PFAS in Bozas's tap water: 19 ng/L, 38x our 0.5 ng/L benchmark
Last PFAS check: · Source: Hub'eau
PFAS in drinking water
38× 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 Andance, on the same distribution network as Bozas (SI CANCE DOUX OZON). 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 98% of the cities we track
checked on 15 January 2026
20 PFAS (see each substance)
| PFAS substance | Value |
|---|---|
| Acide perfluorohexanoïque (PFHXA) | 0.018 µg/L |
| Acide sulfonique de perfluorooctane (PFOS) | 0.008 µg/L |
| Acide perfluoropentanoïque (PFPEA) | 0.008 µg/L |
| Acide perfluoro-nonanoïque (PFNA) | 0.005 µg/L |
| Acide perfluoro-octanoïque (PFOA) | 0.004 µg/L |
| Acide perfluorobutanoïque (PFBA) | 0.004 µg/L |
| Acide perfluoroheptanoïque (PFHPA) | 0.003 µg/L |
| Perfluorohexane sulfonate (PFHXS) | 0.002 µg/L |
| Acide perfluorododécanoique (PFDoDA) | <0,001 µg/L |
| Acide perfluoro tridecane sulfonique (PFTrDS) | <0,005 µg/L |
| Acide perfluoro undecanoïque (PFUnA) | <0,001 µg/L |
| Acide perfluorononane sulfonique (PFNS) | <0,002 µg/L |
| Acide perfluoroheptane sulfonique (PFHpS) | <0,002 µg/L |
| Acide perfluoro tridecanoique (PFTrDA) | <0,001 µg/L |
| Acide perfluorododécane sulfonique (PFDoDS) | <0,001 µg/L |
| Acide sulfonique de perfluorobutane (PFBS) | <0,001 µg/L |
| Acide perfluoropentane sulfonique (PFPS) | <0,001 µg/L |
| Acide perfluoro undecane sulfonique (PFUnDS) | <0,002 µg/L |
| Acide perfluoro-decanoïque (PFDA) | <0,001 µg/L |
| Acide perfluorodecane sulfonique (PFDS) | <0,001 µg/L |
Above our health benchmark. Here are some filter options.
- EU legal limit
- 52 ng/L sum of 20 PFAS, below the 100 ng/L limit
- Last PFAS test
- 15 January 2026
- Water supplier
- SAUR ANNONAY
In Bozas, the 4 most closely watched PFAS (PFAS-4) add up to 19 ng/L (0.019 µg/L) at the latest PFAS check on 15 January 2026. That's 38 times our 0.5 ng/L health benchmark, and above Sweden's legal limit of 4 ng/L. Sum of 20 PFAS: 52 ng/L (0.052 µg/L), below the EU legal limit (100 ng/L). Sampled in Andance, on the same network. 3 checks since 19 August 2025: PFAS-4 from 7 ng/L to 19 ng/L, averaging 11.33 ng/L over 12 months. Rising 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 Bozas
15 PFAS checks since 29 March 2023, from the published measurements. Samples from 2 communes on the same network: it's the same water, so each one applies to Bozas.
“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 |
|---|---|---|---|
| 19 ng/L | 52 ng/L | Andance | |
| 8 ng/L | 20 ng/L | Ozon | |
| 7 ng/L | 20 ng/L | Ozon | |
| 7 ng/L – < 8 ng/L · calculated | 22 ng/L | Ozon | |
| 4 ng/L – < 6 ng/L · calculated | 16 ng/L | Ozon | |
| 9 ng/L – < 10 ng/L · calculated | 26 ng/L | Ozon | |
| 7 ng/L – < 8 ng/L · calculated | 23 ng/L | Ozon | |
| 6 ng/L – < 7 ng/L · calculated | 20 ng/L | Ozon | |
| 5.7 ng/L – < 7.7 ng/L · calculated | 21.8 ng/L | Ozon | |
| 6.5 ng/L – < 7.5 ng/L · calculated | 25.3 ng/L | Ozon | |
| 12.2 ng/L – < 13.2 ng/L · calculated | 46 ng/L | Ozon | |
| – | 39.2 ng/L | Ozon |
Show the 3 earlier checks (back to 29 March 2023)
| 6.4 ng/L – < 7.4 ng/L · calculated | 30.7 ng/L | Ozon | |
| 4.8 ng/L – < 6.8 ng/L · calculated | 24.5 ng/L | Ozon | |
| 8.5 ng/L – < 18.5 ng/L · calculated | 37.6 ng/L | Ozon |
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 14 test results
| What was tested | Value | Limit | Status |
|---|---|---|---|
| Nitrate | 8.9 mg/L | ≤ 50 mg/L | within the limit |
| Nitrite | <0,01 mg/L | ≤ 0.5 mg/L | within the limit |
| Cadmium | <1 µg/L | ≤ 5 µg/L | within the limit |
| Chromium | <5 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 | 8.5 unité pH | 6.5–9 unité pH | within the limit |
| Water hardness | 20.07 °f | no limit | for reference |
| Electrical conductivity | 432 µS/cm | 200–1,100 µS/cm | within the limit |
| Chloride | 15.6 mg/L | ≤ 250 mg/L | within the limit |
| Sulphate | 27.8 mg/L | ≤ 250 mg/L | within the limit |
| Sodium | 12.6 mg/L | ≤ 200 mg/L | within the limit |
| Turbidity | <0,1 NFU | ≤ 2 NFU | within the limit |
Frequently asked questions
Is tap water in Bozas safe to drink?
Yes. At the check on 29 May 2026, the tap water in Bozas 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 Bozas's drinking water?
The total of 20 PFAS ("forever chemicals") was last measured at 52 ng/L. The EU limit is 100 ng/L, so this water is at 52 % of the limit. (below the EU limit)
Does the water in Bozas also meet the strictest limits in Europe?
No. The four most harmful PFAS add up to 19 ng/L. That is 4.8 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 Bozas's tap water?
Yes. On the main network, the PFAS-4 sum rose from 7 ng/L (19 August 2025) to 19 ng/L (15 January 2026) across 3 quantified checks. pfasnearme's benchmark is 0.5 ng/L as an annual mean. These history statistics use laboratory-published sums only.
How hard is the water in Bozas?
The water hardness in Bozas is 20.1 °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 Bozas, so in principle the same water.
Nearby communes
The closest to Bozas 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=07039
- License
- Licence Ouverte / Open Licence (Etalab)
- Retrieved
- 12 September 2026
- Supply networks
- SI CANCE DOUX OZON
Water report for Bozas
Get new PFAS results for Bozas, 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.