KERVIGNAC Le Porzo Wastewater Treatment Plant, Hennebont, Bretagne

KERVIGNAC Le Porzo is a wastewater treatment plant located in Hennebont, in the Morbihan department of Bretagne, France. The plant serves a population of approximately 7,866 people, placing it in the small-to-medium agglomeration category under EU regulations. As a French facility, the plant operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations of this size. The plant's designed capacity is 1.00 (likely in thousands of cubic meters per day), indicating it is sized to handle the local wastewater load. French plants typically employ biological treatment to meet EU standards. The plant discharges treated effluent into the local watershed, which ultimately drains into the Atlantic Ocean via the Blavet River and the Lorient estuary. The downstream environment supports diverse aquatic life and is an important coastal zone for fisheries and recreation. Proper treatment helps protect the sensitive marine ecosystem of the Bay of Biscay.

The plant's treated effluent flows into the Blavet River catchment, which empties into the Lorient estuary and then the Atlantic Ocean. This coastal zone supports diverse marine life, including fish nurseries and migratory bird populations. The region's estuaries are ecologically sensitive areas that benefit from effective wastewater treatment to maintain water quality and biodiversity.