Drinking water quality in La Rochelle
PFAS in drinking water
The total of 20 PFAS ("forever chemicals") was last measured at <SEUIL µg/L. The EU limit is 0.1 µg/L, so this water is at 0 % of the limit. (3 March 2026)
This source does not list each PFAS substance separately, so we cannot compare this water with the health limit.
Water report for La Rochelle
Get the free water report for La Rochelle, 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 limites de qualité. Toutefois l’eau pr ovient d’une ressource vulnérable aux pollutions et fait l’objet d’un suivi resserré car la valeur indicative de 0,9 µg/L pour le métabolite R471811 est dépassée.“
Values to watch
These values are at least halfway to their legal limit, or over it.
| Parameter | Value | Limit | Status |
|---|---|---|---|
| Nitrate | 29 mg/L | ≤ 50 mg/L | within limit |
Show all 17 official measurements
| Parameter | Value | Limit | Status |
|---|---|---|---|
| Nitrate | 29 mg/L | ≤ 50 mg/L | within limit |
| Nitrite | <0,01 mg/L | ≤ 0.5 mg/L | within limit |
| Lead | 0.2 µg/L | ≤ 10 µg/L | within limit |
| Copper | 0.0038 mg(Cu)/L | ≤ 2 mg(Cu)/L | within limit |
| Nickel | 1.2 µg/L | ≤ 20 µg/L | within limit |
| Chromium | <0,5 µg/L | ≤ 50 µg/L | within limit |
| Uranium | 0.52 µg/L | ≤ 30 µg/L | within limit |
| Fluoride | 0.48 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) | within limit |
| pH | 7.2 unité pH | 6.5–9 unité pH | within limit |
| Water hardness | 27.7 °f | no limit | informational |
| Electrical conductivity | 623 µS/cm | 200–1,100 µS/cm | within limit |
| Chloride | 28 mg/L | ≤ 250 mg/L | within limit |
| Sulphate | 29 mg/L | ≤ 250 mg/L | within limit |
| Turbidity | <0,2 NFU | ≤ 2 NFU | within limit |
Frequently asked questions
Is tap water in La Rochelle safe to drink?
All the values shown here (23 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 Rochelle's drinking water?
The total of 20 PFAS ("forever chemicals") was last measured at <SEUIL µg/L. The EU limit is 0.1 µg/L, so this water is at 0 % of the limit. (below the EU limit)
How hard is the water in La Rochelle?
The water hardness in La Rochelle is 27.7 °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=17300
- License
- Licence Ouverte / Open Licence (Etalab)
- Retrieved
- 28 August 2026
- Supply networks
- R. DE LA ROCHELLE NORD-SUD, R. DE LA ROCHELLE CENTRE
This site is a data project, not an official source. If in doubt, check with your water supplier or local authority.