PFAS in Charnois's tap water: 14 ng/L, 28x our 0.5 ng/L benchmark
Last PFAS check: · Source: Hub'eau
PFAS in drinking water
28× above our health benchmark
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 Rancennes, on the same distribution network as Charnois (S06 AVIETTE). 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.
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 97% of the cities we track
checked on 5 May 2026
20 PFAS (see each substance)
| PFAS substance | Value |
|---|---|
| Acide perfluoro-octanoïque (PFOA) | 0.012 µg/L |
| Acide perfluoro-decanoïque (PFDA) | 0.005 µg/L |
| Acide perfluoroheptanoïque (PFHPA) | 0.002 µg/L |
| Acide perfluoro-nonanoïque (PFNA) | 0.001 µg/L |
| Acide sulfonique de perfluorooctane (PFOS) | 0.001 µg/L |
| Acide perfluoropentane sulfonique (PFPS) | <0,001 µg/L |
| Acide perfluorododécane sulfonique (PFDoDS) | <0,001 µg/L |
| Perfluorohexane sulfonate (PFHXS) | <0,001 µg/L |
| Acide perfluoropentanoïque (PFPEA) | <0,001 µg/L |
| Acide perfluorobutanoïque (PFBA) | <0,002 µg/L |
| Acide perfluorononane sulfonique (PFNS) | <0,002 µg/L |
| Acide perfluorohexanoïque (PFHXA) | <0,002 µg/L |
| Acide sulfonique de perfluorobutane (PFBS) | <0,001 µg/L |
| Acide perfluorodecane sulfonique (PFDS) | <0,001 µg/L |
| Acide perfluorododécanoique (PFDoDA) | <0,001 µg/L |
| Acide perfluoroheptane sulfonique (PFHpS) | <0,002 µg/L |
| Acide perfluoro tridecanoique (PFTrDA) | <0,001 µg/L |
| Acide perfluoro tridecane sulfonique (PFTrDS) | <0,005 µg/L |
| Acide perfluoro undecane sulfonique (PFUnDS) | <0,002 µg/L |
| Acide perfluoro undecanoïque (PFUnA) | <0,001 µg/L |
Above our health benchmark. Here are some filter options.
- EU legal limit
- 21 ng/L sum of 20 PFAS, below the 100 ng/L limit
- Last PFAS test
- 5 May 2026
- Water supplier
- VEOLIA EAU
In Charnois, the 4 most closely watched PFAS (PFAS-4) add up to 14 ng/L (0.014 µg/L) at the latest PFAS check on 5 May 2026. That's 28 times our 0.5 ng/L health benchmark, and above Sweden's legal limit of 4 ng/L. Sum of 20 PFAS: 21 ng/L (0.021 µg/L), below the EU legal limit (100 ng/L). Sampled in Rancennes, on the same network. 8 checks since 5 May 2025: sum of 20 PFAS from 18 ng/L to 55 ng/L. Source: Hub'eau, Qualité de l'eau potable (Ministère de la Santé / OFB / BRGM).
Details and sources
PFAS over time in Charnois
8 PFAS checks since 5 May 2025, from the published measurements. Samples from 2 communes on the same network: it's the same water, so each one applies to Charnois.
“Calculated”: PFAS-4 worked out from the four substances in the same sample. The chart, averages and trends use lab-published sums only.
| Date | PFAS-4 | Sum of 20 PFAS | Sampled at |
|---|---|---|---|
| 14 ng/L – < 15 ng/L · calculated | 21 ng/L | Rancennes | |
| 11 ng/L – < 13 ng/L · calculated | 18 ng/L | Rancennes | |
| 17 ng/L – < 18 ng/L · calculated | 32 ng/L | Rancennes | |
| 14 ng/L – < 15 ng/L · calculated | 24 ng/L | Charnois | |
| 27 ng/L – < 28 ng/L · calculated | 46 ng/L | Charnois | |
| 33 ng/L – < 34 ng/L · calculated | 55 ng/L | Rancennes | |
| 30 ng/L – < 32 ng/L · calculated | 53 ng/L | Charnois | |
| 25 ng/L – < 27 ng/L · calculated | 47 ng/L | Rancennes |
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.
