pfasnearmeDrinking water quality from official sources

PFAS in tap water in France

34,843 communes covered Latest water check: Data updated on

Official PFAS results for 34,843 communes in France, from Hub'eau. The newest is from 31 July 2026. 5,967 of 32,030 communes with a PFAS-4 value are at or above our 0.5 ng/L benchmark. 2,764 are above 4 ng/L, Sweden's legal limit. The highest PFAS-4 values: Han-lès-Juvigny (669 ng/L), Villy (589 ng/L) and Malandry (469 ng/L). Data updated on 28 September 2026.

34,843Communes
32,030With PFAS-4 value
5,967At/above 0.5 ng/L (18.6 %)
2,764> 4 ng/L (8.6 %)

By region

Area Communes With PFAS-4 value At/above 0.5 ng/L Highest PFAS-4
Auvergne-Rhône-Alpes 4,019 3,705 1,033 Eclose-Badinières, 53 ng/L
Bourgogne-Franche-Comté 3,676 3,184 761 Dole, 61 ng/L
Bretagne 1,202 1,178 403 Paimpol, 59.3 ng/L
Centre-Val de Loire 1,754 1,704 341 Brou, 63 ng/L
Corse 360 217 6 Bastia, 2 ng/L
Grand Est 5,106 4,736 596 Han-lès-Juvigny, 669 ng/L
Guadeloupe 32 30 0 no value
Guyane 22 12 0 no value
Hauts-de-France 3,781 3,509 700 Bantigny, 37 ng/L
Île-de-France 1,266 1,221 537 Misy-sur-Yonne, 43 ng/L
La Réunion 24 24 2 Saint-André, 16 ng/L
Martinique 34 0 0 no value
Mayotte 17 0 0 no value
Normandie 2,642 2,607 503 Dives-sur-Mer, 42.8 ng/L
Nouvelle-Aquitaine 4,293 4,250 86 Compreignac, 22 ng/L
Occitanie 4,443 3,587 460 Aubord, 63 ng/L
Pays de la Loire 1,225 1,122 332 Cugand-la-Bernardière, 18.5 ng/L
Provence-Alpes-Côte d'Azur 945 942 207 Antibes, 35 ng/L

