CHATEAULIN Kerdour Wastewater Treatment Plant, Châteaulin, Bretagne

The CHATEAULIN Kerdour wastewater treatment plant is located in Châteaulin, within the Finistère department of Bretagne, France. It serves a population of approximately 9,805 people, classifying it as a medium-sized agglomeration under French and EU regulations. The plant's designed capacity is 1.00 m³/day, indicating a facility sized for the local community's needs. As a French wastewater treatment plant, CHATEAULIN Kerdour 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. The plant's treatment process and operational status are consistent with standard practices for facilities serving similar populations in the region. The treated effluent from CHATEAULIN Kerdour is discharged into the local watershed, which ultimately drains into the Atlantic Ocean via the Aulne River and the Bay of Brest. This coastal environment supports diverse aquatic life and is an important ecological area. The plant plays a key role in protecting downstream water quality and the marine ecosystem.

The CHATEAULIN Kerdour plant discharges into the Aulne River, which flows into the Bay of Brest and then the Atlantic Ocean. This coastal watershed supports diverse aquatic life, including migratory fish species, and is ecologically sensitive due to its proximity to the marine environment. The plant's operations help maintain water quality in this important estuary and coastal zone.