PFAS in Dammarie-les-Lys's tap water: 3 ng/L, 6x our 0.5 ng/L benchmark
Last PFAS check: · Source: Hub'eau
PFAS in drinking water
6× above our health benchmark
0.5 ng/L is our benchmark, not an official limit. Same EFSA method as Sweden, Denmark and the Netherlands, but stricter. It's a yearly average, compared here with the latest check.
More about this result
The US also limits PFOA and PFOS to 4 ng/L each, per substance.
Substances below the detection limit count as 0, so the real total may be higher.
One of these four, PFOA, is classified as causing cancer in humans by the WHO's cancer research agency (IARC).
More PFAS than in 88% of the cities we track
checked on 15 July 2026
20 PFAS (see each substance)
| PFAS substance | Value |
|---|---|
| Perfluorohexane sulfonate (PFHXS) | 0.002 µg/L |
| Acide sulfonique de perfluorooctane (PFOS) | 0.001 µg/L |
| Acide perfluoropentane sulfonique (PFPS) | <0,001 µg/L |
| Acide perfluorodecane sulfonique (PFDS) | <0,001 µg/L |
| Acide perfluoro-decanoïque (PFDA) | <0,001 µg/L |
| Acide perfluoropentanoïque (PFPEA) | <0,001 µg/L |
| Acide perfluorohexanoïque (PFHXA) | <0,002 µg/L |
| Acide perfluoro-nonanoïque (PFNA) | <0,001 µg/L |
| Acide perfluoro tridecane sulfonique (PFTrDS) | <0,005 µg/L |
| Acide perfluorobutanoïque (PFBA) | <0,002 µg/L |
| Acide perfluoro tridecanoique (PFTrDA) | <0,001 µg/L |
| Acide perfluorododécane sulfonique (PFDoDS) | <0,001 µg/L |
| Acide perfluoroheptane sulfonique (PFHpS) | <0,002 µg/L |
| Acide perfluoroheptanoïque (PFHPA) | <0,001 µg/L |
| Acide perfluoro undecanoïque (PFUnA) | <0,001 µg/L |
| Acide perfluorononane sulfonique (PFNS) | <0,002 µg/L |
| Acide sulfonique de perfluorobutane (PFBS) | <0,001 µg/L |
| Acide perfluoro-octanoïque (PFOA) | <0,001 µg/L |
| Acide perfluorododécanoique (PFDoDA) | <0,001 µg/L |
| Acide perfluoro undecane sulfonique (PFUnDS) | <0,002 µg/L |
Above our health benchmark. Here are some filter options.
- EU legal limit
- 3 ng/L sum of 20 PFAS, below the 100 ng/L limit
- Last PFAS test
- 15 July 2026
- Water supplier
- VEOLIA - GIE ILE DE FRANCE
In Dammarie-les-Lys, the 4 most closely watched PFAS (PFAS-4) add up to 3 ng/L (0.003 µg/L) at the latest PFAS check on 15 July 2026. That's 6 times our 0.5 ng/L health benchmark, but below Sweden's legal limit of 4 ng/L. Sum of 20 PFAS: 3 ng/L (0.003 µg/L), below the EU legal limit (100 ng/L). 2 checks since 9 March 2026: PFAS-4 from 3 ng/L to 5 ng/L. Source: Hub'eau, Qualité de l'eau potable (Ministère de la Santé / OFB / BRGM).
Details and sources
PFAS over time in Dammarie-les-Lys
6 PFAS checks since 17 April 2025, from the published measurements. Samples from 2 communes on the same network: it's the same water, so each one applies to Dammarie-les-Lys. Samples come from 2 distribution networks. The trend refers to the network “DAMMARIE LES LYS A - CDA MVS”.
