PFAS in Brossainc's tap water: 18 ng/L, 36x our 0.5 ng/L benchmark
Last PFAS check: · Source: Hub'eau
PFAS in drinking water
36× 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 Bogy, on the same distribution network as Brossainc (SYND ANN. SERR. UDI TERRES CARREES). 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 7 April 2026
20 PFAS (see each substance)
| PFAS substance | Value |
|---|---|
| Acide perfluorohexanoïque (PFHXA) | 0.015 µg/L |
| Acide sulfonique de perfluorooctane (PFOS) | 0.007 µg/L |
| Acide perfluoropentanoïque (PFPEA) | 0.006 µg/L |
| Acide perfluoro-nonanoïque (PFNA) | 0.004 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) | 0.003 µg/L |
| Acide sulfonique de perfluorobutane (PFBS) | 0.001 µg/L |
| Acide perfluorododécanoique (PFDoDA) | <0,001 µg/L |
| Acide perfluoro tridecanoique (PFTrDA) | <0,001 µg/L |
| Acide perfluorononane sulfonique (PFNS) | <0,002 µg/L |
| Acide perfluoro tridecane sulfonique (PFTrDS) | <0,005 µg/L |
| Acide perfluorododécane sulfonique (PFDoDS) | <0,001 µg/L |
| Acide perfluorodecane sulfonique (PFDS) | <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 perfluoro-decanoïque (PFDA) | <0,001 µg/L |
Above our health benchmark. Here are some filter options.
- EU legal limit
- 47 ng/L sum of 20 PFAS, below the 100 ng/L limit
- Last PFAS test
- 7 April 2026
- Water supplier
- SAUR ANNONAY
In Brossainc, the 4 most closely watched PFAS (PFAS-4) add up to 18 ng/L (0.018 µg/L) at the latest PFAS check on 7 April 2026. That's 36 times our 0.5 ng/L health benchmark, and above Sweden's legal limit of 4 ng/L. Sum of 20 PFAS: 47 ng/L (0.047 µg/L), below the EU legal limit (100 ng/L). Sampled in Bogy, on the same network. 6 checks since 19 August 2025: PFAS-4 from 18 ng/L to 26 ng/L, averaging 23.5 ng/L over 12 months. 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 Brossainc
24 PFAS checks since 10 February 2023, from the published measurements. Samples from 3 communes on the same network: it's the same water, so each one applies to Brossainc.
“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 |
|---|---|---|---|
| 18 ng/L | 47 ng/L | Bogy | |
| 24 ng/L | 61 ng/L | Peaugres | |
| 24 ng/L | 60 ng/L | Peyraud | |
| 26 ng/L | 74 ng/L | Peyraud | |
| 25 ng/L | 68 ng/L | Peyraud | |
| 24 ng/L | 61 ng/L | Peyraud | |
| 19 ng/L · calculated | 54 ng/L | Peyraud | |
| 18 ng/L · calculated | 52 ng/L | Peyraud | |
| 21 ng/L · calculated | 65 ng/L | Peyraud | |
| 25 ng/L · calculated | 74 ng/L | Peyraud | |
| 25 ng/L · calculated | 70 ng/L | Peyraud | |
| 24 ng/L · calculated | 68 ng/L | Peyraud |
Show the 12 earlier checks (back to 10 February 2023)
| 23 ng/L · calculated | 65 ng/L | Peyraud | |
| 20 ng/L · calculated | 50 ng/L | Peyraud | |
| 22.7 ng/L · calculated | 69.7 ng/L | Peyraud | |
| 21.1 ng/L · calculated | 64.3 ng/L | Peyraud | |
| 33.7 ng/L · calculated | 105 ng/L | Peyraud | |
| 22.6 ng/L · calculated | 73.8 ng/L | Bogy | |
| 41.7 ng/L · calculated | 123.6 ng/L | Bogy | |
| 16.2 ng/L · calculated | 59.7 ng/L | Peyraud | |
| 14.9 ng/L · calculated | 56.6 ng/L | Bogy | |
| 32.9 ng/L · calculated | 113.6 ng/L | Peyraud | |
| 20.7 ng/L · calculated | 80.7 ng/L | Bogy | |
| 17.6 ng/L – < 22.6 ng/L · calculated | 77.3 ng/L | Peyraud |
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.
Values to watch
These results are close to their legal limit, or over it.
| What was tested | Value | Limit | Status |
|---|---|---|---|
| Nitrate | 26 mg/L | ≤ 50 mg/L | within the limit |
See all 16 test results
| What was tested | Value | Limit | Status |
|---|---|---|---|
| Nitrate | 26 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 | 0.15 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 | 8.1 unité pH | 6.5–9 unité pH | within the limit |
| Water hardness | 28.31 °f | no limit | for reference |
| Electrical conductivity | 578 µS/cm | 200–1,100 µS/cm | within the limit |
| Chloride | 25 mg/L | ≤ 250 mg/L | within the limit |
| Sulphate | 35 mg/L | ≤ 250 mg/L | within the limit |
| Sodium | 12.1 mg/L | ≤ 200 mg/L | within the limit |
| Turbidity | 0.12 NFU | ≤ 2 NFU | within the limit |
Frequently asked questions
Is tap water in Brossainc safe to drink?
Yes. At the check on 7 April 2026, the tap water in Brossainc 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 Brossainc's drinking water?
The total of 20 PFAS ("forever chemicals") was last measured at 47 ng/L. The EU limit is 100 ng/L, so this water is at 47 % of the limit. (below the EU limit)
Does the water in Brossainc also meet the strictest limits in Europe?
No. The four most harmful PFAS add up to 18 ng/L. That is 4.5 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 Brossainc's tap water?
No, they are falling. On the main network, the PFAS-4 sum went from 24 ng/L (19 August 2025) to 18 ng/L (7 April 2026) across 6 quantified checks. These history statistics use laboratory-published sums only.
How hard is the water in Brossainc?
The water hardness in Brossainc is 28.3 °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 Brossainc, so in principle the same water.
Nearby communes
The closest to Brossainc 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=07044
- License
- Licence Ouverte / Open Licence (Etalab)
- Retrieved
- 12 September 2026
- Supply networks
- SYND ANN. SERR. UDI TERRES CARREES
Water report for Brossainc
Get new PFAS results for Brossainc, 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.