LE PLAN D ORGON Wastewater Treatment Plant, Plan-d'Orgon, Provence-Alpes-Côte d'Azur

LE PLAN D ORGON is a wastewater treatment plant located in Plan-d'Orgon, a commune in the Bouches-du-Rhône department of Provence-Alpes-Côte d'Azur, southern France. The plant serves a population of approximately 2,720 people and operates with secondary treatment, which is the standard biological treatment required under the EU Urban Waste Water Treatment Directive (91/271/EEC) for agglomerations of this size. The plant has a designed capacity of 3,500 m³/day and currently treats an average daily volume of 485.24 m³. As a small agglomeration (under 10,000 population equivalent), the plant is subject to EU regulations that mandate secondary treatment for inland discharges. The plant's treatment process ensures that organic matter and suspended solids are reduced to acceptable levels before discharge. The facility is part of France's national wastewater infrastructure, overseen by regional water agencies that enforce compliance with European standards. The treated effluent from LE PLAN D ORGON is discharged into the local watershed, which ultimately drains into the Rhône River basin. The Rhône is one of Europe's major rivers, flowing into the Mediterranean Sea. The plant's operations help protect downstream water quality in the Rhône delta and the Camargue region, an ecologically sensitive area known for its wetlands and diverse birdlife.

The plant discharges into the local watershed that feeds into the Rhône River, which flows southward through the Camargue region into the Mediterranean Sea. The Rhône delta supports extensive wetlands and is a critical habitat for migratory birds and aquatic species. Secondary treatment reduces organic pollutants, helping to maintain the ecological balance of this important river system.