Bretagne · Département 29
Finistère
277 communes suivies
250 stations rivières
16 stations nappes
Mis à jour le 07/09/2026 à 17:29
95
/100
Bonne qualité
Eau potable
Eau potable
Source : ARS via Hub'Eau · 277 communes
≥80
50-79
<50
ARGOL100/100
PesticidesTHM
ARZANO100/100
PlombPesticidesTHM
AUDIERNE100/100
PlombTHM
BANNALEC100/100
PlombPesticidesTHM
BAYE100/100
THM
BENODET100/100
PlombPesticidesTHM
BERRIEN100/100
PesticidesTHM
BEUZEC-CAP-SIZUN83/100
PlombPesticidesTHM
BODILIS100/100
THM
BOHARS75/100
PlombTHM
BOLAZEC100/100
PesticidesTHM
BOTMEUR100/100
PesticidesTHM
BOTSORHEL100/100
PlombPesticidesTHM
BOURG-BLANC100/100
PesticidesTHM
BRASPARTS100/100
PlombPesticidesTHM
BRELES100/100
THM
BRENNILIS100/100
PesticidesTHM
BREST100/100
PlombPesticidesTHM
BRIEC83/100
PlombPesticidesTHM
CAMARET-SUR-MER100/100
PlombPesticidesTHM
CARANTEC100/100
THM
CARHAIX-PLOUGUER100/100
PlombPesticidesTHM
CAST100/100
PlombPesticidesTHM
CHATEAULIN83/100
PlombPesticidesTHM
CHATEAUNEUF-DU-FAOU100/100
PlombPesticidesTHM
CLEDEN-CAP-SIZUN75/100
PlombTHM
CLEDEN-POHER100/100
THM
CLEDER100/100
THM
CLOHARS-CARNOET100/100
PlombPesticidesTHM
CLOHARS-FOUESNANT100/100
PesticidesTHM
CLOITRE-PLEYBEN (LE)100/100
THM
CLOITRE-SAINT-THEGONNEC (LE)75/100
PesticidesTHM
COAT-MEAL100/100
PesticidesTHM
COLLOREC100/100
THM
COMBRIT50/100
THM
COMMANA100/100
PesticidesTHM
CONCARNEAU100/100
PlombPesticidesTHM
CONFORT-MEILARS100/100
THM
CONQUET (LE)67/100
PlombPesticidesTHM
CORAY100/100
PlombPesticidesTHM
CROZON83/100
PlombPesticidesTHM
DAOULAS100/100
PlombTHM
DINEAULT100/100
PlombPesticidesTHM
DIRINON100/100
THM
DOUARNENEZ100/100
PlombPesticidesTHM
DRENNEC (LE)100/100
THM
EDERN100/100
PesticidesTHM
ELLIANT100/100
PlombPesticidesTHM
ERGUE-GABERIC100/100
PlombPesticidesTHM
FAOU (LE)100/100
PlombTHM
FEUILLEE (LA)100/100
PesticidesTHM
FOLGOET (LE)100/100
THM
FOREST-LANDERNEAU (LA)100/100
PlombPesticidesTHM
FORET-FOUESNANT (LA)100/100
PlombTHM
FOUESNANT100/100
PlombPesticidesTHM
GARLAN100/100
THM
GOUESNACH100/100
THM
GOUESNOU75/100
PlombTHM
GOUEZEC100/100
PesticidesTHM
GOULIEN75/100
PesticidesTHM
GOULVEN100/100
THM
GOURLIZON100/100
THM
GUENGAT100/100
PlombPesticidesTHM
GUERLESQUIN100/100
PlombPesticidesTHM
GUICLAN100/100
THM
GUILER-SUR-GOYEN100/100
THM
GUILERS100/100
PlombTHM
GUILLIGOMARC'H100/100
PlombPesticidesTHM
GUILVINEC75/100
PlombTHM
GUIMAEC100/100
THM
GUIMILIAU100/100
PlombTHM
GUIPAVAS100/100
THM
GUISSENY100/100
THM
HANVEC100/100
PesticidesTHM
HENVIC100/100
THM
HOPITAL-CAMFROUT100/100
PlombPesticidesTHM
HUELGOAT100/100
PesticidesTHM
ILE-DE-BATZ100/100
THM
ILE-DE-SEIN100/100
PesticidesTHM
ILE-MOLENE100/100
PesticidesTHM
ILE-TUDY100/100
THM
IRVILLAC100/100
PlombPesticidesTHM
JUCH (LE)100/100
