PFAS in Le Monteil-au-Vicomte's tap water: under 6 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 6 ng/L, 12 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 to 2 ng/L upward. None reached that limit, so their total is below 6 ng/L rather than zero.
checked on 20 October 2025
20 PFAS (see each substance)
| PFAS substance | Value |
|---|---|
| Acide perfluoro-octanoïque (PFOA) | <0,002 µg/L |
| Acide perfluorododécanoique (PFDoDA) | <0,005 µg/L |
| Acide perfluorobutanoïque (PFBA) | <0,005 µg/L |
| Acide perfluorohexanoïque (PFHXA) | <0,002 µg/L |
| Acide perfluoro undecane sulfonique (PFUnDS) | <0,005 µg/L |
| Perfluorohexane sulfonate (PFHXS) | <0,001 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 perfluorononane sulfonique (PFNS) | <0,002 µg/L |
| Acide perfluorododécane sulfonique (PFDoDS) | <0,005 µg/L |
| Acide perfluoro undecanoïque (PFUnA) | <0,005 µg/L |
| Acide perfluoroheptane sulfonique (PFHpS) | <0,002 µg/L |
| Acide perfluoroheptanoïque (PFHPA) | <0,002 µg/L |
| Acide perfluoro tridecane sulfonique (PFTrDS) | <0,005 µg/L |
| Acide sulfonique de perfluorooctane (PFOS) | <0,001 µg/L |
| Acide perfluorodecane sulfonique (PFDS) | <0,005 µg/L |
| Acide perfluoro-nonanoïque (PFNA) | <0,002 µg/L |
| Acide perfluoro-decanoïque (PFDA) | <0,005 µg/L |
| Acide perfluoropentanoïque (PFPEA) | <0,002 µg/L |
None found. The lab sees nothing below 6 ng/L, so our 0.5 ng/L benchmark cannot be checked.
Water report for Le Monteil-au-Vicomte
Get new PFAS results for Le Monteil-au-Vicomte, 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 October 2025
- Water supplier
- MAIRIE DE LE MONTEIL AU VICOMTE
In Le Monteil-au-Vicomte, none of the 4 most closely watched PFAS (PFAS-4) was detected at the latest PFAS check on 20 October 2025. The total is below 6 ng/L, the sum of the detection limits and 12 times our 0.5 ng/L benchmark. Sum of 20 PFAS: <SEUIL µg/L, below the EU legal limit (100 ng/L). 2 checks since 13 October 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 Le Monteil-au-Vicomte
2 PFAS checks since 13 October 2025, from the published measurements. Samples from 2 communes on the same network: it's the same water, so each one applies to Le Monteil-au-Vicomte. Samples come from 2 distribution networks. The trend refers to the network “LE MONTEIL AU VICOMTE CHATAIN”.
“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 |
|---|---|---|---|---|
| < 6 ng/L · calculated | < detection limit | Le Monteil-au-Vicomte | LE MONTEIL AU VICOMTE CHATAIN | |
| < 44 ng/L · calculated | < detection limit | Saint-Marc-à-Loubaud | ST MARC A LOUBAUD |
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.
Outside a reference value: pH 6.4 unité pH on 22 June 2026 (reference 6.5–9 unité pH), Electrical conductivity 33 µS/cm on 22 June 2026 (reference 200–1,100 µS/cm). These are indicator parameters with reference values, not legal limits.
| What was tested | Value | Limit | Status |
|---|---|---|---|
| pH | 6.4 unité pH | 6.5–9 unité pH | below the reference value |
| Electrical conductivity | 33 µS/cm | 200–1,100 µS/cm | below the reference value |
See all 17 test results
| What was tested | Value | Limit | Status |
|---|---|---|---|
| Nitrate | 2.1 mg/L | ≤ 50 mg/L | within the limit |
| Nitrite | <0,01 mg/L | ≤ 0.5 mg/L | within the limit |
| Arsenic | <1,00 µg/L | ≤ 10 µg/L | within the limit |
| Cadmium | <1,00 µg/L | ≤ 5 µg/L | within the limit |
| Chromium | <1,00 µg/L | ≤ 50 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 | 6.4 unité pH | 6.5–9 unité pH | below the reference value |
| Water hardness | <1 °f | no limit | for reference |
| Electrical conductivity | 33 µS/cm | 200–1,100 µS/cm | below the reference value |
| Chloride | 3.3 mg/L | ≤ 250 mg/L | within the limit |
| Sulphate | 1.3 mg/L | ≤ 250 mg/L | within the limit |
| Sodium | 3.9 mg/L | ≤ 200 mg/L | within the limit |
| Iron | 22.3 µg/L | ≤ 200 µg/L | within the limit |
| Turbidity | 0.42 NFU | ≤ 2 NFU | within the limit |
Frequently asked questions
Is tap water in Le Monteil-au-Vicomte safe to drink?
Yes. At the check on 29 June 2026, the tap water in Le Monteil-au-Vicomte was within every limit tested. Outside a reference value: pH 6.4 unité pH on 22 June 2026 (reference 6.5–9 unité pH), Electrical conductivity 33 µS/cm on 22 June 2026 (reference 200–1,100 µS/cm). These are indicator parameters with reference values, not legal limits. “Les résultats de cette contre-analyse mettent en évidence le rétablissement de la qualité bactériologique de cette desserte. Cette eau est conforme aux exigences de qualité du Code de la Santé Publique à l'exception du paramètre température.”
How high are PFAS levels in Le Monteil-au-Vicomte'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 Le Monteil-au-Vicomte 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 6 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 Le Monteil-au-Vicomte'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 Le Monteil-au-Vicomte?
The water hardness in Le Monteil-au-Vicomte is 0 °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 12 September 2026.
Same water network
Same distribution network as Le Monteil-au-Vicomte, so in principle the same water.
Nearby communes
The closest to Le Monteil-au-Vicomte 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=23134
- License
- Licence Ouverte / Open Licence (Etalab)
- Retrieved
- 12 September 2026
- Supply networks
- LE MONTEIL AU VICOMTE CHATAIN, LE MONTEIL AU VICOMTE LARDILLER, ST MARC A LOUBAUD
This site is a data project, not an official source. If in doubt, check with your water supplier or local authority.