PFAS in Saint-Constant-Fournoulès'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 11 September 2025
20 PFAS (see each substance)
| PFAS substance | Value |
|---|---|
| Acide perfluoroheptanoïque (PFHPA) | <0,0010 µg/L |
| Acide perfluoro-octanoïque (PFOA) | <0,0010 µg/L |
| Acide perfluoro undecanoïque (PFUnA) | <0,0050 µg/L |
| Acide sulfonique de perfluorooctane (PFOS) | <0,0010 µg/L |
| Acide perfluoropentane sulfonique (PFPS) | <0,0010 µg/L |
| Acide perfluorododécane sulfonique (PFDoDS) | <0,0050 µg/L |
| Acide perfluoro-decanoïque (PFDA) | <0,0010 µg/L |
| Acide perfluoro tridecane sulfonique (PFTrDS) | <0,0050 µg/L |
| Acide perfluorohexanoïque (PFHXA) | <0,0010 µg/L |
| Acide sulfonique de perfluorobutane (PFBS) | <0,0010 µg/L |
| Acide perfluorodecane sulfonique (PFDS) | <0,0050 µg/L |
| Perfluorohexane sulfonate (PFHXS) | <0,0010 µg/L |
| Acide perfluorododécanoique (PFDoDA) | <0,0050 µg/L |
| Acide perfluorobutanoïque (PFBA) | <0,0010 µg/L |
| Acide perfluoro undecane sulfonique (PFUnDS) | <0,0050 µg/L |
| Acide perfluoro-nonanoïque (PFNA) | <0,0010 µg/L |
| Acide perfluoropentanoïque (PFPEA) | <0,0010 µg/L |
| Acide perfluoroheptane sulfonique (PFHpS) | <0,0050 µg/L |
| Acide perfluoro tridecanoique (PFTrDA) | <0,0050 µg/L |
| Acide perfluorononane sulfonique (PFNS) | <0,0050 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-Constant-Fournoulès
Get new PFAS results for Saint-Constant-Fournoulès, 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
- 11 September 2025
- Water supplier
- SAUR
In Saint-Constant-Fournoulès, none of the 4 most closely watched PFAS (PFAS-4) was detected at the latest PFAS check on 11 September 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: <0,071 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-Constant-Fournoulès
A single PFAS check has been published for Saint-Constant-Fournoulès so far (11 September 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: Electrical conductivity 89 µS/cm on 15 July 2026 (reference 200–1,100 µS/cm). These are indicator parameters with reference values, not legal limits.
| What was tested | Value | Limit | Status |
|---|---|---|---|
| Electrical conductivity | 89 µS/cm | 200–1,100 µS/cm | below the reference value |
See all 20 test results
| What was tested | Value | Limit | Status |
|---|---|---|---|
| Nitrate | 6.6 mg/L | ≤ 50 mg/L | within the limit |
| Nitrite | <0,01 mg/L | ≤ 0.5 mg/L | within the limit |
| Lead | 0.7 µg/L | ≤ 10 µg/L | within the limit |
| Copper | 0.011 mg(Cu)/L | ≤ 2 mg(Cu)/L | within the limit |
| Nickel | <0,5 µg/L | ≤ 20 µg/L | within the limit |
| Arsenic | 1.91 µg/L | ≤ 10 µg/L | within the limit |
| Cadmium | 0.01 µg/L | ≤ 5 µg/L | within the limit |
| Chromium | <1 µg/L | ≤ 50 µg/L | within the limit |
| Fluoride | 0.02 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 | 7.3 unité pH | 6.5–9 unité pH | within the limit |
| Water hardness | 8.2 °f | no limit | for reference |
| Electrical conductivity | 89 µS/cm | 200–1,100 µS/cm | below the reference value |
| Chloride | 10.2 mg/L | ≤ 250 mg/L | within the limit |
| Sulphate | 1.8 mg/L | ≤ 250 mg/L | within the limit |
| Sodium | 6.34 mg/L | ≤ 200 mg/L | within the limit |
| Iron | 55 µg/L | ≤ 200 µg/L | within the limit |
| Turbidity | 0.34 NFU | ≤ 2 NFU | within the limit |
Frequently asked questions
Is tap water in Saint-Constant-Fournoulès safe to drink?
Yes. At the check on 15 July 2026, the tap water in Saint-Constant-Fournoulès was within every limit tested. Outside a reference value: Electrical conductivity 89 µS/cm on 15 July 2026 (reference 200–1,100 µS/cm). These are indicator parameters with reference values, not legal limits. “Résultats d'analyses conformes à la norme. Toutefois, taux de chlore é levé et taux d'aluminium excessif : eau de qualité sanitaire non satisfaisante.”
How high are PFAS levels in Saint-Constant-Fournoulès's drinking water?
At the latest check the total of 20 PFAS ("forever chemicals") was below the laboratory's reporting limit of 71 ng/L. The EU limit is 100 ng/L, so this water is under 71 % of the limit. (below the EU limit)
Does the water in Saint-Constant-Fournoulès 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-Constant-Fournoulès?
The water hardness in Saint-Constant-Fournoulès is 8.2 °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 21 September 2026.
Same water network
Same distribution network as Saint-Constant-Fournoulès, so in principle the same water.
Nearby communes
The closest to Saint-Constant-Fournoulès 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=15181
- License
- Licence Ouverte / Open Licence (Etalab)
- Retrieved
- 21 September 2026
- Supply networks
- ST-ETIENNE PAR LE TRIOULOU, ST CONSTANT - ST ETIENNE, FOURNOULES
This site is a data project, not an official source. If in doubt, check with your water supplier or local authority.