PFAS in Lumigny-Nesles-Ormeaux's tap water: under 4 ng/L, none of the four main PFAS detected

Last PFAS check: · Source: Hub'eau

PFAS in drinking water

None of the 4 most harmful PFAS detected

Amount found in the water < 4 ng/L the 4 most harmful PFAS (PFAS-4) · the lab's detection limit 20 PFAS looked for, 1 ng/L found in total
Our health benchmark 0.5 ng/L

The lab sees nothing below 4 ng/L, 8 times our benchmark of 0.5 ng/L. Water above our benchmark would pass this check unnoticed.

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.

Sample taken in Pézarches, on the same distribution network as Lumigny-Nesles-Ormeaux (TOUQUIN - SIAEP TOUQUIN). The health authority samples one tap per network; a network carries the same treated water everywhere.

More about this result

The US also limits PFOA and PFOS to 4 ng/L each, per substance.

The lab detects each of the four substances from 1 ng/L upward. None reached that limit, so their total is below 4 ng/L rather than zero.

20 PFAS (see each substance)
PFAS substance Value
Acide perfluoropentanoïque (PFPEA) 0.001 µg/L
Acide perfluoro-octanoïque (PFOA) <0,001 µg/L
Acide perfluorodecane sulfonique (PFDS) <0,001 µg/L
Acide perfluoroheptane sulfonique (PFHpS) <0,002 µg/L
Acide perfluoro tridecanoique (PFTrDA) <0,001 µg/L
Acide sulfonique de perfluorobutane (PFBS) <0,001 µg/L
Acide perfluorohexanoïque (PFHXA) <0,002 µg/L
Acide perfluoro-decanoïque (PFDA) <0,001 µg/L
Acide perfluorobutanoïque (PFBA) <0,002 µg/L
Acide sulfonique de perfluorooctane (PFOS) <0,001 µg/L
Acide perfluoro undecane sulfonique (PFUnDS) <0,002 µg/L
Acide perfluoro-nonanoïque (PFNA) <0,001 µg/L
Perfluorohexane sulfonate (PFHXS) <0,001 µg/L
Acide perfluorododécane sulfonique (PFDoDS) <0,001 µg/L
Acide perfluoroheptanoïque (PFHPA) <0,001 µg/L
Acide perfluoropentane sulfonique (PFPS) <0,001 µg/L
Acide perfluoro undecanoïque (PFUnA) <0,001 µg/L
Acide perfluoro tridecane sulfonique (PFTrDS) <0,005 µg/L
Acide perfluorododécanoique (PFDoDA) <0,001 µg/L
Acide perfluorononane sulfonique (PFNS) <0,002 µg/L

None found. The lab sees nothing below 4 ng/L, so our 0.5 ng/L benchmark cannot be checked.

EU legal limit
1 ng/L sum of 20 PFAS, below the 100 ng/L limit
Last PFAS test
23 July 2026
Water supplier
VEOLIA - GIE ILE DE FRANCE

In Lumigny-Nesles-Ormeaux, none of the 4 most closely watched PFAS (PFAS-4) was detected at the latest PFAS check on 23 July 2026. The total is below 4 ng/L, the sum of the detection limits and 8 times our 0.5 ng/L benchmark. Sum of 20 PFAS: 1 ng/L (0.001 µg/L), below the EU legal limit (100 ng/L). Sampled in Pézarches, on the same network. 4 checks since 27 February 2026: PFAS-4 up to 6 ng/L, sometimes below the detection limit, averaging 5 ng/L over 12 months. Rising on the main network. Source: Hub'eau, Qualité de l'eau potable (Ministère de la Santé / OFB / BRGM).

Details and sources
Water supplier: VEOLIA - GIE ILE DE FRANCE Latest water check: 23 July 2026 Data updated on

PFAS over time in Lumigny-Nesles-Ormeaux

8 PFAS checks since 22 April 2025, from the published measurements. Samples from 2 communes on the same network: it's the same water, so each one applies to Lumigny-Nesles-Ormeaux. Samples come from 2 distribution networks. The trend refers to the network “LUMIGNY NESLES ORMEAUX”.

“Calculated”: PFAS-4 worked out from the four substances in the same sample. The chart, averages and trends use lab-published sums only.

