PFAS in the tap water of Saint-Bernard (Ain): 38 ng/L, 76x our 0.5 ng/L benchmark
Last PFAS check: · Source: Hub'eau
PFAS in drinking water
76× 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.
More about this result
The US also limits PFOA and PFOS to 4 ng/L each, per substance.
One of these four, PFOA, is classified as causing cancer in humans by the WHO's cancer research agency (IARC).
More PFAS than in 100% of the cities we track
checked on 1 July 2026
20 PFAS (see each substance)
| PFAS substance | Value |
|---|---|
| Acide sulfonique de perfluorooctane (PFOS) | 0.019 µg/L |
| Acide perfluoropentanoïque (PFPEA) | 0.012 µg/L |
| Acide perfluoro-octanoïque (PFOA) | 0.01 µg/L |
| Acide perfluorohexanoïque (PFHXA) | 0.009 µg/L |
| Acide perfluorobutanoïque (PFBA) | 0.008 µg/L |
| Perfluorohexane sulfonate (PFHXS) | 0.005 µg/L |
| Acide perfluoroheptanoïque (PFHPA) | 0.005 µg/L |
| Acide perfluoro-nonanoïque (PFNA) | 0.004 µg/L |
| Acide sulfonique de perfluorobutane (PFBS) | 0.004 µg/L |
| Acide perfluoropentane sulfonique (PFPS) | 0.001 µg/L |
| Acide perfluorononane sulfonique (PFNS) | <0,002 µg/L |
| Acide perfluoro undecane sulfonique (PFUnDS) | <0,002 µg/L |
| Acide perfluoro-decanoïque (PFDA) | <0,001 µg/L |
| Acide perfluorododécanoique (PFDoDA) | <0,001 µg/L |
| Acide perfluoro tridecane sulfonique (PFTrDS) | <0,005 µg/L |
| Acide perfluoroheptane sulfonique (PFHpS) | <0,002 µg/L |
| Acide perfluorododécane sulfonique (PFDoDS) | <0,001 µg/L |
| Acide perfluoro undecanoïque (PFUnA) | <0,001 µg/L |
| Acide perfluoro tridecanoique (PFTrDA) | <0,001 µg/L |
| Acide perfluorodecane sulfonique (PFDS) | <0,001 µg/L |
Above our health benchmark. Here are some filter options.
- EU legal limit
- 77 ng/L sum of 20 PFAS, below the 100 ng/L limit
- Last PFAS test
- 1 July 2026
- Water supplier
- SUEZ EAU FRANCE - ARA
In Saint-Bernard, the 4 most closely watched PFAS (PFAS-4) add up to 38 ng/L (0.038 µg/L) at the latest PFAS check on 1 July 2026. That's 76 times our 0.5 ng/L health benchmark, and above Sweden's legal limit of 4 ng/L. Sum of 20 PFAS: 77 ng/L (0.077 µg/L), below the EU legal limit (100 ng/L). 2 checks since 13 October 2025: PFAS-4 from 33 ng/L to 38 ng/L. Source: Hub'eau, Qualité de l'eau potable (Ministère de la Santé / OFB / BRGM).
Details and sources
PFAS over time in Saint-Bernard
12 PFAS checks since 25 April 2023, from the published measurements. Samples from 2 communes on the same network: it's the same water, so each one applies to Saint-Bernard.
“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 |
|---|---|---|---|
| 38 ng/L | 77 ng/L | Saint-Bernard | |
| 33 ng/L | 67 ng/L | Anse | |
| 33 ng/L · calculated | 67 ng/L | Anse | |
| 28 ng/L · calculated | 59 ng/L | Anse | |
| 41 ng/L · calculated | 79 ng/L | Anse | |
| 40 ng/L · calculated | 79 ng/L | Anse | |
| 42 ng/L · calculated | 80 ng/L | Anse | |
| 31.5 ng/L · calculated | 61.1 ng/L | Anse | |
| 36.1 ng/L · calculated | 72.8 ng/L | Anse | |
| 37.7 ng/L · calculated | 67.7 ng/L | Anse | |
| 25.1 ng/L · calculated | 51.3 ng/L | Anse | |
| 31.3 ng/L · calculated | 54.4 ng/L | Anse |
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.
See all 21 test results
| What was tested | Value | Limit | Status |
|---|---|---|---|
| Nitrate | 12.5 mg/L | ≤ 50 mg/L | within the limit |
| Nitrite | <0,01 mg/L | ≤ 0.5 mg/L | within the limit |
| Lead | <2 µg/L | ≤ 10 µg/L | within the limit |
| Copper | 0.011 mg(Cu)/L | ≤ 2 mg(Cu)/L | within the limit |
| Nickel | <5 µg/L | ≤ 20 µg/L | within the limit |
| Arsenic | 2.3 µg/L | ≤ 10 µg/L | within the limit |
| Cadmium | <1 µg/L | ≤ 5 µg/L | within the limit |
| Chromium | N.M. µg/L | ≤ 6 µg/L | no verdict |
| Uranium | <10 µg/L | ≤ 30 µg/L | within the limit |
| Fluoride | 0.14 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 | 7.5 unité pH | 6.5–9 unité pH | within the limit |
| Water hardness | 27.14 °f | no limit | for reference |
| Electrical conductivity | 572 µS/cm | 200–1,100 µS/cm | within the limit |
| Chloride | 35.7 mg/L | ≤ 250 mg/L | within the limit |
| Sulphate | 33.9 mg/L | ≤ 250 mg/L | within the limit |
| Sodium | 15.6 mg/L | ≤ 200 mg/L | within the limit |
| Iron | <10 µg/L | ≤ 200 µg/L | within the limit |
| Turbidity | <0,1 NFU | ≤ 2 NFU | within the limit |
Frequently asked questions
Is tap water in Saint-Bernard safe to drink?
Yes. At the check on 1 July 2026, the tap water in Saint-Bernard was within every limit tested. “Eau d'alimentation conforme aux limites de qualité et non conforme aux références de qualité.”
How high are PFAS levels in Saint-Bernard's drinking water?
The total of 20 PFAS ("forever chemicals") was last measured at 77 ng/L. The EU limit is 100 ng/L, so this water is at 77 % of the limit. (below the EU limit)
Does the water in Saint-Bernard also meet the strictest limits in Europe?
No. The four most harmful PFAS add up to 38 ng/L. That is 9.5 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 Saint-Bernard's tap water?
Too few quantified checks to say (2 since 25 April 2023). pfasnearme adds each new publication weekly; a trend needs at least three quantified values. These history statistics use laboratory-published sums only.
How hard is the water in Saint-Bernard?
The water hardness in Saint-Bernard is 27.1 °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 Saint-Bernard 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=01339
- License
- Licence Ouverte / Open Licence (Etalab)
- Retrieved
- 21 September 2026
- Supply networks
- SAINT-BERNARD
Water report for Saint-Bernard
Get new PFAS results for Saint-Bernard, 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.