Drinking water quality in La Guerche-de-Bretagne
PFAS in drinking water
No PFAS results have been published for La Guerche-de-Bretagne yet. Testing has been required across the EU since January 2026. We will show the values here as soon as they come out.
"Not published" does not mean "not present". Without test results, no one can say how much PFAS is in this water.
Water report for La Guerche-de-Bretagne
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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. Cependant, la valeur élevée en chlore est susceptible de constituer une gêne pour les abonnés (goûts, odeurs). L'exploitant a été informé de cette situation dès connaissance de celle-ci par mon service.“
Show all 17 official measurements
| Parameter | Value | Limit | Status |
|---|---|---|---|
| Nitrate | 8.7 mg/L | ≤ 50 mg/L | within limit |
| Nitrite | <0,02 mg/L | ≤ 0.5 mg/L | within limit |
| Lead | <1,0 µg/L | ≤ 10 µg/L | within limit |
| Copper | 0.0198 mg(Cu)/L | ≤ 2 mg(Cu)/L | within limit |
| Nickel | 2.3 µg/L | ≤ 20 µg/L | within limit |
| Cadmium | <0,025 µg/L | ≤ 5 µg/L | within limit |
| Chromium | <1,0 µg/L | ≤ 50 µg/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 unité pH | 6.5–9 unité pH | within limit |
| Water hardness | 21.7 °f | no limit | informational |
| Electrical conductivity | 622 µS/cm | 200–1,100 µS/cm | within limit |
| Chloride | 73.4 mg/L | ≤ 250 mg/L | within limit |
| Sulphate | 102 mg/L | ≤ 250 mg/L | within limit |
| Iron | <20 µg/L | ≤ 200 µg/L | within limit |
| Turbidity | <0,20 NFU | ≤ 2 NFU | within limit |
Frequently asked questions
Is tap water in La Guerche-de-Bretagne safe to drink?
Yes. The latest official test (5 January 2026) checked the tap water in La Guerche-de-Bretagne and it passed every requirement.
How high are PFAS levels in La Guerche-de-Bretagne's drinking water?
No PFAS results have been published for La Guerche-de-Bretagne yet. Testing has been required across the EU since January 2026. We will show the values here as soon as they come out.
How hard is the water in La Guerche-de-Bretagne?
The water hardness in La Guerche-de-Bretagne is 21.7 °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=35125
- License
- Licence Ouverte / Open Licence (Etalab)
- Retrieved
- 28 August 2026
- Supply networks
- EAU PORTES BRETAGNE_BILLERIE_GUERCHE
This site is a data project, not an official source. If in doubt, check with your water supplier or local authority.