PFAS in Lissieu's tap water: 29 ng/L, 58x our 0.5 ng/L benchmark
Last PFAS check: · Source: Hub'eau
PFAS in drinking water
58× 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 Dommartin, on the same distribution network as Lissieu (ML VAL D'AZERGUES). 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.
One of these four, PFOA, is classified as causing cancer in humans by the WHO's cancer research agency (IARC).
More PFAS than in 100% of the cities we track
checked on 7 May 2026
20 PFAS (see each substance)
| PFAS substance | Value |
|---|---|
| Acide sulfonique de perfluorooctane (PFOS) | 0.015 µg/L |
| Acide perfluoropentanoïque (PFPEA) | 0.008 µg/L |
| Acide perfluoro-octanoïque (PFOA) | 0.007 µg/L |
| Acide perfluorohexanoïque (PFHXA) | 0.007 µg/L |
| Acide perfluorobutanoïque (PFBA) | 0.007 µg/L |
| Acide perfluoroheptanoïque (PFHPA) | 0.004 µg/L |
| Perfluorohexane sulfonate (PFHXS) | 0.004 µg/L |
| Acide perfluoro-nonanoïque (PFNA) | 0.003 µg/L |
| Acide sulfonique de perfluorobutane (PFBS) | 0.002 µg/L |
| Acide perfluoroheptane sulfonique (PFHpS) | <0,002 µg/L |
| Acide perfluoropentane sulfonique (PFPS) | <0,001 µg/L |
| Acide perfluoro tridecanoique (PFTrDA) | <0,001 µg/L |
| Acide perfluoro tridecane sulfonique (PFTrDS) | <0,005 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 perfluorododécane sulfonique (PFDoDS) | <0,001 µg/L |
| Acide perfluoro undecane sulfonique (PFUnDS) | <0,002 µg/L |
| Acide perfluorodecane sulfonique (PFDS) | <0,001 µg/L |
| Acide perfluorononane sulfonique (PFNS) | <0,002 µg/L |
Above our health benchmark. Here are some filter options.
- EU legal limit
- 57 ng/L sum of 20 PFAS, below the 100 ng/L limit
- Last PFAS test
- 7 May 2026
- Water supplier
- EAU DU GRAND LYON
In Lissieu, the 4 most closely watched PFAS (PFAS-4) add up to 29 ng/L (0.029 µg/L) at the latest PFAS check on 7 May 2026. That's 58 times our 0.5 ng/L health benchmark, and above Sweden's legal limit of 4 ng/L. Sum of 20 PFAS: 57 ng/L (0.057 µg/L), below the EU legal limit (100 ng/L). Sampled in Dommartin, on the same network. 4 checks since 19 January 2026: PFAS-4 from 29 ng/L to 34 ng/L. Source: Hub'eau, Qualité de l'eau potable (Ministère de la Santé / OFB / BRGM).
Details and sources
PFAS over time in Lissieu
11 PFAS checks since 25 April 2023, from the published measurements. Samples from 5 communes on the same network: it's the same water, so each one applies to Lissieu. Samples come from 2 distribution networks. The trend refers to the network “METROPOLE LYON VAL D'AZERGUES”.
“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 |
|---|---|---|---|---|
| 29 ng/L | 57 ng/L | Dommartin | ML VAL D'AZERGUES | |
| 31 ng/L | 60 ng/L | La Tour-de-Salvagny | ML VAL D'AZERGUES | |
| 33 ng/L | 67 ng/L | Lissieu | ML VAL D'AZERGUES | |
| 34 ng/L | 65 ng/L | Fleurieux-sur-l'Arbresle | ML VAL D'AZERGUES | |
| 40 ng/L · calculated | 79 ng/L | Anse | METROPOLE LYON VAL D'AZERGUES | |
| 42 ng/L · calculated | 80 ng/L | Anse | METROPOLE LYON VAL D'AZERGUES | |
| 31.5 ng/L · calculated | 61.1 ng/L | Anse | METROPOLE LYON VAL D'AZERGUES | |
| 36.1 ng/L · calculated | 72.8 ng/L | Anse | METROPOLE LYON VAL D'AZERGUES | |
| 37.7 ng/L · calculated | 67.7 ng/L | Anse | METROPOLE LYON VAL D'AZERGUES | |
| 25.1 ng/L · calculated | 51.3 ng/L | Anse | METROPOLE LYON VAL D'AZERGUES | |
| 31.3 ng/L · calculated | 54.4 ng/L | Anse | METROPOLE LYON VAL D'AZERGUES |
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 21 test results
| What was tested | Value | Limit | Status |
|---|---|---|---|
| Nitrate | 11.4 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 | 0.024 mg(Cu)/L | ≤ 2 mg(Cu)/L | within the limit |
| Nickel | <5 µg/L | ≤ 20 µg/L | within the limit |
| Arsenic | 2.7 µg/L | ≤ 10 µg/L | within the limit |
| Cadmium | <1 µg/L | ≤ 5 µg/L | within the limit |
| Chromium | N.M. µg/L | ≤ 6 µg/L | no verdict |
| Uranium | <10 µg/L | ≤ 30 µg/L | within the limit |
| Fluoride | 0.12 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 | 7.4 unité pH | 6.5–9 unité pH | within the limit |
| Water hardness | 26.65 °f | no limit | for reference |
| Electrical conductivity | 574 µS/cm | 200–1,100 µS/cm | within the limit |
| Chloride | 40.3 mg/L | ≤ 250 mg/L | within the limit |
| Sulphate | 33.2 mg/L | ≤ 250 mg/L | within the limit |
| Sodium | 16.8 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 Lissieu safe to drink?
Yes. At the check on 23 July 2026, the tap water in Lissieu was within every limit tested. “Eau d'alimentation conforme aux exigences de qualité en vigueur pour l'ensemble des paramètres mesurés.”
How high are PFAS levels in Lissieu's drinking water?
The total of 20 PFAS ("forever chemicals") was last measured at 57 ng/L. The EU limit is 100 ng/L, so this water is at 57 % of the limit. (below the EU limit)
Does the water in Lissieu also meet the strictest limits in Europe?
No. The four most harmful PFAS add up to 29 ng/L. That is 7.3 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 Lissieu's tap water?
Too few quantified checks to say (0 since 25 April 2023). 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 Lissieu?
The water hardness in Lissieu is 26.7 °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.
Same water network
Same distribution network as Lissieu, so in principle the same water.
Nearby communes
The closest to Lissieu 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=69117
- License
- Licence Ouverte / Open Licence (Etalab)
- Retrieved
- 21 September 2026
- Supply networks
- METROPOLE LYON VAL D'AZERGUES, ML VAL D'AZERGUES
Water report for Lissieu
Get new PFAS results for Lissieu, 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.