ARZON Kerners Wastewater Treatment Plant, Port Navalo, Brittany

ARZON Kerners is a wastewater treatment plant located in Port Navalo, Arzon, in the Brittany region of France. The plant serves a population of 22,128, placing it in the medium agglomeration category under EU classification. It is situated near the coast of the Gulf of Morbihan, a semi-enclosed sea connected to the Atlantic Ocean. As a French plant, ARZON Kerners operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations of this size discharging into coastal waters. The regulatory framework ensures that the plant meets standards for protecting sensitive marine environments. The treated effluent from ARZON Kerners likely discharges into the Gulf of Morbihan, a rich marine ecosystem that supports diverse aquatic life, including seagrass beds and migratory bird populations. The Gulf ultimately drains into the Atlantic Ocean, making the plant's performance critical for coastal water quality and regional biodiversity.

ARZON Kerners discharges into the Gulf of Morbihan, a semi-enclosed marine basin connected to the Atlantic Ocean. The Gulf is ecologically sensitive, supporting seagrass meadows, shellfish beds, and migratory birds. The plant's coastal location means its effluent quality directly affects this fragile marine environment, which is important for local fisheries and tourism.