Understanding King's water
King City now gets Lake Ontario water through York Region (its two wells are installed but offline), and averaged 131 mg/L hardness in Q2 2026. Nobleton and Schomberg run on groundwater at 264 mg/L, and Ansnorveldt's wells measured 116 mg/L with 40.5 mg/L sodium.
| Supply | Hardness (mg/L) | Grains / gallon |
|---|---|---|
| King City (lake) | 131 | 7.7 |
| Nobleton (wells) | 264 | 15.4 |
| Schomberg (wells) | 264 | 15.4 |
| Ansnorveldt (wells) | 116 | 6.8 |
Why King homes treat their water
King is a township of very different water: lake water in King City, very hard groundwater in Nobleton and Schomberg, and private wells across the countryside.
Recommended water treatment for King homes
We recommend systems based on where your water comes from. Your free in-home test confirms the fit before anything is installed.
King homes on municipal water
King City, Nobleton, Schomberg, Ansnorveldt
Softening first: at these hardness levels it protects every appliance. The Enhanced Water Softener also removes chlorine, and reverse osmosis gives bottled-quality drinking water.
Homes on private wells
Kettleby, Pottageville, Laskay, Lloydtown, Snowball and rural King
Private wells usually need iron and manganese removal, softening and UV disinfection, plus tannin treatment if the water is tea-coloured.
Iron & Manganese Filter
Birm media removes iron, manganese and the orange or black stains they leave.
See Iron & Manganese Filter
SoftBlu Water Softener
High-capacity softener that stops scale on fixtures, kettles and appliances.
See SoftBlu Water Softener
UV Pro
Ultraviolet disinfection for well water: bacteria, viruses and cysts.
See UV Pro
Tannin Eliminator
Clears tea-coloured water and yellow stains caused by tannins.
See Tannin EliminatorPopular in King
Nearby areas we also serve
Questions
How hard is King water?
King City now gets Lake Ontario water through York Region (its two wells are installed but offline), and averaged 131 mg/L hardness in Q2 2026. See the table above for each supply.
Is there free well water testing near King?
Yes. Public Health Ontario tests private well water for bacteria for free; sample bottles are available through your regional health unit. Our free in-home test covers iron, hardness and other minerals.
Free in-home water test
Find out what's in your King 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