pfasnearmeDrinking water quality from official sources

PFAS in Noisy-le-Grand's tap water: under 8 ng/L, none of the four main PFAS detected

Last PFAS check: · Source: Hub'eau

PFAS in drinking water

No PFAS detected

Amount found in the water < 8 ng/L the 4 most harmful PFAS (PFAS-4) · the lab's detection limit 20 PFAS looked for, none found
Our health benchmark 0.5 ng/L

The lab sees nothing below 8 ng/L, 16 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.

How we chose 0.5 ng/L

Sample taken in Aulnay-sous-Bois, on the same distribution network as Noisy-le-Grand (UDI SEDIF NEUILLY). The health authority samples one tap per network; a network carries the same treated water everywhere.

More about this result
Legal limit in Sweden (since 2026) no verdict
finer than the lab's detection limit < 8 ng/L · Limit: 4 ng/L
Limit in Denmark (since 2021) no verdict
finer than the lab's detection limit < 8 ng/L · Limit: 2 ng/L
Limit in Germany (from 2028) within the limit
below this limit < 8 ng/L · Limit: 20 ng/L

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

The lab detects each of the four substances from 2 ng/L upward. None reached that limit, so their total is below 8 ng/L rather than zero.

EU legal limit within the limit
under 5 % of the EU limit <0,005 µg/L · Limit: 0.1 µg/L

checked on 27 July 2026

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

None found. The lab sees nothing below 8 ng/L, so our 0.5 ng/L benchmark cannot be checked.

EU legal limit
none detected sum of 20 PFAS below the detection limit, limit 100 ng/L
Last PFAS test
27 July 2026
Water supplier
FRANCILIANE

In Noisy-le-Grand, none of the 4 most closely watched PFAS (PFAS-4) was detected at the latest PFAS check on 27 July 2026. The total is below 8 ng/L, the sum of the detection limits and 16 times our 0.5 ng/L benchmark. Sum of 20 PFAS: <0,005 µg/L, below the EU legal limit (100 ng/L). Sampled in Aulnay-sous-Bois, on the same network. 71 checks since 2 April 2025: sum of 20 PFAS up to 13 ng/L, sometimes below the detection limit. Source: Hub'eau, Qualité de l'eau potable (Ministère de la Santé / OFB / BRGM).

Details and sources
Water supplier: FRANCILIANE Latest water check: 27 July 2026 Data updated on

PFAS over time in Noisy-le-Grand

71 PFAS checks since 2 April 2025, from the published measurements. Samples from 6 communes on the same network: it's the same water, so each one applies to Noisy-le-Grand. Samples come from 3 distribution networks. The trend refers to the network “UDI SEDIF NEUILLY”.

