Survey of spawning grounds in the area of the planned discharge
Mapping of aquatic habitats
Multimetric macroinvertebrate indices (I2M2) according to applicable standards
Assessment of the initial biological status for future bio-evaluation of the discharge impact
Recommendations for the location of the discharge point
Evaluation of potential pressures on water quality
Analysis of current data and projection of future data
Recommendations for mitigation measures to minimize impacts on the receiving natural environment
Contact
Luxlait WWTP Extension Project
Hydrology
As part of the extension of Luxlait Association Agricole’s wastewater treatment plant (WWTP) and the connection of its discharge point to the Attert River, the Administration of Water Management (AGE) aimed to assess the potential ecological impact on the river’s spawning areas.
Our mission included:
Identifying spawning zones according to fish species and proposing an optimal discharge point in relation to these sensitive areas.
Mapping habitats and analyzing water levels and flow velocities to determine the biological potential of the studied zones.
Establishing an initial biological quality assessment of the Attert using benthic macroinvertebrates and the I2M2 index (standards NF T90-333 and NF T90-388), which will serve as a reference for monitoring after the discharge becomes operational.
Contracting authority Luxlait
Etude 2024
Key features
Our missions
Assessment of the environmental impacts of the WWTP extension project on the receiving aquatic environments
Overview of the receiving water bodies and ecological status objectives according to the amended law of 19 December 2008 on water
Project description and definition of impacts
Evaluation of impacts on the receiving watercourses