PFAS in Plouguiel'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

Amount found in the water < 6 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 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 Camlez, on the same distribution network as Plouguiel (SYNDICAT DU TREGOR). 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.

20 PFAS (see each substance)
PFAS substance Value
Acide perfluoro-decanoïque (PFDA) <0,002 µg/L
Acide perfluoropentane sulfonique (PFPS) <0,001 µg/L
Acide perfluoroheptane sulfonique (PFHpS) <0,002 µg/L
Acide perfluorobutanoïque (PFBA) <0,005 µg/L
Acide perfluoropentanoïque (PFPEA) <0,002 µg/L
Acide sulfonique de perfluorooctane (PFOS) <0,001 µg/L
Acide perfluoro undecane sulfonique (PFUnDS) <0,001 µg/L
Acide perfluorododécane sulfonique (PFDoDS) <0,001 µg/L
Acide perfluoro tridecane sulfonique (PFTrDS) <0,001 µg/L
Acide perfluorononane sulfonique (PFNS) <0,001 µg/L
Acide sulfonique de perfluorobutane (PFBS) <0,005 µg/L
Acide perfluoro undecanoïque (PFUnA) <0,002 µg/L
Acide perfluorodecane sulfonique (PFDS) <0,001 µg/L
Acide perfluoro-octanoïque (PFOA) <0,002 µg/L
Acide perfluoro-nonanoïque (PFNA) <0,001 µg/L
Acide perfluorododécanoique (PFDoDA) <0,002 µg/L
Acide perfluorohexanoïque (PFHXA) <0,005 µg/L
Acide perfluoroheptanoïque (PFHPA) <0,005 µg/L
Perfluorohexane sulfonate (PFHXS) <0,002 µg/L
Acide perfluoro tridecanoique (PFTrDA) <0,002 µg/L

None found. The lab sees nothing below 6 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
5 February 2026
Water supplier
CA LANNION-TRÉGOR COMMUNAUTÉ

In Plouguiel, none of the 4 most closely watched PFAS (PFAS-4) was detected at the latest PFAS check on 5 February 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 Camlez, on the same network. 5 checks since 4 February 2025: PFAS-4 up to 2.4 ng/L, sometimes below the detection limit, averaging at least 1.05 ng/L over 12 months (non-detects as 0). Source: Hub'eau, Qualité de l'eau potable (Ministère de la Santé / OFB / BRGM).

Details and sources
Water supplier: CA LANNION-TRÉGOR COMMUNAUTÉ Latest water check: 24 June 2026 Data updated on

PFAS over time in Plouguiel

5 PFAS checks since 4 February 2025, values as published. Samples from 2 communes on the same network: it's the same water, so each one applies to Plouguiel.

0.5 ng/L2.4 ng/L04 February 20255 February 2026
PFAS-4 sum per check in ng/L. Dashed line: pfasnearme's 0.5 ng/L benchmark. Hollow dots: below the detection limit.
DatePFAS-4Sum of 20 PFASSampled at
< detection limit< detection limitCamlez
2.4 ng/L2.4 ng/LPlouguiel
1.8 ng/L1.8 ng/LPlouguiel
< detection limit< detection limitPlouguiel
< detection limit< detection limitPlouguiel

“<” 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.

Microbiology: within the limit Chemistry: within the limit
See all 18 test results
What was tested Value Limit Status
Nitrate 22 mg/L ≤ 50 mg/L within the limit
Nitrite <0,01 mg/L ≤ 0.5 mg/L within the limit
Arsenic 0.7 µg/L ≤ 10 µg/L within the limit
Cadmium <0,025 µg/L ≤ 5 µg/L within the limit
Chromium <0,5 µg/L ≤ 50 µg/L within the limit
Uranium <0,5 µg/L ≤ 30 µg/L within the limit
Fluoride 0.197 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 21 °f no limit for reference
Electrical conductivity 709 µS/cm 200–1,100 µS/cm within the limit
Chloride 57 mg/L ≤ 250 mg/L within the limit
Sulphate 94 mg/L ≤ 250 mg/L within the limit
Sodium 42 mg/L ≤ 200 mg/L within the limit
Iron 7.2 µg/L ≤ 200 µg/L within the limit
Turbidity 0.18 NFU ≤ 2 NFU within the limit

Frequently asked questions

Is tap water in Plouguiel safe to drink?

Yes. At the check on 24 June 2026, the tap water in Plouguiel was within every limit tested. “Eau d'alimentation conforme aux limites de qualité et non conforme aux références de qualité : eau incrustante”

How high are PFAS levels in Plouguiel'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 Plouguiel 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 Plouguiel's tap water?

Too few quantified checks to say (2 since 4 February 2025). pfasnearme adds each new publication weekly; a trend needs at least three quantified values.

How hard is the water in Plouguiel?

The water hardness in Plouguiel is 21 °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 Plouguiel, so in principle the same water.

Nearby communes

The closest to Plouguiel 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=22221
License
Licence Ouverte / Open Licence (Etalab)
Retrieved
21 September 2026
Supply networks
SYNDICAT DU TREGOR

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