PFAS in Léguevin's tap water: 21 ng/L, 42x our 0.5 ng/L benchmark
Last PFAS check: · Source: Hub'eau
PFAS in drinking water
42× 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 Mérenvielle, on the same distribution network as Léguevin (LEGUEVIN PRODUCTION ST CAPRAIS). 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.
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 18 June 2026
20 PFAS (see each substance)
| PFAS substance | Value |
|---|---|
| Perfluorohexane sulfonate (PFHXS) | 0.014 µg/L |
| Acide sulfonique de perfluorooctane (PFOS) | 0.007 µg/L |
| Acide perfluorohexanoïque (PFHXA) | 0.003 µg/L |
| Acide perfluoropentanoïque (PFPEA) | 0.002 µg/L |
| Acide perfluorobutanoïque (PFBA) | <0,005 µg/L |
| Acide perfluoro-decanoïque (PFDA) | <0,0015 µg/L |
| Acide perfluorododécanoique (PFDoDA) | <0,0015 µg/L |
| Acide perfluoro tridecanoique (PFTrDA) | <0,005 µg/L |
| Acide perfluoro undecanoïque (PFUnA) | <0,0015 µg/L |
| Acide perfluoro undecane sulfonique (PFUnDS) | <0,0015 µg/L |
| Acide perfluoro tridecane sulfonique (PFTrDS) | <0,0015 µg/L |
| Acide perfluoroheptane sulfonique (PFHpS) | <0,0015 µg/L |
| Acide perfluorodecane sulfonique (PFDS) | <0,0015 µg/L |
| Acide perfluoropentane sulfonique (PFPS) | <0,005 µg/L |
| Acide perfluoro-nonanoïque (PFNA) | <0,0015 µg/L |
| Acide perfluoroheptanoïque (PFHPA) | <0,0015 µg/L |
| Acide perfluorododécane sulfonique (PFDoDS) | <0,0015 µg/L |
| Acide sulfonique de perfluorobutane (PFBS) | <0,005 µg/L |
| Acide perfluoro-octanoïque (PFOA) | <0,0015 µg/L |
| Acide perfluorononane sulfonique (PFNS) | <0,0015 µg/L |
Above our health benchmark. Here are some filter options.
- EU legal limit
- 26 ng/L sum of 20 PFAS, below the 100 ng/L limit
- Last PFAS test
- 18 June 2026
- Water supplier
- SMEA RESEAU 31
In Léguevin, the 4 most closely watched PFAS (PFAS-4) add up to 21 ng/L (0.021 µg/L) at the latest PFAS check on 18 June 2026. That's 42 times our 0.5 ng/L health benchmark, and above Sweden's legal limit of 4 ng/L. Sum of 20 PFAS: 26 ng/L (0.026 µg/L), below the EU legal limit (100 ng/L). Sampled in Mérenvielle, on the same network. 5 checks since 9 February 2026: PFAS-4 up to 21 ng/L, sometimes below the detection limit, averaging at least 5.25 ng/L over 12 months (non-detects as 0). Source: Hub'eau, Qualité de l'eau potable (Ministère de la Santé / OFB / BRGM).
Details and sources
PFAS over time in Léguevin
8 PFAS checks since 20 August 2025, from the published measurements. Samples from 5 communes on the same network: it's the same water, so each one applies to Léguevin. Samples come from 2 distribution networks. The trend refers to the network “LEGUEVIN PRODUCTION ST CAPRAIS”.
“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 | Network |
|---|---|---|---|---|
| 21 ng/L | 26 ng/L | Mérenvielle | LEGUEVIN PRODUCTION ST CAPRAIS, LEGUEVIN PRODUCTION ST CAPRAIS | |
| < detection limit | < detection limit | Léguevin | LEGUEVIN PRODUCTION TOURNEFEUILLE | |
| < 6 ng/L | < 44 ng/L | Bellegarde-Sainte-Marie | LEGUEVIN PRODUCTION ST CAPRAIS, LEGUEVIN PRODUCTION ST CAPRAIS | |
| < 6 ng/L | < 44 ng/L | Léguevin | LEGUEVIN PRODUCTION ST CAPRAIS, LEGUEVIN PRODUCTION ST CAPRAIS | |
| < 6 ng/L | < 44 ng/L | Saint-Sauveur | LEGUEVIN PRODUCTION ST CAPRAIS, LEGUEVIN PRODUCTION ST CAPRAIS | |
| < 6 ng/L · calculated | < 44 ng/L | Tournefeuille | LEGUEVIN PRODUCTION TOURNEFEUILLE | |
| < 6 ng/L · calculated | < 44 ng/L | Tournefeuille | LEGUEVIN PRODUCTION TOURNEFEUILLE | |
| < 6 ng/L · calculated | < 44 ng/L | Tournefeuille | LEGUEVIN PRODUCTION TOURNEFEUILLE |
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.
See all 18 test results
| What was tested | Value | Limit | Status |
|---|---|---|---|
| Nitrate | 2.2 mg/L | ≤ 50 mg/L | within the limit |
| Nitrite | <0,03 mg/L | ≤ 0.5 mg/L | within the limit |
| Arsenic | 0.5 µg/L | ≤ 10 µg/L | within the limit |
| Cadmium | <0,01 µg/L | ≤ 5 µg/L | within the limit |
| Chromium | <0,5 µg/L | ≤ 50 µg/L | within the limit |
| Uranium | <0,1 µg/L | ≤ 30 µg/L | within the limit |
| Fluoride | <0,1 mg/L | ≤ 1.5 mg/L | within the limit |
| Escherichia coli | 0 n/(100mL) | ≤ 0 mL) | within the limit |
| Enterococci | 0 n/(100mL) | ≤ 0 mL) | within the limit |
| Coliform bacteria | 0 n/(100mL) | ≤ 0 mL) | within the limit |
| pH | 8.2 unité pH | 6.5–9 unité pH | within the limit |
| Water hardness | 9.1 °f | no limit | for reference |
| Electrical conductivity | 250 µS/cm | 200–1,100 µS/cm | within the limit |
| Chloride | 18 mg/L | ≤ 250 mg/L | within the limit |
| Sulphate | 14 mg/L | ≤ 250 mg/L | within the limit |
| Sodium | 7.7 mg/L | ≤ 200 mg/L | within the limit |
| Iron | 1 µg/L | ≤ 200 µg/L | within the limit |
| Turbidity | <0,1 NFU | ≤ 2 NFU | within the limit |
Frequently asked questions
Is tap water in Léguevin safe to drink?
Yes. At the check on 20 July 2026, the tap water in Léguevin 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 Léguevin's drinking water?
The total of 20 PFAS ("forever chemicals") was last measured at 26 ng/L. The EU limit is 100 ng/L, so this water is at 26 % of the limit. (below the EU limit)
Does the water in Léguevin also meet the strictest limits in Europe?
No. The four most harmful PFAS add up to 21 ng/L. That is 5.3 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 Léguevin's tap water?
Too few quantified checks to say (1 since 20 August 2025). pfasnearme adds each new publication weekly; a trend needs at least three quantified values. These history statistics use laboratory-published sums only.
How hard is the water in Léguevin?
The water hardness in Léguevin is 9.1 °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 21 September 2026.
Nearby communes
The closest to Léguevin 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=31291
- License
- Licence Ouverte / Open Licence (Etalab)
- Retrieved
- 21 September 2026
- Supply networks
- LEGUEVIN PRODUCTION ST CAPRAIS, LEGUEVIN PRODUCTION TOURNEFEUILLE
Water report for Léguevin
Get new PFAS results for Léguevin, 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.