Overview
RESSONS SUR MATZ is an advanced wastewater treatment plant in Marquéglise, Hauts-de-France, France, serving 3,528 people with a designed capacity of 8,000 m³/day and discharging 629.39 m³/day.
RESSONS SUR MATZ is an advanced wastewater treatment plant located in Marquéglise, within the Oise department of Hauts-de-France, France. The plant serves a population of 3,528 and has a designed capacity of 8,000 m³/day, with an average discharge volume of 629.39 m³/day. The plant employs advanced treatment processes, which go beyond secondary treatment to remove nutrients and other pollutants. As a facility in France, it operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires advanced treatment for discharges into sensitive areas. The plant's capacity suggests it is sized for a moderate agglomeration, and its advanced treatment level indicates compliance with stringent environmental standards. The treated effluent is discharged into local watercourses that ultimately drain into the Seine River basin and the English Channel. The plant plays a key role in protecting the Oise River and downstream ecosystems from nutrient pollution, supporting water quality in a region known for its agricultural and natural landscapes.
Environmental context
The plant discharges into the local watershed, which feeds into the Oise River, a major tributary of the Seine. The Seine flows through Paris and into the English Channel, supporting diverse aquatic life and providing drinking water for millions. The advanced treatment helps reduce nutrient loads, protecting downstream waters from eutrophication and maintaining ecological balance in the Seine estuary.
Frequently asked questions
RESSONS SUR MATZ is located on D 41 in Marquéglise, within the Oise department of Hauts-de-France, France.
The plant serves a population of 3,528 people, classifying it as a small to medium agglomeration under EU classifications.
The treated effluent is discharged into local watercourses that flow into the Oise River, a tributary of the Seine, ultimately reaching the English Channel.
The plant provides advanced treatment, which includes nutrient removal beyond secondary treatment, in line with EU requirements for sensitive areas.
As a French plant, it operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which mandates advanced treatment for discharges into sensitive catchments like the Seine basin.
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