HERRLISHEIM PRES COLMAR Wastewater Treatment Plant, Meyenheim, Grand Est, France

HERRLISHEIM PRES COLMAR is a wastewater treatment plant located in Meyenheim, within the Grand Est region of France. The facility serves a population of approximately 2,600 people and is situated near the Ill River, a tributary of the Rhine. As a secondary treatment plant, it provides biological treatment to reduce organic matter and suspended solids before discharge. The plant has a designed capacity of 2,200 m³/day and currently treats an average daily flow of 463.84 m³/day. Under the EU Urban Waste Water Treatment Directive (91/271/EEC), secondary treatment is the standard requirement for agglomerations of this size, ensuring compliance with European environmental standards. The plant operates within France's national regulatory framework, which implements the directive through local permits and monitoring. The treated effluent is discharged into the Ill River, which flows into the Rhine, one of Europe's major waterways. The Rhine basin supports diverse aquatic life and is an important ecological corridor. The plant's secondary treatment helps protect water quality in the Ill and downstream Rhine ecosystem, contributing to the overall health of the river system.

The plant discharges into the Ill River, a tributary of the Rhine River. The Rhine basin is a major European waterway supporting diverse aquatic species and serving as a critical migratory corridor for fish. The Ill River flows through the Alsace region, an area known for its rich biodiversity and agricultural significance. Secondary treatment helps reduce nutrient loads and organic pollution, protecting downstream water quality and the ecological balance of the Rhine delta.