Overview
MARQUISE SE is a wastewater treatment plant serving approximately 9,833 people in Marquise, Hauts-de-France, France. It is located within 50 km of the coast and discharges into the local watershed.
MARQUISE SE is a municipal wastewater treatment plant located in Marquise, a commune in the Pas-de-Calais department of Hauts-de-France, France. The plant serves a population of around 9,833, placing it in the small-to-medium agglomeration category under French regulations. As a French wastewater facility, MARQUISE SE operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations of this size. The plant's treated effluent is discharged into the local watershed, which ultimately drains into the English Channel via the Slack River or nearby coastal streams. This coastal proximity means the plant plays a role in protecting the marine environment of the Opal Coast, an area known for its diverse aquatic life and migratory bird populations.
Environmental context
The plant's discharge enters the local river system, which flows into the English Channel near the Opal Coast. This coastal zone supports diverse marine habitats, including estuaries and sandy shores, and is an important corridor for migratory birds and fish species. The proximity to the coast means that effective treatment is essential to prevent nutrient enrichment and protect water quality in the Channel.
Frequently asked questions
MARQUISE SE is located in Marquise, a commune in the Pas-de-Calais department of Hauts-de-France, France. The full address is D 241, Marquise, Boulogne-sur-Mer, Pas-de-Calais, Hauts-de-France, 62250.
MARQUISE SE serves approximately 9,833 people, classifying it as a small-to-medium agglomeration under the EU Urban Waste Water Treatment Directive.
MARQUISE SE discharges treated effluent into the local river system, which flows into the English Channel. The plant is within 50 km of the coast, so its discharge ultimately reaches the marine environment.
As a French wastewater plant, MARQUISE SE operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which mandates secondary treatment for agglomerations of its size. French regulations also require compliance with national water quality standards.
For agglomerations of around 10,000 population equivalent, the EU UWWTD requires secondary treatment (biological treatment). Many French plants also incorporate tertiary treatment if discharging into sensitive areas, such as coastal zones.
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