Overview
LAGARRIGUE Bourg is an advanced wastewater treatment plant in Lagarrigue, Occitanie, France, serving 1,210 people with a designed capacity of 1,900 m³/day.
LAGARRIGUE Bourg is a wastewater treatment plant located in Lagarrigue, a commune in the Tarn department of Occitanie, southern France. The plant serves a population of 1,210 and has a designed capacity of 1,900 cubic meters per day, with a current discharge volume of 215.86 cubic meters per day. The plant 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. Advanced treatment typically includes nutrient removal (nitrogen and phosphorus) to protect sensitive receiving waters. The treated effluent is discharged into the local watershed, which ultimately drains into the Tarn River and then the Garonne River, flowing into the Atlantic Ocean via the Gironde estuary. The plant plays a key role in protecting the water quality of the Tarn River and downstream ecosystems.
Environmental context
The plant discharges into the Tarn River basin, a tributary of the Garonne River, which flows into the Atlantic Ocean. The Tarn River supports diverse aquatic life and is used for recreation and agriculture. Advanced treatment helps reduce nutrient loading, which is critical for preventing eutrophication in downstream waters.
Frequently asked questions
LAGARRIGUE Bourg is located in Lagarrigue, a commune in the Tarn department of Occitanie, southern France.
The plant serves a population of 1,210 people.
The treated wastewater is discharged into the local watershed, which drains into the Tarn River and eventually the Garonne River and Atlantic Ocean.
The plant provides advanced treatment, which includes nutrient removal beyond secondary treatment, in line with EU standards for sensitive areas.
Under the EU UWWTD, agglomerations with a population equivalent above 2,000 require secondary treatment. Although this plant serves 1,210 people, its advanced treatment exceeds the directive's minimum requirements, likely due to local environmental sensitivities.
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