PFAS in the tap water of Brousse (Puy-de-Dôme): under 4 ng/L, none of the four main PFAS detected

Last PFAS check: · Source: Hub'eau

PFAS in drinking water

None of the 4 most harmful PFAS detected

Amount found in the water < 4 ng/L the 4 most harmful PFAS (PFAS-4) · the lab's detection limit 20 PFAS looked for, 2 ng/L found in total
Our health benchmark 0.5 ng/L

The lab sees nothing below 4 ng/L, 8 times our benchmark of 0.5 ng/L. Water above our benchmark would pass this check unnoticed.

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 Échandelys, on the same distribution network as Brousse (FOUGERE ECHANDELYS). 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.

The lab detects each of the four substances from 1 ng/L upward. None reached that limit, so their total is below 4 ng/L rather than zero.

20 PFAS (see each substance)
PFAS substance Value
Acide perfluoropentanoïque (PFPEA) 0.001 µg/L
Acide perfluorobutanoïque (PFBA) 0.001 µg/L
Acide perfluorododécane sulfonique (PFDoDS) <0,001 µg/L
Acide sulfonique de perfluorooctane (PFOS) <0,001 µg/L
Acide perfluoropentane sulfonique (PFPS) <0,001 µg/L
Acide perfluorononane sulfonique (PFNS) <0,002 µg/L
Acide perfluoro-nonanoïque (PFNA) <0,001 µg/L
Acide perfluoro-octanoïque (PFOA) <0,001 µg/L
Acide perfluoro undecane sulfonique (PFUnDS) <0,002 µg/L
Acide sulfonique de perfluorobutane (PFBS) <0,001 µg/L
Acide perfluoro-decanoïque (PFDA) <0,001 µg/L
Acide perfluorohexanoïque (PFHXA) <0,002 µg/L
Acide perfluoro undecanoïque (PFUnA) <0,001 µg/L
Perfluorohexane sulfonate (PFHXS) <0,001 µg/L
Acide perfluorodecane sulfonique (PFDS) <0,001 µg/L
Acide perfluoroheptane sulfonique (PFHpS) <0,002 µg/L
Acide perfluorododécanoique (PFDoDA) <0,001 µg/L
Acide perfluoro tridecanoique (PFTrDA) <0,001 µg/L
Acide perfluoroheptanoïque (PFHPA) <0,001 µg/L
Acide perfluoro tridecane sulfonique (PFTrDS) <0,005 µg/L

None found. The lab sees nothing below 4 ng/L, so our 0.5 ng/L benchmark cannot be checked.

EU legal limit
2 ng/L sum of 20 PFAS, below the 100 ng/L limit
Last PFAS test
10 April 2025
Water supplier
SIAEP DU BAS LIVRADOIS

In Brousse, none of the 4 most closely watched PFAS (PFAS-4) was detected at the latest PFAS check on 10 April 2025. The total is below 4 ng/L, the sum of the detection limits and 8 times our 0.5 ng/L benchmark. Sum of 20 PFAS: 2 ng/L (0.002 µg/L), below the EU legal limit (100 ng/L). Sampled in Échandelys, on the same network. 2 checks since 10 April 2025: sum of 20 PFAS from 1 ng/L to 2 ng/L. Source: Hub'eau, Qualité de l'eau potable (Ministère de la Santé / OFB / BRGM).

Details and sources
Water supplier: SIAEP DU BAS LIVRADOIS Latest water check: 6 January 2026 Data updated on

PFAS over time in Brousse

2 PFAS checks since 10 April 2025, from the published measurements. Samples from 2 communes on the same network: it's the same water, so each one applies to Brousse. Samples come from 2 distribution networks. The trend refers to the network “FOUGERE ECHANDELYS”.

“Calculated”: PFAS-4 worked out from the four substances in the same sample. The chart, averages and trends use lab-published sums only.

2 ng/L010 April 202510 April 2025
Laboratory-published sum of 20 PFAS per check in ng/L. Hollow dots: below the detection limit. Calculated PFAS-4 values are listed in the table.
DatePFAS-4Sum of 20 PFASSampled atNetwork
< 4 ng/L · calculated1 ng/LAuzellesAUZELLES ST JEAN
< 4 ng/L · calculated2 ng/LÉchandelysFOUGERE ECHANDELYS

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.

Microbiology: within the limit Chemistry: within the limit

Values to watch

These results are close to their legal limit, or over it.

Outside a reference value: Electrical conductivity 166 µS/cm on 6 January 2026 (reference 200–1,100 µS/cm). These are indicator parameters with reference values, not legal limits.

What was tested Value Limit Status
Electrical conductivity 166 µS/cm 200–1,100 µS/cm below the reference value
See all 18 test results
What was tested Value Limit Status
Nitrate 7.9 mg/L ≤ 50 mg/L within the limit
Nitrite <0,01 mg/L ≤ 0.5 mg/L within the limit
Lead <2 µg/L ≤ 10 µg/L within the limit
Copper 0.016 mg/L ≤ 2 mg/L within the limit
Nickel <5 µg/L ≤ 20 µg/L within the limit
Arsenic 3 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
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 7.9 unité pH 6.5–9 unité pH within the limit
Water hardness 5.17 °f no limit for reference
Electrical conductivity 166 µS/cm 200–1,100 µS/cm below the reference value
Chloride 3.4 mg/L ≤ 250 mg/L within the limit
Sulphate 3.4 mg/L ≤ 250 mg/L within the limit
Iron <10 µg/L ≤ 200 µg/L within the limit
Turbidity 0.19 NFU ≤ 2 NFU within the limit

Frequently asked questions

Is tap water in Brousse safe to drink?

Yes. At the check on 6 January 2026, the tap water in Brousse was within every limit tested. Outside a reference value: Electrical conductivity 166 µS/cm on 6 January 2026 (reference 200–1,100 µS/cm). These are indicator parameters with reference values, not legal limits. “Eau d'alimentation conforme aux limites de qualité et non conforme aux références de qualité.”

How high are PFAS levels in Brousse's drinking water?

The total of 20 PFAS ("forever chemicals") was last measured at 2 ng/L. The EU limit is 100 ng/L, so this water is at 2 % of the limit. (below the EU limit)

Does the water in Brousse also meet the strictest limits in Europe?

As far as this check can tell, yes. None of the four compounds was quantified, so their total is below 4 ng/L, the sum of the laboratory's detection limits, and under Sweden's legal limit of 4 ng/L in force since 2026.

Are PFAS levels rising in Brousse's tap water?

Calculated PFAS-4 values are listed in the table. The chart uses laboratory-published sum-of-20 results; there are too few laboratory-published PFAS-4 sums for the existing trend calculation.

How hard is the water in Brousse?

The water hardness in Brousse is 5.2 °f (soft). 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 Brousse, so in principle the same water.

Nearby communes

The closest to Brousse 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=63056
License
Licence Ouverte / Open Licence (Etalab)
Retrieved
12 September 2026
Supply networks
FOUGERE ECHANDELYS, AUZELLES ST JEAN

This site is a data project, not an official source. If in doubt, check with your water supplier or local authority.