Values to watch
These results are close to their legal limit, or over it.
Outside a reference value: Turbidity 14 NFU on 3 July 2026 (reference ≤ 2 NFU). These are indicator parameters with reference values, not legal limits.
| What was tested | Value | Limit | Status |
|---|---|---|---|
| Turbidity | 14 NFU | ≤ 2 NFU | above the reference value |
See all 20 test results
| What was tested | Value | Limit | Status |
|---|---|---|---|
| Nitrate | 12.8 mg/L | ≤ 50 mg/L | within the limit |
| Nitrite | <0,010 mg/L | ≤ 0.5 mg/L | within the limit |
| Lead | 0.7 µg/L | ≤ 10 µg/L | within the limit |
| Copper | 0.036 mg(Cu)/L | ≤ 2 mg(Cu)/L | within the limit |
| Nickel | 0.6 µg/L | ≤ 20 µg/L | within the limit |
| Arsenic | <0,5 µg/L | ≤ 10 µg/L | within the limit |
| Cadmium | <0,5 µg/L | ≤ 5 µg/L | within the limit |
| Chromium | <0,5 µg/L | ≤ 50 µg/L | within the limit |
| Fluoride | <0,100 mg/L | ≤ 1.5 mg/L | within the limit |
| Escherichia coli | 0 n/(100mL) | ≤ 0 mL) | within the limit |
| Enterococci | 0 n/(100mL) | ≤ 0 mL) | within the limit |
| Coliform bacteria | 0 n/(100mL) | ≤ 0 mL) | within the limit |
| pH | 7.5 unité pH | 6.5–9 unité pH | within the limit |
| Water hardness | 28.3 °f | no limit | for reference |
| Electrical conductivity | 630 µS/cm | 200–1,100 µS/cm | within the limit |
| Chloride | 26.1 mg/L | ≤ 250 mg/L | within the limit |
| Sulphate | 43.3 mg/L | ≤ 250 mg/L | within the limit |
| Sodium | 28 mg/L | ≤ 200 mg/L | within the limit |
| Iron | <5 µg/L | ≤ 200 µg/L | within the limit |
| Turbidity | 14 NFU | ≤ 2 NFU | above the reference value |
Frequently asked questions
Is tap water in Charnois safe to drink?
Yes. At the check on 3 July 2026, the tap water in Charnois was within every limit tested. Outside a reference value: Turbidity 14 NFU on 3 July 2026 (reference ≤ 2 NFU). These are indicator parameters with reference values, not legal limits. “Les résultats sont conformes sur le plan bactériologique. Néanmoins la référence de qualité relative à la présence de germes aérobies revivifiables à 36°C n'est pas satisfaite. Une vérification des installations peut s'avérer nécessaire, notamment le traitement de désinfection s'il existe. Sur le plan chimique, l'eau est turbide et d'aspect anormal. Des purge s du réseau peuvent s'avérer nécessaire, si l'ensemble du réseau est c oncerné par ces dépassements.”
How high are PFAS levels in Charnois's drinking water?
The total of 20 PFAS ("forever chemicals") was last measured at 21 ng/L. The EU limit is 100 ng/L, so this water is at 21 % of the limit. (below the EU limit)
Does the water in Charnois also meet the strictest limits in Europe?
No. The four most harmful PFAS add up to 14 ng/L. That is 3.5 times Sweden's legal limit of 4 ng/L, in force since 2026. Germany will set a similar one in 2028. The water still passes the current EU legal limit (100 ng/L for the total of 20 PFAS).
Are PFAS levels rising in Charnois'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 Charnois?
The water hardness in Charnois is 28.3 °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 Charnois, so in principle the same water.
Nearby communes
The closest to Charnois 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=08106
- License
- Licence Ouverte / Open Licence (Etalab)
- Retrieved
- 21 September 2026
- Supply networks
- S06 AVIETTE
Water report for Charnois
Get new PFAS results for Charnois, with a short explanation. At most one update a week, only when there's something new.
This site is a data project, not an official source. If in doubt, check with your water supplier or local authority.