PFAS in Varennes-sur-Seine's tap water: 4 ng/L, 8x our 0.5 ng/L benchmark
Last PFAS check: · Source: Hub'eau
PFAS in drinking water
8× 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 Montereau-Fault-Yonne, on the same distribution network as Varennes-sur-Seine (MONTEREAU FAULT YONNE - CDC PDM). 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 90% of the cities we track
checked on 1 July 2026
20 PFAS (see each substance)
| PFAS substance | Value |
|---|---|
| Acide perfluorobutanoïque (PFBA) | 0.067 µg/L |
| Acide perfluoropentanoïque (PFPEA) | 0.005 µg/L |
| Acide sulfonique de perfluorobutane (PFBS) | 0.004 µg/L |
| Acide perfluorohexanoïque (PFHXA) | 0.003 µg/L |
| Acide sulfonique de perfluorooctane (PFOS) | 0.002 µg/L |
| Perfluorohexane sulfonate (PFHXS) | 0.002 µg/L |
| Acide perfluoropentane sulfonique (PFPS) | <0,001 µg/L |
| Acide perfluorododécane sulfonique (PFDoDS) | <0,001 µg/L |
| Acide perfluoro tridecanoique (PFTrDA) | <0,001 µg/L |
| Acide perfluoro-decanoïque (PFDA) | <0,001 µg/L |
| Acide perfluoroheptane sulfonique (PFHpS) | <0,002 µg/L |
| Acide perfluoro-nonanoïque (PFNA) | <0,001 µg/L |
| Acide perfluoro tridecane sulfonique (PFTrDS) | <0,005 µg/L |
| Acide perfluorodecane sulfonique (PFDS) | <0,001 µg/L |
| Acide perfluorododécanoique (PFDoDA) | <0,001 µg/L |
| Acide perfluoroheptanoïque (PFHPA) | <0,001 µg/L |
| Acide perfluoro-octanoïque (PFOA) | <0,001 µg/L |
| Acide perfluorononane sulfonique (PFNS) | <0,002 µg/L |
| Acide perfluoro undecanoïque (PFUnA) | <0,001 µg/L |
| Acide perfluoro undecane sulfonique (PFUnDS) | <0,002 µg/L |
Above our health benchmark. Here are some filter options.
- EU legal limit
- 83 ng/L sum of 20 PFAS, below the 100 ng/L limit
- Last PFAS test
- 1 July 2026
- Water supplier
- VEOLIA - GIE ILE DE FRANCE
In Varennes-sur-Seine, the 4 most closely watched PFAS (PFAS-4) add up to 4 ng/L (0.004 µg/L) at the latest PFAS check on 1 July 2026. That's 8 times our 0.5 ng/L health benchmark, exactly at Sweden's legal limit of 4 ng/L. Sum of 20 PFAS: 83 ng/L (0.083 µg/L), below the EU legal limit (100 ng/L). Sampled in Montereau-Fault-Yonne, on the same network. 8 checks since 9 January 2026: PFAS-4 up to 11 ng/L, sometimes below the detection limit, averaging at least 3.29 ng/L over 12 months (non-detects as 0). Rising on the main network. Source: Hub'eau, Qualité de l'eau potable (Ministère de la Santé / OFB / BRGM).
Details and sources
PFAS over time in Varennes-sur-Seine
23 PFAS checks since 18 April 2025, from the published measurements. Samples from 2 communes on the same network: it's the same water, so each one applies to Varennes-sur-Seine. Samples come from 2 distribution networks. The trend refers to the network “MONTEREAU FAULT YONNE - CDC PDM”.
