According to the water framework directive (Directive 2000/60/CE), the biological parameter fish are monitored in surface water bodies in order to determine the ecological status. Fish react sensitively to the continuity and the hydrological flow of surface water. Fish are therefor sampled in the SWB which have deficits here. The methodology applied for sampling is the standard NF EN 14962:2006 "water quality − guidance on the scope and selection of fish sampling methods".

Drinking water shortage (level « orange »)

The evaluation of the hydromorphological structure of surface water is made in two steps: First the method for the surface water development ability is applied. For this method the current structure of the surface water is analyzed for the different surface water sections. Constructing on the section-referred evaluation a total evaluation of the surface water development ability per surface water body takes place.

All artificial water expanses and basins.

Repertoire of all wetlands in Luxembourg as marshy lands and areas and alluvial forests.

Status of the water bodies 2009

All natural water expanses and basins.

Chemical status of the water bodies 2009

Surface water courses that are part of the monitoring network.

Luxembourg's surface water bodies have been grouped into so-called "study zones", which essentially correspond to the country's major catchment areas. Seven study zones have been designated in total.