Drinking water quality in Écommoy
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. (1 July 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.
15 PFAS (see each substance)
| Acide perfluorododécanoique (PFDoDA) | <0,002 µg/L |
| Acide perfluoropentane sulfonique (PFPS) | <0,004 µg/L |
| Acide perfluoro-decanoïque (PFDA) | <0,002 µg/L |
| Acide perfluoro tridecane sulfonique (PFTrDS) | <0,004 µg/L |
| Perfluorohexane sulfonate (PFHXS) | <0,002 µg/L |
| Acide perfluorobutanoïque (PFBA) | <0,020 µg/L |
| Acide sulfonique de perfluorooctane (PFOS) | <0,004 µg/L |
| Acide perfluoropentanoïque (PFPEA) | <0,010 µg/L |
| Acide sulfonique de perfluorobutane (PFBS) | <0,010 µg/L |
| Acide perfluorohexanoïque (PFHXA) | <0,010 µg/L |
| Acide perfluoro tridecanoique (PFTrDA) | <0,002 µg/L |
| Acide perfluoro-octanoïque (PFOA) | <0,002 µg/L |
| Acide perfluorododécane sulfonique (PFDoDS) | <0,002 µg/L |
| Acide perfluorononane sulfonique (PFNS) | <0,002 µg/L |
| Acide perfluoro-nonanoïque (PFNA) | <0,002 µg/L |
Water report for Écommoy
Get the free water report for Écommoy, plus an alert whenever new official results are published.
Official assessment
The authorities have not published an overall verdict for this water.
„Eau d'alimentation conforme aux exigences de qualité en vigueur pour l'ensemble des paramètres mesurés.“
Show all 20 official measurements
| Parameter | Value | Limit | Status |
|---|---|---|---|
| Nitrate | 8 mg/L | ≤ 50 mg/L | within limit |
| Nitrite | <0,010 mg/L | ≤ 0.5 mg/L | within limit |
| Lead | 0.6 µg/L | ≤ 10 µg/L | within limit |
| Copper | 0.0239 mg(Cu)/L | ≤ 2 mg(Cu)/L | within limit |
| Nickel | 0.9 µg/L | ≤ 20 µg/L | within limit |
| Arsenic | <0,2 µg/L | ≤ 10 µg/L | within limit |
| Cadmium | 0.024 µg/L | ≤ 5 µg/L | within limit |
| Chromium | 0.5 µg/L | ≤ 50 µg/L | within limit |
| Fluoride | <0,050 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 | 6.9 unité pH | 6.5–9 unité pH | within limit |
| Water hardness | 19.3 °f | no limit | informational |
| Electrical conductivity | 408 µS/cm | 200–1,100 µS/cm | within limit |
| Chloride | 17.3 mg/L | ≤ 250 mg/L | within limit |
| Sulphate | 24.8 mg/L | ≤ 250 mg/L | within limit |
| Sodium | 6.3 mg/L | ≤ 200 mg/L | within limit |
| Iron | 35 µg/L | ≤ 200 µg/L | within limit |
| Turbidity | 0.35 NFU | ≤ 2 NFU | within limit |
Frequently asked questions
Is tap water in Écommoy safe to drink?
All the values shown here (15 June 2026) are within the legal limits, but the authorities have not published an overall verdict for this water.
How high are PFAS levels in Écommoy'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 Écommoy 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 Écommoy?
The water hardness in Écommoy is 19.3 °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=72124
- License
- Licence Ouverte / Open Licence (Etalab)
- Retrieved
- 28 August 2026
- Supply networks
- SIDERM ECOMMOY
This site is a data project, not an official source. If in doubt, check with your water supplier or local authority.