Departments
Area Communes With PFAS-4 value At/above 0.5 ng/L Highest PFAS-4
01 Ain 391 357 176 Saint-Bernard, 38 ng/L
02 Aisne 797 643 85 Prémont, 20 ng/L
2A Corse-du-Sud 124 46 0 no value
2B Haute-Corse 236 171 6 Bastia, 2 ng/L
03 Allier 317 313 137 Cosne-d'Allier, 27 ng/L
04 Alpes-de-Haute-Provence 197 197 26 Ganagobie, 11 ng/L
05 Hautes-Alpes 162 160 2 Chabestan, 1 ng/L
06 Alpes-Maritimes 163 163 12 Antibes, 35 ng/L
07 Ardèche 335 332 114 Davézieux, 22 ng/L
08 Ardennes 446 406 52 Villy, 589 ng/L
09 Ariège 325 222 8 La Bastide-sur-l'Hers, 2 ng/L
10 Aube 431 363 22 La Chapelle-Saint-Luc, 18 ng/L
11 Aude 432 298 56 Canet, 31 ng/L
12 Aveyron 284 259 13 Capdenac-Gare, 2 ng/L
13 Bouches-du-Rhône 119 119 36 Mas-Blanc-des-Alpilles, 31 ng/L
14 Calvados 525 525 143 Dives-sur-Mer, 42.8 ng/L
15 Cantal 250 200 5 Rouffiac, 2.2 ng/L
16 Charente 359 359 8 La Boixe, 6 ng/L
17 Charente-Maritime 462 458 0 no value
18 Cher 286 283 151 Berry-Bouy, 57 ng/L
19 Corrèze 277 269 1 Saint-Martin-la-Méanne, 6.6 ng/L
21 Côte-d'Or 697 585 113 Fénay, 15.3 ng/L
22 Côtes-d'Armor 344 325 144 Paimpol, 59.3 ng/L
23 Creuse 255 255 1 Saint-Yrieix-les-Bois, 3 ng/L
24 Dordogne 503 492 7 Siorac-en-Périgord, 5 ng/L
25 Doubs 562 479 128 Pontarlier, 32 ng/L
26 Drôme 357 283 37 Savasse, 20 ng/L
27 Eure 585 569 141 Vernon, 28.2 ng/L
28 Eure-et-Loir 363 357 65 Brou, 63 ng/L
29 Finistère 277 275 92 Beuzec-Cap-Sizun, 34.1 ng/L
30 Gard 350 273 113 Aubord, 63 ng/L
31 Haute-Garonne 586 448 50 Léguevin, 21 ng/L
32 Gers 458 446 36 Plaisance, 4 ng/L
33 Gironde 534 534 9 Saint-Médard-d'Eyrans, 15 ng/L
34 Hérault 341 274 25 Clapiers, 27 ng/L
35 Ille-et-Vilaine 332 332 88 Bain-de-Bretagne, 14.29 ng/L
36 Indre 241 236 33 Coings, 28.3 ng/L
37 Indre-et-Loire 272 267 38 Tours, 11.1 ng/L
38 Isère 512 484 140 Eclose-Badinières, 53 ng/L
39 Jura 492 414 62 Dole, 61 ng/L
40 Landes 327 312 0 no value
41 Loir-et-Cher 267 255 23 Sargé-sur-Braye, 42 ng/L
42 Loire 320 312 107 Panissières, 21 ng/L
43 Haute-Loire 257 231 0 no value
44 Loire-Atlantique 207 183 116 Prinquiau, 4.5 ng/L
45 Loiret 325 306 31 Briare, 33 ng/L
46 Lot 312 260 26 Parnac, 10 ng/L
47 Lot-et-Garonne 319 319 0 no value
48 Lozère 152 48 0 no value
49 Maine-et-Loire 175 147 99 Montreuil-Bellay, 6.8 ng/L
50 Manche 445 445 56 Cherbourg-en-Cotentin, 26.2 ng/L
51 Marne 610 552 82 Saint-Bon, 18 ng/L
52 Haute-Marne 424 357 5 Villiers-en-Lieu, 11 ng/L
53 Mayenne 240 227 63 Château-Gontier-sur-Mayenne, 2.8 ng/L
54 Meurthe-et-Moselle 591 584 104 Liverdun, 37 ng/L
55 Meuse 493 456 22 Han-lès-Juvigny, 669 ng/L
56 Morbihan 249 246 79 Groix, 14.1 ng/L
57 Moselle 725 725 95 Fameck, 27 ng/L
58 Nièvre 307 282 34 Fourchambault, 8 ng/L
59 Nord 647 617 256 Bantigny, 37 ng/L
60 Oise 679 675 123 Chambly, 21 ng/L
61 Orne 381 379 60 Argentan, 13.8 ng/L
62 Pas-de-Calais 887 810 171 Neuvireuil, 29 ng/L
63 Puy-de-Dôme 463 430 37 Marsac-en-Livradois, 11 ng/L
64 Pyrénées-Atlantiques 545 545 1 Saucède, 2.5 ng/L
65 Hautes-Pyrénées 468 434 25 Vic-en-Bigorre, 8.2 ng/L
66 Pyrénées-Orientales 226 159 20 Le Boulou, 47 ng/L
67 Bas-Rhin 514 492 72 La Wantzenau, 14 ng/L
68 Haut-Rhin 366 362 127 Cernay, 50 ng/L
69 Rhône 265 265 215 Grandris, 41 ng/L
70 Haute-Saône 532 431 84 Arc-lès-Gray, 16 ng/L
71 Saône-et-Loire 563 559 282 Saint-Agnan, 23 ng/L
72 Sarthe 352 351 38 Sablé-sur-Sarthe, 7.6 ng/L
73 Savoie 273 251 18 Cognin, 22 ng/L
74 Haute-Savoie 279 247 47 Vallières-sur-Fier, 33 ng/L
75 Paris 1 1 0 no value
76 Seine-Maritime 706 689 103 Brachy, 21.8 ng/L
77 Seine-et-Marne 507 487 241 Misy-sur-Yonne, 43 ng/L
78 Yvelines 259 248 172 Achères, 37 ng/L
79 Deux-Sèvres 252 249 16 Niort, 4.1 ng/L
80 Somme 771 764 65 Lamotte-Brebière, 13 ng/L
81 Tarn 314 276 57 Saïx, 9 ng/L
82 Tarn-et-Garonne 195 190 31 Verdun-sur-Garonne, 8 ng/L
83 Var 153 152 42 Carqueiranne, 22 ng/L
84 Vaucluse 151 151 89 Avignon, 28 ng/L
85 Vendée 251 214 16 Cugand-la-Bernardière, 18.5 ng/L
86 Vienne 265 264 41 Dissay, 11.9 ng/L
87 Haute-Vienne 195 194 2 Compreignac, 22 ng/L
88 Vosges 506 439 15 Champdray, 61 ng/L
89 Yonne 423 352 38 Charbuy, 21 ng/L
90 Territoire de Belfort 100 82 20 Foussemagne, 10 ng/L
91 Essonne 194 192 43 Boussy-Saint-Antoine, 7 ng/L
92 Hauts-de-Seine 36 36 18 Saint-Cloud, 13 ng/L
93 Seine-Saint-Denis 39 39 1 Le Blanc-Mesnil, 12 ng/L
94 Val-de-Marne 47 47 27 Vitry-sur-Seine, 4 ng/L
95 Val-d'Oise 183 171 35 Ronquerolles, 39 ng/L
971 Guadeloupe 32 30 0 no value
972 Martinique 34 0 0 no value
973 Guyane 22 12 0 no value
974 La Réunion 24 24 2 Saint-André, 16 ng/L
976 Mayotte 17 0 0 no value

