pfasnearmeDrinking water quality from official sources

PFAS in Braine-le-Comte's tap water: 1 ng/L, 2x our 0.5 ng/L benchmark

Last PFAS check: · Source: SPW-ARNE / SWDE

PFAS in drinking water

2× above our health benchmark

Amount found in the water 1 ng/L 0.001 µg/L · the 4 most harmful PFAS (PFAS-4)
Our health benchmark 0.5 ng/L

0.5 ng/L is our benchmark, not an official limit. Same EFSA method as Sweden, Denmark and the Netherlands, but stricter. It's a yearly average, compared here with the latest check.

How we chose 0.5 ng/L

The PFAS figures come from the sample of 17 December 2025 in distribution zone ZW1478 (SWDE), one of the 5 zones serving Braine-le-Comte.

More about this result
Target value in Belgium (binding from 2028) within the limit
below this limit 1 ng/L · Limit: 4 ng/L
Legal limit in Sweden (since 2026) within the limit
below this limit 1 ng/L · Limit: 4 ng/L
Limit in Denmark (since 2021) no verdict
finer than the lab's detection limit 1 ng/L · Limit: 2 ng/L
Limit in Germany (from 2028) within the limit
below this limit 1 ng/L · Limit: 20 ng/L

The US also limits PFOA and PFOS to 4 ng/L each, per substance.

Substances below the detection limit count as 0, so the real total may be higher.

One of these four, PFOA, is classified as causing cancer in humans by the WHO's cancer research agency (IARC).

More PFAS than in 52% of the cities we track

Legal limit (Belgium and EU) within the limit
19 % of the EU limit 0.0186 µg/L · Limit: 0.1 µg/L

checked on 17 December 2025

20 PFAS (see each substance)
PFAS substance Value
PFBA 0.0069 µg/L
PFPeA 0.0044 µg/L
PFHxA 0.0042 µg/L
PFBS 0.0021 µg/L
PFHxS 0.001 µg/L
PFOS <0,001 µg/L
PFOA <0,001 µg/L
PFHpA <0,001 µg/L
PFNA <0,001 µg/L
PFDA <0,001 µg/L
PFUnDA <0,001 µg/L
PFDoDA <0,001 µg/L
PFTrDA <0,001 µg/L
PFPeS <0,001 µg/L
PFHpS <0,001 µg/L
PFNS <0,001 µg/L
PFDS <0,001 µg/L
PFUnDS <0,001 µg/L
PFDoDS <0,001 µg/L
PFTrDS <0,001 µg/L

Above our health benchmark. Get new results by email below.

Legal limit (Belgium and EU)
18.6 ng/L sum of 20 PFAS, below the 100 ng/L limit
Last PFAS test
17 December 2025
Water supplier
SWDE

In Braine-le-Comte, the 4 most closely watched PFAS (PFAS-4) add up to 1 ng/L (0.001 µg/L) at the latest PFAS check on 17 December 2025. That's 2 times our 0.5 ng/L health benchmark, but below Sweden's legal limit of 4 ng/L. Sum of 20 PFAS: 18.6 ng/L (0.0186 µg/L), below the EU legal limit (100 ng/L). 107 checks since 12 September 2023: PFAS-4 up to 38 ng/L, sometimes below the detection limit, averaging at least 3.44 ng/L over 12 months (non-detects as 0). Falling on the main network. Source: SPW-ARNE / SWDE – Etat des lieux du monitoring PFAS dans les eaux distribuées (sept. 2023 – déc. 2025).

Details and sources
Water supplier: SWDE Latest water check: 17 December 2025 Data updated on

PFAS over time in Braine-le-Comte

107 PFAS checks since 12 September 2023, values as published. Samples come from 5 distribution networks. The trend refers to the network “ZW1478 (SWDE)”.