PesticidesTHM
KERGLOFF50/100
THM
KERLAZ83/100
PlombPesticidesTHM
KERLOUAN100/100
THM
KERNILIS100/100
PesticidesTHM
KERNOUES100/100
THM
KERSAINT-PLABENNEC100/100
PlombPesticidesTHM
LAMPAUL-GUIMILIAU100/100
THM
LAMPAUL-PLOUARZEL100/100
THM
LAMPAUL-PLOUDALMEZEAU100/100
PlombPesticidesTHM
LANARVILY100/100
THM
LANDEDA100/100
PesticidesTHM
LANDELEAU83/100
PlombPesticidesTHM
LANDERNEAU100/100
PlombPesticidesTHM
LANDEVENNEC50/100
THM
LANDIVISIAU100/100
PlombTHM
LANDREVARZEC100/100
PesticidesTHM
LANDUDAL100/100
PlombPesticidesTHM
LANDUDEC100/100
PesticidesTHM
LANDUNVEZ100/100
PesticidesTHM
LANGOLEN100/100
PesticidesTHM
LANHOUARNEAU100/100
THM
LANILDUT50/100
THM
LANMEUR100/100
THM
LANNEANOU100/100
PlombPesticidesTHM
LANNEDERN100/100
PlombTHM
LANNEUFFRET100/100
THM
LANNILIS100/100
PlombPesticidesTHM
LANRIVOARE100/100
PlombTHM
LANVEOC50/100
THM
LAZ100/100
PlombPesticidesTHM
LENNON100/100
THM
LESNEVEN100/100
PlombPesticidesTHM
LEUHAN100/100
PlombPesticidesTHM
LOC-BREVALAIRE100/100
THM
LOC-EGUINER100/100
THM
LOCMARIA-PLOUZANE75/100
PesticidesTHM
LOCMELAR100/100
PesticidesTHM
LOCQUENOLE100/100
THM
LOCQUIREC100/100
THM
LOCRONAN75/100
PesticidesTHM
LOCTUDY100/100
THM
LOCUNOLE100/100
THM
LOGONNA-DAOULAS100/100
PesticidesTHM
LOPEREC100/100
PlombPesticidesTHM
LOPERHET100/100
PlombPesticidesTHM
LOQUEFFRET100/100
PlombPesticidesTHM
LOTHEY100/100
PesticidesTHM
MAHALON100/100
PlombPesticidesTHM
MARTYRE (LA)100/100
THM
MELGVEN100/100
PlombPesticidesTHM
MELLAC100/100
PlombPesticidesTHM
MESPAUL100/100
THM
MILIZAC-GUIPRONVEL100/100
PlombPesticidesTHM
MOELAN-SUR-MER100/100
PlombPesticidesTHM
MORLAIX100/100
PesticidesTHM
MOTREFF100/100
PlombPesticidesTHM
NEVEZ100/100
THM
OUESSANT100/100
PesticidesTHM
PENCRAN100/100
THM
PENMARCH100/100
THM
PEUMERIT100/100
THM
PLABENNEC100/100
PlombPesticidesTHM
PLEUVEN100/100
PlombPesticidesTHM
PLEYBEN100/100
PesticidesTHM
PLEYBER-CHRIST100/100
THM
PLOBANNALEC-LESCONIL50/100
THM
PLOEVEN50/100
THM
PLOGASTEL-SAINT-GERMAIN100/100
PesticidesTHM
PLOGOFF50/100
THM
PLOGONNEC100/100
PlombPesticidesTHM
PLOMELIN100/100
PesticidesTHM
PLOMEUR50/100
THM
PLOMODIERN100/100
PlombPesticidesTHM
PLONEIS100/100
PesticidesTHM
PLONEOUR-LANVERN100/100
PlombPesticidesTHM
PLONEVEZ-DU-FAOU100/100
PlombTHM
PLONEVEZ-PORZAY100/100
PlombPesticidesTHM
PLOUARZEL50/100
THM
PLOUDALMEZEAU100/100
PlombPesticidesTHM
PLOUDANIEL100/100
PesticidesTHM
PLOUDIRY100/100
PesticidesTHM
PLOUEDERN100/100
PesticidesTHM
PLOUEGAT-GUERAND100/100
THM
PLOUEGAT-MOYSAN100/100
PesticidesTHM
PLOUENAN100/100
PlombPesticidesTHM
PLOUESCAT100/100
THM
PLOUEZOC'H100/100
PesticidesTHM
PLOUGAR100/100
THM
PLOUGASNOU100/100
PlombTHM
PLOUGASTEL-DAOULAS100/100
PlombPesticidesTHM
