Drinking water quality in Castres-Gironde
PFAS in drinking water
The total of 20 PFAS ("forever chemicals") was last measured at 0.002 µg/L. The EU limit is 0.1 µg/L, so this water is at 2 % of the limit. (26 June 2025)
This source does not list each PFAS substance separately, so we cannot compare this water with the health limit.
Water report for Castres-Gironde
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Official assessment
The latest official test passed all quality requirements.
„Eau d'alimentation conforme aux exigences de qualité en vigueur pour l'ensemble des paramètres mesurés.“
Show all 20 official measurements
| Parameter | Value | Limit | Status |
|---|---|---|---|
| Nitrate | 6.7 mg/L | ≤ 50 mg/L | within limit |
| Nitrite | 0.011 mg/L | ≤ 0.5 mg/L | within limit |
| Lead | <0,5 µg/L | ≤ 10 µg/L | within limit |
| Copper | 0.006 mg(Cu)/L | ≤ 2 mg(Cu)/L | within limit |
| Nickel | <0,5 µg/L | ≤ 20 µg/L | within limit |
| Arsenic | 0.6 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 |
| Fluoride | 0.061 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 unité pH | 6.5–9 unité pH | within limit |
| Water hardness | 29.4 °f | no limit | informational |
| Electrical conductivity | 626 µS/cm | 200–1,100 µS/cm | within limit |
| Chloride | 26 mg/L | ≤ 250 mg/L | within limit |
| Sulphate | 12 mg/L | ≤ 250 mg/L | within limit |
| Sodium | 17 mg/L | ≤ 200 mg/L | within limit |
| Iron | <5 µg/L | ≤ 200 µg/L | within limit |
| Turbidity | <0,2 NFU | ≤ 2 NFU | within limit |
Frequently asked questions
Is tap water in Castres-Gironde safe to drink?
Yes. The latest official test (8 June 2026) checked the tap water in Castres-Gironde and it passed every requirement.
How high are PFAS levels in Castres-Gironde's drinking water?
The total of 20 PFAS ("forever chemicals") was last measured at 0.002 µg/L. The EU limit is 0.1 µg/L, so this water is at 2 % of the limit. (below the EU limit)
How hard is the water in Castres-Gironde?
The water hardness in Castres-Gironde is 29.4 °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=33109
- License
- Licence Ouverte / Open Licence (Etalab)
- Retrieved
- 28 August 2026
- Supply networks
- ARPOCABE
This site is a data project, not an official source. If in doubt, check with your water supplier or local authority.