PFAS in Fressines'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 Aigondigné, on the same distribution network as Fressines (LAMBON FRESSINES). 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) <0,001 µg/L
Acide perfluoro-octanoïque (PFOA) <0,001 µg/L
Acide perfluoropentanoïque (PFPEA) <0,025 µg/L
Acide perfluoroheptanoïque (PFHPA) <0,001 µg/L
Acide perfluoro-nonanoïque (PFNA) <0,001 µg/L
Acide sulfonique de perfluorobutane (PFBS) <0,001 µg/L
Acide perfluorododécanoique (PFDoDA) <0,001 µg/L
Acide perfluoro undecane sulfonique (PFUnDS) <0,001 µg/L
Acide perfluoropentane sulfonique (PFPS) <0,001 µg/L
Acide perfluoro tridecanoique (PFTrDA) <0,001 µg/L
Acide perfluoro undecanoïque (PFUnA) <0,001 µg/L
Acide perfluorononane sulfonique (PFNS) <0,001 µg/L
Acide perfluorodecane sulfonique (PFDS) <0,001 µg/L
Acide perfluoro-decanoïque (PFDA) <0,001 µg/L
Perfluorohexane sulfonate (PFHXS) <0,001 µg/L
Acide sulfonique de perfluorooctane (PFOS) <0,001 µg/L
Acide perfluorohexanoïque (PFHXA) <0,001 µg/L
Acide perfluorobutanoïque (PFBA) <0,05 µg/L
Acide perfluoroheptane sulfonique (PFHpS) <0,001 µg/L
Acide perfluorododécane sulfonique (PFDoDS) <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
8 April 2026
Water supplier
SYNDICAT DES EAUX DU SERTAD

In Fressines, none of the 4 most closely watched PFAS (PFAS-4) was detected at the latest PFAS check on 8 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: <SEUIL µg/L, below the EU legal limit (100 ng/L). Sampled in Aigondigné, on the same network. 3 checks since 11 September 2025: sum of 20 PFAS up to 2.9 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: SYNDICAT DES EAUX DU SERTAD Latest water check: 25 June 2026 Data updated on

PFAS over time in Fressines

3 PFAS checks since 11 September 2025, from the published measurements. Samples from 2 communes on the same network: it's the same water, so each one applies to Fressines.

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

2.9 ng/L011 September 20258 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 · calculated< detection limitAigondigné
< 4 ng/L · calculated< detection limitSainte-Néomaye
< 4 ng/L · calculated2.9 ng/LSainte-Néomaye

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 31 mg/L ≤ 50 mg/L within the limit
See all 17 test results
What was tested Value Limit Status
Nitrate 31 mg/L ≤ 50 mg/L within the limit
Nitrite <0,01 mg/L ≤ 0.5 mg/L within the limit
Lead <0,50 µg/L ≤ 10 µg/L within the limit
Copper 0.0691 mg/L ≤ 2 mg/L within the limit
Nickel 0.92 µg/L ≤ 20 µg/L within the limit
Cadmium <0,01 µg/L ≤ 5 µg/L within the limit
Chromium <0,5 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 7.9 unité pH 6.5–9 unité pH within the limit
Water hardness 23.2 °f no limit for reference
Electrical conductivity 552 µS/cm 200–1,100 µS/cm within the limit
Chloride 27 mg/L ≤ 250 mg/L within the limit
Sulphate 57 mg/L ≤ 250 mg/L within the limit
Iron 5.4 µg/L ≤ 200 µg/L within the limit
Turbidity <0,2 NFU ≤ 2 NFU within the limit

Frequently asked questions

Is tap water in Fressines safe to drink?

Yes. At the check on 25 June 2026, the tap water in Fressines was within every limit tested. “Eau d'alimentation conforme aux limites de qualité et non conforme aux références de qualité : la température dépasse la référence de qua lité.”

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

The water hardness in Fressines is 23.2 °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 Fressines, so in principle the same water.

Nearby communes

The closest to Fressines 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=79129
License
Licence Ouverte / Open Licence (Etalab)
Retrieved
12 September 2026
Supply networks
LAMBON FRESSINES

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