PFAS in Montaïn's tap water: 2 ng/L, 4x our 0.5 ng/L benchmark
Last PFAS check: · Source: Hub'eau
PFAS in drinking water
4× 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 Mas-Grenier, on the same distribution network as Montaïn (MAS GRENIER (UDI)). 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 85% of the cities we track
checked on 5 August 2025
20 PFAS (see each substance)
| PFAS substance | Value |
|---|---|
| Acide perfluoropentanoïque (PFPEA) | 0.003 µg/L |
| Acide perfluorohexanoïque (PFHXA) | 0.003 µg/L |
| Perfluorohexane sulfonate (PFHXS) | 0.002 µg/L |
| Acide perfluoroheptanoïque (PFHPA) | 0.002 µg/L |
| Acide perfluoro tridecane sulfonique (PFTrDS) | <0,0015 µg/L |
| Acide perfluorododécane sulfonique (PFDoDS) | <0,0015 µg/L |
| Acide perfluorononane sulfonique (PFNS) | <0,0015 µg/L |
| Acide perfluorobutanoïque (PFBA) | <0,005 µg/L |
| Acide perfluoro-nonanoïque (PFNA) | <0,0015 µg/L |
| Acide perfluoro tridecanoique (PFTrDA) | <0,005 µg/L |
| Acide sulfonique de perfluorooctane (PFOS) | <0,0015 µg/L |
| Acide perfluorododécanoique (PFDoDA) | <0,0015 µg/L |
| Acide perfluorodecane sulfonique (PFDS) | <0,0015 µg/L |
| Acide perfluoropentane sulfonique (PFPS) | <0,005 µg/L |
| Acide sulfonique de perfluorobutane (PFBS) | <0,005 µg/L |
| Acide perfluoro undecanoïque (PFUnA) | <0,0015 µg/L |
| Acide perfluoro-decanoïque (PFDA) | <0,0015 µg/L |
| Acide perfluoro undecane sulfonique (PFUnDS) | <0,0015 µg/L |
| Acide perfluoro-octanoïque (PFOA) | <0,0015 µg/L |
| Acide perfluoroheptane sulfonique (PFHpS) | <0,0015 µg/L |
Above our health benchmark. Here are some filter options.
- EU legal limit
- none detected sum of 20 PFAS below the detection limit, limit 100 ng/L
- Last PFAS test
- 5 August 2025
- Water supplier
- VEOLIA EAU
In Montaïn, the 4 most closely watched PFAS (PFAS-4) add up to 2 ng/L (0.002 µg/L) at the latest PFAS check on 5 August 2025. That's 4 times our 0.5 ng/L health benchmark, but below Sweden's legal limit of 4 ng/L. Sum of 20 PFAS: <0,044 µg/L, below the EU legal limit (100 ng/L). Sampled in Mas-Grenier, on the same network. Source: Hub'eau, Qualité de l'eau potable (Ministère de la Santé / OFB / BRGM).
Details and sources
PFAS over time in Montaïn
A single PFAS check has been published for Montaïn so far (5 August 2025). A history will build up with the next checks; this page is refreshed weekly.
What the latest check found
The authorities have not published an overall verdict for this water.
See all 12 test results
| What was tested | Value | Limit | Status |
|---|---|---|---|
| Nitrate | 8.4 mg/L | ≤ 50 mg/L | within the limit |
| Lead | 1 µg/L | ≤ 10 µg/L | within the limit |
| Copper | 0.061 mg/L | ≤ 2 mg/L | within the limit |
| Nickel | <1 µg/L | ≤ 20 µg/L | within the limit |
| Cadmium | <0,05 µg/L | ≤ 5 µg/L | within the limit |
| Chromium | <1 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 | 8.2 unité pH | 6.5–9 unité pH | within the limit |
| Electrical conductivity | 381 µS/cm | 200–1,100 µS/cm | within the limit |
| Turbidity | 0.14 NFU | ≤ 2 NFU | within the limit |
Frequently asked questions
Is tap water in Montaïn safe to drink?
All the values shown here (3 June 2026) are within the legal limits, but the authorities have not published an overall verdict for this water. “Eau d'alimentation conforme aux exigences de qualité en vigueur pour l'ensemble des paramètres mesurés.”
How high are PFAS levels in Montaïn's drinking water?
At the latest check the total of 20 PFAS ("forever chemicals") was below the laboratory's reporting limit of 44 ng/L. The EU limit is 100 ng/L, so this water is under 44 % of the limit. (below the EU limit)
Does the water in Montaïn 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 2 ng/L stays below.
How hard is the water in Montaïn?
No hardness value is available for Montaïn in this source.
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 Montaïn, so in principle the same water.
Nearby communes
The closest to Montaïn 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=82118
- License
- Licence Ouverte / Open Licence (Etalab)
- Retrieved
- 12 September 2026
- Supply networks
- MAS GRENIER (UDI)
Water report for Montaïn
Get new PFAS results for Montaïn, 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.