On the Volgermeerpolder, between Amsterdam and Broek-in-Waterland, the (ecological) water quality has been monitored for several years by Research Centre B-WARE. This as part of the development of wetland nature goals. Clear and plant-rich water in the sawas and watercourses is aimed at by the municipality of Amsterdam. Clear water provides a habitat for many different plant and animal species. Eventually, the aim in the sawas is also to achieve terrestrialisation and peat formation. Monitoring helps to track development, evaluate and identify any bottlenecks in time.