Overview
MARSSAC SUR TARN Ville is an advanced wastewater treatment plant in Marssac-sur-Tarn, Occitanie, France, serving approximately 1,970 people with a designed capacity of 1,900 m³/day.
MARSSAC SUR TARN Ville is an advanced wastewater treatment plant located in Marssac-sur-Tarn, a commune in the Tarn department of Occitanie, southern France. The plant serves a population of about 1,970 residents and has a designed capacity of 1,900 cubic meters per day, with an average discharge volume of 351.44 m³/day. The plant employs advanced treatment processes, which go beyond secondary treatment to remove nutrients and other pollutants. Under the EU Urban Waste Water Treatment Directive (91/271/EEC), France requires appropriate treatment for agglomerations of this size, and advanced treatment is often mandated in sensitive areas to protect water quality. The treated effluent is discharged into the local watershed, which ultimately drains into the Tarn River, a tributary of the Garonne. The Garonne flows into the Gironde estuary and then the Atlantic Ocean. The plant plays a key role in protecting the Tarn River and downstream ecosystems from nutrient pollution and organic matter.
Environmental context
The plant discharges into the Tarn River basin, which flows through the Occitanie region and joins the Garonne River. The Garonne estuary and the Atlantic Ocean are the ultimate receiving waters. The Tarn River supports diverse aquatic life and is important for regional biodiversity. Advanced treatment helps reduce nutrient loads that could cause eutrophication in downstream waters.
Frequently asked questions
The plant is located at 14 Rue des Lizes, Le Verdier, Marssac-sur-Tarn, in the Tarn department of Occitanie, France.
The plant serves approximately 1,970 residents in the Marssac-sur-Tarn area.
The treated effluent is discharged into the local watershed, which drains into the Tarn River, a tributary of the Garonne River, eventually reaching the Atlantic Ocean.
The plant provides advanced treatment, which includes nutrient removal and is often required in sensitive areas under the EU Urban Waste Water Treatment Directive.
The plant operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), transposed into French law. For agglomerations of this size, appropriate treatment is required, and advanced treatment is mandated in sensitive catchments to protect water bodies.
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