Overview
CHARTRES SAINT ERBLON wastewater treatment plant serves 37,000 people in Noyal-Châtillon-sur-Seiche, Bretagne, France. It operates under the EU Urban Waste Water Treatment Directive.
The CHARTRES SAINT ERBLON wastewater treatment plant is located in Noyal-Châtillon-sur-Seiche, a commune in the Ille-et-Vilaine department of Bretagne, France. It serves a population of approximately 37,000 people, classifying it as a medium-sized agglomeration under EU regulations. As a French facility, the plant operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations of this size. The directive also mandates more stringent treatment if the discharge enters a sensitive area, such as a eutrophic water body. The plant's treated effluent is discharged into the local watershed, which ultimately drains into the Vilaine River and then into the Atlantic Ocean. The Vilaine River supports diverse aquatic life and is an important ecological corridor in the region.
Environmental context
The plant discharges into the Vilaine River basin, which flows into the Atlantic Ocean via the Vilaine estuary. This watershed supports a variety of freshwater and estuarine species, including migratory fish such as Atlantic salmon and eel. The region's agricultural landscape contributes nutrient loads that the plant helps manage to prevent eutrophication downstream.
Frequently asked questions
The plant is located in Noyal-Châtillon-sur-Seiche, a commune in the Ille-et-Vilaine department of Bretagne, France, near the city of Rennes.
The plant serves approximately 37,000 people, classifying it as a medium-sized agglomeration under EU regulations.
The treated effluent is discharged into the local watershed, which drains into the Vilaine River and ultimately into the Atlantic Ocean.
The plant operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations of this size and may require tertiary treatment if discharging into sensitive areas.
Under the EU Urban Waste Water Treatment Directive, plants serving between 10,000 and 100,000 people are required to have secondary treatment. In sensitive areas, additional nutrient removal may be mandated.
Nearby plants