Drinking water quality in Marly
PFAS in drinking water
The total of 20 PFAS ("forever chemicals") was last measured at 0.027 µg/L. The EU limit is 0.1 µg/L, so this water is at 27 % of the limit. (18 June 2026)
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.
20 PFAS (see each substance)
| Acide perfluoropentanoïque (PFPEA) | 0.014 µg/L |
| Acide perfluorohexanoïque (PFHXA) | 0.009 µg/L |
| Acide perfluoroheptanoïque (PFHPA) | 0.004 µg/L |
| Acide perfluoro-nonanoïque (PFNA) | <0,002 µg/L |
| Acide perfluorobutanoïque (PFBA) | <0,005 µg/L |
| Acide perfluoro-decanoïque (PFDA) | <0,002 µg/L |
| Acide sulfonique de perfluorobutane (PFBS) | <0,002 µg/L |
| Acide perfluoro undecane sulfonique (PFUnDS) | <0,002 µg/L |
| Acide perfluorodecane sulfonique (PFDS) | <0,002 µg/L |
| Acide perfluoro tridecanoique (PFTrDA) | <0,002 µg/L |
| Acide perfluorododécane sulfonique (PFDoDS) | <0,002 µg/L |
| Acide perfluorododécanoique (PFDoDA) | <0,002 µg/L |
| Acide perfluoro tridecane sulfonique (PFTrDS) | <0,005 µg/L |
| Acide sulfonique de perfluorooctane (PFOS) | <0,002 µg/L |
| Acide perfluoroheptane sulfonique (PFHpS) | <0,002 µg/L |
| Acide perfluoro undecanoïque (PFUnA) | <0,002 µg/L |
| Perfluorohexane sulfonate (PFHXS) | <0,002 µg/L |
| Acide perfluoro-octanoïque (PFOA) | <0,002 µg/L |
| Acide perfluorononane sulfonique (PFNS) | <0,002 µg/L |
| Acide perfluoropentane sulfonique (PFPS) | <0,002 µg/L |
Water report for Marly
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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.“
Values to watch
These values are at least halfway to their legal limit, or over it.
| Parameter | Value | Limit | Status |
|---|---|---|---|
| Nitrate | 46 mg/L | ≤ 50 mg/L | within limit |
Show all 14 official measurements
| Parameter | Value | Limit | Status |
|---|---|---|---|
| Nitrate | 46 mg/L | ≤ 50 mg/L | within limit |
| Nitrite | <0,01 mg/L | ≤ 0.5 mg/L | within limit |
| Cadmium | <1 µg/L | ≤ 5 µg/L | within limit |
| Chromium | 6 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 | 17.6 °f | no limit | informational |
| Electrical conductivity | 590 µS/cm | 200–1,100 µS/cm | within limit |
| Chloride | 14 mg/L | ≤ 250 mg/L | within limit |
| Sulphate | 28 mg/L | ≤ 250 mg/L | within limit |
| Iron | 26 µg/L | ≤ 200 µg/L | within limit |
| Turbidity | 0.1 NFU | ≤ 2 NFU | within limit |
Frequently asked questions
Is tap water in Marly safe to drink?
All the values shown here (18 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 Marly's drinking water?
The total of 20 PFAS ("forever chemicals") was last measured at 0.027 µg/L. The EU limit is 0.1 µg/L, so this water is at 27 % of the limit. (below the EU limit)
Does the water in Marly 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 Marly?
The water hardness in Marly is 17.6 °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=57447
- License
- Licence Ouverte / Open Licence (Etalab)
- Retrieved
- 28 August 2026
- Supply networks
- MONTIGNY-LES-METZ 2
This site is a data project, not an official source. If in doubt, check with your water supplier or local authority.