PFAS in Saint-Denis-des-Murs'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 19 May 2025
20 PFAS (see each substance)
| PFAS substance | Value |
|---|---|
| Acide sulfonique de perfluorooctane (PFOS) | <0,001 µg/L |
| Acide sulfonique de perfluorobutane (PFBS) | <0,001 µg/L |
| Acide perfluoroheptanoïque (PFHPA) | <0,001 µg/L |
| Acide perfluorohexanoïque (PFHXA) | <0,001 µg/L |
| Acide perfluoro undecane sulfonique (PFUnDS) | <0,002 µg/L |
| Acide perfluorononane sulfonique (PFNS) | <0,001 µg/L |
| Acide perfluoro undecanoïque (PFUnA) | <0,001 µg/L |
| Acide perfluorododécanoique (PFDoDA) | <0,005 µg/L |
| Perfluorohexane sulfonate (PFHXS) | <0,001 µg/L |
| Acide perfluoroheptane sulfonique (PFHpS) | <0,001 µg/L |
| Acide perfluoro-nonanoïque (PFNA) | <0,001 µg/L |
| Acide perfluorododécane sulfonique (PFDoDS) | <0,005 µg/L |
| Acide perfluoro-decanoïque (PFDA) | <0,001 µg/L |
| Acide perfluoro tridecanoique (PFTrDA) | <0,005 µg/L |
| Acide perfluoropentane sulfonique (PFPS) | <0,001 µg/L |
| Acide perfluoropentanoïque (PFPEA) | <0,025 µg/L |
| Acide perfluoro tridecane sulfonique (PFTrDS) | <0,005 µg/L |
| Acide perfluorobutanoïque (PFBA) | <0,05 µg/L |
| Acide perfluorodecane sulfonique (PFDS) | <0,001 µg/L |
| Acide perfluoro-octanoïque (PFOA) | <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 Saint-Denis-des-Murs
Get new PFAS results for Saint-Denis-des-Murs, 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
- 19 May 2025
- Water supplier
- COMMUNE DE SAINT-DENIS-DES-MURS
In Saint-Denis-des-Murs, none of the 4 most closely watched PFAS (PFAS-4) was detected at the latest PFAS check on 19 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: <SEUIL µg/L, below the EU legal limit (100 ng/L). Source: Hub'eau, Qualité de l'eau potable (Ministère de la Santé / OFB / BRGM).
Details and sources
PFAS over time in Saint-Denis-des-Murs
A single PFAS check has been published for Saint-Denis-des-Murs so far (19 May 2025). A history will build up with the next checks; this page is refreshed weekly.
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: Coliform bacteria 1 n/(100mL) on 2 July 2026 (reference ≤ 0 mL)). These are indicator parameters with reference values, not legal limits.
| What was tested | Value | Limit | Status |
|---|---|---|---|
| Coliform bacteria | 1 n/(100mL) | ≤ 0 mL) | above the reference value |
See all 20 test results
| What was tested | Value | Limit | Status |
|---|---|---|---|
| Nitrate | 13 mg/L | ≤ 50 mg/L | within the limit |
| Nitrite | <0,01 mg/L | ≤ 0.5 mg/L | within the limit |
| Lead | <1 µg/L | ≤ 10 µg/L | within the limit |
| Copper | 0.199 mg/L | ≤ 2 mg/L | within the limit |
| Nickel | <1 µg/L | ≤ 20 µg/L | within the limit |
| Arsenic | 0.9 µg/L | ≤ 10 µg/L | within the limit |
| Cadmium | 0.14 µg/L | ≤ 5 µg/L | within the limit |
| Chromium | 0.6 µg/L | ≤ 50 µg/L | within the limit |
| Fluoride | <0,1 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) | above the reference value |
| pH | 7 unité pH | 6.5–9 unité pH | within the limit |
| Water hardness | 6.8 °f | no limit | for reference |
| Electrical conductivity | 256 µS/cm | 200–1,100 µS/cm | within the limit |
| Chloride | 6.6 mg/L | ≤ 250 mg/L | within the limit |
| Sulphate | 3.4 mg/L | ≤ 250 mg/L | within the limit |
| Sodium | 8.6 mg/L | ≤ 200 mg/L | within the limit |
| Iron | 13 µg/L | ≤ 200 µg/L | within the limit |
| Turbidity | <0,3 NFU | ≤ 2 NFU | within the limit |
Frequently asked questions
Is tap water in Saint-Denis-des-Murs safe to drink?
Yes. At the check on 2 July 2026, the tap water in Saint-Denis-des-Murs was within every limit tested. Outside a reference value: Coliform bacteria 1 n/(100mL) on 2 July 2026 (reference ≤ 0 mL)). These are indicator parameters with reference values, not legal limits. “Eau ne respectant pas les exigences de qualité bactériologique des eaux destinées à la consommation humaine. Contamination bactériologique nécessitant un renforcement de la désinfection de l'eau avant distribution.”
How high are PFAS levels in Saint-Denis-des-Murs'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 Saint-Denis-des-Murs 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.
How hard is the water in Saint-Denis-des-Murs?
The water hardness in Saint-Denis-des-Murs is 6.8 °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 21 September 2026.
Nearby communes
The closest to Saint-Denis-des-Murs 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=87142
- License
- Licence Ouverte / Open Licence (Etalab)
- Retrieved
- 21 September 2026
- Supply networks
- SAINT DENIS DES MURS
This site is a data project, not an official source. If in doubt, check with your water supplier or local authority.