PFAS in Avessac's tap water: 1.7 ng/L, 3.4x our 0.5 ng/L benchmark
Last PFAS check: · Source: Hub'eau
PFAS in drinking water
3.4× 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 Redon, on the same distribution network as Avessac (SECTEUR OUEST-GUEMENE PENFAO). 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 22 October 2025
20 PFAS (see each substance)
| PFAS substance | Value |
|---|---|
| Acide perfluoro-octanoïque (PFOA) | 0.0017 µg/L |
| Acide perfluorohexanoïque (PFHXA) | 0.0017 µg/L |
| Acide sulfonique de perfluorobutane (PFBS) | 0.0005 µg/L |
| Acide perfluorododécane sulfonique (PFDoDS) | <0,00040 µg/L |
| Acide perfluoroheptanoïque (PFHPA) | <0,0010 µg/L |
| Acide perfluoropentanoïque (PFPEA) | <0,0050 µg/L |
| Acide perfluoro undecane sulfonique (PFUnDS) | <0,00040 µg/L |
| Acide perfluoro tridecanoique (PFTrDA) | <0,0010 µg/L |
| Perfluorohexane sulfonate (PFHXS) | <0,00040 µg/L |
| Acide perfluorobutanoïque (PFBA) | <0,0050 µg/L |
| Acide perfluorononane sulfonique (PFNS) | <0,00040 µg/L |
| Acide perfluorodecane sulfonique (PFDS) | <0,00040 µg/L |
| Acide perfluoro tridecane sulfonique (PFTrDS) | <0,00040 µg/L |
| Acide sulfonique de perfluorooctane (PFOS) | <0,0010 µg/L |
| Acide perfluoroheptane sulfonique (PFHpS) | <0,00040 µg/L |
| Acide perfluoro-nonanoïque (PFNA) | <0,0010 µg/L |
| Acide perfluoro undecanoïque (PFUnA) | <0,0010 µg/L |
| Acide perfluoropentane sulfonique (PFPS) | <0,00040 µg/L |
| Acide perfluorododécanoique (PFDoDA) | <0,0010 µg/L |
| Acide perfluoro-decanoïque (PFDA) | <0,0010 µg/L |
Above our health benchmark. Here are some filter options.
- EU legal limit
- 3.89 ng/L sum of 20 PFAS, below the 100 ng/L limit
- Last PFAS test
- 22 October 2025
- Water supplier
- SAUR
In Avessac, the 4 most closely watched PFAS (PFAS-4) add up to 1.7 ng/L (0.0017 µg/L) at the latest PFAS check on 22 October 2025. That's 3.4 times our 0.5 ng/L health benchmark, but below Sweden's legal limit of 4 ng/L. Sum of 20 PFAS: 3.89 ng/L (0.0039 µg/L), below the EU legal limit (100 ng/L). Sampled in Redon, on the same network. 2 checks since 14 May 2025: PFAS-4 from 1.7 ng/L to 2.27 ng/L. Source: Hub'eau, Qualité de l'eau potable (Ministère de la Santé / OFB / BRGM).
Details and sources
PFAS over time in Avessac
2 PFAS checks since 14 May 2025, values as published.
| Date | PFAS-4 | Sum of 20 PFAS | Sampled at |
|---|---|---|---|
| 1.7 ng/L | 3.89 ng/L | Redon | |
| 2.27 ng/L | 4.06 ng/L | Redon |
“<” 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
The authorities have not published an overall verdict for this water.
See all 17 test results
| What was tested | Value | Limit | Status |
|---|---|---|---|
| Nitrate | 21 mg/L | ≤ 50 mg/L | within the limit |
| Nitrite | <0,010 mg/L | ≤ 0.5 mg/L | within the limit |
| Lead | <0,2 µg/L | ≤ 10 µg/L | within the limit |
| Copper | 0.0004 mg(Cu)/L | ≤ 2 mg(Cu)/L | within the limit |
| Nickel | 2.4 µg/L | ≤ 20 µg/L | within the limit |
| Cadmium | 0.016 µg/L | ≤ 5 µg/L | within the limit |
| Chromium | 0.8 µg/L | ≤ 50 µg/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 | 8.2 unité pH | 6.5–9 unité pH | within the limit |
| Water hardness | 15 °f | no limit | for reference |
| Electrical conductivity | 492 µS/cm | 200–1,100 µS/cm | within the limit |
| Chloride | 41.9 mg/L | ≤ 250 mg/L | within the limit |
| Sulphate | 40.1 mg/L | ≤ 250 mg/L | within the limit |
| Iron | 1 µg/L | ≤ 200 µg/L | within the limit |
| Turbidity | 0.38 NFU | ≤ 2 NFU | within the limit |
Frequently asked questions
Is tap water in Avessac safe to drink?
All the values shown here (5 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 Avessac's drinking water?
The total of 20 PFAS ("forever chemicals") was last measured at 3.89 ng/L. The EU limit is 100 ng/L, so this water is at 4 % of the limit. (below the EU limit)
Does the water in Avessac 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 1.7 ng/L stays below.
Are PFAS levels rising in Avessac's tap water?
Too few quantified checks to say (2 since 14 May 2025). pfasnearme adds each new publication weekly; a trend needs at least three quantified values.
How hard is the water in Avessac?
The water hardness in Avessac 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 Avessac, so in principle the same water.
Nearby communes
The closest to Avessac 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=44007
- License
- Licence Ouverte / Open Licence (Etalab)
- Retrieved
- 12 September 2026
- Supply networks
- SECTEUR OUEST-GUEMENE PENFAO
Water report for Avessac
Get new PFAS results for Avessac, 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.