SAINT BRIAC SAINT LUNAIRE, Saint-Lunaire

Overview

SAINT BRIAC SAINT LUNAIRE wastewater treatment plant serves Saint-Lunaire, France, with a population equivalent of 11,000. Located in Bretagne, it discharges treated effluent into the coastal waters of the English Channel.

The SAINT BRIAC SAINT LUNAIRE wastewater treatment plant is located in Saint-Lunaire, a coastal commune in the Ille-et-Vilaine department of Bretagne, France. The facility serves a population equivalent of approximately 11,000, classifying it as a medium-sized agglomeration under French and European regulations. Its coastal position near the English Channel places it within a sensitive marine environment. As a French wastewater treatment plant, it operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for discharges into coastal waters from agglomerations of this size. The directive also mandates more stringent treatment if the receiving waters are designated as sensitive areas. The plant's designed capacity is 1.00 (likely in thousands of cubic meters per day), indicating its scale relative to the population served. The treated effluent is discharged into the English Channel via the local coastal hydrology. The surrounding area includes the Rance estuary and the Emerald Coast, known for their ecological significance and tourism. Proper treatment helps protect bathing waters and marine life along this stretch of the Breton coastline.

Environmental context

The plant discharges into the English Channel, a dynamic marine environment that supports diverse aquatic life including seabirds, fish, and marine mammals. The nearby Rance estuary and the Emerald Coast are ecologically sensitive areas, with tidal flats and rocky shores that host rich biodiversity. Effective wastewater treatment is crucial to maintain water quality for tourism and coastal ecosystems.

Frequently asked questions

The plant is located in Saint-Lunaire, in the Ille-et-Vilaine department of Bretagne, France, near the coast of the English Channel.

The plant serves a population equivalent of approximately 11,000 people.

The treated effluent is discharged into the English Channel, likely via a coastal outfall, following treatment that meets EU standards for coastal discharges.

As a French plant, it operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for discharges into coastal waters from agglomerations of this size.

For agglomerations of this size discharging to coastal waters, the EU directive mandates secondary treatment. French plants often use activated sludge or similar biological processes to meet effluent quality standards.