Overview
SAINT SEURIN SUR L ISLE wastewater treatment plant serves Porchères, Nouvelle-Aquitaine, France. It provides advanced treatment for a population of 2,202, discharging treated water into the local watershed.
The SAINT SEURIN SUR L ISLE wastewater treatment plant is located in Porchères, within the Gironde department of Nouvelle-Aquitaine, France. It serves a population of approximately 2,200 people, making it a small agglomeration under French regulations. The plant is situated along the Route de l'Entre Deux Mers, near the Isle River. The plant employs advanced treatment processes, which go beyond the secondary treatment required by the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this size. With a designed capacity of 3,000 cubic meters per day and a current discharge volume of about 393 cubic meters per day, the facility operates well within its capacity. Advanced treatment ensures high-quality effluent, reducing nutrients and pollutants before discharge. The treated wastewater is discharged into the Isle River, a tributary of the Dordogne River, which flows into the Gironde estuary and ultimately the Atlantic Ocean. This watershed supports diverse aquatic life and is important for regional water quality. The plant's advanced treatment helps protect the downstream ecosystem, including the Gironde estuary, a critical habitat for migratory fish species.
Environmental context
The plant discharges into the Isle River, which flows into the Dordogne River and then the Gironde estuary, a major Atlantic coastal ecosystem. The estuary supports diverse aquatic life, including migratory fish such as salmon and eels. Advanced treatment at this plant helps minimize nutrient loading and protects water quality in this ecologically sensitive watershed.
Frequently asked questions
The plant is located in Porchères, in the Gironde department of Nouvelle-Aquitaine, France, along the Route de l'Entre Deux Mers near the Isle River.
The plant serves a population of approximately 2,202 people, classifying it as a small agglomeration under French and EU regulations.
The treated wastewater is discharged into the Isle River, which flows into the Dordogne River and then the Gironde estuary, eventually reaching the Atlantic Ocean.
The plant provides advanced treatment, which exceeds the secondary treatment standard required by the EU Urban Waste Water Treatment Directive for small agglomerations.
As a French plant, it operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which mandates secondary treatment for agglomerations over 2,000 population equivalent, with additional nutrient removal in sensitive areas.
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