Drinking Water
Ontario Drinking Water
51 municipalities with water quality readings. Provincial averages from the latest ECCC and municipal open data sync.
Avg hardness
182 mg/L
Avg pH
7.5
Avg lead
0.4 μg/L
Cities
51
Cities in this province
Sort and search water quality readings for every tracked municipality
Showing 51 of 51 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 → |
| Belleville - Quinte WestGrade C | pH 7.7 · 279 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 → |
| BrantfordGrade B | pH 7.4 · 266 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 → |
| Wasaga BeachGrade B | pH 8.2 · 244 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 → |
| MarkhamGrade B | pH 7.2 · 229 mg/L hardness | View data → |
| Kawartha LakesGrade B | pH 8.2 · 214 mg/L hardness | View data → |
| BurlingtonGrade B | pH 7.3 · 210 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 → |
| St. CatharinesGrade B | pH 8 · 182 mg/L hardness | View data → |
| BramptonGrade B | pH 6.9 · 181 mg/L hardness | View data → |
| MidlandGrade B | pH 8 · 177 mg/L hardness | View data → |
| MississaugaGrade B | pH 7.8 · 175 mg/L hardness | View data → |
| SudburyGrade A | pH 7.1 · 168 mg/L hardness | View data → |
| SarniaGrade A | pH 8 · 162 mg/L hardness | View data → |
| CambridgeGrade C | pH 7.4 · 156 mg/L hardness | View data → |
| VaughanGrade C | pH 6.9 · 156 mg/L hardness | View data → |
| WoodstockGrade C | pH 7.3 · 155 mg/L hardness | View data → |
| KenoraGrade B | pH 7.1 · 138 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 → |
| CornwallGrade B | pH 7.3 · 130 mg/L hardness | View data → |
| BarrieGrade A | pH 7.2 · 129 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 → |
| 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 → |
| WindsorGrade C | pH 7.8 · 110 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 → |
| OakvilleGrade B | pH 8.2 · 99 mg/L hardness | View data → |
| OshawaGrade B | pH 7.6 · 93 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 → |
| TillsonburgGrade A | pH 6.9 · 81 mg/L hardness | View data → |
| Thunder BayGrade C | pH 7.5 · 42 mg/L hardness | View data → |
| OttawaGrade C | pH 7.6 · 21 mg/L hardness | View data → |