PFAS in Saint-Léger-sous-Margerie's tap water: under 8 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 8 ng/L, 16 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 Courcelles-sur-Voire, on the same distribution network as Saint-Léger-sous-Margerie (LES QUATRE VALLEES ST LEGER SOUS MARGERIE). 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 ng/L upward. None reached that limit, so their total is below 8 ng/L rather than zero.
checked on 20 May 2025
20 PFAS (see each substance)
| PFAS substance | Value |
|---|---|
| Acide perfluoropentane sulfonique (PFPS) | <0,002 µg/L |
| Acide sulfonique de perfluorobutane (PFBS) | <0,002 µg/L |
| Acide perfluoro undecane sulfonique (PFUnDS) | <0,002 µg/L |
| Acide perfluoropentanoïque (PFPEA) | <0,005 µg/L |
| Acide perfluorododécanoique (PFDoDA) | <0,002 µg/L |
| Acide perfluoro tridecanoique (PFTrDA) | <0,002 µg/L |
| Acide perfluoro-decanoïque (PFDA) | <0,002 µg/L |
| Acide perfluoro-octanoïque (PFOA) | <0,002 µg/L |
| Acide sulfonique de perfluorooctane (PFOS) | <0,002 µg/L |
| Acide perfluorododécane sulfonique (PFDoDS) | <0,002 µg/L |
| Perfluorohexane sulfonate (PFHXS) | <0,002 µg/L |
| Acide perfluorohexanoïque (PFHXA) | <0,005 µg/L |
| Acide perfluorobutanoïque (PFBA) | <0,005 µg/L |
| Acide perfluoro tridecane sulfonique (PFTrDS) | <0,005 µg/L |
| Acide perfluoroheptanoïque (PFHPA) | <0,002 µg/L |
| Acide perfluoro-nonanoïque (PFNA) | <0,002 µg/L |
| Acide perfluoro undecanoïque (PFUnA) | <0,002 µg/L |
| Acide perfluoroheptane sulfonique (PFHpS) | <0,002 µg/L |
| Acide perfluorononane sulfonique (PFNS) | <0,002 µg/L |
| Acide perfluorodecane sulfonique (PFDS) | <0,002 µg/L |
None found. The lab sees nothing below 8 ng/L, so our 0.5 ng/L benchmark cannot be checked.
Water report for Saint-Léger-sous-Margerie
Get new PFAS results for Saint-Léger-sous-Margerie, 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 May 2025
- Water supplier
- REGIE DU S.D.D.E.A.
In Saint-Léger-sous-Margerie, none of the 4 most closely watched PFAS (PFAS-4) was detected at the latest PFAS check on 20 May 2025. The total is below 8 ng/L, the sum of the detection limits and 16 times our 0.5 ng/L benchmark. Sum of 20 PFAS: <0,005 µg/L, below the EU legal limit (100 ng/L). Sampled in Courcelles-sur-Voire, on the same network. Source: Hub'eau, Qualité de l'eau potable (Ministère de la Santé / OFB / BRGM).
Details and sources
PFAS over time in Saint-Léger-sous-Margerie
A single PFAS check has been published for Saint-Léger-sous-Margerie so far (20 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 5 n/(100mL) on 20 July 2026 (reference ≤ 0 mL)). These are indicator parameters with reference values, not legal limits.
| What was tested | Value | Limit | Status |
|---|---|---|---|
| Coliform bacteria | 5 n/(100mL) | ≤ 0 mL) | above the reference value |
See all 17 test results
| What was tested | Value | Limit | Status |
|---|---|---|---|
| Nitrate | 19 mg/L | ≤ 50 mg/L | within the limit |
| Nitrite | <0,01 mg/L | ≤ 0.5 mg/L | within the limit |
| Arsenic | 0.21 µg/L | ≤ 10 µg/L | within the limit |
| Cadmium | <0,01 µg/L | ≤ 5 µg/L | within the limit |
| Chromium | <0,05 µg/L | ≤ 50 µg/L | within the limit |
| Fluoride | 0.07 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 | 5 n/(100mL) | ≤ 0 mL) | above the reference value |
| pH | 7.6 unité pH | 6.5–9 unité pH | within the limit |
| Water hardness | 33 °f | no limit | for reference |
| Electrical conductivity | 640 µS/cm | 200–1,100 µS/cm | within the limit |
| Chloride | 14 mg/L | ≤ 250 mg/L | within the limit |
| Sulphate | 44 mg/L | ≤ 250 mg/L | within the limit |
| Sodium | 6.2 mg/L | ≤ 200 mg/L | within the limit |
| Iron | 4 µg/L | ≤ 200 µg/L | within the limit |
| Turbidity | 0.4 NFU | ≤ 2 NFU | within the limit |
Frequently asked questions
Is tap water in Saint-Léger-sous-Margerie safe to drink?
Yes. At the check on 20 July 2026, the tap water in Saint-Léger-sous-Margerie was within every limit tested. Outside a reference value: Coliform bacteria 5 n/(100mL) on 20 July 2026 (reference ≤ 0 mL)). These are indicator parameters with reference values, not legal limits. “L'eau est conforme aux limites de qualité bactériologique mais non conforme aux références de qualité bactériologique définies par l'arrêté du 11 janvier 2007 par la présence de bactéries du type coliformes, indicateur d'une contamination de votre réseau. Il convien t de prendre toutes les mesures nécessaires au rétablissement de la qu alité de l'eau. La teneur en chlore libre sur le réseau de distribution doit être de l 'ordre de 0,1 mg/l.”
How high are PFAS levels in Saint-Léger-sous-Margerie's drinking water?
At the latest check the total of 20 PFAS ("forever chemicals") was below the laboratory's reporting limit of 5 ng/L. The EU limit is 100 ng/L, so this water is under 5 % of the limit. (below the EU limit)
Does the water in Saint-Léger-sous-Margerie 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 8 ng/L, above Sweden's legal limit of 4 ng/L in force since 2026, so a value between the two would go unnoticed.
How hard is the water in Saint-Léger-sous-Margerie?
The water hardness in Saint-Léger-sous-Margerie is 33 °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.
Nearby communes
The closest to Saint-Léger-sous-Margerie 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=10346
- License
- Licence Ouverte / Open Licence (Etalab)
- Retrieved
- 21 September 2026
- Supply networks
- LES QUATRE VALLEES ST LEGER SOUS MARGERIE
This site is a data project, not an official source. If in doubt, check with your water supplier or local authority.