The 20 communes with the highest PFAS-4 values in France

Ranked by the measured PFAS-4 sum. Each row links to the commune's page.

#CommunePFAS-4DatePopulation
1 Han-lès-Juvigny · Grand Est 669 ng/L 126
2 Villy · Grand Est 589 ng/L 191
3 Malandry · Grand Est 469 ng/L 80
4 Blagny · Grand Est 431 ng/L 1,078
5 Linay · Grand Est 431 ng/L 220
6 Juvigny-sur-Loison · Grand Est 280 ng/L 239
7 Louppy-sur-Loison · Grand Est 200 ng/L 124
8 Remoiville · Grand Est 80 ng/L 128
9 Brou · Centre-Val de Loire 63 ng/L 3,230
10 Aubord · Occitanie 63 ng/L 2,253
11 Yèvres · Centre-Val de Loire 63 ng/L 1,677
12 Gohory · Centre-Val de Loire 63 ng/L 319
13 Dole · Bourgogne-Franche-Comté 61 ng/L 23,840
14 Foucherans · Bourgogne-Franche-Comté 61 ng/L 2,284
15 Choisey · Bourgogne-Franche-Comté 61 ng/L 1,021
16 Parcey · Bourgogne-Franche-Comté 61 ng/L 993
17 Villette-lès-Dole · Bourgogne-Franche-Comté 61 ng/L 806
18 Crissey · Bourgogne-Franche-Comté 61 ng/L 687
19 Champdray · Grand Est 61 ng/L 192
20 Paimpol · Bretagne 59.3 ng/L 7,341

The 20 lowest quantified PFAS-4 values in France

Only values above the detection limit are ranked. In 26,036 communes none of the four substances was detected.

#CommunePFAS-4DatePopulation
1 La Bouëxière · Bretagne at least 0.47 ng/L 4,667
2 Pocé-les-Bois · Bretagne at least 0.47 ng/L 1,312
3 Dourdain · Bretagne at least 0.47 ng/L 1,237
4 Montreuil-sous-Pérouse · Bretagne at least 0.47 ng/L 1,043
5 Marpiré · Bretagne at least 0.47 ng/L 1,023
6 Saint-Aubin-des-Landes · Bretagne at least 0.47 ng/L 917
7 Landavran · Bretagne at least 0.47 ng/L 674
8 Champeaux · Bretagne at least 0.47 ng/L 505
9 Hennebont · Bretagne at least 0.5 ng/L 15,910
10 Pontivy · Bretagne at least 0.5 ng/L 14,640
11 Caudan · Bretagne at least 0.5 ng/L 7,206
12 Kervignac · Bretagne at least 0.5 ng/L 7,204
13 Inzinzac-Lochrist · Bretagne at least 0.5 ng/L 6,691
14 Riantec · Bretagne at least 0.5 ng/L 5,865
15 Locmiquélic · Bretagne at least 0.5 ng/L 4,093
16 Landévant · Bretagne at least 0.5 ng/L 4,056
17 Merlevenez · Bretagne at least 0.5 ng/L 3,174
18 Arc-sur-Tille · Bourgogne-Franche-Comté at least 0.5 ng/L 2,584
19 Nostang · Bretagne at least 0.5 ng/L 1,676
20 Sainte-Hélène · Bretagne at least 0.5 ng/L 1,303

