Overview
ASNIERES SUR OISE wastewater treatment plant serves Bruyères-sur-Oise, France, treating wastewater for approximately 46,300 people. It operates under France's implementation of the EU Urban Waste Water Treatment Directive.
The ASNIERES SUR OISE wastewater treatment plant is located in Bruyères-sur-Oise, within the Val-d'Oise department of northern France. It serves a population of approximately 46,300, classifying it as a medium-sized agglomeration under EU regulations. The plant is part of the municipal wastewater infrastructure for the broader Pontoise area. As a facility in France, the plant operates under the national transposition of the EU Urban Waste Water Treatment Directive (91/271/EEC). For agglomerations between 10,000 and 100,000 population equivalent, the directive requires secondary treatment as a minimum, with more stringent requirements if the receiving waters are designated as sensitive areas. The plant discharges treated wastewater into the local watershed, which ultimately drains into the Oise River, a major tributary of the Seine River. The Seine flows through Paris and into the English Channel. The Oise River supports diverse aquatic life and is an important ecological corridor in the region.
Environmental context
The plant's treated effluent enters the Oise River basin, which flows into the Seine River and eventually reaches the English Channel. The Oise River supports a variety of fish species and provides habitat for migratory birds. The Seine estuary is a critical ecological zone for aquatic biodiversity and nutrient cycling.
Frequently asked questions
The plant is located in Bruyères-sur-Oise, in the Val-d'Oise department of northern France, near Pontoise.
The plant serves approximately 46,300 people, classifying it as a medium-sized agglomeration under EU regulations.
The plant discharges treated effluent into the local watershed, which drains into the Oise River, a tributary of the Seine River, and ultimately into the English Channel.
The plant operates under France's implementation of the EU Urban Waste Water Treatment Directive (91/271/EEC), which mandates secondary treatment for agglomerations of this size.
Under the EU Urban Waste Water Treatment Directive, plants serving between 10,000 and 100,000 population equivalent are required to provide secondary treatment, with tertiary treatment if discharging into sensitive areas.
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