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

13 ng/L02 April 202527 July 2026
Laboratory-published sum of 20 PFAS per check in ng/L. Hollow dots: below the detection limit. Calculated PFAS-4 values are listed in the table.
DatePFAS-4Sum of 20 PFASSampled atNetwork
< 8 ng/L · calculated< 5 ng/LAulnay-sous-BoisUDI SEDIF NEUILLY
2 ng/L – < 8 ng/L · calculated2 ng/LNoisy-le-GrandUDI SEDIF NEUILLY
2 ng/L – < 8 ng/L · calculated2 ng/LNoisy-le-GrandUDI SEDIF NEUILLY
5 ng/L – < 9 ng/L · calculated5 ng/LAubervilliersUDI SEDIF NEUILLY
< 8 ng/L · calculated< 5 ng/LL'Île-Saint-DenisUDI SEDIF NEUILLY
< 8 ng/L · calculated< 5 ng/LNoisy-le-GrandUDI SEDIF NEUILLY
7 ng/L – < 11 ng/L · calculated7 ng/LDrancyUDI SEDIF NEUILLY
< 8 ng/L · calculated< 5 ng/LNoisy-le-Grand077001159, 077001159
< 8 ng/L · calculated< 5 ng/LNoisy-le-GrandUDI SEDIF NEUILLY
< 8 ng/L · calculated< 5 ng/LNoisy-le-Grand094000070
< 8 ng/L · calculated< 5 ng/LSaint-DenisUDI SEDIF NEUILLY
< 8 ng/L · calculated< 5 ng/LNoisy-le-Grand077001159, 077001159
Show the 59 earlier checks (back to 2 April 2025)
< 8 ng/L · calculated< 5 ng/LNoisy-le-GrandUDI SEDIF NEUILLY
< 8 ng/L · calculated< 5 ng/LNoisy-le-Grand094000070
< 8 ng/L · calculated6 ng/LNoisy-le-Grand077001159, 077001159
< 8 ng/L · calculated6 ng/LNoisy-le-GrandUDI SEDIF NEUILLY
< 8 ng/L · calculated6 ng/LNoisy-le-Grand094000070
< 8 ng/L · calculated< 5 ng/LNoisy-le-Grand077001159, 077001159
< 8 ng/L · calculated< 5 ng/LNoisy-le-GrandUDI SEDIF NEUILLY
< 8 ng/L · calculated< 5 ng/LNoisy-le-Grand094000070
< 8 ng/L · calculated< 5 ng/LNoisy-le-Grand077001159, 077001159
< 8 ng/L · calculated< 5 ng/LNoisy-le-GrandUDI SEDIF NEUILLY
< 8 ng/L · calculated< 5 ng/LNoisy-le-Grand094000070
< 8 ng/L · calculated< 5 ng/LNoisy-le-Grand077001159, 077001159
< 8 ng/L · calculated< 5 ng/LNoisy-le-GrandUDI SEDIF NEUILLY
< 8 ng/L · calculated< 5 ng/LNoisy-le-Grand094000070
< 8 ng/L · calculated< 5 ng/LNoisy-le-Grand077001159, 077001159
< 8 ng/L · calculated< 5 ng/LNoisy-le-GrandUDI SEDIF NEUILLY
< 8 ng/L · calculated< 5 ng/LNoisy-le-Grand094000070
< 8 ng/L · calculated4 ng/LNoisy-le-Grand077001159, 077001159
< 8 ng/L · calculated4 ng/LNoisy-le-GrandUDI SEDIF NEUILLY
< 8 ng/L · calculated4 ng/LNoisy-le-Grand094000070
< 8 ng/L · calculated4 ng/LNoisy-le-Grand077001159, 077001159
< 8 ng/L · calculated4 ng/LNoisy-le-GrandUDI SEDIF NEUILLY
< 8 ng/L · calculated4 ng/LNoisy-le-Grand094000070
< 8 ng/L · calculated< 5 ng/LNoisy-le-Grand077001159, 077001159
< 8 ng/L · calculated< 5 ng/LNoisy-le-GrandUDI SEDIF NEUILLY
< 8 ng/L · calculated< 5 ng/LNoisy-le-Grand094000070
< 8 ng/L · calculated13 ng/LNoisy-le-Grand077001159, 077001159
< 8 ng/L · calculated13 ng/LNoisy-le-GrandUDI SEDIF NEUILLY
< 8 ng/L · calculated13 ng/LNoisy-le-Grand094000070
< 8 ng/L · calculated< 5 ng/LNoisy-le-Grand077001159, 077001159
< 8 ng/L · calculated< 5 ng/LNoisy-le-GrandUDI SEDIF NEUILLY
< 8 ng/L · calculated< 5 ng/LNoisy-le-Grand094000070
< 8 ng/L · calculated6 ng/LNoisy-le-Grand077001159, 077001159
< 8 ng/L · calculated6 ng/LNoisy-le-GrandUDI SEDIF NEUILLY
< 8 ng/L · calculated6 ng/LNoisy-le-Grand094000070
< 8 ng/L · calculated< 5 ng/LNoisy-le-Grand077001159, 077001159
< 8 ng/L · calculated< 5 ng/LNoisy-le-GrandUDI SEDIF NEUILLY
< 8 ng/L · calculated< 5 ng/LNoisy-le-Grand094000070
< 8 ng/L · calculated< 5 ng/LNoisy-le-Grand077001159, 077001159
< 8 ng/L · calculated< 5 ng/LNoisy-le-GrandUDI SEDIF NEUILLY
< 8 ng/L · calculated< 5 ng/LNoisy-le-Grand094000070
< 8 ng/L · calculated< 5 ng/LNoisy-le-Grand077001159, 077001159
< 8 ng/L · calculated< 5 ng/LNoisy-le-GrandUDI SEDIF NEUILLY
< 8 ng/L · calculated< 5 ng/LNoisy-le-Grand094000070
< 8 ng/L · calculated< 5 ng/LNoisy-le-Grand077001159, 077001159
< 8 ng/L · calculated< 5 ng/LNoisy-le-GrandUDI SEDIF NEUILLY
< 8 ng/L · calculated< 5 ng/LNoisy-le-Grand094000070
< 8 ng/L · calculated< 5 ng/LNoisy-le-Grand077001159, 077001159
< 8 ng/L · calculated< 5 ng/LNoisy-le-GrandUDI SEDIF NEUILLY
< 8 ng/L · calculated< 5 ng/LNoisy-le-Grand094000070
< 8 ng/L · calculated< 5 ng/LNoisy-le-Grand077001159, 077001159
< 8 ng/L · calculated< 5 ng/LNoisy-le-GrandUDI SEDIF NEUILLY
< 8 ng/L · calculated< 5 ng/LNoisy-le-Grand094000070
< 8 ng/L · calculated< 5 ng/LNoisy-le-Grand077001159, 077001159
< 8 ng/L · calculated< 5 ng/LNoisy-le-GrandUDI SEDIF NEUILLY
< 8 ng/L · calculated< 5 ng/LNoisy-le-Grand094000070
< 8 ng/L · calculated< 5 ng/LNoisy-le-Grand077001159, 077001159
< 8 ng/L · calculated< 5 ng/LNoisy-le-GrandUDI SEDIF NEUILLY
< 8 ng/L · calculated< 5 ng/LNoisy-le-Grand094000070

