Yonge-Eglinton 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
602.7 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 Yonge-Eglinton, your appliances are currently losing 32% efficiency due to mineral buildup.
| Appliance | In Yonge-Eglinton | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 1.7 yrs | 8.5 yrs | -80% |
| Washing Machine | 4.8 yrs | 12 yrs | -60% |
| Water Heater | 6.1 yrs | 15 yrs | -59% |
Regional Water Comparison
How Yonge-Eglinton compares to its nearest neighbours
| City | Hardness | Mineralization | Risk |
|---|---|---|---|
| ▶ Yonge-Eglinton, Ontario | 238 mg/L | Very High | 🔴 Very Hard |
| Toronto, Ontario | 124 mg/L | High | 🟠 Hard |
| Mount Pleasant West, Ontario | 235.5 mg/L | Very High | 🔴 Very Hard |
| Lawrence Park South, Ontario | 236.5 mg/L | Very High | 🔴 Very Hard |
| Forest Hill South, Ontario | 239.5 mg/L | Very High | 🔴 Very Hard |
National Benchmark
How Yonge-Eglinton compares to the Canada average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Yonge-Eglinton | 238 mg/L | 🔴 High |
| Canada National Avg | 141 mg/L | 🟠 Moderate |
| Vancouver Top Rated | 3 mg/L | 🟢 None |
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What Makes Yonge-Eglinton's Water Unique?
Local geology and source profile
Yonge-Eglinton (a major midtown Toronto neighbourhood and transit hub at the intersection of Yonge Street and Eglinton Avenue — the Yonge-Eglinton Centre commercial complex, the Eglinton Crosstown LRT terminus, the Yonge-Eglinton subway interchange, and the upscale residential towers of the Yonge-Eglinton corridor, one of Toronto's most intensely developed midtown crossroads with the Avenue Road–Leaside affluent residential streets branching off the Yonge arterial, and the rapidly densifying midtown Toronto condominium market of the 2010s–2020s) receives its drinking water from the City of Toronto, drawing from Lake Ontario via the F.J. Horgan Water Treatment Plant. Water is treated using ozonation, biofiltration, UV disinfection, and chloramination, meeting all Guidelines for Canadian Drinking Water Quality (GCDWQ) standards. Hardness is 238 mg/L (13.9 gpg) — classified as very hard by Health Canada, consistent with the standard midtown Toronto supply.
Yonge-Eglinton receives F.J. Horgan plant Lake Ontario supply through the midtown Toronto distribution — the same characteristically very hard Lake Ontario source (dissolved Silurian and Devonian carbonate from the Great Lakes basin) as all Toronto boroughs. The 238 mg/L is essentially identical to Yonge-St.Clair (237 mg/L from batch 31) and the standard Yonge-Eglinton–Midtown Toronto corridor.
At 238 mg/L, Yonge-Eglinton residents face persistent scale challenges — monthly to bimonthly kettle and showerhead descaling is typical. The City of Toronto provides water quality information at toronto.ca/water. Health Canada lead service line precautionary guidance applies to pre-1975 properties in the established Yonge-Eglinton residential streets north of Eglinton Avenue.
Geology & Source: Supplied by City of Toronto from Lake Ontario via the F.J. Horgan Water Treatment Plant — the Yonge-Eglinton midtown Toronto distribution zone carries very hard water at 238 mg/L (13.9 gpg), consistent with the Yonge-Eglinton midtown supply corridor.