Overview
The GISORS wastewater treatment plant serves the commune of Gisors in Normandy, France, with a population equivalent of 14,000. It operates under the EU Urban Waste Water Treatment Directive.
The GISORS wastewater treatment plant is located in Gisors, a commune in the Eure department of Normandy, France. The plant serves a population equivalent of 14,000, placing it in the medium agglomeration category under EU regulations. Its precise location along the D 14b road positions it within the Seine-Normandy river basin. As a French wastewater facility, GISORS operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations of this size. The directive also mandates more stringent treatment if the discharge enters sensitive areas, which are designated by member states. The plant's treatment process and capacity details are not publicly available, but compliance with the directive ensures a minimum level of treatment appropriate for its scale. The treated effluent from GISORS is discharged into the local watershed, which ultimately drains into the Seine River and then the English Channel. The Seine basin supports diverse aquatic life and is an important ecological corridor in northwestern France. The plant's operations contribute to protecting downstream water quality in this sensitive river system.
Environmental context
The GISORS plant discharges into the Eure River, a tributary of the Seine, which flows into the English Channel. The Seine estuary is a critical habitat for migratory fish species such as salmon and eel. The watershed supports agricultural and urban areas, making effective wastewater treatment essential for maintaining water quality and ecological balance in the region.
Frequently asked questions
The GISORS plant is located in Gisors, a commune in the Eure department of Normandy, France, along the D 14b road.
The plant serves a population equivalent of 14,000, classifying it as a medium-sized agglomeration under EU regulations.
The treated effluent is discharged into the local watershed, which flows into the Eure River, a tributary of the Seine, and ultimately reaches the English Channel.
The plant operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which mandates secondary treatment for agglomerations of this size and may require additional treatment if the receiving water is sensitive.
Under the EU directive, plants serving 10,000 to 150,000 population equivalent typically require secondary treatment. In France, this is often achieved through activated sludge or biological filtration processes.
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