Overview
GRAVIGNY CTEU is a wastewater treatment plant serving Caër, Normandy, France. It handles a population equivalent of 114,000 and operates under the EU Urban Waste Water Treatment Directive.
GRAVIGNY CTEU is a wastewater treatment plant located in Caër, within the Normandy region of France. The facility serves a population equivalent of 114,000, placing it in the large agglomeration category under EU regulations. As part of France's wastewater infrastructure, it plays a key role in managing municipal wastewater for the surrounding urban area. Under the EU Urban Waste Water Treatment Directive (91/271/EEC), agglomerations of this size are required to provide at least secondary treatment, with tertiary treatment mandated if the receiving waters are designated as sensitive areas. The regulatory framework ensures compliance with European standards for nutrient removal and effluent quality. The treated effluent from the plant is discharged into the local watershed, which ultimately drains into the Seine River basin and then into the English Channel. The plant's operations help protect downstream water quality and support the ecological health of the Seine estuary and coastal marine environment.
Environmental context
The plant discharges into the Seine River basin, which flows through Normandy and into the English Channel. This watershed supports diverse aquatic life, including migratory fish species such as salmon and eel. The Seine estuary is an ecologically sensitive area that provides critical habitat for birds and marine organisms. Proper wastewater treatment is essential to prevent nutrient pollution and maintain water quality in this important coastal ecosystem.
Frequently asked questions
GRAVIGNY CTEU is located at 2, Rue des Hautes Portes, in Caër, within the Normandy region of France. It serves the urban area of Caër and surrounding communities.
The plant serves a population equivalent of 114,000, classifying it as a large agglomeration under the EU Urban Waste Water Treatment Directive.
The treated effluent is discharged into the local watershed, which flows into the Seine River basin and eventually reaches the English Channel. The plant's discharge helps protect downstream water quality.
The plant protects the Seine River basin and its tributaries in Normandy. By treating wastewater, it reduces nutrient and pollutant loads that could harm aquatic life in the Seine estuary and the English Channel.
As a large agglomeration serving over 100,000 people, GRAVIGNY CTEU is required to provide at least secondary treatment under the EU UWWTD. If the receiving waters are sensitive, tertiary treatment for nutrient removal may also be mandated to meet European water quality standards.
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