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  • The lake "Haute Sure" in Esch-sur-Sûre

  • The surveillance monitoring is carried out respecting the luxemburgish legislation (règlement grand-ducal du 15 janvier 2016) on 4 monitoring sites. Three of them are located in the international river basin district of the Rhine, one is located in the inernational river basin district of the Meuse.

  • Drinking water shortage (level « orange »)

  • In the detailed programme of measures, the types of measures related to hydromorphology (HY) and urban wastewater management (SWW) which are defined in the catalogue of measures of the second river basin management plan, were assigned to the individual water bodies. The objective of this assignation is to identify for each water body those measures that will help to reduce the pressures and deficits present in the water body, thereby improving its status or maintaining its good status. The hydromorphological measures include the improvement of the ecological continuity, the renaturation of water courses as well as the regulation of the minimal flow. Some hydromorphological types of measures can have a positive effect on the reduction of floods.

  • Drinking water shortage (level « red »)

  • Overall evaluation of the hydromorphological status per surface water body. It is a “pessimistic assessment” because only the worst of the two parameters morphology an continuity is retained. The hydromorphological status is assessed in 5 classes.

  • According to the water framework directive WFD(DIR 2000/60/CE), important physico chemical parameters are measured in the surface water bodies for the assessment of the ecological status. The modalities for this monitoring are stated in the grand ducal Regulation of 30 December 2010 (règlement grand-ducal you 30 décembre 2010 concernant l 'évaluation of the dimension d' eau de surface).

  • Chemical status of the water bodies 2009

  • 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".

  • Overall evaluation of the hydromorphological status per surface water body. The assessment of the hydromorphological status is based on the mapping and the assessment of the structural quality of the Luxembourgish watercourses. The quality element “morphology” has not been covered in the framework of the structural quality mapping, but only the two quality elements related to continuity and morphology. The hydromorphological status is assessed in 5 classes.