LACELLE Wastewater Treatment Plant, La Celle, Var, France

LACELLE is a municipal wastewater treatment plant located in La Celle, within the Var department of Provence-Alpes-Côte d'Azur, France. The facility serves a population of approximately 3,126 residents and operates with a designed capacity of 2,000 m³/day, currently treating an average flow of 557.67 m³/day. As a secondary treatment plant, LACELLE meets the standard requirements of the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations under 10,000 population equivalent. Secondary treatment involves biological processes to reduce organic matter and suspended solids, ensuring compliance with European effluent standards before discharge. The treated effluent is discharged into the local watershed, which ultimately drains into the Mediterranean Sea via the Gapeau River and its tributaries. The receiving environment supports diverse aquatic life and is part of a region known for its Mediterranean climate and coastal ecosystems. Proper treatment helps protect downstream water quality and marine habitats.

The plant discharges into the Gapeau River basin, which flows into the Mediterranean Sea near Hyères. This coastal watershed supports a variety of aquatic species and is ecologically sensitive due to its proximity to marine environments. The region's Mediterranean climate leads to seasonal variations in flow, making consistent treatment important for maintaining downstream water quality and protecting coastal ecosystems.