privatewelldata / Quebec wells
Quebec well water by municipality
Private-well results for 74 Quebec municipalities. Arsenic: 21 of 946 sampled wells above the standard. Updated 2026-10-17. Source : PACES – Projets d'acquisition de connaissances sur les eaux souterraines (MELCCFP), compiled database (CC-BY 4.0).
Share of sampled wells whose latest result is above the Quebec drinking-water standard (Règlement sur la qualité de l'eau potable, annexe 1), from the provincial PACES groundwater surveys. Wells of every kind are included, so treat this as a local picture. Only a test of your own well tells you what is in it.
Six Laurentides municipalities without well coordinates are placed at their official place-name point (Natural Resources Canada CGNDB, Open Government Licence – Canada, retrieved 2026-10-18). Base map : OpenFreeMap © OpenStreetMap.
| Municipality | Arsenic > 0.01 mg/L | Manganese > 0.12 mg/L | Uranium > 0.02 mg/L | Fluoride > 1.5 mg/L | Barium > 1 mg/L |
|---|---|---|---|---|---|
| Alleyn-et-Cawood | – | 75% of 12 | – | – | – |
| Alma | – | 31% of 13 | – | 10% of 10 | 0% of 12 |
| Amos | 6% of 31 | 32% of 34 | 0% of 21 | 0% of 30 | 0% of 31 |
| Austin | 20% of 10 | 36% of 11 | – | – | 0% of 10 |
| Baie-Saint-Paul | 0% of 20 | 0% of 20 | 0% of 20 | 10% of 20 | 0% of 20 |
| Barraute | 7% of 15 | 27% of 15 | – | 0% of 15 | 0% of 15 |
| Cantley | 0% of 23 | 30% of 20 | 17% of 23 | 4% of 23 | 0% of 23 |
| Chelsea | 0% of 12 | 8% of 12 | – | 8% of 12 | 0% of 12 |
| Clarendon | 0% of 12 | 17% of 12 | 8% of 12 | 25% of 12 | 0% of 12 |
| Cleveland | – | 40% of 10 | – | 0% of 10 | – |
| Colombier | 0% of 10 | 20% of 10 | 0% of 10 | 20% of 10 | 0% of 10 |
| Dolbeau-Mistassini | – | 23% of 13 | – | – | 0% of 13 |
| Dudswell | – | 20% of 10 | – | – | – |
| Déléage | – | 46% of 13 | – | – | – |
| Farnham | – | 55% of 11 | – | 0% of 12 | – |
| Ferme-Neuve | 0% of 12 | 8% of 12 | 0% of 12 | – | 0% of 12 |
| Forestville | 0% of 10 | 20% of 10 | 0% of 10 | 40% of 10 | 0% of 10 |
| Gatineau | 6% of 64 | 38% of 136 | 0% of 25 | 14% of 22 | 0% of 49 |
| L'Ange-Gardien | 8% of 13 | 17% of 18 | 0% of 12 | 6% of 18 | 0% of 13 |
| La Corne | 0% of 10 | 60% of 10 | – | 0% of 10 | 10% of 10 |
| La Malbaie | 0% of 38 | 0% of 38 | 5% of 38 | 6% of 36 | 0% of 38 |
| La Motte | 0% of 14 | 57% of 14 | – | 0% of 14 | 0% of 14 |
| Lac-Beauport | 0% of 32 | 6% of 16 | – | 6% of 32 | 0% of 32 |
| Lac-Delage | 0% of 12 | – | – | 17% of 12 | 0% of 12 |
| Lac-Saguay | 0% of 12 | 25% of 12 | 0% of 12 | – | 0% of 12 |
| Landrienne | 7% of 14 | 64% of 14 | – | 0% of 13 | 0% of 14 |
| Launay | – | 43% of 14 | – | – | – |
| Les Bergeronnes | 0% of 16 | 0% of 16 | 0% of 16 | 0% of 16 | 0% of 16 |
| Les Escoumins | 0% of 12 | 33% of 12 | 17% of 12 | 17% of 12 | 0% of 12 |
| Les Éboulements | 0% of 14 | 0% of 14 | 0% of 14 | 0% of 14 | 0% of 14 |
| Litchfield | – | 40% of 10 | – | – | – |
| Lévis | 0% of 38 | 44% of 61 | 0% of 28 | 9% of 34 | 15% of 46 |
| Mascouche | 0% of 17 | 6% of 17 | 0% of 17 | – | 6% of 17 |
| Mont-Laurier | 0% of 18 | 6% of 18 | 0% of 18 | – | 0% of 18 |
