Drinking water quality in La Teste-de-Buch
PFAS in drinking water
The total of 20 PFAS ("forever chemicals") was last measured at 0.012 µg/L. The EU limit is 0.1 µg/L, so this water is at 12 % of the limit. (21 May 2026)
The four most harmful PFAS add up to 0.002 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.
20 PFAS (see each substance)
| Acide perfluoropentanoïque (PFPEA) | 0.007 µg/L |
| Acide perfluorohexanoïque (PFHXA) | 0.003 µg/L |
| Acide perfluoro-octanoïque (PFOA) | 0.002 µg/L |
| Acide perfluorobutanoïque (PFBA) | <0,005 µg/L |
| Acide perfluorodecane sulfonique (PFDS) | <0,005 µg/L |
| Acide sulfonique de perfluorobutane (PFBS) | <0,005 µg/L |
| Acide sulfonique de perfluorooctane (PFOS) | <0,001 µg/L |
| Acide perfluoroheptane sulfonique (PFHpS) | <0,002 µg/L |
| Acide perfluorododécane sulfonique (PFDoDS) | <0,005 µg/L |
| Acide perfluoropentane sulfonique (PFPS) | <0,002 µg/L |
| Acide perfluoro undecanoïque (PFUnA) | <0,005 µg/L |
| Acide perfluoro-decanoïque (PFDA) | <0,005 µg/L |
| Acide perfluorononane sulfonique (PFNS) | <0,002 µg/L |
| Perfluorohexane sulfonate (PFHXS) | <0,001 µg/L |
| Acide perfluoro tridecane sulfonique (PFTrDS) | <0,005 µg/L |
| Acide perfluoro tridecanoique (PFTrDA) | <0,005 µg/L |
| Acide perfluoroheptanoïque (PFHPA) | <0,002 µg/L |
| Acide perfluoro undecane sulfonique (PFUnDS) | <0,005 µg/L |
| Acide perfluorododécanoique (PFDoDA) | <0,005 µg/L |
| Acide perfluoro-nonanoïque (PFNA) | <0,002 µg/L |
Water report for La Teste-de-Buch
Get the free water report for La Teste-de-Buch, plus an alert whenever new official results are published.
Official assessment
The authorities have not published an overall verdict for this water.
„Eau d'alimentation conforme aux exigences de qualité en vigueur pour l'ensemble des paramètres mesurés.“
Show all 21 official measurements
| Parameter | Value | Limit | Status |
|---|---|---|---|
| Nitrate | 0.3 mg/L | ≤ 50 mg/L | within limit |
| Nitrite | <0,01 mg/L | ≤ 0.1 mg/L | within limit |
| Lead | 0.8 µg/L | ≤ 10 µg/L | within limit |
| Copper | <0,005 mg(Cu)/L | ≤ 2 mg(Cu)/L | within limit |
| Nickel | <0,5 µg/L | ≤ 20 µg/L | within limit |
| Arsenic | <0,5 µg/L | ≤ 10 µg/L | within limit |
| Cadmium | <0,5 µg/L | ≤ 5 µg/L | within limit |
| Chromium | <0,5 µg/L | ≤ 50 µg/L | within limit |
| Uranium | <0,5 µg/L | ≤ 30 µg/L | within limit |
| Fluoride | 0.1 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 | 8.1 unité pH | 6.5–9 unité pH | within limit |
| Water hardness | 9.9 °f | no limit | informational |
| Electrical conductivity | 362 µS/cm | 200–1,100 µS/cm | within limit |
| Chloride | 46 mg/L | ≤ 250 mg/L | within limit |
| Sulphate | 8 mg/L | ≤ 250 mg/L | within limit |
| Sodium | 29 mg/L | ≤ 200 mg/L | within limit |
| Iron | 10 µg/L | ≤ 200 µg/L | within limit |
| Turbidity | 0.28 NFU | ≤ 1 NFU | within limit |
Frequently asked questions
Is tap water in La Teste-de-Buch safe to drink?
All the values shown here (30 June 2026) are within the legal limits, but the authorities have not published an overall verdict for this water.
How high are PFAS levels in La Teste-de-Buch's drinking water?
The total of 20 PFAS ("forever chemicals") was last measured at 0.012 µg/L. The EU limit is 0.1 µg/L, so this water is at 12 % of the limit. (below the EU limit)
Does the water in La Teste-de-Buch 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 0.002 µg/L stays below.
How hard is the water in La Teste-de-Buch?
The water hardness in La Teste-de-Buch is 9.9 °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=33529
- License
- Licence Ouverte / Open Licence (Etalab)
- Retrieved
- 28 August 2026
- Supply networks
- COBAS
This site is a data project, not an official source. If in doubt, check with your water supplier or local authority.