Overview
La Mézière 2 is a municipal wastewater treatment plant serving 7,400 people in La Mézière, Brittany, France. It operates under the EU Urban Waste Water Treatment Directive, ensuring compliance with secondary treatment standards.
La Mézière 2 is a municipal wastewater treatment plant located in La Mézière, a commune in the Ille-et-Vilaine department of Brittany, France. The plant serves a population of approximately 7,400 residents, classifying it as a small to medium agglomeration under EU regulations. As a French wastewater facility, La Mézière 2 operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which mandates secondary treatment for agglomerations of this size. The directive also requires appropriate treatment before discharge into sensitive areas, ensuring environmental protection. The plant's treated effluent is discharged into local watercourses that ultimately drain into the Rance River basin and the English Channel. This coastal drainage system supports diverse aquatic life and requires careful management to prevent nutrient enrichment in downstream marine environments.
Environmental context
The plant discharges into the Rance River basin, which flows into the English Channel near Saint-Malo. This coastal watershed supports diverse estuarine and marine habitats, including important nursery grounds for fish. Nutrient management is critical to prevent eutrophication in the sensitive coastal waters of the Brittany region.
Frequently asked questions
La Mézière 2 is located in La Mézière, a commune in the Ille-et-Vilaine department of Brittany, France. The plant is situated at Les Mottais, near Rennes.
The plant serves approximately 7,400 people, classifying it as a small to medium agglomeration under EU wastewater treatment regulations.
The treated effluent is discharged into local watercourses that drain into the Rance River basin, eventually reaching the English Channel.
As a French plant serving 7,400 people, La Mézière 2 is subject to the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations of this size to protect receiving waters.
For agglomerations of this scale, French plants typically provide secondary treatment (biological treatment) as mandated by the EU directive. Some may also include nutrient removal if discharging into sensitive areas.
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