service population. The treated effluent is discharged into local waterways that ultimately drain into the Atlantic Ocean via the Vilaine River basin. This region supports diverse aquatic life and contributes to the ecological health of the Morbihan Gulf, an important coastal area.

The plant discharges into the Vilaine River basin, which flows into the Atlantic Ocean via the Morbihan Gulf. This coastal zone supports diverse marine and estuarine habitats, including nurseries for fish and migratory bird populations. The region's watershed is ecologically sensitive, requiring effective nutrient removal to prevent eutrophication in downstream waters.