PFAS in Dinéault's tap water: 2.4 ng/L, 4.8x our 0.5 ng/L benchmark
Last PFAS check: · Source: Hub'eau
PFAS in drinking water
4.8× 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.
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 21 May 2026
20 PFAS (see each substance)
| PFAS substance | Value |
|---|---|
| Acide perfluorobutanoïque (PFBA) | 0.0089 µg/L |
| Acide sulfonique de perfluorooctane (PFOS) | 0.0024 µg/L |
| Acide perfluoro-nonanoïque (PFNA) | <0,001 µg/L |
| Acide perfluorononane sulfonique (PFNS) | <0,001 µg/L |
| Acide perfluoro-octanoïque (PFOA) | <0,002 µg/L |
| Acide perfluoro tridecanoique (PFTrDA) | <0,002 µg/L |
| Acide perfluoro-decanoïque (PFDA) | <0,002 µg/L |
| Acide perfluoroheptanoïque (PFHPA) | <0,005 µg/L |
| Perfluorohexane sulfonate (PFHXS) | <0,002 µg/L |
| Acide perfluorododécanoique (PFDoDA) | <0,002 µg/L |
| Acide perfluoroheptane sulfonique (PFHpS) | <0,002 µg/L |
| Acide perfluorohexanoïque (PFHXA) | <0,005 µg/L |
| Acide perfluorododécane sulfonique (PFDoDS) | <0,001 µg/L |
| Acide sulfonique de perfluorobutane (PFBS) | <0,005 µg/L |
| Acide perfluoropentane sulfonique (PFPS) | <0,001 µg/L |
| Acide perfluoro tridecane sulfonique (PFTrDS) | <0,001 µg/L |
| Acide perfluoropentanoïque (PFPEA) | <0,002 µg/L |
| Acide perfluoro undecane sulfonique (PFUnDS) | <0,001 µg/L |
| Acide perfluoro undecanoïque (PFUnA) | <0,002 µg/L |
| Acide perfluorodecane sulfonique (PFDS) | <0,001 µg/L |
Above our health benchmark. Here are some filter options.
- EU legal limit
- 11.3 ng/L sum of 20 PFAS, below the 100 ng/L limit
- Last PFAS test
- 21 May 2026
- Water supplier
- VEOLIA EAU BRETAGNE OUEST
In Dinéault, the 4 most closely watched PFAS (PFAS-4) add up to 2.4 ng/L (0.0024 µg/L) at the latest PFAS check on 21 May 2026. That's 4.8 times our 0.5 ng/L health benchmark, but below Sweden's legal limit of 4 ng/L. Sum of 20 PFAS: 11.3 ng/L (0.0113 µg/L), below the EU legal limit (100 ng/L). 10 checks since 14 April 2025: PFAS-4 up to 19.3 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 Dinéault
12 PFAS checks since 25 March 2025, from the published measurements. Samples from 3 communes on the same network: it's the same water, so each one applies to Dinéault. Samples come from 3 distribution networks. The trend refers to the network “CHATEAULIN - EXTERIEURS (AULNE)”.
