PFAS in Chenières's tap water: under 8 ng/L, none of the four main PFAS detected

Last PFAS check: · Source: Hub'eau

PFAS in drinking water

No PFAS detected

Amount found in the water < 8 ng/L the 4 most harmful PFAS (PFAS-4) · the lab's detection limit 20 PFAS looked for, none found
Our health benchmark 0.5 ng/L

The lab sees nothing below 8 ng/L, 16 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 Ugny, on the same distribution network as Chenières (SIE DE MEXY (SAUF BASLIEUX)). 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 2 ng/L upward. None reached that limit, so their total is below 8 ng/L rather than zero.

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

None found. The lab sees nothing below 8 ng/L, so our 0.5 ng/L benchmark cannot be checked.

EU legal limit
none detected sum of 20 PFAS below the detection limit, limit 100 ng/L
Last PFAS test
23 July 2026
Water supplier
VEOLIA EAU

In Chenières, none of the 4 most closely watched PFAS (PFAS-4) was detected at the latest PFAS check on 23 July 2026. The total is below 8 ng/L, the sum of the detection limits and 16 times our 0.5 ng/L benchmark. Sum of 20 PFAS: <0,005 µg/L, below the EU legal limit (100 ng/L). Sampled in Ugny, on the same network. 2 checks since 23 May 2025, sum of 20 PFAS always below the detection limit (5 ng/L). Source: Hub'eau, Qualité de l'eau potable (Ministère de la Santé / OFB / BRGM).

Details and sources
Water supplier: VEOLIA EAU Latest water check: 23 July 2026 Data updated on

PFAS over time in Chenières

2 PFAS checks since 23 May 2025, from the published measurements. Samples from 2 communes on the same network: it's the same water, so each one applies to Chenières.

“Calculated”: PFAS-4 worked out from the four substances in the same sample. The chart, averages and trends use lab-published sums only.

DatePFAS-4Sum of 20 PFASSampled at
< 8 ng/L · calculated< 5 ng/LUgny
< 8 ng/L · calculated< 5 ng/LMexy

Calculated values: “<” is an upper bound from published thresholds, “≥” a lower bound, “–” means no published sum or complete measurement. 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.

What was tested Value Limit Status
Nitrate 34 mg/L ≤ 50 mg/L within the limit
See all 14 test results
What was tested Value Limit Status
Nitrate 34 mg/L ≤ 50 mg/L within the limit
Nitrite <0,01 mg/L ≤ 0.5 mg/L within the limit
Cadmium <1 µg/L ≤ 5 µg/L within the limit
Chromium <5 µg/L ≤ 50 µg/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 7.5 unité pH 6.5–9 unité pH within the limit
Water hardness 28.8 °f no limit for reference
Electrical conductivity 570 µS/cm 200–1,100 µS/cm within the limit
Chloride 12 mg/L ≤ 250 mg/L within the limit
Sulphate 18 mg/L ≤ 250 mg/L within the limit
Iron <10 µg/L ≤ 200 µg/L within the limit
Turbidity 0.2 NFU ≤ 2 NFU within the limit

Frequently asked questions

Is tap water in Chenières safe to drink?

Yes. At the check on 23 July 2026, the tap water in Chenières was within every limit tested. “Eau d'alimentation conforme aux exigences de qualité en vigueur pour l'ensemble des paramètres mesurés.”

How high are PFAS levels in Chenières's drinking water?

At the latest check the total of 20 PFAS ("forever chemicals") was below the laboratory's reporting limit of 5 ng/L. The EU limit is 100 ng/L, so this water is under 5 % of the limit. (below the EU limit)

Does the water in Chenières also meet the strictest limits in Europe?

The check cannot say. None of the four compounds was quantified, but the laboratory's detection limits add up to 8 ng/L, above Sweden's legal limit of 4 ng/L in force since 2026, so a value between the two would go unnoticed.

Are PFAS levels rising in Chenières's tap water?

Calculated PFAS-4 values are listed in the table. The chart uses laboratory-published sum-of-20 results; there are too few laboratory-published PFAS-4 sums for the existing trend calculation.

How hard is the water in Chenières?

The water hardness in Chenières is 28.8 °f (medium). 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 Chenières, so in principle the same water.

Nearby communes

The closest to Chenières 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=54127
License
Licence Ouverte / Open Licence (Etalab)
Retrieved
21 September 2026
Supply networks
SIE DE MEXY (SAUF BASLIEUX)

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