Overview
Bassussarry 2009 is a secondary treatment plant in Bassussarry, Nouvelle-Aquitaine, France, serving about 4,183 people. It discharges treated wastewater near the Bay of Biscay coast.
Bassussarry 2009 is a municipal wastewater treatment plant located in Bassussarry, a commune in the Pyrénées-Atlantiques department of Nouvelle-Aquitaine, southwestern France. The plant serves a population of approximately 4,183, placing it in the small-to-medium agglomeration category under French regulations. The plant provides secondary treatment, which is the standard required by the EU Urban Waste Water Treatment Directive (91/271/EEC) for freshwater discharges from agglomerations of this size. With a designed capacity of 8,000 m³/day and an average daily discharge volume of 746.24 m³, the plant operates well below its capacity, indicating room for future growth or seasonal variability. The treated effluent is discharged into the local watershed, which ultimately drains into the Bay of Biscay via the Adour estuary. The plant's proximity to the coast (within 10 km) means its discharge contributes to the nutrient load in coastal waters, potentially affecting marine ecosystems. The plant plays a key role in protecting the Nive and Adour rivers from untreated wastewater.
Environmental context
The plant discharges into the Nive River basin, a tributary of the Adour River, which flows into the Bay of Biscay. The Adour estuary supports diverse aquatic life, including migratory fish species. The coastal zone is ecologically sensitive due to its role as a nursery for marine species and its exposure to eutrophication risks from nutrient inputs.
Frequently asked questions
The plant is located at Allée des Deux Étangs, Bassussarry, in the Pyrénées-Atlantiques department of Nouvelle-Aquitaine, France.
The plant serves approximately 4,183 people, classifying it as a small-to-medium agglomeration under EU regulations.
The treated effluent is discharged into the local watershed, which flows into the Nive River and then the Adour River, ultimately reaching the Bay of Biscay.
The plant provides secondary treatment, meeting the EU Urban Waste Water Treatment Directive's standard requirement for freshwater discharges from agglomerations of this size.
As a French plant, it operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which mandates secondary treatment for agglomerations over 2,000 population equivalent discharging into freshwater.
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