pfasnearmeDrinking water quality from official sources

PFAS in Chambéry'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.

How we chose 0.5 ng/L

More about this result
Legal limit in Sweden (since 2026) within the limit
below this limit < 4 ng/L · Limit: 4 ng/L
Limit in Denmark (since 2021) no verdict
finer than the lab's detection limit < 4 ng/L · Limit: 2 ng/L
Limit in Germany (from 2028) within the limit
below this limit < 4 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 1 ng/L upward. None reached that limit, so their total is below 4 ng/L rather than zero.

EU legal limit within the limit
1 % of the EU limit 0.001 µg/L · Limit: 0.1 µg/L

checked on 30 July 2026

20 PFAS (see each substance)
PFAS substance Value
Acide sulfonique de perfluorobutane (PFBS) 0.001 µg/L
Acide perfluoro tridecane sulfonique (PFTrDS) <0,005 µg/L
Acide perfluoro undecanoïque (PFUnA) <0,001 µg/L
Acide perfluorodecane sulfonique (PFDS) <0,001 µg/L
Acide perfluoro-octanoïque (PFOA) <0,001 µg/L
Acide perfluorododécanoique (PFDoDA) <0,001 µg/L
Acide perfluoropentanoïque (PFPEA) <0,001 µg/L
Acide perfluorobutanoïque (PFBA) <0,002 µg/L
Acide perfluoroheptanoïque (PFHPA) <0,001 µg/L
Acide sulfonique de perfluorooctane (PFOS) <0,001 µg/L
Acide perfluorododécane sulfonique (PFDoDS) <0,001 µg/L
Perfluorohexane sulfonate (PFHXS) <0,001 µg/L
Acide perfluorohexanoïque (PFHXA) <0,002 µg/L
Acide perfluorononane sulfonique (PFNS) <0,002 µg/L
Acide perfluoro-nonanoïque (PFNA) <0,001 µg/L
Acide perfluoroheptane sulfonique (PFHpS) <0,002 µg/L
Acide perfluoro tridecanoique (PFTrDA) <0,001 µg/L
Acide perfluoropentane sulfonique (PFPS) <0,001 µg/L
Acide perfluoro undecane sulfonique (PFUnDS) <0,002 µg/L
Acide perfluoro-decanoïque (PFDA) <0,001 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
30 July 2026
Water supplier
CA DU GRAND CHAMBÉRY

In Chambéry, none of the 4 most closely watched PFAS (PFAS-4) was detected at the latest PFAS check on 30 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). 31 checks since 6 August 2025: PFAS-4 up to 43 ng/L, sometimes below the detection limit, averaging 23.9 ng/L over 12 months. No clear trend. Source: Hub'eau, Qualité de l'eau potable (Ministère de la Santé / OFB / BRGM).

Details and sources
Water supplier: CA DU GRAND CHAMBÉRY Latest water check: 30 July 2026 Data updated on

PFAS over time in Chambéry

63 PFAS checks since 20 February 2024, from the published measurements. Samples from 8 communes on the same network: it's the same water, so each one applies to Chambéry. Samples come from 5 distribution networks. The trend refers to the network “RESEAU DE PASTEUR”.

