Overview
The MACON wastewater treatment plant serves Grièges, France, with a population equivalent of 80,285. It operates under the EU Urban Waste Water Treatment Directive, which mandates secondary treatment for agglomerations of this scale.
The MACON wastewater treatment plant is located in Grièges, within the Auvergne-Rhône-Alpes region of France. It serves a population equivalent of approximately 80,285, classifying it as a medium-to-large agglomeration under EU regulations. The plant is situated near the Saône River, which flows through the region and ultimately joins the Rhône River. As a facility serving over 10,000 people, the plant is subject to the EU Urban Waste Water Treatment Directive (91/271/EEC). This directive requires secondary treatment for all discharges from agglomerations of this size, with more stringent tertiary treatment if the receiving waters are designated as sensitive areas. The plant's location inland, away from coastal zones, suggests its effluent is discharged into freshwater systems. The treated wastewater from the MACON plant likely discharges into the Saône River, a major tributary of the Rhône. The Rhône River flows into the Mediterranean Sea, making the plant's operations important for downstream water quality. The plant helps protect the local aquatic ecosystem and supports the ecological health of the Saône and Rhône river basins.
Environmental context
The MACON plant discharges into the Saône River, which flows south to join the Rhône River near Lyon. The Rhône then continues to the Mediterranean Sea. The Saône and Rhône rivers support diverse aquatic life and are important for regional biodiversity. The plant's treatment processes help reduce nutrient and pollutant loads, protecting downstream water quality and aquatic habitats.
Frequently asked questions
The MACON wastewater treatment plant is located in Grièges, in the Auvergne-Rhône-Alpes region of France, near the Saône River.
The MACON plant serves a population equivalent of approximately 80,285 people.
The treated wastewater from the MACON plant is discharged into the Saône River, which flows into the Rhône River and eventually reaches the Mediterranean Sea.
As a French facility serving over 10,000 people, the MACON plant operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment and potentially tertiary treatment if the receiving waters are sensitive.
In France, plants serving agglomerations of this size are required by the EU Urban Waste Water Treatment Directive to provide at least secondary treatment. Many such plants also incorporate nutrient removal to protect sensitive water bodies like the Saône and Rhône rivers.
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