PFAS in Le Mesnil-Villeman'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

Amount found in the water < 4 ng/L the 4 most harmful PFAS (PFAS-4) · the lab's detection limit 20 PFAS looked for, none found
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 Sainte-Cécile, on the same distribution network as Le Mesnil-Villeman (VILLEDIEU OUEST). 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 perfluoro-decanoïque (PFDA) <0,0010 µg/L
Acide perfluoro tridecane sulfonique (PFTrDS) <0,0050 µg/L
Acide perfluoro undecane sulfonique (PFUnDS) <0,0010 µg/L
Acide perfluoropentanoïque (PFPEA) <0,0010 µg/L
Acide perfluoropentane sulfonique (PFPS) <0,0010 µg/L
Perfluorohexane sulfonate (PFHXS) <0,0010 µg/L
Acide perfluorododécanoique (PFDoDA) <0,0010 µg/L
Acide sulfonique de perfluorobutane (PFBS) <0,0010 µg/L
Acide perfluorobutanoïque (PFBA) <0,0010 µg/L
Acide perfluorododécane sulfonique (PFDoDS) <0,0020 µg/L
Acide perfluoroheptanoïque (PFHPA) <0,0010 µg/L
Acide perfluorodecane sulfonique (PFDS) <0,0010 µg/L
Acide perfluoroheptane sulfonique (PFHpS) <0,0010 µg/L
Acide sulfonique de perfluorooctane (PFOS) <0,0010 µg/L
Acide perfluorononane sulfonique (PFNS) <0,0010 µg/L
Acide perfluoro tridecanoique (PFTrDA) <0,0020 µg/L
Acide perfluoro-octanoïque (PFOA) <0,0010 µg/L
Acide perfluorohexanoïque (PFHXA) <0,0010 µg/L
Acide perfluoro undecanoïque (PFUnA) <0,0010 µg/L
Acide perfluoro-nonanoïque (PFNA) <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
none detected sum of 20 PFAS below the detection limit, limit 100 ng/L
Last PFAS test
12 January 2026
Water supplier
VEOLIA EAU - SUD MANCHE

In Le Mesnil-Villeman, none of the 4 most closely watched PFAS (PFAS-4) was detected at the latest PFAS check on 12 January 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: <SEUIL µg/L, below the EU legal limit (100 ng/L). Sampled in Sainte-Cécile, on the same network. 3 checks since 16 June 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
Water supplier: VEOLIA EAU - SUD MANCHE Latest water check: 12 January 2026 Data updated on

PFAS over time in Le Mesnil-Villeman

3 PFAS checks since 16 June 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.

DatePFAS-4Sum of 20 PFASSampled at
< 4 ng/L · calculated< detection limitSainte-Cécile
< 4 ng/L · calculated< detection limitSainte-Cécile
< 4 ng/L · calculated< detection limitSainte-Cécile

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
See all 14 test results
What was tested Value Limit Status
Nitrate 10.7 mg/L ≤ 50 mg/L within the limit
Nitrite <0,01 mg/L ≤ 0.5 mg/L within the limit
Cadmium <0,025 µg/L ≤ 5 µg/L within the limit
Chromium <1 µg/L ≤ 50 µg/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 7.7 unité pH 6.5–9 unité pH within the limit
Water hardness 11.7 °f no limit for reference
Electrical conductivity 327 µS/cm 200–1,100 µS/cm within the limit
Chloride 45 mg/L ≤ 250 mg/L within the limit
Sulphate 7 mg/L ≤ 250 mg/L within the limit
Iron 1.6 µg/L ≤ 200 µg/L within the limit
Turbidity <0,10 NFU ≤ 2 NFU within the limit

Frequently asked questions

Is tap water in Le Mesnil-Villeman safe to drink?

Yes. At the check on 12 January 2026, the tap water in Le Mesnil-Villeman was within every limit tested. “Eau d'alimentation conforme aux limites et références de qualité pour l'ensemble des paramètres mesurés.”

How high are PFAS levels in Le Mesnil-Villeman'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 Mesnil-Villeman 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 Le Mesnil-Villeman'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 Mesnil-Villeman?

The water hardness in Le Mesnil-Villeman is 11.7 °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 Mesnil-Villeman, so in principle the same water.

Nearby communes

The closest to Le Mesnil-Villeman 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=50326
License
Licence Ouverte / Open Licence (Etalab)
Retrieved
12 September 2026
Supply networks
VILLEDIEU OUEST

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