Drinking water quality in Millau
PFAS in drinking water
The total of 20 PFAS ("forever chemicals") was last measured at <0,044 µg/L. The EU limit is 0.1 µg/L, so this water is at 0 % of the limit. (10 September 2025)
The four most harmful PFAS add up to 0 µg/L, below the health limit of 0.004 µg/L used in Sweden since 2026.
Substances too small to measure count as 0, so the real total may be higher.
8 PFAS (see each substance)
| Acide perfluoro undecane sulfonique (PFUnDS) | <0,0015 µg/L |
| Acide perfluorododécanoique (PFDoDA) | <0,0015 µg/L |
| Acide perfluoro-octanoïque (PFOA) | <0,0015 µg/L |
| Acide perfluorodecane sulfonique (PFDS) | <0,0015 µg/L |
| Acide sulfonique de perfluorobutane (PFBS) | <0,005 µg/L |
| Acide perfluorobutanoïque (PFBA) | <0,005 µg/L |
| Acide perfluoro tridecanoique (PFTrDA) | <0,005 µg/L |
| Acide perfluoro-nonanoïque (PFNA) | <0,0015 µg/L |
Water report for Millau
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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.“
Values to watch
These values are at least halfway to their legal limit, or over it.
| Parameter | Value | Limit | Status |
|---|---|---|---|
| Coliform bacteria | 1 n/(100mL) | ≤ 0 mL) | exceeded |
Show all 18 official measurements
| Parameter | Value | Limit | Status |
|---|---|---|---|
| Nitrate | 12.3 mg/L | ≤ 50 mg/L | within limit |
| Nitrite | <0,01 mg/L | ≤ 0.5 mg/L | within limit |
| Lead | 0.54 µg/L | ≤ 10 µg/L | within limit |
| Copper | 0.012 mg(Cu)/L | ≤ 2 mg(Cu)/L | within limit |
| Nickel | <0,2 µg/L | ≤ 20 µg/L | within limit |
| Cadmium | <0,02 µg/L | ≤ 5 µg/L | within limit |
| Chromium | 0.43 µg/L | ≤ 50 µg/L | within limit |
| Fluoride | <0,1 mg/L | ≤ 1.5 mg/L | within limit |
| Escherichia coli | <1 n/(100mL) | ≤ 0 mL) | within limit |
| Enterococci | <1 n/(100mL) | ≤ 0 mL) | within limit |
| Coliform bacteria | 1 n/(100mL) | ≤ 0 mL) | exceeded |
| pH | 7.6 unité pH | 6.5–9 unité pH | within limit |
| Water hardness | 25.9 °f | no limit | informational |
| Electrical conductivity | 470 µS/cm | 200–1,100 µS/cm | within limit |
| Chloride | 5.6 mg/L | ≤ 250 mg/L | within limit |
| Sulphate | 6 mg/L | ≤ 250 mg/L | within limit |
| Iron | 2.2 µg/L | ≤ 200 µg/L | within limit |
| Turbidity | 0.1 NFU | ≤ 2 NFU | within limit |
Frequently asked questions
Is tap water in Millau safe to drink?
The latest official test failed at least one quality requirement.
How high are PFAS levels in Millau's drinking water?
The total of 20 PFAS ("forever chemicals") was last measured at <0,044 µg/L. The EU limit is 0.1 µg/L, so this water is at 0 % of the limit. (below the EU limit)
Does the water in Millau 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 µg/L stays below.
How hard is the water in Millau?
The water hardness in Millau is 25.9 °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 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=12145
- License
- Licence Ouverte / Open Licence (Etalab)
- Retrieved
- 28 August 2026
- Supply networks
- CREISSELS BOURG, MILLAU, CAUSSE NOIR, LARZAC
This site is a data project, not an official source. If in doubt, check with your water supplier or local authority.