Overview
BREST ZONE PORTUAIRE is a municipal wastewater treatment plant in Brest, Bretagne, France, serving approximately 155,000 people. It is located within 50 km of the coast and discharges into the local watershed.
BREST ZONE PORTUAIRE is a municipal wastewater treatment plant located in the port industrial zone of Brest, in the Finistère department of Bretagne, France. The plant serves a population of approximately 155,166, placing it in the large agglomeration category under EU regulations. As a French facility serving over 150,000 people, the plant is subject to the EU Urban Waste Water Treatment Directive 91/271/EEC, which requires advanced treatment (tertiary or equivalent) for discharges into sensitive areas. The plant's designed capacity is 1. The regulatory framework ensures compliance with national standards set by the French Ministry of Ecology. The plant's treated effluent ultimately reaches the Atlantic Ocean via the Brest harbor and the Rade de Brest, a large natural harbor that supports diverse marine life. The surrounding watershed includes the Penfeld River and other coastal streams. The area is ecologically significant for its estuarine habitats and migratory bird populations.
Environmental context
The plant discharges into the Rade de Brest, a semi-enclosed marine bay connected to the Atlantic Ocean. This water body supports rich biodiversity, including seagrass beds and shellfish fisheries. The watershed includes urban and industrial runoff from Brest, making nutrient management critical to prevent eutrophication in the sensitive coastal environment.
Frequently asked questions
BREST ZONE PORTUAIRE is located in the port industrial zone of Brest, in the Finistère department of Bretagne, France. Its address is QR4, Avenue des Travailleurs de la Réparation Navale, 29200 Brest.
The plant serves approximately 155,166 people, classifying it as a large agglomeration under EU regulations.
The plant discharges treated effluent into the Rade de Brest, a natural harbor that flows into the Atlantic Ocean. The discharge point is in a coastal industrial area.
As a French plant serving over 150,000 people, it operates under the EU Urban Waste Water Treatment Directive 91/271/EEC, which mandates advanced treatment for sensitive coastal areas. National enforcement is by the French Ministry of Ecology.
For large agglomerations in France, especially those near sensitive coastal zones, tertiary treatment (nutrient removal) is typically required to meet EU standards and protect marine ecosystems.
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