PFAS in Vernosc-lès-Annonay's tap water: 22 ng/L, 44x our 0.5 ng/L benchmark
Last PFAS check: · Source: Hub'eau
PFAS in drinking water
44× 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 Charnas, on the same distribution network as Vernosc-lès-Annonay (SYND ANN. SERR. UDI LIMONY). 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.
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 23 July 2026
20 PFAS (see each substance)
| PFAS substance | Value |
|---|---|
| Acide sulfonique de perfluorooctane (PFOS) | 0.012 µg/L |
| Acide perfluorohexanoïque (PFHXA) | 0.007 µg/L |
| Acide perfluoro-nonanoïque (PFNA) | 0.005 µg/L |
| Acide perfluoropentanoïque (PFPEA) | 0.005 µg/L |
| Acide perfluoro-octanoïque (PFOA) | 0.003 µg/L |
| Acide perfluorobutanoïque (PFBA) | 0.003 µg/L |
| Perfluorohexane sulfonate (PFHXS) | 0.002 µg/L |
| Acide perfluoroheptanoïque (PFHPA) | 0.002 µg/L |
| Acide perfluorodecane sulfonique (PFDS) | <0,001 µg/L |
| Acide perfluorononane sulfonique (PFNS) | <0,002 µg/L |
| Acide perfluorododécane sulfonique (PFDoDS) | <0,001 µg/L |
| Acide perfluoro tridecanoique (PFTrDA) | <0,001 µg/L |
| Acide perfluoro tridecane sulfonique (PFTrDS) | <0,005 µg/L |
| Acide perfluoro-decanoïque (PFDA) | <0,001 µg/L |
| Acide perfluoroheptane sulfonique (PFHpS) | <0,002 µg/L |
| Acide perfluoropentane sulfonique (PFPS) | <0,001 µg/L |
| Acide perfluoro undecanoïque (PFUnA) | <0,001 µg/L |
| Acide perfluoro undecane sulfonique (PFUnDS) | <0,002 µg/L |
| Acide perfluorododécanoique (PFDoDA) | <0,001 µg/L |
| Acide sulfonique de perfluorobutane (PFBS) | <0,001 µg/L |
Above our health benchmark. Here are some filter options.
- EU legal limit
- 39 ng/L sum of 20 PFAS, below the 100 ng/L limit
- Last PFAS test
- 23 July 2026
- Water supplier
- SAUR ANNONAY
In Vernosc-lès-Annonay, the 4 most closely watched PFAS (PFAS-4) add up to 22 ng/L (0.022 µg/L) at the latest PFAS check on 23 July 2026. That's 44 times our 0.5 ng/L health benchmark, and above Sweden's legal limit of 4 ng/L. Sum of 20 PFAS: 39 ng/L (0.039 µg/L), below the EU legal limit (100 ng/L). Sampled in Charnas, on the same network. 4 checks since 3 July 2025: PFAS-4 from 19 ng/L to 27 ng/L, averaging 23.33 ng/L over 12 months. No clear trend. Source: Hub'eau, Qualité de l'eau potable (Ministère de la Santé / OFB / BRGM).
Details and sources
PFAS over time in Vernosc-lès-Annonay
16 PFAS checks since 2 March 2023, from the published measurements. Samples from 2 communes on the same network: it's the same water, so each one applies to Vernosc-lès-Annonay.
“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 |
|---|---|---|---|
| 22 ng/L | 39 ng/L | Charnas | |
| 21 ng/L | 52 ng/L | Talencieux | |
| 27 ng/L | 69 ng/L | Charnas | |
| 19 ng/L | 39 ng/L | Charnas | |
| 15 ng/L · calculated | 33 ng/L | Charnas | |
| 27 ng/L · calculated | 70 ng/L | Charnas | |
| 24 ng/L · calculated | 55 ng/L | Charnas | |
| 26 ng/L · calculated | 57 ng/L | Charnas | |
| 20 ng/L · calculated | 46 ng/L | Charnas | |
| 23.5 ng/L · calculated | 60.1 ng/L | Charnas | |
| 24.9 ng/L · calculated | 55.3 ng/L | Charnas | |
| 22.4 ng/L · calculated | 59.7 ng/L | Charnas |
Show the 4 earlier checks (back to 2 March 2023)
| – | 57.1 ng/L | Charnas | |
| 19 ng/L · calculated | 54.8 ng/L | Charnas | |
| 53.5 ng/L · calculated | 127.3 ng/L | Charnas | |
| 29.7 ng/L – < 34.7 ng/L · calculated | 78.7 ng/L | Charnas |
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 16 test results
| What was tested | Value | Limit | Status |
|---|---|---|---|
| Nitrate | 9.2 mg/L | ≤ 50 mg/L | within the limit |
| Nitrite | <0,01 mg/L | ≤ 0.5 mg/L | within the limit |
| Arsenic | <2 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 |
| Fluoride | 0.3 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 | 7.6 unité pH | 6.5–9 unité pH | within the limit |
| Water hardness | 24.86 °f | no limit | for reference |
| Electrical conductivity | 522 µS/cm | 200–1,100 µS/cm | within the limit |
| Chloride | 16.7 mg/L | ≤ 250 mg/L | within the limit |
| Sulphate | 35.1 mg/L | ≤ 250 mg/L | within the limit |
| Sodium | 10.9 mg/L | ≤ 200 mg/L | within the limit |
| Turbidity | 0.15 NFU | ≤ 2 NFU | within the limit |
Frequently asked questions
Is tap water in Vernosc-lès-Annonay safe to drink?
Yes. At the check on 23 July 2026, the tap water in Vernosc-lès-Annonay 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 Vernosc-lès-Annonay's drinking water?
The total of 20 PFAS ("forever chemicals") was last measured at 39 ng/L. The EU limit is 100 ng/L, so this water is at 39 % of the limit. (below the EU limit)
Does the water in Vernosc-lès-Annonay also meet the strictest limits in Europe?
No. The four most harmful PFAS add up to 22 ng/L. That is 5.5 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).
Are PFAS levels rising in Vernosc-lès-Annonay's tap water?
No clear trend. Since 2 March 2023, 4 checks have been published; on the main network the PFAS-4 sum ranged between 19 ng/L and 27 ng/L (4 quantified values), at times below the detection limit. pfasnearme only reports a trend from a change of at least 25 % and 1 ng/L. These history statistics use laboratory-published sums only.
How hard is the water in Vernosc-lès-Annonay?
The water hardness in Vernosc-lès-Annonay is 24.9 °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 28 September 2026.
Same water network
Same distribution network as Vernosc-lès-Annonay, so in principle the same water.
Nearby communes
The closest to Vernosc-lès-Annonay 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=07337
- License
- Licence Ouverte / Open Licence (Etalab)
- Retrieved
- 28 September 2026
- Supply networks
- SYND ANN. SERR. UDI LIMONY
Water report for Vernosc-lès-Annonay
Get new PFAS results for Vernosc-lès-Annonay, 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.