PFAS in Boucieu-le-Roi'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 Boucieu-le-Roi (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 Boucieu-le-Roi, 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 Boucieu-le-Roi
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 Boucieu-le-Roi.
“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 12 test results
| What was tested | Value | Limit | Status |
|---|---|---|---|
| Nitrate | 8 mg/L | ≤ 50 mg/L | within the limit |
| Nitrite | <0,01 mg/L | ≤ 0.5 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 | 8.1 unité pH | 6.5–9 unité pH | within the limit |
| Water hardness | 20.96 °f | no limit | for reference |
| Electrical conductivity | 437 µS/cm | 200–1,100 µS/cm | within the limit |
| Chloride | 16.1 mg/L | ≤ 250 mg/L | within the limit |
| Sulphate | 28.9 mg/L | ≤ 250 mg/L | within the limit |
| Sodium | 9.8 mg/L | ≤ 200 mg/L | within the limit |
| Turbidity | <0,1 NFU | ≤ 2 NFU | within the limit |
Frequently asked questions
Is tap water in Boucieu-le-Roi safe to drink?
Yes. At the check on 26 June 2026, the tap water in Boucieu-le-Roi 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 Boucieu-le-Roi'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 Boucieu-le-Roi 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 Boucieu-le-Roi'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 Boucieu-le-Roi?
The water hardness in Boucieu-le-Roi is 21 °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 Boucieu-le-Roi, so in principle the same water.
Nearby communes
The closest to Boucieu-le-Roi 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=07040
- License
- Licence Ouverte / Open Licence (Etalab)
- Retrieved
- 12 September 2026
- Supply networks
- SI CANCE DOUX OZON
Water report for Boucieu-le-Roi
Get new PFAS results for Boucieu-le-Roi, 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.