Yorkdale-Glen Park Water Hardness & Quality Report (2026)
Water Hardness
Source
lake
pH Level
8.2
neutral = 7.0
Lead
0.004 mg/L
✓ Below action level
TDS
595.1 mg/L
Est. Daily Cost
$0.63
energy & soap waste
Source: Health Canada Water Quality · Updated 2026
0–60
mg/L
Soft
61–120
mg/L
Moderately Hard
121–180
mg/L
Hard
180+
mg/L
Very Hard
Appliance Damage Report
In Yorkdale-Glen Park, your appliances are currently losing 31% efficiency due to mineral buildup.
| Appliance | In Yorkdale-Glen Park | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 1.8 yrs | 8.5 yrs | -79% |
| Washing Machine | 4.9 yrs | 12 yrs | -59% |
| Water Heater | 6.2 yrs | 15 yrs | -59% |
Regional Water Comparison
How Yorkdale-Glen Park compares to its nearest neighbours
| City | Hardness | Mineralization | Risk |
|---|---|---|---|
| ▶ Yorkdale-Glen Park, Ontario | 236 mg/L | Very High | 🔴 Very Hard |
| Briar Hill-Belgravia, Ontario | 238 mg/L | Very High | 🔴 Very Hard |
| Englemount-Lawrence, Ontario | 238.5 mg/L | Very High | 🔴 Very Hard |
| Maple Leaf, Ontario | 238 mg/L | Very High | 🔴 Very Hard |
| Clanton Park, Ontario | 237.5 mg/L | Very High | 🔴 Very Hard |
National Benchmark
How Yorkdale-Glen Park compares to the Canada average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Yorkdale-Glen Park | 236 mg/L | 🔴 High |
| Canada National Avg | 141 mg/L | 🟠 Moderate |
| Vancouver Top Rated | 3 mg/L | 🟢 None |
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What Makes Yorkdale-Glen Park's Water Unique?
Local geology and source profile
Yorkdale-Glen Park (a North York neighbourhood near Dufferin Street and Wilson Avenue — a dense residential community of post-war apartment towers and bungalows adjacent to the Yorkdale Shopping Centre, one of Canada's premier retail destinations, served by the Yorkdale TTC subway station, with a large Italian-Canadian and newcomer community in the Wilson Avenue corridor) receives its drinking water from the City of Toronto, drawing from Lake Ontario via the R.C. Harris Water Treatment Plant. Water is treated using ozonation, biofiltration, UV disinfection, and chloramination, meeting all Guidelines for Canadian Drinking Water Quality (GCDWQ) standards. Hardness in this distribution zone is 236 mg/L (13.8 gpg) — classified as very hard by Health Canada, consistent with the North York supply corridor.
Yorkdale-Glen Park receives R.C. Harris plant Lake Ontario supply through the North York distribution network — the same characteristically very hard Lake Ontario source (dissolved Silurian and Devonian carbonate from the Great Lakes basin) as all Toronto boroughs. The 236 mg/L is consistent with the adjacent Clanton Park (237.5 mg/L) and Bathurst Manor (236.5 mg/L) in the Dufferin–Wilson–Sheppard North York distribution corridor.
At 236 mg/L, Yorkdale-Glen Park residents face persistent scale challenges — monthly to bimonthly kettle and showerhead descaling is typical. Hot water tanks accumulate scale and benefit from annual inspection. The City of Toronto provides multilingual water quality information at toronto.ca/water. Health Canada lead service line precautionary guidance applies to the neighbourhood's post-war apartment towers and bungalow housing stock for pre-1975 properties.
Geology & Source: Supplied by City of Toronto from Lake Ontario via the R.C. Harris Water Treatment Plant — the Yorkdale-Glen Park North York distribution zone carries very hard water at 236 mg/L (13.8 gpg), consistent with the Dufferin–Wilson North York supply corridor.