The document discusses the elements and role of monitoring in river basin management plans according to the EU Water Framework Directive. It explains that monitoring is important for verifying understanding of water bodies, identifying current and potential future issues, and tracking the effects of management measures. Monitoring includes both surveillance monitoring of all water bodies every six years and more frequent operational monitoring of bodies at risk. Quality assurance is essential to ensure relevance, procedures, training, and data accessibility. Risk-based monitoring is recommended, with denser monitoring in areas facing higher pressures like agriculture, population, and contaminated sites.