Overview
La Teste de Buch 2 Cazaux is an advanced wastewater treatment plant serving 4,547 people in La Teste-de-Buch, Nouvelle-Aquitaine, France. It discharges 811.18 m³/day of treated effluent near the Atlantic coast.
La Teste de Buch 2 Cazaux is an advanced wastewater treatment plant located in La Teste-de-Buch, within the Gironde department of Nouvelle-Aquitaine, France. The plant serves a population of 4,547 and has a designed capacity of 5,000 m³/day, with a current discharge volume of 811.18 m³/day. It is situated near the Atlantic coast, less than 10 km from the shoreline. As an advanced treatment facility, it goes beyond secondary treatment to remove nutrients and other pollutants, meeting stringent standards under the EU Urban Waste Water Treatment Directive (91/271/EEC). For agglomerations of this size (under 10,000 population equivalent), the directive requires appropriate treatment, and the advanced level ensures high-quality effluent suitable for discharge into sensitive coastal environments. The plant discharges treated wastewater into the coastal waters of the Bay of Biscay, near the Arcachon Bay area. This region supports diverse marine life and is an important ecological zone. The advanced treatment helps protect the local marine ecosystem and recreational waters from nutrient pollution and pathogens.
Environmental context
The plant discharges into the coastal waters of the Bay of Biscay, near the Arcachon Bay, a semi-enclosed marine basin that supports oyster farming, seagrass beds, and migratory bird populations. The advanced treatment reduces nutrient loads, helping to prevent eutrophication in this ecologically sensitive coastal area. The effluent ultimately mixes with Atlantic Ocean waters, contributing to the overall water quality of the region.
Frequently asked questions
The plant is located in La Teste-de-Buch, in the Gironde department of Nouvelle-Aquitaine, France, near the Atlantic coast.
The plant serves a population of 4,547 people.
The plant discharges treated wastewater into the coastal waters of the Bay of Biscay, near the Arcachon Bay area.
The plant provides advanced treatment, which includes nutrient removal beyond secondary treatment, meeting EU standards for sensitive coastal areas.
Under the EU Urban Waste Water Treatment Directive (91/271/EEC), plants serving agglomerations under 10,000 population equivalent require appropriate treatment. The advanced treatment at this plant ensures high-quality effluent for discharge into a sensitive coastal environment.
Nearby plants