“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/L43 ng/L06 August 202530 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
13 ng/L27 ng/LLa Motte-ServolexRESEAU DES ILES
22 ng/L41 ng/LChambéryRESEAU DE PASTEUR
< 4 ng/L1 ng/LChambéryRESEAU DE SAINT SATURNIN, RESEAU DE JOPPET
< 4 ng/L< 29 ng/LChalles-les-EauxRESEAU DE SAINT JEAN DE LA PORTE
15 ng/L36 ng/LChambéryRESEAU DE SAINT SATURNIN
14 ng/L28 ng/LCogninRESEAU DES ILES
18 ng/L31 ng/LCogninRESEAU DE PASTEUR
18 ng/L35 ng/LChambéryRESEAU DE PASTEUR
12 ng/L22 ng/LChambéryRESEAU DE SAINT SATURNIN, RESEAU DE JOPPET
14 ng/L26 ng/LLa Motte-ServolexRESEAU DES ILES
20 ng/L36 ng/LCogninRESEAU DE PASTEUR
26 ng/L49 ng/LChambéryRESEAU DE PASTEUR
Show the 51 earlier checks (back to 20 February 2024)
< 4 ng/L< 29 ng/LBarbyRESEAU DE SAINT JEAN DE LA PORTE
14 ng/L34 ng/LBassensRESEAU DE JOPPET
13 ng/L24 ng/LLa Motte-ServolexRESEAU DES ILES
22 ng/L44 ng/LChambéryRESEAU DE PASTEUR
12 ng/L29 ng/LChambéryRESEAU DE SAINT SATURNIN, RESEAU DE JOPPET
19 ng/L35 ng/LChambéryRESEAU DE PASTEUR
18 ng/L38 ng/LChambéryRESEAU DE JOPPET
13 ng/L22 ng/LChambéryRESEAU DES ILES
< 4 ng/L< 29 ng/LSaint-Alban-LeysseRESEAU DE SAINT SATURNIN
13 ng/L31 ng/LChambéryRESEAU DE SAINT SATURNIN, RESEAU DE JOPPET
23 ng/L45 ng/LChambéryRESEAU DE PASTEUR
18 ng/L31 ng/LLa Motte-ServolexRESEAU DES ILES
< 4 ng/L< 29 ng/LSaint-Jean-de-la-PorteRESEAU DE SAINT JEAN DE LA PORTE
11 ng/L25 ng/LChambéryRESEAU DE SAINT SATURNIN, RESEAU DE JOPPET
13 ng/L27 ng/LLa Motte-ServolexRESEAU DES ILES
43 ng/L82 ng/LChambéryRESEAU DE PASTEUR
33 ng/L73 ng/LChambéryRESEAU DE SAINT SATURNIN, RESEAU DE JOPPET
14 ng/L29 ng/LLa Motte-ServolexRESEAU DES ILES
28 ng/L51 ng/LChambéryRESEAU DE PASTEUR
10 ng/L – < 11 ng/L · calculated22 ng/LChambéryRESEAU DE SAINT SATURNIN, RESEAU DE JOPPET
24 ng/L – < 25 ng/L · calculated42 ng/LChambéryRESEAU DE PASTEUR
13 ng/L – < 14 ng/L · calculated25 ng/LLa Motte-ServolexRESEAU DES ILES
14 ng/L – < 15 ng/L · calculated27 ng/LLa Motte-ServolexRESEAU DES ILES
39 ng/L – < 40 ng/L · calculated75 ng/LChambéryRESEAU DE PASTEUR
< 4 ng/L · calculated1 ng/LChambéryRESEAU DE SAINT SATURNIN, RESEAU DE JOPPET
51 ng/L – < 52 ng/L · calculated104 ng/LChambéryRESEAU DE PASTEUR
32 ng/L – < 33 ng/L · calculated72 ng/LChambéryRESEAU DE PASTEUR
39 ng/L – < 40 ng/L · calculated78 ng/LChambéryRESEAU DE PASTEUR
35 ng/L – < 36 ng/L · calculated70 ng/LChambéryRESEAU DE PASTEUR
< 4 ng/L · calculated2 ng/LChambéryRESEAU DE SAINT SATURNIN, RESEAU DE JOPPET
12 ng/L – < 13 ng/L · calculated25 ng/LLa Motte-ServolexRESEAU DES ILES
37 ng/L – < 38 ng/L · calculated74 ng/LChambéryRESEAU DE PASTEUR
39 ng/L – < 40 ng/L · calculated81 ng/LChambéryRESEAU DE PASTEUR
39 ng/L – < 40 ng/L · calculated80 ng/LChambéryRESEAU DE PASTEUR
54 ng/L – < 55 ng/L · calculated110 ng/LChambéryRESEAU DE PASTEUR
8 ng/L – < 9 ng/L · calculated18 ng/LChambéryRESEAU DE SAINT SATURNIN, RESEAU DE JOPPET
21 ng/L – < 22 ng/L · calculated40 ng/LLa Motte-ServolexRESEAU DES ILES
< 4 ng/L · calculated< 1 ng/LChambéryRESEAU DE SAINT SATURNIN, RESEAU DE JOPPET
18 ng/L – < 19 ng/L · calculated31 ng/LLa Motte-ServolexRESEAU DES ILES
39 ng/L – < 40 ng/L · calculated87 ng/LChambéryRESEAU DE SAINT SATURNIN, RESEAU DE JOPPET
41 ng/L – < 42 ng/L · calculated82 ng/LChambéryRESEAU DE PASTEUR
46 ng/L – < 47 ng/L · calculated86 ng/LChambéryRESEAU DE PASTEUR
20 ng/L – < 21 ng/L · calculated35 ng/LLa Motte-ServolexRESEAU DES ILES
37 ng/L – < 38 ng/L · calculated97 ng/LChambéryRESEAU DE SAINT SATURNIN, RESEAU DE JOPPET
44.8 ng/L – < 45.8 ng/L · calculated79.8 ng/LChambéryRESEAU DE PASTEUR
28.9 ng/L – < 29.9 ng/L · calculated62 ng/LChambéryRESEAU DE SAINT SATURNIN, RESEAU DE JOPPET
16.7 ng/L – < 17.7 ng/L · calculated27.4 ng/LLa Motte-ServolexRESEAU DES ILES
34 ng/L – < 35 ng/L · calculated71 ng/LChambéryRESEAU DE PASTEUR
16 ng/L – < 17 ng/L · calculated32 ng/LLa Motte-ServolexRESEAU DES ILES
69 ng/L – < 70 ng/L · calculated131 ng/LChambéryRESEAU DE PASTEUR
37 ng/L – < 38 ng/L · calculated65 ng/LChambéryRESEAU DE SAINT SATURNIN, RESEAU DE JOPPET