0.5 ng/L6 ng/L027 February 202623 July 2026
PFAS-4 sum per check in ng/L. Dashed line: pfasnearme's 0.5 ng/L benchmark. Hollow dots: below the detection limit.
DatePFAS-4Sum of 20 PFASSampled atNetwork
< 4 ng/L1 ng/LPézarchesTOUQUIN - SIAEP TOUQUIN, TOUQUIN - SIAEP TOUQUIN
5 ng/L14 ng/LGretz-ArmainvilliersLUMIGNY NESLES ORMEAUX
6 ng/L15 ng/LGretz-ArmainvilliersLUMIGNY NESLES ORMEAUX
4 ng/L13 ng/LGretz-ArmainvilliersLUMIGNY NESLES ORMEAUX
< 4 ng/L · calculated< 29 ng/LPézarchesTOUQUIN - SIAEP TOUQUIN, TOUQUIN - SIAEP TOUQUIN
1 ng/L – < 4 ng/L · calculated5 ng/LGretz-ArmainvilliersLUMIGNY NESLES ORMEAUX
2 ng/L – < 4 ng/L · calculated7 ng/LGretz-ArmainvilliersLUMIGNY NESLES ORMEAUX
3 ng/L – < 5 ng/L · calculated8 ng/LGretz-ArmainvilliersLUMIGNY NESLES ORMEAUX

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.

Microbiology: within the limit Chemistry: within the limit

Values to watch

These results are close to their legal limit, or over it.

What was tested Value Limit Status
Nitrate 28.1 mg/L ≤ 50 mg/L within the limit
See all 14 test results
What was tested Value Limit Status
Nitrate 28.1 mg/L ≤ 50 mg/L within the limit
Nitrite <0,01 mg/L ≤ 0.5 mg/L within the limit
Cadmium <1 µg/L ≤ 5 µg/L within the limit
Chromium <5 µg/L ≤ 50 µg/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 7.62 unité pH 6.5–9 unité pH within the limit
Water hardness 29.03 °f no limit for reference
Electrical conductivity 624 µS/cm 200–1,100 µS/cm within the limit
Chloride 32 mg/L ≤ 250 mg/L within the limit
Sulphate 46.4 mg/L ≤ 250 mg/L within the limit
Iron <10 µg/L ≤ 200 µg/L within the limit
Turbidity <0,1 NFU ≤ 2 NFU within the limit

Frequently asked questions

Is tap water in Lumigny-Nesles-Ormeaux safe to drink?

Yes. At the check on 23 July 2026, the tap water in Lumigny-Nesles-Ormeaux 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 trop faibles. Il est recommandé d'avoir des valeurs minimales de 0,10 mg/l sur l’ensemble du réseau de distribution.”

How high are PFAS levels in Lumigny-Nesles-Ormeaux's drinking water?

The total of 20 PFAS ("forever chemicals") was last measured at 1 ng/L. The EU limit is 100 ng/L, so this water is at 1 % of the limit. (below the EU limit)

Does the water in Lumigny-Nesles-Ormeaux also meet the strictest limits in Europe?

As far as this check can tell, yes. None of the four compounds was quantified, so their total is below 4 ng/L, the sum of the laboratory's detection limits, and under Sweden's legal limit of 4 ng/L in force since 2026.

Are PFAS levels rising in Lumigny-Nesles-Ormeaux's tap water?

Yes. On the main network, the PFAS-4 sum rose from 4 ng/L (27 February 2026) to 5 ng/L (17 July 2026) across 3 quantified checks. pfasnearme's benchmark is 0.5 ng/L as an annual mean. These history statistics use laboratory-published sums only.

How hard is the water in Lumigny-Nesles-Ormeaux?

The water hardness in Lumigny-Nesles-Ormeaux is 29 °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 Lumigny-Nesles-Ormeaux, so in principle the same water.

Nearby communes

The closest to Lumigny-Nesles-Ormeaux 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=77264
License
Licence Ouverte / Open Licence (Etalab)
Retrieved
21 September 2026
Supply networks
TOUQUIN - SIAEP TOUQUIN, LUMIGNY NESLES ORMEAUX

This site is a data project, not an official source. If in doubt, check with your water supplier or local authority.