RUGLES 2 Wastewater Treatment Plant, Rugles, Normandie, France

RUGLES 2 is a municipal wastewater treatment plant located in Rugles, a commune in the Eure department of Normandie, France. The plant serves a population of around 2,464 and has a designed capacity of 4,083 cubic meters per day, with an average discharge volume of 439.57 m³/day. As a secondary treatment facility, RUGLES 2 provides biological treatment to remove organic matter and suspended solids. Under the EU Urban Waste Water Treatment Directive (91/271/EEC), secondary treatment is the standard requirement for inland freshwater discharges from agglomerations of this size, ensuring compliance with European water quality standards. The plant discharges treated effluent into the local watershed, which ultimately drains into the Risle River and then into the Seine estuary and the English Channel. This waterway supports diverse aquatic life and is part of the broader Seine-Normandy basin, an ecologically important region for migratory fish and wetland habitats.

The treated effluent from RUGLES 2 flows into the Risle River, a tributary of the Seine, which empties into the English Channel via the Seine estuary. The Risle River supports a variety of freshwater species and is part of a watershed that includes important wetland and floodplain areas. Downstream, the Seine estuary is a critical habitat for migratory birds and fish, including salmon and eel, making the plant's secondary treatment essential for protecting downstream water quality.