“Calculated”: PFAS-4 worked out from the four substances in the same sample. The chart, averages and trends use lab-published sums only.
| Date | PFAS-4 | Sum of 20 PFAS | Sampled at | Network |
|---|---|---|---|---|
| 3 ng/L | 3 ng/L | Dammarie-les-Lys | DAMMARIE LES LYS B - CDA MVS | |
| 5 ng/L | 5 ng/L | La Rochette | DAMMARIE LES LYS A - CDA MVS | |
| 2 ng/L – < 5 ng/L · calculated | 2 ng/L | La Rochette | DAMMARIE LES LYS A - CDA MVS | |
| 3 ng/L – < 5 ng/L · calculated | 3 ng/L | Dammarie-les-Lys | DAMMARIE LES LYS B - CDA MVS | |
| 2 ng/L – < 5 ng/L · calculated | 4 ng/L | La Rochette | DAMMARIE LES LYS A - CDA MVS | |
| 4 ng/L – < 6 ng/L · calculated | 12 ng/L | La Rochette | DAMMARIE LES LYS A - CDA MVS |
Calculated values: “<” is an upper bound from published thresholds, “≥” a lower bound, “–” means no published sum or complete measurement. How to read a PFAS result
What the latest check found
At the latest check, the water was within every limit tested.
See all 18 test results
| What was tested | Value | Limit | Status |
|---|---|---|---|
| Nitrate | 12.7 mg/L | ≤ 50 mg/L | within the limit |
| Nitrite | <0,01 mg/L | ≤ 0.1 mg/L | within the limit |
| Arsenic | <2 µg/L | ≤ 10 µg/L | within the limit |
| Cadmium | <1 µg/L | ≤ 5 µg/L | within the limit |
| Chromium | N.M. µg/L | ≤ 6 µg/L | no verdict |
| Uranium | <10 µg/L | ≤ 30 µg/L | within the limit |
| Fluoride | 0.12 mg/L | ≤ 1.5 mg/L | within the limit |
| Escherichia coli | <1 n/(100mL) | ≤ 0 mL) | within the limit |
| Enterococci | <1 n/(100mL) | ≤ 0 mL) | within the limit |
| Coliform bacteria | <1 n/(100mL) | ≤ 0 mL) | within the limit |
| pH | 7.36 unité pH | 6.5–9.5 pH | within the limit |
| Water hardness | 22.75 °f | no limit | for reference |
| Electrical conductivity | 624 µS/cm | 200–1,100 µS/cm | within the limit |
| Chloride | 56 mg/L | ≤ 250 mg/L | within the limit |
| Sulphate | 17.1 mg/L | ≤ 250 mg/L | within the limit |
| Sodium | 21.4 mg/L | ≤ 200 mg/L | within the limit |
| Iron | <10 µg/L | ≤ 200 µg/L | within the limit |
| Turbidity | 0.17 NFU | ≤ 2 NFU | within the limit |
Frequently asked questions
Is tap water in Dammarie-les-Lys safe to drink?
Yes. At the check on 15 July 2026, the tap water in Dammarie-les-Lys was within every limit tested. “Eau d'alimentation conforme aux exigences de qualité en vigueur pour l'ensemble des paramètres mesurés. Toutefois, les valeurs en chlore mesurées sont inférieures aux valeurs minimales recommandées de 0,10 mg/l sur l’ensemble du réseau de distribution.”
How high are PFAS levels in Dammarie-les-Lys's drinking water?
The total of 20 PFAS ("forever chemicals") was last measured at 3 ng/L. The EU limit is 100 ng/L, so this water is at 3 % of the limit. (below the EU limit)
Does the water in Dammarie-les-Lys also meet the strictest limits in Europe?
Yes. Even against Europe's strictest legal limit, Sweden's 4 ng/L in force since 2026, the measured value of 3 ng/L stays below.
Are PFAS levels rising in Dammarie-les-Lys's tap water?
Too few quantified checks to say (1 since 17 April 2025). pfasnearme adds each new publication weekly; a trend needs at least three quantified values. These history statistics use laboratory-published sums only.
How hard is the water in Dammarie-les-Lys?
The water hardness in Dammarie-les-Lys is 22.8 °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 21 September 2026.
Same water network
Same distribution network as Dammarie-les-Lys, so in principle the same water.
Nearby communes
The closest to Dammarie-les-Lys on this site.
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=77152
- License
- Licence Ouverte / Open Licence (Etalab)
- Retrieved
- 21 September 2026
- Supply networks
- DAMMARIE LES LYS B - CDA MVS, DAMMARIE LES LYS A - CDA MVS
Water report for Dammarie-les-Lys
Get new PFAS results for Dammarie-les-Lys, with a short explanation. At most one update a week, only when there's something new.
This site is a data project, not an official source. If in doubt, check with your water supplier or local authority.