York Region water, town by town
| Town | Source | Hardness (mg/L) |
|---|---|---|
| Vaughan | Lake Ontario | 128 |
| Markham | Lake Ontario | 126 |
| Richmond Hill | Lake Ontario | 127 |
| Aurora | Lake + wells | 130 |
| Newmarket | Lake + wells | 141 |
| Stouffville | Lake + wells | 318 |
| Ballantrae / Musselman's Lake | Wells | 205 |
| King City | Lake Ontario | 131 |
| Nobleton, Schomberg | Wells | 264 |
York Region, Q2 2026 averages. Sources: York Region, drinking water quality and monitoring (Q2 2026 averages).
Choose your town
Vaughan water filtrationLake Ontario via Peel and TorontoMarkham water filtrationLake Ontario via Peel and TorontoRichmond Hill water filtrationLake Ontario via Peel and TorontoAurora water filtrationLake Ontario and groundwaterNewmarket water filtrationLake Ontario and groundwaterStouffville water filtrationLake Ontario and wellsKing water filtrationLake Ontario and wells
What we recommend
Lake Ontario water (about 7 to 8 gpg)
A softener for scale plus carbon for chlorine: the Enhanced Water Softener does both.
Municipal wells (15 to 20+ gpg)
A properly sized softener is essential; add reverse osmosis for drinking water.
Private wells
Iron removal, softening and UV disinfection. See well water solutions.
Free in-home water test
Find out what's in your water
We test your water at your home, show you what's in it, and recommend the system that fits.
- Free
- About 30 minutes
- No obligation