| Mont-Tremblant | 0% of 11 | 27% of 11 | – | – | 0% of 11 |
| Morin-Heights | 0% of 15 | 0% of 15 | 0% of 15 | – | 0% of 15 |
| Métabetchouan--Lac-à-la-Croix | – | – | – | 30% of 10 | 0% of 10 |
| Nominingue | 0% of 30 | 7% of 30 | 3% of 30 | – | 0% of 30 |
| Notre-Dame-des-Monts | 0% of 10 | 0% of 10 | 0% of 10 | 0% of 10 | 0% of 10 |
| Notre-Dame-du-Laus | 0% of 14 | 7% of 14 | 0% of 14 | – | 0% of 14 |
| Orford | – | 60% of 10 | – | 0% of 10 | – |
| Potton | – | 30% of 10 | – | 0% of 10 | – |
| Preissac | 0% of 10 | 50% of 10 | – | 10% of 10 | 0% of 10 |
| Québec | 0% of 28 | 32% of 25 | 0% of 24 | 4% of 28 | 0% of 28 |
| Riviere-Rouge | 0% of 13 | 23% of 13 | 0% of 13 | – | 0% of 13 |
| Rivière-Héva | 18% of 11 | 18% of 11 | 0% of 11 | 0% of 11 | 0% of 11 |
| Rouyn-Noranda | 12% of 26 | 46% of 26 | 0% of 23 | 0% of 27 | 0% of 27 |
| Sacré-Coeur | 0% of 12 | 17% of 12 | 0% of 12 | 0% of 12 | 0% of 12 |
| Saguenay | – | 14% of 43 | – | 24% of 37 | 2% of 44 |
| Saint-Adolphe-d Howard | 0% of 14 | 7% of 14 | 0% of 14 | – | 0% of 14 |
| Saint-Bonaventure | – | 8% of 13 | – | 7% of 15 | – |
| Saint-David | – | – | – | 0% of 10 | – |
| Saint-Eugène | – | 17% of 12 | – | 8% of 12 | – |
| Saint-Félicien | – | 16% of 19 | – | 20% of 10 | 0% of 20 |
| Saint-Hyacinthe | – | 10% of 10 | – | 17% of 12 | – |
| Saint-Jean-sur-Richelieu | – | – | – | 20% of 10 | – |
| Saint-Lazare | – | 44% of 16 | – | – | – |
| Saint-Mathieu-d'Harricana | 14% of 22 | 41% of 22 | 6% of 16 | 0% of 22 | 0% of 22 |
| Saint-Mathieu-du-Parc | 0% of 15 | 0% of 15 | 0% of 15 | 0% of 15 | 0% of 15 |
| Saint-Nazaire-d'Acton | – | 36% of 11 | – | 0% of 11 | – |
| Saint-Valérien-de-Milton | – | 20% of 10 | – | 0% of 10 | – |
| Sainte-Brigitte-de-Laval | 0% of 22 | 9% of 23 | 0% of 11 | 9% of 22 | 0% of 22 |
| Sainte-Christine | – | 67% of 15 | – | 0% of 16 | – |
| Sainte-Gertrude-Manneville | 0% of 18 | 44% of 18 | 0% of 12 | 0% of 18 | 0% of 18 |
| Senneterre | 0% of 17 | 28% of 18 | 0% of 16 | 0% of 18 | 0% of 17 |
| Shawinigan | 0% of 22 | 27% of 22 | 0% of 22 | 0% of 22 | 0% of 22 |
| Shefford | – | 10% of 10 | – | 0% of 10 | – |
| Stoneham-et-Tewkesbury | 0% of 48 | 0% of 19 | 0% of 15 | 6% of 48 | 0% of 48 |
| Terrebonne | 0% of 10 | 10% of 10 | 0% of 10 | – | 0% of 10 |
| Trois-Rivières | 0% of 12 | 33% of 12 | 0% of 12 | 0% of 12 | 8% of 12 |
| Trécesson | 0% of 14 | 14% of 14 | 0% of 10 | 0% of 14 | 0% of 14 |
| Val-d'Or | 4% of 55 | 44% of 63 | 0% of 45 | 6% of 54 | 0% of 54 |
| Val-des-Monts | 0% of 18 | 28% of 18 | 6% of 18 | 6% of 17 | 0% of 18 |
| Wickham | – | 38% of 13 | – | 0% of 12 | – |
Covers the 12 regions in the 2019 PACES compilation plus the 2025–26 Estrie and Laurentides-Les Moulins files (Lanaudière and Mauricie-Est results cannot be attributed to a well or parameter, so they are not used). A municipality appears for a substance only when at least 10 wells were sampled. Nitrate is not shown because the compiled data does not say whether values are expressed as nitrogen or as nitrate. Method: data rules.