PFAS in Montfrin's tap water: 21 ng/L, 42x our 0.5 ng/L benchmark
Last PFAS check: · Source: Hub'eau
PFAS in drinking water
42× 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 99% of the cities we track
checked on 15 April 2026
20 PFAS (see each substance)
| PFAS substance | Value |
|---|---|
| Acide perfluorobutanoïque (PFBA) | 0.015 µg/L |
| Acide perfluoropentanoïque (PFPEA) | 0.013 µg/L |
| Acide perfluorohexanoïque (PFHXA) | 0.01 µg/L |
| Acide perfluoro-octanoïque (PFOA) | 0.009 µg/L |
| Perfluorohexane sulfonate (PFHXS) | 0.006 µg/L |
| Acide perfluoroheptanoïque (PFHPA) | 0.006 µg/L |
| Acide sulfonique de perfluorooctane (PFOS) | 0.005 µg/L |
| Acide sulfonique de perfluorobutane (PFBS) | 0.002 µg/L |
| Acide perfluoropentane sulfonique (PFPS) | 0.001 µg/L |
| Acide perfluoro-nonanoïque (PFNA) | 0.001 µg/L |
| Acide perfluorononane sulfonique (PFNS) | <0,002 µg/L |
| Acide perfluoroheptane sulfonique (PFHpS) | <0,002 µg/L |
| Acide perfluorodecane sulfonique (PFDS) | <0,001 µg/L |
| Acide perfluoro undecanoïque (PFUnA) | <0,001 µg/L |
| Acide perfluoro tridecanoique (PFTrDA) | <0,001 µg/L |
| Acide perfluorododécane sulfonique (PFDoDS) | <0,001 µg/L |
| Acide perfluoro tridecane sulfonique (PFTrDS) | <0,005 µg/L |
| Acide perfluoro undecane sulfonique (PFUnDS) | <0,002 µg/L |
| Acide perfluorododécanoique (PFDoDA) | <0,001 µg/L |
| Acide perfluoro-decanoïque (PFDA) | <0,001 µg/L |
Above our health benchmark. Here are some filter options.
- EU legal limit
- 68 ng/L sum of 20 PFAS, below the 100 ng/L limit
- Last PFAS test
- 15 April 2026
- Water supplier
- MAIRIE DE MONTFRIN
In Montfrin, the 4 most closely watched PFAS (PFAS-4) add up to 21 ng/L (0.021 µg/L) at the latest PFAS check on 15 April 2026. That's 42 times our 0.5 ng/L health benchmark, and above Sweden's legal limit of 4 ng/L. Sum of 20 PFAS: 68 ng/L (0.068 µg/L), below the EU legal limit (100 ng/L). Source: Hub'eau, Qualité de l'eau potable (Ministère de la Santé / OFB / BRGM).
Details and sources
PFAS over time in Montfrin
A single PFAS check has been published for Montfrin so far (15 April 2026). A history will build up with the next checks; this page is refreshed weekly.
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 | 9.6 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 | 0.048 mg(Cu)/L | ≤ 2 mg(Cu)/L | within the limit |
| Nickel | <5 µg/L | ≤ 20 µg/L | within the limit |
| Arsenic | 3.4 µg/L | ≤ 10 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 |
| Uranium | <10 µg/L | ≤ 30 µg/L | within the limit |
| Fluoride | 0.13 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 | 7.34 unité pH | 6.5–9 unité pH | within the limit |
| Water hardness | 34.31 °f | no limit | for reference |
| Electrical conductivity | 749 µS/cm | 200–1,100 µS/cm | within the limit |
| Chloride | 31.7 mg/L | ≤ 250 mg/L | within the limit |
| Sulphate | 85 mg/L | ≤ 250 mg/L | within the limit |
| Sodium | 21.6 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 Montfrin safe to drink?
Yes. At the check on 17 July 2026, the tap water in Montfrin 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 Montfrin's drinking water?
The total of 20 PFAS ("forever chemicals") was last measured at 68 ng/L. The EU limit is 100 ng/L, so this water is at 68 % of the limit. (below the EU limit)
Does the water in Montfrin also meet the strictest limits in Europe?
No. The four most harmful PFAS add up to 21 ng/L. That is 5.3 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).
How hard is the water in Montfrin?
The water hardness in Montfrin is 34.3 °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.
Nearby communes
The closest to Montfrin 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=30179
- License
- Licence Ouverte / Open Licence (Etalab)
- Retrieved
- 21 September 2026
- Supply networks
- MONTFRIN LES ORGNES, MONTFRIN SAINT MARTIN
Water report for Montfrin
Get new PFAS results for Montfrin, 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.