PFAS in Fagnières's tap water: 10 ng/L, 20x our 0.5 ng/L benchmark
Last PFAS check: · Source: Hub'eau
PFAS in drinking water
20× 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 Châlons-en-Champagne, on the same distribution network as Fagnières (FAGNIERES). 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 96% of the cities we track
checked on 8 June 2026
20 PFAS (see each substance)
| PFAS substance | Value |
|---|---|
| Perfluorohexane sulfonate (PFHXS) | 0.004 µg/L |
| Acide sulfonique de perfluorooctane (PFOS) | 0.004 µg/L |
| Acide perfluorohexanoïque (PFHXA) | 0.003 µg/L |
| Acide perfluoro-octanoïque (PFOA) | 0.002 µg/L |
| Acide perfluoropentanoïque (PFPEA) | 0.002 µg/L |
| Acide perfluoroheptanoïque (PFHPA) | 0.001 µg/L |
| Acide perfluoro tridecanoique (PFTrDA) | <0,001 µg/L |
| Acide perfluoro undecanoïque (PFUnA) | <0,001 µg/L |
| Acide perfluorododécanoique (PFDoDA) | <0,001 µg/L |
| Acide perfluorododécane sulfonique (PFDoDS) | <0,001 µg/L |
| Acide perfluoropentane sulfonique (PFPS) | <0,001 µg/L |
| Acide perfluoro-decanoïque (PFDA) | <0,001 µg/L |
| Acide perfluoroheptane sulfonique (PFHpS) | <0,002 µg/L |
| Acide perfluorobutanoïque (PFBA) | <0,002 µg/L |
| Acide perfluorodecane sulfonique (PFDS) | <0,001 µg/L |
| Acide sulfonique de perfluorobutane (PFBS) | <0,001 µg/L |
| Acide perfluoro tridecane sulfonique (PFTrDS) | <0,005 µg/L |
| Acide perfluoro-nonanoïque (PFNA) | <0,001 µg/L |
| Acide perfluoro undecane sulfonique (PFUnDS) | <0,002 µg/L |
| Acide perfluorononane sulfonique (PFNS) | <0,002 µg/L |
Above our health benchmark. Here are some filter options.
- EU legal limit
- 16 ng/L sum of 20 PFAS, below the 100 ng/L limit
- Last PFAS test
- 8 June 2026
- Water supplier
- CA DE CHÂLONS-EN-CHAMPAGNE
In Fagnières, the 4 most closely watched PFAS (PFAS-4) add up to 10 ng/L (0.01 µg/L) at the latest PFAS check on 8 June 2026. That's 20 times our 0.5 ng/L health benchmark, and above Sweden's legal limit of 4 ng/L. Sum of 20 PFAS: 16 ng/L (0.016 µg/L), below the EU legal limit (100 ng/L). Sampled in Châlons-en-Champagne, on the same network. 4 checks since 3 March 2025: sum of 20 PFAS from 9 ng/L to 17 ng/L. Source: Hub'eau, Qualité de l'eau potable (Ministère de la Santé / OFB / BRGM).
Details and sources
PFAS over time in Fagnières
4 PFAS checks since 3 March 2025, from the published measurements. Samples from 2 communes on the same network: it's the same water, so each one applies to Fagnières.
“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 |
|---|---|---|---|
| 10 ng/L – < 11 ng/L · calculated | 16 ng/L | Châlons-en-Champagne | |
| 7 ng/L – < 8 ng/L · calculated | 9 ng/L | Châlons-en-Champagne | |
| 10 ng/L – < 11 ng/L · calculated | 17 ng/L | Fagnières | |
| 11 ng/L – < 12 ng/L · calculated | 17 ng/L | Châlons-en-Champagne |
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.
| What was tested | Value | Limit | Status |
|---|---|---|---|
| Nitrate | 25 mg/L | ≤ 50 mg/L | within the limit |
| Lead | 6.2 µg/L | ≤ 10 µg/L | within the limit |
See all 17 test results
| What was tested | Value | Limit | Status |
|---|---|---|---|
| Nitrate | 25 mg/L | ≤ 50 mg/L | within the limit |
| Nitrite | 0.012 mg/L | ≤ 0.5 mg/L | within the limit |
| Lead | 6.2 µg/L | ≤ 10 µg/L | within the limit |
| Copper | 0.032 mg(Cu)/L | ≤ 2 mg(Cu)/L | within the limit |
| Nickel | 1 µg/L | ≤ 20 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 |
| 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 | 20.5 °f | no limit | for reference |
| Electrical conductivity | 530 µS/cm | 200–1,100 µS/cm | within the limit |
| Chloride | 20.4 mg/L | ≤ 250 mg/L | within the limit |
| Sulphate | 18.9 mg/L | ≤ 250 mg/L | within the limit |
| Iron | <5 µg/L | ≤ 200 µg/L | within the limit |
| Turbidity | <0,30 NFU | ≤ 2 NFU | within the limit |
Frequently asked questions
Is tap water in Fagnières safe to drink?
Yes. At the check on 29 June 2026, the tap water in Fagnières was within every limit tested. “Le résultat des prélèvements effectués révèle une qualité d'EAU CONFORME aux limites de qualité microbiologiques. Néanmoins, un dénombrement élevé de bactéries aérobies revivifiables a été détecté. Ces germes ne sont pas préjudiciables à la santé publique mais révèlent la nécessité de vérifier les installations de production, de traitement et de distribution de l'eau. L'EAU ET LES INSTALLATIONS SONT A SURVEILLER. Maintenir un résiduel en chlore de 0,3 mg/l sur l'ensemble du réseau.”
How high are PFAS levels in Fagnières's drinking water?
The total of 20 PFAS ("forever chemicals") was last measured at 16 ng/L. The EU limit is 100 ng/L, so this water is at 16 % of the limit. (below the EU limit)
Does the water in Fagnières also meet the strictest limits in Europe?
No. The four most harmful PFAS add up to 10 ng/L. That is 2.5 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 Fagnières'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 Fagnières?
The water hardness in Fagnières is 20.5 °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.
Nearby communes
The closest to Fagnières 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=51242
- License
- Licence Ouverte / Open Licence (Etalab)
- Retrieved
- 21 September 2026
- Supply networks
- FAGNIERES
Water report for Fagnières
Get new PFAS results for Fagnières, 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.