Bourgoin-Jallieu 2 Wastewater Treatment Plant, France

Bourgoin-Jallieu 2 is a wastewater treatment plant located in the commune of Bourgoin-Jallieu, within the Isere department of the Auvergne-Rhone-Alpes region in southeastern France. The plant serves a population of around 82,150, classifying it as a medium-to-large agglomeration under EU classification. As a French facility, the plant is subject to the EU Urban Waste Water Treatment Directive (91/271/EEC), which requires secondary treatment for agglomerations of this size. For plants in sensitive areas, tertiary treatment may be mandated to reduce nutrient loads. Compliance with the directive ensures a minimum level of treatment before discharge. The treated effluent is likely discharged into the Bourbre River, which flows through the region and eventually joins the Rhone River, a major watercourse that drains into the Mediterranean Sea. The plant plays a vital role in protecting the local aquatic ecosystem and downstream water quality in the Rhone basin.

The plant discharges into the Bourbre River, a tributary of the Rhone River, which ultimately flows into the Mediterranean Sea. The Rhone basin supports diverse aquatic life and is an important ecological corridor. The plant's operations help reduce nutrient and pollutant loads, protecting downstream habitats and water quality in the Mediterranean coastal zone.