Overview
ENNEZAT Bourg is a secondary wastewater treatment plant serving 1,660 people in Ennezat, Auvergne-Rhône-Alpes, France. It discharges 296.14 m³/day of treated effluent into the local watershed.
ENNEZAT Bourg is a municipal wastewater treatment plant located in the commune of Ennezat, within the Puy-de-Dôme department of the Auvergne-Rhône-Alpes region in central France. The plant serves a population of approximately 1,660 residents, classifying it as a small agglomeration under French and EU regulations. The facility provides secondary biological treatment, which is the standard minimum required by the EU Urban Waste Water Treatment Directive (91/271/EEC) for freshwater discharges from agglomerations of this size. The plant has a designed capacity of 1,250 m³/day and currently treats an average daily flow of 296.14 m³, indicating significant spare capacity for future growth or seasonal variations. Treated effluent from the plant is discharged into the local watercourse, which ultimately drains into the Allier River, a major tributary of the Loire River. The Loire basin supports diverse aquatic ecosystems and is an important migratory corridor for fish species such as Atlantic salmon and European eel. The plant's secondary treatment helps protect downstream water quality in this ecologically sensitive river system.
Environmental context
The plant discharges into a small stream that flows into the Allier River, a key tributary of the Loire River. The Loire basin is one of France's largest watersheds, supporting diverse aquatic life and providing critical habitat for migratory fish. Secondary treatment reduces organic pollutants and suspended solids, helping maintain water quality in the downstream river network.
Frequently asked questions
The plant is located on D 210 in Ennezat, in the Puy-de-Dôme department of the Auvergne-Rhône-Alpes region, France.
The plant serves approximately 1,660 residents of the commune of Ennezat and surrounding areas.
The plant discharges treated effluent into a local stream that flows into the Allier River, a major tributary of the Loire River.
The plant provides secondary biological treatment, meeting the standard required by the EU Urban Waste Water Treatment Directive for freshwater discharges from small agglomerations.
French wastewater treatment plants operate under the EU Urban Waste Water Treatment Directive (91/271/EEC), which mandates secondary treatment for agglomerations above 2,000 population equivalent discharging to freshwater. For smaller plants like ENNEZAT Bourg, appropriate treatment is required to meet local water quality objectives.
Nearby plants