Pont de Buis Wastewater Treatment Plant, Pont-de-Buis-lès-Quimerch, Bretagne

Pont de Buis is a wastewater treatment plant located in Pont-de-Buis-lès-Quimerch, in the Finistère department of Bretagne, France. The plant serves a population equivalent of 7,800 and has a designed capacity of 1.00, indicating it is a small to medium-scale facility. It is situated inland, more than 50 km from the coast, and discharges into the local watershed. As a French plant, Pont de Buis operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations of this size. The directive also mandates more advanced treatment if the receiving waters are sensitive. The regulatory framework ensures compliance with European standards for wastewater treatment. The plant's treated effluent likely flows into the Aulne River or its tributaries, which drain into the Rade de Brest and ultimately the Atlantic Ocean. The Aulne River supports diverse aquatic life and is part of the regional ecological network. The plant plays a key role in protecting water quality in this sensitive coastal watershed.

The plant discharges into the Aulne River basin, which flows into the Rade de Brest, a large coastal estuary in Brittany. The Rade de Brest is an ecologically important area that supports diverse marine life and migratory fish species. The plant's operations help protect this downstream environment from nutrient pollution and other contaminants, contributing to the health of the estuary and the adjacent Atlantic coastal zone.