PFAS in Melle's tap water: under 14 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 14 ng/L, 28 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 Marcillé, on the same distribution network as Melle (MARCILLE). 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 2 to 5 ng/L upward. None reached that limit, so their total is below 14 ng/L rather than zero.
checked on 2 July 2026
20 PFAS (see each substance)
| PFAS substance | Value |
|---|---|
| Acide perfluorodecane sulfonique (PFDS) | <0,005 µg/L |
| Acide perfluoro undecanoïque (PFUnA) | <0,005 µg/L |
| Acide perfluoro undecane sulfonique (PFUnDS) | <0,005 µg/L |
| Acide perfluoro tridecanoique (PFTrDA) | <0,005 µg/L |
| Acide sulfonique de perfluorobutane (PFBS) | <0,005 µg/L |
| Acide perfluoropentane sulfonique (PFPS) | <0,002 µg/L |
| Acide perfluoro-octanoïque (PFOA) | <0,002 µg/L |
| Acide perfluoro-nonanoïque (PFNA) | <0,005 µg/L |
| Acide perfluorohexanoïque (PFHXA) | <0,005 µg/L |
| Acide perfluoropentanoïque (PFPEA) | <0,005 µg/L |
| Acide perfluoroheptanoïque (PFHPA) | <0,005 µg/L |
| Acide sulfonique de perfluorooctane (PFOS) | <0,005 µg/L |
| Acide perfluoroheptane sulfonique (PFHpS) | <0,005 µg/L |
| Acide perfluoro tridecane sulfonique (PFTrDS) | <0,005 µg/L |
| Acide perfluorododécanoique (PFDoDA) | <0,005 µg/L |
| Acide perfluorobutanoïque (PFBA) | <0,05 µg/L |
| Acide perfluoro-decanoïque (PFDA) | <0,005 µg/L |
| Acide perfluorononane sulfonique (PFNS) | <0,005 µg/L |
| Perfluorohexane sulfonate (PFHXS) | <0,002 µg/L |
| Acide perfluorododécane sulfonique (PFDoDS) | <0,01 µg/L |
None found. The lab sees nothing below 14 ng/L, so our 0.5 ng/L benchmark cannot be checked.
Water report for Melle
Get new PFAS results for Melle, 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
- 2 July 2026
- Water supplier
- SMAEP 4B
In Melle, none of the 4 most closely watched PFAS (PFAS-4) was detected at the latest PFAS check on 2 July 2026. The total is below 14 ng/L, the sum of the detection limits and 28 times our 0.5 ng/L benchmark. Sum of 20 PFAS: <SEUIL µg/L, below the EU legal limit (100 ng/L). Sampled in Marcillé, on the same network. 12 checks since 20 May 2025, sum of 20 PFAS always 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 Melle
12 PFAS checks since 20 May 2025, from the published measurements. Samples from 9 communes on the same network: it's the same water, so each one applies to Melle. Samples come from 5 distribution networks. The trend refers to the network “LEZAY”.
“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 |
|---|---|---|---|---|
| < 14 ng/L · calculated | < detection limit | Marcillé | MARCILLE | |
| < 14 ng/L · calculated | < detection limit | Fontivillié | MARCILLE | |
| < 14 ng/L · calculated | < detection limit | Juillé | BELLE ET BOUTONNE | |
| < 4 ng/L · calculated | < detection limit | Sainte-Néomaye | SERTAD DISTRIBUTION | |
| < 4 ng/L · calculated | < detection limit | Vanzay | LEZAY | |
| < 4 ng/L · calculated | < detection limit | Lezay | LEZAY | |
| < 4 ng/L · calculated | < detection limit | Aigondigné | SERTAD DISTRIBUTION | |
| < 4 ng/L · calculated | < detection limit | Lezay | LEZAY | |
| < 4 ng/L · calculated | < detection limit | Périgné | BELLE ET BOUTONNE | |
| < 4 ng/L · calculated | < detection limit | Melle | MELLE ST-MARTIN | |
| < 4 ng/L · calculated | < detection limit | Sainte-Néomaye | SERTAD DISTRIBUTION | |
| < 4 ng/L · calculated | < detection limit | Marcillé | MARCILLE |
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.
