SAINT AVE Beauregard, Saint-Avé

Overview

SAINT AVE Beauregard is an advanced wastewater treatment plant in Saint-Avé, Brittany, France, serving about 5,000 people. It discharges treated water near the coast with a design capacity of 7,000 m³/day.

SAINT AVE Beauregard is a wastewater treatment facility located in Saint-Avé, a commune in the Morbihan department of Brittany, France. The plant serves a population of approximately 5,000 and is situated near the coastal zone of the Gulf of Morbihan, an ecologically sensitive area. As part of France's wastewater infrastructure, it operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires advanced treatment for sensitive areas. The plant employs advanced treatment processes, ensuring high-quality effluent before discharge. With a design capacity of 7,000 m³/day and an average daily flow of 887 m³, it operates well below its capacity, indicating room for future growth. The facility is classified as a small agglomeration under EU regulations, which typically mandates secondary treatment, but the advanced level reflects local environmental requirements. The treated effluent is discharged into the local watershed, which drains into the Gulf of Morbihan, a semi-enclosed sea inlet connected to the Atlantic Ocean. This coastal environment supports diverse marine life, including seagrass beds and migratory bird populations. The plant's advanced treatment helps protect the gulf's water quality and ecological balance.

Environmental context

The plant discharges into the Gulf of Morbihan, a coastal inlet that connects to the Bay of Biscay and the Atlantic Ocean. This area is ecologically sensitive, supporting seagrass meadows, shellfish beds, and migratory waterfowl. The advanced treatment level helps minimize nutrient loading and protects the marine ecosystem from eutrophication.

Frequently asked questions

The plant is located at Giratoire de Beauregard, Beauregard, Saint-Avé, in the Morbihan department of Brittany, France.

The plant serves approximately 4,972 people, classifying it as a small agglomeration under EU regulations.

The plant discharges treated effluent into the local watershed, which flows into the Gulf of Morbihan, a coastal inlet connected to the Atlantic Ocean.

The plant provides advanced treatment, which goes beyond the secondary treatment required by the EU Urban Waste Water Treatment Directive for small agglomerations, likely due to the sensitivity of the coastal receiving environment.

Under the EU Urban Waste Water Treatment Directive (91/271/EEC), plants serving fewer than 10,000 people typically require secondary treatment. However, in sensitive areas like coastal zones, advanced treatment may be mandated to protect water quality.