Humber Heights-Westmount Water Hardness & Quality Report (2026)
Water Hardness
~120–179 mg/L
Hardestimated · not lab-verified
Source
lake
pH Level
7.5
neutral = 7.0
Lead
0.003 mg/L
✓ Below action level
TDS
241.3 mg/L
Est. Daily Cost
$0.40
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 Humber Heights-Westmount, your appliances are currently losing 20% efficiency due to mineral buildup.
| Appliance | In Humber Heights-Westmount | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 6.8 yrs | 8.5 yrs | -20% |
| Washing Machine | 9.6 yrs | 12 yrs | -20% |
| Water Heater | 12 yrs | 15 yrs | -20% |
Regional Water Comparison
How Humber Heights-Westmount compares to its nearest neighbours
| City | Hardness | Mineralization | Risk |
|---|---|---|---|
| ▶ Humber Heights-Westmount, Ontario | ≈ 120–179 mg/L | High | 🟠 Hard |
| Weston, Ontario | ≈ 120–179 mg/L | High | 🟠 Hard |
| Edenbridge-Humber Valley, Ontario | ≈ 60–120 mg/L | High | 🟡 Moderately Hard |
| Pelmo Park-Humberlea, Ontario | ≈ 180+ mg/L | Very High | 🔴 Very Hard |
| Kingsview Village-The Westway, Ontario | ≈ 120–179 mg/L | High | 🟠 Hard |
National Benchmark
How Humber Heights-Westmount compares to the Canada average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Humber Heights-Westmount | ≈ 120–179 mg/L | 🟠 Moderate |
| Canada National Avg | 140 mg/L | 🟠 Moderate |
| Vancouver Top Rated | 3 mg/L | 🟢 None |
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What Makes Humber Heights-Westmount's Water Unique?
Local geology and source profile
Humber Heights-Westmount receives its water supply from Toronto Water Services, a municipal utility. The main source is Lake Ontario, a vast freshwater lake that serves as the primary water body for the Greater Toronto Area. This water is treated at regional facilities before being distributed to neighborhoods like Humber Heights-Westmount. The Lake Ontario drainage basin is the origin of approximately 80% of the water used across the region, highlighting its importance for the local supply.
The water's journey to your tap is influenced by the region's geology. As it flows through the watershed and into Lake Ontario, it interacts with Paleozoic-age limestone and dolomite formations. These rock types are known to dissolve readily into water, picking up minerals like calcium and magnesium. Consequently, the water in Lake Ontario, and thus the supply for Humber Heights-Westmount, is classified as hard to very hard.
This level of hardness can mean noticeable effects around your home. You might find scale building up inside your water heater and other appliances, potentially reducing their efficiency. Dishes and fixtures may show spotting, and you'll likely find that soap doesn't lather as easily as you'd expect. Many homeowners in the Toronto area opt for water softeners to combat these issues. Regularly descaling fixtures and maintaining your water heater are good practices to manage the mineral accumulation that comes with this type of water.
Geology & Source: Lake Ontario; Paleozoic limestone and dolomite formations; moderate to high hardness due to dissolved calcium and magnesium
Other Ontario Water Reports
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