PFAS in Plerneuf's tap water: 3.2 ng/L, 6.4x our 0.5 ng/L benchmark
Last PFAS check: · Source: Hub'eau
PFAS in drinking water
6.4× 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 90% of the cities we track
checked on 11 March 2026
20 PFAS (see each substance)
| PFAS substance | Value |
|---|---|
| Acide sulfonique de perfluorooctane (PFOS) | 0.0032 µg/L |
| Acide perfluoropentanoïque (PFPEA) | 0.0029 µg/L |
| Acide perfluorododécane sulfonique (PFDoDS) | <0,001 µg/L |
| Perfluorohexane sulfonate (PFHXS) | <0,002 µg/L |
| Acide perfluorohexanoïque (PFHXA) | <0,005 µg/L |
| Acide perfluoroheptane sulfonique (PFHpS) | <0,002 µg/L |
| Acide perfluoropentane sulfonique (PFPS) | <0,001 µg/L |
| Acide perfluorododécanoique (PFDoDA) | <0,002 µg/L |
| Acide perfluoro undecane sulfonique (PFUnDS) | <0,001 µg/L |
| Acide perfluoro tridecane sulfonique (PFTrDS) | <0,001 µg/L |
| Acide perfluoro-decanoïque (PFDA) | <0,002 µg/L |
| Acide perfluorodecane sulfonique (PFDS) | <0,001 µg/L |
| Acide perfluoroheptanoïque (PFHPA) | <0,005 µg/L |
| Acide perfluorononane sulfonique (PFNS) | <0,001 µg/L |
| Acide sulfonique de perfluorobutane (PFBS) | <0,005 µg/L |
| Acide perfluorobutanoïque (PFBA) | <0,005 µg/L |
| Acide perfluoro tridecanoique (PFTrDA) | <0,002 µg/L |
| Acide perfluoro-nonanoïque (PFNA) | <0,001 µg/L |
| Acide perfluoro undecanoïque (PFUnA) | <0,002 µg/L |
| Acide perfluoro-octanoïque (PFOA) | <0,002 µg/L |
Above our health benchmark. Here are some filter options.
- EU legal limit
- 6.1 ng/L sum of 20 PFAS, below the 100 ng/L limit
- Last PFAS test
- 11 March 2026
- Water supplier
- SUEZ
In Plerneuf, the 4 most closely watched PFAS (PFAS-4) add up to 3.2 ng/L (0.0032 µg/L) at the latest PFAS check on 11 March 2026. That's 6.4 times our 0.5 ng/L health benchmark, but below Sweden's legal limit of 4 ng/L. Sum of 20 PFAS: 6.1 ng/L (0.0061 µg/L), below the EU legal limit (100 ng/L). 6 checks since 14 May 2025: PFAS-4 up to 199.5 ng/L, sometimes below the detection limit, averaging at least 34.9 ng/L over 12 months (non-detects as 0). Falling 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 Plerneuf
6 PFAS checks since 14 May 2025, values as published. Samples from 3 communes on the same network: it's the same water, so each one applies to Plerneuf.
| Date | PFAS-4 | Sum of 20 PFAS | Sampled at |
|---|---|---|---|
| 3.2 ng/L | 6.1 ng/L | Plerneuf | |
| 6.7 ng/L | 6.7 ng/L | Plouha | |
| < detection limit | < detection limit | Plerneuf | |
| < detection limit | < detection limit | Pléguien | |
| 199.5 ng/L | 260.6 ng/L | Plerneuf | |
| < detection limit | < detection limit | Plouha |
“<” means not detected, the figure being the detection limit. “–” means not published. Labs have only reported the PFAS-4 sum (SANDRE code 9268) since autumn 2025. How to read a PFAS result
What the latest check found
At the latest check, the water was within every limit tested.
See all 17 test results
| What was tested | Value | Limit | Status |
|---|---|---|---|
| Nitrate | 22 mg/L | ≤ 50 mg/L | within the limit |
| Nitrite | <0,01 mg/L | ≤ 0.5 mg/L | within the limit |
| Arsenic | <0,5 µg/L | ≤ 10 µg/L | within the limit |
| Cadmium | <0,025 µg/L | ≤ 5 µg/L | within the limit |
| Chromium | <0,5 µg/L | ≤ 50 µg/L | within the limit |
| Fluoride | 0.079 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 | N.M. unité pH | 6.5–9 unité pH | no verdict |
| Water hardness | 15 °f | no limit | for reference |
| Electrical conductivity | 415 µS/cm | 200–1,100 µS/cm | within the limit |
| Chloride | 60 mg/L | ≤ 250 mg/L | within the limit |
| Sulphate | 15 mg/L | ≤ 250 mg/L | within the limit |
| Sodium | 27 mg/L | ≤ 200 mg/L | within the limit |
| Iron | 5.8 µg/L | ≤ 200 µg/L | within the limit |
| Turbidity | <0,1 NFU | ≤ 2 NFU | within the limit |
Frequently asked questions
Is tap water in Plerneuf safe to drink?
Yes. At the check on 12 June 2026, the tap water in Plerneuf 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 Plerneuf's drinking water?
The total of 20 PFAS ("forever chemicals") was last measured at 6.1 ng/L. The EU limit is 100 ng/L, so this water is at 6 % of the limit. (below the EU limit)
Does the water in Plerneuf 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 3.2 ng/L stays below.
Are PFAS levels rising in Plerneuf's tap water?
No, they are falling. On the main network, the PFAS-4 sum went from 199.5 ng/L (27 May 2025) to 3.2 ng/L (11 March 2026) across 3 quantified checks.
How hard is the water in Plerneuf?
The water hardness in Plerneuf is 15 °f (medium). 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 12 September 2026.
Same water network
Same distribution network as Plerneuf, so in principle the same water.
Nearby communes
The closest to Plerneuf 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=22188
- License
- Licence Ouverte / Open Licence (Etalab)
- Retrieved
- 12 September 2026
- Supply networks
- PLERNEUF
Water report for Plerneuf
Get new PFAS results for Plerneuf, 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.