COMBOURG Wastewater Treatment Plant, Combourg, Brittany

The COMBOURG wastewater treatment plant is located in Combourg, a town in the Ille-et-Vilaine department of Brittany, France. Serving a population of 4,400, the plant is part of the municipal infrastructure managed under French water regulations. Its advanced treatment level ensures high-quality effluent, meeting the requirements of the EU Urban Waste Water Treatment Directive for sensitive areas. The plant has a designed capacity of 6,000 cubic meters per day and currently treats an average daily volume of 784.95 cubic meters, indicating ample reserve capacity. As an advanced treatment facility, it likely incorporates nutrient removal processes to protect downstream water bodies from eutrophication. The plant operates under the French regulatory framework, which transposes EU directives and mandates strict discharge standards. The treated effluent is discharged into local rivers that flow through the Brittany countryside, eventually reaching the English Channel via the Rance River or other coastal outlets. This region is ecologically sensitive, supporting diverse aquatic life and serving as a habitat for migratory fish species. The plant's advanced treatment helps preserve water quality in these downstream environments.

The plant discharges into the local river network within the Rance basin, which flows northward into the English Channel near Saint-Malo. This coastal zone supports diverse marine life and is an important area for migratory fish such as salmon and sea trout. The advanced treatment at COMBOURG reduces nutrient loads, helping to prevent eutrophication in the downstream estuary and coastal waters.