Overview
SAINT MARTIN DE SEIGNANX 2 is a secondary treatment plant in Saint-Martin-de-Seignanx, Nouvelle-Aquitaine, France, serving 3,300 people with a designed capacity of 7,500 m³/day.
SAINT MARTIN DE SEIGNANX 2 is a municipal wastewater treatment plant located in Saint-Martin-de-Seignanx, within the Landes department of Nouvelle-Aquitaine, France. The plant serves a population of 3,300 and has a designed capacity of 7,500 m³/day, with a current discharge volume of 588.71 m³/day. The plant provides secondary treatment, which is the standard level required under the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this size. Secondary treatment typically involves biological processes to reduce organic matter and suspended solids, meeting the directive's requirements for inland discharges. The plant is situated near the coast, within 10 km of the Atlantic Ocean. Its treated effluent likely discharges into local watercourses that flow into the Bay of Biscay. The surrounding area includes the Barthes region, a wetland area that supports diverse aquatic life and requires careful management of nutrient loads to prevent eutrophication.
Environmental context
The plant is located in the Adour-Garonne basin, with its treated effluent likely entering the Barthes wetlands before reaching the Atlantic Ocean via the Adour River or its tributaries. The coastal environment is ecologically sensitive, supporting migratory fish species and diverse bird populations. Nutrient management is critical to protect the downstream marine ecosystem from eutrophication.
Frequently asked questions
The plant is located at Route des Barthes, Saint-Martin-de-Seignanx, in the Landes department of Nouvelle-Aquitaine, France.
The plant serves a population of 3,300 people.
The plant discharges treated effluent likely into local watercourses that flow into the Barthes wetlands and eventually the Atlantic Ocean.
The plant provides secondary treatment, which is the standard required under the EU Urban Waste Water Treatment Directive for agglomerations of this size.
The plant operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which mandates secondary treatment for inland discharges from agglomerations serving 2,000 to 10,000 people.
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