Little Portugal 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
591.1 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 Little Portugal, your appliances are currently losing 31% efficiency due to mineral buildup.
| Appliance | In Little Portugal | 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 Little Portugal compares to its nearest neighbours
| City | Hardness | Mineralization | Risk |
|---|---|---|---|
| ▶ Little Portugal, Ontario | 236 mg/L | Very High | 🔴 Very Hard |
| Dufferin Grove, Ontario | 235 mg/L | Very High | 🔴 Very Hard |
| South Parkdale, Ontario | 238 mg/L | Very High | 🔴 Very Hard |
| Palmerston-Little Italy, Ontario | 238.5 mg/L | Very High | 🔴 Very Hard |
| Roncesvalles, Ontario | 235 mg/L | Very High | 🔴 Very Hard |
National Benchmark
How Little Portugal compares to the Canada average
| Benchmark | Hardness | Appliance Risk |
|---|---|---|
| ▶ Little Portugal | 236 mg/L | 🔴 High |
| Canada National Avg | 141 mg/L | 🟠 Moderate |
| Vancouver Top Rated | 3 mg/L | 🟢 None |
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What Makes Little Portugal's Water Unique?
Local geology and source profile
Little Portugal (a downtown west Toronto neighbourhood centred on Dundas Street West between Dufferin and Ossington — the historic heart of Toronto's Portuguese-Canadian community, originally settled by Azorean and mainland Portuguese immigrants in the 1950s–1970s, now home to a dynamic mix of original Portuguese families alongside new waves of immigration and young professionals drawn by the neighbourhood's vibrant restaurant scene, the MOCA contemporary art museum, and the Casa do Alentejo community hall on the Dundas West cultural strip) 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 in this distribution zone is 236 mg/L (13.8 gpg) — classified as very hard by Health Canada, consistent with the central-west Toronto distribution corridor.
Little Portugal receives F.J. Horgan plant Lake Ontario supply through the downtown west Toronto 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 Trinity-Bellwoods (236 mg/L) and Roncesvalles (237 mg/L) in the same Queen West–Ossington supply corridor.
At 236 mg/L, Little Portugal residents face persistent scale challenges in this neighbourhood's dense stock of Victorian rowhouses and semi-detached homes. The City of Toronto provides multilingual water quality information at toronto.ca/water — the City maintains Portuguese-language resources important for this community. Health Canada lead service line precautionary guidance is strongly applicable in Little Portugal's Victorian-era residential streets, where original 1900s–1920s lead service lines are common in the established rowhouse stock.
Geology & Source: Supplied by City of Toronto from Lake Ontario via the F.J. Horgan Water Treatment Plant — the Little Portugal downtown west Toronto distribution zone carries very hard water at 236 mg/L (13.8 gpg), consistent with the Ossington–Dundas West supply corridor.