Drinking Water
Ontario Drinking Water
123 municipalities with water quality readings. Provincial averages from the latest ECCC and municipal open data sync.
Avg hardness
178 mg/L
Avg pH
7.5
Avg lead
0.4 μg/L
Cities
123
Cities in this province
Sort and search water quality readings for every tracked municipality
Showing 123 of 123 municipalities
| Report | ||
|---|---|---|
| GuelphGrade B | pH 7.2 · 460 mg/L hardness | View data → |
| KitchenerGrade B | pH 8 · 400 mg/L hardness | View data → |
| WaterlooGrade C | pH 8.2 · 400 mg/L hardness | View data → |
| Whitchurch-StouffvilleGrade B | pH 7.9 · 318 mg/L hardness | View data → |
| BrantfordGrade B | pH 7.4 · 289 mg/L hardness | View data → |
| Belleville - Quinte WestGrade C | pH 7.7 · 279 mg/L hardness | View data → |
| CochraneGrade C | pH 7.5 · 277 mg/L hardness | View data → |
| HawkesburyGrade C | pH 7.9 · 271 mg/L hardness | View data → |
| IngersollGrade C | pH 7.4 · 271 mg/L hardness | View data → |
| HanoverGrade B | pH 8.2 · 269 mg/L hardness | View data → |
| Greater SudburyGrade B | pH 7.2 · 259 mg/L hardness | View data → |
| PenetanguisheneGrade B | pH 7.7 · 259 mg/L hardness | View data → |
| PerthGrade B | pH 8.2 · 259 mg/L hardness | View data → |
| Norfolk CountyGrade B | pH 7.6 · 258 mg/L hardness | View data → |
| BrockvilleGrade B | pH 7 · 257 mg/L hardness | View data → |
| CollingwoodGrade B | pH 6.8 · 255 mg/L hardness | View data → |
| PeterboroughGrade B | pH 8 · 252 mg/L hardness | View data → |
| Port HopeGrade B | pH 7.5 · 252 mg/L hardness | View data → |
| BrantGrade B | pH 6.9 · 251 mg/L hardness | View data → |
| MintoGrade B | pH 7.7 · 249 mg/L hardness | View data → |
| Smiths FallsGrade B | pH 7.7 · 249 mg/L hardness | View data → |
| Halton HillsGrade B | pH 8 · 247 mg/L hardness | View data → |
| Temiskaming ShoresGrade B | pH 7.4 · 246 mg/L hardness | View data → |
| Plympton-WyomingGrade B | pH 7.7 · 244 mg/L hardness | View data → |
| Wasaga BeachGrade B | pH 8.2 · 244 mg/L hardness | View data → |
| The Blue MountainsGrade B | pH 8.1 · 243 mg/L hardness | View data → |
| GananoqueGrade B | pH 7.4 · 241 mg/L hardness | View data → |
| LakeshoreGrade C | pH 7.1 · 238 mg/L hardness | View data → |
| StratfordGrade C | pH 7.3 · 235 mg/L hardness | View data → |
| Centre WellingtonGrade B | pH 8.2 · 229 mg/L hardness | View data → |
| Chatham-KentGrade B | pH 8.2 · 229 mg/L hardness | View data → |
| Prince Edward CountyGrade B | pH 7.1 · 228 mg/L hardness | View data → |
| HuntsvilleGrade B | pH 7.4 · 226 mg/L hardness | View data → |
| Niagara-on-the-LakeGrade B | pH 6.8 · 225 mg/L hardness | View data → |
| ShelburneGrade B | pH 8 · 222 mg/L hardness | View data → |
| OrangevilleGrade B | pH 7.4 · 216 mg/L hardness | View data → |
| Kawartha LakesGrade B | pH 8.2 · 214 mg/L hardness | View data → |
| Kirkland LakeGrade B | pH 7.8 · 210 mg/L hardness | View data → |
| GravenhurstGrade B | pH 7.2 · 209 mg/L hardness | View data → |
| New TecumsethGrade B | pH 7.7 · 209 mg/L hardness | View data → |
| Owen SoundGrade B | pH 7.7 · 209 mg/L hardness | View data → |
| EssaGrade B | pH 7.1 · 208 mg/L hardness | View data → |
| Sault Ste. MarieGrade B | pH 7 · 207 mg/L hardness | View data → |
| PetroliaGrade B | pH 8.2 · 204 mg/L hardness | View data → |
| St. ThomasGrade B | pH 7.2 · 204 mg/L hardness | View data → |
| South Bruce PeninsulaGrade B | pH 7.6 · 203 mg/L hardness | View data → |
| Fort FrancesGrade B | pH 7 · 202 mg/L hardness | View data → |
| BracebridgeGrade B | pH 6.8 · 200 mg/L hardness | View data → |
| Saugeen ShoresGrade C | pH 7.2 · 199 mg/L hardness | View data → |
| LaSalleGrade C | pH 8.1 · 198 mg/L hardness | View data → |
| TecumsehGrade C | pH 7.5 · 192 mg/L hardness | View data → |
| MiltonGrade C | pH 7.9 · 191 mg/L hardness | View data → |
| Port ColborneGrade B | pH 7.6 · 188 mg/L hardness | View data → |
| KapuskasingGrade B | pH 6.8 · 185 mg/L hardness | View data → |
| WellandGrade B | pH 7.9 · 181 mg/L hardness | View data → |
| MidlandGrade B | pH 8 · 177 mg/L hardness | View data → |
| ThoroldGrade B | pH 8 · 172 mg/L hardness | View data → |
