Overview
MARINES wastewater treatment plant in Marines, Val-d'Oise, France, serves 3,817 people with advanced treatment. It discharges 680.95 m³/day and has a designed capacity of 3,300 m³/day.
The MARINES wastewater treatment plant is located in the commune of Marines, within the Val-d'Oise department of northern France. It serves a population of approximately 3,817 residents and operates under the French regulatory framework, which implements the EU Urban Waste Water Treatment Directive (91/271/EEC). As a small agglomeration, it is required to provide appropriate treatment to protect the local environment. The plant employs advanced treatment processes, ensuring a high level of pollutant removal before discharge. It has a designed capacity of 3,300 m³/day and currently treats an average daily flow of 680.95 m³/day, indicating significant spare capacity. The facility is operated as part of the municipal wastewater infrastructure for the community. Treated effluent is discharged into the local watershed, which ultimately drains into the Seine River basin. The Seine flows through Paris and into the English Channel, supporting diverse aquatic life and providing water for agriculture and recreation. The plant's advanced treatment helps protect downstream water quality and the ecological health of the Seine estuary.
Environmental context
The plant discharges into the Viosne River, a tributary of the Oise River, which joins the Seine River near Conflans-Sainte-Honorine. The Seine flows through the Paris metropolitan area and empties into the English Channel via the Seine estuary. This watershed supports important fish populations, including migratory species such as Atlantic salmon and eel, and provides habitat for waterbirds in the estuary's mudflats and marshes.
Frequently asked questions
The MARINES plant is located in the Zone d'activités de L'Isle, La Métairie, Marines, in the Val-d'Oise department of northern France.
The plant serves approximately 3,817 residents in the commune of Marines and surrounding areas.
Treated effluent is discharged into the local watershed, which flows into the Viosne River, a tributary of the Oise River, and eventually reaches the Seine River and the English Channel.
The plant provides advanced treatment, which goes beyond secondary treatment to remove nutrients and other pollutants, ensuring high-quality effluent.
The plant operates under the French implementation of the EU Urban Waste Water Treatment Directive (91/271/EEC). For small agglomerations like Marines, the directive requires appropriate treatment to protect receiving waters, and advanced treatment is often applied in sensitive areas.
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