0.5 ng/L38 ng/L012 September 202317 December 2025
PFAS-4 sum per check in ng/L. Dashed line: pfasnearme's 0.5 ng/L benchmark. Hollow dots: below the detection limit.
DatePFAS-4Sum of 20 PFASNetwork
1 ng/L18.6 ng/LZW1478 (SWDE)
< 4 ng/L11.4 ng/LZW1102 (SWDE)
< 4 ng/L24.2 ng/LZW1478 (SWDE)
< 4 ng/L24.9 ng/LZW1478 (SWDE)
< 4 ng/L20 ng/LZW1102 (SWDE)
< 4 ng/L17.8 ng/LZW1102 (SWDE)
< 4 ng/L20.7 ng/LZW1102 (SWDE)
< 4 ng/L23.9 ng/LZW1478 (SWDE)
< 4 ng/L< 20 ng/LZW18293 (SWDE)
1.5 ng/L17.6 ng/LZW1102 (SWDE)
< 4 ng/L15.8 ng/LZW1478 (SWDE)
< 4 ng/L14.2 ng/LZW1102 (SWDE)
Show the 95 earlier checks (back to 12 September 2023)
< 4 ng/L11.7 ng/LZW1478 (SWDE)
< 4 ng/L13.2 ng/LZW1102 (SWDE)
< 4 ng/L< 20 ng/LZW1107 (SWDE)
< 4 ng/L2.1 ng/LZW1360 (SWDE)
< 4 ng/L11.8 ng/LZW1102 (SWDE)
< 4 ng/L13.2 ng/LZW1478 (SWDE)
1.1 ng/L13.2 ng/LZW1102 (SWDE)
6.2 ng/L29 ng/LZW1478 (SWDE)
5 ng/L19.7 ng/LZW1102 (SWDE)
3.8 ng/L22.6 ng/LZW1102 (SWDE)
1.1 ng/L19.5 ng/LZW1478 (SWDE)
8.5 ng/L36.8 ng/LZW1478 (SWDE)
5.3 ng/L21.9 ng/LZW1102 (SWDE)
10.5 ng/L41.4 ng/LZW1102 (SWDE)
21 ng/L71 ng/LZW1478 (SWDE)
< 4 ng/L1 ng/LZW1360 (SWDE)
< 4 ng/L< 27 ng/LZW18293 (SWDE)
17 ng/L61 ng/LZW1102 (SWDE)
< 4 ng/L< 27 ng/LZW1107 (SWDE)
21 ng/L71 ng/LZW1102 (SWDE)
18 ng/L60 ng/LZW1478 (SWDE)
25 ng/L76 ng/LZW1478 (SWDE)
24 ng/L75 ng/LZW1102 (SWDE)
23 ng/L73 ng/LZW1478 (SWDE)
21 ng/L66 ng/LZW1102 (SWDE)
25 ng/L86 ng/LZW1478 (SWDE)
21 ng/L68 ng/LZW1102 (SWDE)
25 ng/L75 ng/LZW1478 (SWDE)
26 ng/L76 ng/LZW1102 (SWDE)
22 ng/L64 ng/LZW1478 (SWDE)
19 ng/L63 ng/LZW1102 (SWDE)
< 4 ng/L< 25 ng/LZW1107 (SWDE)
< 4 ng/L2 ng/LZW1360 (SWDE)
21 ng/L70 ng/LZW1478 (SWDE)
12 ng/L39 ng/LZW1478 (SWDE)
24 ng/L79 ng/LZW1102 (SWDE)
20 ng/L63 ng/LZW1102 (SWDE)
< 4 ng/L< 25 ng/LZW18293 (SWDE)
20 ng/L65 ng/LZW1478 (SWDE)
17 ng/L55 ng/LZW1102 (SWDE)
21 ng/L61 ng/LZW1478 (SWDE)
20 ng/L57 ng/LZW1478 (SWDE)
< 4 ng/L< 24 ng/LZW1102 (SWDE)
< 4 ng/L< 24 ng/LZW1478 (SWDE)
22 ng/L67 ng/LZW1102 (SWDE)
26 ng/L86 ng/LZW1478 (SWDE)
11 ng/L58 ng/LZW1102 (SWDE)
26 ng/L73 ng/LZW1478 (SWDE)
16 ng/L57 ng/LZW1102 (SWDE)
15 ng/L46 ng/LZW1478 (SWDE)
25 ng/L72 ng/LZW1478 (SWDE)
20 ng/L70 ng/LZW1478 (SWDE)
22 ng/L71 ng/LZW1478 (SWDE)
20 ng/L70 ng/LZW1478 (SWDE)
14 ng/L53 ng/LZW1478 (SWDE)
20 ng/L69 ng/LZW1478 (SWDE)
21 ng/L78 ng/LZW1478 (SWDE)
14 ng/L58 ng/LZW1102 (SWDE)
16 ng/L59 ng/LZW1478 (SWDE)
16 ng/L59 ng/LZW1478 (SWDE)
< 8 ng/L< 40 ng/LZW1360 (SWDE)
20 ng/L63 ng/LZW1478 (SWDE)
28 ng/L80 ng/LZW1478 (SWDE)
35 ng/L104 ng/LZW1478 (SWDE)
27 ng/L83 ng/LZW1478 (SWDE)
35 ng/L107 ng/LZW1478 (SWDE)
26 ng/L78 ng/LZW1478 (SWDE)
17 ng/L65 ng/LZW1102 (SWDE)
15 ng/L51 ng/LZW1478 (SWDE)
< 8 ng/L< 40 ng/LZW18293 (SWDE)
24 ng/L74 ng/LZW1478 (SWDE)
< 8 ng/L< 40 ng/LZW1107 (SWDE)
23 ng/L68 ng/LZW1478 (SWDE)
29 ng/L89 ng/LZW1478 (SWDE)
< 4 ng/L1 ng/LZW1360 (SWDE)
25 ng/L76 ng/LZW1478 (SWDE)
< 4 ng/L< 23 ng/LZW1107 (SWDE)
24 ng/L70 ng/LZW1102 (SWDE)
23 ng/L69 ng/LZW1478 (SWDE)
< 4 ng/L< 20 ng/LZW18293 (SWDE)
21 ng/L63 ng/LZW1102 (SWDE)
< 4 ng/L1 ng/LZW1360 (SWDE)
< 4 ng/L< 21 ng/LZW1360 (SWDE)
< 4 ng/L1 ng/LZW1360 (SWDE)
16 ng/L55 ng/LZW1478 (SWDE)
27 ng/L70 ng/LZW1102 (SWDE)
< 4 ng/L7 ng/LZW1360 (SWDE)
38 ng/L97 ng/LZW1102 (SWDE)
37 ng/L91 ng/LZW1360 (SWDE)
27 ng/L82 ng/LZW1478 (SWDE)
37 ng/L106 ng/LZW1102 (SWDE)
36 ng/L94 ng/LZW1102 (SWDE)
1 ng/L7 ng/LZW1360 (SWDE)
< 4 ng/L< 20 ng/LZW18293 (SWDE)
< 4 ng/L1 ng/LZW1107 (SWDE)

