PFAS in the tap water of Beauvoir (Manche): 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 Saint-James, on the same distribution network as Beauvoir (LA GAUBERDIERE). 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 tridecane sulfonique (PFTrDS) <0,005 µg/L
Acide perfluoroheptane sulfonique (PFHpS) <0,0010 µg/L
Acide perfluorohexanoïque (PFHXA) <0,0010 µg/L
Acide perfluoropentane sulfonique (PFPS) <0,0010 µg/L
Acide perfluoro-octanoïque (PFOA) <0,001 µg/L
Acide perfluorobutanoïque (PFBA) <0,0010 µg/L
Acide perfluoro undecanoïque (PFUnA) <0,001 µg/L
Acide perfluorododécanoique (PFDoDA) <0,001 µg/L
Acide perfluorododécane sulfonique (PFDoDS) <0,002 µg/L
Acide perfluoro tridecanoique (PFTrDA) <0,002 µg/L
Acide perfluoroheptanoïque (PFHPA) <0,0010 µg/L
Acide sulfonique de perfluorobutane (PFBS) <0,0010 µg/L
Acide perfluoro-decanoïque (PFDA) <0,001 µg/L
Acide perfluorononane sulfonique (PFNS) <0,001 µg/L
Acide perfluorodecane sulfonique (PFDS) <0,001 µg/L
Acide perfluoro undecane sulfonique (PFUnDS) <0,001 µg/L
Perfluorohexane sulfonate (PFHXS) <0,0010 µg/L
Acide perfluoropentanoïque (PFPEA) <0,0010 µg/L
Acide perfluoro-nonanoïque (PFNA) <0,0010 µg/L
Acide sulfonique de perfluorooctane (PFOS) <0,001 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
16 June 2026
Water supplier
SDEAU REGIE SUD

In Beauvoir, none of the 4 most closely watched PFAS (PFAS-4) was detected at the latest PFAS check on 16 June 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 Saint-James, on the same network. 5 checks since 9 January 2025: sum of 20 PFAS up to 6.9 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: SDEAU REGIE SUD Latest water check: 16 June 2026 Data updated on

PFAS over time in Beauvoir

5 PFAS checks since 9 January 2025, from the published measurements. Samples from 3 communes on the same network: it's the same water, so each one applies to Beauvoir.

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

6.9 ng/L09 January 202516 June 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 · calculated< detection limitSaint-James
< 4 ng/L · calculated< detection limitBeauvoir
< 4 ng/L · calculated6.9 ng/LSaint-Aubin-de-Terregatte
< 4 ng/L · calculated< detection limitSaint-Aubin-de-Terregatte
< 6 ng/L · calculated< detection limitSaint-Aubin-de-Terregatte

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 27.4 mg/L ≤ 50 mg/L within the limit
See all 18 test results
What was tested Value Limit Status
Nitrate 27.4 mg/L ≤ 50 mg/L within the limit
Nitrite <0,01 mg/L ≤ 0.5 mg/L within the limit
Arsenic <0,25 µg/L ≤ 10 µg/L within the limit
Cadmium <0,025 µg/L ≤ 5 µg/L within the limit
Chromium <1,0 µg/L ≤ 50 µg/L within the limit
Uranium 0.13 µg/L ≤ 30 µg/L within the limit
Fluoride 0.084 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 7.6 unité pH 6.5–9 unité pH within the limit
Water hardness 16.4 °f no limit for reference
Electrical conductivity 514 µS/cm 200–1,100 µS/cm within the limit
Chloride 82 mg/L ≤ 250 mg/L within the limit
Sulphate 20 mg/L ≤ 250 mg/L within the limit
Sodium 29.9 mg/L ≤ 200 mg/L within the limit
Iron 95.2 µg/L ≤ 200 µg/L within the limit
Turbidity 0.4 NFU ≤ 2 NFU within the limit

Frequently asked questions

Is tap water in Beauvoir safe to drink?

Yes. At the check on 16 June 2026, the tap water in Beauvoir was within every limit tested. “L’eau produite était, au moment du prélèvement, conforme aux exigences bactériologiques et aux limites de qualité physico-chimiques. Toutefois, le calcul de l'équilibre calco-carbonique selon la méthode Legrand et Poirier indiquait que l'eau était agressive.”

How high are PFAS levels in Beauvoir'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 Beauvoir 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 Beauvoir'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 Beauvoir?

The water hardness in Beauvoir is 16.4 °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 21 September 2026.

Same water network

Same distribution network as Beauvoir, so in principle the same water.

Nearby communes

The closest to Beauvoir 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=50042
License
Licence Ouverte / Open Licence (Etalab)
Retrieved
21 September 2026
Supply networks
LA GAUBERDIERE

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