PFAS in Saint-Thégonnec Loc-Eguiner'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 Guimiliau, on the same distribution network as Saint-Thégonnec Loc-Eguiner (ST-THEGONNEC-RESTANCAROFF). 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 13 April 2026
20 PFAS (see each substance)
| PFAS substance | Value |
|---|---|
| Perfluorohexane sulfonate (PFHXS) | <0,002 µg/L |
| Acide perfluoro undecanoïque (PFUnA) | <0,002 µg/L |
| Acide perfluoroheptane sulfonique (PFHpS) | <0,002 µg/L |
| Acide perfluorododécanoique (PFDoDA) | <0,002 µg/L |
| Acide perfluoropentanoïque (PFPEA) | <0,002 µg/L |
| Acide sulfonique de perfluorobutane (PFBS) | <0,005 µg/L |
| Acide perfluoro-nonanoïque (PFNA) | <0,001 µg/L |
| Acide perfluoroheptanoïque (PFHPA) | <0,005 µg/L |
| Acide perfluorohexanoïque (PFHXA) | <0,005 µg/L |
| Acide perfluoropentane sulfonique (PFPS) | <0,001 µg/L |
| Acide perfluoro-octanoïque (PFOA) | <0,002 µg/L |
| Acide perfluorobutanoïque (PFBA) | <0,005 µg/L |
| Acide perfluorododécane sulfonique (PFDoDS) | <0,001 µg/L |
| Acide perfluoro tridecanoique (PFTrDA) | <0,002 µg/L |
| Acide perfluoro tridecane sulfonique (PFTrDS) | <0,001 µg/L |
| Acide perfluorononane sulfonique (PFNS) | <0,001 µg/L |
| Acide perfluoro-decanoïque (PFDA) | <0,002 µg/L |
| Acide perfluoro undecane sulfonique (PFUnDS) | <0,001 µg/L |
| Acide sulfonique de perfluorooctane (PFOS) | <0,001 µg/L |
| Acide perfluorodecane sulfonique (PFDS) | <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 Saint-Thégonnec Loc-Eguiner
Get new PFAS results for Saint-Thégonnec Loc-Eguiner, 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
- 13 April 2026
- Water supplier
- SPE AN DOUR-MORLAIX-COMMUNAUTE
In Saint-Thégonnec Loc-Eguiner, none of the 4 most closely watched PFAS (PFAS-4) was detected at the latest PFAS check on 13 April 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 Guimiliau, on the same network. 2 checks since 29 September 2025: PFAS-4 up to 3.5 ng/L, sometimes 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 Saint-Thégonnec Loc-Eguiner
3 PFAS checks since 17 March 2025, from the published measurements. Samples from 2 communes on the same network: it's the same water, so each one applies to Saint-Thégonnec Loc-Eguiner. Samples come from 2 distribution networks. The trend refers to the network “BODINERY”.
“Calculated”: PFAS-4 worked out from the four substances in the same sample. The chart, averages and trends use lab-published sums only.
| Date | PFAS-4 | Sum of 20 PFAS | Sampled at | Network |
|---|---|---|---|---|
| < detection limit | < detection limit | Guimiliau | ST-THEGONNEC-RESTANCAROFF | |
| 3.5 ng/L | 3.5 ng/L | Saint-Thégonnec Loc-Eguiner | BODINERY | |
| < 6 ng/L · calculated | < detection limit | Saint-Thégonnec Loc-Eguiner | BODINERY |
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
The authorities have not published an overall verdict for this water.
Values to watch
These results are close to their legal limit, or over it.
| What was tested | Value | Limit | Status |
|---|---|---|---|
| Nitrate | 28 mg/L | ≤ 50 mg/L | within the limit |
See all 18 test results
| What was tested | Value | Limit | Status |
|---|---|---|---|
| Nitrate | 28 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 | <0,1 µg/L | ≤ 5 µg/L | within the limit |
| Chromium | <1 µg/L | ≤ 50 µg/L | within the limit |
| Uranium | 0.33 µg/L | ≤ 30 µg/L | within the limit |
| Fluoride | 0.14 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 | 6.6 °f | no limit | for reference |
| Electrical conductivity | 277 µS/cm | 200–1,100 µS/cm | within the limit |
| Chloride | 21.6 mg/L | ≤ 250 mg/L | within the limit |
| Sulphate | 25 mg/L | ≤ 250 mg/L | within the limit |
| Sodium | 19.8 mg/L | ≤ 200 mg/L | within the limit |
| Iron | <5 µg/L | ≤ 200 µg/L | within the limit |
| Turbidity | 0.13 NFU | ≤ 2 NFU | within the limit |
Frequently asked questions
Is tap water in Saint-Thégonnec Loc-Eguiner safe to drink?
All the values shown here (28 July 2026) are within the legal limits, but the authorities have not published an overall verdict for this water. “Eau d'alimentation conforme aux exigences de qualité en vigueur, absence de détection de toxines de cyanobactéries.”
How high are PFAS levels in Saint-Thégonnec Loc-Eguiner'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 Saint-Thégonnec Loc-Eguiner 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 Saint-Thégonnec Loc-Eguiner's tap water?
Too few quantified checks to say (1 since 17 March 2025). pfasnearme adds each new publication weekly; a trend needs at least three quantified values. These history statistics use laboratory-published sums only.
How hard is the water in Saint-Thégonnec Loc-Eguiner?
The water hardness in Saint-Thégonnec Loc-Eguiner is 6.6 °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 Saint-Thégonnec Loc-Eguiner, so in principle the same water.
Nearby communes
The closest to Saint-Thégonnec Loc-Eguiner 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=29266
- License
- Licence Ouverte / Open Licence (Etalab)
- Retrieved
- 21 September 2026
- Supply networks
- BODINERY, ST-THEGONNEC-RESTANCAROFF
This site is a data project, not an official source. If in doubt, check with your water supplier or local authority.