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
See all 21 test results
What was tested Value Limit Status
Nitrate 12.9 mg/L ≤ 50 mg/L within the limit
Nitrite 0.061 mg/L ≤ 0.5 mg/L within the limit
Lead 0.2 µg/L ≤ 10 µg/L within the limit
Copper 0.0526 mg(Cu)/L ≤ 2 mg(Cu)/L within the limit
Nickel 1.5 µg/L ≤ 20 µg/L within the limit
Arsenic 0.75 µg/L ≤ 10 µg/L within the limit
Cadmium <1,00 µg/L ≤ 5 µg/L within the limit
Chromium <6,00 µg/L ≤ 50 µg/L within the limit
Uranium 0.54 µg/L ≤ 30 µg/L within the limit
Fluoride 0.23 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 7.6 unité pH 6.5–9 unité pH within the limit
Water hardness 27.2 °f no limit for reference
Electrical conductivity 515 µS/cm 200–1,100 µS/cm within the limit
Chloride 34.3 mg/L ≤ 250 mg/L within the limit
Sulphate 56.6 mg/L ≤ 250 mg/L within the limit
Sodium 16 mg/L ≤ 200 mg/L within the limit
Iron <20,0 µg/L ≤ 200 µg/L within the limit
Turbidity <0,10 NFU ≤ 2 NFU within the limit

Frequently asked questions

Is tap water in Noisy-le-Grand safe to drink?

Yes. At the check on 27 July 2026, the tap water in Noisy-le-Grand was within every limit tested. “Eau d'alimentation conforme aux exigences de qualité en vigueur pour l'ensemble des paramètres mesurés.”

How high are PFAS levels in Noisy-le-Grand's drinking water?

At the latest check the total of 20 PFAS ("forever chemicals") was below the laboratory's reporting limit of 5 ng/L. The EU limit is 100 ng/L, so this water is under 5 % of the limit. (below the EU limit)

Does the water in Noisy-le-Grand also meet the strictest limits in Europe?

The check cannot say. None of the four compounds was quantified, but the laboratory's detection limits add up to 8 ng/L, above Sweden's legal limit of 4 ng/L in force since 2026, so a value between the two would go unnoticed.

Are PFAS levels rising in Noisy-le-Grand's tap water?

Calculated PFAS-4 values are listed in the table. The chart uses laboratory-published sum-of-20 results; there are too few laboratory-published PFAS-4 sums for the existing trend calculation.

How hard is the water in Noisy-le-Grand?

The water hardness in Noisy-le-Grand is 27.2 °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 Noisy-le-Grand, so in principle the same water.

Saint-Denis
PFAS-4: below 8 ng/L
Aubervilliers
PFAS-4: below 8 ng/L
Aulnay-sous-Bois
PFAS-4: below 8 ng/L
Drancy
PFAS-4: below 8 ng/L
Saint-Ouen-sur-Seine
PFAS-4: below 8 ng/L
Sevran
PFAS-4: below 8 ng/L
Livry-Gargan
PFAS-4: below 8 ng/L
Rosny-sous-Bois
PFAS-4: below 8 ng/L

Nearby communes

The closest to Noisy-le-Grand on this site.

Villiers-sur-Marne
PFAS-4: below 8 ng/L 1 km away
Bry-sur-Marne
PFAS-4: below 8 ng/L 3 km away
Champigny-sur-Marne
PFAS-4: below 8 ng/L 3 km away
Le Plessis-Trévise
PFAS-4: 3 ng/L 3 km away
Champs-sur-Marne
PFAS-4: 6 ng/L 3 km away

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=93051
License
Licence Ouverte / Open Licence (Etalab)
Retrieved
21 September 2026
Supply networks
UDI SEDIF NEUILLY

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