PFAS in Ajac's tap water: none of the four main PFAS detected
Last PFAS check: · Source: Hub'eau
PFAS in drinking water
not precise enough to compare
Some of the four PFAS were too small for the lab to measure. The check cannot say whether this water is above or below our benchmark of 0.5 ng/L.
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 Tréziers, on the same distribution network as Ajac (AJAC). 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.
Substances below the detection limit count as 0, so the real total may be higher.
checked on 1 July 2025
20 PFAS (see each substance)
| PFAS substance | Value |
|---|---|
| Acide perfluoroheptane sulfonique (PFHpS) | <0,010 µg/L |
| Acide perfluoropentane sulfonique (PFPS) | <0,010 µg/L |
| Acide perfluoroheptanoïque (PFHPA) | <0,002 µg/L |
| Acide perfluoro tridecanoique (PFTrDA) | <0,002 µg/L |
| Acide perfluoro undecane sulfonique (PFUnDS) | <0,002 µg/L |
| Acide perfluoro undecanoïque (PFUnA) | <0,010 µg/L |
| Acide sulfonique de perfluorooctane (PFOS) | TRACES |
| Acide perfluoro tridecane sulfonique (PFTrDS) | <0,010 µg/L |
| Acide perfluoro-nonanoïque (PFNA) | <0,010 µg/L |
| Acide perfluoro-octanoïque (PFOA) | <0,002 µg/L |
| Acide perfluorononane sulfonique (PFNS) | <0,002 µg/L |
| Acide perfluorohexanoïque (PFHXA) | <0,002 µg/L |
| Acide perfluorobutanoïque (PFBA) | <0,002 µg/L |
| Acide perfluoropentanoïque (PFPEA) | <0,002 µg/L |
| Acide perfluoro-decanoïque (PFDA) | <0,002 µg/L |
| Acide sulfonique de perfluorobutane (PFBS) | <0,002 µg/L |
| Acide perfluorododécane sulfonique (PFDoDS) | <0,002 µg/L |
| Acide perfluorodecane sulfonique (PFDS) | <0,002 µg/L |
| Acide perfluorododécanoique (PFDoDA) | <0,002 µg/L |
| Perfluorohexane sulfonate (PFHXS) | <0,010 µg/L |
The test cannot say if the water is above or below our 0.5 ng/L benchmark.
Water report for Ajac
Get new PFAS results for Ajac, with a short explanation. At most one update a week, only when there's something new.
- EU legal limit
- none detected sum of 20 PFAS below the detection limit, limit 100 ng/L
- Last PFAS test
- 1 July 2025
- Water supplier
- VEOLIA EAU-SADE EXPLOITATION LROUSS
In Ajac, none of the 4 most closely watched PFAS (PFAS-4) was found in a measurable amount at the latest PFAS check on 1 July 2025. That's below the detection limit, so there's no verdict against our 0.5 ng/L benchmark. Sum of 20 PFAS: <0,002 µg/L, below the EU legal limit (100 ng/L). Sampled in Tréziers, on the same network. Source: Hub'eau, Qualité de l'eau potable (Ministère de la Santé / OFB / BRGM).
Details and sources
PFAS over time in Ajac
A single PFAS check has been published for Ajac so far (1 July 2025). A history will build up with the next checks; this page is refreshed weekly.
What the latest check found
At the latest check, the water was within every limit tested.
See all 16 test results
| What was tested | Value | Limit | Status |
|---|---|---|---|
| Nitrate | 9.2 mg/L | ≤ 50 mg/L | within the limit |
| Nitrite | <0,01 mg/L | ≤ 0.5 mg/L | within the limit |
| Lead | 3 µg/L | ≤ 10 µg/L | within the limit |
| Copper | 0.084 mg(Cu)/L | ≤ 2 mg(Cu)/L | within the limit |
| Nickel | <5 µg/L | ≤ 20 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 | 7.7 unité pH | 6.5–9 unité pH | within the limit |
| Water hardness | 21.31 °f | no limit | for reference |
| Electrical conductivity | 422 µS/cm | 200–1,100 µS/cm | within the limit |
| Chloride | 5.6 mg/L | ≤ 250 mg/L | within the limit |
| Sulphate | 18 mg/L | ≤ 250 mg/L | within the limit |
| Turbidity | 0.3 NFU | ≤ 2 NFU | within the limit |
Frequently asked questions
Is tap water in Ajac safe to drink?
Yes. At the check on 27 July 2026, the tap water in Ajac was within every limit tested. “Eau d'alimentation conforme aux limites de qualité et non conforme aux références de qualité.”
How high are PFAS levels in Ajac's drinking water?
At the latest check the total of 20 PFAS ("forever chemicals") was below the laboratory's reporting limit of 2 ng/L. The EU limit is 100 ng/L, so this water is under 2 % of the limit. (below the EU limit)
Does the water in Ajac also meet the strictest limits in Europe?
The check cannot say. None of the four compounds was quantified, and the source does not publish detection limits fine enough to compare their total with Sweden's legal limit of 4 ng/L in force since 2026.
How hard is the water in Ajac?
The water hardness in Ajac is 21.3 °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 21 September 2026.
Nearby communes
The closest to Ajac 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=11003
- License
- Licence Ouverte / Open Licence (Etalab)
- Retrieved
- 21 September 2026
- Supply networks
- AJAC
This site is a data project, not an official source. If in doubt, check with your water supplier or local authority.