Etobicoke Water Hardness & Quality Report (2026)
Water Hardness
Source
lake
pH Level
7.9
neutral = 7.0
Lead
0.003 mg/L
✓ Below action level
TDS
422.3 mg/L
Est. Daily Cost
$0.51
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 Etobicoke, your appliances are currently losing 25% efficiency due to mineral buildup.
| Appliance | In Etobicoke | Soft Water City | Efficiency Loss |
|---|---|---|---|
| Kettle | 3.3 yrs | 8.5 yrs | -61% |
| Washing Machine | 6.6 yrs | 12 yrs | -45% |
| Water Heater | 8 yrs | 15 yrs | -47% |
Regional Water Comparison
How Etobicoke compares to its nearest neighbours
| City | Hardness | Mineralization | Risk |
|---|---|---|---|
| ▶ Etobicoke, Ontario | 190 mg/L | Very High | 🔴 Very Hard |
| Mississauga, Ontario | 130 mg/L | High | 🟠 Hard |
| Toronto, Ontario | 124 mg/L | High | 🟠 Hard |
| Brampton, Ontario | 130 mg/L | High | 🟠 Hard |
| Vaughan, Ontario | 130 mg/L | High | 🟠 Hard |
National Benchmark
How Etobicoke compares to the Canada average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Etobicoke | 190 mg/L | 🔴 High |
| Canada National Avg | 104 mg/L | 🟡 Low |
| Vancouver Top Rated | 3 mg/L | 🟢 None |
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What Makes Etobicoke's Water Unique?
Local geology and source profile
Etobicoke is served by Toronto Water, part of the City of Toronto's integrated water supply network drawing from Lake Ontario via offshore intake structures. Water from this zone is primarily treated at the F.J. Horgan (east end) and R.L. Clark (Scarborough) treatment plants, then distributed westward through Toronto's transmission network. Treatment includes coagulation, sedimentation, filtration, UV disinfection, and chloramination, complying fully with the Guidelines for Canadian Drinking Water Quality (GCDWQ). Hardness in the Etobicoke distribution zone is measured at 190 mg/L (11.1 gpg) — classified as hard by Health Canada.
The elevated hardness in Etobicoke's distribution zone — above the city-wide average of 124 mg/L — reflects the influence of Silurian dolomite formations in the western Lake Ontario basin and variation in distribution residence time within Toronto's large pipe network. Water drawn from the western intake areas and transported through older distribution mains can interact with pipe materials and local geological deposits, contributing additional dissolved minerals before reaching taps.
At 190 mg/L, Etobicoke residents deal with noticeable limescale on shower screens, kettle elements, and tap aerators — descaling every three to four weeks keeps appliances running efficiently. Limescale accumulation inside hot water tanks can significantly reduce efficiency and shorten lifespan; annual inspection and flushing are strongly recommended. A whole-home water softener or scale conditioner is a worthwhile investment for households with new appliances or tankless hot water systems.
Geology & Source: Supplied by Toronto Water from Lake Ontario via the F.J. Horgan and R.L. Clark water treatment plants — Great Lakes basin Silurian dolomite catchment chemistry and local distribution zone variation produces water at 190 mg/L (11.1 gpg).