“<” means not detected, the figure being the detection limit. “–” means not published. Labs have only reported the PFAS-4 sum (SANDRE code 9268) since autumn 2025. How to read a PFAS result

What the latest check found

The authorities have not published an overall verdict for this water.

Frequently asked questions

Is tap water in Braine-le-Comte safe to drink?

All the values shown here (17 December 2025) are within the legal limits, but the authorities have not published an overall verdict for this water.

How high are PFAS levels in Braine-le-Comte's drinking water?

The total of 20 PFAS ("forever chemicals") was last measured at 18.6 ng/L. The EU limit is 100 ng/L, so this water is at 19 % of the limit. (below the EU limit)

Does the water in Braine-le-Comte also meet the strictest limits in Europe?

Yes. Even against Europe's strictest legal limit, Sweden's 4 ng/L in force since 2026, the measured value of 1 ng/L stays below.

Are PFAS levels rising in Braine-le-Comte's tap water?

No, they are falling. On the main network, the PFAS-4 sum went from 27 ng/L (8 November 2023) to 1 ng/L (17 December 2025) across 42 quantified checks.

Which PFAS limits apply in Belgium?

Belgium applies the EU limit of 100 ng/L for the sum of 20 PFAS as binding law (Flemish Drinkwaterbesluit of 2023, Walloon Code de l'eau since February 2025). For the four most harmful PFAS (PFAS-4) all three regions set a target of 4 ng/L that becomes binding in 2028. This site's 0.5 ng/L benchmark is stricter than both.

How hard is the water in Braine-le-Comte?

No hardness value is available for Braine-le-Comte in this source.

Where does this data come from?

All values come from official publications: SPW-ARNE / SWDE – Etat des lieux du monitoring PFAS dans les eaux distribuées (sept. 2023 – déc. 2025). Retrieved on 28 September 2026.

Same water network

Same distribution network as Braine-le-Comte, so in principle the same water.

Soignies
PFAS-4: below 4 ng/L
Tubize
PFAS-4: 1 ng/L
Lens
PFAS-4: below 4 ng/L
Ecaussinnes
PFAS-4: below 4 ng/L
Le Roeulx
PFAS-4: 1.6 ng/L
Ittre
PFAS-4: 1 ng/L
Enghien
PFAS-4: below 4 ng/L

Nearby cities

The closest to Braine-le-Comte on this site.

Rebecq
PFAS-4: below 4 ng/L 6 km away
Seneffe
PFAS-4: below 4 ng/L 11 km away
Braine-le-Château
PFAS-4: below 4 ng/L 12 km away
Silly
PFAS-4: below 4 ng/L 13 km away
Nivelles
PFAS-4: 1.3 ng/L 14 km away

Data source
SPW-ARNE / SWDE – Etat des lieux du monitoring PFAS dans les eaux distribuées (sept. 2023 – déc. 2025)
https://environnement.wallonie.be/home/gestion-environnementale/environnement-sante/pfas
Retrieved
28 September 2026
Supply networks
ZW1102 (SWDE), ZW1107 (SWDE), ZW1360 (SWDE), ZW1478 (SWDE), ZW18293 (SWDE)

Wallonia: Service public de Wallonie (SPW-ARNE) with SWDE, PFAS monitoring of distributed water, one row per sample and distribution zone, September 2023 to December 2025. The reuse licence for this document is still to be confirmed with SPW; attributed to SPW-ARNE and SWDE meanwhile.

Limits in Belgium. Belgium applies the EU limit of 100 ng/L for the sum of 20 PFAS as binding law (Flemish Drinkwaterbesluit of 2023, Walloon Code de l'eau since February 2025). For the four most harmful PFAS (PFAS-4) all three regions set a target of 4 ng/L that becomes binding in 2028. This site's 0.5 ng/L benchmark is stricter than both.

Résultats du monitoring PFAS des eaux distribuées (SPW-ARNE, coordination SWDE), une ligne par prélèvement et zone de distribution (ZDE) ; la commune est desservie par 5 zones (ZW1102, ZW1107, ZW1360, ZW1478, ZW18293). Valeurs publiées en ng/L, converties en µg/L ; un « < » indique que tous les composés étaient sous la limite de quantification. Licence de réutilisation non vérifiée pour ce document (les données ouvertes du SPW sont normalement CC BY 4.0) ; attribution SPW-ARNE et SWDE en attendant confirmation.

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