PFAS in the tap water of Maubec (Isère): 13 ng/L, 26x our 0.5 ng/L benchmark
Last PFAS check: · Source: Hub'eau
PFAS in drinking water
26× 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 L'Isle-d'Abeau, on the same distribution network as Maubec (CAPI EST). 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 97% of the cities we track
checked on 17 June 2026
20 PFAS (see each substance)
| PFAS substance | Value |
|---|---|
| Acide sulfonique de perfluorooctane (PFOS) | 0.008 µg/L |
| Acide perfluorobutanoïque (PFBA) | 0.006 µg/L |
| Acide perfluorohexanoïque (PFHXA) | 0.005 µg/L |
| Acide perfluoropentanoïque (PFPEA) | 0.005 µg/L |
| Acide sulfonique de perfluorobutane (PFBS) | 0.004 µg/L |
| Acide perfluoro-octanoïque (PFOA) | 0.003 µg/L |
| Perfluorohexane sulfonate (PFHXS) | 0.002 µg/L |
| Acide perfluoroheptanoïque (PFHPA) | 0.002 µg/L |
| Acide perfluoroheptane sulfonique (PFHpS) | <0,002 µg/L |
| Acide perfluoro undecanoïque (PFUnA) | <0,001 µg/L |
| Acide perfluoro-nonanoïque (PFNA) | <0,001 µg/L |
| Acide perfluorononane sulfonique (PFNS) | <0,002 µg/L |
| Acide perfluoro tridecane sulfonique (PFTrDS) | <0,005 µg/L |
| Acide perfluoro-decanoïque (PFDA) | <0,001 µg/L |
| Acide perfluorododécane sulfonique (PFDoDS) | <0,001 µg/L |
| Acide perfluoro undecane sulfonique (PFUnDS) | <0,002 µg/L |
| Acide perfluoro tridecanoique (PFTrDA) | <0,001 µg/L |
| Acide perfluorodecane sulfonique (PFDS) | <0,001 µg/L |
| Acide perfluoropentane sulfonique (PFPS) | <0,001 µg/L |
| Acide perfluorododécanoique (PFDoDA) | <0,001 µg/L |
Above our health benchmark. Here are some filter options.
- EU legal limit
- 35 ng/L sum of 20 PFAS, below the 100 ng/L limit
- Last PFAS test
- 17 June 2026
- Water supplier
- SEMIDAO
In Maubec, the 4 most closely watched PFAS (PFAS-4) add up to 13 ng/L (0.013 µg/L) at the latest PFAS check on 17 June 2026. That's 26 times our 0.5 ng/L health benchmark, and above Sweden's legal limit of 4 ng/L. Sum of 20 PFAS: 35 ng/L (0.035 µg/L), below the EU legal limit (100 ng/L). Sampled in L'Isle-d'Abeau, on the same network. 7 checks since 13 August 2025: PFAS-4 up to 16 ng/L, sometimes below the detection limit, averaging at least 7 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 Maubec
15 PFAS checks since 29 August 2024, from the published measurements. Samples from 5 communes on the same network: it's the same water, so each one applies to Maubec. Samples come from 2 distribution networks. The trend refers to the network “MAUBEC CHEZENEUVE CRACHIER”.
“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 |
|---|---|---|---|---|
| 13 ng/L | 35 ng/L | L'Isle-d'Abeau | CAPI EST | |
| 6 ng/L | 15 ng/L | Crachier | MAUBEC CHEZENEUVE CRACHIER | |
| 14 ng/L | 40 ng/L | Maubec | CAPI EST | |
| < 4 ng/L | < 29 ng/L | Maubec | MAUBEC CHEZENEUVE CRACHIER | |
| 15 ng/L | 47 ng/L | Chèzeneuve | MAUBEC CHEZENEUVE CRACHIER | |
| 16 ng/L | 61 ng/L | Bourgoin-Jallieu | CAPI EST | |
| 13 ng/L – < 14 ng/L · calculated | 31 ng/L | Chèzeneuve | MAUBEC CHEZENEUVE CRACHIER | |
| 15 ng/L | 33 ng/L | Bourgoin-Jallieu | CAPI EST | |
| 15 ng/L – < 16 ng/L · calculated | 38 ng/L | L'Isle-d'Abeau | CAPI EST | |
| 16 ng/L · calculated | 44 ng/L | Bourgoin-Jallieu | CAPI EST | |
| 16 ng/L – < 17 ng/L · calculated | 45 ng/L | L'Isle-d'Abeau | CAPI EST | |
| 15 ng/L – < 16 ng/L · calculated | 38 ng/L | Chèzeneuve | MAUBEC CHEZENEUVE CRACHIER |
Show the 3 earlier checks (back to 29 August 2024)
| < 4 ng/L · calculated | < 1 ng/L | Maubec | MAUBEC CHEZENEUVE CRACHIER | |
| 35 ng/L – < 36 ng/L · calculated | 79 ng/L | Chèzeneuve | MAUBEC CHEZENEUVE CRACHIER | |
| 35 ng/L – < 36 ng/L · calculated | 88 ng/L | Chèzeneuve | MAUBEC CHEZENEUVE CRACHIER |
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 | 9.5 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 | 0.012 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 | 0.05 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 | 7.3 unité pH | 6.5–9 unité pH | within the limit |
| Water hardness | 28.5 °f | no limit | for reference |
| Electrical conductivity | 631 µS/cm | 200–1,100 µS/cm | within the limit |
| Chloride | 11.5 mg/L | ≤ 250 mg/L | within the limit |
| Sulphate | 23.6 mg/L | ≤ 250 mg/L | within the limit |
| Sodium | 10.2 mg/L | ≤ 200 mg/L | within the limit |
| Iron | <10 µg/L | ≤ 200 µg/L | within the limit |
| Turbidity | <0,1 NFU | ≤ 2 NFU | within the limit |
Frequently asked questions
Is tap water in Maubec safe to drink?
Yes. At the check on 30 July 2026, the tap water in Maubec 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 Maubec's drinking water?
The total of 20 PFAS ("forever chemicals") was last measured at 35 ng/L. The EU limit is 100 ng/L, so this water is at 35 % of the limit. (below the EU limit)
Does the water in Maubec also meet the strictest limits in Europe?
No. The four most harmful PFAS add up to 13 ng/L. That is 3.3 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 Maubec's tap water?
Too few quantified checks to say (2 since 29 August 2024). 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 Maubec?
The water hardness in Maubec is 28.5 °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 Maubec, so in principle the same water.
Nearby communes
The closest to Maubec 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=38223
- License
- Licence Ouverte / Open Licence (Etalab)
- Retrieved
- 21 September 2026
- Supply networks
- CAPI EST, MAUBEC CHEZENEUVE CRACHIER
Water report for Maubec
Get new PFAS results for Maubec, 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.