PFAS in By's tap water: no test result published yet
Last check: · Source: Hub'eau
PFAS in drinking water
No PFAS results have been published for By 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.
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Water report for By
Get new PFAS results for By, with a short explanation. At most one update a week, only when there's something new.
- Latest water check
- 4 February 2026
- Water supplier
- MAIRIE DE BY
No PFAS result is published for By in the data retrieved on 12 September 2026 (Hub'eau, Qualité de l'eau potable (Ministère de la Santé / OFB / BRGM)). PFAS testing of drinking water has been mandatory across the EU since January 2026. The latest published check dates from 4 February 2026.
Details and sources
What the latest check found
At the latest check, the water was within every limit tested.
See all 16 test results
| What was tested | Value | Limit | Status |
|---|---|---|---|
| Nitrate | 6.5 mg/L | ≤ 50 mg/L | within the limit |
| Nitrite | <0,01 mg/L | ≤ 0.5 mg/L | within the limit |
| Lead | <2 µg/L | ≤ 10 µg/L | within the limit |
| Copper | 0.0644 mg(Cu)/L | ≤ 2 mg(Cu)/L | within the limit |
| Nickel | <2 µg/L | ≤ 20 µg/L | within the limit |
| Cadmium | <1 µg/L | ≤ 5 µg/L | within the limit |
| Chromium | <2 µg/L | ≤ 50 µg/L | within the limit |
| Escherichia coli | <1 n/(100mL) | ≤ 0 mL) | within the limit |
| Enterococci | <1 n/(100mL) | ≤ 0 mL) | within the limit |
| Coliform bacteria | <1 n/(100mL) | ≤ 0 mL) | within the limit |
| pH | 8 unité pH | 6.5–9 unité pH | within the limit |
| Water hardness | 27.5 °f | no limit | for reference |
| Electrical conductivity | 512 µS/cm | 200–1,100 µS/cm | within the limit |
| Chloride | 4.9 mg/L | ≤ 250 mg/L | within the limit |
| Sulphate | 5.9 mg/L | ≤ 250 mg/L | within the limit |
| Turbidity | <0,2 NFU | ≤ 2 NFU | within the limit |
Frequently asked questions
Is tap water in By safe to drink?
Yes. At the check on 4 February 2026, the tap water in By was within every limit tested. “Eau d'alimentation conforme aux exigences de qualité en vigueur pour l'ensemble des paramètres mesurés.”
How high are PFAS levels in By's drinking water?
No PFAS results have been published for By 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 By?
The water hardness in By is 27.5 °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 12 September 2026.
Nearby communes
The closest to By on this site.
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=25104
- License
- Licence Ouverte / Open Licence (Etalab)
- Retrieved
- 12 September 2026
- Supply networks
- BY
This site is a data project, not an official source. If in doubt, check with your water supplier or local authority.