Drinking water quality in Chilly-Mazarin
PFAS in drinking water
No PFAS results have been published for Chilly-Mazarin 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 Chilly-Mazarin
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Official assessment
The latest official test passed all quality requirements.
„Eau conforme pour tous les paramètres à l'exception de la température, qui est légèrement supérieure à la norme. Lors de ce phénomène saisonnier, le gestionnaire doit être vigilant sur le taux de chlore afin d'éviter la prolifération microbienne sur le réseau.“
Show all 13 official measurements
| Parameter | Value | Limit | Status |
|---|---|---|---|
| Nitrate | 18.3 mg/L | ≤ 50 mg/L | within limit |
| Nitrite | <0,01 mg/L | ≤ 0.5 mg/L | within limit |
| Chromium | <5 µg/L | ≤ 50 µg/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 | 7.6 unité pH | 6.5–9 unité pH | within limit |
| Water hardness | 27.8 °f | no limit | informational |
| Electrical conductivity | 570 µS/cm | 200–1,100 µS/cm | within limit |
| Chloride | 30.7 mg/L | ≤ 250 mg/L | within limit |
| Sulphate | 67.4 mg/L | ≤ 250 mg/L | within limit |
| Iron | 35 µg/L | ≤ 200 µg/L | within limit |
| Turbidity | <0,10 NFU | ≤ 2 NFU | within limit |
Frequently asked questions
Is tap water in Chilly-Mazarin safe to drink?
Yes. The latest official test (29 June 2026) checked the tap water in Chilly-Mazarin and it passed every requirement.
How high are PFAS levels in Chilly-Mazarin's drinking water?
No PFAS results have been published for Chilly-Mazarin 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 Chilly-Mazarin?
The water hardness in Chilly-Mazarin is 27.8 °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=91161
- License
- Licence Ouverte / Open Licence (Etalab)
- Retrieved
- 28 August 2026
- Supply networks
- PS SAVIGNY
This site is a data project, not an official source. If in doubt, check with your water supplier or local authority.