Overview
EPUR VALLONS is a municipal wastewater treatment plant serving Cessieu, France. It treats wastewater for approximately 18,485 people in the Auvergne-Rhône-Alpes region.
EPUR VALLONS is a wastewater treatment plant located in Cessieu, a commune in the Isère department of the Auvergne-Rhône-Alpes region, France. The plant serves a population of around 18,485, placing it in the medium agglomeration category under French regulations. As a French wastewater facility, EPUR VALLONS operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations of this size. The directive also mandates more stringent treatment if the receiving waters are designated as sensitive areas. It is expected to meet national standards for biological treatment. The treated effluent from EPUR VALLONS is discharged into the local watershed, which ultimately drains into the Rhône River basin. The Rhône is one of Europe's major rivers, flowing into the Mediterranean Sea. The plant plays a key role in protecting the water quality of local streams and the downstream Rhône ecosystem, supporting aquatic life and recreational uses.
Environmental context
The plant discharges into the Rhône River basin, a major European watershed that flows into the Mediterranean Sea. The Rhône supports diverse aquatic ecosystems and is an important migratory corridor for fish species. Protecting water quality in this basin is critical for maintaining biodiversity and supporting downstream uses such as agriculture and tourism.
Frequently asked questions
EPUR VALLONS is located in Cessieu, a commune in the Isère department of the Auvergne-Rhône-Alpes region, France. The address is Chemin du Pont Rouge, Cessieu.
The plant serves approximately 18,485 people, classifying it as a medium-sized agglomeration under French and EU regulations.
The treated effluent is discharged into the local watershed, which is part of the Rhône River basin. The Rhône flows into the Mediterranean Sea.
As a French plant, EPUR VALLONS operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations of this size. French national regulations implement this directive.
For agglomerations between 10,000 and 150,000 population equivalent, the EU directive mandates secondary treatment (biological treatment). In sensitive areas, tertiary treatment for nutrient removal may be required.
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