Overview
Mesnil en Vallee chemin de l Aulgamoine is a secondary treatment plant in Maine-et-Loire, France, serving 2,000 people. It discharges 356.80 m³/day and has a designed capacity of 2,500 m³/day.
The Mesnil en Vallee chemin de l Aulgamoine wastewater treatment plant is located in the Pays de la Loire region of France, serving the commune of Le Mesnil-en-Vallée in Maine-et-Loire. This facility treats wastewater from a population of approximately 2,000 residents, operating as part of the municipal infrastructure for the Mauges-sur-Loire area. The plant provides secondary treatment, which is the standard biological treatment required under the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this size. With a designed capacity of 2,500 m³/day and an average daily discharge of 356.80 m³, the facility operates well within its capacity, ensuring effective treatment of local wastewater. The treated effluent is discharged into the local watershed, which ultimately drains into the Loire River, one of France's major rivers. The Loire basin supports diverse aquatic ecosystems and is an important ecological corridor. The plant's secondary treatment helps protect downstream water quality in this sensitive river system.
Environmental context
The plant discharges into the Loire River basin, which flows westward through the Pays de la Loire region and into the Atlantic Ocean near Saint-Nazaire. The Loire is a major European river known for its biodiversity, including migratory fish species such as Atlantic salmon and European eel. Secondary treatment reduces organic pollutants and suspended solids, helping to maintain water quality in this ecologically significant watershed.
Frequently asked questions
The plant is located in Le Mesnil-en-Vallée, within the commune of Mauges-sur-Loire, in the Maine-et-Loire department of the Pays de la Loire region, France.
The plant serves approximately 2,000 residents in the local area.
The treated effluent is discharged into the local watercourse, which flows into the Loire River basin, eventually reaching the Atlantic Ocean.
The plant provides secondary treatment, which involves biological processes to remove organic matter and suspended solids, meeting EU standards for agglomerations of this size.
Under the EU UWWTD (91/271/EEC), agglomerations with a population equivalent between 2,000 and 10,000 are required to have secondary treatment. This plant, serving 2,000 people, complies with that requirement.
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