L HERMITAGE Wastewater Treatment Plant, La Chapelle-Thouarault, Brittany

L HERMITAGE is an advanced wastewater treatment plant located in La Chapelle-Thouarault, in the Brittany region of France. The facility serves a population of approximately 4,600 residents, reflecting its role as a medium-sized municipal treatment works within the local infrastructure. The plant employs advanced treatment processes, which go beyond the secondary treatment standards required by the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this size. With a designed capacity of 7,000 m³/day and a current discharge volume of 820.63 m³/day, the plant operates well within its capacity, ensuring effective treatment of incoming wastewater. The treated effluent is discharged into the local watershed, which ultimately drains into the Atlantic Ocean via the Brittany coastal river system. The plant's advanced treatment level helps protect downstream water quality and supports the ecological health of the region's rivers and coastal environments.

The plant discharges into the local watershed within the Brittany region, which flows into the Atlantic Ocean. The downstream environment includes sensitive coastal ecosystems that benefit from the advanced treatment level, which reduces nutrient loading and protects aquatic life. The area supports diverse freshwater and marine habitats, making effective wastewater treatment crucial for maintaining water quality.