Overview
ALBI Agglomeration wastewater treatment plant serves the city of Albi in Occitanie, France. It treats wastewater for approximately 81,100 people under the EU Urban Waste Water Treatment Directive.
The ALBI Agglomeration wastewater treatment plant is located in Albi, in the Occitanie region of southern France. It serves a population of around 81,100, classifying it as a medium-to-large agglomeration under EU regulations. The plant is situated on the Rue de la Gravière, near the Tarn River. As a French facility, the plant operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations of this size. For larger agglomerations in sensitive areas, tertiary treatment may be mandated. The regulatory framework ensures compliance with national and EU standards. The treated effluent is discharged into the Tarn River, which flows through the Tarn department and eventually joins the Garonne River before reaching the Atlantic Ocean. The plant plays a key role in protecting the water quality of the Tarn River and its downstream ecosystems, supporting aquatic life and recreational uses.
Environmental context
The plant discharges into the Tarn River, a tributary of the Garonne River, which flows into the Gironde estuary and the Atlantic Ocean. The Tarn River supports diverse aquatic life and is used for recreation and irrigation. Downstream, the Garonne is an important migratory corridor for fish species such as salmon and eels. Protecting water quality in this watershed is critical for maintaining ecological balance and human uses.
Frequently asked questions
The plant is located at Rue de la Gravière in Albi, in the Occitanie region of southern France.
The plant serves approximately 81,100 people, classifying it as a medium-to-large agglomeration under EU regulations.
The treated effluent is discharged into the Tarn River, which flows through the Tarn department and eventually reaches the Atlantic Ocean via the Garonne River and Gironde estuary.
The plant operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which sets standards for collection, treatment, and discharge of urban wastewater. For agglomerations over 10,000 PE, secondary treatment is required, with tertiary treatment in sensitive areas.
In France, plants serving this population typically provide secondary treatment (biological treatment) as a minimum. If the receiving water body is in a sensitive area, tertiary treatment for nutrient removal may be required under the EU UWWTD.
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