PLOUGONVELIN50/100
THM
PLOUGONVEN100/100
PesticidesTHM
PLOUGOULM100/100
THM
PLOUGOURVEST100/100
THM
PLOUGUERNEAU100/100
PlombPesticidesTHM
PLOUGUIN100/100
PesticidesTHM
PLOUHINEC100/100
PlombPesticidesTHM
PLOUIDER100/100
THM
PLOUIGNEAU100/100
PlombPesticidesTHM
PLOUMOGUER50/100
THM
PLOUNEOUR-BRIGNOGAN-PLAGES100/100
PlombPesticidesTHM
PLOUNEOUR-MENEZ100/100
PlombPesticidesTHM
PLOUNEVENTER100/100
PlombPesticidesTHM
PLOUNEVEZ-LOCHRIST100/100
PesticidesTHM
PLOUNEVEZEL100/100
PlombPesticidesTHM
PLOURIN83/100
PlombPesticidesTHM
PLOURIN-LES-MORLAIX100/100
PesticidesTHM
PLOUVIEN100/100
PesticidesTHM
PLOUVORN100/100
PesticidesTHM
PLOUYE100/100
PesticidesTHM
PLOUZANE50/100
THM
PLOUZEVEDE100/100
THM
PLOVAN100/100
THM
PLOZEVET83/100
PlombPesticidesTHM
PLUGUFFAN100/100
PesticidesTHM
PONT-AVEN100/100
PlombPesticidesTHM
PONT-CROIX83/100
PlombPesticidesTHM
PONT-DE-BUIS-LES-QUIMERCH100/100
PlombPesticidesTHM
PONT-L'ABBE100/100
PlombPesticidesTHM
PORSPODER50/100
THM
PORT-LAUNAY100/100
THM
POULDERGAT100/100
PesticidesTHM
POULDREUZIC50/100
THM
POULLAN-SUR-MER75/100
PesticidesTHM
POULLAOUEN100/100
PlombPesticidesTHM
PRIMELIN100/100
THM
QUEMENEVEN100/100
PlombPesticidesTHM
QUERRIEN100/100
PesticidesTHM
QUIMPER100/100
PlombPesticidesTHM
QUIMPERLE100/100
PlombPesticidesTHM
REDENE100/100
PlombPesticidesTHM
RELECQ-KERHUON (LE)83/100
PlombPesticidesTHM
RIEC-SUR-BELON100/100
PesticidesTHM
ROCHE-MAURICE (LA)100/100
THM
ROSCANVEL100/100
THM
ROSCOFF100/100
THM
ROSNOEN83/100
PlombPesticidesTHM
ROSPORDEN100/100
PlombPesticidesTHM
SAINT-COULITZ100/100
THM
SAINT-DERRIEN100/100
THM
SAINT-DIVY100/100
PesticidesTHM
SAINT-ELOY100/100
PesticidesTHM
SAINT-EVARZEC83/100
PlombPesticidesTHM
SAINT-FREGANT100/100
THM
SAINT-GOAZEC100/100
PlombPesticidesTHM
SAINT-HERNIN100/100
PesticidesTHM
SAINT-JEAN-DU-DOIGT100/100
THM
SAINT-JEAN-TROLIMON50/100
THM
SAINT-MARTIN-DES-CHAMPS100/100
THM
SAINT-MEEN100/100
THM
SAINT-NIC100/100
PesticidesTHM
SAINT-PABU100/100
PesticidesTHM
SAINT-POL-DE-LEON100/100
PlombPesticidesTHM
SAINT-RENAN83/100
PlombPesticidesTHM
SAINT-RIVOAL100/100
PesticidesTHM
SAINT-SAUVEUR100/100
PlombTHM
SAINT-SEGAL100/100
PesticidesTHM
SAINT-SERVAIS100/100
THM
SAINT-THEGONNEC LOC-EGUINER100/100
PesticidesTHM
SAINT-THOIS100/100
PlombPesticidesTHM
SAINT-THONAN100/100
THM
SAINT-THURIEN100/100
PlombPesticidesTHM
SAINT-URBAIN100/100
PesticidesTHM
SAINT-VOUGAY100/100
THM
SAINT-YVI100/100
PlombPesticidesTHM
SAINTE-SEVE100/100
THM
SANTEC100/100
THM
SCAER100/100
PesticidesTHM
SCRIGNAC100/100
PesticidesTHM
SIBIRIL100/100
THM
SIZUN100/100
PlombPesticidesTHM
SPEZET100/100
PesticidesTHM
TAULE100/100
PlombPesticidesTHM
TELGRUC-SUR-MER100/100
THM
TOURCH83/100
PlombPesticidesTHM
TREBABU100/100