Values to watch
These results are close to their legal limit, or over it.
| What was tested | Value | Limit | Status |
|---|---|---|---|
| Nitrate | 25 mg/L | ≤ 50 mg/L | within the limit |
| Fluoride | 0.91 mg/L | ≤ 1.5 mg/L | within the limit |
See all 20 test results
| What was tested | Value | Limit | Status |
|---|---|---|---|
| Nitrate | 25 mg/L | ≤ 50 mg/L | within the limit |
| Nitrite | <0,01 mg/L | ≤ 0.5 mg/L | within the limit |
| Lead | 0.45 µg/L | ≤ 10 µg/L | within the limit |
| Copper | 0.509 mg(Cu)/L | ≤ 2 mg(Cu)/L | within the limit |
| Nickel | 1.5 µg/L | ≤ 20 µg/L | within the limit |
| Arsenic | 0.5 µg/L | ≤ 10 µg/L | within the limit |
| Cadmium | 0.03 µg/L | ≤ 5 µg/L | within the limit |
| Chromium | <0,5 µg/L | ≤ 50 µg/L | within the limit |
| Fluoride | 0.91 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 | ILLISIBL n/(100mL) | ≤ 0 mL) | no verdict |
| pH | 7.5 unité pH | 6.5–9 unité pH | within the limit |
| Water hardness | 11.2 °f | no limit | for reference |
| Electrical conductivity | 483 µS/cm | 200–1,100 µS/cm | within the limit |
| Chloride | 22 mg/L | ≤ 250 mg/L | within the limit |
| Sulphate | 13 mg/L | ≤ 250 mg/L | within the limit |
| Sodium | 11 mg/L | ≤ 200 mg/L | within the limit |
| Iron | <1 µg/L | ≤ 200 µg/L | within the limit |
| Turbidity | <0,2 NFU | ≤ 2 NFU | within the limit |
Frequently asked questions
Is tap water in Melle safe to drink?
Yes. At the check on 30 July 2026, the tap water in Melle was within every limit tested. “Eau d'alimentation conforme aux limites de qualité et non conforme aux références de qualité.La température dépasse la référence de quali té. La référence de qualité fixée pour les bactéries coliformes, les GT 22 et GT 36 ne sont pas satisfaites.Leurs prèsences peuvent provenir d'un défaut de traitement, de travaux sur le réseau, de souillures du réservoir ou d'un temps de contact insuffisant avec le désinfectant.Ce dépassement ne présente pas à lui seul un risque pour la santé.Il a été demandé à l'exploitant de réaliser des purges du réseau et/ou d'adapter le traitement. Une analyse de contrôle a été programmée.”
How high are PFAS levels in Melle's drinking water?
The total of 20 PFAS ("forever chemicals") was last measured at –. The EU limit is 100 ng/L, so this water is at – of the limit. (below the EU limit)
Does the water in Melle also meet the strictest limits in Europe?
The check cannot say. None of the four compounds was quantified, but the laboratory's detection limits add up to 14 ng/L, above Sweden's legal limit of 4 ng/L in force since 2026, so a value between the two would go unnoticed.
Are PFAS levels rising in Melle'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 Melle?
The water hardness in Melle is 11.2 °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 28 September 2026.
Same water network
Same distribution network as Melle, so in principle the same water.
Nearby communes
The closest to Melle 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=79174
- License
- Licence Ouverte / Open Licence (Etalab)
- Retrieved
- 28 September 2026
- Supply networks
- MELLE ST-MARTIN, LEZAY, MARCILLE, SERTAD DISTRIBUTION, BELLE ET BOUTONNE
This site is a data project, not an official source. If in doubt, check with your water supplier or local authority.