PFAS in Fresnes-sur-Escaut's tap water: under 4 ng/L, none of the four main PFAS detected

Last PFAS check: · Source: Hub'eau

PFAS in drinking water

None of the 4 most harmful PFAS detected

Amount found in the water < 4 ng/L the 4 most harmful PFAS (PFAS-4) · the lab's detection limit 20 PFAS looked for, 1 ng/L found in total
Our health benchmark 0.5 ng/L

The lab sees nothing below 4 ng/L, 8 times our benchmark of 0.5 ng/L. Water above our benchmark would pass this check unnoticed.

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.

Sample taken in Condé-sur-l'Escaut, on the same distribution network as Fresnes-sur-Escaut (CONDE SUR L'ESCAUT). The health authority samples one tap per network; a network carries the same treated water everywhere.

More about this result

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

The lab detects each of the four substances from 1 ng/L upward. None reached that limit, so their total is below 4 ng/L rather than zero.

20 PFAS (see each substance)
PFAS substance Value
Acide perfluoropentanoïque (PFPEA) 0.001 µg/L
Acide perfluoro-octanoïque (PFOA) <0,001 µg/L
Acide perfluoroheptanoïque (PFHPA) <0,001 µg/L
Acide perfluoro tridecane sulfonique (PFTrDS) <0,005 µg/L
Acide perfluoropentane sulfonique (PFPS) <0,001 µg/L
Acide perfluoro tridecanoique (PFTrDA) <0,001 µg/L
Acide perfluoro-nonanoïque (PFNA) <0,001 µg/L
Acide sulfonique de perfluorooctane (PFOS) <0,001 µg/L
Acide sulfonique de perfluorobutane (PFBS) <0,001 µg/L
Acide perfluoro undecanoïque (PFUnA) <0,001 µg/L
Acide perfluoro undecane sulfonique (PFUnDS) <0,002 µg/L
Acide perfluoroheptane sulfonique (PFHpS) <0,002 µg/L
Acide perfluorohexanoïque (PFHXA) <0,002 µg/L
Acide perfluorododécane sulfonique (PFDoDS) <0,001 µg/L
Acide perfluorobutanoïque (PFBA) <0,002 µg/L
Acide perfluoro-decanoïque (PFDA) <0,001 µg/L
Perfluorohexane sulfonate (PFHXS) <0,001 µg/L
Acide perfluorododécanoique (PFDoDA) <0,001 µg/L
Acide perfluorodecane sulfonique (PFDS) <0,001 µg/L
Acide perfluorononane sulfonique (PFNS) <0,002 µg/L

None found. The lab sees nothing below 4 ng/L, so our 0.5 ng/L benchmark cannot be checked.

EU legal limit
1 ng/L sum of 20 PFAS, below the 100 ng/L limit
Last PFAS test
2 June 2026
Water supplier
EAU DU VALENCIENNOIS

In Fresnes-sur-Escaut, none of the 4 most closely watched PFAS (PFAS-4) was detected at the latest PFAS check on 2 June 2026. The total is below 4 ng/L, the sum of the detection limits and 8 times our 0.5 ng/L benchmark. Sum of 20 PFAS: 1 ng/L (0.001 µg/L), below the EU legal limit (100 ng/L). Sampled in Condé-sur-l'Escaut, on the same network. 3 checks since 20 February 2026, PFAS-4 always below the detection limit (1 ng/L). Source: Hub'eau, Qualité de l'eau potable (Ministère de la Santé / OFB / BRGM).

Details and sources
Water supplier: EAU DU VALENCIENNOIS Latest water check: 26 June 2026 Data updated on

PFAS over time in Fresnes-sur-Escaut

3 PFAS checks since 20 February 2026, values as published. Samples from 3 communes on the same network: it's the same water, so each one applies to Fresnes-sur-Escaut.

DatePFAS-4Sum of 20 PFASSampled at
< 1 ng/L1 ng/LCondé-sur-l'Escaut
< 1 ng/L1 ng/LVieux-Condé
< 1 ng/L2 ng/LFresnes-sur-Escaut

“<” 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

At the latest check, the water was within every limit tested.

Microbiology: within the limit Chemistry: within the limit

Values to watch

These results are close to their legal limit, or over it.

Outside a reference value: Electrical conductivity 1,332 µS/cm on 26 June 2026 (reference 200–1,100 µS/cm), Sulphate 263 mg/L on 26 June 2026 (reference ≤ 250 mg/L). These are indicator parameters with reference values, not legal limits.

