PFAS in Frans's tap water: 7 ng/L, 14x our 0.5 ng/L benchmark
Last PFAS check: · Source: Hub'eau
PFAS in drinking water
14× 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 Fareins, on the same distribution network as Frans (JASSANS-RIOTTIER). 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 94% of the cities we track
checked on 3 April 2026
20 PFAS (see each substance)
| PFAS substance | Value |
|---|---|
| Acide perfluoropentanoïque (PFPEA) | 0.005 µg/L |
| Perfluorohexane sulfonate (PFHXS) | 0.005 µg/L |
| Acide perfluorohexanoïque (PFHXA) | 0.004 µg/L |
| Acide perfluorobutanoïque (PFBA) | 0.003 µg/L |
| Acide sulfonique de perfluorobutane (PFBS) | 0.001 µg/L |
| Acide perfluoro-octanoïque (PFOA) | 0.001 µg/L |
| Acide sulfonique de perfluorooctane (PFOS) | 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 undecanoïque (PFUnA) | <0,001 µg/L |
| Acide perfluoro-decanoïque (PFDA) | <0,001 µg/L |
| Acide perfluoroheptanoïque (PFHPA) | <0,001 µg/L |
| Acide perfluorododécane sulfonique (PFDoDS) | <0,001 µg/L |
| Acide perfluorodecane sulfonique (PFDS) | <0,001 µg/L |
| Acide perfluorononane sulfonique (PFNS) | <0,002 µg/L |
| Acide perfluoro-nonanoïque (PFNA) | <0,001 µg/L |
| Acide perfluorododécanoique (PFDoDA) | <0,001 µg/L |
| Acide perfluoro undecane sulfonique (PFUnDS) | <0,002 µg/L |
| Acide perfluoroheptane sulfonique (PFHpS) | <0,002 µg/L |
Above our health benchmark. Here are some filter options.
- EU legal limit
- 20 ng/L sum of 20 PFAS, below the 100 ng/L limit
- Last PFAS test
- 3 April 2026
- Water supplier
- VEOLIA EAU - CGE
In Frans, the 4 most closely watched PFAS (PFAS-4) add up to 7 ng/L (0.007 µg/L) at the latest PFAS check on 3 April 2026. That's 14 times our 0.5 ng/L health benchmark, and above Sweden's legal limit of 4 ng/L. Sum of 20 PFAS: 20 ng/L (0.02 µg/L), below the EU legal limit (100 ng/L). Sampled in Fareins, on the same network. 2 checks since 1 December 2025: PFAS-4 from 7 ng/L to 15 ng/L. Source: Hub'eau, Qualité de l'eau potable (Ministère de la Santé / OFB / BRGM).
Details and sources
PFAS over time in Frans
14 PFAS checks since 8 March 2023, from the published measurements. Samples from 2 communes on the same network: it's the same water, so each one applies to Frans.
“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 |
|---|---|---|---|
| 7 ng/L | 20 ng/L | Fareins | |
| 15 ng/L | 29 ng/L | Villefranche-sur-Saône | |
| 3 ng/L – < 5 ng/L · calculated | 19 ng/L | Villefranche-sur-Saône | |
| 2 ng/L – < 5 ng/L · calculated | 14 ng/L | Villefranche-sur-Saône | |
| 11 ng/L – < 12 ng/L · calculated | 32 ng/L | Villefranche-sur-Saône | |
| 10 ng/L – < 11 ng/L · calculated | 25 ng/L | Villefranche-sur-Saône | |
| 9 ng/L – < 10 ng/L · calculated | 19 ng/L | Villefranche-sur-Saône | |
| 8.3 ng/L – < 9.3 ng/L · calculated | 16 ng/L | Villefranche-sur-Saône | |
| 13.1 ng/L – < 14.1 ng/L · calculated | 23.4 ng/L | Villefranche-sur-Saône | |
| 11.1 ng/L – < 12.1 ng/L · calculated | 25.3 ng/L | Villefranche-sur-Saône | |
| 11.1 ng/L – < 12.1 ng/L · calculated | 25.3 ng/L | Villefranche-sur-Saône | |
| 13 ng/L – < 14 ng/L · calculated | 27.6 ng/L | Villefranche-sur-Saône |
Show the 2 earlier checks (back to 8 March 2023)
| 11.5 ng/L – < 16.5 ng/L · calculated | 22.6 ng/L | Villefranche-sur-Saône | |
| 11.5 ng/L – < 16.5 ng/L · calculated | 22.6 ng/L | Villefranche-sur-Saône |
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 17 test results
| What was tested | Value | Limit | Status |
|---|---|---|---|
| Nitrate | 21.2 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 | <0,010 mg(Cu)/L | ≤ 2 mg(Cu)/L | within the limit |
| Nickel | <5 µg/L | ≤ 20 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 |
| 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 | 30.62 °f | no limit | for reference |
| Electrical conductivity | 789 µS/cm | 200–1,100 µS/cm | within the limit |
| Chloride | 66 mg/L | ≤ 250 mg/L | within the limit |
| Sulphate | 49.8 mg/L | ≤ 250 mg/L | within the limit |
| Iron | <10 µg/L | ≤ 200 µg/L | within the limit |
| Turbidity | 0.12 NFU | ≤ 2 NFU | within the limit |
Frequently asked questions
Is tap water in Frans safe to drink?
Yes. At the check on 20 April 2026, the tap water in Frans 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 Frans's drinking water?
The total of 20 PFAS ("forever chemicals") was last measured at 20 ng/L. The EU limit is 100 ng/L, so this water is at 20 % of the limit. (below the EU limit)
Does the water in Frans also meet the strictest limits in Europe?
No. The four most harmful PFAS add up to 7 ng/L. That is 1.75 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 Frans's tap water?
Too few quantified checks to say (2 since 8 March 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 Frans?
The water hardness in Frans is 30.6 °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 12 September 2026.
Same water network
Same distribution network as Frans, so in principle the same water.
Nearby communes
The closest to Frans 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=01166
- License
- Licence Ouverte / Open Licence (Etalab)
- Retrieved
- 12 September 2026
- Supply networks
- JASSANS-RIOTTIER
Water report for Frans
Get new PFAS results for Frans, 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.