Overview
SAINT NOLFF wastewater treatment plant in Saint-Nolff, Bretagne, France, serves about 5,000 people with advanced treatment and discharges 897 m³/day. Located near the coast, it operates under EU Urban Waste Water Treatment Directive standards.
The SAINT NOLFF wastewater treatment plant is located in Saint-Nolff, a commune in the Morbihan department of Bretagne, France. It serves a population of approximately 5,029 people, classifying it as a small to medium agglomeration under EU regulations. The plant is situated near the coast, within 10 km of the Atlantic shoreline, and its operations are subject to French and European environmental standards. The facility employs advanced treatment processes, which go beyond the secondary treatment baseline required by the EU Urban Waste Water Treatment Directive (91/271/EEC) for sensitive areas. With a designed capacity of 4,400 m³/day and a current discharge volume of 897.16 m³/day, the plant operates well below its capacity, indicating room for future growth or seasonal variations. The plant is part of France's national wastewater infrastructure, regulated by the French Ministry of Ecological Transition and local water agencies. The treated effluent is discharged into local watercourses that eventually reach the Gulf of Morbihan, a semi-enclosed marine inlet connected to the Bay of Biscay and the Atlantic Ocean. The Gulf of Morbihan is an ecologically sensitive area known for its rich biodiversity, including seagrass beds, shellfish beds, and migratory bird populations. The plant's advanced treatment helps protect these downstream ecosystems from nutrient pollution and other contaminants.
Environmental context
The SAINT NOLFF plant discharges treated wastewater into local streams that flow into the Gulf of Morbihan, a semi-enclosed marine inlet on the Atlantic coast of France. The Gulf supports diverse aquatic life, including seagrass meadows and shellfish fisheries, and is an important stopover for migratory birds. Advanced treatment at the plant helps minimize nutrient loading and protect the ecological balance of this coastal environment.
Frequently asked questions
The SAINT NOLFF plant is located at Chemin de Bourmehiec au Porho, Le Clos du Poirier, Saint-Nolff, in the Morbihan department of Bretagne, France.
The plant serves approximately 5,029 people, classifying it as a small to medium agglomeration under EU wastewater treatment regulations.
The plant discharges treated effluent into local streams that flow into the Gulf of Morbihan, a coastal inlet on the Atlantic Ocean. The advanced treatment ensures high-quality effluent before release.
The plant operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment as a minimum, with advanced treatment in sensitive areas. French national regulations and local water agencies enforce compliance.
For agglomerations of this size, French regulations typically require secondary treatment. However, plants in sensitive coastal areas like the Gulf of Morbihan often implement advanced treatment to protect marine ecosystems.
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