Drinking water quality in Montigny-sur-Loing
PFAS in drinking water
The total of 20 PFAS ("forever chemicals") was last measured at <0,029 µg/L. The EU limit is 0.1 µg/L, so this water is at 0 % of the limit. (18 July 2025)
This source does not list each PFAS substance separately, so we cannot compare this water with the health limit.
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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.“
Values to watch
These values are at least halfway to their legal limit, or over it.
| Parameter | Value | Limit | Status |
|---|---|---|---|
| Nitrate | 35.4 mg/L | ≤ 50 mg/L | within limit |
Show all 14 official measurements
| Parameter | Value | Limit | Status |
|---|---|---|---|
| Nitrate | 35.4 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 |
| Fluoride | 0.09 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 | 7.51 unité pH | 6.5–9 unité pH | within limit |
| Water hardness | 36.45 °f | no limit | informational |
| Electrical conductivity | 676 µS/cm | 200–1,100 µS/cm | within limit |
| Chloride | 22.4 mg/L | ≤ 250 mg/L | within limit |
| Sulphate | 28.1 mg/L | ≤ 250 mg/L | within limit |
| Iron | <10 µg/L | ≤ 200 µg/L | within limit |
| Turbidity | <0,1 NFU | ≤ 2 NFU | within limit |
Frequently asked questions
Is tap water in Montigny-sur-Loing safe to drink?
Yes. The latest official test (4 June 2026) checked the tap water in Montigny-sur-Loing and it passed every requirement.
How high are PFAS levels in Montigny-sur-Loing's drinking water?
The total of 20 PFAS ("forever chemicals") was last measured at <0,029 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 Montigny-sur-Loing?
The water hardness in Montigny-sur-Loing is 36.45 °f (hard). 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=77312
- License
- Licence Ouverte / Open Licence (Etalab)
- Retrieved
- 28 August 2026
- Supply networks
- MONTIGNY-SUR-LOING - SIDEAU
This site is a data project, not an official source. If in doubt, check with your water supplier or local authority.