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 8.6 mg/L ≤ 50 mg/L within the limit
Nitrite <0,03 mg/L ≤ 0.5 mg/L within the limit
Lead <0,20 µg/L ≤ 10 µg/L within the limit
Copper 0.002 mg(Cu)/L ≤ 2 mg(Cu)/L within the limit
Nickel <1 µg/L ≤ 20 µg/L within the limit
Arsenic <0,50 µg/L ≤ 10 µg/L within the limit
Cadmium <0,10 µg/L ≤ 5 µg/L within the limit
Chromium <0,50 µg/L ≤ 50 µg/L within the limit
Uranium 0.46 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 7.7 unité pH 6.5–9 unité pH within the limit
Water hardness 30.4 °f no limit for reference
Electrical conductivity 575 µS/cm 200–1,100 µS/cm within the limit
Chloride 10.1 mg/L ≤ 250 mg/L within the limit
Sulphate 22.2 mg/L ≤ 250 mg/L within the limit
Sodium 8.73 mg/L ≤ 200 mg/L within the limit
Iron <10 µg/L ≤ 200 µg/L within the limit
Turbidity <0,20 NFU ≤ 2 NFU within the limit

Frequently asked questions

Is tap water in Chambéry safe to drink?

Yes. At the check on 30 July 2026, the tap water in Chambéry 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 Chambéry'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 Chambéry 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 Chambéry's tap water?

No clear trend. Since 20 February 2024, 31 checks have been published; on the main network the PFAS-4 sum ranged between 18 ng/L and 43 ng/L (10 quantified values), at times below the detection limit. pfasnearme only reports a trend from a change of at least 25 % and 1 ng/L. These history statistics use laboratory-published sums only.

How hard is the water in Chambéry?

The water hardness in Chambéry is 30.4 °f (hard). 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 Chambéry, so in principle the same water.

La Motte-Servolex
PFAS-4: 13 ng/L
Cognin
PFAS-4: 22 ng/L
Jacob-Bellecombette
PFAS-4: 22 ng/L
Saint-Baldoph
PFAS-4: 22 ng/L
Saint-Alban-Leysse
PFAS-4: below 4 ng/L
Bassens
PFAS-4: below 4 ng/L
Sonnaz
PFAS-4: below 4 ng/L
La Ravoire
PFAS-4: below 4 ng/L

Nearby communes

The closest to Chambéry on this site.

Barberaz
PFAS-4: below 4 ng/L 4 km away
Saint-Sulpice
PFAS-4: 8 ng/L 5 km away
Voglans
PFAS-4: 15 ng/L 5 km away
Verel-Pragondran
no PFAS result published 6 km away
Barby
PFAS-4: below 4 ng/L 6 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=73065
License
Licence Ouverte / Open Licence (Etalab)
Retrieved
21 September 2026
Supply networks
RESEAU DE SAINT SATURNIN, RESEAU DES ILES, RESEAU DE PASTEUR, RESEAU DE JOPPET, RESEAU DE SAINT JEAN DE LA PORTE

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