What was tested Value Limit Status
Electrical conductivity 1,332 µS/cm 200–1,100 µS/cm above the reference value
Sulphate 263 mg/L ≤ 250 mg/L above the reference value
See all 21 test results
What was tested Value Limit Status
Nitrate 2 mg/L ≤ 50 mg/L within the limit
Nitrite <0,01 mg/L ≤ 0.1 mg/L within the limit
Lead <2 µg/L ≤ 10 µg/L within the limit
Copper <0,010 mg(Cu)/L ≤ 2 mg(Cu)/L within the limit
Nickel <5 µg/L ≤ 20 µg/L within the limit
Arsenic <2 µg/L ≤ 10 µg/L within the limit
Cadmium <1 µg/L ≤ 5 µg/L within the limit
Chromium <5 µg/L ≤ 50 µg/L within the limit
Uranium <10 µg/L ≤ 30 µg/L within the limit
Fluoride 0.23 mg/L ≤ 1.5 mg/L within the limit
Escherichia coli <1 n/(100mL) ≤ 0 mL) within the limit
Enterococci <1 n/(100mL) ≤ 0 mL) within the limit
Coliform bacteria <1 n/(100mL) ≤ 0 mL) within the limit
pH 7.1 unité pH 6.5–9 unité pH within the limit
Water hardness 40.65 °f no limit for reference
Electrical conductivity 1,332 µS/cm 200–1,100 µS/cm above the reference value
Chloride 44 mg/L ≤ 250 mg/L within the limit
Sulphate 263 mg/L ≤ 250 mg/L above the reference value
Sodium 23.7 mg/L ≤ 200 mg/L within the limit
Iron <10 µg/L ≤ 200 µg/L within the limit
Turbidity 0.45 NFU ≤ 2 NFU within the limit

Frequently asked questions

Is tap water in Fresnes-sur-Escaut safe to drink?

Yes. At the check on 26 June 2026, the tap water in Fresnes-sur-Escaut was within every limit tested. Outside a reference value: Electrical conductivity 1,332 µS/cm on 26 June 2026 (reference 200–1,100 µS/cm), Sulphate 263 mg/L on 26 June 2026 (reference ≤ 250 mg/L). These are indicator parameters with reference values, not legal limits. “Eau d’alimentation conforme aux limites de qualité en vigueur mais non satisfaisante à la référence de qualité pour les paramètres Carbone Organique Total, sulfates et conductivité. Il est demandé de remédier à la situation de non-conformité constatée. Cette eau est déconseillée pour la boisson et la préparation des aliments des nourrissons. Elle est toutefois susceptible d'être corrosive en raison de la conductivité excessive.”

How high are PFAS levels in Fresnes-sur-Escaut's drinking water?

The total of 20 PFAS ("forever chemicals") was last measured at 1 ng/L. The EU limit is 100 ng/L, so this water is at 1 % of the limit. (below the EU limit)

Does the water in Fresnes-sur-Escaut also meet the strictest limits in Europe?

As far as this check can tell, yes. None of the four compounds was quantified, so their total is below 4 ng/L, the sum of the laboratory's detection limits, and under Sweden's legal limit of 4 ng/L in force since 2026.

Are PFAS levels rising in Fresnes-sur-Escaut's tap water?

No. Since 20 February 2026, 3 checks have been published and the PFAS-4 sum stayed below the laboratory's detection limit (1 ng/L) every time.

How hard is the water in Fresnes-sur-Escaut?

The water hardness in Fresnes-sur-Escaut is 40.7 °f (hard). This mainly matters for household appliances and detergent dosing, not for health.

Where does this data come from?

All values come from official publications: Hub'eau, Qualité de l'eau potable (Ministère de la Santé / OFB / BRGM). Retrieved on 21 September 2026.

Same water network

Same distribution network as Fresnes-sur-Escaut, so in principle the same water.

Nearby communes

The closest to Fresnes-sur-Escaut on this site.

Data source

Hub'eau, Qualité de l'eau potable (Ministère de la Santé / OFB / BRGM)
https://hubeau.eaufrance.fr/api/v1/qualite_eau_potable/resultats_dis?code_commune=59253
License
Licence Ouverte / Open Licence (Etalab)
Retrieved
21 September 2026
Supply networks
CONDE SUR L'ESCAUT

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