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Notes: The percentage is calculated against the total number of classified water bodies, i.e. total number of water bodies reported where quality elements were identified are for rivers: 75763, for lakes: 13849, for transitional waters: 629, for coastal waters: 2225. “Monitored” means WBs with at least one monitoring station for that particular QE. This percentage is most likely underestimated, because a) some member states have not reported monitoring stations (Poland, Hungary, Ireland, Latvia, Lithuania, Slovakia and Estonia (transitional and coastal only)) and b) it seems to be an underreporting of monitoring stations where only non-BQEs are monitored. “Classified” means WBs with status information for that particular QE. Here too this may be an incorrect estimate, as the member states have interpreted this reporting differently. The member states were asked only to report status class for WBs were the QE was monitored. Status can also be set based on grouping or expert judgement (see text). In practice, some member states have reported status class also when the QE has not been monitored, others have not. Hence, if regarding “Classified” as all WBs with status information on a particular QE, regardless of method for setting that status, the results shown are likely to be underestimated. If possible, the Member States should help clarifying how they have reported monitoring stations and classification of single QEs.