PFAS in La Ferté-Vidame's tap water: under 6 ng/L, none of the four main PFAS detected
Last PFAS check: · Source: Hub'eau
PFAS in drinking water
No PFAS detected
The lab sees nothing below 6 ng/L, 12 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.
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 1 to 2 ng/L upward. None reached that limit, so their total is below 6 ng/L rather than zero.
checked on 11 February 2025
20 PFAS (see each substance)
| PFAS substance | Value |
|---|---|
| Acide sulfonique de perfluorooctane (PFOS) | <0,0010 µg/L |
| Acide perfluoro undecanoïque (PFUnA) | <0,0020 µg/L |
| Acide sulfonique de perfluorobutane (PFBS) | <0,0050 µg/L |
| Acide perfluorohexanoïque (PFHXA) | <0,0050 µg/L |
| Acide perfluoro-decanoïque (PFDA) | <0,0020 µg/L |
| Acide perfluorodecane sulfonique (PFDS) | <0,0010 µg/L |
| Acide perfluoro tridecanoique (PFTrDA) | <0,0020 µg/L |
| Acide perfluoro undecane sulfonique (PFUnDS) | <0,0010 µg/L |
| Acide perfluorobutanoïque (PFBA) | <0,0050 µg/L |
| Acide perfluorononane sulfonique (PFNS) | <0,0010 µg/L |
| Acide perfluorododécanoique (PFDoDA) | <0,0020 µg/L |
| Acide perfluoro-nonanoïque (PFNA) | <0,0010 µg/L |
| Acide perfluoroheptanoïque (PFHPA) | <0,0050 µg/L |
| Perfluorohexane sulfonate (PFHXS) | <0,0020 µg/L |
| Acide perfluoroheptane sulfonique (PFHpS) | <0,0020 µg/L |
| Acide perfluoro-octanoïque (PFOA) | <0,0020 µg/L |
| Acide perfluoro tridecane sulfonique (PFTrDS) | <0,0010 µg/L |
| Acide perfluoropentane sulfonique (PFPS) | <0,0010 µg/L |
| Acide perfluorododécane sulfonique (PFDoDS) | <0,0010 µg/L |
| Acide perfluoropentanoïque (PFPEA) | <0,0020 µg/L |
None found. The lab sees nothing below 6 ng/L, so our 0.5 ng/L benchmark cannot be checked.
Water report for La Ferté-Vidame
Get new PFAS results for La Ferté-Vidame, with a short explanation. At most one update a week, only when there's something new.
- EU legal limit
- none detected sum of 20 PFAS below the detection limit, limit 100 ng/L
- Last PFAS test
- 11 February 2025
- Water supplier
- VEOLIA EAU - CIE GENERALE DES EAUX
In La Ferté-Vidame, none of the 4 most closely watched PFAS (PFAS-4) was detected at the latest PFAS check on 11 February 2025. The total is below 6 ng/L, the sum of the detection limits and 12 times our 0.5 ng/L benchmark. Sum of 20 PFAS: <SEUIL µg/L, below the EU legal limit (100 ng/L). 2 checks since 10 January 2025, sum of 20 PFAS always below the detection limit (1 ng/L). Source: Hub'eau, Qualité de l'eau potable (Ministère de la Santé / OFB / BRGM).
Details and sources
PFAS over time in La Ferté-Vidame
2 PFAS checks since 10 January 2025, from the published measurements. Samples from 2 communes on the same network: it's the same water, so each one applies to La Ferté-Vidame. Samples come from 2 distribution networks. The trend refers to the network “SIDEP DU VAL ST CYR-RESSUINTES”.
“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 | Network |
|---|---|---|---|---|
| < 6 ng/L · calculated | < detection limit | La Ferté-Vidame | LA FERTE VIDAME - REVEILLON | |
| < 4 ng/L · calculated | < 1 ng/L | Les Ressuintes | SIDEP DU VAL ST CYR-RESSUINTES |
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: Electrical conductivity 158 µS/cm on 1 July 2026 (reference 200–1,100 µS/cm). These are indicator parameters with reference values, not legal limits.
| What was tested | Value | Limit | Status |
|---|---|---|---|
| Electrical conductivity | 158 µS/cm | 200–1,100 µS/cm | below the reference value |
See all 20 test results
| What was tested | Value | Limit | Status |
|---|---|---|---|
| Nitrate | 5.3 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 | 0.273 mg(Cu)/L | ≤ 2 mg(Cu)/L | within the limit |
| Nickel | <5 µg/L | ≤ 20 µg/L | within the limit |
| Arsenic | <0,25 µg/L | ≤ 10 µg/L | within the limit |
| Cadmium | 0.07 µg/L | ≤ 5 µg/L | within the limit |
| Chromium | 1 µg/L | ≤ 50 µg/L | within the limit |
| Fluoride | 0.152 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 | 6.9 unité pH | 6.5–9 unité pH | within the limit |
| Water hardness | 17.12 °f | no limit | for reference |
| Electrical conductivity | 158 µS/cm | 200–1,100 µS/cm | below the reference value |
| Chloride | 15.2 mg/L | ≤ 250 mg/L | within the limit |
| Sulphate | 2.4 mg/L | ≤ 250 mg/L | within the limit |
| Sodium | 9.8 mg/L | ≤ 200 mg/L | within the limit |
| Iron | 11 µg/L | ≤ 200 µg/L | within the limit |
| Turbidity | <0,1 NFU | ≤ 2 NFU | within the limit |
Frequently asked questions
Is tap water in La Ferté-Vidame safe to drink?
Yes. At the check on 1 July 2026, the tap water in La Ferté-Vidame was within every limit tested. Outside a reference value: Electrical conductivity 158 µS/cm on 1 July 2026 (reference 200–1,100 µS/cm). These are indicator parameters with reference values, not legal limits. “Eau d'alimentation conforme aux limites de qualité en vigueur. Toutefois, la référence de qualité n’est pas atteinte pour le paramètre conductivité. Une attention particulière doit être portée sur ce paramètre.”
How high are PFAS levels in La Ferté-Vidame's drinking water?
The total of 20 PFAS ("forever chemicals") was last measured at –. The EU limit is 100 ng/L, so this water is at – of the limit. (below the EU limit)
Does the water in La Ferté-Vidame 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 6 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 La Ferté-Vidame'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 La Ferté-Vidame?
The water hardness in La Ferté-Vidame is 17.1 °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.
Same water network
Same distribution network as La Ferté-Vidame, so in principle the same water.
Nearby communes
The closest to La Ferté-Vidame 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=28149
- License
- Licence Ouverte / Open Licence (Etalab)
- Retrieved
- 21 September 2026
- Supply networks
- SIDEP DU VAL ST CYR-RESSUINTES, LA FERTE VIDAME - REVEILLON
This site is a data project, not an official source. If in doubt, check with your water supplier or local authority.