NEFFES PELLEAUTIER Wastewater Treatment Plant, Neffes, France

NEFFES PELLEAUTIER is a municipal wastewater treatment plant located in Neffes, a commune in the Hautes-Alpes department of the Provence-Alpes-Côte d'Azur region in southeastern France. The plant serves a population of 2,930 and has a designed capacity of 2,700 cubic meters per day, with an average discharge volume of 522.71 cubic meters per day. As a secondary treatment facility, the plant provides biological treatment to reduce organic matter and suspended solids. Under the EU Urban Waste Water Treatment Directive (91/271/EEC), agglomerations with a population equivalent (PE) between 2,000 and 10,000 are generally required to have secondary treatment. With a population served of 2,930, this plant meets the directive's requirements for its size class. The plant discharges treated effluent into the local watershed, which ultimately drains into the Durance River, a major tributary of the Rhône River. The Rhône flows into the Mediterranean Sea. The plant's location inland and away from the coast reduces direct marine impact, but its discharge contributes to the water quality of the Durance and Rhône river systems, which support diverse aquatic life and are used for irrigation and recreation.

The plant discharges into the Durance River basin, which flows into the Rhône River and eventually the Mediterranean Sea. The Durance is a significant river in the region, supporting agricultural irrigation and hydroelectric power generation. The plant's secondary treatment helps protect the river's ecological health by reducing organic pollution and nutrient loads, which is critical for maintaining water quality in this semi-arid Mediterranean climate.