Drinking water quality in Mont-près-Chambord
PFAS in drinking water
The total of 20 PFAS ("forever chemicals") was last measured at <SEUIL µg/L. The EU limit is 0.1 µg/L, so this water is at 0 % of the limit. (19 February 2025)
The four most harmful PFAS add up to 0 µg/L, below the health limit of 0.004 µg/L used in Sweden since 2026.
Substances too small to measure count as 0, so the real total may be higher.
14 PFAS (see each substance)
| Acide perfluoroheptane sulfonique (PFHpS) | <0,004 µg/L |
| Acide perfluorododécanoique (PFDoDA) | <0,002 µg/L |
| Acide perfluoro tridecane sulfonique (PFTrDS) | <0,004 µg/L |
| Acide perfluorononane sulfonique (PFNS) | <0,002 µg/L |
| Acide perfluoro-nonanoïque (PFNA) | <0,002 µg/L |
| Acide perfluoropentanoïque (PFPEA) | <0,010 µg/L |
| Acide perfluorobutanoïque (PFBA) | <0,020 µg/L |
| Acide perfluoroheptanoïque (PFHPA) | <0,002 µg/L |
| Acide sulfonique de perfluorobutane (PFBS) | <0,010 µg/L |
| Acide perfluoro undecanoïque (PFUnA) | <0,002 µg/L |
| Acide perfluorodecane sulfonique (PFDS) | <0,002 µg/L |
| Acide perfluoro undecane sulfonique (PFUnDS) | <0,004 µg/L |
| Acide perfluoro-decanoïque (PFDA) | <0,002 µg/L |
| Acide perfluoro-octanoïque (PFOA) | <0,002 µg/L |
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Official assessment
The latest official test passed all quality requirements.
„En ce point de prélèvement, l'eau présente une teneur en plomb non conforme à la limite de qualité fixée à 10 µg/l. La teneur en plomb ne vaut que pour le point d'utilisation où elle a été mesurée. Compte tenu de l'influence du réseau de distribution d'eau (réseau intérieur et éventuellement branchement public) sur la dissolution des métaux, ces valeurs ne sont pas représentatives de la qualité de l'eau pour l'ensemble des consommateurs du réseau de distribution . Une restriction d'usage pour les femmes enceintes et les enfants de moins de 7 ans , dans le secteur concerné, a été demandée par la communauté de Grand Chambord, en charge de la producti on de l'eau potable. Des investigations sont en cours ainsi que des travaux de renouvelleme nt de matériel (robinet, clapet anti-retou,etc.).“
Values to watch
These values are at least halfway to their legal limit, or over it.
| Parameter | Value | Limit | Status |
|---|---|---|---|
| Arsenic | 7.8 µg/L | ≤ 10 µg/L | within limit |
Show all 19 official measurements
| Parameter | Value | Limit | Status |
|---|---|---|---|
| Nitrate | 0.15 mg/L | ≤ 50 mg/L | within limit |
| Nitrite | <0,010 mg/L | ≤ 0.5 mg/L | within limit |
| Lead | <2 µg/L | ≤ 10 µg/L | within limit |
| Copper | 0.034 mg(Cu)/L | ≤ 2 mg(Cu)/L | within limit |
| Nickel | <5 µg/L | ≤ 20 µg/L | within limit |
| Arsenic | 7.8 µg/L | ≤ 10 µg/L | within limit |
| Cadmium | <0,010 µg/L | ≤ 5 µg/L | within limit |
| Chromium | 0.6 µg/L | ≤ 50 µg/L | within limit |
| Fluoride | 0.157 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 | 7.7 unité pH | 6.5–9 unité pH | within limit |
| Water hardness | 19.5 °f | no limit | informational |
| Electrical conductivity | 396 µS/cm | 200–1,100 µS/cm | within limit |
| Chloride | 15.1 mg/L | ≤ 250 mg/L | within limit |
| Sulphate | 12.2 mg/L | ≤ 250 mg/L | within limit |
| Iron | 20 µg/L | ≤ 200 µg/L | within limit |
| Turbidity | <0,30 NFU | ≤ 2 NFU | within limit |
Frequently asked questions
Is tap water in Mont-près-Chambord safe to drink?
Yes. The latest official test (1 April 2026) checked the tap water in Mont-près-Chambord and it passed every requirement.
How high are PFAS levels in Mont-près-Chambord's drinking water?
The total of 20 PFAS ("forever chemicals") was last measured at <SEUIL µg/L. The EU limit is 0.1 µg/L, so this water is at 0 % of the limit. (below the EU limit)
Does the water in Mont-près-Chambord also meet the strictest limits in Europe?
Yes. Even against Europe's strictest limit, the health limit of 0.004 µg/L used in Sweden since 2026, the measured value of 0 µg/L stays below.
How hard is the water in Mont-près-Chambord?
The water hardness in Mont-près-Chambord is 19.5 °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 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=41150
- License
- Licence Ouverte / Open Licence (Etalab)
- Retrieved
- 28 August 2026
- Supply networks
- MONT-PRES-CHAMBORD
This site is a data project, not an official source. If in doubt, check with your water supplier or local authority.