Brussels-Capital Region : toponymy public spaces is the name of : - Highways; - Areas of water; - Green areas; - Cemeteries.

Brussels-Capital Region : The Digital Terrain Model (DTM) describes the three-dimensional shape of the surface of the Earth (topography of the surface). The Digital Terrain Model (DTM) is available in three different representations: - Elevation - vector elements; - Elevation - Grid; - Elevation - TIN.

Brussels-Capital Region : spatial extents of the stratigraphic units (SU/BCR), SU/BCR_011 Backfill and SU/BCR_12 Silts cover excepted. This data is limited to the Brussels-Capital Region’s border extended with a 500 m buffer zone. The hydrogeological unit (HU/BCR) of each SU/BRC is indicated in the attribute data. These spatial extents were extracted from the BruStrati3D v1.1 geological model, except for the extensions of the quaternary units which were extracted from the Databank Ondergrond Vlaanderen database. This data is generated from models and may contain errors, inaccuracies and gaps. It has informative value and may under no circumstances replace a study carried out by an expert. Bruxelles Environnement cannot be held liable for the consequences of the use of this information.

Brussels-Capital Region: Contour lines give an overview of the real ground on a topographic map. A contour line is the intersection of real terrain with a horizontal plane of given elevation. Contour lines are obtained from the Digital Terrain Model (DTM).

Brussels-Capital Region : location of the different groundwater quality monitoring sites managed by Brussels Environment and which results are transmitted through the reporting to Europe (under Article 8 of the Water Framework Directive). Indication of the analyzed water body, the European Code and the Brussels code of the monitoring site. Distinction between two types of monitoring: surveillance monitoring for all groundwater bodies (type_monitoring = 1) and operational monitoring for groundwater bodies identified as being at risk of failing to achieve the objectives of good status (type_monitoring = 2)

Brussels-Capital Region: spatial extents outcropping under the quaternary units of the Stratigraphic Units of the Brussels-Capital Region (SU/BCR). This data is limited to the Brussels-Capital Region’s border extended with a 500 m buffer zone. The hydrogeological unit (HU/BCR) of each SU/BRC is indicated in the attribute data. These spatial extents were extracted from the BruStrati3D v1.1 geological model. This data is generated from models and may contain errors, inaccuracies and gaps. It has informative value and may under no circumstances replace a study carried out by an expert. Bruxelles Environnement cannot be held liable for the consequences of the use of this information.

Brussels-Capital Region : data on the 5 Groundwaterbody of the Area of Brussels, defined under the Directive and the Ordinance Water : code European, code of Brussels and name of the water mass, hydrographic district

Brussels-Capital Region : location of the different groundwater level monitoring sites (or piezometric sites) managed by Brussels Environment under the surveillance monitoring of the groundwater status in accordance with the Ordonnance and the Water Framework Directive. Indication of the analyzed water body, the European Code and the Brussels code of the monitoring site.

Brussels-Capital Region : building means any physical construction formed of rigid exterior walls, roofed, permanently attached to land, and designed to accommodate human activity and / or shelter for animals, goods and machinery.

Brussels-Capital Region : groundwater catchment sites protection area 3 (i.e. extraction wells and drainage gallery) in the Brussels-Capital Region. Those site was defined in the Brussels-Capital Government decree of 19 September 2002 delimiting a groundwater catchments protection area at the “Bois de la Cambre” and in the Sonian Forest (Belgian Monitor: June 10, 2008)