| GrimsbyGrade A | pH 7.2 · 169 mg/L hardness | View data → |
| MonoGrade A | pH 7.7 · 169 mg/L hardness | View data → |
| SudburyGrade A | pH 7.1 · 168 mg/L hardness | View data → |
| RenfrewGrade A | pH 7.3 · 165 mg/L hardness | View data → |
| EssexGrade A | pH 7.2 · 164 mg/L hardness | View data → |
| LincolnGrade A | pH 7.6 · 163 mg/L hardness | View data → |
| SarniaGrade A | pH 8 · 162 mg/L hardness | View data → |
| Mississippi MillsGrade C | pH 7 · 157 mg/L hardness | View data → |
| CambridgeGrade C | pH 7.4 · 156 mg/L hardness | View data → |
| WoodstockGrade C | pH 7.3 · 155 mg/L hardness | View data → |
| CaledonGrade C | pH 7 · 152 mg/L hardness | View data → |
| Haldimand CountyGrade C | pH 7.4 · 151 mg/L hardness | View data → |
| InnisfilGrade B | pH 7.4 · 146 mg/L hardness | View data → |
| GeorginaGrade B | pH 7.1 · 144 mg/L hardness | View data → |
| DrydenGrade B | pH 7.5 · 142 mg/L hardness | View data → |
| KingsvilleGrade B | pH 7 · 142 mg/L hardness | View data → |
| Parry SoundGrade B | pH 7 · 142 mg/L hardness | View data → |
| KenoraGrade B | pH 7.1 · 138 mg/L hardness | View data → |
| Fort ErieGrade B | pH 6.8 · 135 mg/L hardness | View data → |
| PembrokeGrade B | pH 7.1 · 133 mg/L hardness | View data → |
| TimminsGrade B | pH 7.1 · 133 mg/L hardness | View data → |
| BellevilleGrade B | pH 7 · 132 mg/L hardness | View data → |
| AuroraGrade B | pH 7.8 · 130 mg/L hardness | View data → |
| CornwallGrade B | pH 7.3 · 130 mg/L hardness | View data → |
| St. CatharinesGrade B | pH 7.5 · 130 mg/L hardness | View data → |
| BarrieGrade A | pH 7.2 · 129 mg/L hardness | View data → |
| PelhamGrade A | pH 7.7 · 129 mg/L hardness | View data → |
| VaughanGrade C | pH 6.9 · 128 mg/L hardness | View data → |
| Richmond HillGrade C | pH 7.6 · 127 mg/L hardness | View data → |
| AylmerGrade A | pH 7.9 · 126 mg/L hardness | View data → |
| MarkhamGrade B | pH 7.2 · 126 mg/L hardness | View data → |
| Niagara FallsGrade B | pH 7.42 · 126 mg/L hardness | View data → |
| AjaxGrade B | pH 7.8 · 125 mg/L hardness | View data → |
| BramptonGrade B | pH 7.3 · 125 mg/L hardness | View data → |
| MississaugaGrade B | pH 7.3 · 125 mg/L hardness | View data → |
| OshawaGrade B | pH 7.6 · 125 mg/L hardness | View data → |
| PickeringGrade A | pH 7.3 · 125 mg/L hardness | View data → |
| WhitbyGrade C | pH 7.4 · 125 mg/L hardness | View data → |
| BurlingtonGrade B | pH 7.6 · 124 mg/L hardness | View data → |
| Clarence-RocklandGrade A | pH 7.2 · 124 mg/L hardness | View data → |
| OakvilleGrade B | pH 7.6 · 124 mg/L hardness | View data → |
| TorontoGrade C | pH 7.5 · 121 mg/L hardness | View data → |
| HamiltonGrade B | pH 7.7 · 120 mg/L hardness | View data → |
| St. MarysGrade A | pH 7.8 · 120 mg/L hardness | View data → |
| EspanolaGrade C | pH 7.2 · 119 mg/L hardness | View data → |
| LondonGrade B | pH 7.3 · 119 mg/L hardness | View data → |
| PetawawaGrade C | pH 8.1 · 118 mg/L hardness | View data → |
| NorfolkGrade C | pH 7.3 · 115 mg/L hardness | View data → |
| KingstonGrade A | pH 6.8 · 114 mg/L hardness | View data → |
| GoderichGrade C | pH 7.4 · 111 mg/L hardness | View data → |
| AmherstburgGrade C | pH 6.8 · 110 mg/L hardness | View data → |
| WindsorGrade C | pH 7.8 · 110 mg/L hardness | View data → |
| Carleton PlaceGrade B | pH 7.1 · 108 mg/L hardness | View data → |
| OrilliaGrade B | pH 6.9 · 106 mg/L hardness | View data → |
| Elliot LakeGrade B | pH 7.8 · 105 mg/L hardness | View data → |
| Quinte WestGrade B | pH 7 · 102 mg/L hardness | View data → |
| CobourgGrade B | pH 7.9 · 91 mg/L hardness | View data → |
| North BayGrade B | pH 7.3 · 90 mg/L hardness | View data → |
| ErinGrade A | pH 6.9 · 86 mg/L hardness | View data → |
| Greater NapaneeGrade A | pH 7.3 · 85 mg/L hardness | View data → |
| Bradford West GwillimburyGrade A | pH 7.2 · 84 mg/L hardness | View data → |
| East GwillimburyGrade A | pH 7.6 · 83 mg/L hardness | View data → |
| ArnpriorGrade A | pH 7.4 · 81 mg/L hardness | View data → |
| TillsonburgGrade A | pH 6.9 · 81 mg/L hardness | View data → |
| Thunder BayGrade A | pH 8.02 · 45.8 mg/L hardness | View data → |
| OttawaGrade C | pH 7.6 · 21 mg/L hardness | View data → |