FORMERIE Wastewater Treatment Plant, Canny-sur-Thérain, Hauts-de-France

FORMERIE is a wastewater treatment plant located in Canny-sur-Thérain, a commune in the Oise department of Hauts-de-France, France. The plant serves a population of approximately 9,086 people, classifying it as a medium-sized agglomeration under European Union regulations. It is situated in a rural area near the Thérain River, a tributary of the Oise River. As a French facility, FORMERIE 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 receiving waters are designated as sensitive areas. Typical plants in this region employ biological treatment followed by clarification. The treated effluent from FORMERIE is discharged into the local watershed, which flows into the Thérain River, then the Oise River, and ultimately the Seine River before reaching the English Channel. This waterway supports diverse aquatic life and is an important ecological corridor in the region. The plant plays a key role in protecting water quality in this sensitive river system.

The FORMERIE plant discharges into the Thérain River, a tributary of the Oise River, which flows into the Seine River and eventually the English Channel. This watershed supports diverse aquatic ecosystems and is used for recreation and agriculture. The plant's operation helps maintain water quality in this ecologically sensitive area, which is part of the larger Seine-Normandy basin.