Overview
ST LIZIER wastewater treatment plant serves Lorp-Sentaraille in Occitanie, France. It treats wastewater from approximately 17,548 people under the EU Urban Waste Water Treatment Directive.
The ST LIZIER wastewater treatment plant is located in Lorp-Sentaraille, a commune in the Ariège department of Occitanie, southern France. The facility serves a population of approximately 17,548, classifying it as a medium-sized agglomeration under EU regulations. As a French treatment plant, ST LIZIER operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations of this size discharging into freshwater. The directive also mandates more advanced treatment if the receiving waters are designated as sensitive areas. The plant's treated effluent is discharged into the local watershed, which ultimately drains into the Garonne River via the Ariège River. The Garonne flows into the Gironde estuary and the Atlantic Ocean. The surrounding region supports diverse aquatic life and is part of the broader Garonne basin ecosystem.
Environmental context
The ST LIZIER plant discharges into the Ariège River, a tributary of the Garonne River. The Garonne flows through southwestern France to the Gironde estuary and the Atlantic Ocean. This watershed supports diverse aquatic species and is an important ecological corridor. The plant's operations help protect water quality in this sensitive river system.
Frequently asked questions
The ST LIZIER plant is located in Lorp-Sentaraille, a commune in the Ariège department of Occitanie, southern France.
The plant serves approximately 17,548 people, classifying it as a medium-sized agglomeration under EU regulations.
The treated effluent is discharged into the local watershed, which flows into the Ariège River, a tributary of the Garonne River, eventually reaching the Atlantic Ocean.
The plant operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations of this size discharging into freshwater.
Under the EU Urban Waste Water Treatment Directive, plants serving between 10,000 and 150,000 people typically require secondary treatment, with tertiary treatment if discharging into sensitive areas.
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