Overview
ST CLEMENT Patus des Granges is a secondary wastewater treatment plant in Saint-Clément-de-Rivière, Occitanie, France, serving a population of 440 with a designed capacity of 680 m³/day.
ST CLEMENT Patus des Granges is a municipal wastewater treatment plant located in Saint-Clément-de-Rivière, a commune in the Hérault department of Occitanie, southern France. The plant serves a small population of 440 residents and is designed to handle up to 680 cubic meters of wastewater per day, with a current discharge volume of 78.5 m³/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), plants serving agglomerations under 2,000 population equivalent are subject to less stringent requirements, but secondary treatment is still considered best practice for environmental protection. The plant's operation is likely overseen by the local municipality or an intercommunal syndicate. The treated effluent is discharged into the local watershed, which ultimately drains into the Mediterranean Sea via the Lez River or its tributaries. The region is characterized by a Mediterranean climate with dry summers and heavy autumn rains, making consistent treatment important to protect downstream water quality and aquatic habitats.
Environmental context
The plant discharges into the local watershed that feeds the Lez River, which flows southward into the Mediterranean Sea near Palavas-les-Flots. This coastal river system supports diverse aquatic life and is used for recreation and irrigation. The Mediterranean coastal zone is ecologically sensitive, with seagrass meadows and fish nurseries that can be impacted by nutrient pollution. Proper secondary treatment helps minimize eutrophication risks in the downstream environment.
Frequently asked questions
The plant is located at D 145, Saint-Clément-de-Rivière, in the Hérault department of Occitanie, southern France.
The plant serves a population of 440 residents in the Saint-Clément-de-Rivière area.
The treated effluent is discharged into the local watershed, which flows into the Lez River and eventually reaches the Mediterranean Sea.
The plant provides secondary treatment, which includes biological processes to reduce organic matter and suspended solids.
Under the EU UWWTD, agglomerations under 2,000 population equivalent have less stringent requirements, but secondary treatment is standard for environmental protection in sensitive areas like the Mediterranean coast.
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