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Monitoring Water Bodies in the Netherlands: State of Affairs

This report by Jos Timmerman of RIZA provides insights on monitoring network development for the Water Framework Directive in the Netherlands, covering aspects such as waterbody types, risks, management, and monitoring guidelines. Discussions on biological monitoring objectives, waterbody aggregation, protected areas, and cost efficiency are highlighted.

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Monitoring Water Bodies in the Netherlands: State of Affairs

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  1. Monitoring network development for the WFD in The Netherlands: State of affairs Jos Timmerman RIZA

  2. Some figures: • 1300 Waterbodies, 40 types, still under discussion • Only very few natural waters • Most waters thought to be at risk in 2015 • Lakes, rivers, transitional waters and coast • Managed by 37 watermanagers (27+ 10) • Divided in 4 catchment areas : Rhine, Meuse, Scheldt and Eems

  3. Monitoring • Guidelines ready for ecology and chemical substances • Discussion on number of waterbodies to be monitored for ecology • Most of the watermanagers are already monitoring chemicals • In particular fish monitoring new to many watermanagers • Minimum frequency has been chosen

  4. Example: Points of discussion for Biological Monitoring • Artificial en Heavily modified : what will be the objectives? • How to aggregate waterbodies? • How to deal with protected area’s and Groundwater bodies? Which objectives are leading? • Cost efficiency, what is reasonable? • Quality of measurements and statistics

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