Overview
MARTRES TOLOSANE 2 is an advanced wastewater treatment plant in Mauran, Occitanie, France, serving 1,422 people with a design capacity of 4,150 m³/day.
MARTRES TOLOSANE 2 is an advanced wastewater treatment plant located in Mauran, within the Occitanie region of southern France. The facility serves a population of 1,422 and is part of the municipal wastewater infrastructure for the area. 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. With a design capacity of 4,150 m³/day and a discharge volume of 253.68 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 Garonne River and then into the Atlantic Ocean. The plant's advanced treatment helps protect the Garonne basin and downstream ecosystems, including the Gironde estuary, from nutrient pollution and other contaminants.
Environmental context
The plant discharges into the Garonne River basin, which flows through southwestern France and into the Gironde estuary, a major ecological zone supporting diverse aquatic life and migratory fish species. The advanced treatment level helps reduce nutrient loads and protect water quality in this sensitive watershed, which is important for both biodiversity and human uses such as fishing and recreation.
Frequently asked questions
MARTRES TOLOSANE 2 is located in Mauran, a commune in the Haute-Garonne department of the Occitanie region in southern France.
The plant serves a population of 1,422 people, classifying it as a small agglomeration under EU wastewater directives.
The treated effluent is discharged into the local watershed, which drains into the Garonne River and eventually reaches the Atlantic Ocean via the Gironde estuary.
The plant provides advanced treatment, which includes nutrient removal beyond secondary treatment, in line with EU standards for sensitive areas.
As a French plant serving fewer than 2,000 people, it operates under the EU Urban Waste Water Treatment Directive (91/271/EEC), which mandates appropriate treatment based on the receiving water's sensitivity.
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