Overview
OSSUN Nouvelle station is an advanced wastewater treatment plant in Ossun, Occitanie, France, serving 2,400 people with a designed capacity of 3,500 m³/day.
OSSUN Nouvelle station is a municipal wastewater treatment plant located in Ossun, a commune in the Hautes-Pyrénées department of Occitanie, southern France. The plant serves a population of approximately 2,400 residents and is part of the region's water infrastructure managed under French and EU regulations. The facility employs advanced treatment processes, which go beyond the secondary treatment required by the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this size. With a designed capacity of 3,500 m³/day and a current discharge volume of 428.16 m³/day, the plant operates well below its capacity, indicating room for future growth or seasonal variations. The treated effluent is discharged into the local watershed, which ultimately drains into the Adour River basin and then to the Bay of Biscay (Atlantic Ocean). The plant plays a key role in protecting the region's water quality, supporting aquatic life in downstream rivers and contributing to the ecological health of the Adour estuary.
Environmental context
The plant discharges into the Adour River basin, which flows through the Pyrénées-Atlantiques and Landes departments before reaching the Bay of Biscay. This watershed supports diverse aquatic ecosystems, including migratory fish species such as salmon and eels. The advanced treatment level helps minimize nutrient loading and protects downstream water quality in this ecologically sensitive region.
Frequently asked questions
The plant is located at Rue de Bellau, Lotissement de la Clotte, Ossun, Hautes-Pyrénées, Occitanie, France.
The plant serves approximately 2,400 residents in the commune of Ossun and surrounding areas.
The treated effluent is discharged into the local watershed, which flows into the Adour River basin and eventually reaches the Bay of Biscay in the Atlantic Ocean.
The plant uses advanced treatment processes, exceeding the secondary treatment standard required by the EU Urban Waste Water Treatment Directive for agglomerations of this size.
As a French plant serving over 2,000 people, it operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which mandates secondary treatment as a minimum. The advanced treatment level indicates compliance with stricter local or regional requirements for sensitive areas.
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