PFAS in Clapiers's tap water: 27 ng/L, 54x our 0.5 ng/L benchmark
Last PFAS check: · Source: Hub'eau
PFAS in drinking water
54× 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.
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.
One of these four, PFOA, is classified as causing cancer in humans by the WHO's cancer research agency (IARC).
More PFAS than in 99% of the cities we track
checked on 23 July 2026
20 PFAS (see each substance)
| PFAS substance | Value |
|---|---|
| Perfluorohexane sulfonate (PFHXS) | 0.011 µg/L |
| Acide perfluorohexanoïque (PFHXA) | 0.008 µg/L |
| Acide sulfonique de perfluorooctane (PFOS) | 0.008 µg/L |
| Acide perfluoro-octanoïque (PFOA) | 0.008 µg/L |
| Acide perfluoropentanoïque (PFPEA) | 0.006 µg/L |
| Acide perfluorobutanoïque (PFBA) | 0.006 µg/L |
| Acide sulfonique de perfluorobutane (PFBS) | 0.003 µg/L |
| Acide perfluoroheptanoïque (PFHPA) | 0.003 µg/L |
| Acide perfluoropentane sulfonique (PFPS) | 0.001 µg/L |
| Acide perfluoro undecane sulfonique (PFUnDS) | <0,002 µg/L |
| Acide perfluoroheptane sulfonique (PFHpS) | <0,002 µg/L |
| Acide perfluoro tridecane sulfonique (PFTrDS) | <0,005 µg/L |
| Acide perfluorodecane sulfonique (PFDS) | <0,001 µg/L |
| Acide perfluoro-nonanoïque (PFNA) | <0,001 µg/L |
| Acide perfluorododécane sulfonique (PFDoDS) | <0,001 µg/L |
| Acide perfluorododécanoique (PFDoDA) | <0,001 µg/L |
| Acide perfluoro-decanoïque (PFDA) | <0,001 µg/L |
| Acide perfluoro undecanoïque (PFUnA) | <0,001 µg/L |
| Acide perfluorononane sulfonique (PFNS) | <0,002 µg/L |
| Acide perfluoro tridecanoique (PFTrDA) | <0,001 µg/L |
Above our health benchmark. Here are some filter options.
- EU legal limit
- 54 ng/L sum of 20 PFAS, below the 100 ng/L limit
- Last PFAS test
- 23 July 2026
- Water supplier
- S.A. RUAS MICHEL GROUPE VEOLIA
In Clapiers, the 4 most closely watched PFAS (PFAS-4) add up to 27 ng/L (0.027 µg/L) at the latest PFAS check on 23 July 2026. That's 54 times our 0.5 ng/L health benchmark, and above Sweden's legal limit of 4 ng/L. Sum of 20 PFAS: 54 ng/L (0.054 µg/L), below the EU legal limit (100 ng/L). 4 checks since 10 July 2025: sum of 20 PFAS from 46 ng/L to 71 ng/L. Source: Hub'eau, Qualité de l'eau potable (Ministère de la Santé / OFB / BRGM).
Details and sources
PFAS over time in Clapiers
4 PFAS checks since 10 July 2025, from the published measurements. Samples from 2 communes on the same network: it's the same water, so each one applies to Clapiers.
“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 |
|---|---|---|---|
| 27 ng/L | 54 ng/L | Clapiers | |
| 23 ng/L – < 24 ng/L · calculated | 48 ng/L | Castelnau-le-Lez | |
| 26 ng/L – < 27 ng/L · calculated | 71 ng/L | Castelnau-le-Lez | |
| 24 ng/L – < 25 ng/L · calculated | 46 ng/L | Castelnau-le-Lez |
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 |
|---|---|---|---|
| Lead | 7 µg/L | ≤ 10 µg/L | within the limit |
See all 21 test results
| What was tested | Value | Limit | Status |
|---|---|---|---|
| Nitrate | 17.1 mg/L | ≤ 50 mg/L | within the limit |
| Nitrite | <0,01 mg/L | ≤ 0.5 mg/L | within the limit |
| Lead | 7 µg/L | ≤ 10 µg/L | within the limit |
| Copper | 0.145 mg(Cu)/L | ≤ 2 mg(Cu)/L | within the limit |
| Nickel | <5 µg/L | ≤ 20 µg/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 |
| Uranium | <10 µg/L | ≤ 30 µg/L | within the limit |
| Fluoride | 0.24 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 | 7.5 unité pH | 6.5–9 unité pH | within the limit |
| Water hardness | 52.71 °f | no limit | for reference |
| Electrical conductivity | 1,076 µS/cm | 200–1,100 µS/cm | within the limit |
| Chloride | 75 mg/L | ≤ 250 mg/L | within the limit |
| Sulphate | 95 mg/L | ≤ 250 mg/L | within the limit |
| Sodium | 39.2 mg/L | ≤ 200 mg/L | within the limit |
| Iron | <10 µg/L | ≤ 200 µg/L | within the limit |
| Turbidity | 0.13 NFU | ≤ 2 NFU | within the limit |
Frequently asked questions
Is tap water in Clapiers safe to drink?
Yes. At the check on 23 July 2026, the tap water in Clapiers 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 Clapiers's drinking water?
The total of 20 PFAS ("forever chemicals") was last measured at 54 ng/L. The EU limit is 100 ng/L, so this water is at 54 % of the limit. (below the EU limit)
Does the water in Clapiers also meet the strictest limits in Europe?
No. The four most harmful PFAS add up to 27 ng/L. That is 6.8 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 Clapiers'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 Clapiers?
The water hardness in Clapiers is 52.7 °f (hard). 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.
Same water network
Same distribution network as Clapiers, so in principle the same water.
Nearby communes
The closest to Clapiers 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=34077
- License
- Licence Ouverte / Open Licence (Etalab)
- Retrieved
- 21 September 2026
- Supply networks
- S. GC-CASTELNAU-CLAPIERS, SGC - CLAPIERS
Water report for Clapiers
Get new PFAS results for Clapiers, 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.