PesticidesTHM
TREFFIAGAT50/100
THM
TREFLAOUENAN100/100
THM
TREFLEVENEZ100/100
PesticidesTHM
TREFLEZ100/100
PlombPesticidesTHM
TREGARANTEC100/100
THM
TREGARVAN100/100
PlombPesticidesTHM
TREGLONOU100/100
THM
TREGOUREZ100/100
PlombPesticidesTHM
TREGUENNEC100/100
THM
TREGUNC100/100
THM
TREHOU (LE)50/100
THM
TREMAOUEZAN100/100
THM
TREMEOC100/100
THM
TREMEVEN100/100
PesticidesTHM
TREOGAT50/100
THM
TREOUERGAT100/100
THM
TREVOUX (LE)100/100
THM
TREZILIDE100/100
THM
Rivières
Source : Hub'Eau qualité_rivieres · 250 stations
MIGNONNE à IRVILLAC75/100
| pH | 7.3pH | 30/04/2026 | |
| Conductivité | 11.0µS/cm | 30/04/2026 | |
| MES | 196.0mg/L | 30/04/2026 | |
| Temp. eau | 14.1°C | 30/04/2026 | |
| Ammonium | 2.0mg/L | 30/04/2026 |
AULNE à CHATEAULIN69/100
| Temp. eau | 17.9°C | 30/04/2026 | |
| Phosphore | 0.017mg/L | 30/04/2026 | |
| Conductivité | 9.9µS/cm | 30/04/2026 | |
| pH | 7.3pH | 30/04/2026 | |
| O2 saturation | 103.4% | 30/04/2026 |
FAOU À FAOU (LE)75/100
| O2 saturation | 109.8% | 30/04/2026 | |
| MES | 178.0mg/L | 30/04/2026 | |
| Ammonium | 1.3mg/L | 30/04/2026 | |
| Phosphore | 0.011mg/L | 30/04/2026 | |
| Conductivité | 11.0µS/cm | 30/04/2026 |
RAU PENNALEN À PONT-AVEN62/100
| O2 saturation | 99.5% | 29/04/2026 | |
| MES | 204.0mg/L | 29/04/2026 | |
| Conductivité | 10.7µS/cm | 29/04/2026 | |
| Phosphore | 0.017mg/L | 29/04/2026 | |
| Nitrates | 34.8mg/L | 29/04/2026 |
RAU DOURDU À RIEC-SUR-BELON69/100
| Temp. eau | 14.6°C | 29/04/2026 | |
| Conductivité | 10.0µS/cm | 29/04/2026 | |
| O2 saturation | 97.6% | 29/04/2026 | |
| MES | 270.0mg/L | 29/04/2026 | |
| Nitrates | 24.0mg/L | 29/04/2026 |
AVEN à PONT-AVEN69/100
| Conductivité | 10.7µS/cm | 29/04/2026 | |
| MES | 174.0mg/L | 29/04/2026 | |
| Phosphore | 0.034mg/L | 29/04/2026 | |
| O2 saturation | 103.0% | 29/04/2026 | |
| pH | 7.2pH | 29/04/2026 |
BELON à RIEC-SUR-BELON62/100
| Ammonium | 3.4mg/L | 29/04/2026 | |
| MES | 199.0mg/L | 29/04/2026 | |
| Phosphore | 0.039mg/L | 29/04/2026 | |
| Temp. eau | 14.6°C | 29/04/2026 | |
| Nitrates | 27.4mg/L | 29/04/2026 |
STER GOZ à BANNALEC62/100
| Ammonium | 3.2mg/L | 29/04/2026 | |
| O2 saturation | 98.7% | 29/04/2026 | |
| Nitrates | 25.3mg/L | 29/04/2026 | |
| MES | 168.0mg/L | 29/04/2026 | |
| Temp. eau | 12.7°C | 29/04/2026 |
PONT QUOREN À NEVEZ75/100
| Phosphore | 0.074mg/L | 29/04/2026 | |
| O2 saturation | 79.3% | 29/04/2026 | |
| Temp. eau | 13.8°C | 29/04/2026 | |
| Conductivité | 8.2µS/cm | 29/04/2026 | |
| Nitrates | 4.98mg/L | 29/04/2026 |
KERALLE à PLOUESCAT69/100
| Phosphore | 0.087mg/L | 28/04/2026 | |
| O2 saturation | 108.3% | 28/04/2026 | |
| Temp. eau | 13.1°C | 28/04/2026 | |
| pH | 7.7pH | 28/04/2026 | |
