Overview
CASTELNAU DE MEDOC CANTERANNE is a wastewater treatment plant in Castelnau-de-Médoc, Nouvelle-Aquitaine, France, serving approximately 6,400 people. It operates under the EU Urban Waste Water Treatment Directive.
CASTELNAU DE MEDOC CANTERANNE is a wastewater treatment plant located in Castelnau-de-Médoc, within the Gironde department of Nouvelle-Aquitaine, France. The plant serves a population of around 6,400, classifying it as a small to medium agglomeration under EU regulations. As a French facility, the plant is subject to the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations of this size discharging into freshwater or estuaries. The plant's designed capacity is 1.00 (likely in thousands of cubic meters per day), indicating a modest scale appropriate for the local population. The plant's treated effluent ultimately drains into the Garonne River estuary and the Atlantic Ocean, contributing to the ecological health of the Gironde estuary, a critical habitat for migratory fish such as Atlantic salmon and European eel. The region's temperate maritime climate influences seasonal flow variations in receiving waters.
Environmental context
The plant discharges into the Garonne River watershed, which flows into the Gironde estuary and then the Bay of Biscay in the Atlantic Ocean. The Gironde estuary is one of Europe's largest, supporting diverse aquatic life and serving as a key migratory corridor for fish species. The plant's location within 50 km of the coast means its effluent can influence coastal water quality, particularly during low-flow periods.
Frequently asked questions
The plant is located at D 1215E1, Castelnau-de-Médoc, in the Gironde department of Nouvelle-Aquitaine, France.
The plant serves approximately 6,400 people, classifying it as a small to medium agglomeration under EU regulations.
The treated effluent is discharged into the Garonne River watershed, which flows into the Gironde estuary and ultimately the Atlantic Ocean.
As a French plant, it operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which mandates secondary treatment for agglomerations of this size.
Under the EU UWWTD, plants serving between 2,000 and 10,000 population equivalent are generally required to have secondary treatment, unless discharging into sensitive areas requiring more advanced treatment.
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