Drinking water quality in Saint-Thégonnec Loc-Eguiner
PFAS in drinking water
The total of 20 PFAS ("forever chemicals") was last measured at 0.0035 µg/L. The EU limit is 0.1 µg/L, so this water is at 3 % of the limit. (29 September 2025)
The four most harmful PFAS add up to 0.0035 µg/L, below the health limit of 0.004 µg/L used in Sweden since 2026.
One of these four, PFOA, is classified as causing cancer in humans by the WHO's cancer research agency (IARC).
Substances too small to measure count as 0, so the real total may be higher.
13 PFAS (see each substance)
| Acide sulfonique de perfluorooctane (PFOS) | 0.0035 µg/L |
| Acide perfluoro-nonanoïque (PFNA) | <0,001 µg/L |
| Acide perfluoro undecane sulfonique (PFUnDS) | <0,001 µg/L |
| Acide perfluoro-octanoïque (PFOA) | <0,002 µg/L |
| Acide perfluorododécanoique (PFDoDA) | <0,002 µg/L |
| Acide perfluoro undecanoïque (PFUnA) | <0,002 µg/L |
| Acide perfluoropentanoïque (PFPEA) | <0,002 µg/L |
| Acide perfluoro tridecane sulfonique (PFTrDS) | <0,001 µg/L |
| Acide perfluorobutanoïque (PFBA) | <0,005 µg/L |
| Acide perfluorononane sulfonique (PFNS) | <0,001 µg/L |
| Perfluorohexane sulfonate (PFHXS) | <0,002 µg/L |
| Acide perfluoropentane sulfonique (PFPS) | <0,001 µg/L |
| Acide perfluorododécane sulfonique (PFDoDS) | <0,001 µg/L |
Water report for Saint-Thégonnec Loc-Eguiner
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Official assessment
The authorities have not published an overall verdict for this water.
„Absence de détection de toxines de cyanobactéries.“
Show all 17 official measurements
| Parameter | Value | Limit | Status |
|---|---|---|---|
| Nitrate | 2.1 mg/L | ≤ 50 mg/L | within limit |
| Nitrite | <0,01 mg/L | ≤ 0.5 mg/L | within limit |
| Arsenic | <1 µg/L | ≤ 10 µg/L | within limit |
| Chromium | <1 µg/L | ≤ 50 µg/L | within limit |
| Uranium | 0.33 µg/L | ≤ 30 µg/L | within limit |
| Fluoride | 0.14 mg/L | ≤ 1.5 mg/L | within limit |
| Escherichia coli | 0 n/(100mL) | ≤ 0 mL) | within limit |
| Enterococci | 0 n/(100mL) | ≤ 0 mL) | within limit |
| Coliform bacteria | 0 n/(100mL) | ≤ 0 mL) | within limit |
| pH | 7.7 unité pH | 6.5–9 unité pH | within limit |
| Water hardness | 6.6 °f | no limit | informational |
| Electrical conductivity | 182 µS/cm | 200–1,100 µS/cm | exceeded |
| Chloride | 13.5 mg/L | ≤ 250 mg/L | within limit |
| Sulphate | 2.6 mg/L | ≤ 250 mg/L | within limit |
| Sodium | 19.8 mg/L | ≤ 200 mg/L | within limit |
| Iron | 20 µg/L | ≤ 200 µg/L | within limit |
| Turbidity | 0.18 NFU | ≤ 2 NFU | within limit |
Frequently asked questions
Is tap water in Saint-Thégonnec Loc-Eguiner safe to drink?
The latest official test failed at least one quality requirement.
How high are PFAS levels in Saint-Thégonnec Loc-Eguiner's drinking water?
The total of 20 PFAS ("forever chemicals") was last measured at 0.0035 µg/L. The EU limit is 0.1 µg/L, so this water is at 3 % of the limit. (below the EU limit)
Does the water in Saint-Thégonnec Loc-Eguiner also meet the strictest limits in Europe?
Yes. Even against Europe's strictest limit, the health limit of 0.004 µg/L used in Sweden since 2026, the measured value of 0.0035 µg/L stays below.
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 28 August 2026.
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
- 28 August 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.