LUZ ST SAUVEUR Wastewater Treatment Plant, Sassis, Occitanie

LUZ ST SAUVEUR is a wastewater treatment plant located in Sassis, a commune in the Hautes-Pyrénées department of Occitanie, southern France. The plant serves a population of around 8,700 people, placing it in the small-to-medium agglomeration category under EU classification. As a French facility, the plant is subject to 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 treatment process and capacity details are not publicly available, but the regulatory framework ensures compliance with national standards set by the French Ministry of Ecological Transition. The plant's treated effluent is discharged into the local watershed, which ultimately drains into the Adour River basin and then into the Bay of Biscay (Atlantic Ocean). The receiving water bodies support diverse aquatic life and are important for regional water quality management.

The plant discharges into the Gave de Pau river system, a tributary of the Adour River, which flows into the Bay of Biscay. This watershed supports diverse aquatic ecosystems, including fish populations such as salmon and trout. The region is also near the Pyrenees National Park, an ecologically sensitive area with high biodiversity value.