Overview
PONTCHATEAU Route de Besne is a municipal wastewater treatment plant serving Pontchâteau, Pays de la Loire, France. It treats wastewater for approximately 5,633 people and discharges into the local watershed.
PONTCHATEAU Route de Besne is a municipal wastewater treatment plant located in Pontchâteau, a commune in the Loire-Atlantique department of Pays de la Loire, France. The plant serves a population of approximately 5,633 residents, classifying it as a small agglomeration under French and EU regulations. 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. The plant has a designed capacity of 1.00 (likely in thousands of cubic meters per day or similar unit), indicating it is sized appropriately for its service population. The treated effluent is discharged into the local watershed, which ultimately drains into the Atlantic Ocean via the Loire estuary. The plant plays a key role in protecting the water quality of the Brivet River and downstream ecosystems, including the Brière Regional Natural Park, an ecologically sensitive wetland area.
Environmental context
The plant discharges into the Brivet River, a tributary of the Loire, which flows into the Atlantic Ocean near Saint-Nazaire. The downstream area includes the Brière marshes, a vast wetland complex that supports diverse aquatic life and migratory birds. Protecting this watershed is critical for maintaining water quality in the Loire estuary and coastal zone.
Frequently asked questions
The plant is located on D 773 in Brignard, Pontchâteau, in the Loire-Atlantique department of Pays de la Loire, France.
The plant serves approximately 5,633 people, classifying it as a small agglomeration under EU regulations.
Treated effluent is discharged into the Brivet River, which flows into the Loire estuary and eventually the Atlantic Ocean.
As a French plant, it operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which mandates secondary treatment for agglomerations of this size.
Under the EU directive, plants serving 2,000 to 10,000 population equivalents typically require secondary treatment, which includes biological processes to remove organic matter.
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