PFAS in Prades-le-Lez's tap water: under 4 ng/L, none of the four main PFAS detected
Last PFAS check: · Source: Hub'eau
PFAS in drinking water
None of the 4 most harmful 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.
Sample taken in Le Triadou, on the same distribution network as Prades-le-Lez (MMM-PRADES-RESTINCLIERES). 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.
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 30 July 2026
20 PFAS (see each substance)
| PFAS substance | Value |
|---|---|
| Acide perfluoropentanoïque (PFPEA) | 0.001 µg/L |
| Acide perfluorododécanoique (PFDoDA) | <0,001 µg/L |
| Acide perfluorodecane sulfonique (PFDS) | <0,001 µg/L |
| Acide perfluorohexanoïque (PFHXA) | <0,002 µg/L |
| Acide sulfonique de perfluorobutane (PFBS) | <0,001 µg/L |
| Acide perfluoro undecanoïque (PFUnA) | <0,001 µg/L |
| Acide sulfonique de perfluorooctane (PFOS) | <0,001 µg/L |
| Acide perfluoro undecane sulfonique (PFUnDS) | <0,002 µg/L |
| Acide perfluorononane sulfonique (PFNS) | <0,002 µg/L |
| Acide perfluorobutanoïque (PFBA) | <0,002 µg/L |
| Perfluorohexane sulfonate (PFHXS) | <0,001 µg/L |
| Acide perfluoropentane sulfonique (PFPS) | <0,001 µg/L |
| Acide perfluoro tridecanoique (PFTrDA) | <0,001 µg/L |
| Acide perfluoroheptane sulfonique (PFHpS) | <0,002 µg/L |
| Acide perfluoro tridecane sulfonique (PFTrDS) | <0,005 µg/L |
| Acide perfluoroheptanoïque (PFHPA) | <0,001 µg/L |
| Acide perfluorododécane sulfonique (PFDoDS) | <0,001 µg/L |
| Acide perfluoro-octanoïque (PFOA) | <0,001 µg/L |
| Acide perfluoro-nonanoïque (PFNA) | <0,001 µg/L |
| Acide perfluoro-decanoïque (PFDA) | <0,001 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 Prades-le-Lez
Get new PFAS results for Prades-le-Lez, with a short explanation. At most one update a week, only when there's something new.
- EU legal limit
- 1 ng/L sum of 20 PFAS, below the 100 ng/L limit
- Last PFAS test
- 30 July 2026
- Water supplier
- REGIE DES EAUX MONTPELLIER 3M
In Prades-le-Lez, none of the 4 most closely watched PFAS (PFAS-4) was detected at the latest PFAS check on 30 July 2026. 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: 1 ng/L (0.001 µg/L), below the EU legal limit (100 ng/L). Sampled in Le Triadou, on the same network. 6 checks since 3 June 2026, PFAS-4 always below the detection limit (4 ng/L). Source: Hub'eau, Qualité de l'eau potable (Ministère de la Santé / OFB / BRGM).
Details and sources
PFAS over time in Prades-le-Lez
12 PFAS checks since 16 July 2025, from the published measurements. Samples from 4 communes on the same network: it's the same water, so each one applies to Prades-le-Lez. Samples come from 2 distribution networks. The trend refers to the network “MMM-MONTP-JUVIGNAC-PRADES-GRABELS-MONTFERRIER”.
“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 |
|---|---|---|---|---|
| < 4 ng/L | 1 ng/L | Le Triadou | MMM-PRADES-RESTINCLIERES | |
| < 4 ng/L | < 29 ng/L | Lattes | MMM-MONTP-JUVIGNAC-PRADES-GRABELS-MONTFERRIER | |
| < 4 ng/L | 2 ng/L | Montpellier | MMM-MONTP-JUVIGNAC-PRADES-GRABELS-MONTFERRIER | |
| < 4 ng/L | < 29 ng/L | Montpellier | MMM-MONTP-JUVIGNAC-PRADES-GRABELS-MONTFERRIER | |
| < 4 ng/L | 1 ng/L | Montpellier | MMM-MONTP-JUVIGNAC-PRADES-GRABELS-MONTFERRIER | |
| < 4 ng/L | < 29 ng/L | Juvignac | MMM-MONTP-JUVIGNAC-PRADES-GRABELS-MONTFERRIER | |
| < 4 ng/L · calculated | 4 ng/L | Montpellier | MMM-MONTP-JUVIGNAC-PRADES-GRABELS-MONTFERRIER | |
| < 4 ng/L · calculated | < 29 ng/L | Montpellier | MMM-MONTP-JUVIGNAC-PRADES-GRABELS-MONTFERRIER | |
| < 4 ng/L · calculated | < 29 ng/L | Montpellier | MMM-MONTP-JUVIGNAC-PRADES-GRABELS-MONTFERRIER | |
| < 4 ng/L · calculated | < 29 ng/L | Montpellier | MMM-MONTP-JUVIGNAC-PRADES-GRABELS-MONTFERRIER | |
| < 4 ng/L · calculated | < 29 ng/L | Montpellier | MMM-MONTP-JUVIGNAC-PRADES-GRABELS-MONTFERRIER | |
| < 4 ng/L · calculated | 3 ng/L | Montpellier | MMM-MONTP-JUVIGNAC-PRADES-GRABELS-MONTFERRIER |
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 | 3.9 mg/L | ≤ 50 mg/L | within the limit |
| Nitrite | <0,01 mg/L | ≤ 0.5 mg/L | within the limit |
| Lead | 4 µg/L | ≤ 10 µg/L | within the limit |
| Copper | 0.106 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 |
| Fluoride | 0.13 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 | 31.83 °f | no limit | for reference |
| Electrical conductivity | 776 µS/cm | 200–1,100 µS/cm | within the limit |
| Chloride | 50 mg/L | ≤ 250 mg/L | within the limit |
| Sulphate | 20.4 mg/L | ≤ 250 mg/L | within the limit |
| Sodium | 33.4 mg/L | ≤ 200 mg/L | within the limit |
| Iron | – | ≤ 200 µg/L | no verdict |
| Turbidity | 0.15 NFU | ≤ 2 NFU | within the limit |
Frequently asked questions
Is tap water in Prades-le-Lez safe to drink?
Yes. At the check on 30 July 2026, the tap water in Prades-le-Lez 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 Prades-le-Lez's drinking water?
The total of 20 PFAS ("forever chemicals") was last measured at 1 ng/L. The EU limit is 100 ng/L, so this water is at 1 % of the limit. (below the EU limit)
Does the water in Prades-le-Lez 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 Prades-le-Lez's tap water?
No. Since 16 July 2025, 6 checks have been published and the PFAS-4 sum stayed below the laboratory's detection limit (4 ng/L) every time. These history statistics use laboratory-published sums only.
How hard is the water in Prades-le-Lez?
The water hardness in Prades-le-Lez is 31.8 °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 Prades-le-Lez, so in principle the same water.
Nearby communes
The closest to Prades-le-Lez 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=34217
- License
- Licence Ouverte / Open Licence (Etalab)
- Retrieved
- 21 September 2026
- Supply networks
- MMM-MONTP-JUVIGNAC-PRADES-GRABELS-MONTFERRIER, MMM-PRADES-RESTINCLIERES
This site is a data project, not an official source. If in doubt, check with your water supplier or local authority.