“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 |
|---|---|---|---|---|
| 4 ng/L | 83 ng/L | Montereau-Fault-Yonne | MONTEREAU FAULT YONNE - CDC PDM | |
| < 4 ng/L | < 29 ng/L | Esmans | VARENNES SUR SEINE - CDC PDM | |
| 5 ng/L | 78 ng/L | Montereau-Fault-Yonne | MONTEREAU FAULT YONNE - CDC PDM | |
| 11 ng/L | 35 ng/L | Montereau-Fault-Yonne | MONTEREAU FAULT YONNE - CDC PDM | |
| 1 ng/L | 62 ng/L | Montereau-Fault-Yonne | MONTEREAU FAULT YONNE - CDC PDM | |
| 1 ng/L | 82 ng/L | Montereau-Fault-Yonne | MONTEREAU FAULT YONNE - CDC PDM | |
| 1 ng/L | 63 ng/L | Montereau-Fault-Yonne | MONTEREAU FAULT YONNE - CDC PDM | |
| < 4 ng/L | 64 ng/L | Montereau-Fault-Yonne | MONTEREAU FAULT YONNE - CDC PDM | |
| < 4 ng/L · calculated | 70 ng/L | Montereau-Fault-Yonne | MONTEREAU FAULT YONNE - CDC PDM | |
| < 4 ng/L · calculated | 78 ng/L | Montereau-Fault-Yonne | MONTEREAU FAULT YONNE - CDC PDM | |
| < 4 ng/L · calculated | 81 ng/L | Montereau-Fault-Yonne | MONTEREAU FAULT YONNE - CDC PDM | |
| < 4 ng/L · calculated | 67 ng/L | Montereau-Fault-Yonne | MONTEREAU FAULT YONNE - CDC PDM |
Show the 11 earlier checks (back to 18 April 2025)
| < 4 ng/L · calculated | < 29 ng/L | Esmans | VARENNES SUR SEINE - CDC PDM | |
| < 4 ng/L · calculated | 80 ng/L | Montereau-Fault-Yonne | MONTEREAU FAULT YONNE - CDC PDM | |
| < 4 ng/L · calculated | 82 ng/L | Montereau-Fault-Yonne | MONTEREAU FAULT YONNE - CDC PDM | |
| < 4 ng/L · calculated | 67 ng/L | Montereau-Fault-Yonne | MONTEREAU FAULT YONNE - CDC PDM | |
| < 4 ng/L · calculated | 72 ng/L | Montereau-Fault-Yonne | MONTEREAU FAULT YONNE - CDC PDM | |
| < 4 ng/L · calculated | 84 ng/L | Montereau-Fault-Yonne | MONTEREAU FAULT YONNE - CDC PDM | |
| < 4 ng/L · calculated | 89 ng/L | Montereau-Fault-Yonne | MONTEREAU FAULT YONNE - CDC PDM | |
| < 4 ng/L · calculated | 95 ng/L | Montereau-Fault-Yonne | MONTEREAU FAULT YONNE - CDC PDM | |
| < 4 ng/L · calculated | 102 ng/L | Montereau-Fault-Yonne | MONTEREAU FAULT YONNE - CDC PDM | |
| < 4 ng/L · calculated | 78 ng/L | Montereau-Fault-Yonne | MONTEREAU FAULT YONNE - CDC PDM | |
| < 4 ng/L · calculated | 102 ng/L | Montereau-Fault-Yonne | MONTEREAU FAULT YONNE - CDC PDM |
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 | 33.2 mg/L | ≤ 50 mg/L | within the limit |
See all 14 test results
| What was tested | Value | Limit | Status |
|---|---|---|---|
| Nitrate | 33.2 mg/L | ≤ 50 mg/L | within the limit |
| Nitrite | <0,01 mg/L | ≤ 0.5 mg/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 | 7.46 unité pH | 6.5–9 unité pH | within the limit |
| Water hardness | 30.79 °f | no limit | for reference |
| Electrical conductivity | 625 µS/cm | 200–1,100 µS/cm | within the limit |
| Chloride | 23.9 mg/L | ≤ 250 mg/L | within the limit |
| Sulphate | 15.1 mg/L | ≤ 250 mg/L | within the limit |
| Iron | <10 µg/L | ≤ 200 µg/L | within the limit |
| Turbidity | 0.21 NFU | ≤ 2 NFU | within the limit |
Frequently asked questions
Is tap water in Varennes-sur-Seine safe to drink?
Yes. At the check on 15 July 2026, the tap water in Varennes-sur-Seine was within every limit tested. “Eau d'alimentation ne satisfaisant pas aux références de qualité pour le paramètre température. Une température excessive peut favoriser un développement microbiologique de certains germes et bactéries nuisibles pour la santé humaine, comme les légionelles par exemple. Elle favorise aussi la dissolution de certains métaux dans l'eau, contenu dans les canalisations, provoquant une coloration de l'eau. Il est recommandé de procéder à des purges régulières sur le réseau intérieur.”
How high are PFAS levels in Varennes-sur-Seine's drinking water?
The total of 20 PFAS ("forever chemicals") was last measured at 83 ng/L. The EU limit is 100 ng/L, so this water is at 83 % of the limit. (below the EU limit)
Does the water in Varennes-sur-Seine also meet the strictest limits in Europe?
Yes. Even against Europe's strictest legal limit, Sweden's 4 ng/L in force since 2026, the measured value of 4 ng/L stays below.
Are PFAS levels rising in Varennes-sur-Seine's tap water?
Yes. On the main network, the PFAS-4 sum rose from 1 ng/L (23 February 2026) to 4 ng/L (1 July 2026) across 6 quantified checks. pfasnearme's benchmark is 0.5 ng/L as an annual mean. These history statistics use laboratory-published sums only.
How hard is the water in Varennes-sur-Seine?
The water hardness in Varennes-sur-Seine is 30.8 °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 21 September 2026.
Same water network
Same distribution network as Varennes-sur-Seine, so in principle the same water.
Nearby communes
The closest to Varennes-sur-Seine 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=77482
- License
- Licence Ouverte / Open Licence (Etalab)
- Retrieved
- 21 September 2026
- Supply networks
- VARENNES SUR SEINE - CDC PDM, MONTEREAU FAULT YONNE - CDC PDM
Water report for Varennes-sur-Seine
Get new PFAS results for Varennes-sur-Seine, 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.