“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 |
|---|---|---|---|---|
| 2.4 ng/L | 11.3 ng/L | Dinéault | DINEAULT - KERGAOC, DINEAULT - KERGAOC | |
| 19.3 ng/L | 30.6 ng/L | Dinéault | DINEAULT - LEZAFF, DINEAULT - LEZAFF | |
| < detection limit | < detection limit | Châteaulin | CHATEAULIN - EXTERIEURS (AULNE), CHATEAULIN - EXTERIEURS (AULNE) | |
| < detection limit | 2.6 ng/L | Dinéault | CHATEAULIN - EXTERIEURS (AULNE), CHATEAULIN - EXTERIEURS (AULNE) | |
| < detection limit | 5.6 ng/L | Cast | CHATEAULIN - EXTERIEURS (AULNE), CHATEAULIN - EXTERIEURS (AULNE) | |
| < detection limit | 4.1 ng/L | Dinéault | CHATEAULIN - EXTERIEURS (AULNE), CHATEAULIN - EXTERIEURS (AULNE) | |
| < detection limit | < detection limit | Dinéault | DINEAULT - KERGAOC, DINEAULT - KERGAOC | |
| < detection limit | < detection limit | Cast | CHATEAULIN - EXTERIEURS (AULNE), CHATEAULIN - EXTERIEURS (AULNE) | |
| < detection limit | < detection limit | Dinéault | CHATEAULIN - EXTERIEURS (AULNE), CHATEAULIN - EXTERIEURS (AULNE) | |
| < detection limit | < detection limit | Cast | CHATEAULIN - EXTERIEURS (AULNE), CHATEAULIN - EXTERIEURS (AULNE) | |
| < 6 ng/L · calculated | 8.9 ng/L | Dinéault | DINEAULT - LEZAFF, DINEAULT - LEZAFF | |
| < 6 ng/L · calculated | < detection limit | Dinéault | CHATEAULIN - EXTERIEURS (AULNE), CHATEAULIN - EXTERIEURS (AULNE) |
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 21 test results
| What was tested | Value | Limit | Status |
|---|---|---|---|
| Nitrate | 1.2 mg/L | ≤ 50 mg/L | within the limit |
| Nitrite | <0,01 mg/L | ≤ 0.5 mg/L | within the limit |
| Lead | 0.44 µg/L | ≤ 10 µg/L | within the limit |
| Copper | 0.015 mg(Cu)/L | ≤ 2 mg(Cu)/L | within the limit |
| Nickel | <1 µg/L | ≤ 20 µg/L | within the limit |
| Arsenic | <1 µg/L | ≤ 10 µg/L | within the limit |
| Cadmium | <0,1 µg/L | ≤ 5 µg/L | within the limit |
| Chromium | <1 µg/L | ≤ 50 µg/L | within the limit |
| Uranium | 0.45 µg/L | ≤ 30 µg/L | within the limit |
| Fluoride | 0.12 mg/L | ≤ 1.5 mg/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 | 7.7 unité pH | 6.5–9 unité pH | within the limit |
| Water hardness | 14 °f | no limit | for reference |
| Electrical conductivity | 272 µS/cm | 200–1,100 µS/cm | within the limit |
| Chloride | 18.8 mg/L | ≤ 250 mg/L | within the limit |
| Sulphate | 4.7 mg/L | ≤ 250 mg/L | within the limit |
| Sodium | 12.4 mg/L | ≤ 200 mg/L | within the limit |
| Iron | <5 µg/L | ≤ 200 µg/L | within the limit |
| Turbidity | 0.13 NFU | ≤ 2 NFU | within the limit |
Frequently asked questions
Is tap water in Dinéault safe to drink?
Yes. At the check on 3 July 2026, the tap water in Dinéault 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 Dinéault's drinking water?
The total of 20 PFAS ("forever chemicals") was last measured at 11.3 ng/L. The EU limit is 100 ng/L, so this water is at 11 % of the limit. (below the EU limit)
Does the water in Dinéault 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 2.4 ng/L stays below.
Are PFAS levels rising in Dinéault's tap water?
No. Since 25 March 2025, 10 checks have been published; on the main network the PFAS-4 sum stayed below the laboratory's detection limit every time. These history statistics use laboratory-published sums only.
How hard is the water in Dinéault?
The water hardness in Dinéault is 14 °f (soft). 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 Dinéault, so in principle the same water.
Nearby communes
The closest to Dinéault 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=29044
- License
- Licence Ouverte / Open Licence (Etalab)
- Retrieved
- 21 September 2026
- Supply networks
- CHATEAULIN - EXTERIEURS (AULNE), DINEAULT - KERGAOC, DINEAULT - LEZAFF
Water report for Dinéault
Get new PFAS results for Dinéault, 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.