Overview
MARVEJOLS wastewater treatment plant serves Chirac, France, in the Occitanie region. It handles a population equivalent of approximately 18,991 under the EU Urban Waste Water Treatment Directive.
The MARVEJOLS wastewater treatment plant is located in Chirac, within the Occitanie region of southern France. It serves a population equivalent of around 18,991, classifying it as a medium-sized agglomeration under European Union regulations. The plant is situated inland, away from the coast, and its operations are part of the regional water management infrastructure. Under the EU Urban Waste Water Treatment Directive (91/271/EEC), agglomerations of this scale are required to provide at least secondary treatment for their wastewater. The directive also mandates more stringent treatment if the receiving waters are designated as sensitive areas. The plant's treatment processes are designed to meet these regulatory standards, ensuring that effluent quality is controlled before discharge. The treated wastewater from the MARVEJOLS plant is discharged into local watercourses that eventually drain into the Lot River, a tributary of the Garonne River, which flows into the Atlantic Ocean. The surrounding watershed supports diverse aquatic life and is important for regional biodiversity. The plant plays a key role in protecting these water bodies from pollution, maintaining water quality for both ecological and human uses.
Environmental context
The MARVEJOLS plant discharges into local streams that feed the Lot River, a major tributary of the Garonne River. The Garonne flows into the Gironde estuary and then the Atlantic Ocean. The watershed supports diverse aquatic ecosystems, including fish species such as salmon and trout, and is an important corridor for migratory birds. The plant's operations help preserve water quality in this ecologically sensitive region.
Frequently asked questions
The MARVEJOLS plant is located in Chirac, a commune in the Lozère department of the Occitanie region in southern France. Its address is D 809, Le Besset, Chirac.
The plant serves a population equivalent of approximately 18,991 people, classifying it as a medium-sized agglomeration under EU regulations.
The treated wastewater is discharged into local watercourses that flow into the Lot River, a tributary of the Garonne River, which ultimately reaches the Atlantic Ocean.
As a French plant, it operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations of this size and potentially tertiary treatment if the receiving waters are sensitive.
For agglomerations between 10,000 and 100,000 population equivalent, the EU UWWTD mandates secondary treatment. In France, this is typically achieved through biological processes such as activated sludge or biofiltration, ensuring compliance with national water quality standards.
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