PFAS in Lescouët-Gouarec's tap water: under 6 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 6 ng/L, 12 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 Mellionnec, on the same distribution network as Lescouët-Gouarec (SDC DE ST MAUDEZ PAR K. UHEL). 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 to 2 ng/L upward. None reached that limit, so their total is below 6 ng/L rather than zero.
checked on 19 May 2026
20 PFAS (see each substance)
| PFAS substance | Value |
|---|---|
| Acide perfluorobutanoïque (PFBA) | <0,005 µg/L |
| Acide perfluorodecane sulfonique (PFDS) | <0,001 µg/L |
| Acide perfluoroheptane sulfonique (PFHpS) | <0,002 µg/L |
| Acide perfluoropentanoïque (PFPEA) | <0,002 µg/L |
| Acide perfluoroheptanoïque (PFHPA) | <0,005 µg/L |
| Acide perfluoro tridecanoique (PFTrDA) | <0,002 µg/L |
| Perfluorohexane sulfonate (PFHXS) | <0,002 µg/L |
| Acide perfluoro-nonanoïque (PFNA) | <0,001 µg/L |
| Acide perfluorododécane sulfonique (PFDoDS) | <0,001 µg/L |
| Acide perfluoro undecanoïque (PFUnA) | <0,002 µg/L |
| Acide perfluorohexanoïque (PFHXA) | <0,005 µg/L |
| Acide sulfonique de perfluorobutane (PFBS) | <0,005 µg/L |
| Acide perfluoro-octanoïque (PFOA) | <0,002 µg/L |
| Acide perfluoro-decanoïque (PFDA) | <0,002 µg/L |
| Acide perfluorononane sulfonique (PFNS) | <0,001 µg/L |
| Acide perfluoropentane sulfonique (PFPS) | <0,001 µg/L |
| Acide perfluorododécanoique (PFDoDA) | <0,002 µg/L |
| Acide perfluoro undecane sulfonique (PFUnDS) | <0,001 µg/L |
| Acide perfluoro tridecane sulfonique (PFTrDS) | <0,001 µg/L |
| Acide sulfonique de perfluorooctane (PFOS) | <0,001 µg/L |
None found. The lab sees nothing below 6 ng/L, so our 0.5 ng/L benchmark cannot be checked.
Water report for Lescouët-Gouarec
Get new PFAS results for Lescouët-Gouarec, 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
- 19 May 2026
- Water supplier
- SAUR FRANCE EST - ARMOR ET VILAINE
In Lescouët-Gouarec, none of the 4 most closely watched PFAS (PFAS-4) was detected at the latest PFAS check on 19 May 2026. The total is below 6 ng/L, the sum of the detection limits and 12 times our 0.5 ng/L benchmark. Sum of 20 PFAS: <SEUIL µg/L, below the EU legal limit (100 ng/L). Sampled in Mellionnec, on the same network. 3 checks since 17 April 2025, PFAS-4 always below the detection limit. Source: Hub'eau, Qualité de l'eau potable (Ministère de la Santé / OFB / BRGM).
Details and sources
PFAS over time in Lescouët-Gouarec
3 PFAS checks since 17 April 2025, values as published. Samples from 2 communes on the same network: it's the same water, so each one applies to Lescouët-Gouarec. Samples come from 2 distribution networks. The trend refers to the network “SDC ST MAUDEZ PAR LE VOVAL”.
| Date | PFAS-4 | Sum of 20 PFAS | Sampled at | Network |
|---|---|---|---|---|
| < detection limit | < detection limit | Mellionnec | SDC DE ST MAUDEZ PAR K. UHEL | |
| < detection limit | < detection limit | Lescouët-Gouarec | SDC ST MAUDEZ PAR LE VOVAL | |
| < detection limit | < detection limit | Lescouët-Gouarec | SDC ST MAUDEZ PAR LE VOVAL |
“<” means not detected, the figure being the detection limit. “–” means not published. Labs have only reported the PFAS-4 sum (SANDRE code 9268) since autumn 2025. How to read a PFAS result
What the latest check found
At the latest check, the water was within every limit tested.
See all 17 test results
| What was tested | Value | Limit | Status |
|---|---|---|---|
| Nitrate | 13 mg/L | ≤ 50 mg/L | within the limit |
| Nitrite | <0,01 mg/L | ≤ 0.5 mg/L | within the limit |
| Arsenic | 1 µg/L | ≤ 10 µg/L | within the limit |
| Cadmium | 0.04 µg/L | ≤ 5 µg/L | within the limit |
| Chromium | <0,5 µg/L | ≤ 50 µg/L | within the limit |
| Fluoride | 0.07 mg/L | ≤ 1.5 mg/L | within the limit |
| Escherichia coli | 0 n/(100mL) | ≤ 0 mL) | within the limit |
| Enterococci | 0 n/(100mL) | ≤ 0 mL) | within the limit |
| Coliform bacteria | 0 n/(100mL) | ≤ 0 mL) | within the limit |
| pH | 8.1 unité pH | 6.5–9 unité pH | within the limit |
| Water hardness | 12 °f | no limit | for reference |
| Electrical conductivity | 283 µS/cm | 200–1,100 µS/cm | within the limit |
| Chloride | 13 mg/L | ≤ 250 mg/L | within the limit |
| Sulphate | 9.24 mg/L | ≤ 250 mg/L | within the limit |
| Sodium | 13 mg/L | ≤ 200 mg/L | within the limit |
| Iron | <2,5 µg/L | ≤ 200 µg/L | within the limit |
| Turbidity | <0,1 NFU | ≤ 2 NFU | within the limit |
Frequently asked questions
Is tap water in Lescouët-Gouarec safe to drink?
Yes. At the check on 23 July 2026, the tap water in Lescouët-Gouarec was within every limit tested. “Eau d'alimentation conforme aux limites de qualité et non conforme aux références de qualité pour la température de l'eau ainsi que la présence de germes trevivifiables. On observe la présence notable de germes revivifiables, à priori strictement accidentelle compte tenu des teneurs en désinfectant résiduel mesurées au moment de ce prélèvement. La réglementation indique que ces germes ne doivent pas varier au delà de 10 fois leur valeur habituelle. Pour éviter la prolifération de ces germes il convient, d'une manière générale, de veiller à assurer la présence de désinfectant résiduel en tout point du réseau (objectif de 0,1 mg/l de chlore libre) ainsi qu'à l'entretien des installations de distribution (nettoyage annuel des réservoirs ...).”
How high are PFAS levels in Lescouët-Gouarec'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 Lescouët-Gouarec 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 6 ng/L, above Sweden's legal limit of 4 ng/L in force since 2026, so a value between the two would go unnoticed.
Are PFAS levels rising in Lescouët-Gouarec's tap water?
Too few quantified checks to say (0 since 17 April 2025). pfasnearme adds each new publication weekly; a trend needs at least three quantified values.
How hard is the water in Lescouët-Gouarec?
The water hardness in Lescouët-Gouarec is 12 °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 21 September 2026.
Same water network
Same distribution network as Lescouët-Gouarec, so in principle the same water.
Nearby communes
The closest to Lescouët-Gouarec 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=22124
- License
- Licence Ouverte / Open Licence (Etalab)
- Retrieved
- 21 September 2026
- Supply networks
- SDC DE ST MAUDEZ PAR K. UHEL, SDC ST MAUDEZ PAR LE VOVAL
This site is a data project, not an official source. If in doubt, check with your water supplier or local authority.