Overview
Thivras wastewater treatment plant serves Marmande, Nouvelle-Aquitaine, France, with a population equivalent of 27,000. It operates under the EU Urban Waste Water Treatment Directive.
Thivras is a wastewater treatment plant located in Marmande, within the Nouvelle-Aquitaine region of southwestern France. The facility serves a population equivalent of 27,000, classifying it as a medium-sized agglomeration under EU regulations. Its location along the Voie verte between Marmande and Casteljaloux places it in a rural-urban interface near the Garonne River basin. As a French plant serving over 10,000 people, Thivras is subject to the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment as a minimum standard. For agglomerations of this scale, the directive also mandates more advanced treatment if the receiving waters are designated as sensitive areas. Regulatory compliance ensures appropriate treatment levels. The plant discharges into the local watershed, which ultimately drains into the Garonne River and then into the Gironde estuary and the Atlantic Ocean. The Garonne basin supports diverse aquatic life and is an important ecological corridor for migratory fish species. The plant's operations contribute to protecting water quality in this significant river system.
Environmental context
Thivras discharges into the Garonne River basin, which flows into the Gironde estuary and then the Atlantic Ocean. The Garonne is a major river in southwestern France, supporting diverse aquatic ecosystems and serving as a migratory route for species such as Atlantic salmon and European eel. The estuary is a dynamic environment with tidal influences and rich biodiversity. Protecting water quality in this watershed is critical for maintaining ecological balance and supporting downstream habitats.
Frequently asked questions
Thivras is located in Marmande, in the Lot-et-Garonne department of Nouvelle-Aquitaine, France. The address is along the Voie verte between Marmande and Casteljaloux.
Thivras serves a population equivalent of 27,000, classifying it as a medium-sized agglomeration under EU regulations.
Thivras discharges treated wastewater into the local watershed, which flows into the Garonne River, then into the Gironde estuary, and ultimately the Atlantic Ocean.
As a plant serving over 10,000 people, Thivras is required to meet secondary treatment standards under the EU Urban Waste Water Treatment Directive (91/271/EEC). If the receiving waters are sensitive, more advanced treatment may be required.
For agglomerations of 27,000 people in France, secondary treatment is standard under the EU directive. In sensitive areas, tertiary treatment such as nutrient removal may be required to protect water quality.
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