Drinking water quality, Walloon Brabant

27 cities covered
27 with a PFAS-4 result

12 of the 27 municipalities in Walloon Brabant have a quantified PFAS figure, published by VMM, SPW-ARNE / SWDE. Newest result: 17 December 2025.

Highest published values

Waterloo: 3 ng/L (PFAS-4, 21 November 2025)
Chastre: 1.4 ng/L (PFAS-4, 1 December 2025)
Incourt: 1.4 ng/L (PFAS-4, 1 December 2025)
Jodoigne: 1.4 ng/L (PFAS-4, 1 December 2025)
Orp-Jauche: 1.4 ng/L (PFAS-4, 1 December 2025)

Lowest quantified values

Tubize: 1 ng/L (PFAS-4, 17 December 2025)
Ittre: 1 ng/L (PFAS-4, 17 December 2025)
Villers-la-Ville: 1.2 ng/L (PFAS-4, 8 December 2025)
Genappe: 1.2 ng/L (PFAS-4, 8 December 2025)
Nivelles: 1.3 ng/L (PFAS-4, 15 October 2025)

Above our benchmark, ranked by PFAS-4

30,386 Population3 ng/L

15,030 Population1.4 ng/L

9,810 Population1.4 ng/L

9,176 Population1.4 ng/L

7,817 Population1.4 ng/L

7,566 Population1.4 ng/L

5,710 Population1.4 ng/L

29,830 Population1.3 ng/L

16,299 Population1.2 ng/L

Villers-la-Ville

11,054 Population1.2 ng/L

29,043 Population1 ng/L

6,918 Population1 ng/L

Other covered cities

Braine-l'Alleud

40,815 PopulationPFAS-4 not detected

35,735 PopulationPFAS-4 not detected

Ottignies-Louvain-la-Neuve

31,823 PopulationPFAS-4 not detected

22,973 PopulationPFAS-4 not detected

14,151 PopulationPFAS-4 not detected

14,049 PopulationPFAS-4 not detected

Chaumont-Gistoux

11,918 PopulationPFAS-4 not detected

11,230 PopulationPFAS-4 not detected

Court-Saint-Etienne

11,081 PopulationPFAS-4 not detected

Braine-le-Château

10,610 PopulationPFAS-4 not detected

Mont-Saint-Guibert

8,503 PopulationPFAS-4 not detected

7,539 PopulationPFAS-4 not detected

7,248 PopulationPFAS-4 not detected

6,707 PopulationPFAS-4 not detected

3,926 PopulationPFAS-4 not detected

The water report for your city

This site is a data project, not an official source. If in doubt, check with your water supplier or local authority.