How to read this page

PFAS-4 is the sum of PFOA, PFOS, PFNA and PFHxS, the four PFAS that EFSA judges most harmful. Values are in nanograms per litre (ng/L); 1 ng/L = 0.001 µg/L.

Three reference values: 0.5 ng/L, our health benchmark (a proposal, not a legal limit); 4 ng/L, Sweden's legal limit since 2026 and the strictest PFAS-4 limit in Europe; 100 ng/L for the sum of 20 PFAS, the EU legal limit since January 2026.

Labs count undetected substances as zero, so a PFAS-4 sum is a minimum. A commune only counts as "at or above 0.5 ng/L" when the measurement proves it, and a non-detect only counts as below when the detection limits allow it.

Each value is the latest official check of one tap on the commune's distribution network (ARS health control, published through Hub'eau). The sampled tap may stand in a neighbouring commune on the same network; the commune's page then names it.

How we chose 0.5 ng/L

Legal limits and dates in France

France applies the EU limit of 100 ng/L for the sum of 20 PFAS (Directive 2020/2184, transposed by the decree of 30 December 2022), binding since 12 January 2026. There is no French legal limit for PFAS-4; this site compares every result with Sweden's 4 ng/L limit and with its own 0.5 ng/L benchmark.

Sources, regulators and licences

The regional health agencies (ARS) check the distributed water on behalf of the Ministry of Health; the results are published through Hub'eau (Ministère de la Santé / OFB / BRGM) under the Etalab open licence.

Frequently asked questions

How much PFAS is in tap water in France?

This page summarises the official PFAS results in the tap water of 34,843 communes in France, published by Hub'eau. The measured value is PFAS-4, the sum of PFOA, PFOS, PFNA and PFHxS, in nanograms per litre (ng/L). The most recent result dates from 31 July 2026. 32,030 of the 34,843 communes have a PFAS-4 value. 5,967 of them (18.6 %) are at or above 0.5 ng/L, this site's health benchmark, and 2,764 (8.6 %) are above 4 ng/L, the strictest legal PFAS-4 limit in force in Europe (Sweden, since 2026). 2,813 communes have no published PFAS-4 result. In 22 communes the sum of 20 PFAS was above the EU legal limit of 100 ng/L.

Which commune in France has the highest PFAS-4 value?

Han-lès-Juvigny: 669 ng/L (1,338× the 0.5 ng/L benchmark), result of 1 June 2026. Source: Hub'eau, Qualité de l'eau potable (Ministère de la Santé / OFB / BRGM). The 20 highest values are in the table above.

Which PFAS limits apply in France?

France applies the EU limit of 100 ng/L for the sum of 20 PFAS (Directive 2020/2184, transposed by the decree of 30 December 2022), binding since 12 January 2026. There is no French legal limit for PFAS-4; this site compares every result with Sweden's 4 ng/L limit and with its own 0.5 ng/L benchmark.

Is tap water in France safe to drink?

The regional health agencies (ARS) check the distributed water on behalf of the Ministry of Health; the results are published through Hub'eau (Ministère de la Santé / OFB / BRGM) under the Etalab open licence. Against the EU limit of 100 ng/L for the sum of 20 PFAS, the water is non-compliant in 22 of the covered communes. Against Sweden's stricter 4 ng/L PFAS-4 limit, 2,764 communes would be above, and 5,967 against this site's 0.5 ng/L benchmark. What a result means for you is explained on your commune's page.

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). Last retrieved on 28 September 2026; the site refreshes the data weekly, and the latest result date on each commune page is authoritative.

How do I cite these figures?

Name the commune, the sample date shown on the page, the source and the page URL. The "Source and citation" block below and on every commune page contains a ready-made citation sentence; each source's licence is listed next to it.

Data and downloads

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