PFAS in Méhoudin's tap water: under 4 ng/L, none of the four main PFAS detected

Last PFAS check: · Source: Hub'eau

PFAS in drinking water

None of the 4 most harmful PFAS detected

Amount found in the water < 4 ng/L the 4 most harmful PFAS (PFAS-4) · the lab's detection limit 20 PFAS looked for, 1.3 ng/L found in total
Our health benchmark 0.5 ng/L

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.

Sample taken in Rives d'Andaine, on the same distribution network as Méhoudin (ZD PONT DE COUTERNE). 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 1 ng/L upward. None reached that limit, so their total is below 4 ng/L rather than zero.

20 PFAS (see each substance)
PFAS substance Value
Acide perfluorobutanoïque (PFBA) 0.0013 µg/L
Acide perfluorohexanoïque (PFHXA) <0,0010 µg/L
Acide perfluorononane sulfonique (PFNS) <0,0010 µg/L
Acide perfluorododécanoique (PFDoDA) <0,0010 µg/L
Acide perfluoroheptanoïque (PFHPA) <0,0010 µg/L
Acide perfluoro undecanoïque (PFUnA) <0,0010 µg/L
Acide perfluoro-decanoïque (PFDA) <0,001 µg/L
Acide perfluoro-octanoïque (PFOA) <0,0010 µg/L
Acide perfluoro tridecane sulfonique (PFTrDS) <0,005 µg/L
Acide perfluoro-nonanoïque (PFNA) <0,0010 µg/L
Acide perfluoroheptane sulfonique (PFHpS) <0,0010 µg/L
Acide perfluoropentane sulfonique (PFPS) <0,0010 µg/L
Acide sulfonique de perfluorobutane (PFBS) <0,0010 µg/L
Acide perfluorododécane sulfonique (PFDoDS) <0,0020 µg/L
Acide sulfonique de perfluorooctane (PFOS) <0,0010 µg/L
Acide perfluoro tridecanoique (PFTrDA) <0,0020 µg/L
Acide perfluoro undecane sulfonique (PFUnDS) <0,001 µg/L
Acide perfluorodecane sulfonique (PFDS) <0,0010 µg/L
Perfluorohexane sulfonate (PFHXS) <0,0010 µg/L
Acide perfluoropentanoïque (PFPEA) <0,0010 µg/L

None found. The lab sees nothing below 4 ng/L, so our 0.5 ng/L benchmark cannot be checked.

EU legal limit
1.3 ng/L sum of 20 PFAS, below the 100 ng/L limit
Last PFAS test
20 April 2026
Water supplier
STGS SARL

In Méhoudin, none of the 4 most closely watched PFAS (PFAS-4) was detected at the latest PFAS check on 20 April 2026. 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: 1.3 ng/L (0.0013 µg/L), below the EU legal limit (100 ng/L). Sampled in Rives d'Andaine, on the same network. 3 checks since 27 March 2025: sum of 20 PFAS up to 2.1 ng/L, sometimes below the detection limit. Source: Hub'eau, Qualité de l'eau potable (Ministère de la Santé / OFB / BRGM).

Details and sources
Water supplier: STGS SARL Latest water check: 20 April 2026 Data updated on

PFAS over time in Méhoudin

3 PFAS checks since 27 March 2025, from the published measurements.

“Calculated”: PFAS-4 worked out from the four substances in the same sample. The chart, averages and trends use lab-published sums only.

2.1 ng/L027 March 202520 April 2026
Laboratory-published sum of 20 PFAS per check in ng/L. Hollow dots: below the detection limit. Calculated PFAS-4 values are listed in the table.
DatePFAS-4Sum of 20 PFASSampled at
< 4 ng/L · calculated1.3 ng/LRives d'Andaine
< 4 ng/L · calculated< detection limitRives d'Andaine
2.1 ng/L – < 6.1 ng/L · calculated2.1 ng/LRives d'Andaine

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.

Microbiology: within the limit Chemistry: within the limit

Values to watch

These results are close to their legal limit, or over it.

What was tested Value Limit Status
Nitrate 42 mg/L ≤ 50 mg/L within the limit
See all 12 test results
What was tested Value Limit Status
Nitrate 42 mg/L ≤ 50 mg/L within the limit
Nitrite <0,010 mg/L ≤ 0.5 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 8.1 unité pH 6.5–9 unité pH within the limit
Water hardness 15.4 °f no limit for reference
Electrical conductivity 403 µS/cm 200–1,100 µS/cm within the limit
Chloride 39 mg/L ≤ 250 mg/L within the limit
Sulphate 25 mg/L ≤ 250 mg/L within the limit
Iron 52.4 µg/L ≤ 200 µg/L within the limit
Turbidity <0,20 NFU ≤ 2 NFU within the limit

Frequently asked questions

Is tap water in Méhoudin safe to drink?

Yes. At the check on 20 April 2026, the tap water in Méhoudin was within every limit tested. “Eau d'alimentation conforme aux limites et références de qualité bactériologique en vigueur pour les paramètres recherchés. Eau d'alimentation conforme aux limites de qualité physico-chimique en vigueur pour les paramètres recherchés. Eau d'alimentation ne satisfaisant pas aux références de qualité en raison du Carbone Organique Total qui est supérieur à la valeur limite maximale fixée à 2 mg/L. L'exploitant a été informé et a mis en place des actions visant à reduire la teneur de ce paramètre.”

How high are PFAS levels in Méhoudin's drinking water?

The total of 20 PFAS ("forever chemicals") was last measured at 1.3 ng/L. The EU limit is 100 ng/L, so this water is at 1 % of the limit. (below the EU limit)

Does the water in Méhoudin 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.

Are PFAS levels rising in Méhoudin'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 Méhoudin?

The water hardness in Méhoudin is 15.4 °f (medium). 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 Méhoudin, so in principle the same water.

Nearby communes

The closest to Méhoudin 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=61257
License
Licence Ouverte / Open Licence (Etalab)
Retrieved
12 September 2026
Supply networks
ZD PONT DE COUTERNE

This site is a data project, not an official source. If in doubt, check with your water supplier or local authority.