This report concerns the quality of water intended for human consumption, distributed during the 2017–2018–2019 period in the Brussels-Capital Region, with the aim of informing consumers of distributed water. The legal framework is defined by the Decree on the quality of water distributed through the network. This decree sets the quality standards the water must meet and outlines the obligations of the water supplier. As required by the decree, the report covers, at a minimum, all individual water supplies of more than 1,000 m³ per day on average or serving more than 5,000 people. In the Brussels-Capital Region, only one water supplier meets these conditions: VIVAQUA. Therefore, the report is limited to the water distributed by them. Water intended for human consumption is referred to as publicly distributed network water, tap water, or drinking water.

The dataset covers concentrations of pollutants subject to quality standard, pollutants posing a risk for environment and health, other pollutant and pollutant indicators mesured in groundwater characterised in the Frame Water Directive (2000/60/EC). The dataset also includes assessment of chemical status of groundwater and the identification and reversal of significant and sustained trends.

The dataset correponds to the nitrate content of raw groundwater intended for human consumption, monitored by Brussels Environment and supplemented by operators of drinkable groundwater abstraction points located in the nitrate-vulnerable zone delimited by DGBCR on 25 may 1999.

This dataset is based on measurements and inspections carried out by the scientific experts at Brussels Environment and presents the results of their investigations into all issues related to the evolution of water in the Brussels-Capital Region. In addition, the Bruwater application provided by Brussels Environment allows users to consult data on surface water and groundwater in the Brussels-Capital Region.

This dataset contains information on the water quality requirements for surface waters (rivers, lakes, coastal waters and transitional waters) of the Brussels region in order to protect the aquatic ecosystem and, by extension, human health.