Pont-de-Salars Wastewater Treatment Plant - Occitanie, France

The Pont-de-Salars wastewater treatment plant is located in Pont-de-Salars, a commune in the Aveyron department of Occitanie, southern France. It serves a population of approximately 2,862 residents, classifying it as a small agglomeration under French and EU regulations. The plant employs advanced treatment processes, ensuring high-quality effluent. With a designed capacity of 3,800 m³/day and an average daily discharge of 510.58 m³, it operates well below capacity. As a French facility, it complies with the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment as a minimum and advanced treatment in sensitive areas. The treated effluent is discharged into the local watershed, which ultimately drains into the Tarn River and then the Garonne River, flowing into the Atlantic Ocean. The plant plays a key role in protecting the region's water quality and supporting downstream aquatic ecosystems.

The plant discharges into the local watershed, which feeds into the Tarn River, a major tributary of the Garonne River. The Garonne flows into the Gironde estuary and then the Atlantic Ocean. This region supports diverse aquatic life, including fish species such as salmon and trout, and the plant's advanced treatment helps maintain water quality in this ecologically sensitive area.