PFAS in Lantosque's tap water: under 4 ng/L, none of the four main PFAS detected
Last PFAS check: · Source: Hub'eau
PFAS in drinking water
No PFAS detected
The lab sees nothing below 4 ng/L, 8 times our benchmark of 0.5 ng/L. Water above our benchmark would pass this check unnoticed.
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.
The lab detects each of the four substances from 1 ng/L upward. None reached that limit, so their total is below 4 ng/L rather than zero.
checked on 20 May 2025
20 PFAS (see each substance)
| PFAS substance | Value |
|---|---|
| Acide perfluoropentanoïque (PFPEA) | <0,001 µg/L |
| Acide perfluoro-nonanoïque (PFNA) | <0,001 µg/L |
| Acide perfluoro tridecanoique (PFTrDA) | <0,001 µg/L |
| Acide perfluorodecane sulfonique (PFDS) | <0,001 µg/L |
| Acide perfluoro undecane sulfonique (PFUnDS) | <0,002 µg/L |
| Perfluorohexane sulfonate (PFHXS) | <0,001 µg/L |
| Acide perfluorohexanoïque (PFHXA) | <0,002 µg/L |
| Acide perfluoropentane sulfonique (PFPS) | <0,001 µg/L |
| Acide perfluoroheptanoïque (PFHPA) | <0,001 µg/L |
| Acide perfluoro-decanoïque (PFDA) | <0,001 µg/L |
| Acide perfluoro undecanoïque (PFUnA) | <0,001 µg/L |
| Acide perfluorobutanoïque (PFBA) | <0,001 µg/L |
| Acide perfluoro-octanoïque (PFOA) | <0,001 µg/L |
| Acide sulfonique de perfluorooctane (PFOS) | <0,001 µg/L |
| Acide sulfonique de perfluorobutane (PFBS) | <0,001 µg/L |
| Acide perfluoroheptane sulfonique (PFHpS) | <0,002 µg/L |
| Acide perfluorododécanoique (PFDoDA) | <0,001 µg/L |
| Acide perfluorododécane sulfonique (PFDoDS) | <0,001 µg/L |
| Acide perfluorononane sulfonique (PFNS) | <0,002 µg/L |
| Acide perfluoro tridecane sulfonique (PFTrDS) | <0,005 µg/L |
None found. The lab sees nothing below 4 ng/L, so our 0.5 ng/L benchmark cannot be checked.
Water report for Lantosque
Get new PFAS results for Lantosque, 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
- 20 May 2025
- Water supplier
- REGIE EAU D'AZUR
In Lantosque, none of the 4 most closely watched PFAS (PFAS-4) was detected at the latest PFAS check on 20 May 2025. The total is below 4 ng/L, the sum of the detection limits and 8 times our 0.5 ng/L benchmark. Sum of 20 PFAS: <0,100 µg/L, below the EU legal limit (100 ng/L). 10 checks since 8 November 2024: sum of 20 PFAS up to 2 ng/L, sometimes below the detection limit. Source: Hub'eau, Qualité de l'eau potable (Ministère de la Santé / OFB / BRGM).
Details and sources
PFAS over time in Lantosque
10 PFAS checks since 8 November 2024, from the published measurements. Samples come from 10 distribution networks. The trend refers to the network “LANTOSQUE CAMARI-ST COLOMBAN..”.
“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 | Network |
|---|---|---|---|
| < 4 ng/L · calculated | < 100 ng/L | LANTOSQUE COMBES-QUINSON ... | |
| < 4 ng/L · calculated | 1 ng/L | LANTOSQUE LODA-CROTTES | |
| < 4 ng/L · calculated | < 100 ng/L | LANTOSQUE CAMARI-ST COLOMBAN.. | |
| < 4 ng/L · calculated | < 100 ng/L | LANTOSQUE LE FARGUET | |
| < 4 ng/L · calculated | < 1 ng/L | LANTOSQUE ST GEORGES-TERRON .. | |
| < 4 ng/L · calculated | < 1 ng/L | LANTOSQUE CASTELET | |
| 1 ng/L – < 4 ng/L · calculated | 1 ng/L | LANTOSQUE LE CLOT- LE SUCQUET | |
| 2 ng/L – < 5 ng/L · calculated | 2 ng/L | LANTOSQUE PELASQUE | |
| < 4 ng/L · calculated | < 1 ng/L | LANTOSQUE BAS VILLAGE | |
| < 4 ng/L · calculated | < 1 ng/L | LANTOSQUE HAUT VILLAGE |
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 20 test results
| What was tested | Value | Limit | Status |
|---|---|---|---|
| Nitrate | 1.6 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 | <0,010 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 | N.M. µg/L | ≤ 6 µg/L | no verdict |
| Fluoride | 0.07 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 | 8 unité pH | 6.5–9 unité pH | within the limit |
| Water hardness | 20.57 °f | no limit | for reference |
| Electrical conductivity | 359 µS/cm | 200–1,100 µS/cm | within the limit |
| Chloride | 4.7 mg/L | ≤ 250 mg/L | within the limit |
| Sulphate | 20.5 mg/L | ≤ 250 mg/L | within the limit |
| Sodium | 7.7 mg/L | ≤ 200 mg/L | within the limit |
| Iron | <10 µg/L | ≤ 200 µg/L | within the limit |
| Turbidity | 0.18 NFU | ≤ 2 NFU | within the limit |
Frequently asked questions
Is tap water in Lantosque safe to drink?
Yes. At the check on 31 July 2026, the tap water in Lantosque was within every limit tested. “Eau d'alimentation présentant température excessive au niveau du point de prélèvement. Une température élevée peut favoriser la croissance bactérienne.”
How high are PFAS levels in Lantosque's drinking water?
At the latest check the total of 20 PFAS ("forever chemicals") was below the laboratory's reporting limit of 100 ng/L. The EU limit is 100 ng/L, so this water is under 100 % of the limit. (below the EU limit)
Does the water in Lantosque also meet the strictest limits in Europe?
As far as this check can tell, yes. None of the four compounds was quantified, so their total is below 4 ng/L, the sum of the laboratory's detection limits, and under Sweden's legal limit of 4 ng/L in force since 2026.
Are PFAS levels rising in Lantosque'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 Lantosque?
The water hardness in Lantosque is 20.6 °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 Lantosque 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=06074
- License
- Licence Ouverte / Open Licence (Etalab)
- Retrieved
- 21 September 2026
- Supply networks
- LANTOSQUE CAMARI-ST COLOMBAN.., LANTOSQUE LODA-CROTTES, LANTOSQUE HAUT VILLAGE, LANTOSQUE BAS VILLAGE, LANTOSQUE COMBES-QUINSON ..., LANTOSQUE CASTELET, LANTOSQUE PELASQUE, LANTOSQUE LE CLOT- LE SUCQUET, LANTOSQUE ST GEORGES-TERRON .., LANTOSQUE LE FARGUET
This site is a data project, not an official source. If in doubt, check with your water supplier or local authority.