River bathing waters and quality classifications in the EU-27 and Switzerland, 2025

Additional info

Version 4 (2026-04-17), Based on final draft assessment after consultation with reporting countries; Belgium added in group sample replication.

Methodology

Attributive (quality classification) and spatial (geometry) data were extracted from the BWD production database hosted on the EEA CWS Wigeon MSSQL server.

Quality classification data were obtained from BWD_Production.assessmentResults.statusOverview, while spatial point data were extracted from BWD_Production.spatial.SPATIAL_ProtectedArea.

The dataset was filtered to include river bathing sites only (e.g., specialisedZoneType = 'rverBathingWater').

The map therefore shows river bathing waters in Europe and its overseas territories, coloured according to the water quality class achieved in the latest (2025) bathing season: Excellent (dark blue), Good (medium blue), Sufficient light blue), Poor (red), and Not classified (grey).