Ully Saint Georges Bourg Wastewater Treatment Plant, Ully-Saint-Georges, Hauts-de-France

Ully Saint Georges Bourg is an advanced wastewater treatment plant located in Ully-Saint-Georges, a commune in the Oise department of Hauts-de-France, France. The plant serves a population of approximately 2,794 residents, reflecting its role as a small-scale municipal facility in a rural setting. The plant employs advanced treatment processes, which go beyond the secondary treatment required by the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this size. With a designed capacity of 4,000 m³/day and a discharge volume of 498.44 m³/day, the facility operates well within its capacity, ensuring effective treatment of local wastewater. The treated effluent is discharged into the local watershed, which ultimately drains into the Oise River, a major tributary of the Seine. The Seine River flows through Paris and into the English Channel, making the plant's advanced treatment important for protecting downstream water quality and aquatic ecosystems.

The plant discharges into the local water system that feeds the Oise River, a key tributary of the Seine. The Seine basin supports diverse aquatic life and is an important ecological corridor in northern France. Advanced treatment helps minimize nutrient and pollutant loads, protecting the river's health and the downstream marine environment of the English Channel.