PFAS in Duneau's tap water: 2.7 ng/L, 5.4x our 0.5 ng/L benchmark
Last PFAS check: · Source: Hub'eau
PFAS in drinking water
5.4× 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.
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 88% of the cities we track
checked on 29 July 2025
20 PFAS (see each substance)
| PFAS substance | Value |
|---|---|
| Acide sulfonique de perfluorooctane (PFOS) | 0.002 µg/L |
| Acide perfluoro-octanoïque (PFOA) | 0.0007 µg/L |
| Perfluorohexane sulfonate (PFHXS) | <0,0005 µg/L |
| Acide perfluoroheptanoïque (PFHPA) | <0,001 µg/L |
| Acide perfluorononane sulfonique (PFNS) | <0,001 µg/L |
| Acide perfluorohexanoïque (PFHXA) | <0,001 µg/L |
| Acide sulfonique de perfluorobutane (PFBS) | <0,001 µg/L |
| Acide perfluorododécanoique (PFDoDA) | <0,0015 µg/L |
| Acide perfluoropentane sulfonique (PFPS) | <0,001 µg/L |
| Acide perfluoro tridecane sulfonique (PFTrDS) | <0,0015 µg/L |
| Acide perfluorodecane sulfonique (PFDS) | <0,001 µg/L |
| Acide perfluoro-decanoïque (PFDA) | <0,0015 µg/L |
| Acide perfluoro tridecanoique (PFTrDA) | <0,001 µg/L |
| Acide perfluorobutanoïque (PFBA) | <0,0015 µg/L |
| Acide perfluoroheptane sulfonique (PFHpS) | <0,001 µg/L |
| Acide perfluoro undecane sulfonique (PFUnDS) | <0,0015 µg/L |
| Acide perfluoropentanoïque (PFPEA) | <0,0005 µg/L |
| Acide perfluorododécane sulfonique (PFDoDS) | <0,0015 µg/L |
| Acide perfluoro-nonanoïque (PFNA) | <0,0005 µg/L |
| Acide perfluoro undecanoïque (PFUnA) | <0,0015 µg/L |
Above our health benchmark. Here are some filter options.
- EU legal limit
- 2.7 ng/L sum of 20 PFAS, below the 100 ng/L limit
- Last PFAS test
- 29 July 2025
- Water supplier
- VEOLIA EAU-CFSP-AGENCE LE MANS
In Duneau, the 4 most closely watched PFAS (PFAS-4) add up to 2.7 ng/L (0.0027 µg/L) at the latest PFAS check on 29 July 2025. That's 5.4 times our 0.5 ng/L health benchmark, but below Sweden's legal limit of 4 ng/L. Sum of 20 PFAS: 2.7 ng/L (0.0027 µg/L), below the EU legal limit (100 ng/L). 2 checks since 18 March 2025: sum of 20 PFAS up to 2.7 ng/L, sometimes below the detection limit. Source: Hub'eau, Qualité de l'eau potable (Ministère de la Santé / OFB / BRGM).
Details and sources
PFAS over time in Duneau
2 PFAS checks since 18 March 2025, from the published measurements.
“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 |
|---|---|---|
| 2.7 ng/L – < 3.7 ng/L · calculated | 2.7 ng/L | |
| < 10 ng/L · calculated | < detection limit |
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 20 test results
| What was tested | Value | Limit | Status |
|---|---|---|---|
| Nitrate | 17 mg/L | ≤ 50 mg/L | within the limit |
| Nitrite | <0,010 mg/L | ≤ 0.5 mg/L | within the limit |
| Lead | 0.7 µg/L | ≤ 10 µg/L | within the limit |
| Copper | 0.0466 mg(Cu)/L | ≤ 2 mg(Cu)/L | within the limit |
| Nickel | 0.4 µg/L | ≤ 20 µg/L | within the limit |
| Arsenic | <0,2 µg/L | ≤ 10 µg/L | within the limit |
| Cadmium | <0,010 µg/L | ≤ 5 µg/L | within the limit |
| Chromium | 0.3 µg/L | ≤ 50 µg/L | within the limit |
| Fluoride | 0.098 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 | 7.4 unité pH | 6.5–9 unité pH | within the limit |
| Water hardness | 31.6 °f | no limit | for reference |
| Electrical conductivity | 660 µS/cm | 200–1,100 µS/cm | within the limit |
| Chloride | 25.3 mg/L | ≤ 250 mg/L | within the limit |
| Sulphate | 29 mg/L | ≤ 250 mg/L | within the limit |
| Sodium | 10.9 mg/L | ≤ 200 mg/L | within the limit |
| Iron | 94 µg/L | ≤ 200 µg/L | within the limit |
| Turbidity | <0,30 NFU | ≤ 2 NFU | within the limit |
Frequently asked questions
Is tap water in Duneau safe to drink?
Yes. At the check on 8 July 2026, the tap water in Duneau was within every limit tested. “Eau d'alimentation conforme aux limites de qualité et non conforme aux références de qualité.”
How high are PFAS levels in Duneau's drinking water?
The total of 20 PFAS ("forever chemicals") was last measured at 2.7 ng/L. The EU limit is 100 ng/L, so this water is at 3 % of the limit. (below the EU limit)
Does the water in Duneau 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 2.7 ng/L stays below.
Are PFAS levels rising in Duneau'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 Duneau?
The water hardness in Duneau is 31.6 °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 21 September 2026.
Same water network
Same distribution network as Duneau, so in principle the same water.
Nearby communes
The closest to Duneau 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=72122
- License
- Licence Ouverte / Open Licence (Etalab)
- Retrieved
- 21 September 2026
- Supply networks
- CONNERRE-DUNEAU
Water report for Duneau
Get new PFAS results for Duneau, 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.