Overview
SAINT OMER wastewater treatment plant serves Saint-Omer in Hauts-de-France, France, with a population equivalent of 71,217. The facility operates under the EU Urban Waste Water Treatment Directive.
The SAINT OMER wastewater treatment plant is located in Saint-Omer, Hauts-de-France, France, serving a population of approximately 71,217. Situated in the Aa river basin, the plant plays a key role in managing municipal wastewater for this historic town and its surrounding communities. As a medium-to-large agglomeration under the EU Urban Waste Water Treatment Directive (91/271/EEC), the plant is expected to provide at least secondary treatment, with tertiary treatment required if the receiving waters are designated as sensitive areas. The designed capacity of the plant is 1.00 (likely in thousands of cubic meters per day), indicating a facility sized to handle the local population load. The treated effluent is discharged into the Aa River, which flows through the Marais Audomarois, a vast wetland area of ecological importance, before reaching the North Sea via the Calais region. The plant's operation is critical for protecting this sensitive aquatic ecosystem and downstream water quality.
Environmental context
The plant discharges into the Aa River, which flows through the Marais Audomarois, a large wetland complex that supports diverse birdlife and aquatic species. The river ultimately drains into the North Sea near Calais. The wetland acts as a natural buffer, but nutrient loading from wastewater could impact this sensitive environment, making effective treatment essential.
Frequently asked questions
The plant is located at Route de Saint-Momelin, Le Doulac, Saint-Omer, Pas-de-Calais, Hauts-de-France, France.
The plant serves a population equivalent of 71,217 people.
The treated effluent is discharged into the Aa River, which flows through the Marais Audomarois wetland and eventually reaches the North Sea.
As a French plant serving over 10,000 people, it operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which mandates secondary treatment and potentially tertiary treatment in sensitive areas.
Under the EU UWWTD, agglomerations above 15,000 population equivalent require at least secondary treatment. If the receiving water is a sensitive area, tertiary treatment for nutrient removal is also required.
Nearby plants