PFAS in Gaillac-d'Aveyron's tap water: under 6 ng/L, none of the four main PFAS detected

Last PFAS check: · Source: Hub'eau

PFAS in drinking water

No PFAS detected

Amount found in the water < 6 ng/L the 4 most harmful PFAS (PFAS-4) · the lab's detection limit 20 PFAS looked for, none found
Our health benchmark 0.5 ng/L

The lab sees nothing below 6 ng/L, 12 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 Vimenet, on the same distribution network as Gaillac-d'Aveyron (VIMENET). 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 1.5 ng/L upward. None reached that limit, so their total is below 6 ng/L rather than zero.

20 PFAS (see each substance)
PFAS substance Value
Acide perfluoro undecane sulfonique (PFUnDS) <0,0015 µg/L
Perfluorohexane sulfonate (PFHXS) <0,0015 µg/L
Acide perfluorodecane sulfonique (PFDS) <0,0015 µg/L
Acide perfluoropentane sulfonique (PFPS) <0,005 µg/L
Acide perfluoro-octanoïque (PFOA) <0,0015 µg/L
Acide perfluoroheptanoïque (PFHPA) <0,0015 µg/L
Acide perfluoro-nonanoïque (PFNA) <0,0015 µg/L
Acide perfluorobutanoïque (PFBA) <0,005 µg/L
Acide perfluoro undecanoïque (PFUnA) <0,0015 µg/L
Acide sulfonique de perfluorobutane (PFBS) <0,005 µg/L
Acide perfluoro tridecanoique (PFTrDA) <0,005 µg/L
Acide perfluoro tridecane sulfonique (PFTrDS) <0,0015 µg/L
Acide perfluorohexanoïque (PFHXA) <0,0015 µg/L
Acide perfluorononane sulfonique (PFNS) <0,0015 µg/L
Acide perfluorododécanoique (PFDoDA) <0,0015 µg/L
Acide sulfonique de perfluorooctane (PFOS) <0,0015 µg/L
Acide perfluoroheptane sulfonique (PFHpS) <0,0015 µg/L
Acide perfluorododécane sulfonique (PFDoDS) <0,0015 µg/L
Acide perfluoro-decanoïque (PFDA) <0,0015 µg/L
Acide perfluoropentanoïque (PFPEA) <0,0015 µg/L

None found. The lab sees nothing below 6 ng/L, so our 0.5 ng/L benchmark cannot be checked.

EU legal limit
none detected sum of 20 PFAS below the detection limit, limit 100 ng/L
Last PFAS test
13 April 2026
Water supplier
SIAEP HAUTE VALLEE DE L'AVEYRON

In Gaillac-d'Aveyron, none of the 4 most closely watched PFAS (PFAS-4) was detected at the latest PFAS check on 13 April 2026. The total is below 6 ng/L, the sum of the detection limits and 12 times our 0.5 ng/L benchmark. Sum of 20 PFAS: not detected, below the EU legal limit (100 ng/L). Sampled in Vimenet, on the same network. 2 checks since 20 October 2025, sum of 20 PFAS always below the detection limit (44 ng/L). Source: Hub'eau, Qualité de l'eau potable (Ministère de la Santé / OFB / BRGM).

Details and sources
Water supplier: SIAEP HAUTE VALLEE DE L'AVEYRON Latest water check: 11 June 2026 Data updated on

PFAS over time in Gaillac-d'Aveyron

2 PFAS checks since 20 October 2025, from the published measurements. Samples from 2 communes on the same network: it's the same water, so each one applies to Gaillac-d'Aveyron. Samples come from 2 distribution networks. The trend refers to the network “VIMENET”.

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

1 ng/L020 October 202513 April 2026
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
0 ng/L0 ng/LVimenetVIMENET
< 6 ng/L · calculated< 44 ng/LGaillac-d'AveyronHAMEAU DE MAZIBRAN

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 135 µS/cm on 11 June 2026 (reference 200–1,100 µS/cm). These are indicator parameters with reference values, not legal limits.

What was tested Value Limit Status
Lead 6.4 µg/L ≤ 10 µg/L within the limit
Electrical conductivity 135 µS/cm 200–1,100 µS/cm below the reference value
See all 20 test results
What was tested Value Limit Status
Nitrate 18.6 mg/L ≤ 50 mg/L within the limit
Nitrite <0,01 mg/L ≤ 0.5 mg/L within the limit
Lead 6.4 µg/L ≤ 10 µg/L within the limit
Copper 0.118 mg(Cu)/L ≤ 2 mg(Cu)/L within the limit
Nickel 3.2 µg/L ≤ 20 µg/L within the limit
Arsenic 0.65 µg/L ≤ 10 µg/L within the limit
Cadmium <0,02 µg/L ≤ 5 µg/L within the limit
Chromium 0.48 µg/L ≤ 50 µg/L within the limit
Fluoride <0,1 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 6.9 unité pH 6.5–9 unité pH within the limit
Water hardness 5.1 °f no limit for reference
Electrical conductivity 135 µS/cm 200–1,100 µS/cm below the reference value
Chloride 3.4 mg/L ≤ 250 mg/L within the limit
Sulphate 3 mg/L ≤ 250 mg/L within the limit
Sodium 6.36 mg/L ≤ 200 mg/L within the limit
Iron 1.9 µg/L ≤ 200 µg/L within the limit
Turbidity 0.23 NFU ≤ 2 NFU within the limit

Frequently asked questions

Is tap water in Gaillac-d'Aveyron safe to drink?

Yes. At the check on 11 June 2026, the tap water in Gaillac-d'Aveyron was within every limit tested. Outside a reference value: Electrical conductivity 135 µS/cm on 11 June 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 en raison de son caractère agressif, susceptible de favoriser la dissolution des métaux, notamment le plomb s'il est constitutif des branchements publics ou des réseaux privés. Dans ce cas, il est recommandé de laisser couler l'eau avant de l'utiliser à des fins alimentaires. Comme précisé lors des analyses précédentes, la configuration actuelle de ce réseau ne permet pas l'installation rapide d'un système de désinfection efficace permettant de garantir la qualité de l'eau distribuée. En conséquence, au vu des résultats des derniers prélèvements, de la qualité de l'eau brute fluctuante, et de l'impossibilité d'installer une désinfection continue de l'eau, cette eau est interdite à la consommation pour la population desservie.”

How high are PFAS levels in Gaillac-d'Aveyron's drinking water?

At the latest check the total of 20 PFAS ("forever chemicals") was reported as not detected; the laboratory did not state its reporting limit. The EU limit is 100 ng/L. (below the EU limit)

Does the water in Gaillac-d'Aveyron also meet the strictest limits in Europe?

The check cannot say. None of the four compounds was quantified, but the laboratory's detection limits add up to 6 ng/L, above Sweden's legal limit of 4 ng/L in force since 2026, so a value between the two would go unnoticed.

Are PFAS levels rising in Gaillac-d'Aveyron'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 Gaillac-d'Aveyron?

The water hardness in Gaillac-d'Aveyron is 5.1 °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 Gaillac-d'Aveyron, so in principle the same water.

Nearby communes

The closest to Gaillac-d'Aveyron 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=12107
License
Licence Ouverte / Open Licence (Etalab)
Retrieved
12 September 2026
Supply networks
HAUTE VALLEE DE L'AVEYRON, VIMENET, LISSIROU, HAMEAU DE MAZIBRAN

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