QUARANTE bourg Wastewater Treatment Plant, Cruzy, Occitanie, France

QUARANTE bourg is a municipal wastewater treatment plant located in Cruzy, a commune in the Hérault department of Occitanie, southern France. The plant serves a population of 1,600 and is designed with a capacity of 3,300 m³/day, currently discharging 285.44 m³/day of treated water. The plant employs advanced treatment processes, which go beyond secondary treatment to remove nutrients and other pollutants. Under the EU Urban Waste Water Treatment Directive (91/271/EEC), France requires advanced treatment for agglomerations discharging into sensitive areas. Although the specific receiving water body is not named, the plant's advanced level suggests it protects a sensitive environment. The treated effluent from QUARANTE bourg flows into the local river system, which drains into the Mediterranean Sea via the Orb or Aude river basins. This region supports diverse aquatic life and is important for migratory fish. The plant's advanced treatment helps minimize nutrient loading and protects downstream water quality.

The plant discharges into the Hérault department's river network, which ultimately flows into the Mediterranean Sea. The region's watershed supports diverse aquatic ecosystems, including fish species that rely on clean water for spawning. Advanced treatment at this plant reduces nutrient pollution, safeguarding downstream habitats and coastal water quality.