| Ammonium | 2.0mg/L | 28/04/2026 |
HORN à MESPAUL69/100
| Temp. eau | 11.7°C | 28/04/2026 | |
| MES | 325.0mg/L | 28/04/2026 | |
| Nitrates | 51.0mg/L | 28/04/2026 | |
| Phosphore | 0.04mg/L | 28/04/2026 | |
| Conductivité | 11.6µS/cm | 28/04/2026 |
GUILLEC à TREZILIDE69/100
| Nitrates | 48.7mg/L | 28/04/2026 | |
| Phosphore | 0.055mg/L | 28/04/2026 | |
| MES | 322.0mg/L | 28/04/2026 | |
| O2 saturation | 100.5% | 28/04/2026 | |
| Temp. eau | 11.9°C | 28/04/2026 |
AR REST À PLOUNEVEZ-LOCHRIST69/100
| Ammonium | 1.5mg/L | 28/04/2026 | |
| MES | 405.0mg/L | 28/04/2026 | |
| Nitrates | 50.0mg/L | 28/04/2026 | |
| Phosphore | 0.037mg/L | 28/04/2026 | |
| Conductivité | 10.8µS/cm | 28/04/2026 |
VALLEE DES MOULINS ou RAU DONAN à SAINT-JEAN-DU-DOIGT69/100
| pH | 6.8pH | 28/04/2026 | |
| O2 saturation | 101.0% | 28/04/2026 | |
| MES | 471.0mg/L | 28/04/2026 | |
| Temp. eau | 11.2°C | 28/04/2026 | |
| Ammonium | 1.7mg/L | 28/04/2026 |
ISOLE à SAINT-THURIEN69/100
| Conductivité | 10.8µS/cm | 22/04/2026 | |
| pH | 7.2pH | 22/04/2026 | |
| Nitrates | 17.2mg/L | 22/04/2026 | |
| MES | 151.0mg/L | 22/04/2026 | |
| Phosphore | 0.015mg/L | 22/04/2026 |
GOYEN à PONT-CROIX62/100
| MES | 236.0mg/L | 22/04/2026 | |
| Ammonium | 2.4mg/L | 22/04/2026 | |
| Nitrates | 30.8mg/L | 22/04/2026 | |
| O2 saturation | 96.5% | 22/04/2026 | |
| Temp. eau | 11.5°C | 22/04/2026 |
NEVET à KERLAZ75/100
| O2 saturation | 98.1% | 22/04/2026 | |
| Temp. eau | 11.2°C | 22/04/2026 | |
| pH | 7.0pH | 22/04/2026 | |
| Phosphore | 0.089mg/L | 22/04/2026 | |
| Ammonium | 1.9mg/L | 22/04/2026 |
FROUT À QUIMPERLE75/100
| O2 saturation | 95.2% | 22/04/2026 | |
| pH | 7.3pH | 22/04/2026 | |
| Conductivité | 10.6µS/cm | 22/04/2026 | |
| Nitrates | 4.5mg/L | 22/04/2026 | |
| Temp. eau | 10.8°C | 22/04/2026 |
ELORN à PLOUEDERN62/100
| Temp. eau | 11.6°C | 21/04/2026 | |
| Phosphore | 0.038mg/L | 21/04/2026 | |
| Nitrates | 29.7mg/L | 21/04/2026 | |
| MES | 211.0mg/L | 21/04/2026 | |
| O2 saturation | 120.0% | 21/04/2026 |
ELORN à COMMANA69/100
| O2 saturation | 100.8% | 21/04/2026 | |
| Nitrates | 1.16mg/L | 21/04/2026 | |
| Temp. eau | 9.5°C | 21/04/2026 | |
| MES | 59.0mg/L | 21/04/2026 | |
| Ammonium | 3.0mg/L | 21/04/2026 |
Nappes phréatiques
Source : Hub'Eau niveaux_nappes · 16 stations
Trégunc
Niveau : N.C.—
Saint-Divy
Niveau : N.C.—
Spézet
Niveau : N.C.—
Saint-Hernin
Niveau : N.C.—
Landudec
Niveau : N.C.—
Pluguffan
Niveau : N.C.—
Plougonven
Niveau : N.C.—
Pencran
Niveau : N.C.—
Commana
Niveau : N.C.—
Guilligomarc'h
Niveau : N.C.—
Plouvorn
Niveau : N.C.—
Landrévarzec
Niveau : N.C.—
Lanrivoaré
Niveau : N.C.—
Saint-Nic
Niveau : N.C.—
Saint-Ségal
Niveau : N.C.—
Scaër
Niveau : N.C.—